Box-type eccentrically braced energy dissipation beam segment and eccentrically braced member

Abstract

The application discloses a box type eccentric support energy dissipation beam segment, which comprises a first transition segment, an energy dissipation beam segment and a second transition segment which are detachably connected along a first direction, the energy dissipation beam segment comprises a first upper flange plate, a first lower flange plate, a first web plate and a second web plate, the end of the first upper flange plate and the first lower flange plate in the first direction is provided with an opening, the opening is provided along the up-down direction and penetrates through the first upper flange plate or the first lower flange plate, the first web plate and the second web plate are arranged at intervals along a second direction, the first web plate and the second web plate are connected to the bottom surface of the first upper flange plate and the top surface of the first lower flange plate, and the energy dissipation beam segment satisfies: M S ≡μ·V S , or V S ≡μ·M S The box type eccentric support energy dissipation beam segment can fully exert the energy dissipation capacity of the energy dissipation beam segment, improve the bending resistance and the torsion resistance, and facilitate dismounting and replacement.

Description

Technical Field

[0001] This invention relates to the field of steel structure building technology, specifically to a box-type eccentrically supported energy-dissipating beam segment and an eccentrically supported component. Background Technology

[0002] Seismic design of steel structure buildings is a crucial issue currently facing structural engineers. According to earthquake damage surveys, the damage to steel structures under seismic loads is mostly localized, eventually leading to overall failure. Eccentrically braced structures are a type of structural system with strong energy dissipation capabilities. An eccentrically braced energy-dissipating beam consists of an energy-dissipating beam segment and non-energy-dissipating beam segments located at both ends of the energy-dissipating beam segment. The energy-dissipating and non-energy-dissipating beam segments are integrally formed.

[0003] However, during an earthquake, only the web of a shear-yielding energy-dissipating beam undergoes plastic deformation, while only the flange of a bending-yielding energy-dissipating beam undergoes plastic deformation. The plastic deformation of both is insufficient, resulting in the incomplete utilization of the beam's ability to dissipate seismic energy. Although both the flange and web of a bending-shear energy-dissipating beam can undergo plastic deformation, the plastic deformation of the flange and web occurs simultaneously. This leads to an accelerated rate of decrease in the structural stiffness and deformation of the bending-shear energy-dissipating beam. Furthermore, once the energy-dissipating beam segment has undergone plastic deformation and dissipated energy, it is difficult to disassemble and replace, making structural repair challenging. Summary of the Invention

[0004] This invention is based on the inventor's discoveries and understanding of the following facts and problems:

[0005] The related technology proposes an eccentrically supported energy-dissipating beam segment structure. Traditional eccentrically supported energy-dissipating beam segment structures are usually designed as shear yielding type energy-dissipating beam segments or bending yielding type energy-dissipating beam segments.

[0006] However, the inventors discovered in practical applications that during earthquakes, only the web of the shear-yielding energy-dissipating beam segment undergoes shear plastic deformation, while the flange does not. Similarly, only the flange of the bending-yielding energy-dissipating beam segment undergoes plastic deformation, while the web does not. Therefore, the plastic deformation of either shear-yielding or bending-yielding energy-dissipating beam segments is not fully utilized, and their ability to dissipate seismic energy is not fully realized. Further improvements in the energy dissipation effect and seismic performance of these two types of energy-dissipating beam segments are needed. In bending-shear energy-dissipating beams, both the flange and web can undergo plastic deformation, but this deformation occurs simultaneously. This leads to a faster decrease in structural stiffness and a faster deformation rate, resulting in a greater impact from earthquakes.

[0007] In addition, in related technologies, the cross-section of the energy-dissipating beam segment perpendicular to the extension direction of the energy-dissipating beam segment is I-shaped, which results in limited bending and torsional resistance of the eccentrically supported energy-dissipating beam segment.

[0008] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention propose a box-type eccentrically supported energy-dissipating beam segment and an eccentrically supported component. This box-type eccentrically supported energy-dissipating beam segment can fully utilize the energy-dissipating capacity of the beam segment, reduce the rate of decrease in the structural stiffness of the energy-dissipating beam segment and the catastrophic impact caused by excessive deformation of the energy-dissipating beam segment, improve the bending and torsional resistance of the energy-dissipating beam segment, and facilitate the disassembly and replacement of the energy-dissipating beam segment by workers.

[0009] The box-shaped eccentrically supported energy-dissipating beam segment of this invention includes a first transition segment, an energy-dissipating beam segment, and a second transition segment detachably connected along a first direction. The energy-dissipating beam segment includes a first upper flange plate, a first lower flange plate, a first web plate, and a second web plate. The first upper flange plate, the first lower flange plate, the first web plate, and the second web plate all extend along the first direction. The first upper flange plate and the first lower flange plate are arranged opposite each other in the vertical direction. The ends of the first upper flange plate and the first lower flange plate in the first direction are provided with openings. The openings are opened along the vertical direction and penetrate the first upper flange plate or the first lower flange plate. The first web plate and the second web plate are arranged at intervals along the second direction and are arranged opposite each other in the second direction. The first web plate and the second web plate are both connected to the bottom surface of the first upper flange plate and the top surface of the first lower flange plate. The vertical direction, the first direction, and the second direction are all orthogonal to each other.

[0010] The energy-dissipating beam segment satisfies: M S ≡μ·V S , or V S ≡μ·M S ,

[0011] Among them, M S The fully plastic flexural bearing capacity of the first upper flange plate or the first lower flange plate of the energy-dissipating beam segment without the opening;

[0012] V S The fully plastic shear capacity of the energy-dissipating beam segment;

[0013] ≡ indicates equivalent to;

[0014] μ is a constant coefficient, with a value range of 1.1 ≤ μ ≤ 1.25.

[0015] The energy-dissipating beam segment of the box-type eccentrically supported energy-dissipating beam segment in this embodiment of the invention satisfies M. S ≡μ·VS Under seismic loading, the first and second webs of the energy-dissipating beam segment first undergo shear yielding and plastic deformation, followed by the first upper flange and the first lower flange; the energy-dissipating beam segment satisfies V S ≡μ·M s Under seismic loading, the first and second upper flanges of the energy-dissipating beam segment undergo plastic deformation first, followed by shear yielding and plastic deformation of the first and second webs. This ensures that the first upper flange, first lower flange, first web, and second web of the energy-dissipating beam segment can all undergo plastic deformation under seismic loading, preventing simultaneous plastic deformation of these components. This slows down the decrease in structural stiffness and deformation rate of the energy-dissipating beam segment, reducing the impact of earthquake damage. The cross-section perpendicular to the extension direction of the energy-dissipating beam segment is box-shaped to improve its bending and torsional resistance. Therefore, the energy-dissipating capacity of the box-shaped eccentrically supported energy-dissipating beam segment in this embodiment can be fully utilized, exhibiting strong bending and torsional resistance, and facilitating disassembly and replacement by workers.

[0016] In some embodiments, the energy-dissipating beam segment satisfies:

[0017]

[0018]

[0019]

[0020]

[0021]

[0022]

[0023] in,

[0024] These are the design values ​​for the resistance to bending moment, shear force, and axial force of the energy-dissipating beam segment;

[0025] Under non-seismic conditions, the combined values ​​of bending moment, shear force, and axial force of the energy-dissipating beam segment under the basic load combination effect;

[0026] Under seismic conditions, the combined values ​​of bending moment, shear force, and axial force of the energy-dissipating beam segment under the basic load combination effect;

[0027] γ RE This is the seismic adjustment coefficient for bearing capacity;

[0028] η is a constant amplification factor, greater than 1.0.

[0029] In some embodiments, the energy-dissipating beam segment satisfies: or

[0030] in,

[0031] These are the design values ​​for the bending moment and shear resistance of the energy-dissipating beam segment;

[0032] M S The fully plastic flexural bearing capacity of the first upper flange plate or the first lower flange plate of the energy-dissipating beam segment without the opening;

[0033] V S This refers to the fully plastic shear capacity of the energy-dissipating beam segment;

[0034] l2 is the dimension of the energy-dissipating beam segment in the first direction.

[0035] In some embodiments, the energy-dissipating beam segment satisfies: in,

[0036] M S The fully plastic flexural bearing capacity of the first upper flange plate or the first lower flange plate of the energy-dissipating beam segment without the opening;

[0037] The fully plastic bending bearing capacity at the opening of the first upper flange plate or the first lower flange plate of the energy dissipation beam segment;

[0038] x is the distance of the opening on the first upper flange of the energy-dissipating beam segment in the first direction, or the distance of the opening on the first lower flange of the energy-dissipating beam segment in the first direction.

[0039] l2 is the dimension of the energy-dissipating beam segment in the first direction.

[0040] In some embodiments, the dimensions of the first upper flange or the first lower flange in the second direction satisfy:

[0041] b2>2·[(0.29·μ·l2-0.25·h2)·h2·t w2 ] / [t f2 ·(h2+t f2 )];

[0042] The dimensions of the openings on the first upper flange or the first lower flange in the second direction satisfy the following:

[0043] b w =b2-[2·(0.29·μ·x-0.25·h2)·h2·tw2 ] / [t f2 ·(h2+t f2 )];in,

[0044] b2 is the dimension of the first upper flange plate or the first lower flange plate of the energy-dissipating beam segment in the second direction;

[0045] b w The size of the opening on the first upper flange of the energy-dissipating beam segment in the second direction, or the size of the opening on the first lower flange of the energy-dissipating beam segment in the second direction;

[0046] t f2 The dimension of the first upper flange plate or the first lower flange plate of the energy-dissipating beam segment in the vertical direction;

[0047] t w2 The dimension of the first web or the second web of the energy-dissipating beam segment in the second direction;

[0048] h2 is the dimension of the first web or the second web of the energy-dissipating beam segment in the vertical direction;

[0049] l2 is the dimension of the energy-dissipating beam segment in the first direction;

[0050] x is the distance from the center of the opening on the first upper flange of the energy-dissipating beam segment to the middle of the energy-dissipating beam segment in the first direction, or the distance from the center of the opening on the first lower flange of the energy-dissipating beam segment to the middle of the energy-dissipating beam segment in the first direction.

[0051] In some embodiments, the dimensions of the first upper flange or the first lower flange in the second direction satisfy:

[0052] b2=2·[(0.29·μ·l2-0.25·h2)·h2·t w2 ] / [t f2 ·(h2+t f2 )];

[0053] The dimensions of the openings on the first upper flange or the first lower flange in the second direction satisfy the following:

[0054] b w <b2-[2·(0.29·μ·x-0.25·h2)·h2·t w2 ] / [t f2 ·(h2+t f2 )],in,

[0055] b2 is the dimension of the first upper flange plate or the first lower flange plate of the energy-dissipating beam segment in the second direction;

[0056] b w The size of the opening on the first upper flange of the energy-dissipating beam segment in the second direction, or the size of the opening on the first lower flange of the energy-dissipating beam segment in the second direction;

[0057] t f2 The dimension of the first upper flange plate or the first lower flange plate of the energy-dissipating beam segment in the vertical direction;

[0058] t w2 The dimension of the first web or the second web of the energy-dissipating beam segment in the second direction;

[0059] h2 is the dimension of the first web or the second web of the energy-dissipating beam segment in the vertical direction;

[0060] l2 is the dimension of the energy-dissipating beam segment in the first direction;

[0061] x is the distance from the center of the opening on the first upper flange of the energy-dissipating beam segment to the middle of the energy-dissipating beam segment in the first direction, or the distance from the center of the opening on the first lower flange of the energy-dissipating beam segment to the middle of the energy-dissipating beam segment in the first direction.

[0062] In some embodiments, the dimensions of the first web or the second web in the vertical direction satisfy:

[0063]

[0064] The dimensions of the opening on the first upper flange or the first lower flange in the second direction satisfy:

[0065] b w <b2-[2·(0.29·μ·x-0.25·h2)·h2·t w2 ] / [t f2 ·(h2+t f2 )];Among them;Among them,

[0066] b2 is the dimension of the first upper flange plate or the first lower flange plate of the energy-dissipating beam segment in the second direction;

[0067] b w The size of the opening on the first upper flange of the energy-dissipating beam segment in the second direction, or the size of the opening on the first lower flange of the energy-dissipating beam segment in the second direction;

[0068] t f2 The dimension of the first upper flange plate or the first lower flange plate of the energy-dissipating beam segment in the vertical direction;

[0069] t w2 The dimension of the first web or the second web of the energy-dissipating beam segment in the second direction;

[0070] h2 is the dimension of the first web or the second web of the energy-dissipating beam segment in the vertical direction;

[0071] l2 is the dimension of the energy-dissipating beam segment in the first direction;

[0072] x is the distance from the center of the opening on the first upper flange of the energy-dissipating beam segment to the middle of the energy-dissipating beam segment in the first direction, or the distance from the center of the opening on the first lower flange of the energy-dissipating beam segment to the middle of the energy-dissipating beam segment in the first direction.

[0073] In some embodiments, the dimensions of the first web or the second web in the vertical direction satisfy:

[0074]

[0075] The dimensions of the opening on the first upper flange or the first lower flange in the second direction satisfy:

[0076] b2>2·[(0.29·μ·l2-0.25·h2)·h2·t w2 ] / [t f2 ·(h2+t f2 )];in,

[0077] b2 is the dimension of the first upper flange plate or the first lower flange plate of the energy-dissipating beam segment in the second direction;

[0078] b w The size of the opening on the first upper flange of the energy-dissipating beam segment in the second direction, or the size of the opening on the first lower flange of the energy-dissipating beam segment in the second direction;

[0079] t f2 The dimension of the first upper flange plate or the first lower flange plate of the energy-dissipating beam segment in the vertical direction;

[0080] t w2 The dimension of the first web or the second web of the energy-dissipating beam segment in the second direction;

[0081] h2 is the dimension of the first web or the second web of the energy-dissipating beam segment in the vertical direction;

[0082] l2 is the dimension of the energy-dissipating beam segment in the first direction;

[0083] x is the distance from the center of the opening on the first upper flange of the energy-dissipating beam segment to the middle of the energy-dissipating beam segment in the first direction, or the distance from the center of the opening on the first lower flange of the energy-dissipating beam segment to the middle of the energy-dissipating beam segment in the first direction.

[0084] In some embodiments, the first transition segment or the second transition segment satisfies:

[0085]

[0086]

[0087]

[0088]

[0089]

[0090]

[0091] in,

[0092] The design values ​​for the resistance of bending moment, shear force, and axial force of the first transition section or the second transition section;

[0093] Under non-earthquake conditions, the combined values ​​of bending moment, shear force, and axial force of the basic load combination effect of the first transition section or the second transition section;

[0094] Under seismic conditions, the combined values ​​of bending moment, shear force, and axial force of the basic load combination effect of the first transition section or the second transition section;

[0095] M S The fully plastic bending capacity of the energy-dissipating beam segment;

[0096] V S This refers to the fully plastic shear capacity of the energy-dissipating beam segment;

[0097] Under seismic conditions, the internal force combination value of the bending moment due to the basic load combination effect of the energy dissipation beam segment;

[0098] Under seismic conditions, the internal force combination value of the shear force under the basic load combination effect of the energy dissipation beam segment;

[0099] γ RE This is the seismic adjustment coefficient for bearing capacity;

[0100] η is a constant amplification factor, greater than 1.0.

[0101] In some embodiments, the system further includes a first connector and a second connector. The first connector is disposed between one end of the first transition section and one end of the energy-dissipating beam section and is used to detachably connect the first transition section and one end of the energy-dissipating beam section. The second connector is disposed between the other end of the second transition section and the energy-dissipating beam section and is used to detachably connect the second transition section and the other end of the energy-dissipating beam section.

[0102] In some embodiments, each of the first connector and the second connector includes a first connecting plate, a second connecting plate, a third connecting plate, a fourth connecting plate, and a fastener. The first connecting plate and the second connecting plate are disposed opposite to each other, and the third connecting plate and the fourth connecting plate are disposed opposite to each other. The third connecting plate and the fourth connecting plate are located between the first connecting plate and the second connecting plate. The first connecting plate, the second connecting plate, the third connecting plate, and the fourth connecting plate are all provided with through holes. The fastener is inserted into the through holes for detachably connecting one end of the first transition section and the energy dissipation beam section, and the other end of the second transition section and the energy dissipation beam section.

[0103] In some embodiments, the fastener satisfies:

[0104] in,

[0105] The design values ​​of the bending moment and shear force resistance of the fastener connection at the connection between the energy-dissipating beam segment and the first transition segment or the second transition segment;

[0106] R bolt，i The bearing capacity of any of the fasteners at the connection between the energy-dissipating beam segment and the first transition segment or the second transition segment;

[0107] For the connection between the energy-dissipating beam segment and the first transition segment or the second transition segment via the fastener, the design value of the load combination effect bending moment at the connection is replaced by the fully plastic flexural bearing capacity of the first upper flange plate or the first lower flange plate of the energy-dissipating beam segment where there is no opening, and the load effect force of any of the fasteners.

[0108] For the connection between the energy-dissipating beam segment and the first transition segment or the second transition segment via the fastener, the design value of the load combination effect shear force at the connection is replaced by the fully plastic shear bearing capacity of the energy-dissipating beam segment, and the load effect force of any of the fasteners;

[0109] M S The first upper flange plate and the first lower flange plate of the energy-dissipating beam segment have no fully plastic bending bearing capacity at the opening;

[0110] V S This refers to the fully plastic shear capacity of the energy-dissipating beam segment;

[0111] η is a constant amplification factor, greater than 1.0.

[0112] The eccentric support member of this invention includes a first non-energy-dissipating beam segment, a box-shaped eccentric support energy-dissipating beam segment, and a second non-energy-dissipating beam segment arranged sequentially along the first direction. The box-shaped eccentric support energy-dissipating beam segment is any one of the box-shaped eccentric support energy-dissipating beam segments in the preceding claims. One end of the first non-energy-dissipating beam segment is connected to one end of the box-shaped eccentric support energy-dissipating beam segment, and one end of the second non-energy-dissipating beam segment is connected to the other end of the box-shaped eccentric support energy-dissipating beam segment.

[0113] The eccentric support component of the present invention can fully utilize the energy dissipation capacity of the box-type eccentrically supported energy-dissipating beam segment, and can avoid the structural stiffness of the energy-dissipating beam segment from decreasing too quickly, thereby reducing the impact of earthquake disasters. In addition, workers can disassemble and replace the energy-dissipating beam segment that has undergone plastic deformation and energy dissipation, thus making the eccentric support component of the present invention easy to repair.

[0114] In some embodiments, the first non-energy-dissipating beam segment or the second non-energy-dissipating beam segment satisfies:

[0115]

[0116]

[0117]

[0118]

[0119]

[0120]

[0121] in,

[0122] The design values ​​of the bending moment, shear force, and axial force of the first non-energy-dissipating beam segment or the second non-energy-dissipating beam segment;

[0123] Under non-seismic conditions, the combined values ​​of bending moment, shear force, and axial force of the first non-energy-dissipating beam segment or the second non-energy-dissipating beam segment under the load and basic combination effect.

[0124] Under seismic conditions, the combined values ​​of bending moment, shear force, and axial force of the first or second non-energy-dissipating beam segment under the load and basic combination effect.

[0125] M S The fully plastic bending capacity of the energy-dissipating beam segment;

[0126] V S This refers to the fully plastic shear capacity of the energy-dissipating beam segment;

[0127] Under seismic conditions, the internal force combination value of the bending moment due to the basic load combination effect of the energy dissipation beam segment;

[0128] Under seismic conditions, the internal force combination value of the shear force under the basic load combination effect of the energy dissipation beam segment;

[0129] γ RE This is the seismic adjustment coefficient for bearing capacity;

[0130] η is a constant amplification factor, greater than 1.0.

[0131] In some embodiments, the eccentric support member further includes a first support segment and a second support segment. One end of the first support segment is connected to the bottom of the end of the first non-energy-dissipating beam segment near the end of the box-shaped eccentric support energy-dissipating beam segment. The other end of the first support segment extends downward and is inclined away from the box-shaped eccentric support energy-dissipating beam segment. One end of the second support segment is connected to the bottom surface of the end of the second non-energy-dissipating beam segment near the end of the box-shaped eccentric support energy-dissipating beam segment. The other end of the second support segment extends downward and is inclined away from the box-shaped eccentric support energy-dissipating beam segment.

[0132] In some embodiments, the first support segment or the second support segment satisfies:

[0133]

[0134]

[0135]

[0136]

[0137]

[0138]

[0139] in,

[0140] The design values ​​for the resistance of bending moment, shear force, and axial force of the first support segment or the second support segment;

[0141] Under non-earthquake conditions, the combined values ​​of bending moment, shear force, and axial force of the basic load combination effect of the first support segment or the second support segment;

[0142] Under seismic conditions, the combined values ​​of bending moment, shear force, and axial force of the basic load combination effect of the first or second support segment;

[0143] M S The fully plastic bending capacity of the energy-dissipating beam segment;

[0144] V S This refers to the fully plastic shear capacity of the energy-dissipating beam segment;

[0145] Under seismic conditions, the internal force combination value of the bending moment due to the basic load combination effect of the energy dissipation beam segment;

[0146] Under seismic conditions, the internal force combination value of the shear force under the basic load combination effect of the energy dissipation beam segment;

[0147] γ RE This is the seismic adjustment coefficient for bearing capacity;

[0148] η is a constant amplification factor, greater than 1.0. Attached Figure Description

[0149] Figure 1 This is a structural schematic diagram of the box-type eccentrically supported energy-dissipating beam segment and the eccentrically supported member according to an embodiment of the present invention.

[0150] Figure 2 This is a top view of the box-type eccentrically supported energy-dissipating beam segment and the eccentrically supported member according to an embodiment of the present invention.

[0151] Figure 3 yes Figure 1 A cross-sectional schematic diagram of AA.

[0152] Figure 4 yes Figure 1 A cross-sectional view of BB.

[0153] Figure 5 yes Figure 1A cross-sectional view of CC.

[0154] Figure 6 yes Figure 1 A cross-sectional schematic diagram of DD.

[0155] Reference numerals: 1. First non-energy-dissipating beam segment; 11. Third upper flange plate; 12. Third lower flange plate; 13. Fifth web plate; 14. Sixth web plate; 2. Second non-energy-dissipating beam segment; 3. Box-shaped eccentrically supported energy-dissipating beam segment; 31. First transition section; 311. Second upper flange plate; 312. Second lower flange plate; 313. Third web plate; 314. Fourth web plate; 32. Energy-dissipating beam segment; 321. First upper flange plate; 322. First lower flange plate; 323. First web plate; 324. Second web plate; 325. Opening; 33. Second transition section; 34. First connector; 35. Second connector; 361. First connecting plate; 362. Second connecting plate; 363. Third connecting plate; 364. Fourth connecting plate; 365. Fastener; 4. First support segment; 5. Second support segment; 6. Stiffening plate. Detailed Implementation

[0156] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0157] like Figure 1-6 As shown, the box-type eccentrically supported energy-dissipating beam segment of this embodiment includes a section along a first direction (e.g., Figure 1 The first transition section 31, the energy-dissipating beam section 32, and the second transition section 33 are detachably connected in the left-right direction (as shown). Specifically, as... Figure 1 As shown, the right end of the first transition section 31 is detachably connected to the left end of the energy-dissipating beam section 32, and the right end of the energy-dissipating beam section 32 is detachably connected to the left end of the second transition section 33, so that after the energy-dissipating beam section 32 undergoes plastic deformation and dissipates energy, the staff can disassemble and replace the energy-dissipating beam section 32.

[0158] like Figure 1 and Figure 6 As shown, the energy-dissipating beam segment 32 includes a first upper flange plate 321, a first lower flange plate 322, a first web plate 323, and a second web plate 324. The first upper flange plate 321, the first lower flange plate 322, the first web plate 323, and the second web plate 324 all extend along a first direction. The first upper flange plate 321 and the first lower flange plate 322 are arranged opposite each other in the vertical direction. The first upper flange plate 321 and the first lower flange plate 322 are both provided with openings 325 at their ends in the first direction. The openings 325 are opened in the vertical direction and penetrate through the first upper flange plate 321 or the first lower flange plate 322.

[0159] Specifically, such as Figure 1 and Figure 2 As shown, openings 325 are provided at both ends of the first upper flange plate 321 and the first lower flange plate 322, and the openings 325 are along the second direction (e.g., Figure 2 As shown, the opening 325 is opened in the second direction, thereby changing the effective size of the end of the first upper flange 321 or the first lower flange 322 in the second direction, so as to improve the stress performance of the first upper flange 321 or the first lower flange 322.

[0160] The first web plate 323 and the second web plate 324 are arranged at intervals along the second direction, and are positioned opposite each other in the second direction. Both the first web plate 323 and the second web plate 324 are connected to the bottom surface of the first upper flange plate 321 and the top surface of the first lower flange plate 322. The vertical direction, the first direction, and the second direction are all orthogonal to each other. Specifically, the dimensions of the first upper flange plate 321 in the second direction are the same as those of the first lower flange plate 322 in the second direction. The first upper flange plate 321 and the first lower flange plate 322 can be made of Q235 steel or Q345 steel, and the first web plate 323 and the second web plate 324 can also be made of Q235 steel or Q345 steel.

[0161] Energy-dissipating beam segment 32 satisfies: M S ≡μ·V S , or V S ≡μ·M S ,

[0162] Among them, M S The fully plastic bending bearing capacity at the unperforated 325 locations of the first upper flange plate 321 and the first lower flange plate 322 of the energy-dissipating beam segment 32;

[0163] V S The fully plastic shear bearing capacity of energy-dissipating beam segment 32;

[0164] ≡ indicates equivalent to, specifically, ≡ represents a causal condition, where the result on the left of the symbol “≡” occurs when the condition on the right of the symbol “≡” is met.

[0165] μ is a constant coefficient, with a value range of 1.1 ≤ μ ≤ 1.25.

[0166] The energy-dissipating beam segment 32 of the box-type eccentrically supported energy-dissipating beam segment in this embodiment of the invention satisfies M. S ≡μ·V SUnder the action of an earthquake, the first web 323 and the second web 324 of the energy dissipation beam segment 32 first undergo shear yielding and plastic deformation to strengthen the steel. When the shear bearing capacity of the first web 323 and the second web 324 reaches μ times the fully plastic shear bearing capacity, the bending bearing capacity of the energy dissipation beam segment 32 at the location where there are no openings 325 in the first upper flange plate 321 and the first lower flange plate 322 reaches the fully plastic bending bearing capacity.

[0167] Energy-dissipating beam segment 32 satisfies V S ≡μ·M S Under seismic action, the first upper flange plate 321 and the first lower flange plate 322 of the energy dissipation beam segment 32 first undergo plastic deformation strengthening. When the shear bearing capacity of the energy dissipation beam segment 32 at the location where neither the first upper flange plate 321 nor the first lower flange plate 322 has an opening 325 reaches μ times the fully plastic shear bearing capacity, the first web plate 323 and the second web plate 324 of the energy dissipation beam segment 32 reach the fully plastic shear bearing capacity.

[0168] Therefore, the first upper flange plate 321, the first lower flange plate 322, the first web plate 323, and the second web plate 324 of the energy-dissipating beam segment 32 can all undergo plastic deformation under seismic loading, preventing simultaneous plastic deformation of these components. This slows down the decrease in structural stiffness and deformation rate of the energy-dissipating beam segment 32, reducing the impact of earthquakes. The cross-section perpendicular to the extension direction of the energy-dissipating beam segment 32 is box-shaped to improve its bending and torsional resistance. Thus, the energy-dissipating capacity of the box-shaped eccentrically supported energy-dissipating beam segment of this embodiment can be fully utilized, exhibiting strong bending and torsional resistance, and facilitating disassembly and replacement by workers.

[0169] In some embodiments, the energy-dissipating beam segment 32 satisfies:

[0170]

[0171]

[0172]

[0173]

[0174]

[0175]

[0176] in,

[0177] The design values ​​for the resistance to bending moment, shear force, and axial force of energy-dissipating beam segment 32;

[0178] Under non-seismic conditions, the combined values ​​of bending moment, shear force, and axial force of the energy dissipation beam segment 32 under the basic load combination effect;

[0179] Under seismic conditions, the combined values ​​of bending moment, shear force, and axial force of the energy-dissipating beam segment 32 under the basic load combination effect;

[0180] γ RE This is the seismic adjustment coefficient for bearing capacity;

[0181] η is a constant amplification factor, greater than 1.0. Specifically, the value of η is related to the seismic resistance level of the structure; for details, please refer to the current "Code for Seismic Design of Buildings" (GB 50011). For example:

[0182] When the seismic resistance level is 1, ≥1.3;

[0183] When the seismic resistance level is 2, ≥1.2;

[0184] When the seismic resistance level is 3, ≥1.1.

[0185] Specifically, the energy-dissipating beam segment 32 satisfies the above formula to make the structure of the energy-dissipating beam segment 32 more robust and to improve its energy dissipation capacity, bending bearing capacity and shear bearing capacity during an earthquake.

[0186] In some embodiments, the energy-dissipating beam segment 32 satisfies: or in,

[0187] The design values ​​for bending moment and shear resistance of energy-dissipating beam segment 32;

[0188] M S The fully plastic flexural bearing capacity at the unperforated 325 of the first upper flange plate 321 or the first lower flange plate 322 of the energy dissipation beam segment 32;

[0189] V S The fully plastic shear bearing capacity of energy-dissipating beam segment 32;

[0190] l2 is the dimension of the energy-dissipating beam segment 32 in the first direction.

[0191] Specifically, energy-dissipating beam segment 32 meets the requirements. At that time, the first web 323 or the second web 324 of the energy-dissipating beam segment 32 undergoes shear yielding plastic deformation first, followed by the first upper flange 321 or the first lower flange 322 of the energy-dissipating beam segment 32 undergoing plastic deformation; the energy-dissipating beam segment 32 satisfies When the energy-dissipating beam segment 32 undergoes seismic loading, either the first upper flange plate 321 or the first lower flange plate 322 first undergoes plastic deformation, followed by shear yielding plastic deformation of either the first web plate 323 or the second web plate 324. Thus, the first upper flange plate 321, the first lower flange plate 322, the first web plate 323, and the second web plate 324 of the energy-dissipating beam segment 32 can all undergo plastic deformation under seismic loading, preventing simultaneous plastic deformation of these components and avoiding excessively rapid decrease in structural stiffness and deformation of the energy-dissipating beam segment 32, thereby reducing the impact of seismic hazards.

[0192] In some embodiments, the energy-dissipating beam segment 32 satisfies: in,

[0193] M S The fully plastic flexural bearing capacity at the unperforated 325 of the first upper flange plate 321 or the first lower flange plate 322 of the energy dissipation beam segment 32;

[0194] The fully plastic bending bearing capacity at the opening 325 of the first upper flange plate 321 or the first lower flange plate 322 of the energy dissipation beam segment 32;

[0195] x is the distance of the opening 325 on the first upper flange plate 321 of the energy dissipation beam segment 32 in the first direction, or the distance of the opening 325 on the first lower flange plate 322 of the energy dissipation beam segment 32 in the first direction.

[0196] l2 is the dimension of the energy-dissipating beam segment 32 in the first direction.

[0197] Specifically, energy-dissipating beam segment 32 meets the requirements. This makes the structure of the energy-dissipating beam segment 32 more robust, and improves its energy dissipation capacity, bending bearing capacity, and shear bearing capacity during an earthquake.

[0198] In some embodiments, the dimensions of the first upper flange 321 or the first lower flange 322 in the second direction satisfy:

[0199] b2>2·[(0.29·μ·l2-0.25·h2)·h2·t w2 ] / [t f2 ·(h2+t f2 )];

[0200] The dimensions of the opening 325 on the first upper flange plate 321 or the first lower flange plate 322 in the second direction satisfy the following:

[0201] b w =b2-2·(0.29·μ·x-0.25·h2)·h2·t w2 ] / [tf2 ·(h2+t f2 )];in,

[0202] b2 is the dimension of the first upper flange plate 321 or the first lower flange plate 322 of the energy dissipation beam segment 32 in the second direction;

[0203] b w The size of the opening 325 on the first upper flange plate 321 of the energy-dissipating beam segment 32 in the second direction, or the size of the opening 325 on the first lower flange plate 322 of the energy-dissipating beam segment 32 in the second direction;

[0204] t f2 The dimension of the first upper flange plate 321 or the first lower flange plate 322 of the energy-dissipating beam segment 32 in the vertical direction;

[0205] t w2 The dimension of the first web 323 or the second web 324 of the energy-dissipating beam segment 32 in the second direction;

[0206] h2 is the dimension of the first web 323 or the second web 324 of the energy-dissipating beam segment 32 in the vertical direction;

[0207] l2 is the dimension of the energy-dissipating beam segment 32 in the first direction;

[0208] x is the distance from the center of the opening 325 on the first upper flange plate 321 of the energy-dissipating beam segment 32 to the middle of the energy-dissipating beam segment 32 in the first direction, or the distance from the center of the opening 325 on the first lower flange plate 322 of the energy-dissipating beam segment 32 to the middle of the energy-dissipating beam segment 32 in the first direction.

[0209] Specifically, when the dimensions of the first upper flange 321 or the first lower flange 322 in the second direction satisfy:

[0210] b2>2·[(0.29·μ·l2-0.25·h2)·h2·t w2 ] / [t f2 ·(h2+t f2 )];

[0211] The dimensions of the opening 325 on the first upper flange plate 321 or the first lower flange plate 322 in the second direction satisfy the following:

[0212] b w =b2-2·(0.29·μ·x-0.25·h2)·h2·t w2 ] / [t f2 ·(h2+t f2When the energy-dissipating beam segment 32 undergoes shear yielding deformation first, the first web 323 or the second web 324 first undergoes shear yielding deformation, and then plastic deformation occurs at the opening 325 of the first upper flange 321 or the second upper flange 311.

[0213] In some embodiments, the dimensions of the first upper flange 321 or the first lower flange 322 in the second direction satisfy:

[0214] b2=2·[(0.29·μ·l2-0.25·h2)·h2·t w2 ] / [t f2 ·(h2+t f2 )];

[0215] The dimensions of the opening 325 on the first upper flange plate 321 or the first lower flange plate 322 in the second direction satisfy the following:

[0216] b w <b2-2·(0.29·μ·x-0.25·h2)·h2·t w2 ] / [t f2 ·(h2+t f2 )],in,

[0217] b2 is the dimension of the first upper flange plate 321 or the first lower flange plate 322 of the energy dissipation beam segment 32 in the second direction;

[0218] b w The size of the opening 325 on the first upper flange plate 321 of the energy-dissipating beam segment 32 in the second direction, or the size of the opening 325 on the first lower flange plate 322 of the energy-dissipating beam segment 32 in the second direction;

[0219] t f2 The dimension of the first upper flange plate 321 or the first lower flange plate 322 of the energy-dissipating beam segment 32 in the vertical direction;

[0220] t w2 The dimension of the first web 323 or the second web 324 of the energy-dissipating beam segment 32 in the second direction;

[0221] h2 is the dimension of the first web 323 or the second web 324 of the energy-dissipating beam segment 32 in the vertical direction;

[0222] l2 is the dimension of the energy-dissipating beam segment 32 in the first direction;

[0223] x is the distance from the center of the opening 325 on the first upper flange plate 321 of the energy-dissipating beam segment 32 to the middle of the energy-dissipating beam segment 32 in the first direction, or the distance from the center of the opening 325 on the first lower flange plate 322 of the energy-dissipating beam segment 32 to the middle of the energy-dissipating beam segment 32 in the first direction.

[0224] Specifically, when the dimensions of the first upper flange 321 or the first lower flange 322 in the second direction satisfy:

[0225] b2=2·[(0.29·μ·l2-0.25·h2)·h2·t w2 ] / [t f2 ·(h2+t f2 )];

[0226] The dimensions of the opening 325 on the first upper flange plate 321 or the first lower flange plate 322 in the second direction satisfy the following:

[0227] b w <b2-2·(0.29·μ·x-0.25·h2)·h2·t w2 ] / [t f2 ·(h2+t f2 When the energy-dissipating beam segment 32 undergoes shear yielding plastic deformation first, the first upper flange 321 or the first lower flange 322 undergoes plastic deformation later.

[0228] In some embodiments, the dimensions of the first web 323 or the second web 324 in the vertical direction satisfy the following:

[0229]

[0230] The dimensions of the opening 325 on the first upper flange plate 321 or the first lower flange plate 322 in the second direction satisfy the following:

[0231] b w <b2-2·(0.29·μ·x-0.25·h2)·h2·t w2 ] / [t f2 ·(h2+t f2 )]

[0232] ;in,

[0233] b2 is the dimension of the first upper flange plate 321 or the first lower flange plate 322 of the energy dissipation beam segment 32 in the second direction;

[0234] b w The size of the opening 325 on the first upper flange plate 321 of the energy-dissipating beam segment 32 in the second direction, or the size of the opening 325 on the first lower flange plate 322 of the energy-dissipating beam segment 32 in the second direction;

[0235] t f2 The dimension of the first upper flange plate 321 or the first lower flange plate 322 of the energy-dissipating beam segment 32 in the vertical direction;

[0236] tw2 The dimension of the first web 323 or the second web 324 of the energy-dissipating beam segment 32 in the second direction;

[0237] h2 is the dimension of the first web 323 or the second web 324 of the energy-dissipating beam segment 32 in the vertical direction;

[0238] l2 is the dimension of the energy-dissipating beam segment 32 in the first direction;

[0239] x is the distance from the center of the opening 325 on the first upper flange of the energy-dissipating beam segment 32 to the middle of the energy-dissipating beam segment 32 in the first direction, or the distance from the center of the opening 325 on the first lower flange of the energy-dissipating beam segment 32 to the middle of the energy-dissipating beam segment 32 in the first direction.

[0240] Specifically, the first web 323 or the second web 324 satisfies:

[0241]

[0242] The dimensions of the opening 325 on the first upper flange plate 321 or the first lower flange plate 322 in the second direction satisfy the following:

[0243] b w <b2-2·(0.29·μ·x-0.25·h2)·h2·t w2 ] / [t f2 ·(h2+t f2 When the energy dissipation beam segment 32 undergoes plastic deformation at the end of the first upper flange plate 321 or the first lower flange plate 322, the first web plate 323 or the second web plate 324 undergoes shear yielding plastic deformation subsequently.

[0244] In some embodiments, the dimensions of the first web 323 or the second web 324 in the vertical direction satisfy the following:

[0245]

[0246] The dimensions of the opening 325 on the first upper flange plate 321 or the first lower flange plate 322 in the second direction satisfy the following:

[0247] b2>2·[(0.29·μ·l2-0.25·h2)·h2·t w2 ] / [t f2 ·(h2+t f2 )];in,

[0248] b2 is the dimension of the first upper flange plate 321 or the first lower flange plate 322 of the energy dissipation beam segment 32 in the second direction;

[0249] b wThe size of the opening 325 on the first upper flange plate 321 of the energy-dissipating beam segment 32 in the second direction, or the size of the opening 325 on the first lower flange plate 322 of the energy-dissipating beam segment 32 in the second direction;

[0250] t f2 The dimension of the first upper flange plate 321 or the first lower flange plate 322 of the energy-dissipating beam segment 32 in the vertical direction;

[0251] t w2 The dimension of the first web 323 or the second web 324 of the energy-dissipating beam segment 32 in the second direction;

[0252] h2 is the dimension of the first web 323 or the second web 324 of the energy-dissipating beam segment 32 in the vertical direction;

[0253] l2 is the dimension of the energy-dissipating beam segment 32 in the first direction;

[0254] x is the distance from the center of the opening 325 on the first upper flange of the energy-dissipating beam segment 32 to the middle of the energy-dissipating beam segment 32 in the first direction, or the distance from the center of the opening 325 on the first lower flange of the energy-dissipating beam segment 32 to the middle of the energy-dissipating beam segment 32 in the first direction. Specifically, the first web 323 or the second web 324 satisfies:

[0255]

[0256] The dimensions of the opening 325 on the first upper flange plate 321 or the first lower flange plate 322 in the second direction satisfy the following:

[0257] b2>2·[(0.29·μ·l2-0.25·h2)·h2·t w2 ] / [t f2 ·(h2+t f2 When the energy-consuming beam segment 32 is in the first upper flange plate 321 or the first lower flange plate 322, plastic deformation occurs first at the opening 325 at the end, and then shear yielding plastic deformation occurs after the first web plate 323 or the second web plate 324.

[0258] Therefore, the first upper flange plate 321, the first lower flange plate 322, the first web plate 323, and the second web plate 324 of the energy-dissipating beam segment 32 can all undergo plastic deformation under seismic loading, and the simultaneous plastic deformation of the first upper flange plate 321, the first lower flange plate 322, the first web plate 323, and the second web plate 324 can be avoided, thereby reducing the rate of decrease in structural stiffness and deformation rate of the energy-dissipating beam segment 32 and reducing the impact of earthquake disasters.

[0259] In some embodiments, the first transition segment 31 or the second transition segment 33 satisfies:

[0260]

[0261]

[0262]

[0263]

[0264]

[0265]

[0266] in,

[0267] The design values ​​for the resistance of bending moment, shear force, and axial force of the first transition section 31 or the second transition section 33; Under non-earthquake conditions, the combined values ​​of bending moment, shear force, and axial force of the basic load combination effect of the first transition section 31 or the second transition section 33;

[0268] Under seismic conditions, the combined values ​​of bending moment, shear force, and axial force of the basic load combination effect of the first transition section 31 or the second transition section 33;

[0269] M S The fully plastic bending bearing capacity of energy-dissipating beam segment 32;

[0270] V S The fully plastic shear bearing capacity of energy-dissipating beam segment 32;

[0271] Under seismic conditions, the internal force combination value of the bending moment under the basic load combination effect of energy dissipation beam segment 32;

[0272] Under seismic conditions, the internal force combination value of shear force under the basic load combination effect of energy dissipation beam segment 32;

[0273] γ RE This is the seismic adjustment coefficient for bearing capacity;

[0274] η is a constant amplification factor, greater than 1.0.

[0275] Specifically, such as Figure 1 , Figure 2 and Figure 4As shown, each of the first transition section 31 and the second transition section 33 includes a second upper flange plate 311, a second lower flange plate 312, a third web plate 313, and a fourth web plate 314. The second upper flange plate 311, the second lower flange plate 312, the third web plate 313, and the fourth web plate 314 all extend along a first direction. The second upper flange plate 311 and the second lower flange plate 312 are arranged opposite each other in the vertical direction. The third web plate 313 and the fourth web plate 314 are arranged at intervals in the second direction and are arranged opposite each other in the second direction. The third web plate 313 and the fourth web plate 314 connect the bottom surface of the second upper flange plate 311 and the top surface of the second lower flange plate 312. The third web plate 313 and the fourth web plate 314 are welded to the second upper flange plate 311 and the second lower flange plate 312 to make the structure of the first transition section 31 or the second transition section 33 more stable. The first transition section 31 or the second transition section 33 has a box-shaped cross-section perpendicular to its own extension direction, so as to improve the bending and shear bearing capacity of the first transition section 31 or the second transition section 33.

[0276] Specifically, such as Figure 2 As shown, the right end of the second upper flange 311 or the second lower flange 312 of the first transition section 31 gradually decreases in size in the second direction along the rightward direction, and the left end of the second upper flange 311 or the second lower flange 312 of the second transition section 33 gradually decreases in size in the second direction along the leftward direction.

[0277] Specifically, the first transition segment 31 or the second transition segment 33 satisfies the above formula so that the design of the first transition segment 31 or the second transition segment 33 is simple and the structure is stable.

[0278] In some embodiments, the box-shaped eccentrically supported energy-dissipating beam segment 323 further includes a first connector 34 and a second connector 35, wherein the first connector 34 is disposed at one end of the first transition section 31 and the energy-dissipating beam segment 32 (e.g., Figure 1 Between the left end of the energy-dissipating beam segment 32 shown, a first connector 34 is used to detachably connect one end of the first transition section 31 and the energy-dissipating beam segment 32, and a second connector 35 is provided at the other end of the second transition section 33 and the energy-dissipating beam segment 32 (e.g., the left end of the energy-dissipating beam segment 32). Figure 1 Between the right end of the energy-dissipating beam segment 32 shown, the second connector 35 is used to detachably connect the second transition segment 33 and the other end of the energy-dissipating beam segment 32.

[0279] Specifically, such as Figure 1 and Figure 2As shown, the first connector 34 is located between the right end of the first transition section 31 and the left end of the energy-dissipating beam section 32, and is used to detachably connect the first transition section 31 and the energy-dissipating beam section 32. The second connector 35 is located between the left end of the second transition section 33 and the right end of the energy-dissipating beam section 32, and is also used to detachably connect the first transition section 31 and the energy-dissipating beam section 32. Therefore, when the energy-dissipating beam section 32 undergoes plastic deformation and consumes energy, workers can disassemble and replace the energy-dissipating beam section 32, making the energy-dissipating beam section 32 of this embodiment easy to repair.

[0280] In some embodiments, such as Figure 5 As shown, each of the first connecting member 34 and the second connecting member 35 includes a first connecting plate 361, a second connecting plate 362, a third connecting plate 363, a fourth connecting plate 364, and a fastener 365. The first connecting plate 361 and the second connecting plate 362 are arranged opposite to each other, and the third connecting plate 363 and the fourth connecting plate 364 are arranged opposite to each other, with the third connecting plate 363 and the fourth connecting plate 364 located between the first connecting plate 361 and the second connecting plate 362. The first connecting plate 361, the second connecting plate 362, the third connecting plate 363, and the fourth connecting plate 364 are all provided with through holes (not shown). The fastener 365 passes through the through holes for detachably connecting one end of the first transition section 31 and the energy dissipation beam section 32, and the other end of the second transition section 33 and the energy dissipation beam section 32.

[0281] Specifically, the example of the left end of the first connecting member 34 connecting the first transition section 31 and the energy-dissipating beam section 32 will be used for illustration. Figure 1 , Figure 2 and Figure 5 As shown, the left end of the first connecting plate 361 contacts the top surface of the right end of the second upper flange plate 311 and is connected by fastener 365. The right end of the first connecting plate 361 contacts the top surface of the left end of the first upper flange plate 321 and is connected by fastener 365. The left end of the second connecting plate 362 contacts the bottom surface of the right end of the second lower flange plate 312 and is connected by fastener 365. The right end of the second connecting plate 362 contacts the bottom surface of the left end of the first lower flange plate 322 and is connected by fastener 365.

[0282] The left end of the third connecting plate 363 contacts the right end of the third web plate 313 on the side away from the fourth web plate 314 and is connected by fastener 365. The right end of the third connecting plate 363 contacts the left end of the first web plate 323 on the side away from the second web plate 324 and is connected by fastener 365. The left end of the fourth connecting plate 364 contacts the right end of the second web plate 324 on the side away from the first web plate 323 and is connected by fastener 365. The right end of the fourth connecting plate 364 contacts the left end of the fourth web plate 314 on the side away from the third web plate 313 and is connected by fastener 365. Therefore, the detachable connection between the energy-dissipating beam segment 32 and the first transition segment 31 and the second transition segment 33 is simple, making it easy for workers to disassemble and replace the energy-dissipating beam segment 32. Furthermore, the structures of the first connecting member 34 and the second connecting member 35 are simple, saving costs.

[0283] Specifically, such as Figure 1 and Figure 2 As shown, the first upper flange plate 321 has an opening 325 at its left and right ends, and the first lower flange plate 322 has an opening 325 at its left and right ends. When the energy dissipation beam segment 32 is connected to the first connector 34 or the second connector 35, the fastener 365 passes through the through hole to connect the energy dissipation beam segment 32 and the first connector 34 or the second connector 35. Thus, the openings 325 on the first upper flange plate 321 and the second upper flange plate 311 facilitate the installation and removal of the fastener 365.

[0284] In some embodiments, fastener 365 satisfies:

[0285] in,

[0286] The design values ​​of bending moment and shear force resistance of the fastener 365 at the connection between the energy dissipation beam segment 32 and the first transition segment 31 or the second transition segment 33;

[0287] R bolt，i The bearing capacity of any fastener 365 at the connection between the energy-dissipating beam segment 32 and the first transition segment 31 or the second transition segment 33;

[0288] For the connection between the energy dissipation beam segment 32 and the first transition segment 31 or the second transition segment 33 via fastener 365, the fully plastic flexural bearing capacity of the first upper flange plate 321 or the second upper flange plate 311 of the energy dissipation beam segment 32 without openings 325 is used to replace the design value of the load combination effect bending moment at the connection, and the load effect force of any fastener 365.

[0289] For the connection between the energy dissipation beam segment 32 and the first transition segment 31 or the second transition segment 33 via fastener 365, the fully plastic shear bearing capacity of the energy dissipation beam segment 32 is used to replace the load combination effect shear force design value at the connection, and the load effect force of any fastener 365.

[0290] M S The fully plastic bending bearing capacity at the point where neither the first upper flange plate 321 nor the first lower flange plate 322 of the energy-dissipating beam segment 32 has an opening 325;

[0291] V S The fully plastic shear bearing capacity of energy-dissipating beam segment 32;

[0292] η is a constant amplification factor, greater than 1.0.

[0293] Specifically, the fastener 365 is designed to meet the following requirements:

[0294] and This ensures that the fastener 365 is simple to design, structurally stable, and meets the requirements for detachable connection between the energy-dissipating beam segment 32 and the first transition segment 31 and the second transition segment 33.

[0295] like Figure 1 As shown, the eccentric support member of this embodiment includes a first non-energy-dissipating beam segment 1, a box-shaped eccentric support energy-dissipating beam segment 3, and a second non-energy-dissipating beam segment 2 arranged sequentially along a first direction. One end of the first non-energy-dissipating beam segment 1 is connected to one end of the box-shaped eccentric support energy-dissipating beam segment 3, and one end of the second non-energy-dissipating beam segment 2 is connected to the other end of the box-shaped eccentric support energy-dissipating beam segment 3.

[0296] The eccentric support component of the present invention can fully utilize the energy dissipation capacity of the box-type eccentric support energy dissipation beam segment 3, and can avoid the structural stiffness of the energy dissipation beam segment 32 from decreasing too quickly, thereby reducing the impact of earthquake disasters. In addition, workers can disassemble and replace the energy dissipation beam segment 32 that has undergone plastic deformation and energy dissipation, thus making the eccentric support component of the present invention easy to repair.

[0297] In some embodiments, the first non-energy-dissipating beam segment 1 or the second non-energy-dissipating beam segment 2 satisfies:

[0298]

[0299]

[0300]

[0301]

[0302]

[0303]

[0304] in,

[0305] The design values ​​of the bending moment, shear force, and axial force resistance of the first non-energy-dissipating beam segment 1 or the second non-energy-dissipating beam segment 2;

[0306] Under non-seismic conditions, the combined values ​​of internal forces, including bending moment, shear force, and axial force, under the load and basic combination effect of the first non-energy-dissipating beam segment 1 or the second non-energy-dissipating beam segment 2;

[0307] Under seismic conditions, the combined values ​​of internal forces including bending moment, shear force, and axial force under the load and basic combination effect of the first non-energy-dissipating beam segment 1 or the second non-energy-dissipating beam segment 2;

[0308] M S The fully plastic bending bearing capacity of energy-dissipating beam segment 32;

[0309] V S The fully plastic shear bearing capacity of energy-dissipating beam segment 32;

[0310] Under seismic conditions, the internal force combination value of the bending moment under the basic load combination effect of energy dissipation beam segment 32;

[0311] Under seismic conditions, the internal force combination value of shear force under the basic load combination effect of energy dissipation beam segment 32;

[0312] γ RE This is the seismic adjustment coefficient for bearing capacity;

[0313] η is a constant amplification factor, greater than 1.0.

[0314] Specifically, such as Figure 1 , Figure 2 and Figure 3As shown, each of the first non-energy-dissipating beam segment 1 and the second non-energy-dissipating beam segment 2 includes a third upper flange plate 11, a third lower flange plate 12, a fifth web plate 13 and a sixth web plate 14. The third upper flange plate 11, the third lower flange plate 12, the fifth web plate 13, and the sixth web plate 14 all extend along the first direction. The third upper flange plate 11 and the third lower flange plate 12 are arranged opposite each other in the vertical direction. The fifth web plate 13 and the sixth web plate 14 are arranged at intervals in the second direction and are arranged opposite each other in the second direction. The fifth web plate 13 and the sixth web plate 14 connect the bottom surface of the third upper flange plate 11 and the top surface of the third lower flange plate 12. The fifth web plate 13 and the sixth web plate 14 are welded to the third upper flange plate 11 and the third lower flange plate 12. The first non-energy-dissipating beam segment 1 and the second non-energy-dissipating beam segment 2 have box-shaped cross sections perpendicular to their own extension direction to make the structure of the first non-energy-dissipating beam segment 1 and the second non-energy-dissipating beam segment 2 more stable.

[0315] Specifically, the dimensions of the third upper flange 11 in the second direction are equal to the dimensions of the third lower flange 12 in the second direction.

[0316] In some embodiments, such as Figure 1 and Figure 2 As shown, the eccentric support member also includes a stiffening plate 6. The stiffening ribs are located at the connection between the first non-energy-dissipating beam segment 1 and the first transition segment 31 or the second non-energy-dissipating beam segment 2 and the second transition segment 33, so as to improve the structural stiffness at the connection between the first non-energy-dissipating beam segment 1 and the first transition segment 31 or the second non-energy-dissipating beam segment 2 and the second transition segment 33, thereby making the structure of the eccentric support member more robust.

[0317] like Figure 1 and Figure 2 As shown, there are two sets of stiffening plates 6. One set of stiffening plates 6 is located at the right end of the first non-energy-dissipating beam segment 1, and the other set of stiffening plates 6 is located at the left end of the second non-energy-dissipating beam segment 2. Each set of stiffening plates 6 includes two oppositely arranged stiffening plates 6. These two stiffening plates 6 are spaced apart in the left-right direction and are located between the fifth web 13 and the sixth web 14 to connect the fifth web 13 and the sixth web 14, thereby improving the structural stiffness at the connection between the first non-energy-dissipating beam segment 1 and the first transition segment 31, and the structural stiffness at the connection between the second non-energy-dissipating beam segment 2 and the second transition segment 33.

[0318] In some embodiments, the eccentric support member further includes a first support segment 4 and a second support segment 5. One end of the first support segment 4 (e.g., Figure 1 The upper end of the first support segment 4 shown) and the end of the first non-energy-dissipating beam segment 1 near the box-shaped eccentric support energy-dissipating beam segment 3 (as shown) Figure 1 The bottom of the first non-energy-dissipating beam segment 1 (as shown) is connected to the other end of the first support segment 4 (as shown). Figure 1The lower end of the first support segment 4 (as shown) extends downward and is inclined away from the box-shaped eccentric support energy-dissipating beam segment 3. One end of the second support segment 5 (as shown) Figure 1 The upper end of the second support segment 5 shown) and the end of the second non-energy-dissipating beam segment 2 near the box-shaped eccentric support energy-dissipating beam segment 3 (as shown) Figure 1 The bottom surface of the second non-energy-dissipating beam segment 2 (as shown) is connected to the left end of the second non-energy-dissipating beam segment 2. The other end of the second support segment 5 (as shown) is connected to the bottom surface of the second non-energy-dissipating beam segment 2 (as shown). Figure 1 The lower end of the second support segment 5 shown extends in a downward direction and is inclined away from the box-shaped eccentric support energy dissipation beam segment 3.

[0319] Specifically, such as Figure 1 and Figure 2 As shown, the upper end of the first support segment 4 is connected to the bottom of the right end of the first non-energy-consuming beam segment 1, and the lower end of the first support segment 4 extends to the lower left in the left-right direction. The upper end of the second support segment 5 is connected to the bottom of the left end of the second support segment 5, and the lower end of the second support segment 5 extends to the lower right in the left-right direction.

[0320] In some embodiments, the first support segment 4 or the second support segment 5 satisfies:

[0321]

[0322]

[0323]

[0324]

[0325]

[0326]

[0327] in,

[0328] The design values ​​for the resistance to bending moment, shear force, and axial force of the first support segment 4 or the second support segment 5;

[0329] Under non-seismic conditions, the combined values ​​of bending moment, shear force, and axial force of the basic load combination effect of the first support segment 4 or the second support segment 5;

[0330] Under seismic conditions, the combined values ​​of bending moment, shear force, and axial force of the basic load combination effect of the first support segment 4 or the second support segment 5;

[0331] M S The fully plastic bending bearing capacity of energy-dissipating beam segment 32;

[0332] V S The fully plastic shear bearing capacity of energy-dissipating beam segment 32;

[0333] Under seismic conditions, the internal force combination value of the bending moment under the basic load combination effect of energy dissipation beam segment 32;

[0334] Under seismic conditions, the internal force combination value of shear force under the basic load combination effect of energy dissipation beam segment 32;

[0335] γ RE This is the seismic adjustment coefficient for bearing capacity;

[0336] η is a constant amplification factor, greater than 1.0.

[0337] Specifically, the first support segment 4 and the second support segment 5 meet the above requirements so that the design of the first support segment 4 and the second support segment 5 is simple and the structure is stable.

[0338] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0339] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0340] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0341] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0342] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0343] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A box-type eccentrically supported energy-dissipating beam segment, characterized in that, The system includes a first transition section (31), an energy-dissipating beam section (32), and a second transition section (33) that are detachably connected along a first direction. The energy-dissipating beam section (32) includes a first upper flange plate (321), a first lower flange plate (322), a first web plate (323), and a second web plate (324). The first upper flange plate (321), the first lower flange plate (322), the first web plate (323), and the second web plate (324) all extend along the first direction. The first upper flange plate (321) and the first lower flange plate (322) are arranged opposite each other in the vertical direction. Each of the upward ends is provided with an opening (325), the opening (325) is opened along the vertical direction, and the opening (325) penetrates the first upper flange plate (321) or the first lower flange plate (322). The first web plate (323) and the second web plate (324) are arranged at intervals along the second direction, and the first web plate (323) and the second web plate (324) are arranged opposite to each other in the second direction. The first web plate (323) and the second web plate (324) are both connected to the bottom surface of the first upper flange plate (321) and the top surface of the first lower flange plate (322). The vertical direction, the first direction and the second direction are orthogonal to each other. The energy-dissipating beam segment (32) satisfies: ,or , in, The full plastic bending bearing capacity of the first upper flange plate (321) or the first lower flange plate (322) of the energy dissipation beam segment (32) without the opening (325); The fully plastic shear bearing capacity of the energy-dissipating beam segment (32); It means equivalent to; This is a constant coefficient, with a value range of 1.

1. 1.25; It also includes a first connector (34) and a second connector (35). The first connector (34) is disposed between the first transition section (31) and one end of the energy-dissipating beam section (32) and is used to detachably connect the first transition section (31) and one end of the energy-dissipating beam section (32). The second connector (35) is disposed between the second transition section (33) and the other end of the energy-dissipating beam section (32) and is used to detachably connect the second transition section (33) and the other end of the energy-dissipating beam section (32). Each of the first connector (34) and the second connector (35) includes a first connecting plate (361), a second connecting plate (362), a third connecting plate (363), a fourth connecting plate (364), and a fastener (365). The first connecting plate (361) and the second connecting plate (362) are arranged opposite to each other, and the third connecting plate (363) and the fourth connecting plate (364) are arranged opposite to each other. The third connecting plate (363) and the fourth connecting plate (364) are located between the first connecting plate (361) and the second connecting plate (362). The first connecting plate (361), the second connecting plate (362), the third connecting plate (363), and the fourth connecting plate (364) are all provided with through holes. The fastener (365) is inserted into the through holes for detachably connecting one end of the first transition section (31) and the energy dissipation beam section (32), and the other end of the second transition section (33) and the energy dissipation beam section (32). The fastener (365) satisfies: ; ; ;in, , The design values ​​of the bending moment and shear force resistance of the fastener (365) at the connection between the energy dissipation beam segment (32) and the first transition segment (31) or the second transition segment (33); The bearing capacity of any of the fasteners (365) at the connection between the energy-dissipating beam segment (32) and the first transition segment (31) or the second transition segment (33); At the connection point between the energy-dissipating beam segment (32) and the first transition segment (31) or the second transition segment (33) via the fastener (365), the design value of the load combination effect bending moment at the connection point is replaced by the fully plastic flexural bearing capacity of the first upper flange plate (321) and the first lower flange plate (322) of the energy-dissipating beam segment (32) where there is no opening (325), and the load effect force of any of the fasteners (365); For the connection between the energy dissipation beam segment (32) and the first transition segment (31) or the second transition segment (33) via the fastener (365), the design value of the load combination effect shear force at the connection is replaced by the fully plastic shear bearing capacity of the energy dissipation beam segment (32), and the load effect force of any of the fasteners (365); The first upper flange plate (321) and the first lower flange plate (322) of the energy dissipation beam segment (32) have no fully plastic bending bearing capacity at the opening (325); The fully plastic shear bearing capacity of the energy-dissipating beam segment (32); It is a constant amplification factor, greater than 1.

0.

2. The box-type eccentrically supported energy-dissipating beam segment according to claim 1, characterized in that, The energy-dissipating beam segment (32) satisfies: ； ； ； ； ； ； in, The design values ​​of the resistance to bending moment, shear force, and axial force of the energy-dissipating beam segment (32); Under non-earthquake conditions, the combined values ​​of bending moment, shear force, and axial force of the basic load combination effect of the energy dissipation beam segment (32); Under seismic conditions, the combined values ​​of bending moment, shear force, and axial force of the energy-dissipating beam segment (32) under the basic load combination effect; This is the seismic adjustment coefficient for bearing capacity; It is a constant amplification factor, greater than 1.

0.

3. The box-type eccentrically supported energy-dissipating beam segment according to claim 2, characterized in that, The energy-dissipating beam segment (32) satisfies: ,or , in, The design values ​​of bending moment and shear resistance of the energy-dissipating beam segment (32); The full plastic bending bearing capacity of the first upper flange plate (321) or the first lower flange plate (322) of the energy dissipation beam segment (32) without the opening (325); The fully plastic shear bearing capacity of the energy-dissipating beam segment (32); The dimension of the energy-dissipating beam segment (32) in the first direction.

4. The box-type eccentrically supported energy-dissipating beam segment according to claim 3, characterized in that, The energy-dissipating beam segment (32) satisfies: ,in, The full plastic bending bearing capacity of the first upper flange plate (321) or the first lower flange plate (322) of the energy dissipation beam segment (32) without the opening (325); The fully plastic bending bearing capacity at the opening (325) of the first upper flange plate (321) or the first lower flange plate (322) of the energy dissipation beam segment (32); The distance of the opening (325) on the first upper flange plate (321) of the energy-dissipating beam segment (32) in the first direction, or the distance of the opening (325) on the first lower flange plate (322) of the energy-dissipating beam segment (32) in the first direction; The dimension of the energy-dissipating beam segment (32) in the first direction.

5. The box-type eccentrically supported energy-dissipating beam segment according to claim 1, characterized in that, The dimensions of the first upper flange (321) or the first lower flange (322) in the second direction satisfy: ； The dimensions of the opening (325) on the first upper flange plate (321) or the first lower flange plate (322) in the second direction satisfy: ;in, The dimension of the first upper flange plate (321) or the first lower flange plate (322) of the energy-dissipating beam segment (32) in the second direction; The size of the opening (325) on the first upper flange plate (321) of the energy-dissipating beam segment (32) in the second direction, or the size of the opening (325) on the first lower flange plate (322) of the energy-dissipating beam segment (32) in the second direction; The dimension of the first upper flange plate (321) or the first lower flange plate (322) of the energy-dissipating beam segment (32) in the vertical direction; The dimension of the first web (323) or the second web (324) of the energy-dissipating beam segment (32) in the second direction; The dimension of the first web (323) or the second web (324) of the energy-dissipating beam segment (32) in the vertical direction; The dimension of the energy-dissipating beam segment (32) in the first direction; The distance between the center of the opening (325) on the first upper flange plate (321) of the energy-dissipating beam segment (32) and the middle part of the energy-dissipating beam segment (32) in the first direction, or the distance between the center of the opening (325) on the first lower flange plate (322) of the energy-dissipating beam segment (32) and the middle part of the energy-dissipating beam segment (32) in the first direction.

6. The box-type eccentrically supported energy-dissipating beam segment according to claim 1, characterized in that, The dimensions of the first upper flange (321) or the first lower flange (322) in the second direction satisfy: ； The dimensions of the opening (325) on the first upper flange plate (321) or the first lower flange plate (322) in the second direction satisfy: ,in, The dimension of the first upper flange plate (321) or the first lower flange plate (322) of the energy-dissipating beam segment (32) in the second direction; The size of the opening (325) on the first upper flange plate (321) of the energy-dissipating beam segment (32) in the second direction, or the size of the opening (325) on the first lower flange plate (322) of the energy-dissipating beam segment (32) in the second direction; The dimension of the first upper flange plate (321) or the first lower flange plate (322) of the energy-dissipating beam segment (32) in the vertical direction; The dimension of the first web (323) or the second web (324) of the energy-dissipating beam segment (32) in the second direction; The dimension of the first web (323) or the second web (324) of the energy-dissipating beam segment (32) in the vertical direction; The dimension of the energy-dissipating beam segment (32) in the first direction; The distance between the center of the opening (325) on the first upper flange plate (321) of the energy-dissipating beam segment (32) and the middle part of the energy-dissipating beam segment (32) in the first direction, or the distance between the center of the opening (325) on the first lower flange plate (322) of the energy-dissipating beam segment (32) and the middle part of the energy-dissipating beam segment (32) in the first direction.

7. The box-type eccentrically supported energy-dissipating beam segment according to claim 1, characterized in that, The dimensions of the first web (323) or the second web (324) in the vertical direction satisfy the following: ； The dimensions of the opening (325) on the first upper flange plate (321) or the first lower flange plate (322) in the second direction satisfy: ;in, The dimension of the first upper flange plate (321) or the first lower flange plate (322) of the energy-dissipating beam segment (32) in the second direction; The size of the opening (325) on the first upper flange plate (321) of the energy-dissipating beam segment (32) in the second direction, or the size of the opening (325) on the first lower flange plate (322) of the energy-dissipating beam segment (32) in the second direction; The dimension of the first upper flange plate (321) or the first lower flange plate (322) of the energy-dissipating beam segment (32) in the vertical direction; The dimension of the first web (323) or the second web (324) of the energy-dissipating beam segment (32) in the second direction; The dimension of the first web (323) or the second web (324) of the energy-dissipating beam segment (32) in the vertical direction; The dimension of the energy-dissipating beam segment (32) in the first direction; The distance between the center of the opening (325) on the first upper flange plate (321) of the energy-dissipating beam segment (32) and the middle part of the energy-dissipating beam segment (32) in the first direction, or the distance between the center of the opening (325) on the first lower flange plate (322) of the energy-dissipating beam segment (32) and the middle part of the energy-dissipating beam segment (32) in the first direction.

8. The box-type eccentrically supported energy-dissipating beam segment according to claim 1, characterized in that, The dimensions of the first web (323) or the second web (324) in the vertical direction satisfy the following: ； The dimensions of the opening (325) on the first upper flange plate (321) or the first lower flange plate (322) in the second direction satisfy: ;in, The dimension of the first upper flange plate (321) or the first lower flange plate (322) of the energy-dissipating beam segment (32) in the second direction; The size of the opening (325) on the first upper flange plate (321) of the energy-dissipating beam segment (32) in the second direction, or the size of the opening (325) on the first lower flange plate (322) of the energy-dissipating beam segment (32) in the second direction; The dimension of the first upper flange plate (321) or the first lower flange plate (322) of the energy-dissipating beam segment (32) in the vertical direction; The dimension of the first web (323) or the second web (324) of the energy-dissipating beam segment (32) in the second direction; The dimension of the first web (323) or the second web (324) of the energy-dissipating beam segment (32) in the vertical direction; The dimension of the energy-dissipating beam segment (32) in the first direction; The distance between the center of the opening (325) on the first upper flange plate (321) of the energy-dissipating beam segment (32) and the middle part of the energy-dissipating beam segment (32) in the first direction, or the distance between the center of the opening (325) on the first lower flange plate (322) of the energy-dissipating beam segment (32) and the middle part of the energy-dissipating beam segment (32) in the first direction.

9. The box-type eccentrically supported energy-dissipating beam segment according to claim 1, characterized in that, The first transition segment (31) or the second transition segment (33) satisfies: ； ； ； ； ； ； ;in, The design values ​​of the resistance to bending moment, shear force, and axial force of the first transition section (31) or the second transition section (33); When the load is not under seismic conditions, the combined values ​​of bending moment, shear force, and axial force of the first transition section (31) or the second transition section (33) under the basic load combination effect; Under seismic conditions, the combined values ​​of bending moment, shear force, and axial force of the basic load combination effect of the first transition section (31) or the second transition section (33); The fully plastic bending bearing capacity of the energy-dissipating beam segment (32); The fully plastic shear bearing capacity of the energy-dissipating beam segment (32); Under seismic conditions, the internal force combination value of the bending moment of the basic load combination effect of the energy dissipation beam segment (32); Under seismic conditions, the internal force combination value of the shear force of the energy dissipation beam segment (32) under the basic load combination effect; This is the seismic adjustment coefficient for bearing capacity; It is a constant amplification factor, greater than 1.

0.

10. An eccentric support member, characterized in that, It includes a first non-energy-dissipating beam segment (1), a box-shaped eccentrically supported energy-dissipating beam segment (3), and a second non-energy-dissipating beam segment (2) arranged sequentially along the first direction. The box-shaped eccentrically supported energy-dissipating beam segment (3) is the box-shaped eccentrically supported energy-dissipating beam segment (3) as described in any one of claims 1-9. One end of the first non-energy-dissipating beam segment (1) is connected to one end of the box-shaped eccentrically supported energy-dissipating beam segment (3), and one end of the second non-energy-dissipating beam segment (2) is connected to the other end of the box-shaped eccentrically supported energy-dissipating beam segment (3).

11. The eccentric support member according to claim 10, characterized in that, The first non-energy-dissipating beam segment (1) or the second non-energy-dissipating beam segment (2) satisfies: ； ； ； ； ； ； ;in, The design values ​​of the bending moment, shear force, and axial force of the first non-energy-dissipating beam segment (1) or the second non-energy-dissipating beam segment (2); Under non-earthquake conditions, the combined values ​​of bending moment, shear force, and axial force of the first non-energy-dissipating beam segment (1) or the second non-energy-dissipating beam segment (2) under load and basic combination effect. Under seismic conditions, the combined values ​​of internal forces, including bending moment, shear force, and axial force, under the load and basic combination effect of the first non-energy-dissipating beam segment (1) or the second non-energy-dissipating beam segment (2); The fully plastic bending bearing capacity of the energy-dissipating beam segment (32); The fully plastic shear bearing capacity of the energy-dissipating beam segment (32); Under seismic conditions, the internal force combination value of the bending moment of the basic load combination effect of the energy dissipation beam segment (32); Under seismic conditions, the internal force combination value of the shear force of the energy dissipation beam segment (32) under the basic load combination effect; This is the seismic adjustment coefficient for bearing capacity; It is a constant amplification factor, greater than 1.

0.

12. The eccentric support member according to claim 10, characterized in that, It also includes a first support segment (4) and a second support segment (5). One end of the first support segment (4) is connected to the bottom of the first non-energy-dissipating beam segment (1) near the end of the box-shaped eccentric support energy-dissipating beam segment (3). The other end of the first support segment (4) extends downward and is inclined away from the box-shaped eccentric support energy-dissipating beam segment (3). One end of the second support segment (5) is connected to the bottom surface of the second non-energy-dissipating beam segment (2) near the end of the box-shaped eccentric support energy-dissipating beam segment (3). The other end of the second support segment (5) extends downward and is inclined away from the box-shaped eccentric support energy-dissipating beam segment (3).

13. The eccentric support member according to claim 12, characterized in that, The first support segment (4) or the second support segment (5) satisfies: ； ； ； ； ； ； ;in, The design values ​​of the bending moment, shear force, and axial force of the first support segment (4) or the second support segment (5); Under non-earthquake conditions, the combined values ​​of bending moment, shear force, and axial force of the basic load combination effect of the first support segment (4) or the second support segment (5); Under seismic conditions, the combined values ​​of bending moment, shear force, and axial force of the basic load combination effect of the first support segment (4) or the second support segment (5); The fully plastic bending bearing capacity of the energy-dissipating beam segment (32); The fully plastic shear bearing capacity of the energy-dissipating beam segment (32); Under seismic conditions, the internal force combination value of the bending moment of the basic load combination effect of the energy dissipation beam segment (32); Under seismic conditions, the internal force combination value of the shear force of the energy dissipation beam segment (32) under the basic load combination effect; This is the seismic adjustment coefficient for bearing capacity; It is a constant amplification factor, greater than 1.0.

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