Building sandwich structure
By introducing a torsion section into the building's mezzanine structure to achieve flexible connection, the problem of excessive lateral stiffness caused by rigid connection in the existing technology is solved, thereby improving the building's energy dissipation and overall stability under lateral loads.
Patent Information
- Application Number
- CN202520248178.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-02-17
AI Technical Summary
The rigid connection between floors in existing building mezzanine structures results in an excessively high lateral stiffness ratio, which affects the building's energy dissipation capacity and overall stability under lateral loads such as earthquakes and wind loads.
By introducing a torsion section between the structural beam and the sandwich panel, and using a flexible connection method, the lateral stiffness ratio is reduced, thereby improving energy dissipation and overall stability.
By using flexible connection methods, the lateral stiffness ratio is effectively reduced, thereby improving the building's energy dissipation capacity and overall stability under lateral loads.
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Figure CN223880503U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to building engineering technical field, in particular to a building sandwich structure. BACKGROUND
[0002] In multilayer and high -rise building design, in order to meet the space increase or specific function demand, usually add the equipment sandwich of height not more than 2.2 meters between floors. The sandwich not only provides space for mechanical and electrical equipment arrangement, can also improve the utilization of the whole building, but when the sandwich is set in the first two floors or its area is more than 30% of the floor, the proportion control of the overall stiffness of the floor becomes very complex, and fine calculation and optimization design are often needed.
[0003] In the prior art, the sandwich structure generally adopts the form of hanging beam or ordinary beam plate, and rigid connection is adopted between the sandwich structure and the main structure. Although this connection mode can improve the initial stiffness, it is easy to make the lateral stiffness ratio of the whole building too large under the action of lateral load such as earthquake and wind load, and the energy dissipation capacity of the building is weak, which is not conducive to the overall stability and use safety. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a building sandwich structure, which realizes flexible connection between the sandwich plate and the structure beam by arranging a torsion part between the structure beam and the sandwich plate, thereby reducing the problem of excessive lateral stiffness ratio caused by the traditional rigid connection mode and improving the energy dissipation capacity and overall stability of the building under the action of lateral load such as earthquake and wind load.
[0005] In order to achieve the above-mentioned purpose, the utility model provides a building sandwich structure, which comprises a structure beam and a shear wall, the structure beam extends along the horizontal direction, the shear wall extends along the vertical direction, the upper end of the shear wall is connected with the structure beam, and the building sandwich structure comprises:
[0006] A hanging column, which comprises a first steel reinforcement cage, the first steel reinforcement cage comprises a first connecting part, a torsion part and a second connecting part arranged in sequence from top to bottom, and the upper end of the first connecting part is connected with the structure beam;
[0007] A sandwich plate, which extends along the horizontal direction, the lower end of the second connecting part is connected with the sandwich plate, and the end of the sandwich plate in the horizontal direction is connected with the shear wall.
[0008] Further, the first connecting part comprises a plurality of first connecting segments, the first connecting segments extend along the up-down direction, upper ends of the first connecting segments are inserted into the structural beam, the second connecting part comprises a plurality of second connecting segments, the second connecting segments extend along the up-down direction, lower ends of the second connecting segments are inserted into the sandwich panel, the first connecting segments and the second connecting segments are of the same number, the first connecting segments and the second connecting segments correspond to each other, the torsion part comprises a plurality of first bending segments.
[0009] When viewed along the up-down direction, the plurality of first connecting segments are arranged in a regular polygon shape, each of the first connecting segments is located at each vertex of the regular polygon, the plurality of second connecting segments are arranged in a regular polygon shape, the second connecting segments are located at each vertex of the regular polygon, a center point of the regular polygon where the plurality of first connecting segments are located coincides with a center point of the regular polygon where the plurality of second connecting segments are located, a line connecting the first connecting segment and the corresponding second connecting segment passes through the center point of the regular polygon, and two ends of the first bending segment are connected to the lower end of the first connecting segment and the upper end of the corresponding second connecting segment respectively.
[0010] Further, each of the first bending segments is twisted on a line connecting the center point of the regular polygon where the plurality of first connecting segments are located and the center point of the regular polygon where the plurality of second connecting segments are located.
[0011] Further, the upper end of the first connecting segment is further provided with a first embedding segment, the first embedding segment extends along the horizontal direction.
[0012] Further, the second connecting part further comprises a plurality of first stirrups, the plurality of first stirrups are arranged at intervals along the up-down direction, and the first stirrups are arranged around the outer periphery of the plurality of second connecting segments.
[0013] Further, the hanging column further comprises a second steel reinforcement cage, the second steel reinforcement cage comprises a plurality of third connecting segments and a plurality of second stirrups, the third connecting segments extend along the up-down direction, the third connecting segments and the second connecting segments are of the same number, the plurality of third connecting segments are arranged one by one on the inner side of the plurality of second connecting segments, upper ends of the third connecting segments are flush with upper ends of the first bending segments, the plurality of second stirrups are arranged at intervals along the up-down direction, and the second stirrups are arranged around the outer periphery of the plurality of third connecting segments.
[0014] Further, the second steel reinforcement cage further comprises a fourth connecting segment, the fourth connecting segment extends along the up-down direction, and the fourth connecting segment is welded to each of the second stirrups.
[0015] Further, the sandwich plate comprises a structural rib group, the structural rib group comprises two structural rib strips, the structural rib strip comprises a fifth connecting section, a second bending section and a sixth connecting section, the fifth connecting section and the sixth connecting section extend along a first direction in a horizontal direction, the fifth connecting section and the sixth connecting section are parallel to each other, one end of the fifth connecting section close to the shear wall is inserted into the shear wall, the two ends of the second bending section are connected with the end of the fifth connecting section and the end of the sixth connecting section respectively, the two structural rib strips are symmetrically arranged, the symmetry axis of the two structural rib strips extends along the first direction in the horizontal direction, the second bending sections of the two structural rib strips are staggered with each other, and the lower end of the second connecting section is connected with the sixth connecting section.
[0016] Further, an end of the fifth connecting section inserted into the shear wall is provided with a second embedding section, and the second embedding section extends along an up-down direction.
[0017] Further, the sandwich plate comprises a plurality of structural rib groups, and the plurality of structural rib groups are arranged at intervals along a second direction in the horizontal direction and orthogonal to the first direction.
[0018] Compared with the prior art, the building sandwich structure has the beneficial effects that: the first steel cage arranged in the hanging column is sequentially provided with a first connecting part, a torsion part and a second connecting part, and the torsion part is arranged between the first connecting part and the second connecting part. By introducing the torsion part between the structural beam and the sandwich plate, flexible connection between the sandwich and the main structure is realized, the problem that the overall lateral stiffness of the building is too large due to traditional rigid connection is effectively reduced, the building can better realize energy dissipation under the action of lateral loads such as earthquakes and wind loads, and the overall stability and safety are improved. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 is a schematic diagram of the overall structure of the building and the building sandwich structure of the embodiment of the utility model;
[0020] Figure 2 is a structure perspective view of the structural beam, the hanging column and the sandwich plate of the building sandwich structure of the embodiment of the utility model;
[0021] Figure 3 is Figure 2 a sectional view of A-A;
[0022] Figure 4 is a structure perspective view of the sandwich plate and the shear wall of the building sandwich structure of the embodiment of the utility model;
[0023] In the figure, 1, structural beam;
[0024] 2, shear wall;
[0025] 3, the hanging column;
[0026] 31, the first reinforcement cage; 311, the first connecting part; 3111, the first connecting section; 31111, the first embedding section; 312, the torsion part; 3121, the first bending section; 313, the second connecting part; 3131, the second connecting section; 3132, the first stirrup;
[0027] 32, the second reinforcement cage; 321, the third connecting section; 322, the second stirrup; 323, the fourth connecting section;
[0028] 4, the sandwich plate; 41, the structural reinforcement group; 411, the structural reinforcement bar; 4111, the fifth connecting section; 41111, the second embedding section; 4112, the second bending section; 4113, the sixth connecting section. DETAILED DESCRIPTION
[0029] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.
[0030] In the description of the present application, the terms "upper", "lower", "left", "right", "front", "back", "inner", "outer", "transverse", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not used to limit the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation of the present application. For ordinary skilled persons in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances.
[0031] In the description of the present application, the terms "provided with", "provided", "connected", "placed" should be understood broadly, for example, it can be fixedly connected, detachably connected, or integrally structured; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication between two devices, elements or components. For ordinary skilled persons in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.
[0032] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.
[0033] The technical scheme of the utility model will be further explained in connection with the embodiments and drawings.
[0034] As Figures 1-4 shown, the utility model discloses a kind of building sandwich structures, building includes structural beam 1 and shear wall 2, structural beam 1 extends along horizontal direction, shear wall 2 extends along up-down direction, the upper end of shear wall 2 is connected with structural beam 1, and building sandwich structure includes:
[0035] suspension column 3, suspension column 3 includes first reinforcement cage 31, first reinforcement cage 31 includes first connecting portion 311, torsion portion 312, second connecting portion 313 in order from top to bottom, and the upper end of first connecting portion 311 is connected with structural beam 1;
[0036] sandwich plate 4, sandwich plate 4 extends along horizontal direction, and the lower end of second connecting portion 313 is connected with sandwich plate 4, and the end of sandwich plate 4 in horizontal direction is connected with shear wall 2.
[0037] Based on the above technical scheme, first reinforcement cage 31 arranged in suspension column 3 has first connecting portion 311, torsion portion 312 and second connecting portion 313 in order, and torsion portion 312 is arranged between first connecting portion 311 and second connecting portion 313. By introducing torsion portion 312 between structural beam 1 and sandwich plate 4, flexible connection between sandwich and main structure is realized, effectively reduce the problem that overall building lateral stiffness is too large due to traditional rigid connection, building can better realize energy dissipation under the action of lateral load such as earthquake, wind load, improve overall stability and safety.
[0038] Preferably, first connecting portion 311 includes a plurality of first connecting segments 3111, first connecting segment 3111 extends along up-down direction, and the upper end of first connecting segment 3111 is inserted into structural beam 1, second connecting portion 313 includes a plurality of second connecting segments 3131, second connecting segment 3131 extends along up-down direction, and the lower end of second connecting segment 3131 is inserted into sandwich plate 4, the number of first connecting segment 3111 is same with second connecting segment 3131, first connecting segment 3111 and second connecting segment 3131 correspond one by one, and torsion portion 312 includes a plurality of first bending segments 3121.
[0039] In the up-down direction, the plurality of first connecting segments 3111 are arranged in a regular polygon shape, each first connecting segment 3111 is located at each vertex of the regular polygon, the plurality of second connecting segments 3131 are arranged in a regular polygon shape, and the second connecting segments 3131 are located at each vertex of the regular polygon, the center points of the regular polygons where the plurality of first connecting segments 3111 are located coincide with the center points of the regular polygons where the plurality of second connecting segments 3131 are located, the line connecting the first connecting segment 3111 and the corresponding second connecting segment 3131 passes through the center point of the regular polygon, and the two ends of the first bending segment 3121 are connected to the lower end of the first connecting segment 3111 and the upper end of the corresponding second connecting segment 3131, respectively.
[0040] The first connecting portion 311 and the second connecting portion 313 are respectively composed of a plurality of first connecting segments 3111 and a plurality of second connecting segments 3131 extending in the up-down direction, and the plurality of first connecting segments 3111 and the plurality of second connecting segments 3131 are respectively arranged in a regular polygon shape, and the line connecting the centers of the two regular polygons is parallel to the up-down direction. The line connecting each pair of first connecting segment 3111 and corresponding second connecting segment 3131 passes through the center of the regular polygon. The symmetrical arrangement ensures that the load borne by the hanger column 3 can be uniformly transmitted in all directions, reduces local stress concentration, optimizes the stress state of the hanger column 3, and thus improves the stability and safety of the hanger column 3; the torsion portion 312 includes a plurality of first bending segments 3121, the two ends of which are respectively connected to the lower end of the first connecting segment 3111 and the upper end of the corresponding second connecting segment 3131. By providing the torsion portion 312, flexible connection is achieved between the first connecting portion 311 and the second connecting portion 313, reducing the problem of excessive lateral stiffness caused by traditional rigid connection. When subjected to lateral loads such as earthquakes and wind loads, the first bending segment 3121 allows a certain degree of relative rotation and deformation, thereby effectively improving the energy dissipation capacity and seismic performance of the structure.
[0041] More preferably, each first bending segment 3121 is twisted on the line connecting the center points of the regular polygons where the plurality of first connecting segments 3111 are located and the regular polygons where the plurality of second connecting segments 3131 are located.
[0042] Each first bending segment 3121 is twisted along the center line of the regular polygon, which can produce coordinated rotation and deformation along the center line, thereby optimizing the flexible connection effect between the structural beam 1 and the sandwich panel 4, effectively dispersing and dissipating external energy, and the load can be more uniformly transmitted between the first connecting segment 3111 and the second connecting segment 3131, reducing local stress concentration and improving overall stress performance and structural stability.
[0043] More preferably, the upper end of the first connecting segment 3111 is further provided with a first embedded segment 31111, which extends in the horizontal direction.
[0044] The first embedded section 31111 extends in the horizontal direction, so that it forms a larger contact and anchoring range with the structural beam 1, avoids local stress concentration caused by relying on vertical insertion alone, and thus improves the connection strength between the first connecting section 3111 and the structural beam 1.
[0045] More preferably, the second connecting part 313 further comprises a plurality of first stirrups 3132, which are arranged in the up-down direction and are arranged around the outer periphery of the plurality of second connecting sections 3131.
[0046] The first stirrups 3132 form a continuous constraint around the outer periphery of the plurality of second connecting sections 3131, effectively limiting the lateral deformation and local buckling of the second connecting sections 3131 under stress, improving their carrying capacity and shear performance, and thus enhancing the stability of the overall structure.
[0047] More preferably, the hanging column 3 further comprises a second steel cage 32, which comprises a plurality of third connecting sections 321 and a plurality of second stirrups 322, the third connecting sections 321 extend in the up-down direction, the number of third connecting sections 321 is the same as that of the second connecting sections 3131, the plurality of third connecting sections 321 are arranged one by one on the inner side of the plurality of second connecting sections 3131, the upper end of the third connecting section 321 is flush with the upper end of the first bent section 3121, and the plurality of second stirrups 322 are arranged in the up-down direction and are arranged around the outer periphery of the plurality of third connecting sections 321.
[0048] The plurality of third connecting sections 321 extend in the up-down direction, the number of third connecting sections 321 is the same as that of the second connecting sections 3131, and the plurality of third connecting sections 321 are arranged one by one on the inner side of the plurality of second connecting sections 3131, and the upper end of the third connecting section 321 is flush with the upper end of the first bent section 3121, and the plurality of second stirrups 322 are arranged in the up-down direction and are arranged around the outer periphery of the plurality of third connecting sections 321. The third connecting sections 321 and the second stirrups 322 in the second steel cage 32 form a continuous and tight constraint, which significantly improves the overall stiffness and shear carrying capacity of the hanging column 3, prevents local buckling, and thus enhances the stress stability of the entire hanging column 3; the third connecting sections 321 are arranged one by one on the inner side of the second connecting sections 3131, which can ensure more uniform load transmission between the second connecting sections 3131 and the third connecting sections 321, and form a good stress connection.
[0049] More preferably, the second steel cage 32 further comprises a fourth connecting section 323, which extends in the up-down direction, and the fourth connecting section 323 is welded to each second stirrup 322.
[0050] The welding connection ensures that the fourth connecting section 323 and each second stirrup 322 form a continuous and firm combination, effectively improves the overall synergy between the components in the second reinforcement cage 32, thereby enhancing the overall stress stiffness and stability of the hoisting column 3; the fourth connecting section 323 forms a continuous load transmission path in the second reinforcement cage 32, which helps to uniformly disperse local stress, reduce the risk of local damage caused by stress concentration, and improve the crack resistance and fatigue resistance of the overall component.
[0051] More preferably, the sandwich plate 4 comprises a structural rib group 41, the structural rib group 41 comprises two structural rib strips 411, the structural rib strip 411 comprises a fifth connecting section 4111, a second bending section 4112 and a sixth connecting section 4113, the fifth connecting section 4111 and the sixth connecting section 4113 both extend along a first direction in the horizontal direction, the fifth connecting section 4111 and the sixth connecting section 4113 are parallel to each other, one end of the fifth connecting section 4111 close to the shear wall 2 is inserted into the shear wall 2, the two ends of the second bending section 4112 are connected to the end of the fifth connecting section 4111 and the end of the sixth connecting section 4113 respectively, the two structural rib strips 411 are symmetrically arranged, the symmetry axis of the two structural rib strips 411 extends along the first direction in the horizontal direction, the second bending sections 4112 of the two structural rib strips 411 are staggered with each other, and the lower end of the second connecting section 3131 is connected to the sixth connecting section 4113.
[0052] The structural rib group 41 is composed of two structural rib strips 411, and each structural rib strip 411 comprises a fourth connecting section 323, a second bending section 4112 and a sixth connecting section 4113; wherein the two ends of the second bending section 4112 are connected to the fourth connecting section 323 and the sixth connecting section 4113 respectively, and the two structural rib strips 411 are symmetrically arranged and their second bending sections 4112 are staggered with each other. This symmetrical and staggered arrangement forms a balanced stress network, which can effectively disperse local stress, reduce the risk of stress concentration, and thus significantly improve the bending resistance, shear resistance and crack resistance of the sandwich plate 4.
[0053] More preferably, the fifth connecting section 4111 is inserted into the end of the shear wall 2, and the end of the fifth connecting section 4111 is provided with a second embedding section 41111, the second embedding section 41111 extends along the up-down direction.
[0054] The extension of the second embedding section 41111 increases the embedding depth of the fourth connecting section 323 in the shear wall 2, expands the stress area, thereby improving the pull-out resistance and shear carrying capacity of the connection, and ensuring the firm combination between the sandwich plate 4 and the shear wall 2.
[0055] More preferably, the sandwich plate 4 comprises a plurality of structural rib groups 41, and the plurality of structural rib groups 41 are arranged at intervals along a second direction in the horizontal direction which is orthogonal to the first direction.
[0056] The plurality of structural rib groups 41 are arranged at intervals in a second direction in the horizontal direction, can form a bidirectional stress network in the sandwich plate 4, effectively realize balanced transmission of load in the horizontal direction, and significantly improve the bending resistance, shear resistance and crack resistance of the sandwich plate 4.
[0057] To sum up, the embodiment of the utility model provides a kind of building sandwich structure, first reinforcement cage 31 being equipped in its hanging column 3 is sequentially arranged with first connecting part 311, torsion portion 312 and second connecting part 313, and torsion portion 312 is arranged between first connecting part 311 and second connecting part 313.By introducing torsion portion 312 between structural beam 1 and sandwich plate 4, flexible connection between sandwich and main structure is realized, effectively reduce the problem that overall building lateral stiffness is too large due to traditional rigid connection, building can better realize energy dissipation under the action of lateral load such as earthquake, wind load, improve overall stability and safety.
[0058] The above is only preferred embodiment of the utility model, it should be pointed out, for the ordinary skill of the prior art, on the premise of not departing from the technical principle of the utility model, can make a number of improvements and substitutions, these improvements and substitutions also should be regarded as the protection range of the utility model.
Claims
1. A mezzanine building structure, the building comprising a structural beam (1) and a shear wall (2), the structural beam (1) extending horizontally, the shear wall (2) extending vertically, the upper end of the shear wall (2) being connected to the structural beam (1), characterized in that, include: The hanging column (3) includes a first steel cage (31), which includes a first connecting part (311), a torsion part (312), and a second connecting part (313) arranged from top to bottom. The upper end of the first connecting part (311) is connected to the structural beam (1). The sandwich panel (4) extends horizontally, the lower end of the second connecting part (313) is connected to the sandwich panel (4), and the end of the sandwich panel (4) in the horizontal direction is connected to the shear wall (2).
2. The building mezzanine structure according to claim 1, characterized in that, The first connecting part (311) includes a plurality of first connecting segments (3111), the first connecting segments (3111) extend in the vertical direction, and the upper end of the first connecting segment (3111) is inserted into the structural beam (1). The second connecting part (313) includes a plurality of second connecting segments (3131), the second connecting segments (3131) extend in the vertical direction, and the lower end of the second connecting segments (3131) is inserted into the sandwich panel (4). The number of first connecting segments (3111) and second connecting segments (3131) is the same, and the first connecting segments (3111) and second connecting segments (3131) correspond one-to-one. The torsion part (312) includes a plurality of first bending segments (3121). Viewed from above, the first connecting segments (3111) are arranged in a regular polygonal shape, with each first connecting segment (3111) located at a vertex of the regular polygon. The second connecting segments (3131) are also arranged in a regular polygonal shape, with each second connecting segment (3131) located at a vertex of the regular polygon. The center point of the regular polygon containing the first connecting segments (3111) coincides with the center point of the regular polygon containing the second connecting segments (3131). The line connecting the first connecting segment (3111) and the corresponding second connecting segment (3131) passes through the center point of the regular polygon. The two ends of the first bending segment (3121) are connected to the lower end of the first connecting segment (3111) and the upper end of the corresponding second connecting segment (3131), respectively.
3. The building mezzanine structure according to claim 2, characterized in that, Each of the first bending segments (3121) is twisted to the line connecting the center point of the regular polygon where the first connecting segment (3111) is located and the center point of the regular polygon where the multiple second connecting segments (3131) are located.
4. The building mezzanine structure according to claim 2, characterized in that, The upper end of the first connecting section (3111) is also provided with a first embedment section (31111), which extends in the horizontal direction.
5. The building mezzanine structure according to claim 2, characterized in that, The second connecting part (313) further includes a plurality of first stirrups (3132), which are spaced apart in the vertical direction and are wrapped around the outer periphery of the plurality of second connecting segments (3131).
6. The building mezzanine structure according to claim 2, characterized in that, The hanging column (3) also includes a second steel cage (32), which includes a plurality of third connecting sections (321) and a plurality of second stirrups (322). The third connecting sections (321) extend in the vertical direction and the number of the third connecting sections (321) is the same as that of the second connecting sections (3131). The plurality of third connecting sections (321) are arranged one-to-one on the inner side of the plurality of second connecting sections (3131). The upper end of the third connecting section (321) is flush with the upper end of the first bent section (3121). The plurality of second stirrups (322) are spaced apart in the vertical direction and are wrapped around the outer periphery of the plurality of third connecting sections (321).
7. The building mezzanine structure according to claim 6, characterized in that, The second steel cage (32) also includes a fourth connecting section (323), which extends in the vertical direction and is welded to each of the second stirrups (322).
8. The building mezzanine structure according to claim 2, characterized in that, The sandwich panel (4) includes a structural reinforcement group (41), which includes two structural reinforcement bars (411). Each structural reinforcement bar (411) includes a fifth connecting segment (4111), a second bending segment (4112), and a sixth connecting segment (4113). Both the fifth connecting segment (4111) and the sixth connecting segment (4113) extend along a first direction in the horizontal direction. The fifth connecting segment (4111) and the sixth connecting segment (4113) are parallel to each other. The fifth connecting segment (4111) is close to the shear wall. One end of (2) is inserted into the shear wall (2), and the two ends of the second bent section (4112) are respectively connected to the end of the fifth connecting section (4111) and the end of the sixth connecting section (4113). The two structural ribs (411) are symmetrically arranged, and the axis of symmetry of the two structural ribs (411) extends along the first direction in the horizontal direction. The second bent sections (4112) of the two structural ribs (411) are intersected. The lower end of the second connecting section (3131) is connected to the sixth connecting section (4113).
9. The building mezzanine structure according to claim 8, characterized in that, The fifth connecting section (4111) is inserted into the end of the shear wall (2) and is provided with a second embedded section (41111), which extends in the vertical direction.
10. The building mezzanine structure according to claim 8, characterized in that, The sandwich panel (4) includes a plurality of structural rib groups (41), which are spaced apart along a second direction orthogonal to the first direction in the horizontal direction.