Hot-rolled H-shaped steel buckling restrained brace

Abstract

The utility model relates to the technical field of anti-seismic building structures, in particular to a hot-rolled H-shaped steel buckling restrained brace which comprises a sleeve, an inner core is arranged in the sleeve in a matched mode, installation components are arranged at the two ends of the inner core, the installation components are sleeved with end sealing plates, the end sealing plates are used for preventing filler in the sleeve from leaking, and the filler is arranged between the sleeve and the inner core. The inner core is composed of the H-shaped steel and the auxiliary yield plate which are matched with each other, webs of the H-shaped steel and the auxiliary yield plate are corrugated, and the anti-seismic effect of the constraint support is improved; the supporting performance is high, the anti-seismic performance is high, and the structural stability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of earthquake-resistant building structures, in particular to a hot-rolled H-shaped steel buckling restraint brace. Background Art

[0002] Buckling-restrained braces are advanced structural components used to improve the seismic performance of buildings. They consist of a core material, a sleeve that restrains the core's buckling, and unbonded and infill materials between the core and sleeve. These braces act as a "fuse" within the structure, dissipating energy through yielding and deformation under intense external forces, such as earthquakes, thereby protecting the main structure from damage.

[0003] The existing buckling restrained support includes a casing and an inner core, the inner core is located in the casing, cement is poured into the casing to fill the gap between the inner core and the casing, and after the filling is completed, a head plate is used to seal the two ends of the casing. During installation, the mounting ends of the inner core are connected to the mounting base for installation; the above technology also has the following shortcomings: the inner core of the existing buckling restrained support is usually a vertical inner core. When it is subjected to compressive buckling deformation, the inner core will deform, but the deformation point usually does not change, resulting in local buckling, reducing the support performance, and affecting the seismic performance and structural stability of the buckling restrained support.

[0004] Therefore, the present application provides a hot-rolled H-shaped steel buckling restraint support to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to provide a hot-rolled H-shaped steel buckling restraint support to solve the problems of low support performance, weak seismic performance and poor structural stability of the existing support.

[0006] In order to solve the above technical problems, the utility model provides a hot-rolled H-shaped steel buckling restraint support, including a sleeve, an inner core is adapted to be arranged in the sleeve, mounting components are arranged at both ends of the inner core, the mounting components are fitted with a head plate, the head plate is used to prevent the leakage of the filler in the sleeve, and the filler is arranged between the sleeve and the inner core; the inner core is composed of H-shaped steel and secondary yield plates that cooperate with each other, and the web and secondary yield plates of the H-shaped steel are both corrugated, which improves the seismic effect of the restraint support.

[0007] A further improvement of the technical solution of the present invention is that a gap is provided between the web and the secondary yield plate of the H-shaped steel to provide deformation space when the web and the secondary yield plate of the H-shaped steel are deformed.

[0008] The further improvement of the utility model technical scheme lies in that two groups of connecting assemblies are arranged on the web plate and the auxiliary yield plate of the H-shaped steel, the connecting assembly comprises a groove and a protrusion matched with each other, the opposite surfaces of the H-shaped steel web plate and the auxiliary yield plate at the wave peak are respectively provided with the groove and the protrusion, and the opposite surfaces of the H-shaped steel web plate and the auxiliary yield plate at the wave valley are respectively provided with the protrusion and the groove correspondingly.

[0009] The further improvement of the utility model technical scheme lies in that the extension section is arranged at the two ends of the horizontal plate of the H-shaped steel, and the notch is arranged at the center of the extension section.

[0010] The further improvement of the utility model technical scheme lies in that the H-shaped steel and the auxiliary yield plate are both provided with the non-adhesive layer.

[0011] The further improvement of the utility model technical scheme lies in that the mounting component comprises a first connecting plate and a second connecting plate arranged perpendicularly, the end surface of one side of the second connecting plate is welded with one end surface of the web plate of the H-shaped steel, and the side edge of one side of the second connecting plate is clamped in the notch.

[0012] The further improvement of the utility model technical scheme lies in that the first connecting plate and the second connecting plate are both provided with a plurality of mounting holes.

[0013] The further improvement of the utility model technical scheme lies in that the cross-shaped through hole is arranged on the head plate, the cross-shaped through hole is matched with the first connecting plate and the second connecting plate, the head plate can be slidably matched and mounted on the mounting component, and the outer edge of the head plate is matched with the inner wall of the sleeve.

[0014] The further improvement of the utility model technical scheme lies in that the two lifting rings are arranged on the outer wall of the sleeve body, which are used for lifting the buckling restrained brace to the mounting position of the construction site.

[0015] By adopting the above technical scheme, the utility model has the following beneficial effects:

[0016] 1. The hot-rolled H-shaped steel buckling restrained brace provided by the utility model, the buckling restrained brace is internally fitted with an inner core, the inner core is welded with a mounting component at both ends, the mounting component is used for mounting with an external mounting base, fixing the position of the buckling restrained brace, the mounting component is sleeved with a head plate, the head plate is used for blocking the leakage of the filler in the sleeve, the filler is arranged between the sleeve and the inner core, the filler and the sleeve jointly restrain the inner core and provide lateral stiffness for the inner core, ensuring that the buckling restrained brace can exhibit a more full hysteresis curve than ordinary steel braces under axial tension and compression stress; the inner core is composed of an H-shaped steel and a secondary yield plate that cooperate with each other, the web of the H-shaped steel and the secondary yield plate are both corrugated; the corrugated shape is selected, providing a larger contact surface area under the same volume, so that the material can be more effectively utilized under stress, having better energy dissipation performance, improving the utilization rate of the material, and improving the support performance and structural stability of the buckling restrained brace; and the corrugated inner core can provide better ductility, i.e., still maintaining a certain bearing capacity after exceeding the elastic limit, thereby improving the seismic performance of the buckling restrained brace.

[0017] 2. The hot-rolled H-shaped steel buckling restrained brace provided by the utility model, the buckling restrained brace is internally fitted with an inner core composed of an H-shaped steel and a secondary yield plate that cooperate with each other, compared with a traditional single inner core, the inner core of the utility model will deform when subjected to stress, the H-shaped steel and the secondary yield plate are connected through a connecting assembly, can conduct force through the connecting assembly when the H-shaped steel and the secondary yield plate deform under stress, improving the energy dissipation of the inner core and the support performance and structural stability of the buckling restrained brace.

[0018] 3. The hot-rolled H-shaped steel buckling restrained brace provided by the utility model, the buckling restrained brace is arranged between the web of the H-shaped steel and the secondary yield plate, the web of the H-shaped steel and the secondary yield plate can provide deformation space for the deformation of the inner core when deforming; two sets of connecting assemblies are arranged on the web of the H-shaped steel and the secondary yield plate, the connecting assembly comprises a groove and a protrusion that cooperate with each other, the groove and the protrusion are respectively arranged on the opposite surfaces of the corresponding positions of the web of the H-shaped steel and the secondary yield plate, and the groove and the protrusion at the corresponding positions form a connecting assembly; the connecting assembly is arranged between the web of the H-shaped steel and the secondary yield plate, and the two components combine to provide deformation space for the deformation of the inner core, so that the H-shaped steel and the secondary yield plate conduct force through the connecting assembly when subjected to yield stress, improving the energy dissipation effect of the inner core and the seismic effect of the buckling restrained brace. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the specific embodiments or the prior art. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 It is a structural schematic diagram of a hot-rolled H-shaped steel buckling restrained brace.

[0021] Figure 2 It is a whole schematic diagram of a hot-rolled H-shaped steel buckling restrained brace.

[0022] Figure 3 It is a schematic diagram after the sleeve is filled with the filler.

[0023] Figure 4 It is a structural schematic diagram of the H-shaped steel and the auxiliary yield plate.

[0024] Figure 5 It is a local enlarged structural schematic diagram of one end of the H-shaped steel.

[0025] Figure 6 It is a structural schematic diagram of the inner core.

[0026] Figure 7 It is a structural connection schematic diagram of the connection between the mounting member and the inner core.

[0027] Figure 8 It is a structural schematic diagram of the first connecting plate, the second connecting plate and the head plate.

[0028] The drawings show that: 1, sleeve; 2, inner core; 3, mounting member; 4, head plate; 5, filler; 6, H-shaped steel; 7, auxiliary yield plate; 8, connecting assembly; 9, groove; 10, protrusion; 11, extension section; 12, notch; 13, non-adhesive layer; 14, first connecting plate; 15, second connecting plate; 16, mounting hole; 17, cross-shaped through hole; 18, lifting ring. DETAILED DESCRIPTION

[0029] The technical solutions of the present application will be described below in conjunction with the drawings. Obviously, the described embodiments are some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.

[0030] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and cannot indicate or imply that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the utility model, it needs to explain, unless otherwise expressly provided and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through the intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0032] The utility model will be further explained in combination with specific implementation.

[0033] As Figures 1-8 The utility model provides a kind of hot-rolled H-shaped steel buckling restrained brace as shown in the figure, including sleeve 1, inner core 2 is adaptively arranged in sleeve 1, installation component 3 is arranged at the both ends of inner core 2, installation component 3 is used to install with external mounting base, the position of fixed buckling restrained brace, installation component 3 is sleeved with head plate 4, head plate 4 is used to block the leakage of filler 5 in sleeve 1, filler 5 is arranged between sleeve 1 and inner core 2, preferably, filler 5 is cement;Inner core 2 is composed of mutually matched H-shaped steel 6 and vice yield plate 7, the web of H-shaped steel 6 and vice yield plate 7 are all corrugated, improve the aseismic effect of restraint support;Filler 5 and sleeve 1 jointly restrain inner core 2, provide lateral stiffness to inner core 2, ensure that buckling restrained brace can show more full hysteresis curve than ordinary steel support under axial tension, compression stress state, improve the stability of structure;The shape of corrugated shape is selected, can provide greater contact surface area under the same volume, so that it can be more effectively used when stressed, has better energy dissipation performance, improves the utilization of materials, improves the support performance and structural stability of buckling restrained brace;And corrugated inner core 2 can provide better ductility, i.e. still can maintain certain bearing capacity after exceeding elastic limit, thereby improving the aseismic performance of buckling restrained brace.

[0034] As Figures 4-6As shown, a hot-rolled H-shaped steel buckling restraint support is provided in this embodiment. A gap is set between the web of the H-shaped steel 6 and the secondary yield plate 7 to provide deformation space when the web and the secondary yield plate 7 of the H-shaped steel 6 are deformed; two sets of connecting components 8 are set on the web and the secondary yield plate 7 of the H-shaped steel 6, and the connecting components 8 include grooves 9 and protrusions 10 that cooperate with each other. The opposite surfaces of the web of the H-shaped steel 6 and the secondary yield plate 7 at the peaks are respectively provided with grooves 9 and protrusions 10, and the opposite surfaces of the web of the H-shaped steel 6 and the secondary yield plate 7 at the troughs are respectively provided with grooves 9 and protrusions 10. The protrusions 10 and the grooves 9 are set; the size of the gap is equal to the difference between the depth of the grooves 9 in the connecting component 8 and the height of the protrusions 10, so the gap can be adjusted according to customer needs. The gap between the connecting component 8 and the web and secondary yield plate 7 of the H-shaped steel 6 is set. The combination of the two provides deformation space for the deformation of the inner core 2, so that when the H-shaped steel 6 and the secondary yield plate 7 are subjected to yield stress, the H-shaped steel 6 and the secondary yield plate 7 conduct force through the connecting component 8, thereby improving the energy dissipation effect of the inner core 2 and improving the seismic effect of the buckling restraint support.

[0035] like Figures 1-4 As shown, this embodiment provides a hot-rolled H-shaped steel buckling restraint support, in which a non-adhesive layer 13 is installed on both the H-shaped steel 6 and the secondary yield plate 7; that is, a non-adhesive layer 13 is installed on the H-shaped steel 6 and the secondary yield plate 7; the non-adhesive layer 13 provides a sliding interface, so that the buckling restraint support can have similar mechanical properties under tension and compression; this can avoid the friction between the core unit and the constraint unit after the core unit expands under pressure, resulting in an increase in axial pressure; improve the seismic performance and energy dissipation capacity of the structure, and by allowing the inner core 2 to expand freely under pressure, reduce the friction between the sleeve 1, thereby improving the efficiency and reliability of the entire buckling restraint support.

[0036] like Figures 4-8 As shown, this embodiment provides a hot-rolled H-shaped steel buckling constraint support, wherein an extension section 11 is provided at both ends of the transverse plate of the H-shaped steel 6, and a notch 12 is provided at the center of the extension section 11; the mounting member 3 includes two first connecting plates 14 and a second connecting plate 15 arranged perpendicular to each other, the end face of one side of the second connecting plate 15 is welded to one end face of the web of the H-shaped steel 6, and the edge of one side of the second connecting plate 15 is clamped in the notch 12; a plurality of mounting holes 16 are provided on the first connecting plate 14 and the second connecting plate 15, preferably, the mounting holes 16 on each side of the mounting member 3 are arranged in two rows; the extension section 11 can increase the contact area between the mounting member 3 and the inner core 2, and can increase the stability between the mounting member 3 and the inner core 2 after welding, the edge of one side of the second connecting plate 15 is welded to one end face of the web of the H-shaped steel 6, and the edge of one side of the second connecting plate 15 is clamped in the notch 12, and there is still partial clamping when the mounting member 3 is welded to the inner core 2, thereby enhancing the stability of the overall structure.

[0037] like Figures 1-8As shown, the hot-rolled H-shaped steel buckling restrained brace provided by the embodiment is provided with a cross-shaped through hole 17 on the head plate 4, the cross-shaped through hole 17 is adapted to be sleeved with the first connecting plate 14 and the second connecting plate 15, the head plate 4 can be slidably and adaptively installed on the mounting member 3, and the outer edge of the head plate 4 is attached to the inner wall of the sleeve 1; two lifting rings 18 are arranged on the outer wall of the sleeve 1 body, which are used for hoisting the buckling restrained brace to the installation position of the construction site; the cross-shaped through hole 17 is adaptively installed with the first connecting plate 14 and the second connecting plate 15 in the mounting member 3, the head plate 4 can be slidably sleeved on the mounting member 3, the outer side of the head plate 4 is flush with the outer end surface of one side of the sleeve 1, and the circumferential sidewall of the head plate 4 is attached to the inner wall of the sleeve 1 and fixes the position of the head plate 4 by welding, so as to prevent the filler 5 in the sleeve 1 from leaking; sealing glue is applied to the connection between the head plate 4 and the mounting member 3 to prevent the filler 5 in the sleeve 1 from leaking out of the gap between the head plate 4 and the mounting member 3.

[0038] The manufacturing method and installation of the utility model are as follows:

[0039] According to the selection of the construction site, the sleeve 1, the H-shaped steel 6 and the auxiliary yield plate 7 of the corresponding length are selected, the sleeve 1, the H-shaped steel 6 and the auxiliary yield plate 7 are placed horizontally, appropriate gaps are selected according to the needs, and the connecting assembly 8 is welded on the H-shaped steel 6 and the auxiliary yield plate 7, the H-shaped steel 6 and the auxiliary yield plate 7 are adaptively and nestingly connected through the connecting assembly 8 to form the inner core 2, the web plate of the H-shaped steel 6 is welded with the mounting member 3, after the welding is completed, the inner core 2 is placed in the sleeve 1, the head plate 4 is sleeved on the mounting member 3 at one end of the inner core 2, and the outer side of the head plate 4 is aligned with the end surface of one end of the sleeve 1 after welding, then the gap between the head plate 4 and the mounting member 3 is sealed by applying sealing glue, the buckling restrained brace is placed vertically, one end of the head plate 4 is welded downward, the filler 5 is filled in the gap between the sleeve 1 and the inner core 2, after the filling is completed, the head plate 4 is sleeved on the mounting member 3 at the other end of the inner core 2, and the outer side of the head plate 4 is aligned with the end surface of the other end of the sleeve 1 after welding, then the gap between the head plate 4 and the mounting member 3 is sealed by applying sealing glue, and the overall manufacturing and installation are completed; then it is transported to the construction site, the lifting ring 18 is hoisted by the crane and moved to the specific construction site, and the mounting members 3 at both ends of the buckling restrained brace are installed on the installation base of the construction site through a plurality of bolts.

[0040] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: the technical solutions recorded in the foregoing embodiments can still be modified, or part or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A hot-rolled H-shaped steel buckling-restrained brace, characterized by, The utility model provides a kind of buckling restrained brace, including sleeve (1), inner core (2) is adapted to be arranged in sleeve (1), mounting component (3) is arranged at both ends of inner core (2), mounting component (3) is sleeved and closed head plate (4), closed head plate (4) is used to block the leakage of filler (5) in sleeve (1), filler (5) is arranged between sleeve (1) and inner core (2);Inner core (2) is composed of mutually matched H-shaped steel (6) and auxiliary yield plate (7), the web of H-shaped steel (6) and auxiliary yield plate (7) are all corrugated, improve the anti-seismic effect of restraint support.

2. The hot-rolled H-shaped steel buckling-restrained brace according to claim 1, characterized in that, The gap between the web of H-shaped steel (6) and auxiliary yield plate (7) is arranged, to provide deformation space when the web of H-shaped steel (6) and auxiliary yield plate (7) are deformed.

3. The hot-rolled H-shaped steel buckling-restrained brace according to claim 1, characterized in that, Two groups of connecting assemblies (8) are arranged on the web of H-shaped steel (6) and auxiliary yield plate (7), connecting assembly (8) includes recess (9) and protrusion (10) matched with each other, the opposite surfaces of the crest of the web of H-shaped steel (6) and auxiliary yield plate (7) are respectively provided with recess (9) and protrusion (10), and the opposite surfaces of the trough of the web of H-shaped steel (6) and auxiliary yield plate (7) are respectively provided with protrusion (10) and recess (9) correspondingly.

4. The hot-rolled H-shaped steel buckling-restrained brace according to claim 3, characterized in that, The extension section (11) is arranged at both ends of the web of H-shaped steel (6), and the notch (12) is arranged at the center of the extension section (11).

5. The hot-rolled H-shaped steel buckling-restrained brace according to claim 3, characterized in that, The non-adhesive layer (13) is arranged on the web of H-shaped steel (6) and auxiliary yield plate (7).

6. The hot-rolled H-shaped steel buckling-restrained brace according to claim 4, characterized in that, The mounting component (3) includes two first connecting plates (14) and second connecting plates (15) arranged perpendicularly, the end face of one side of the second connecting plate (15) is welded with the end face of the web of H-shaped steel (6), and the edge of one side of the second connecting plate (15) is clamped in the notch (12).

7. The hot-rolled H-shaped steel buckling-restrained brace according to claim 6, characterized in that, The first connecting plate (14) and the second connecting plate (15) are provided with a plurality of mounting holes (16).

8. The hot-rolled H-shaped steel buckling-restrained brace according to claim 7, characterized in that, The cross-shaped through hole (17) is arranged on the closed head plate (4), the cross-shaped through hole (17) is adapted to sleeve the first connecting plate (14) and the second connecting plate (15), so that the closed head plate (4) can be slidably and adaptively mounted on the mounting component (3), and the outer edge of the closed head plate (4) is attached to the inner wall of the sleeve (1).

9. The hot-rolled H-shaped steel buckling-restrained brace according to claim 1, characterized in that, The two lifting rings (18) are arranged on the outer wall of the sleeve (1), for lifting the buckling restrained brace to the installation site.

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