CN220790165U - Buckling-preventing anti-seismic energy-consuming support for building engineering - Google Patents
Buckling-preventing anti-seismic energy-consuming support for building engineering Download PDFInfo
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- CN220790165U CN220790165U CN202322483069.1U CN202322483069U CN220790165U CN 220790165 U CN220790165 U CN 220790165U CN 202322483069 U CN202322483069 U CN 202322483069U CN 220790165 U CN220790165 U CN 220790165U
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Abstract
The utility model relates to the technical field of damping devices, in particular to an anti-buckling, anti-seismic and energy-consuming support for constructional engineering. The energy dissipation support comprises a support rod piece and two spherical hinge supports, wherein each spherical hinge support comprises a sphere and a spherical shell base, the spheres are rotatably installed on the spherical shell base, through holes for exposing the spheres are formed in the spherical shell base, exposed parts of the two spheres are oppositely arranged and fixedly connected with two ends of the support rod piece respectively, and the two spherical shell bases are fixedly installed on corresponding building structures respectively. Therefore, the spherical hinge support is not subjected to shearing force and bending moment under the action of an earthquake, only the tension and the pressure along the length direction of the support rod piece are provided, the support rod piece is in a single pull rod or single compression rod state, the support rod piece cannot deform or even damage itself due to the fact that the support rod piece is subjected to the bending moment, the spherical hinge support can continuously work under the repeated action state of the earthquake, and the spherical hinge support cannot be sheared and damaged.
Description
Technical Field
The utility model relates to the technical field of damping devices, in particular to an anti-buckling, anti-seismic and energy-consuming support for constructional engineering.
Background
Earthquake is an uncontrollable natural disaster, and damage to a building structure is destructive, so that huge loss is caused to life and property safety.
The buckling-restrained anti-seismic energy-dissipation brace is one of the damping measures widely applied at present, and has the advantages of convenience in design, lower manufacturing cost, convenience in construction, no influence on the use space of the building and the like. The working principle of the buckling-restrained anti-seismic energy dissipation brace is that displacement change between structural members and energy transfer generated by stress transmission are consumed through elastoplastic deformation of materials in the energy dissipation brace rod piece, stable energy dissipation capacity is achieved during pulling and pressing, efficient damping effect is achieved, and the buckling-restrained anti-seismic energy dissipation brace is more in use in high-intensity area buildings or existing building reinforcement and transformation.
The buckling-restrained anti-seismic energy-dissipation supporting structure in the prior art generally comprises a supporting rod piece and two plane hinged supports, wherein two ends of the supporting rod piece are respectively hinged with the two plane hinged supports, the two plane hinged supports are anchored on a building structure through anchor bars, and the structure is shown as a Chinese patent application publication No. CN209799057U discloses a multi-stage energy-dissipation composite buckling-restrained brace. When earthquake motion occurs, the support rod pieces of the energy-consuming support in the prior art can rotate in one-dimensional direction in the earthquake motion, the displacement relation between building structures is adjusted, and stress transmission between structural members in the earthquake process can be well consumed, so that the earthquake-resistant and energy-consuming effects are achieved in a plane.
However, the earthquake action is irregular, the displacement relation and stress transmission relation direction between the components are also in a three-dimensional space state, and the running relation of the plane hinged support in the plane is unfavorable for the earthquake action in the three-dimensional space state. When earthquake action occurs in other directions, the motion path of the energy-consuming support rod piece is not in the same plane with the plane hinged support, the rod piece connecting the two structural members is hinged from two ends to two ends for consolidation, and at the moment, the plane hinged support can be subjected to out-of-plane shearing force and bending moment action. When the earthquake action is stronger, the plane hinged support is easily damaged out of the plane or the support rod piece with excessive deformation of energy consumption is easily damaged, the consumption capacity of the subsequent earthquake energy is lost, even the earthquake resistance and the energy consumption of the whole building structure are adversely affected, and the huge life and property loss caused by the earthquake can not be effectively reduced.
In a three-dimensional state, the failure modes of the anti-seismic energy dissipation support mainly comprise the following three types:
(1) The connection relation between the plane hinge supports and the support rods is converted into consolidation due to the earthquake effect, and the plane hinge supports at the two ends are well anchored, but the energy-consuming support rods are damaged by bending.
(2) The joint of the plane hinge support and the support rod piece is damaged by bending.
(3) The plane hinged support is sheared and damaged, the anchor bars of the plane hinged support are broken, and the plane hinged support is anti-seismic and ineffective.
Therefore, how to avoid the earthquake-resistant failure of the energy-consuming support in the three-dimensional space state is a technical problem to be solved urgently by those skilled in the art.
Disclosure of utility model
The utility model aims to solve the technical problem of providing the buckling-restrained anti-seismic energy-consuming support for the constructional engineering, the spherical hinge support is a universal rotary hinge support, the support rod and the spherical hinge support cannot be fixedly connected, the spherical hinge support is not subjected to shearing force and bending moment under the action of an earthquake, only the tension and the pressure along the length direction of the support rod are applied, at the moment, the support rod is in a single pull rod or single press rod state, the support rod cannot deform or even damage itself due to bearing the bending moment, the spherical hinge support can continuously work under the repeated action state of the earthquake, and the spherical hinge support cannot be sheared and damaged.
According to the technical scheme, the buckling-restrained anti-seismic energy-dissipation support comprises a support rod and two spherical hinge supports, wherein each spherical hinge support comprises a sphere and a spherical shell base, the sphere is rotatably installed on each spherical shell base, through holes for exposing the spheres are formed in the spherical shell base, exposed parts of the two spheres are oppositely arranged and fixedly connected with two ends of the support rod respectively, and the two spherical shell bases are fixedly installed on corresponding building structures respectively.
Further, the spherical shell base comprises an inner side plate and an outer side plate which are fixedly connected, the inner side plate is used for being fixed on a building structure, the sphere is clamped between the inner side plate and the outer side plate, and the through Kong Kaishe is arranged on the side surface of the outer side plate, which is opposite to the inner side plate.
Further, hemispherical notches extending oppositely are respectively arranged on the opposite surfaces of the inner side plate and the outer side plate, and the shape of the hemispherical notches is matched with the outline of the sphere.
Further, an end of the through hole facing away from the inner side plate is provided with an inwardly extending chamfer.
Further, the chamfer extends inwardly to a hemispherical recess of the outer side plate.
Further, the inner side plate is for being integrally disposed deep inside the building structure, and the gap between the inner side plate and the building structure is filled with concrete.
Further, the outer side plate comprises a first outer side plate and a second outer side plate which are butted with each other.
Further, the exposed portion of the sphere is provided with an inwardly extending threaded hole, the support rod comprises a rod body and threaded sections arranged at two ends of the rod body, and the threaded sections are matched with the threaded hole.
Further, the outer diameter of the threaded section is smaller than the outer diameter of the rod body.
Further, the novel building structure is characterized by further comprising a fixed anchor rod, wherein the spherical hinge support is fixedly arranged on the building structure through the fixed anchor rod, an expansion bottom plate is arranged at the end part of the fixed anchor rod, which is opposite to the support rod piece, and the expansion bottom plate is used for being deeply arranged in the building structure.
Compared with the prior art, the utility model has the beneficial effects that:
(1) Through setting up the spherical hinge support, the spherical hinge support is universal rotatory hinge support, can not the rigid coupling between support member and the spherical hinge support, and the spherical hinge support does not receive shear force and moment of flexure under the seismic action, only along support member length direction's pulling force and pressure, support member is in single pull rod or single depression bar state this moment, and support member itself can not take place to warp and even self take place to damage because of bearing the moment of flexure, can keep working under the seismic repeated action state, and the spherical hinge support also can not receive the shear failure.
(2) The hemispherical notch is arranged on the inner side plate and the outer side plate and is matched with the outline of the ball body, so that the contact area between the ball body and the ball shell base can be increased, and the stability is improved.
(3) The through hole is provided with the chamfer that inwards extends in the one end of curb plate dorsad, but increase support member's rotation angle improves the practicality.
(4) The sphere is fixedly connected with the support rod piece through threads, so that the assembly is convenient.
Drawings
Fig. 1 is a schematic structural view of an anti-buckling, anti-seismic and energy-consuming brace for construction engineering according to embodiment 1 of the present utility model.
Fig. 2 is a side view of the spherical shell base of embodiment 1 of the present utility model.
Fig. 3 is a front view of the inner panel of embodiment 1 of the present utility model.
Fig. 4 is a front view of the outer panel of embodiment 1 of the present utility model.
Fig. 5 is a schematic structural view of the first outer panel of embodiment 1 of the present utility model.
Fig. 6 is a schematic structural view of a second exterior plate of embodiment 1 of the present utility model.
In the figure: 1. a spherical hinge support; 11. a spherical shell base; 111. an inner side plate; 112. an outer panel; 113. a first outer side plate; 114. a second outer side plate; 115. hemispherical recesses; 116. a through hole; 117. chamfering; 118. an anchor rod hole; 12. a sphere; 121. a threaded hole; 2. a support rod; 21. a rod body; 22. a threaded section; 3. a bolt; 31. an anchor body; 32. an expansion base plate; 4. building structures; 5. a plane hinge support.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application:
Specific example 1:
Referring to fig. 1 to 6, an anti-buckling anti-seismic energy dissipation brace (hereinafter referred to as energy dissipation brace) for construction engineering according to the present utility model includes a support rod 2 and two spherical hinge supports 1, wherein two spherical shell bases 11 are respectively fixedly mounted on corresponding building structures 4. The ball 12 is rotatably mounted on the ball housing base 11, a through hole 116 for exposing the ball 12 is formed in the ball housing base 11, and an inner hole of the through hole 116 is smaller than the diameter of the ball 12, so that the ball 12 is prevented from falling off. And after the two spherical shell bases 11 are mounted, the through holes 116 of the two spherical shell bases 11 are arranged opposite to each other so that the exposed portions of the two spheres 12 are arranged opposite to each other.
In this embodiment, the outer diameter of the support rod 2 is smaller than the inner diameter of the through hole 116, so that the exposed portions of the two spheres 12 are respectively and fixedly connected with two ends of the support rod 2, and the support rod 2 can rotate in three-dimensional space when the displacement relationship and the stress transmission relationship are in a three-dimensional space state. Therefore, during earthquake motions, through the spherical hinge support 1 which is a universal rotary hinge support, the support rod 2 and the spherical hinge support 1 cannot be fixedly connected, under the action of an earthquake, the spherical hinge support 1 is not subjected to shearing force and bending moment, only the tension force and the compression force along the length direction of the support rod 2 are applied, at the moment, the support rod 2 is in a single pull rod or single compression rod state, the support rod 2 cannot deform or even damage itself due to the fact that the support rod 2 is subjected to the bending moment, the spherical hinge support can continuously work under the repeated action state of the earthquake, and the spherical hinge support 1 cannot be sheared and damaged.
Specifically, as shown in fig. 1, in the present embodiment, the exposed portion of the sphere 12 is provided with an inwardly extending threaded hole 121, the support rod 2 includes a rod body 21 and threaded sections 22 disposed at both ends of the rod body 21, and the threaded sections 22 are adapted to the threaded holes 121, so that the sphere 12 and the support rod 2 can be fixed by threaded connection, thereby facilitating actual assembly and replacement. Preferably, in the present embodiment, the outer diameter of the thread segment 22 is smaller than the outer diameter of the rod body 21, so that the size of the rod body 21 can be relatively reduced on the basis of ensuring the structural strength, and the limitation of the rotation range is avoided. Of course, in other embodiments, the ends of the sphere 12 and the support rod 2 may be welded together, so long as the installation is completed and the requirements are met.
In this embodiment, as shown in fig. 1 and 2, the spherical shell base 11 includes an inner side plate 111 and an outer side plate 112 that are fixedly connected, the inner side plate 111 is used for being fixed on the building structure 4, the sphere 12 is sandwiched between the inner side plate 111 and the outer side plate 112, a rotation space for the sphere 12 to rotate is provided between the inner side plate 111 and the outer side plate 112, and the through hole 116 is formed on a side surface of the outer side plate 112 facing away from the inner side plate 111. This arrangement may facilitate mounting of the ball 12 within the ball housing base 11, although in other embodiments, the ball housing base 11 may also include fixedly coupled top and bottom plates through which the ball 12 is rotatably mounted within the ball housing base 11. And in actual installation, counter bores matched with the inner side plates 111 are oppositely formed in the building structure 4, the inner side plates 111 are integrally sunk into the counter bores, and concrete is filled in gaps between the inner side plates 111 and the building structure 4, so that the inner side plates 111 serving as shearing resistant members can be fixed on the building structure 4 to serve as the basis of the spherical hinge support 1, and the shearing resistance is improved.
Preferably, as shown in fig. 2, 3 and 4, in this embodiment, hemispherical recesses 115 extending opposite to each other are provided on opposite surfaces of the inner side plate 111 and the outer side plate 112, and the hemispherical recesses 115 are shaped to fit the outer contour of the sphere 12, and through holes 116 penetrate the hemispherical recesses 115 of the inner side plate 111. The two hemispherical recesses 115 form a rotation space for the ball 12 to rotate, and can increase the contact area between the ball 12 and the ball housing base 11, thereby improving the stability. Of course, in other embodiments, opposite surfaces of the inner side plate 111 and the outer side plate 112 may be provided with cuboid cavities extending in opposite directions, the two cuboid cavities are butted into a cuboid cavity, and the inscribed sphere size of the cuboid cavity is adapted to the sphere 12 size, and the cuboid cavity forms a rotation space for the sphere 12 to rotate, so that stable rotation of the sphere 12 can be ensured.
Preferably, in the present embodiment, an inwardly extending chamfer 117 is provided at an end of the through hole 116 facing away from the inner side plate 111, and the chamfer 117 extends inwardly to the hemispherical recess 115 of the outer side plate 112, i.e., the chamfer 117 has the same length in the axial direction as the through hole 116, and an inner edge of the chamfer 117 is in contact with the hemispherical recess 115 of the outer side plate. The rotatable angle of the support rod piece 2 can be increased, the rotatable range of the support rod piece 2 is enlarged, and the practicability is improved.
Preferably, as shown in fig. 4, 5 and 6, the outer panel 112 includes a first outer panel 113 and a second outer panel 114 that are abutted against each other. In this embodiment, the first outer side plate 113 and the second outer side plate 114 have the same size and shape, and are symmetrically spliced to form the outer side plate 112, corresponding notches are machined at the butt joint positions of the two outer side plates, and the notches of the two outer side plates are butt-jointed to form a hemispherical recess 115, a through hole 116 and a chamfer 117 of the outer side plate 112. This facilitates processing and assembly. Of course, in other embodiments, the outer side plate 112 may be an integral structure such as the inner side plate 111, and in other embodiments, the first outer side plate 113 and the second outer side plate 114 may be different in size and shape, so long as they can be spliced into the outer side plate 112.
In this embodiment, as shown in fig. 1 and 2, the energy dissipation brace further includes a fixing anchor rod 3, the spherical hinge support 1 is fixedly mounted on the building structure 4 through the fixing anchor rod 3, preferably, an end portion of the fixing anchor rod 3 facing away from the support rod 2 is provided with an expansion base plate 32, the expansion base plate 32 is used for being deeply arranged in the building structure 4, and a reinforcing rib is provided between the expansion base plate 32 and a rod body of the fixing anchor rod 3, so that a contact area can be increased by using the expansion base plate 32, and the fixing anchor rod 3 is ensured to be reliably fixed in the building structure 4.
Specifically, as shown in fig. 1, 2, 3 and 4, in this embodiment, in the building structure 4, the fixing anchor rods 3 extend in the transverse direction and are arranged four in an array along the circumferential direction, four anchor rod holes 118 are correspondingly formed in the outer side plate 112 and the inner side plate 111, so that the fixing anchor rods 3 are firstly fixed in the building structure 4, the inner side plate 111 is sunk into a counter bore and sleeved on the fixing anchor rods 3, and the outer side plate 112 is correspondingly sleeved on the fixing anchor rods 3 and is screwed and fixed through nuts, so that the assembly is completed. In other embodiments, the number of the fixing anchors 3 may be arranged according to actual requirements, such as 3, 5,6, etc., and the arrangement manner may be arranged according to actual requirements, such as a plurality of fixing anchors 3 arranged at intervals along the circumferential direction.
In this embodiment, the supporting rod 2 is mainly composed of a core steel core, a peripheral constraint sleeve and a non-adhesive isolation material therebetween, the adhesive isolation material may be rubber, polyethylene, silica gel, latex, etc., and the spherical hinge support 1 is made of high-strength steel material, and is subsequently cured with lubricating oil.
The installation process of the application comprises the following steps: the fixing anchors 3 are arranged in the building structure 4, which is connected at both sides by means of energy consuming struts, and the fixing anchors 3 pass through countersinks for arranging the inner side panels 111.
Firstly, installing spherical hinge supports 1 on two sides, respectively sinking two inner side plates 111 into counter bores of corresponding building structures 4 in a way that hemispherical recesses 115 face outwards, penetrating anchor rods 3 through anchor rod holes 118, finishing temporary fixation, and filling and pouring gaps between the inner side plates 111 and the building structures 4 by adopting concrete of a grade higher than that of the building structures 4.
Placing the sphere 12 with the threaded hole 121 in the hemispherical recess 115 of the inner side plate 111, penetrating the outer side plate 112 on the fixed anchor rod 3 in an inward manner by the hemispherical recess 115, screwing a nut on the fixed anchor rod 3, fixing the inner side plate 111 and the outer side plate 112, rotating the inner threads on the sphere 12 to outward arrangement, screwing the thread sections 22 on the support rods on the corresponding inner threads of the sphere 12 respectively, and completing the installation of the energy-consuming support. In the actual installation, the spherical hinge support 1 on one side is first installed, and the assembly of the spherical hinge support 1 on the side and the support bar 2 is completed, and the other side is assembled.
The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that, if the terms "upper," "lower," "horizontal," "inner," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present application and simplifying the description, and does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the term "horizontal" if present does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
Claims (10)
1. The utility model provides a buckling restrained anti-seismic energy dissipation brace for building engineering, its characterized in that includes support member and two spherical hinge supports, spherical hinge support includes spheroid and spherical shell base, the spheroid rotates to be installed on the spherical shell base, be provided with on the spherical shell base and supply the through-hole that the spheroid exposes, two spheroidal exposed parts arrange in opposite directions and respectively with support member's both ends fixed connection, two spherical shell bases are used for fixed mounting respectively on corresponding building structure.
2. The buckling restrained anti-seismic energy-dissipating brace for construction work according to claim 1, wherein the spherical shell base comprises an inner side plate and an outer side plate which are fixedly connected, the inner side plate is used for being fixed on a building structure, the sphere is clamped between the inner side plate and the outer side plate, and the through Kong Kaishe is arranged on the side surface of the outer side plate, which is opposite to the inner side plate.
3. The buckling restrained anti-seismic energy-dissipating brace for construction work according to claim 2, wherein the facing surfaces of the inner side plate and the outer side plate are respectively provided with hemispherical recesses extending opposite to each other, and the shape of the hemispherical recesses is adapted to the outer contour of the sphere.
4. A buckling restrained anti-seismic energy-dissipating brace for construction work according to claim 3, wherein the end of the through hole facing away from the inner side plate is provided with an inwardly extending chamfer.
5. The buckling restrained, vibration-resistant and energy-dissipating brace of claim 4 wherein the chamfer extends inwardly to a hemispherical recess of the outer side panel.
6. The buckling restrained anti-seismic energy-consuming brace for construction work according to claim 2, wherein the inner side plate is for being integrally disposed deep inside the building structure, and the gap between the inner side plate and the building structure is filled with concrete.
7. The buckling restrained, vibration-resistant and energy-dissipating brace for construction work according to claim 2, wherein the outer side plate comprises a first outer side plate and a second outer side plate abutting each other.
8. The buckling restrained anti-seismic energy-dissipating brace for construction engineering according to claim 1, wherein the exposed portion of the sphere is provided with an inwardly extending threaded hole, the support rod comprises a rod body and threaded sections provided at both ends of the rod body, and the threaded sections are adapted to the threaded holes.
9. The buckling restrained anti-vibration and energy-consuming brace for construction work according to claim 8, wherein the outer diameter of the threaded section is smaller than the outer diameter of the rod body.
10. The buckling restrained anti-seismic energy-consuming brace for construction engineering according to claim 1, further comprising a fixed anchor rod, wherein the spherical hinge support is fixedly mounted on a building structure through the fixed anchor rod, and an extension bottom plate is arranged at the end of the fixed anchor rod, which is opposite to the support rod piece, and is used for being deeply arranged in the building structure.
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CN202322483069.1U CN220790165U (en) | 2023-09-13 | 2023-09-13 | Buckling-preventing anti-seismic energy-consuming support for building engineering |
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CN202322483069.1U CN220790165U (en) | 2023-09-13 | 2023-09-13 | Buckling-preventing anti-seismic energy-consuming support for building engineering |
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