Sliding connection device between corridor telescopic gaps
By setting up a one-way sliding connection device in the expansion gap of the corridor, the problem of weak lateral stiffness of the corridor is solved, the lateral stiffness is enhanced, the lateral displacement is reduced, and the free shrinkage of temperature stress is achieved.
Patent Information
- Application Number
- CN202420789220.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-04-17
AI Technical Summary
In the prior art, after the structural joints are arranged along the corridor, the lateral stiffness of the corridor is weak, and the lateral displacement angle and displacement are relatively large under earthquake and wind load conditions.
A sliding connection device between the expansion and contraction gaps of the connecting corridor is designed, including multiple sets of fixed steel plates installed along the expansion and contraction gaps of the connecting corridor. The fixed steel plate group includes a pair of fixed steel plates, which are fixed up and down on the connecting corridor floor slabs on both sides of the expansion and contraction gaps of the connecting corridor, and are unidirectionally slidingly connected at the gaps.
Through the one-way sliding connection structure, the lateral stiffness of the corridor is enhanced, the lateral displacement angle and displacement are reduced, and the specifications and limitations are met under wind loads and earthquake load conditions, while ensuring that the corridor can adapt to the free shrinkage of temperature stress.
Smart Images
Figure CN222893796U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of corridors, in particular to a sliding connection device between expansion gaps in corridors. Background Art
[0002] In order to meet the requirements of architectural shape and functional use, two or more building units are connected to each other by an overhead connector, which is a corridor. The span of the corridor can be several meters long or tens of meters long. In the case where the building structure exceeds the specified length, it is required to set a structural joint to separate the structural intervals in order to reduce the impact of temperature stress on the structure. In the case of a corridor between two or more building units, for the above-mentioned situation where the structural unit is too long, a structural joint is often set in the corridor. The corridor is basically a single-span frame structure. After the structural joint is set along the corridor, the lateral stiffness of the corridor will be weak, and the lateral displacement angle and displacement will be large under the action of earthquake and wind load conditions.
[0003] In order to reduce the lateral displacement angle and displacement of the corridor, while ensuring that the expansion joints of the corridor can adapt to the free contraction of temperature stress, the present application designs a connection device between the expansion joints of the corridor, and arranges a one-way sliding connection structure along the longitudinal direction of the corridor structure gap to increase the deformation capacity of the corridor, thereby enhancing the seismic resistance of the structure. Utility Model Content
[0004] The technical problem to be solved by the present application is that in the prior art, after the structural joints are set along the corridor, the lateral stiffness of the corridor will be weak, and under the action of earthquake and wind load conditions, the lateral displacement angle and displacement will be large.
[0005] In order to solve the above technical problems, the present application provides a sliding connection device between corridor expansion gaps, including: a connecting assembly, including multiple groups of fixed steel plate groups installed along the corridor expansion gaps, the fixed steel plate groups include a pair of fixed steel plates, the pair of fixed steel plates are staggered up and down and fixed on the corridor floor slabs on both sides of the corridor expansion gap, and the pair of fixed steel plates are fitted up and down at the corridor expansion gap and connected in one-way sliding manner.
[0006] According to an embodiment of the present application, the fixing steel plate is fixed to the corridor floor slab by means of fixing bolts, and the corridor floor slab is provided with drill holes for the fixing bolts to pass through.
[0007] According to an embodiment of the present application, a fixing bolt cover plate is arranged between the nut at the upper end of the fixing bolt and the corridor floor, and the nut at the lower end of the fixing bolt is provided with a fixing bolt pad.
[0008] According to an embodiment of the present application, each fixing steel plate is equipped with no less than 4 fixing bolts which are symmetrically arranged.
[0009] According to an embodiment of the present application, the diameter of the drill hole is 6 mm, and the gap between the fixing bolt and the drill hole is filled with anchor glue.
[0010] According to an embodiment of the present application, the thickness of the fixed steel plate is 16 mm, and stiffening ribs for fixing the steel plate are arranged on it.
[0011] According to an embodiment of the present application, at the fitting point of a pair of fixed steel plates, a bolt hole is provided on the fixed steel plate on one side, and a waist-shaped hole is provided on the fixed steel plate on the other side for matching with the bolt hole. Lateral restraint bolts pass through the bolt holes and the waist-shaped holes to connect the fixed steel plates on both sides.
[0012] According to an embodiment of the present application, the lateral restraint bolts are M24 high-strength bolts of grade 10.9, and fixing bolt pads are provided at the upper and lower ends of the lateral restraint bolts.
[0013] According to an embodiment of the present application, the bolt hole has a diameter of 26 mm, and the waist-shaped hole is an oblong hole of 100×6.
[0014] According to an embodiment of the present application, the fixing steel plate is made of Q355B steel material.
[0015] Compared with the prior art, the technical solution of the present application has the following beneficial effects:
[0016] (1) The utility model utilizes the one-way displacement connection device between the expansion joints as a buffer space for the corridor body provided with structural joints to transmit deformations of different displacement forces, thereby solving the influence of displacement of the corridor body between building monomers under dynamic forces such as wind load, earthquake load and temperature load.
[0017] (2) The utility model adopts a plurality of groups of fixed steel plates arranged along the longitudinal direction of the corridor structural gap, each group of fixed steel plates is divided into two pieces, respectively fixing the corridor floor slabs on both sides of the structural gap, and the two fixed plates are connected in a one-way sliding manner at the structural gap, which can ensure that the corridors on both sides of the structural gap can adapt to the free contraction of temperature stress along the longitudinal direction of the corridor. At the same time, without increasing the cross-sectional size of the corridor support column, the utility model can easily increase the lateral stiffness of the corridors on both sides of the structural gap, so that the lateral displacement angle and lateral displacement of the corridor under wind load conditions and horizontal seismic force conditions meet the requirements specified in the specifications; compared with the design method of simply increasing the cross-sectional size of the corridor support column, this one-way sliding connection structure has a significant effect of saving engineering costs.
[0018] (3) After the fixed bolts and bolt holes are threaded together to achieve a secure installation between the corridor bodies on both sides of the structural joint, the fixing bolt pads and fixing bolt covers are used to limit and tighten the bottom ends of the fixing bolts to prevent the threads of the fixing bolts from loosening, thereby ensuring long-term and secure installation and fixation between the corridor bodies, improving their practicality, and solving the problem of inconvenient bolt loosening prevention. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present application, rather than limiting the present application.
[0020] Figure 1 It is a schematic diagram of the plane assembly of a sliding connection device between expansion gaps of a corridor according to an example of the utility model;
[0021] Figure 2 It is a cross-sectional schematic diagram of a pair of fixed steel plates after assembly in an example of the utility model;
[0022] Figure 3 It is a structural schematic diagram of a pair of fixed steel plate groups in an example of the utility model.
[0023] The following are the descriptions of the reference numerals:
[0024] 1. Corridor floor, 2. Fixed steel plate, 3. Fixed bolts, 4. Lateral restraint bolts, 20. Fixed steel plate group, 21. Stiffening ribs, 22. Waist-shaped holes, 31. Fixed bolt cover plate, 32. Fixed bolt pad plate. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme of the embodiment of the present application will be clearly and completely described in conjunction with the drawings of the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application.
[0026] Unless otherwise defined, the technical or scientific terms used herein shall have the common meanings understood by persons with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in the patent application specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "an" do not indicate a quantity limitation, but indicate the existence of at least one.
[0027] like Figures 1 to 3As shown, a sliding connection device between expansion joints of a corridor is exemplified in the utility model, including a connection assembly installed along the expansion joint of the corridor. The lateral stiffness of a single-span corridor is weak after the structural joint is set, and the lateral displacement angle and displacement are too large under the action of earthquake and wind load conditions, thereby affecting the architectural use function of the corridor. The present application provides a one-way sliding connection structure that can ensure that the concrete structures on both sides of the expansion joint of the corridor can adapt to the free contraction of temperature stress and constrain the out-of-plane stiffness of the corridor.
[0028] In this embodiment, the connecting assembly includes multiple groups of fixed steel plate groups 20 installed along the expansion gap of the corridor. The fixed steel plate group 20 includes a pair of fixed steel plates 2. The pair of fixed steel plates 2 are staggered up and down and fixed on the corridor floor 1 on both sides of the expansion gap of the corridor. The pair of fixed steel plates 2 are fitted up and down at the expansion gap of the corridor and are connected by one-way sliding.
[0029] Furthermore, the width of the corridor expansion joint is 180 mm.
[0030] Furthermore, the fixing steel plate 2 is fixed to the corridor floor 1 by fixing bolts 3, and the corridor floor 1 is provided with holes for the fixing bolts 3 to pass through. Figure 2 As shown, a fixing bolt cover plate 31 is arranged between the nut at the upper end of the fixing bolt 3 and the corridor floor 1, and the nut at the lower end of the fixing bolt 3 is provided with a fixing bolt pad 32, so that the bottom end of the fixing bolt 3 can be limited and tightened to prevent the thread of the fixing bolt 3 from loosening.
[0031] Preferably, each fixing steel plate 2 is equipped with no less than four fixing bolts 3 which are symmetrically arranged.
[0032] Furthermore, the diameter of the drill hole is 6 mm, and the gap between the fixing bolt 3 and the drill hole is filled with anchor glue.
[0033] Furthermore, the fixed steel plate 2 is made of Q355B steel material; the fixed steel plate 2 is 16 mm thick, and a stiffening rib 21 of the fixed steel plate 2 is arranged thereon, and the stiffening rib 21 is perpendicular to the web of the fixed steel plate 2; the length of the fixed steel plate 2 is 250 mm.
[0034] Furthermore, at the joint of a pair of fixed steel plates 2, a bolt hole is provided on one side of the fixed steel plate 2, and a waist-shaped hole 22 is provided on the other side of the fixed steel plate 2 for matching with the bolt hole. The lateral restraint bolts 4 pass through the bolt holes and the waist-shaped holes 22 to connect the fixed steel plates 2 on both sides, and a sliding engagement structure is formed between the lateral restraint bolts 4 and the inside of the waist-shaped holes 22. The lateral stiffness of the corridors on both sides of the structural gap is improved by sliding between the lateral restraint bolts 4 and the inside of the waist-shaped holes 22, so that the lateral displacement angle and lateral displacement of the corridors under wind load conditions and horizontal seismic force conditions meet the requirements specified in the specification. Preferably, the bolt hole diameter is 26 mm, and the waist-shaped hole 22 is an oblong hole of 100×6.
[0035] Furthermore, the lateral restraint bolt 4 is a 10.9-grade M24 high-strength bolt, and fixing bolt pads 32 are provided at the upper and lower ends of the lateral restraint bolt 4 .
[0036] In this embodiment, the use process of a sliding connection device between corridor expansion joints is as follows: first, holes are drilled on the corridor concrete slabs that have been constructed on both sides of the structural gap to fix the fixed steel plates 2 of the supports. The diameter of the drilled holes is 2 mm larger than the diameter of the fixing bolts 3. After the fixing bolts 3 are installed, the gaps between the bolts and the drilled holes are filled with anchor glue. Eight holes are drilled on the corridor concrete slabs on each side of the structural gap, and every four holes are used to fix a fixed steel plate 2. Then, two fixed steel plates 2 are installed on the corridor concrete slab on the left side of the structural gap. Each fixed steel plate 2 is equipped with four fixing bolts 3. Pads and cover plates are set at both ends of the bolts to ensure that there is no slippage between the connecting steel plate and the corridor concrete slab. The two fixed steel plates 2 of the corridor are arranged on the outside, and the two fixed steel plates 2 of the left corridor are provided with oblong holes opened along the longitudinal direction of the corridor; further, two fixed steel plates 2 are installed on the concrete slab of the corridor on the right side of the structural gap, and the two fixed steel plates 2 are located on the inner side of the two fixed steel plates 2 of the left corridor, and are placed adjacent to each other. Similarly, each fixed steel plate 2 is equipped with 4 fixing bolts 3, and pads and cover plates are arranged at both ends of the bolts to ensure that there is no slippage between the connecting steel plate and the concrete slab of the corridor, and bolt holes are arranged on the two fixed steel plates 2 on the concrete slab of the right corridor; finally, the fixed steel plates 2 of the left corridor and the fixed steel plates 2 of the right corridor are constrained together with lateral restraint bolts 4, and pads are arranged at both ends of the bolts.
[0037] In summary, the technical solution of the present application has the following beneficial effects:
[0038] (1) The utility model utilizes the one-way displacement connection device between the expansion joints as a buffer space for the corridor body provided with structural joints to transmit deformations of different displacement forces, thereby solving the influence of displacement of the corridor body between building monomers under dynamic forces such as wind load, earthquake load and temperature load.
[0039] (2) The utility model adopts a plurality of groups of fixed steel plates arranged along the longitudinal direction of the corridor structural gap, each group of fixed steel plates is divided into two pieces, respectively fixing the corridor floor slabs on both sides of the structural gap, and the two fixed plates are connected in a one-way sliding manner at the structural gap, which can ensure that the corridors on both sides of the structural gap can adapt to the free contraction of temperature stress along the longitudinal direction of the corridor. At the same time, without increasing the cross-sectional size of the corridor support column, the utility model can easily increase the lateral stiffness of the corridors on both sides of the structural gap, so that the lateral displacement angle and lateral displacement of the corridor under wind load conditions and horizontal seismic force conditions meet the requirements specified in the specifications; compared with the design method of simply increasing the cross-sectional size of the corridor support column, this one-way sliding connection structure has a significant effect of saving engineering costs.
[0040] (3) After the fixed bolts and bolt holes are threaded together to achieve a secure installation between the corridor bodies on both sides of the structural joint, the fixing bolt pads and fixing bolt covers are used to limit and tighten the bottom ends of the fixing bolts to prevent the threads of the fixing bolts from loosening, thereby ensuring long-term and secure installation and fixation between the corridor bodies, improving their practicality, and solving the problem of inconvenient bolt loosening prevention.
[0041] The above are merely exemplary embodiments of the present application and are not intended to limit the protection scope of the present application. The protection scope of the present application is determined by the appended claims.
Claims
1. A sliding connection device between corridor expansion gaps, characterized in that: include: The connection assembly includes a plurality of fixed steel plate groups installed along the expansion gap of the corridor, wherein the fixed steel plate group includes a pair of fixed steel plates, and the pair of fixed steel plates are staggered up and down and fixed on the corridor floor slabs on both sides of the expansion gap of the corridor respectively, and the pair of fixed steel plates are fitted up and down at the expansion gap of the corridor and are connected by one-way sliding.
2. A sliding connection device between corridor expansion gaps according to claim 1, characterized in that: The fixing steel plate is fixed to the corridor floor slab by fixing bolts, and the corridor floor slab is provided with drilling holes for the fixing bolts to pass through.
3. A sliding connection device between corridor expansion gaps according to claim 2, characterized in that: A fixing bolt cover plate is arranged between the nut at the upper end of the fixing bolt and the corridor floor slab, and a fixing bolt pad is arranged at the nut at the lower end of the fixing bolt.
4. The sliding connection device between the expansion gaps of the corridor according to claim 2, characterized in that: Each of the fixing steel plates is equipped with no less than 4 fixing bolts which are symmetrically arranged.
5. The sliding connection device between the expansion gaps of the corridor according to claim 2, characterized in that: The diameter of the drill hole is 6 mm, and the gap between the fixing bolt and the drill hole is filled with anchor glue.
6. The sliding connection device between corridor expansion gaps according to claim 1, characterized in that: The fixed steel plate is 16 mm thick and has stiffening ribs for fixing the steel plate.
7. The sliding connection device between corridor expansion gaps according to claim 1, characterized in that: At the joint of the pair of fixed steel plates, a bolt hole is provided on one of the fixed steel plates, and a waist-shaped hole is provided on the other fixed steel plate for matching with the bolt hole. Lateral restraint bolts pass through the bolt hole and the waist-shaped hole to connect the fixed steel plates on both sides.
8. The sliding connection device between the expansion gaps of the corridor according to claim 7, characterized in that: The lateral restraint bolts are M24 high-strength bolts of grade 10.9, and fixing bolt pads are provided at the upper and lower ends of the lateral restraint bolts.
9. The sliding connection device between corridor expansion gaps according to claim 7, characterized in that: The bolt hole has a diameter of 26 mm, and the waist-shaped hole is an oblong hole of 100×6.
10. The sliding connection device between corridor expansion gaps according to claim 1, characterized in that: The fixing steel plate is made of Q355B steel material.