Lightweight steel beam and masonry wall connection
Patent Information
- Application Number
- CN202522615922.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-10
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-10
AI Technical Summary
In existing steel structure logistics warehouses, the connection nodes between lightweight steel beams and the top of masonry walls are susceptible to vibration, leading to loosening and safety hazards, and their seismic performance is insufficient.
A horizontal tie beam is constructed at the top of the masonry wall, and a flexible pad is filled between the lightweight steel beam and the horizontal tie beam. The pad is connected by an elastic plate and a long screw. The compression deformation of the elastic plate offsets the elastic deformation of the flexible pad, thus preventing the deformation of the steel beam from being transmitted to the masonry wall and achieving the seismic isolation effect.
It improves the seismic performance of lightweight steel beams and masonry walls, enhances the stability and safety of connection nodes, and reduces the impact of vibration on the walls.
Smart Images
Figure CN224931186U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of steel structure building especially to a light steel beam and masonry wall connecting structure. BACKGROUND
[0002] Steel structure building is a new type of building structure system, which replaces the traditional reinforced concrete structure with profile steel and steel plate, has the advantages of high strength, good seismic performance, short construction period, can be reused, green environmental protection and is widely used in various buildings, especially warehouse logistics warehouse. The existing steel structure logistics warehouse usually installs various equipment (such as sorting equipment), and the vibration generated in the running process of these equipment will have a great influence on the connecting joint at the top of the steel beam and the masonry wall, and because the stiffness of the light steel beam is small, it is greatly affected by the live load, especially the frequent action of wind load at multiple angles, which causes frequent vibration at the connecting joint at the top of the steel beam and the masonry wall, and further causes the mortar at the node of the steel beam and the masonry wall to loosen and fall off, which has great safety hidden danger. Therefore, it is very important to improve the seismic performance between the steel beam and the masonry wall. SUMMARY
[0003] Therefore, the utility model provides a light steel beam and masonry wall connecting structure, which realizes the shock insulation connection between the light steel beam and the masonry wall, improves the seismic performance, and further improves the safety.
[0004] To achieve the above purpose, the utility model adopts the following technical scheme: The light steel beam and masonry wall connecting structure, the utility model discloses a horizontal tie beam and a plurality of connecting components for connecting the horizontal tie beam and the light steel beam together are poured on the top of the masonry wall, the light steel beam is located above the horizontal tie beam, and a flexible cushion layer is arranged in the gap between the light steel beam and the horizontal tie beam. Each connecting component comprises a pair of elastic plates welded to the bottom surface of the lower flange of the light steel beam, the elastic plates are located on both sides of the horizontal tie beam, and the two elastic plates are fixed together by a long screw rod. Each elastic plate on the connecting component has a long circular hole opened vertically, the long screw rod passes through the long circular hole between the two elastic plates, and the two ends of the long screw rod are screwed with a fastening nut.
[0005] The beneficial effects are as follows: The utility model involves constructing a horizontal tie beam at the top of the masonry wall, with a flexible pad filling between the horizontal tie beam and the lightweight steel beam. The flexible pad deforms under stress. The elastic plate on the lightweight steel beam is connected to a long screw rod passing through the horizontal tie beam. The limiting effect of the horizontal tie beam causes the compression deformation of the elongated hole of the elastic plate to be directed upward, offsetting the elastic deformation of the flexible pad and thus isolating the deformation of the steel beam from being transmitted to the masonry wall, achieving a seismic isolation effect. At the same time, the connection between the steel beam and the horizontal tie beam also ensures the stability of the wall, improving reliability and safety.
[0006] Preferably, the flexible padding layer is a polyurethane board or molded polystyrene board filled between the lightweight steel beam and the horizontal tie beam, and the outer side of the flexible padding layer is coated with silicone sealant to form a sealing layer. In actual construction, the silicone sealant solidifies to form a sealing layer that protects the flexible padding layer.
[0007] Preferably, a stiffening plate is welded to the upper surface of the lower flange plate of the lightweight steel beam corresponding to each of the connecting components. The stiffening plate of this invention improves the structural strength at the joint.
[0008] Compared with the prior art, the advantages of this utility model are: This invention involves constructing a horizontal tie beam at the top of a masonry wall, with a flexible padding layer filling the space between the horizontal tie beam and a lightweight steel beam. The flexible padding layer deforms under stress. An elastic plate on the lightweight steel beam is connected to a long threaded rod passing through the horizontal tie beam. The limiting effect of the horizontal tie beam causes the compression deformation of the elongated hole in the elastic plate to be directed upwards, offsetting the elastic deformation of the flexible padding layer. This effectively isolates the deformation of the steel beam from being transmitted to the masonry wall, achieving a seismic isolation effect. At the same time, the connection between the steel beam and the horizontal tie beam also ensures the stability of the wall, improving reliability and safety. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of this utility model.
[0010] Figure 2 yes Figure 1 A magnified diagram of the AA direction. Detailed Implementation
[0011] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.
[0012] It should be noted that in the description of this utility model, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.
[0013] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0014] like Figures 1-2 As shown, this utility model proposes a connection structure between a lightweight steel beam and a masonry wall, including a horizontal tie beam 3 (the horizontal tie beam 3 and the masonry wall 1 are fixedly connected, and the horizontal tie beam 3 is preferably a concrete beam) cast on the top of the masonry wall 1 and a plurality of connecting components that connect the horizontal tie beam 3 and the lightweight steel beam 2 together. Among them, the light steel beam 2 is located above the horizontal tie beam 3. A flexible pad 4 is provided in the gap between the light steel beam 2 and the horizontal tie beam 3. The flexible pad 4 is a polyurethane board, molded polystyrene board or polyurethane foam that is filled between the light steel beam 2 and the horizontal tie beam 3. The outer side of the flexible pad 4 is coated with silicone sealant (other sealants, such as caulking compound, can also be used) to form a sealing layer. Each connecting component includes a pair of elastic plates 5 welded to the bottom surface of the lower flange of the lightweight steel beam 2. The elastic plates 5 are located on both sides of the horizontal tie beam 3. Each elastic plate 5 has a vertically opened elongated hole 6. The two elastic plates 5 are connected by a long screw 7 passing through the horizontal tie beam 3 (the horizontal tie beam 3 has a pre-reserved elongated through hole that matches the long screw 7, so that the force on the long screw 7 can be adjusted within the elongated through hole). The two ends of the long screw 7 pass outward from the elongated hole 6 of the elastic plate 5, and fastening nuts are screwed on both ends, thereby realizing the connection between the lightweight steel beam 2 and the horizontal tie beam 3, and further realizing the indirect connection between the lightweight steel beam and the masonry wall.
[0015] This invention involves constructing a horizontal tie beam 3 of concrete structure on top of the masonry wall 1. A flexible pad 4 is filled between the horizontal tie beam 3 and the lightweight steel beam 2. The flexible pad 4 deforms accordingly under stress (the direction of the stress is downward). An elastic plate 5 is installed on the lightweight steel beam 2. The elastic plate 5 is connected to a long screw 7 that passes through the horizontal tie beam 3. The long screw 7 is limited by the horizontal tie beam, thereby applying an upward force to the elastic plate 5. This causes the compression deformation of the elongated hole 6 to be upward, thus counteracting the elastic deformation of the flexible pad 4 and further isolating the elasticity from being transmitted to the masonry wall 1, achieving a seismic isolation effect and improving the reliability and safety of the connection node.
[0016] During actual installation, stiffening plates 8 are symmetrically welded to the upper surface of the lower flange plate of the lightweight steel beam 2 at each corresponding connection component. The bottom of the stiffening plate 8 is welded to the lower flange plate of the lightweight steel beam 2, and one side of the stiffening plate 8 is welded to the web plate of the lightweight steel beam 2, thereby improving the structural strength at the connection node. See details below. Figure 2 .
[0017] The construction steps for the connection structure between the lightweight steel beam 2 and the masonry wall 1 described in this utility model are as follows: The first step is to construct a horizontal tie beam 3 of cast-in-place reinforced concrete structure on the top of the masonry wall 1. During the pouring, multiple vertically opened elongated through holes are reserved on the horizontal tie beam 3 to provide a foundation for the installation of the long screw rod 7 described later. In addition, the height difference between the top of the horizontal tie beam 3 and the bottom of the light steel beam 2 is controlled within 30 mm. The second step is to construct a flexible pad 4 on the top of the horizontal tie beam 3 using molded polystyrene board or polyurethane board, and seal both sides with silicone sealant (or other caulking compound) to form a sealing layer. The third step is to symmetrically weld multiple pairs of stiffening plates 8 on the upper surface of the lower flange plate of the light steel beam 2, and symmetrically weld elastic plates 5 on the lower surface of the lower flange of the light steel beam 2 at the corresponding position of each pair of stiffening plates 8. The elastic plates 5 have elongated holes 6 to provide a certain deformation space for the elastic plates. The fourth step involves connecting each pair of elastic plates 5 and the horizontal tie beam 3 together with connecting bolts, and then fastening each pair of elastic plates 5 together with fastening nuts. When the lightweight steel beam presses down on the flexible pad, the long bolt 7, which fastens each pair of elastic plates 5, moves downward to its limit position first due to the force on the long bolt 7. When the flexible pad 4 continues to deform, the long bolt 7, under the limit of the horizontal tie beam 3, applies an upward reverse force to the elastic plate 5, thereby isolating the deformation of the steel beam from being transmitted to the masonry wall, achieving a seismic isolation effect. At the same time, the connection between the steel beam and the horizontal tie beam also ensures the stability of the wall, improving reliability and safety.
[0018] Finally, it should be emphasized that the above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A lightweight steel beam and masonry wall connection structure, characterized in that: It includes a horizontal tie beam cast on the top of the masonry wall and multiple connecting components that connect the horizontal tie beam and the light steel beam together. The light steel beam is located above the horizontal tie beam, and a flexible pad is provided in the gap between the light steel beam and the horizontal tie beam. Each of the connecting components includes a pair of elastic plates welded to the bottom surface of the lower flange of the lightweight steel beam, the elastic plates being located on both sides of the horizontal tie beam, and the two elastic plates being fixed together by long screws. Each elastic plate on the connecting assembly has a vertically opened elongated hole, and the long screw passes through the elongated hole between the two elastic plates, with fastening nuts screwed on both ends of the long screw.
2. The lightweight steel beam and masonry wall connection structure according to claim 1, characterized in that: The flexible padding layer is a polyurethane board or molded polystyrene board filled between the lightweight steel beam and the horizontal tie beam, and the outer side of the flexible padding layer is coated with silicone sealant to form a sealing layer.
3. The lightweight steel beam and masonry wall connection structure according to claim 1, characterized in that: A stiffening plate is welded to the upper surface of the lower flange plate of the lightweight steel beam corresponding to each of the aforementioned connecting components.