Steel-wood composite shear wall structure

Abstract

This invention relates to a steel-wood composite shear wall structure, solving the problems of wood planks being prone to splitting and easily ignited, leading to fires. The steel-wood unit includes connecting steel bars, connecting steel strips, and wood planks. The connecting steel bars have through holes corresponding to bolt holes. A fully penetrating U-shaped groove is provided on one side of each of the two connecting steel bars, extending along the length of the connecting steel bars. The connecting steel strip is vertically welded between the bottoms of the U-shaped grooves of the two connecting steel bars. The wood planks are slidably assembled within the through-holes. Each steel-wood unit is slidably mounted between the grooves of two adjacent steel columns via the connecting steel bars at both ends, and connected by long bolts passing through both the bolt holes and the through-holes. Multiple steel-wood units are installed side-by-side between the grooves of two adjacent steel columns, both vertically and in width. Fire-resistant adhesive filler is filled between the surfaces of any adjacent wood planks, and the connecting steel strip is encased within the fire-resistant adhesive filler.

Description

Technical Field

[0001] This invention relates to a steel-wood composite shear wall structure. Background Technology

[0002] Steel-wood composite shear walls outperform traditional single-material structures in terms of structural performance, construction efficiency, environmental friendliness, thermal insulation, seismic resistance, and post-earthquake safety, making them particularly suitable for high-rise mixed-use buildings, prefabricated residential buildings, and earthquake-resistant areas. However, some drawbacks exist during their use. Firstly, traditional steel-concrete structures typically connect steel beams and wooden planks directly with bolts. Due to significant differences in expansion coefficients and ductility between steel and wood, the bolt holes in the planks are prone to tearing. This is because wood is composed of fibers, and bolt holes contain bolts. When the bolts move relative to the bolt holes, tearing forces along the fiber direction are easily generated, similar to the effect of an axe splitting wood, which greatly affects the strength of the wood. Secondly, wood is a flammable material. Traditional steel-wood composite structures only spray a fire-retardant coating on the outermost layer of planks. Earthquakes can easily ignite open flames. When the fire-retardant coating on the wood is damaged during an earthquake, the damaged areas are easily ignited, leading to the complete combustion of a large number of planks. Summary of the Invention

[0003] The purpose of this invention is to provide a steel-wood composite shear wall structure to solve the technical problems of easy splitting of wooden boards and easy ignition of wooden boards in existing steel-wood composite structures, which can lead to fires.

[0004] The technical solution of the present invention is as follows: A steel-wood composite shear wall structure, comprising: The steel columns are made of H-beams and are set vertically in pairs. The grooves on one side of the steel column have coaxial and through bolt holes on both sides. There are multiple bolt holes, which are spaced apart along the length of the steel column. The steel columns serve as the main load-bearing components. Their bottom ends are connected to the foundation, and their top ends are connected to the floor beams or steel frame beams to form a stable vertical boundary. The steel-wood unit, comprising multiple units, is installed between adjacent steel columns. It includes two connecting steel bars, at least two connecting steel strips, and multiple wooden planks. The connecting steel bars have through holes corresponding to the bolt holes. A fully penetrating U-shaped groove is provided on one side of each of the two connecting steel bars, extending along the length of the connecting steel bars. The connecting steel strips are vertically welded between the bottoms of the U-shaped grooves of the two connecting steel bars, with the connecting steel strips located in the middle of the width of the U-shaped groove. The connecting steel strips and the two side walls of the U-shaped groove respectively form through spaces for inserting the wooden planks. The wooden planks are slidably assembled within these through spaces. The wooden planks of the steel-wood unit serve as the main shear-resistant components, possessing good compressive and shear resistance. Each steel-wood unit is slidably mounted between the grooves of two adjacent steel columns by connecting steel strips at both ends, and is connected by long bolts passing through both the bolt holes and the mounting holes. Multiple steel-wood units are installed side by side in the vertical and width directions between the grooves of two adjacent steel columns. Fireproof adhesive filler is filled between the surfaces of any adjacent wooden boards, and the connecting steel strip is wrapped inside the fireproof adhesive filler.

[0005] Based on the above solution, further improvements are made as follows: the connecting steel strips of the steel-wood unit are connected by vertical steel strips, which are coplanar with the connecting steel strips. The vertical steel strips ensure that after the wooden plank slides into the installation space between the U-shaped groove and the connecting steel strip, it is always kept in close contact with the connecting steel strip. Furthermore, the vertical steel strips also act as guides when the plank slides in, and the connection between the vertical steel strip and the connecting steel strip forms an integrated structure, resulting in a stronger overall load-bearing capacity.

[0006] Based on the above scheme, further improvements are made as follows: Multiple limiting steel plates are spaced along the length of the groove on the side of the steel column furthest from the bolt holes. The limiting steel plates are perpendicular to the steel column. End steel plates are vertically connected to both ends of the steel column. The end steel plates and limiting steel plates have coaxial through holes. Prestressed steel strands are simultaneously threaded through the through holes of both the end steel plates and the limiting steel plates to apply prestress to the steel column. When the structure is subjected to horizontal loads, the introduction of prestress provides a restoring moment, enabling the shear wall to self-reset after unloading.

[0007] Based on the above solution, the following improvement is made: the connecting steel strip is provided with a through-hole for weight reduction.

[0008] Based on the above scheme, the following improvements are made: the outer surfaces of the two steel columns on both sides are connected by multiple reinforcing steel strips spaced apart in the vertical direction, and the long bolts pass through the reinforcing steel strips on both sides simultaneously.

[0009] Based on the above scheme, the following improvements are made: there is a certain gap between the bottom of the corresponding groove of the connecting steel bar and the steel column.

[0010] Based on the above scheme, the following improvements are made: the fireproof bonding filler includes refractory cement.

[0011] The beneficial effects of this technical solution are as follows: In the use of a steel-wood composite shear wall structure, the connection between the steel columns and the steel-wood units is achieved by connecting steel bars and bolts to the steel columns. This eliminates the risk of tearing between steel sections. The wooden planks are held between the connecting steel bars and connecting steel strips, rather than being directly connected to the steel columns by bolts, thus preventing splitting. The U-shaped grooves of the connecting steel bars provide restraint, allowing the connecting steel bars and wooden planks to work together to bear the load. This design features lightweight construction, strong shear resistance, and uniform stress distribution in all directions. Furthermore, the connecting steel strips not only support the load during displacement changes between the connecting steel bars but also reduce the stress on the wooden planks during deformation. The load-bearing capacity ensures that the wooden boards are not easily damaged. While utilizing the advantages of wooden boards, the main load-bearing and buffering is the steel. Moreover, since the connecting steel strips are placed between the wooden boards, the gaps formed can be filled with fire-resistant adhesive filler. This creates a fireproof layer and an adhesive layer between every two layers of wooden boards. While ensuring that each wooden board is well bonded to share the load, it also provides multi-level fire protection. Even if the fireproof coating on the outer surface is damaged and ignited, the fire-resistant adhesive filler between every two layers ensures that the flames will not spread, thus preventing a fire. Furthermore, the combined heat insulation performance of the multi-layer fire-resistant adhesive filler and the wooden boards is relatively high. Attached Figure Description

[0012] Figure 1 This is a front view schematic diagram of an embodiment of the steel-wood composite shear wall structure of the present invention; Figure 2 This is a structural schematic diagram of one side of the steel column; Figure 3 for Figure 1 A schematic diagram of the cross-section; Figure 4 Front view of the steel-wood unit before installing the wooden planks; Figure 5 for Figure 4 Top view; In the diagram: 1-Steel column, 11-Bolt hole, 12-Limiting steel plate, 13-End steel plate, 14-Through hole, 2-Steel-wood unit, 21-Connecting steel strip, 211-Through hole, 212-U-shaped groove, 213-Through space, 22-Connecting steel strip, 221-Vertical steel strip, 23-Wooden board, 3-Long bolt, 4-Fireproof adhesive filler, 5-Prestressed steel strand, 6-Anchor, 7-Reinforcing steel strip. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, and not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0015] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0016] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0017] A specific embodiment of the steel-wood composite shear wall structure of the present invention: as follows Figure 1-5 As shown, the steel-wood composite shear wall structure includes steel columns 1 and steel-wood units 2.

[0018] The steel column 1 is made of H-beams and is set vertically in pairs. The groove on one side of the steel column 1 has coaxial and through bolt holes 11 on both sides of the groove wall. There are multiple bolt holes 11 and they are spaced apart along the length of the steel column 1. The steel column 1 plays the role of the main load-bearing component. Its bottom end is connected to the foundation and its top end is connected to the floor beam or steel frame beam to form a stable vertical boundary.

[0019] Multiple steel-wood units 2 are installed between adjacent steel columns 1. Each unit includes two connecting steel bars 21, at least two connecting steel strips 22, and multiple wooden planks 23. The connecting steel bars 21 have through holes 211 corresponding to the bolt holes 11. A fully penetrating U-shaped groove 212 is provided on one side of each of the two connecting steel bars 21, extending along the length of the connecting steel bars 21. The connecting steel strips 22 are vertically welded between the bottoms of the U-shaped grooves 212 of the two connecting steel bars 21. The steel strip 22 is located in the middle of the width direction of the U-shaped groove 212. The connecting steel strip 22 and the two side walls of the U-shaped groove 212 respectively form a mounting space 213 for mounting the wooden planks 23. The wooden planks 23 are slidably assembled in the mounting space 213. The wooden planks 23 of the steel-wood unit 2 serve as the main shear-resistant components, possessing good compressive and shear resistance. The connecting steel strips 22 of the steel-wood unit 2 are connected by vertical steel strips 221, which are coplanar with the connecting steel strips 22. The vertical steel strips 221 ensure that after the wooden planks 23 slide into the mounting space between the U-shaped groove 212 and the wall of the connecting steel strip 21, they are always kept in close contact with the connecting steel strip 21 by the vertical steel strip. Moreover, the vertical steel strips 221 also serve as guides when the wooden planks 23 slide in. Furthermore, the vertical steel strips 221 and the connecting steel strips 22 form an integrated structure, resulting in a stronger overall load-bearing capacity.

[0020] Each steel-wood unit 2 is slidably mounted between the grooves of two adjacent steel columns 1 via connecting steel strips 21 at both ends, and is connected by long bolts 3 passing through bolt holes 11 and mounting holes 211 simultaneously; multiple steel-wood units 2 are installed side by side between the grooves of two adjacent steel columns 1 in both the vertical and width directions; fireproof adhesive filler 4 is filled between the surfaces of any adjacent wooden boards 23, and the connecting steel strip 22 is wrapped inside the fireproof adhesive filler 4.

[0021] Multiple limiting steel plates 12 are spaced along the length of the groove on the side of the steel column 1 away from the bolt holes 11. The limiting steel plates 12 are perpendicular to the steel column 1. End steel plates 13 are perpendicularly connected to both ends of the steel column 1. The end steel plates 13 and the limiting steel plates 12 are provided with coaxial through holes 14. Prestressed steel strands 5 are simultaneously inserted into the through holes 14 of the end steel plates 13 and the limiting steel plates 12 to apply prestress to the steel column 1. When the structure is subjected to horizontal loads, the introduction of prestress can provide a restoring moment, enabling the shear wall to achieve self-reset after unloading.

[0022] The outer surfaces of the two steel columns 1 are connected by multiple reinforcing steel strips 7 spaced apart in the vertical direction, and long bolts 3 pass through the reinforcing steel strips 7 on both sides simultaneously.

[0023] There is a certain gap between the bottom of the corresponding groove of the connecting steel strip 21 and the steel column 1 to allow sufficient deformation clearance. The fireproof bonding filler 4 includes refractory cement.

[0024] In other embodiments, the connecting steel strip 21 has a through-hole for weight reduction.

[0025] In the steel-wood composite shear wall structure, the connection between the steel column 1 and the steel-wood unit 2 is achieved by connecting steel bars 21 and bolts to the steel column 1. This connection between steel bars eliminates the risk of tearing. The wooden plank 23 is held between the connecting steel bars 21 and the connecting steel strip 22, rather than being directly connected to the steel column 1 with bolts, thus preventing splitting. The U-shaped groove 212 of the connecting steel bar 21 provides restraint, allowing the connecting steel bar 21 and the wooden plank 23 to work together to bear the load. This structure is characterized by its light weight, strong shear resistance, and uniform stress distribution. Furthermore, the connecting steel strip 22 not only supports the load-bearing capacity during displacement changes between the connecting steel bars 21, but also reduces the stress on the wooden plank 23 during deformation. The load-bearing capacity ensures that the wooden boards 23 are not easily damaged. While utilizing the advantages of the wooden boards 23, the load-bearing and buffering are mainly provided by the steel. Moreover, since the connecting steel strips 22 are set between the wooden boards 23, the gaps formed can be filled with fireproof adhesive filler 4. Thus, a fireproof layer and an adhesive layer are also set between every two layers of wooden boards 23. While ensuring that each wooden board 23 is well bonded to share the load, it can also provide multi-level fire protection. Even if the fireproof coating on the outer surface is damaged and ignited, the fireproof adhesive filler 4 between every two layers ensures that the flame will not spread, thereby preventing the fire. Furthermore, the comprehensive heat insulation performance of the multi-layer fireproof adhesive filler 4 and the wooden boards 23 is also relatively high.

[0026] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. A steel-wood composite shear wall structure, characterized in that, include: The steel columns are made of H-beams and are set vertically in pairs. The grooves on both sides of one side of the steel column have coaxial and through bolt holes. There are multiple bolt holes, which are spaced apart along the length of the steel column. The steel-wood unit, which consists of multiple units, is installed between adjacent steel columns. It includes two connecting steel bars, at least two connecting steel strips, and multiple wooden planks. The connecting steel bars have through holes corresponding to the bolt holes. The two connecting steel bars have a fully penetrating U-shaped groove on one side opposite to each other. The U-shaped groove extends along the length of the connecting steel bars. The connecting steel strips are vertically welded between the bottom of the U-shaped grooves of the two connecting steel bars. The connecting steel strips are located in the middle of the width of the U-shaped groove. The connecting steel strips and the two side walls of the U-shaped groove respectively form a through space for inserting the wooden planks. The wooden planks are slidably assembled in the through space. Each steel-wood unit is slidably mounted between the grooves of two adjacent steel columns by connecting steel strips at both ends, and is connected by long bolts passing through both the bolt holes and the mounting holes. Multiple steel-wood units are installed side by side in the vertical and width directions between the grooves of two adjacent steel columns. Fireproof adhesive filler is filled between the surfaces of any adjacent wooden boards, and the connecting steel strip is wrapped inside the fireproof adhesive filler.

2. The steel-wood composite shear wall structure according to claim 1, characterized in that, The steel-wood unit is connected to each other by a vertical steel strip, and the vertical steel strip and the connecting steel strip are coplanar.

3. The steel-wood composite shear wall structure according to claim 1, characterized in that, Multiple limiting steel plates are spaced apart along the length of the groove on the side of the steel column away from the bolt holes. The limiting steel plates are perpendicular to the steel column. End steel plates are perpendicularly connected to both ends of the steel column. The end steel plates and the limiting steel plates are provided with coaxial through holes. Prestressed steel strands are simultaneously inserted into the through holes of the end steel plates and the limiting steel plates to apply prestress to the steel column.

4. A steel-wood composite shear wall structure according to claim 1, characterized in that, The connecting steel bar has a through-hole for weight reduction.

5. A steel-wood composite shear wall structure according to claim 1, characterized in that, The outer surfaces of the two steel columns are connected by multiple reinforcing steel strips spaced apart in the vertical direction, and the long bolts pass through the reinforcing steel strips on both sides simultaneously.

6. A steel-wood composite shear wall structure according to claim 1, characterized in that, There is a certain gap between the bottom of the corresponding groove of the connecting steel bar and the steel column.

7. A steel-wood composite shear wall structure according to claim 1, characterized in that, The fire-resistant bonding filler includes refractory cement.

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