Steel plate shear wall and structural calculation analysis method

Abstract

The application discloses a kind of steel plate shear wall and structural calculation analysis method, it is related to structural engineering technical field, including first metal frame and second metal frame, first metal frame and second metal frame are connected by connecting mechanism, connecting mechanism includes connecting metal, longitudinal prestressed reinforcement and transverse prestressed reinforcement, both ends of connecting metal are fixedly connected with first metal frame and second metal frame respectively, both ends of transverse prestressed reinforcement are fixedly connected with first metal frame and second metal frame respectively, longitudinal prestressed reinforcement is located in the side of transverse prestressed reinforcement, the application utilizes connecting mechanism to implement preliminary external force buffering to steel plate shear wall, if stronger, then utilize connecting metal, longitudinal prestressed reinforcement and transverse prestressed reinforcement to carry out more deep level buffering, by multilayer buffering setting, it can guarantee the self-recovery performance of shear wall.

Description

Technical Field

[0001] This invention relates to the field of structural engineering technology, specifically to a steel plate shear wall and a structural calculation and analysis method. Background Technology

[0002] Shear walls are walls in buildings or structures that primarily bear horizontal and vertical loads caused by wind or earthquakes, preventing structural shear failure. They are a type of seismic wall. Shear walls need sufficient ductility when under bending conditions, so they should be tall and slender. If a shear wall is too long, it will become a low and wide shear wall, which will be susceptible to shear failure. Shear walls are brittle and not conducive to earthquake resistance. Therefore, when continuous shear walls on the same axis are too long, the floor slab or small bridge is divided into several wall segments. Each wall segment can be a single wall, a small-opening wall, or a coupled wall.

[0003] Patent application number 202111382984.0 discloses a high-strength steel plate shear wall and specifically discloses a solution to the problem that when the steel plate wall changes, a new frame needs to be customized for installation, resulting in the waste of the original frame. Therefore, the above-mentioned document adopts abutment blocks and rotating rods. The two abutment blocks abut against the rotating joints of the two first rods and the two rotating joints of the two second rods, respectively. At the same time, since the other ends of the first rods and the other ends of the second rods are slidably connected to the corresponding unit grooves, the first rods and the second rods are fully spread apart, so that the first rods and the second rods can stably support the various positions of the formed frame, thereby increasing the overall structural strength of the frame.

[0004] However, the framework disclosed in the above documents only applies to a single wall. When the wall is a coupled wall, that is, when acting on a coupled wall, the framework is stretched and will press against the part connected to the coupled wall, causing the coupled wall to deform. Moreover, the compression on the coupled wall will not easily disappear. Therefore, how to ensure the self-restoring performance of the shear wall or how to transfer the pressure on the coupled wall are important research directions. Summary of the Invention

[0005] The purpose of this invention is to provide a steel plate shear wall and a structural calculation and analysis method.

[0006] The technical problem solved by this invention is: when the frame is applied to the connecting wall, the frame is stretched and will press against the part connected to the connecting wall, causing the connecting wall to deform. Furthermore, due to the deformation of the frame, the pressure on the connecting wall will not easily disappear, thus solving the problem that the pressure on the connecting wall cannot be easily transferred.

[0007] The present invention can be achieved by the following technical solution: a steel plate shear wall, including a first metal frame and a second metal frame, the first metal frame and the second metal frame are connected by a connecting mechanism, the connecting mechanism includes a connecting metal, longitudinal prestressed steel bars and transverse prestressed steel bars, the two ends of the connecting metal are fixedly connected to the first metal frame and the second metal frame respectively, the two ends of the transverse prestressed steel bars are fixedly connected to the first metal frame and the second metal frame respectively, and the longitudinal prestressed steel bars are located on the side of the transverse prestressed steel bars.

[0008] A further technical improvement of the present invention is that: a fixed base is fixed on both sides of the first metal frame and the second metal frame respectively, and a first partition and a second partition are respectively installed on the fixed base, and the two ends of the longitudinal prestressed steel bars are respectively installed on the first partition and the second partition.

[0009] A further technical improvement of the present invention is that: a first mounting seat and a second mounting seat are provided on the sides of both the first metal frame and the second metal frame, and the transverse prestressed steel bars are connected to the first mounting seat and the second mounting seat by concrete pouring.

[0010] A further technical improvement of the present invention is that: the first metal frame and the second metal frame have the same structure, a connecting groove is provided on the side of the first metal frame, an mounting ear is provided on the side wall of the first metal frame, a prestressed metal mounting plate is installed on the mounting ear, the prestressed metal mounting plate and the connecting metal form a casting groove, a first casting port is opened at the top of the first metal frame, and the output end of the first casting port is connected to the casting groove.

[0011] A further technical improvement of the present invention is that: the internal structures of the first metal frame and the second metal frame are the same, a metal mechanism is provided inside the first metal frame, the metal mechanism includes a first substrate and a second substrate, the first substrate and the second substrate are symmetrically arranged, and multiple sets of transverse steel bars and longitudinal steel bars are provided on the first substrate.

[0012] A further technical improvement of the present invention is that: a first connecting groove is uniformly provided on the first substrate, a second connecting groove is uniformly provided on the second substrate, a connecting bolt passes through the first connecting groove and the end of the connecting bolt passes into the interior of the second connecting groove, a connecting nut is threaded on the connecting bolt and the connecting nut is located inside the second connecting groove.

[0013] A further technical improvement of the present invention is that: a steel bar groove is provided on the opposite side of the first substrate and the second substrate, and the transverse steel bars inside the frame are installed inside the steel bar groove. Several sets of longitudinal grooves are opened on both the first substrate and the second substrate, and the longitudinal steel bars inside the frame are installed inside the longitudinal grooves.

[0014] A further technical improvement of the present invention is that the first substrate and the second substrate are made of steel plates.

[0015] A structural calculation and analysis method for steel plate shear walls includes the following steps:

[0016] Step 1: Measure the thickness of the steel plate shear wall inside the first metal frame as tw, measure the net height He of the steel plate shear wall inside the first metal frame, and measure the net width Le of the steel plate shear wall inside the first metal frame.

[0017] Step 2: Simplify the steel plate shear wall inside the first metal frame. Simplify the steel plate shear wall inside the first metal frame into steel tie rods to obtain the number of steel tie rods n2.

[0018] Step 3: Using the formula The lateral forces acting on the steel plate shear wall within the first metal frame are obtained.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. This application discloses a steel plate shear wall, which utilizes the coupled wall portion of the steel plate shear wall, divided into two parts: a first metal frame and a second metal frame. The first and second metal frames are connected by a connecting mechanism, which provides initial external force buffering for the steel plate shear wall. Specifically, the connecting metal provides buffering during strong seismic events. If the seismic energy is even stronger, deeper buffering is achieved using the connecting metal, longitudinal prestressed steel bars, and transverse prestressed steel bars, thus enabling multi-stage buffering. The orientation buffers the seismic energy. Through multi-layered buffering, the self-restoring performance of the shear wall can be guaranteed. In this application, if the coupled wall is compressed, it can be buffered by the connecting mechanism to ensure the stability of the first metal frame and the second metal frame. When the seismic energy is greater, the first metal frame and the second metal frame can provide further buffering. Specifically, the connecting metal will knock open the prestressed metal mounting plate. At this time, the connecting metal will return to straight. Then, the first metal frame and the second metal frame are used for buffering. That is, the longitudinal steel bars and transverse steel bars in the frame are used to achieve the seismic resistance of the shear wall.

[0021] 2. In the overall stress analysis and calculation of the first metal frame 1 and the second metal frame 3, this application simplifies the mathematical model by equating the steel plate shear wall with a steel tie rod, that is, by using the formula... By obtaining the lateral force borne by the steel plate, the first and second metal frames can be analyzed as a whole, which facilitates the construction of the shear wall. Attached Figure Description

[0022] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0024] Figure 2 This is a schematic diagram showing the location of the connecting mechanism of the present invention;

[0025] Figure 3 This is a schematic diagram showing the position of the fixed base of the present invention;

[0026] Figure 4 This is a schematic diagram showing the location of the connecting metal in this invention;

[0027] Figure 5 For the present invention Figure 4 A magnified view of a section at point A in the middle;

[0028] Figure 6 This is a schematic diagram of the internal structure of the first frame of the present invention;

[0029] Figure 7 This is a calculation model diagram of the steel plate shear wall structure of the present invention.

[0030] In the diagram: 1. First metal frame; 2. Connecting mechanism; 3. Second metal frame; 21. Fixed base; 22. First pouring port; 23. Second partition; 24. Second pouring port; 25. Mounting side lug; 26. Mounting bolt; 27. First partition; 28. Pouring groove; 29. ​​Prestressed metal mounting plate; 210. First mounting seat; 211. Second mounting seat; 212. Connecting metal; 213. Transverse prestressed steel bar; 214. Longitudinal prestressed steel bar; 215. First connecting groove; 216. Connecting bolt; 217. Longitudinal groove; 218. Longitudinal steel bar inside the frame; 219. Second connecting groove; 220. Connecting nut; 221. Steel bar groove; 222. Transverse steel bar inside the frame; 223. First base plate; 224. Second base plate. Detailed Implementation

[0031] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0032] Please see Figure 1-7 As shown, a steel plate shear wall includes a first metal frame 1 and a second metal frame 3, wherein the first metal frame 1 and the second metal frame 3 are connected by a connecting mechanism 2. In this application, the connecting mechanism 2 can initially buffer seismic energy. The first metal frame 1 and the second metal frame 3 are respectively two parts of the coupled wall, ensuring the self-recovery capability of the coupled wall.

[0033] Specifically, the connecting mechanism 2 includes a fixed base 21, a first partition 27, and a second partition 23. The fixed base 21 is installed on both sides of the first metal frame 1 and the second metal frame 3. The first partition 27 and the second partition 23 are respectively installed on the fixed base 21, forming a cavity. A connecting metal 212, transverse prestressed steel bars 213, and longitudinal prestressed steel bars 214 are installed in the cavity to buffer the stress between the connected first metal frame 1 and the second metal frame 3. Specifically, the connecting metal 212 is a sheet-like metal sheet that connects the first metal frame 1 and the second metal frame 3, including but not limited to... Made of steel, the connecting metal 212 is used to buffer stress when deformation occurs. However, if a strong earthquake occurs, the connecting metal 212 alone cannot guarantee the stability of the shear wall. Therefore, multiple sets of longitudinal prestressed steel bars 214 and transverse prestressed steel bars 213 are set on the outside of the connecting metal 212. During strong earthquakes or when the shear wall compresses the coupled wall, the longitudinal prestressed steel bars 214 or transverse prestressed steel bars 213 can be used to buffer stress. The densely distributed transverse prestressed steel bars 213 and longitudinal prestressed steel bars 214 ensure that the coupled wall has high self-restoring performance and relatively stable recovery.

[0034] To ensure stable installation of the transverse prestressed steel bars 213 and the longitudinal prestressed steel bars 214, this application also includes a first mounting base 210 and a second mounting base 211. Multiple sets of first mounting bases 210 and second mounting bases 211 are provided on the sides of the first metal frame 1 and the second metal frame 3. The first mounting bases 210 and second mounting bases 211 are connected to the transverse prestressed steel bars 213 by pouring concrete. That is, the first mounting bases 210 and second mounting bases 211 fix the transverse prestressed steel bars 213 between the first metal frame 1 and the second metal frame 3 by pouring concrete. The transverse prestressed steel bars 213 are fixed between the second partition plate 23 and the first partition plate 27 by pouring concrete. The two ends of the longitudinal prestressed steel bars 214 are respectively installed on the first partition plate 27 and the second partition plate 23.

[0035] There is a connecting groove on the side of the first metal frame 1 and the second metal frame 3. A prestressed metal mounting plate 29 is provided on the inner side of both the first metal frame 1 and the second metal frame 3 to further buffer the stress of the connecting metal 212. That is, taking the first metal frame 1 as an example, a mounting lug 25 is fixed on the inner wall of the first metal frame 1, and the prestressed metal mounting plate 29 is installed and fixed by mounting bolts 26. The prestressed metal mounting plate 29 is set on the connecting groove to cover the connecting groove. When the connecting metal 212 is placed on the side of the connecting groove, the connecting metal 212 and the prestressed metal mounting plate 29 form a pouring groove 28 to realize the fixed connection between the prestressed metal mounting plate 29 and the connecting metal 212. Therefore, a first pouring port 22 is provided at the top of the first metal frame 1, and the output end of the first pouring port 22 is connected to the pouring groove 28. A second pouring port 24 is provided at the top of the second metal frame 3 to pour concrete into the pouring groove 28. In this application, when the coupled wall is subjected to external forces, the connecting metal 212 is used to buffer the force. The prestressed metal mounting plate 29 is used to control the initial position, that is, the position of the prestressed metal mounting plate 29 is fixed under the action of the mounting bolts 26. When the connecting metal 212 is deformed by compression, if the force generated by the vibration energy is too large, it will cause the mounting bolts 26 to be squeezed, which may cause the prestressed metal mounting plate 29 to fall off. At this time, the force generated by the vibration energy will act on the interior of the first metal frame 1 and the second metal frame 3 to disperse the force. At this time, the connecting metal 212 will enter the interior of the first metal frame 1 or the second metal frame 3 and affect the interior of the first metal frame 1 or the second metal frame 3. The first metal frame 1 and the second metal frame 3 are used to buffer the force generated by the vibration energy.

[0036] The first metal frame 1 and the second metal frame 3 have the same internal metal structure. Therefore, in this application, the first metal frame 1 is taken as an example. The first metal frame 1 is equipped with relevant components, including a first substrate 223 and a second substrate 224. The first substrate 223 and the second substrate 224 are symmetrically arranged. The first substrate 223 is uniformly provided with a first connecting groove 215, and the second substrate 224 is uniformly provided with a second connecting groove 219. The first connecting groove 215 and the second connecting groove 219 have the same shape. A connecting bolt 216 passes through the bottom of the first connecting groove 215, and a connecting nut 22 rotates in the second connecting groove 219. 0. The connecting nut 220 and the connecting bolt 216 are threaded together to realize the threaded connection of the first base plate 223 and the second base plate 224. In order to realize the function of the shear wall, the reinforcing bar groove 221 is provided on the opposite side of the first base plate 223 and the second base plate 224. The transverse reinforcing bars 222 are installed inside the reinforcing bar groove 221. Several sets of longitudinal grooves 217 are opened on the first base plate 223 and the second base plate 224. The longitudinal reinforcing bars 218 are installed inside the longitudinal grooves 217. The shear wall's seismic resistance is realized by the transverse reinforcing bars 222 and the longitudinal reinforcing bars 218. The first base plate 223 and the second base plate 224 are made of steel plate.

[0037] A structural calculation and analysis method for a steel plate shear wall requires the establishment of a complex model when calculating the stress of the first metal frame 1 as a whole. The calculation process is complicated and time-consuming, which can affect the accuracy of the results. Therefore, in order to ensure the timeliness of the calculation of the first metal frame 1, this application adopts the following method for calculation.

[0038] This application equates the steel plate shear wall to a steel tie rod, simplifying the mathematical model setup, as detailed below:

[0039] First, simplify the first metal frame 1 into a steel tie rod model, that is, use the formula:

[0040]

[0041] Specifically, tw represents the thickness of the steel plate shear wall; He represents the net height of the steel plate shear wall; Le represents the net width of the steel plate shear wall; and n2 is simplified to the number of steel tie rods. From this, the formula is obtained to determine the stress state of the shear wall structure. Here, A refers to the lateral force on the steel plate. The stress calculation of the steel plate is performed by treating the steel plate as a steel tie rod, thus simplifying the design of the mechanical model. The calculation and analysis can be directly performed using the above formula.

[0042] For example, given tw = 5mm, He = 5000mm, Le = 5800mm, and n2 = 2, we obtain:

[0043]

[0044] Based on the above formula, by equating the steel plate shear wall with a steel tie rod, the calculation method is greatly simplified and has strong timeliness.

[0045] This application discloses a steel plate shear wall, which utilizes the coupled wall portion of the steel plate shear wall, divided into two parts: a first metal frame 1 and a second metal frame 3. The first metal frame 1 and the second metal frame 3 are connected by a connecting mechanism 2. This connecting mechanism 2 provides initial external force buffering for the steel plate shear wall, specifically using the connecting metal 212 for buffering. In the event of a strong seismic event, the connecting metal 212 can provide the first step of buffering. If the seismic energy is even stronger, a deeper level of buffering is achieved using the connecting metal 212, longitudinal prestressed steel bars 214, and transverse prestressed steel bars 213, thereby achieving multi-faceted buffering. The shear wall can be buffered by multiple layers of buffering to ensure its self-healing performance. In this application, if the coupled wall is compressed, it can be buffered by the connecting mechanism 2 to ensure the stability of the first metal frame 1 and the second metal frame 3. When the seismic energy is greater, the first metal frame 1 and the second metal frame 3 can be used for further buffering. Specifically, the connecting metal 212 will break the prestressed metal mounting plate 29. At this time, the connecting metal 212 will return to straight. The first metal frame 1 and the second metal frame 3 are used for buffering. That is, the longitudinal steel bars 218 and the transverse steel bars 222 in the frame are used to achieve the seismic resistance of the shear wall.

[0046] In the overall stress analysis and calculation of the first metal frame 1 and the second metal frame 3, this application simplifies the mathematical model by equating the steel plate shear wall with a steel tie rod, that is, by using the formula... By obtaining the lateral force borne by the steel plate, the first metal frame 1 and the second metal frame 3 can be analyzed as a whole, which makes it easier to obtain the specific lateral force value and to make it easier to adapt the specific placement parameters of the connecting metal 212, the transverse prestressed steel bar 213 and the longitudinal prestressed steel bar 214 involved in the connection mechanism, thereby realizing the construction of the shear wall.

[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A steel plate shear wall, characterized in that: It includes a first metal frame (1) and a second metal frame (3), which are connected by a connecting mechanism (2). The connecting mechanism (2) includes a connecting metal (212), a longitudinal prestressed steel bar (214), and a transverse prestressed steel bar (213). The two ends of the connecting metal (212) are fixedly connected to the first metal frame (1) and the second metal frame (3), respectively. The two ends of the transverse prestressed steel bar (213) are fixedly connected to the first metal frame (1) and the second metal frame (3), respectively. The longitudinal prestressed steel bar (214) is located on the side of the transverse prestressed steel bar (213). The first metal frame (1) and the second metal frame (3) are respectively fixed with a fixed base (21), and a first partition (27) and a second partition (23) are respectively installed on the fixed base (21). The two ends of the longitudinal prestressed steel bar (214) are respectively installed on the first partition (27) and the second partition (23). The first metal frame (1) and the second metal frame (3) are each provided with a first mounting base (210) and a second mounting base (211) on their sides. The transverse prestressed steel bar (213) is connected to the first mounting base (210) and the second mounting base (211) by concrete pouring. The first metal frame (1) and the second metal frame (3) have the same structure. The first metal frame (1) has a connecting groove on its side and a mounting ear (25) on its side wall. A prestressed metal mounting plate (29) is installed on the mounting ear (25). The prestressed metal mounting plate (29) is set on the connecting groove to cover the connecting groove. When the connecting metal (212) is placed on the side of the connecting groove, the prestressed metal mounting plate (29) and the connecting metal (212) form a casting groove (28). The first metal frame (1) has a first casting port (22) at the top. The output end of the first casting port (22) is connected to the casting groove (28).

2. A steel plate shear wall according to claim 1, characterized in that, The first metal frame (1) and the second metal frame (3) have the same internal structure. The first metal frame (1) is provided with a metal mechanism, which includes a first substrate (223) and a second substrate (224). The first substrate (223) and the second substrate (224) are symmetrically arranged. The first substrate (223) is uniformly provided with a first connecting groove (215), and the second substrate (224) is uniformly provided with a second connecting groove (219). A connecting bolt (216) passes through the first connecting groove (215) and the end of the connecting bolt (216) is inserted into the second connecting groove (219). A connecting nut (220) is threaded on the connecting bolt (216) and the connecting nut (220) is located inside the second connecting groove (219). The first substrate (223) and the second substrate (224) have a steel bar groove (221) on their opposite sides. The transverse steel bars (222) inside the frame are installed inside the steel bar groove (221). The first substrate (223) and the second substrate (224) each have a number of longitudinal grooves (217). The longitudinal steel bars (218) inside the longitudinal grooves (217) are installed inside the frame.

3. A steel plate shear wall according to claim 2, characterized in that, The first substrate (223) and the second substrate (224) are made of steel plates.

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