A design method of a large stiffness steel plate wall with adjustable stiffness

Abstract

A design method for a high-stiffness steel plate wall with adjustable stiffness includes: Step 1, designing the structure, wherein the high-stiffness steel plate wall comprises corrugated steel plates, edge members, and a stiffness adjustment layer. The edge members are disposed at both ends of the corrugated steel plates, and the stiffness adjustment layer is disposed on one side of the corrugated steel plates, with a gap between the edge members; Step 2, designing an algorithm for adjusting and determining the component parameters of the high-stiffness steel plate wall. In application, the cost is controlled by adjusting and controlling the thickness of the corrugated steel plates, reducing processing difficulty and improving efficiency. Furthermore, the high-stiffness steel plate wall can provide greater lateral stiffness for the structure under frequent earthquakes and greater energy dissipation capacity for the structure under design earthquakes and rare earthquakes, thereby reducing the seismic response of the structure under frequent, design, and rare earthquakes and improving the seismic safety of the structure. The high-stiffness steel plate wall designed in this application uses thinner corrugated steel plates, is easier to process, more economical, and has a wider range of applications.

Description

Technical Field

[0001] This application relates to the field of building engineering technology, and more specifically, to a design method for a high-rigidity steel plate wall with adjustable stiffness. Background Technology

[0002] Non-buckling corrugated steel plate walls have high lateral stiffness and good energy dissipation capacity, making them a good replacement for load-bearing and energy-dissipating components such as buckling-restrained braces. At the same time, steel plate walls have the advantage of flexible layout, which can solve the problem of not being able to place BRBs at building openings. Therefore, non-buckling corrugated steel plate walls are increasingly used in projects.

[0003] However, in some projects, the structural requirements for the lateral stiffness of the non-buckling corrugated steel plate walls are too high, resulting in the corrugated steel plates needing to be 20mm, 25mm, or even 30mm thick. Bending steel plates of this thickness is extremely difficult; ordinary bending machines cannot meet the requirements, necessitating special processes. This significantly increases processing difficulty and cost, thus creating considerable obstacles to the application and promotion of this type of new technology. Summary of the Invention

[0004] To address the aforementioned technical problems, this application proposes a high-stiffness steel plate wall with adjustable stiffness and its design method. On one hand, this application utilizes the combined steel plate wall structure by incorporating components such as concrete slabs on one side of the corrugated steel plate wall, thereby increasing the elastic stiffness of the steel plate wall under minor earthquakes. For the same stiffness, the thickness of the corrugated steel plate can be reduced by half. Furthermore, by employing lightweight concrete and elongated holes in the stud connections, under moderate to major earthquakes, the concrete slabs and other components cease to resist lateral forces, providing only out-of-plane constraints for the corrugated steel plate, thus ensuring the wall's energy dissipation capacity. On the other hand, by designing and adjusting the thickness or in-plane and out-of-plane stiffness of stiffness-enhancing components such as concrete slabs, this application not only achieves high stiffness of the steel plate wall but also enables its stiffness to be adjustable.

[0005] Technical solution:

[0006] A design method for high-stiffness steel plate walls with adjustable stiffness, characterized by:

[0007] Step 1, Design and Construction

[0008] The high-rigidity steel plate wall is designed as follows: it includes a corrugated steel plate 2, an edge member 3, and a stiffness adjustment layer 1; wherein, the edge member 3 is disposed at both ends of the corrugated steel plate 2, and the stiffness adjustment layer 1 is disposed on one side of the corrugated steel plate 2, with a gap 4 between it and the edge member 3.

[0009] Step 2, Design the algorithm

[0010] The design algorithm is used to adjust and determine the component parameters of high-rigidity steel plate walls. In application, the thickness of the corrugated steel plate is adjusted and controlled (with the goal of thinning) to control costs, reduce processing difficulty and improve efficiency. Furthermore, high-rigidity steel plate walls can provide greater lateral stiffness to the structure under frequent earthquakes and greater energy dissipation capacity under design earthquakes or rare earthquakes, thereby reducing the seismic response of the structure under frequent, design, and rare earthquakes and improving the seismic safety of the structure.

[0011] Specifically, in step 1:

[0012] The stiffness adjustment layer includes a main body and several connecting node units; wherein, the connecting node unit includes short channel steel, connectors, and lightweight concrete, and is connected to the corrugated steel plate through the connectors and short channel steel; specifically:

[0013] The short channel steel is inverted on the corrugated steel plate, with a sliding hole in the center and its two ends fixed in the main body of the stiffness adjustment layer.

[0014] The bottom of the connector is fixed to the corrugated steel plate, and its upper part passes through and is confined in the sliding hole of the short channel steel.

[0015] The lightweight concrete is poured at the connector and the short channel steel to fix the connector and the short channel steel together.

[0016] The main body of the stiffness adjustment layer can be a component with large in-plane and out-of-plane stiffness, such as a concrete slab or a steel box plate. By changing the thickness of the stiffness adjustment layer, its lateral stiffness and out-of-plane stiffness can be changed, thereby meeting the lateral stiffness requirements and the elastic-plastic buckling resistance requirements of the corrugated steel plate.

[0017] Specifically, step 2 of the algorithm includes the following steps:

[0018] S2.1 Optimizing the thickness t of the stiffness adjustment layer c

[0019] Based on the lateral stiffness requirements and the design method for the lateral stiffness of corrugated steel plate walls under the action of composite walls, the thickness of the required stiffness adjustment layer is determined.

[0020] S2.1.1 Select an initial value as the thickness t of the stiffness adjustment layer. c ;

[0021] S2.1.2 Calculate the equivalent corrugated steel plate thickness corresponding to the high-rigidity steel plate wall. The equivalent corrugated steel plate thickness t′ is shown in Equation (1):

[0022]

[0023] In the formula, t s t represents the thickness of the corrugated steel plate. c E represents the thickness of the stiffness adjustment layer.c E represents the elastic modulus of concrete. s This refers to the elastic modulus of steel.

[0024] S2.1.3 Using the equivalent corrugated steel plate thickness obtained in step S2.1.2, calculate the lateral stiffness of the high-stiffness steel plate wall according to formula (2); determine whether the calculated lateral stiffness value of the high-stiffness steel plate wall meets the lateral stiffness requirement. If it does, the final thickness of the stiffness adjustment layer is t. c Otherwise, adjust the thickness t of the stiffness adjustment layer according to the deviation from the lateral stiffness requirement. c If the value is the same, repeat steps S2.1.2 and S2.1.3;

[0025]

[0026] In the formula, K represents the lateral stiffness of the high-stiffness steel plate wall; n represents the number of corrugated steel plate corrugations; K s K represents the shear stiffness of the corrugated steel plate wall. d K represents the torsional stiffness of the corrugated steel plate wall. m This refers to the bending stiffness of the corrugated steel plate wall.

[0027] S2.2 Verify the stability of the entire wall after the stiffness adjustment layer is set under minor earthquakes. The buckling bearing capacity design formula of the wall is shown in (3). If equation (3-1) is not satisfied, then increase t under the condition of satisfying the lateral stiffness requirement. c The value satisfies equation (3-1).

[0028]

[0029] Q′ crp Q y (3-1)

[0030] Among them, Q′ crp The buckling bearing capacity of the entire wall; D′ x 、D′ y 、D′ xy Q represents the bending stiffness and torsional stiffness of a single corrugated plate around the x-axis and y-axis, respectively, after being equivalent to Equation (1); a and b represent the width and height of the corrugated steel plate, respectively; y The yield bearing capacity of a high-rigidity steel plate wall.

[0031] S2.3 Verify whether the stiffness adjustment layer meets the out-of-plane stiffness requirements under moderate and severe earthquakes, so that the corrugated steel plate wall will not undergo elastoplastic buckling. At this time, the design verification formula for the buckling bearing capacity of the high-stiffness steel plate wall is shown in (4); if formula (4-1) is not satisfied, then t is increased further under the condition of meeting the lateral stiffness requirements. c The value satisfies equation (4-1).

[0032]

[0033] Q′ crp Q u (4-1)

[0034] Among them, D x D y D xy D represents the bending stiffness and torsional stiffness of a single corrugated steel plate around the x-axis and y-axis, respectively, without the equivalent of equation (1); xc D yc D xyc Q represents the bending stiffness and torsional stiffness of a single wave of the stiffness adjustment layer around the x-axis and y-axis, respectively. u This represents the ultimate bearing capacity of a high-rigidity steel plate wall.

[0035] S2.4 Based on the bearing capacity design of lightweight concrete, as shown in Equation (5), the timing of failure of lightweight concrete is designed so that the corrugated steel plate wall and stiffness adjustment layer jointly resist the side under minor earthquakes, and the stiffness adjustment layer withdraws from resisting the side under moderate or major earthquakes, only providing out-of-plane constraints for the corrugated steel plate wall, and providing and ensuring the performance of the steel plate wall in dissipating the seismic input structural energy.

[0036]

[0037] Where V is the shear force on the studs or bolts when the steel plate wall yields; n f Number of studs or bolts; A s E' is the cross-sectional area of ​​the stud or bolt; c f is the elastic modulus of lightweight concrete. c This refers to the compressive strength of lightweight concrete.

[0038] Advantages and benefits of this application:

[0039] 1. The high-rigidity steel plate wall with adjustable stiffness designed using the method of this application has a stiffness adjustment layer, which allows the thickness of the corrugated steel plate to be reduced and controlled within the range that ordinary bending machines can bend. Therefore, the cost of the steel plate wall is lower and the processing is more efficient.

[0040] 2. The high-rigidity steel plate wall with adjustable stiffness designed using the method of this application can achieve high stiffness and adjustable stiffness by changing the thickness or in-plane and out-of-plane stiffness of the stiffness-adjusting layer stiffness-enhancing component, thus making the application range of this technology wider, especially for engineering projects with high requirements for lateral stiffness. Attached Figure Description

[0041] Figure 1 A schematic diagram of the three-dimensional overall perspective of a high-rigidity steel plate wall with adjustable stiffness designed according to the method of this application.

[0042] Figure 2 This is a side cross-sectional view of a high-rigidity steel plate wall with adjustable stiffness, as shown in Embodiment 1 of this application.

[0043] Figure 3 for Figure 1 A partially enlarged schematic diagram of the connection node unit of the medium stiffness adjustment layer.

[0044] Figure 4 The algorithm flowchart for this application is designed.

[0045] Figure 5 This is a flowchart for optimizing the stiffness adjustment layer thickness in the algorithm designed in this application.

[0046] Figure label:

[0047] Stiffness adjustment layer 1, connection node unit 1-1, short channel steel 1-1-1, connector 1-1-2, lightweight concrete 1-1-3, main body 1-2, ordinary concrete 1-2-1;

[0048] Corrugated steel plate 2;

[0049] Edge component 3;

[0050] Gap 4. Detailed Implementation

[0051] The method proposed in this application designs a steel plate wall with adjustable stiffness. Under the premise of the same stiffness, the required corrugated steel plate is thinner, the processing difficulty is lower, and the economy is better. At the same time, by changing the thickness of the stiffness adjustment layer such as the concrete slab, the steel plate wall can achieve high stiffness and adjustable stiffness, thus making the application range of this technology wider, especially for engineering projects with high requirements for lateral stiffness.

[0052] The technical solutions provided in this application will be further described below with reference to specific embodiments and accompanying drawings. The advantages and features of this application will become clearer from the following description.

[0053] A design method for high-stiffness steel plate walls with adjustable stiffness includes:

[0054] Step 1, Design and Construction

[0055] The high-rigidity steel plate wall is designed as follows: it includes a corrugated steel plate 2, edge members 3, and a stiffness adjustment layer 1; wherein, the edge members 3 are disposed at both ends of the corrugated steel plate 2, and the stiffness adjustment layer 1 is disposed on one side of the corrugated steel plate 2, with a gap 4 between them. Figure 1 As shown.

[0056] Step 2, Design the algorithm

[0057] This algorithm is used to adjust and determine the component parameters in high-rigidity steel plate walls, thereby controlling costs and improving processing efficiency by adjusting and controlling the thickness of the corrugated steel plate (with the goal of thinning). Furthermore, the high-rigidity steel plate walls remain intact under frequent earthquakes but fail under designed earthquakes or even rare earthquakes. Figure 4 As shown.

[0058] Specifically, in step 1:

[0059] The stiffness adjustment layer includes a main body and several connecting node units; wherein, the connecting node unit includes short channel steel, connectors, and lightweight concrete, and is connected to the corrugated steel plate through the connectors and short channel steel; specifically:

[0060] The short channel steel is inverted on the corrugated steel plate, with a sliding hole in the center and its two ends fixed in the main body of the stiffness adjustment layer.

[0061] The bottom of the connector is fixed to the corrugated steel plate, and its upper part passes through and is confined in the sliding hole of the short channel steel.

[0062] The lightweight concrete is poured at the connector and the short channel steel to fix the connector and the short channel steel together.

[0063] The main body of the stiffness adjustment layer can be a component with large in-plane and out-of-plane stiffness, such as a concrete slab or a steel box plate. By changing the thickness of the stiffness adjustment layer, its lateral stiffness and out-of-plane stiffness can be changed, thereby meeting the lateral stiffness requirements and the elastic-plastic buckling resistance requirements of the corrugated steel plate.

[0064] Specifically, step 2 of the algorithm includes the following steps:

[0065] S2.1 Optimizing the thickness t of the stiffness adjustment layer c

[0066] Based on the lateral stiffness requirements and the design method for the lateral stiffness of corrugated steel plate walls under composite wall action, the required thickness of stiffness adjustment layer 1 is determined. The process for optimizing the thickness of the stiffness adjustment layer is as follows: Figure 5 As shown, the specific steps are as follows:

[0067] S2.1.1 Select an initial value as the thickness t of the stiffness adjustment layer. c ;

[0068] S2.1.2 Calculate the equivalent corrugated steel plate thickness corresponding to the high-rigidity steel plate wall. The equivalent corrugated steel plate thickness t′ is shown in Equation (1):

[0069]

[0070] In the formula, t s t represents the thickness of the corrugated steel plate. c E represents the thickness of the stiffness adjustment layer. cE represents the elastic modulus of concrete. s This refers to the elastic modulus of steel.

[0071] S2.1.3 Using the equivalent corrugated steel plate thickness obtained in step S2.1.2, calculate the lateral stiffness of the high-stiffness steel plate wall according to formula (2); determine whether the calculated lateral stiffness value of the high-stiffness steel plate wall meets the lateral stiffness requirement. If it does, the final thickness of the stiffness adjustment layer is t. c Otherwise, adjust the thickness t of the stiffness adjustment layer according to the deviation from the lateral stiffness requirement. c If the value is the same, repeat steps S2.1.2 and S2.1.3;

[0072]

[0073] In the formula, K represents the lateral stiffness of the high-stiffness steel plate wall; n represents the number of corrugated steel plate corrugations; K s K represents the shear stiffness of the corrugated steel plate wall. d K represents the torsional stiffness of the corrugated steel plate wall. m This refers to the bending stiffness of the corrugated steel plate wall.

[0074] As an example, and not a limitation, when the absolute value of the lateral stiffness of the obtained high-stiffness steel plate wall is less than 5% (<=5%) of the relative error between the lateral stiffness value and the lateral stiffness requirement, it is considered to meet the lateral stiffness requirement.

[0075] S2.2 Verify the stability of the entire wall after the stiffness adjustment layer 1 is set under minor earthquakes. The buckling bearing capacity design formula of the wall is shown in (3). If equation (3-1) is not satisfied, then increase t under the condition of satisfying the lateral stiffness requirement. c The value satisfies equation (3-1).

[0076]

[0077] Q′ crp Q y (3-1)

[0078] Among them, Q′ crp The buckling bearing capacity of the entire wall; D′ x 、D′ y 、D′ xy Q represents the bending stiffness and torsional stiffness of a single corrugated plate around the x-axis and y-axis, respectively, after being equivalent to Equation (1); a and b represent the width and height of the corrugated steel plate, respectively; y The yield bearing capacity of a high-rigidity steel plate wall.

[0079] S2.3 Verify whether the stiffness adjustment layer meets the out-of-plane stiffness requirements under moderate and severe earthquakes, so that the corrugated steel plate wall will not undergo elastoplastic buckling. At this time, the design formula for the buckling bearing capacity of the high-stiffness steel plate wall is shown in (4); if formula (4-1) is not satisfied, then t is increased further under the condition of meeting the lateral stiffness requirements. c The value satisfies equation (4-1).

[0080]

[0081] Q′ crp Q u (4-1)

[0082] Among them, D x D y D xy D represents the bending stiffness and torsional stiffness of a single corrugated steel plate around the x-axis and y-axis, respectively, without the equivalent of equation (1); xc D yc D xyc The bending stiffness and torsional stiffness of a single wave around the x-axis and y-axis of stiffness adjustment layer 1, respectively, are Q. u This represents the ultimate bearing capacity of a high-rigidity steel plate wall.

[0083] S2.4 Based on the bearing capacity design of lightweight concrete, as shown in Equation (5), the timing of failure of lightweight concrete is designed so that the corrugated steel plate wall and stiffness adjustment layer 1 jointly resist the side under minor earthquakes, and the stiffness adjustment layer withdraws from resisting the side under moderate or major earthquakes, only providing out-of-plane constraints for the corrugated steel plate wall, and providing and ensuring the performance of the steel plate wall in dissipating the seismic input structural energy.

[0084]

[0085] Where V is the shear force on the studs or bolts when the steel plate wall yields; n f Number of studs or bolts; A s E' is the cross-sectional area of ​​the stud or bolt; c f is the elastic modulus of lightweight concrete. c This refers to the compressive strength of lightweight concrete.

[0086] Example

[0087] like Figure 1 As shown, the present invention provides a high-rigidity steel plate wall with adjustable stiffness, which comprises a corrugated steel plate 2, an edge member 3, and a stiffness adjustment layer 1. The edge member 3 is disposed at both ends of the corrugated steel plate 2, and the stiffness adjustment layer 1 is disposed on one side of the corrugated steel plate 2, with a gap 4 between the edge member 3 to satisfy the interlayer displacement deformation of the structure.

[0088] like Figure 2 , Figure 3 As shown, the stiffness adjustment layer 1 includes a main body 1-2 and several connecting node units 1-1; wherein,

[0089] The connecting node unit 1-1 includes a short channel steel 1-1-1, a connector 1-1-2, and lightweight concrete 1-1-3. The stiffness adjustment layer 1 is connected to the corrugated steel plate 2 through the connector 1-1-2 and the short channel steel 1-1-1; specifically:

[0090] The short channel steel 1-1-1 is inverted on the corrugated steel plate 2, with a sliding hole 1-1-1-1 in the center, and its two ends are fixed in the main body of the stiffness adjustment layer.

[0091] The bottom of the connector 1-1-2 is fixed to the corrugated steel plate 2, and its upper part passes through and is confined in the sliding hole 1-1-1-1 of the short channel steel 1-1-1;

[0092] The lightweight concrete 1-1-3 is poured at the connector 1-1-2 and the short channel steel 1-1-1, fixing the connector 1-1-2 and the short channel steel 1-1-1 together.

[0093] Furthermore, such as Figure 3 As shown, the short channel steel 1-1-1 is upside down on the corrugated steel plate 2, and an elongated hole is opened in the middle of the back as a sliding hole so that the connector 1-1-2 can slide back and forth in it. The two ends of each short channel steel 1-1-1 are fixed in the main body of the stiffness adjustment layer 1, and the sliding hole 1-1-1-1 in the middle is fixed in the lightweight concrete 1-1-3.

[0094] The main body 1-2 of the stiffness adjustment layer 1 is made of concrete slab, and ordinary concrete 1-2-1 is poured inside. Each short channel steel 1-1-1 is fixed at both ends in the ordinary concrete 1-2-1 of the stiffness adjustment layer 1.

[0095] Furthermore, the short channel steel can also be replaced by double angle steel.

[0096] Furthermore, such as Figure 2 As shown, the connector 1-1-2 can be a bolt or a traditional stud. As an example, and not a limitation, the bottom of the connector 1-1-2 is welded and fixed to one side of the corrugated steel plate 2, and the other end is screwed onto the short channel steel 1-1-1 by a nut and fixed in the lightweight concrete 1-1-3 inside the stiffness adjustment layer 1.

[0097] Furthermore, the strength, thickness, and other parameters of the lightweight concrete 1-1-3 must ensure that it provides greater lateral stiffness under frequent earthquakes and can provide greater energy dissipation capacity for the structure under design earthquakes or even rare earthquakes.

[0098] The stiffness adjustment layer is mainly used to address the stiffness requirements of steel plate walls. By employing the stiffness adjustment layer, the required thickness of the corrugated steel plate can be reduced, which solves the processing problem of the corrugated steel plate and reduces the cost of the steel plate wall, thus facilitating the promotion and application of this new technology.

[0099] In implementation, the stiffness adjustment layer is only installed on the outer side of the corrugated steel plate and is connected only to the corrugated steel plate via bolts and other connectors, as well as short channel steel. It is not connected to the surrounding beams, columns, or edge members. The gap between the boundary of the stiffness adjustment layer and the surrounding beams and edge members must satisfy the deformation space required for a 1 / 50 angle of inter-story drift, thus preventing damage from compression collisions between the stiffness adjustment layer and the edge members. The stiffness adjustment layer has a certain in-plane and out-of-plane stiffness, and its thickness is determined according to the lateral stiffness requirements of the steel plate wall. The stiffness of the steel plate wall can be adjusted according to the thickness of the stiffness adjustment layer. By changing the thickness of the stiffness adjustment layer, its lateral stiffness and out-of-plane stiffness are altered, thereby satisfying both the lateral stiffness requirements and the elasto-plastic buckling resistance requirements of the corrugated steel plate.

[0100] The high-rigidity steel plate wall with adjustable stiffness proposed in this application is applicable to different structural systems such as steel structures and reinforced concrete structures, as well as new construction and reinforcement / renovation projects, and has a wide range of applications.

[0101] The working mechanism of the high-rigidity steel plate wall is as follows:

[0102] When the structure is subjected to frequent earthquakes, the lightweight concrete does not fail, and the connector 1-1-2 is tightly connected to the short channel steel 1-1-1. Therefore, the corrugated steel plate 2 is tightly connected to the stiffness adjustment layer 1, and no relative slippage occurs. The stiffness adjustment layer 1 and the corrugated steel plate 2 jointly resist lateral forces, resulting in high stiffness. When the structure is subjected to a design earthquake or even a rare earthquake, the lightweight concrete 1-1-3 fails, and horizontal relative displacement can occur between the stiffness adjustment layer and the corrugated steel plate. The connector 1-1-2 slides in the oblong sliding hole of the short channel steel 1-1-1, and the stiffness adjustment layer 1 withdraws from resisting lateral forces. The lateral stiffness of the steel plate wall is only provided by the corrugated steel plate 2, and the stiffness adjustment layer only provides out-of-plane constraints for the corrugated steel plate. The out-of-plane stiffness of the stiffness adjustment layer ensures that the corrugated steel plate does not buckle out-of-plane, thus ensuring the energy dissipation performance of the steel plate wall under seismic action.

[0103] This application makes breakthroughs in the following key technologies: the structure and design of the stiffness adjustment layer; and the realization of the failure mechanism of lightweight concrete.

[0104] The adjustable stiffness high-rigidity steel plate wall designed in this application uses thinner corrugated steel plates, which are easier to process and more economical. At the same time, by changing the thickness of stiffness adjustment layers such as concrete slabs, the high stiffness of the steel plate wall and the adjustable stiffness function are achieved, thus making the application range of this technology wider, especially for engineering projects with high requirements for lateral stiffness.

[0105] The above description is merely a description of preferred embodiments of this application and is not intended to limit the scope of this application in any way. Any changes or modifications made by those skilled in the art based on the above-disclosed technical content should be considered as equivalent and valid embodiments and fall within the scope of protection of the technical solution of this application.

Claims

1. A design method for a high-stiffness steel plate wall with adjustable stiffness, characterized in that, Step 1, Design and Construction The high-rigidity steel plate wall is designed as follows: including a corrugated steel plate (2), an edge member (3), and a stiffness adjustment layer (1); wherein, the edge member (3) is disposed at both ends of the corrugated steel plate (2), and the stiffness adjustment layer (1) is disposed on one side of the corrugated steel plate (2), with a gap (4) between it and the edge member (3); Step 2, Design the algorithm The design algorithm is used to adjust and determine the component parameters of the high-stiffness steel plate wall. In application, the cost is controlled by adjusting and controlling the thickness of the corrugated steel plate, and the lateral stiffness provided by the high-stiffness steel plate wall to the structure under frequent earthquakes, and the energy dissipation capacity provided to the structure under design earthquakes or rare earthquakes, thereby reducing the seismic response of the structure under frequent, design, and rare earthquakes. Step 2 specifically includes the following steps: S2.1 Optimizing the thickness t of the stiffness adjustment layer c Based on the lateral stiffness requirements and the lateral stiffness design method of corrugated steel plate walls under the action of composite walls, the thickness of the required stiffness adjustment layer (1) is determined; specifically including: S2.1.1 Select an initial value as the thickness t of the stiffness adjustment layer. c ; S2.1.2 Calculate the equivalent corrugated steel plate thickness corresponding to the high-stiffness steel plate wall. As shown in equation (1): (1) In the formula, t s t represents the thickness of the corrugated steel plate. c E represents the thickness of the stiffness adjustment layer. c E represents the elastic modulus of concrete. s The elastic modulus of steel; S2.1.3 Using the equivalent corrugated steel plate thickness obtained in step S2.1.2, calculate the lateral stiffness of the high-stiffness steel plate wall according to formula (2); determine whether the calculated lateral stiffness value of the high-stiffness steel plate wall meets the lateral stiffness requirement. If it does, the final thickness of the stiffness adjustment layer is t. c Otherwise, adjust the thickness t of the stiffness adjustment layer according to the deviation from the lateral stiffness requirement. c If the value is the same, repeat steps S2.1.2 and S2.1.3; (2) In the formula, K represents the lateral stiffness of the high-stiffness steel plate wall; n represents the number of corrugated steel plate corrugations; K s K represents the shear stiffness of the corrugated steel plate wall. d K represents the torsional stiffness of the corrugated steel plate wall. m The bending stiffness of the corrugated steel plate wall; S2.2 Verification of the stability of the entire wall after the stiffness adjustment layer (1) is set under minor earthquakes. The buckling bearing capacity design formula of the wall is shown in (3). If formula (3-1) is not satisfied, then increase the stiffness under the condition of meeting the lateral stiffness requirements. t c The value satisfies equation (3-1); （3） > Q y （3-1） in, The buckling load capacity of the entire wall; , , These are the bending stiffness and torsional stiffness of a single corrugated plate around the x-axis and y-axis, respectively, after being equivalent to Equation (1); a and b are the width and height of the corrugated steel plate, respectively. Q y The yield bearing capacity of a high-rigidity steel plate wall; S2.3 Verify whether the stiffness adjustment layer meets the out-of-plane stiffness requirements under moderate and severe earthquakes, so that the corrugated steel plate wall will not buckle elastically and plastically; the design verification formula for the buckling bearing capacity of the high-stiffness steel plate wall is shown in (4); if formula (4-1) is not satisfied, then continue to increase the stiffness under the condition of meeting the lateral stiffness requirements. t c The value satisfies equation (4-1); （4） > Q u （4-1） Where Dx, Dy, and Dxy are the bending stiffness and torsional stiffness of a single corrugated steel plate around the x-axis and y-axis, respectively, without the equivalent of equation (1); Dxc, Dyc, and Dxyc are the bending stiffness and torsional stiffness of a single corrugated steel plate around the x-axis and y-axis, respectively, of the stiffness adjustment layer (1). Q u This represents the ultimate bearing capacity of a high-rigidity steel plate wall. S2.4 According to the bearing capacity design of lightweight concrete, as shown in Equation (5), the timing of failure of lightweight concrete is designed so that the corrugated steel plate wall and stiffness adjustment layer (1) jointly resist the side under minor earthquakes, and the stiffness adjustment layer withdraws from resisting the side under moderate or major earthquakes, only providing out-of-plane constraints for the corrugated steel plate wall, and providing and ensuring the performance of the steel plate wall in dissipating the seismic input structural energy. （5） Where V is the shear force on the studs or bolts when the steel plate wall yields; n f Number of studs or bolts; A s The cross-sectional area of ​​the stud or bolt; f is the elastic modulus of lightweight concrete. c This refers to the compressive strength of lightweight concrete.

2. The design method for a high-stiffness steel plate wall with adjustable stiffness as described in claim 1, characterized in that, In step 1: The stiffness adjustment layer (1) includes a main body (1-2) and several connecting node units (1-1); wherein, The connecting node unit (1-1) includes a short channel steel (1-1-1), a connector (1-1-2), and lightweight concrete (1-1-3), and is connected to the corrugated steel plate (2) through the connector (1-1-2) and the short channel steel (1-1-1); specifically: The short channel steel (1-1-1) is upside down on the corrugated steel plate (2), and a sliding hole (1-1-1-1) is provided in the center of it, and its two ends are fixed in the main body of the stiffness adjustment layer; The bottom of the connector (1-1-2) is fixed to the corrugated steel plate (2), and its upper part passes through and is confined in the sliding hole (1-1-1-1) of the short channel steel (1-1-1). The lightweight concrete (1-1-3) is poured at the connector (1-1-2) and the short channel steel (1-1-1) to fix the connector (1-1-2) and the short channel steel (1-1-1) together.

3. The design method for a high-rigidity steel plate wall with adjustable stiffness as described in claim 2, characterized in that, The short channel steel (1-1-1) is inverted on the corrugated steel plate, and an elongated hole is opened in the middle of the back of the limb as a sliding hole so that the connector (1-1-2) can slide back and forth in it; Both ends of each short channel steel (1-1-1) are fixed in the main body of the stiffness adjustment layer (1), and the sliding hole in the middle is fixed in the lightweight concrete (1-1-3).

4. The design method for a high-rigidity steel plate wall with adjustable stiffness as described in claim 2, characterized in that, The main body (1-2) of the stiffness adjustment layer (1) is made of concrete slab, and ordinary concrete (1-2-1) is poured inside. Each short channel steel (1-1-1) is fixed at both ends in the ordinary concrete (1-2-1) of the stiffness adjustment layer (1).

5. The design method for a high-stiffness steel plate wall with adjustable stiffness as described in claim 2, characterized in that, The connector (1-1-2) is made of bolts or traditional studs; the bottom of the connector (1-1-2) is welded and fixed to one side of the corrugated steel plate (2), and the other end is screwed onto the short channel steel (1-1-1) by a nut and fixed in the lightweight concrete (1-1-3) inside the stiffness adjustment layer (1).

6. The design method for a high-stiffness steel plate wall with adjustable stiffness as described in claim 2, characterized in that, The strength and stiffness adjustment layer thickness parameters of the lightweight concrete can control the lateral stiffness it provides to the structure under frequent earthquakes and the energy dissipation capacity it provides to the structure under design earthquakes and rare earthquakes.

7. The design method for a high-stiffness steel plate wall with adjustable stiffness as described in claim 1, characterized in that, In step 2, if the absolute value of the relative error between the obtained lateral stiffness value of the high-stiffness steel plate wall and the lateral stiffness requirement is less than or equal to 5%, then the lateral stiffness requirement is met.

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