A frame structure topology optimization design method and system based on seismic performance requirements

Abstract

The application relates to the field of building anti-seismic technology and discloses a frame structure topology optimization design method and system based on anti-seismic performance requirements, which optimizes and calculates the materials, sizes and installation modes of a transverse support device, a top frame device and a vertical support device through a size topology optimization system, a data analysis system and an installation system, selects optimal size materials of the transverse support device, the top frame and the vertical support device through topology optimization, and makes the support device stable in an earthquake; the roof inclined plate can be fixed, the safety and the anti-seismic performance of the structure are guaranteed, multiple structures support the cross beams, the buildings can be stably supported, the energy of the seismic wave can be relieved, and the overall anti-seismic stability and reliability are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building anti-seismic technology, and particularly relates to a frame structure topology optimization design method and system based on anti-seismic performance requirements. BACKGROUND

[0002] There are about 15,000 earthquakes occurring around the world every day, often causing casualties, and the reinforced concrete frame structure is one of the most common building structure forms in industrial and civil buildings. The building structure refers to the structure as a whole supported by various structures in the building. The node plays a role in distributing internal forces, coordinating component deformation, and maintaining the integrity of the structure in the structure bearing system. However, the existing building anti-seismic frame structure has the problem of poor anti-seismic effect, and topology optimization is an appearance optimization technology developed based on the principles of mathematical topology. The goal is to seek the best use of materials by the object. To achieve this goal, the optimal value is obtained under the given constraint condition. Topology optimization generally takes the distribution function of materials on the object as the optimization parameter, and does not need to give an explicit definition of the optimization parameter. Because the optimization of variables only needs to give the objective function of the structure description, and then selects the state variable from the predetermined criterion set, topology optimization can be divided into size optimization, shape optimization, and topography optimization. The anti-seismic building or support in the prior art is built and installed by using specific materials or sizes and processes, and the materials, sizes, and installation methods are not optimized, which leads to the problem of inaccurate parameters and mutual cooperation. It leads to poor performance in anti-seismic. SUMMARY

[0003] The purpose of the present application is to provide a frame structure topology optimization design method and system based on anti-seismic performance requirements, which can solve the problems raised in the background art.

[0004] A frame structure topology optimization design system based on anti-seismic performance requirements, comprising a size topology optimization system, a data analysis system, and an installation system.

[0005] Further, the size optimization system performs topology optimization on the size of the frame, and transmits the optimized data to the data analysis system. The data analysis system analyzes the optimized data and selects the manufacturing of the frame according to the analyzed data.

[0006] Further, the installation system comprises a horizontal support device, a top frame device, and a vertical support device. The top frame device is arranged at the upper end of the horizontal support device. The vertical support device vertically supports the horizontal support device.

[0007] Further, the transverse support device comprises a crossbeam, the upper surface of the crossbeam is fixedly connected with a support block, the top of the support block is fixedly connected with a support seat, the top end of the support seat is fixedly connected with a straight rod, the two sides of the crossbeam are fixedly connected with support columns, and the surface of the support columns is fixedly connected with frames.

[0008] Further, the size optimization system optimizes the materials, sizes and installation modes of the crossbeam, the support seat and the support columns, sets the types of the materials of the crossbeam, the support seat and the support columns as Φ1, Φ2, Φ3,..., Φ N , sets the instantaneous impact strength of the crossbeam, the support seat and the support columns as P0, observes the deformation sizes of the materials after the impact of the instantaneous impact strength, and selects the material with the smallest deformation size as the manufacturing material.

[0009] Further, the length of the crossbeam is set as X0, the length of the crossbeam to the two sides of the support columns is X0 / 2, the height of the two sides of the support columns is set as H0, and (X0 / 2) 2 ×H0 / (1+H0)=K1 is calculated through the size optimization system, and different k1 values are calculated by setting different values of the length X0 / 2 of the crossbeam to the support columns and the height H0 of the support columns.

[0010] Further, the top frame device comprises an inclined plate fixedly connected to the upper surface of the frame, the surface of the inclined plate is fixedly connected with a connecting plate, the two sides of the inclined plate are provided with through holes, the through holes are inserted with bolts, the outer part of the bolts is sleeved with connecting pieces, and one end of the bolt is threadedly connected with a nut.

[0011] Further, the vertical support device comprises a support plate fixedly connected to the lower surface of the crossbeam, the bottom end of the support plate is fixedly connected with a support rod, the surface of the support rod is fixedly connected with a connecting rod, and the outer part of the support rod is sleeved with a clamp.

[0012] Further, the size optimization system optimizes the materials, sizes and installation modes of the frame and the inclined plate, sets the types of the materials of the frame and the inclined plate as Φ1, Φ2, Φ3,..., Φ N ; the instantaneous impact strength of the crossbeam, the support seat and the support columns is set as P0, the deformation sizes of the materials after the impact of the instantaneous impact strength are observed, and the material with the smallest deformation size is selected as the manufacturing material.

[0013] Further, the size optimization system optimizes the materials and sizes of the vertical support device, and the types of the materials of the support plate and the support rod of the vertical support device are Φ1, Φ2, Φ3,..., Φ NThe instantaneous impact strength of the cross beam, the support base and the support column is set as P0, the deformation size of each material after being impacted by the instantaneous impact strength is observed, and the material with the smallest deformation size is selected as the manufacturing material.

[0014] Further, the length of the support rod is set as U1, and the optimal value of U1 is calculated by an optimization algorithm.

[0015] Further, the inside of the hoop is threadedly connected with a threaded rod, the surface of the threaded rod is fixedly connected with a handle, the outside of the threaded rod is sleeved with a connecting rod and an extension rod, the bottom end of the support rod is fixedly connected with a support base, the four corners of the support base are fixedly connected with cross plates, one side of the cross plate is fixedly connected with a sleeve, the inside of the sleeve is inserted with a vertical rod, and the bottom end of the vertical rod is fixedly connected with a base.

[0016] Further, one side of the support base is fixedly connected with an inclined rod, and one end of the inclined rod is fixedly connected with a straight rod.

[0017] Further, one end of the connecting rod is rotatably connected with the surface of the extension rod.

[0018] Further, the outside of the sleeve is provided with a hole, and the inside of the hole is threadedly connected with a fixing bolt.

[0019] Further, the number of the cross plates is four, and the four cross plates are fixedly connected at the four corners of the support base in a rectangular array.

[0020] Further, the number of the straight rods is several, and the adjacent two straight rods are fixedly connected through a reinforcing rod, the number of the reinforcing rods is two, and the two reinforcing rods are crossed and fixedly connected through a fixing sheet.

[0021] Further, the upper surface of the straight rod is fixedly connected with a support rod, and the bottom end of the support rod is fixedly connected with the straight rod through a screw.

[0022] Further, one end of the connecting rod is fixedly connected with a second hoop, and the surface of the second hoop is threadedly connected with a control bolt.

[0023] Further, the number of the connecting rods is several, and the adjacent two connecting rods are arranged in a triangular shape.

[0024] The beneficial effects of the present application are as follows:

[0025] 1. The size topology optimization system, data analysis system and installation system are set to optimize and calculate the material, size and installation mode of the horizontal support device, top frame device and vertical support device, the optimal size and material of the horizontal support device, top frame and vertical support device are selected through topology optimization, so that the support device can be stably supported in an earthquake.

[0026] 2. The steel member is connected by high-strength bolts, a plurality of bolts, connecting pieces, nuts and connecting plates can fix the roof inclined plate, guarantee the safety and seismic performance of the structure, and the multiple structures support the cross beam, which can stably support the building and relieve the energy of the seismic wave, and is beneficial to improve the overall seismic stability and reliability.

[0027] 3. The connecting rod, clamp, threaded rod, handle, connecting rod, telescopic rod, support seat, cross plate, sleeve, vertical rod and base are set, which can provide greater space flexibility and higher lateral force resistance, the steel member is connected by high-strength bolts or welding connection, which can ensure that the structure will not be damaged due to connection failure in an earthquake, and the support rods on both sides and the double fixation on both sides of the support rods can consume seismic energy and improve the overall seismic performance of the building frame structure, further enhance the support effect of the roof beam on the basis of the original support structure, improve the seismic performance, and the building structure frame is not tightly connected with the ground, which can effectively buffer the damage of the seismic wave to the building structure frame, effectively protect the safety of people and reduce property loss. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Figure 1 The structural schematic diagram of the present application;

[0030] Figure 2 The structural schematic diagram of the support rod of the present application;

[0031] Figure 3 The front view structural schematic diagram of the present application;

[0032] Figure 4 The structural schematic diagram of the present application Figure 1 The enlarged structural schematic diagram of A in the present application;

[0033] Figure 5 For the application Figure 1 Amplification structure schematic diagram at B in the application

[0034] Figure 6 For the application Figure 2 Amplification structure schematic diagram at C in the application

[0035] Figure 7 For the size diagram of the transverse support device

[0036] Figure 8 For the size diagram of the top frame device

[0037] In the figure, 1, crossbeam; 2, support block; 3, support base; 4, straight pole; 5, support column; 6, frame; 7, inclined plate; 8, connecting plate; 9, bolt; 10, connecting piece; 11, nut; 12, support plate; 13, support pole; 14, connecting pole; 15, clamp; 16, threaded pole; 17, handle; 18, connecting rod; 19, telescopic pole; 20, support base; 21, cross plate; 22, sleeve; 23, vertical pole; 24, base; 25, inclined pole; 26, reinforcing pole; 27, fixed sheet; 28, support pole; 29, second clamp; 30, control bolt. DETAILED DESCRIPTION

[0038] The technical solutions of the present application will be described clearly and completely below in combination with specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0039] Reference Figures 1-8The application discloses a framework structure topology optimization design system based on seismic performance requirements, which comprises a size topology optimization system, a data analysis system and an installation system. The size optimization system performs topology optimization on the size of the framework, and transmits the optimized data to the data analysis system. The data analysis system analyzes the optimized data and selects the manufacturing of the framework according to the analyzed data. The installation system comprises a horizontal support device, a top framework device and a vertical support device. The top framework device is arranged at the upper end of the horizontal support device. The vertical support device vertically supports the horizontal support device. The horizontal support device comprises a horizontal beam 1. The upper surface of the horizontal beam 1 is fixedly connected with a support block 2. The top of the support block 2 is fixedly connected with a support seat 3. The horizontal support device adopts a framework-support structure system, can provide large space flexibility and high lateral force resistance, the connection of steel members adopts high-strength bolts or welding connection, can ensure that the structure is not damaged due to connection failure in an earthquake, and can consume seismic energy through the support rods 13 arranged on both sides and the double fixation of the support rods 13 on both sides, improve the seismic performance of the whole building framework structure, and the building structure framework is not tightly connected with the ground, can effectively buffer the damage of seismic waves to the building structure framework. One side of the support seat 3 is fixedly connected with an inclined rod 25. One end of the inclined rod 25 is fixedly connected with a straight rod 4. The number of the straight rods 4 is several. The several straight rods 2 are fixedly connected with each other through reinforcing rods 26. The number of the reinforcing rods 26 is two. The two reinforcing rods 26 are crossed with each other and fixedly connected through a fixing sheet 27. The upper surface of the straight rod 4 is fixedly connected with a support rod 28. The bottom end of the support rod 28 is fixedly connected with the straight rod 4 through a screw. The top end of the support seat 3 is fixedly connected with the straight rod 4. The two sides of the horizontal beam 1 are fixedly connected with support columns 5. The surface of the support column 5 is fixedly connected with a framework 6. The upper surface of the framework 6 is fixedly connected with an inclined plate 7. The surface of the inclined plate 7 is fixedly connected with a connecting plate 8. The two sides of the inclined plate 7 are both provided with through holes. Bolts 9 are inserted into the through holes. The outer part of the bolt 9 is sleeved with a connecting piece 10. One end of the bolt 9 is threadedly connected with a nut 11. The lower surface of the horizontal beam 1 is fixedly connected with a support plate 12. The bottom end of the support plate 12 is fixedly connected with a support rod 13. The surface of the support rod 13 is fixedly connected with connecting rods 14. The number of the connecting rods 14 is several. The several connecting rods 14 and the plurality of support rods 13 are arranged in a triangular shape. The outer part of the support rod 13 is sleeved with a clamp 15. The inner part of the clamp 15 is threadedly connected with a threaded rod 16. The surface of the threaded rod 16 is fixedly connected with a handle 17. The outer part of the threaded rod 16 is sleeved with a connecting rod 18 and an extension rod 19. One end of the connecting rod 18 is fixedly connected with a second clamp 29. The surface of the second clamp 29 is threadedly connected with a control bolt 30. One end of the connecting rod 18 is rotatably connected with the surface of the extension rod 19. The bottom end of the support rod 13 is fixedly connected with a support seat 20. The connection of the steel members adopts high-strength bolt connection. The plurality of bolts 9, the connecting piece 10, the nut 11 and the connecting plate 8 can fix the roof inclined plate 7, guarantee the safety and seismic performance of the structure, and the multiple structures support the horizontal beam 1.The building can be stably supported, the energy of the earthquake wave can be relieved, the overall anti-seismic stability and reliability can be improved, larger space flexibility and higher lateral force resistance can be provided, four corners of the support base 20 are fixedly connected with four horizontal plates 21, the four horizontal plates 21 are fixedly connected at the four corners of the support base 20 in a rectangular array, one side of the horizontal plate 21 is fixedly connected with a sleeve 22, a hole is formed in the outer portion of the sleeve 22, a fixing bolt is threadedly connected in the hole, a vertical rod 23 is inserted into the sleeve 22, and a base 24 is fixedly connected to the bottom end of the vertical rod 23.

[0040] Also includes a frame structure topology optimization design method based on seismic performance requirements, comprising the following steps: step one: size optimization system to beam, support seat, support column material, size, installation mode optimization, set the type of beam, support seat, support column material is Φ1, Φ2, Φ3 Φ N ; set the instantaneous impact strength of the beam, support seat, support column is P0, observe the deformation size of each material after being impacted by the instantaneous impact strength, select the material with the smallest deformation size as the manufacturing material;

[0041] Set the length of the beam as X0, then the length of the beam to the two side support columns is X0 / 2, set the height of the two side support columns as H0, then calculate (X0 / 2) 2 ×H0 / (1+H0)=K1, by setting different values of the length X0 / 2 of the beam to the support column and the height H0 of the support column to calculate different k1 values;

[0042] When different K1 values are recorded, set the impact strength of the lateral support device as P1, at this time P1 is a fixed value, then satisfy Where t0 and t1 are the start time and end time of the impact strength, and A1 and A2 are standard values analyzed according to the previous building seismic strength, when the K1 value calculated by the size optimization system is within this range, the size of the beam and the support column can be optimized, the appropriate X0 and H0 values can be selected, and the lateral support device can be installed and manufactured together with the appropriate material.

[0043] Step two: optimize the material, size and installation mode of the frame and the inclined plate through the size optimization system, set the type of the material of the frame and the inclined plate as Φ1, Φ2, Φ3 Φ N ; set the instantaneous impact strength of the beam, support seat, support column as P0, observe the deformation size of each material after being impacted by the instantaneous impact strength, select the material with the smallest deformation size as the manufacturing material;

[0044] The length of the frame is L1, the width is L2, the angle between the frame and the inclined plate is theta, the size optimization system is used to calculate (L1*L2) / (L1+L2)=K2, different K2 values are calculated according to different L1 and L2 values, the intensity of the impact on the transverse support device is set as P1, at this time P1 is a fixed value, then the following conditions are met At the same time, K2 / (L1*sin theta) > 1.5 is met; under the condition of meeting the above conditions, appropriate L1, L2 and theta values are selected to manufacture and install the top frame device.

[0045] Step three: the material and size of the vertical support device are optimized through the size optimization system, the material types of the support plate and the support rod of the vertical support device are Phi1, Phi2, Phi3,..., Phi N The instantaneous impact intensity of the cross beam, the support seat and the support column is set as P0, the deformation size of each material after being impacted by the instantaneous impact intensity is observed, and the material with the smallest deformation size is selected as the manufacturing material.

[0046] The length of the support rod is set as U1, and the optimal value of U1 is calculated through an optimization algorithm.

[0047] In the application, the steel member is connected by high-strength bolts, and the plurality of bolts 9, connecting pieces 10, nuts 11 and connecting plates 8 can fix the roof inclined plate 7, guarantee the safety and seismic performance of the structure, and the multiple structures support the cross beam 1, which can stably support the building and relieve the energy of the seismic wave, is beneficial to improve the overall seismic stability and reliability, can provide greater spatial flexibility and higher lateral force resistance, the connection of the steel member adopts high-strength bolts or welding connection, which ensures that the structure will not be damaged due to connection failure in an earthquake, and the support rods and the double fixation on both sides of the support rods are arranged to consume the seismic energy and improve the overall seismic performance of the building frame structure, which further enhances the support effect of the top beam on the basis of the original support structure, improves the seismic performance, and the building structure frame is not tightly connected with the ground, which can effectively buffer the damage of the seismic wave to the building structure frame, effectively guarantee the safety of people's lives and reduce property losses.

Claims

1. A topology optimization design system for a frame structure based on seismic performance requirements, comprising a dimensional topology optimization system, a data analysis system, and an installation system. The dimensional optimization system performs topology optimization on the frame dimensions and transmits the optimized data to the data analysis system. The data analysis system analyzes the optimized data and selects the frame manufacturing method based on the analyzed data. The installation system includes a transverse support device, a top frame device, and a vertical support device. The top frame device is located above the transverse support device. The vertical support device provides vertical support to the transverse support device. The transverse support device includes a beam, a support block fixedly connected to the upper surface of the beam, a support seat fixedly connected to the top of the support block, a straight rod fixedly connected to the top of the support seat, and support columns fixedly connected to both sides of the beam. A frame is fixedly connected to the surface of the support columns. The top frame device includes a frame fixedly connected to the upper surface of the frame. An inclined plate has a connecting plate fixedly connected to its surface. Through holes are formed on both sides of the inclined plate, and bolts are inserted into the through holes. Connecting parts are sleeved around the bolts, and a nut is threaded onto one end of each bolt. A vertical support device includes a support plate fixedly connected to the lower surface of the crossbeam. A support rod is fixedly connected to the bottom end of the support plate. A connecting rod is fixedly connected to the surface of the support rod, and a clamp is sleeved around the support rod. A threaded rod is threaded into the clamp, and a handle is fixedly connected to the surface of the threaded rod. A connecting rod and a telescopic rod are sleeved around the threaded rod. A support base is fixedly connected to the bottom end of the support rod. Horizontal plates are fixedly connected to the four corners of the support base. A sleeve is fixedly connected to one side of the horizontal plate, and a vertical rod is inserted into the sleeve. A base is fixedly connected to the bottom end of the vertical rod. A size optimization system optimizes the materials and dimensions of the vertical support device.

2. The design system according to claim 1, characterized in that: A diagonal rod is fixedly connected to one side of the support base. One end of the diagonal rod is fixedly connected to a straight rod, and one end of the connecting rod is rotatably connected to the surface of the telescopic rod.

3. The design system according to claim 2, characterized in that: The sleeve has holes on its outside, and the holes are threaded with fixing bolts. There are four horizontal plates, and the four horizontal plates are fixedly connected to the four corners of the support base in a rectangular array.

4. The design system according to claim 3, characterized in that: The number of straight rods is several, and each pair of straight rods is fixedly connected by reinforcing rods. There are two reinforcing rods, which cross each other and are fixedly connected by fixing plates. A support rod is fixedly connected to the upper surface of each straight rod, and the bottom end of the support rod is fixedly connected to the straight rod by screws.

5. The design system according to claim 4, characterized in that: One end of the connecting rod is fixedly connected to a second clamp, and the surface of the second clamp is threaded with a control bolt. There are several connecting rods, and the several connecting rods and multiple support rods are arranged in a triangle.

6. It also includes a method for topology optimization based on the frame structure topology optimization design system according to any one of claims 1-5, comprising the following steps: Step 1: The size optimization system optimizes the material, size, and installation method of the beams, supports, and columns, setting the material types of the beams, supports, and columns to Φ1, Φ2, Φ3...Φ N Set the instantaneous impact intensity of the beam, support base, and support column to P0, observe the deformation size of each material after being subjected to the instantaneous impact intensity, and select the material with the smallest deformation size as the manufacturing material. If the length of the crossbeam is set to X0, then the length from the crossbeam to the two side support columns is X0 / 2. If the height of the two side support columns is set to H0, then (X0 / 2) is calculated using the size optimization system. 2 ×H0 / (1+H0)=K1, different k1 values ​​are calculated by setting different values ​​of the length X0 / 2 from the beam to the support column and the height H0 of the support column.

7. The topology optimization method according to claim 6, characterized in that: Step Two: Optimize the materials, dimensions, and installation methods of the frame and inclined plates using the size optimization system, setting the material types of the frame and inclined plates to Φ1, Φ2, Φ3...Φ N Set the instantaneous impact intensity of the beam, support base, and support column to P0, observe the deformation size of each material after being subjected to the instantaneous impact intensity, and select the material with the smallest deformation size as the manufacturing material.

8. The topology optimization method according to claim 7, characterized in that: The materials and dimensions of the vertical support device are optimized using a size optimization system. The material types of the support plate and support rod of the vertical support device are Φ1, Φ2, Φ3...Φ N Set the instantaneous impact intensity of the beam, support base, and support column to P0, observe the deformation size of each material after being subjected to the instantaneous impact intensity, and select the material with the smallest deformation size as the manufacturing material; set the length of the support rod to U1, and calculate the optimal value of U1 through an optimization algorithm.

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