Frame structure topological optimization design method and system based on seismic performance requirements

Abstract

The invention relates to the technical field of building seismic resistance, and discloses a frame structure topological optimization design method and system based on seismic performance requirements. Materials, sizes and installation modes of a transverse supporting device, a top frame device and a vertical supporting device are optimized and calculated by arranging a size topological optimization system, a data analysis system and an installation system, and optimal size material optimal values of the optimal transverse supporting device, the optimal top frame device and the optimal vertical supporting device are selected through topological optimization; the supporting device can be stably supported in an earthquake; the roof inclined plate can be fixed, the safety and anti-seismic performance of the structure are guaranteed, the cross beam is supported through multiple structures, a building can be stably supported, the energy of seismic waves can be relieved, and the overall anti-seismic stability and reliability can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of building earthquake resistance, and particularly relates to a frame structure topology optimization design method and system based on earthquake resistance performance requirements. Background Art

[0002] There are about more than 15,000 earthquakes occurring globally every day, often causing casualties. Reinforced concrete frame structures are one of the most common building structure forms in industrial and civil buildings. A building structure refers to the overall structure formed by various structures in a building to support it. Nodes play a role in distributing internal forces, coordinating member deformations, and maintaining the integrity of the structure in the structural load-bearing system. However, the existing building earthquake-resistant frame structures currently have the problem of poor earthquake resistance. Topology optimization is an external shape optimization technology developed based on the principles of mathematical topology. Its goal is to seek the best utilization of materials for an object. To meet the requirements of this goal, under given constraints, an optimal value is obtained. Topology optimization generally takes the distribution function of materials on an object as an optimization parameter, without the need to give an explicit definition of the optimization parameter. Because for the optimization of variables, only the objective function of the structural description needs to be given, and then the state variables are selected from a pre-determined set of criteria. Topology optimization can be divided into optimizing dimensions, shapes, and morphologies. In the prior art, earthquake-resistant buildings or supports are all constructed and installed using specific materials, dimensions, and processes, and they do not optimize materials, dimensions, and installation methods, which leads to inaccuracies in each parameter and problems in their mutual cooperation, resulting in poor performance during earthquake resistance. Summary of the Invention

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

[0004] A frame structure topology optimization design system based on earthquake resistance performance requirements includes a dimension topology optimization system, a data analysis system, and an installation system.

[0005] Furthermore, the dimension optimization system performs topology optimization on the dimensions of the frame, transmits the optimized data to the data analysis system, and the data analysis system analyzes the optimized data and makes a manufacturing selection for the frame based on the analyzed data.

[0006] Furthermore, the installation system includes a lateral support device, a top frame device, and a vertical support device; the top frame device is arranged at the upper end of the lateral support device; the vertical support device vertically supports the lateral support device.

[0007] Further, the horizontal support device includes a cross beam, a support block is fixedly connected to the upper surface of the cross beam, a support seat is fixedly connected to the top of the support block, a straight rod is fixedly connected to the top end of the support seat, support columns are fixedly connected to both sides of the cross beam, and a frame is fixedly connected to the surface of the support columns.

[0008] Further, the size optimization system optimizes the materials, sizes, and installation methods of the cross beam, support seat, and support columns, and sets the material types of the cross beam, support seat, and support columns to Φ1, Φ2, Φ3........Φ N ; set the instantaneous impact strength of the cross beam, support seat, and support columns to P0, observe the deformation sizes of each material after being impacted by the instantaneous impact strength, and select the material with the smallest deformation size as the manufacturing material.

[0009] Further, set the length of the cross beam to X0, then the lengths from the cross beam to the support columns on both sides are X0 / 2, set the heights of the support columns on both sides to H0, then calculate (X0 / 2) 2 ×H0 / (1 + H0) = K1 through the size optimization system, and calculate different k1 values by setting different values of the length X0 / 2 from the cross beam to the support columns and the height H0 of the support columns.

[0010] Further, the top frame device includes a sloping plate fixedly connected to the upper surface of the frame, a connecting plate is fixedly connected to the surface of the sloping plate, through holes are formed on both sides of the sloping plate, bolts are inserted into the through holes, connecting pieces are sleeved on the outer parts of the bolts, and nuts are threadedly connected to one ends of the bolts.

[0011] Further, the vertical support device includes a support plate fixedly connected to the lower surface of the cross beam, 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 on the outer part of the support rod.

[0012] Further, the size optimization system optimizes the materials, sizes, and installation methods of the frame and the sloping plate, and sets the material types of the frame and the sloping plate to Φ1, Φ2, Φ3........Φ N ; set the instantaneous impact strength of the cross beam, support seat, and support columns to P0, observe the deformation sizes of each material after being impacted by the instantaneous impact strength, and select the material with the smallest deformation size as the manufacturing material.

[0013] Further, the size optimization system optimizes the materials and sizes of the vertical support device, and the material types of the support plate and the support rod of the vertical support device are Φ1, Φ2, Φ3........Φ N; Set the instantaneous impact strength on the cross beam, support seat, and support column to P0, observe the deformation sizes of each material after being impacted by the instantaneous impact strength, and select the material with the smallest deformation size as the manufacturing material.

[0014] Further, set the length of the support rod to U1, and calculate the optimal value of U1 through an optimization algorithm.

[0015] Further, a threaded rod is internally threaded in the clamp, a handle is fixedly connected to the surface of the threaded rod, a connecting rod and a telescopic rod are sleeved outside the threaded rod, a support seat is fixedly connected to the bottom end of the support rod, cross plates are fixedly connected to the four corners of the support seat, a sleeve is fixedly connected to one side of the cross plate, a vertical rod is inserted into the sleeve, and a base is fixedly connected to the bottom end of the vertical rod.

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

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

[0018] Further, holes are formed outside the sleeve, and fixing bolts are threadedly connected inside the holes.

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

[0020] Further, the number of the straight rods is several, and all of them are fixedly connected by strengthening rods. The number of the strengthening rods is two, and the two strengthening rods cross each other and are fixedly connected by fixing pieces.

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

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

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

[0024] The beneficial effects of the present invention are:

[0025] 1. The present invention optimizes and calculates the materials, dimensions, and installation methods of the lateral support device, top frame device, and vertical support device by setting up a size topology optimization system, a data analysis system, and an installation system. Through topology optimization, the optimal values of the dimensions and materials of the lateral support device, top frame, and vertical support device are selected, enabling the support device to provide stable support during an earthquake.

[0026] 2. In the present invention, by setting a cross beam, support blocks, support seats, straight rods, support columns, frames, inclined plates, connecting plates, bolts, connecting pieces, nuts, and support plates, the connection of steel components is achieved using high-strength bolts. Multiple bolts, connecting pieces, nuts, and connecting plates can fix the roof inclined plate, ensuring the safety and seismic performance of the structure. Moreover, multiple structures support the cross beam, which can not only stably support the building but also relieve the energy of seismic waves, facilitating the improvement of the overall seismic stability and reliability.

[0027] 3. In the present invention, by setting connecting rods, clamps, threaded rods, handles, connecting rods, telescopic rods, support seats, cross plates, sleeves, vertical rods, and bases, a large spatial flexibility and a high lateral force resistance capacity can be provided. The connection of steel components is achieved using high-strength bolts or welding, ensuring that the structure will not be damaged due to connection failure during an earthquake. Additionally, support rods are set on both sides and double fixation on both sides of the support rods is used to consume seismic energy, improving the overall seismic performance of the building frame structure. On the basis of the original support structure, the support effect on the top beam is further enhanced, improving the seismic performance. Moreover, the building structure frame is not tightly connected to the ground, which can effectively buffer the damage of seismic waves to the building structure frame, effectively ensuring people's lives and reducing property losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0029] Figure 1 is a schematic structural diagram of the present invention;

[0030] Figure 2 is a schematic structural diagram of the support rod of the present invention;

[0031] Figure 3 is a front view structural diagram of the present invention;

[0032] Figure 4 is the present invention Figure 1 is an enlarged structural diagram at A in the present invention;

[0033] Figure 5 For the present invention Figure 1 Schematic diagram of the enlarged structure at position B in the present invention;

[0034] Figure 6 For the present invention Figure 2 Schematic diagram of the enlarged structure at position C in the present invention.

[0035] Figure 7 Dimension diagram of the lateral support device.

[0036] Figure 8 Dimension diagram of the top frame device.

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

[0038] The technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the scope of protection of the present invention.

[0039] Refer to Figure 1-8, A frame structure topology optimization design system based on seismic performance requirements, including 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 frame and transmits the optimized data to the data analysis system. The data analysis system analyzes the optimized data and makes manufacturing selections for the frame based on the analyzed data. The installation system includes a lateral support device, a top frame device, and a vertical support device; the top frame device is arranged at the upper end of the lateral support device; the vertical support device vertically supports the lateral support device; it includes a cross beam 1, a support block 2 is fixedly connected to the upper surface of the cross beam 1, a support seat 3 is fixedly connected to the top of the support block 2. Adopting a frame-brace structural system can provide greater spatial flexibility and higher lateral force resistance. The connection of steel components uses high-strength bolts or welding connections to ensure that the structure will not be damaged due to connection failure during an earthquake. And support rods 13 are arranged on both sides and double fixation on both sides of the support rods 13 are used to dissipate seismic energy, improving the overall seismic performance of the building frame structure. And the building structure frame is not tightly connected to the ground, which can effectively buffer the damage of seismic waves to the building structure frame. One side of the support seat 3 is fixedly connected to an inclined rod 25, one end of the inclined rod 25 is fixedly connected to a straight rod 4, the number of straight rods 4 is several, and all of the several are fixedly connected to each other by strengthening rods 26. The number of strengthening rods 26 is two, and the two strengthening rods 26 cross each other and are fixedly connected by a fixing piece 27. A support rod 28 is fixedly connected to the upper surface of the straight rod 4, and the bottom end of the support rod 28 is fixedly connected to the straight rod 4 by a screw. The top end of the support seat 3 is fixedly connected to a straight rod 4. Support columns 5 are fixedly connected to both sides of the cross beam 1, a frame 6 is fixedly connected to the surface of the support column 5, an inclined plate 7 is fixedly connected to the upper surface of the frame 6, a connecting plate 8 is fixedly connected to the surface of the inclined plate 7, through holes are opened on both sides of the inclined plate 7, bolts 9 are inserted into the interiors of the through holes, a connecting piece 10 is sleeved on the outside of the bolts 9, and one end of the bolt 9 is threadedly connected to a nut 11. A support plate 12 is fixedly connected to the lower surface of the cross beam 1, a support rod 13 is fixedly connected to the bottom end of the support plate 12, a connecting rod 14 is fixedly connected to the surface of the support rod 13, the number of connecting rods 14 is several, and all of the several connecting rods 14 and multiple support rods 13 are arranged in a triangular pattern. A clamp 15 is sleeved on the outside of the support rod 13, a threaded rod 16 is threadedly connected to the inside of the clamp 15, a handle 17 is fixedly connected to the surface of the threaded rod 16, a connecting rod 18 and a telescopic rod 19 are sleeved on the outside of the threaded rod 16, one end of the connecting rod 18 is fixedly connected to a second clamp 29, a control bolt 30 is threadedly connected to the surface of the second clamp 29, and one end of the connecting rod 18 is rotatably connected to the surface of the telescopic rod 19. A support seat 20 is fixedly connected to the bottom end of the support rod 13. The connection of steel components uses high-strength bolt connections. Multiple bolts 9, connecting pieces 10, nuts 11, and connecting plates 8 can fix the roof inclined plate 7, ensuring the safety and seismic performance of the structure. And multiple structures support the cross beam 1,It can not only stably support the building, but also relieve the energy of seismic waves, which is beneficial to improving the overall seismic stability and reliability. It can provide greater spatial flexibility and higher lateral force resistance capacity. Transverse plates 21 are fixedly connected to the four corners of the support base 20. The number of transverse plates 21 is four, and the four transverse plates 21 are fixedly connected to the four corners of the support base 20 in the form of a rectangular array. A sleeve 22 is fixedly connected to one side of the transverse plate 21. A hole is provided in the outer part of the sleeve 22, and a fixing bolt is threadedly connected inside 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] It also includes a frame structure topology optimization design method based on seismic performance requirements, including the following steps: Step 1: The dimension optimization system optimizes the materials, dimensions, and installation methods of the cross beams, support bases, and support columns. Set the types of materials of the cross beams, support bases, and support columns to Φ1, Φ2, Φ3........Φ N ; Set the instantaneous impact strength of the cross beams, support bases, and support columns to P0, observe the deformation sizes of each material after being impacted by the instantaneous impact strength, and select the material with the smallest deformation size as the manufacturing material;

[0041] Set the length of the cross beam to X0, then the lengths from the cross beam to the two side support columns are X0 / 2. Set the heights of the two side support columns to H0, then calculate (X0 / 2) 2 ×H0 / (1 + H0) = K1 by the dimension optimization system. Calculate different k1 values by setting different values of X0 / 2 (the length from the cross beam to the support column) and H0 (the height of the support column);

[0042] After recording different K1 values, set the impact strength on the lateral support device to 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 based on the previous building seismic strength. When the K1 value calculated by the dimension optimization system is within this range, the optimization of the dimensions of the cross beam and support column can be completed, and appropriate values of X0 and H0 and appropriate materials can be selected for the installation and manufacturing of the lateral support device.

[0043] Step 2: Optimize the materials, dimensions, and installation methods of the frame and the inclined plate through the dimension optimization system. Set the types of materials of the frame and the inclined plate to Φ1, Φ2, Φ3........Φ N ; Set the instantaneous impact strength of the cross beams, support bases, and support columns to P0, observe the deformation sizes of each material after being impacted by the instantaneous impact strength, and select the material with the smallest deformation size as the manufacturing material;

[0044] Set the length of the frame as L1, the width as L2, and the angle between the frame and the inclined plate as θ. Calculate (L1×L2) / (L1+L2) = K2 through the dimension optimization system. Calculate different K2 values according to different L1 and L2 values. Set the impact strength on the lateral support device as P1. At this time, P1 is a fixed value, then it satisfies At the same time, satisfy K2 / (L1×sinθ) > 1.5; select appropriate L1, L2, and θ values to manufacture and install the top frame device under the above conditions.

[0045] Step three: Optimize the materials and dimensions of the vertical support device through the dimension optimization system. The types of materials for the support plate and support rod of the vertical support device are Φ1, Φ2, Φ3........Φ N ; Set the instantaneous impact strength on the cross beam, support seat, and support column as P0. Observe the deformation sizes of each material after being impacted by the instantaneous impact strength. Select the material with the smallest deformation size as the manufacturing material;

[0046] Set the length of the support rod as U1, and calculate the optimal value of U1 through the optimization algorithm.

[0047] In the present invention, the connection of steel members adopts high-strength bolt connection. Multiple bolts 9, connectors 10, nuts 11, and connecting plates 8 can fix the roof inclined plate 7, ensuring the safety and seismic performance of the structure. And the multiple structures support the cross beam 1, which can not only stably support the building, but also relieve the energy of seismic waves, being beneficial to improving the overall seismic stability and reliability, being able to provide greater spatial flexibility and higher lateral force resistance capacity. The connection of steel members adopts high-strength bolt or welding connection to ensure that the structure will not be damaged due to connection failure during an earthquake. And support rods are arranged on both sides and double fixation on both sides of the support rods are used to consume seismic energy, improving the overall seismic performance of the building frame structure. On the basis of the original support structure, the support effect on the top beam is further enhanced, improving the seismic performance. And the building structure frame is not tightly connected to the ground, which can effectively buffer the damage of seismic waves to the building structure frame, effectively ensuring people's life safety and reducing property losses.

Claims

1. A frame structure topology optimization design system based on seismic performance requirements, including 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 frame and transmits the optimized data to the data analysis system. The data analysis system analyzes the optimized data and makes a manufacturing selection for the frame based on the analyzed data. The installation system includes a lateral support device, a top frame device, and a vertical support device. The top frame device is arranged at the upper end of the lateral support device. The vertical support device vertically supports the lateral support device. The lateral support device includes a cross beam. A support block is fixedly connected to the upper surface of the cross beam. A support seat is fixedly connected to the top of the support block. A straight rod is fixedly connected to the top end of the support seat. Support columns are fixedly connected to both sides of the cross beam. A frame is fixedly connected to the surface of the support columns. The top frame device includes an inclined plate fixedly connected to the upper surface of the frame. A connecting plate is fixedly connected to the surface of the inclined plate. Through holes are formed on both sides of the inclined plate. Bolts are inserted into the through holes. A connecting piece is sleeved on the outside of the bolts. One end of the bolts is threadedly connected with nuts.

2. The design system according to claim 1, characterized in that: The vertical support device includes a support plate fixedly connected to the lower surface of the cross beam. 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. A clamp is sleeved on the outside of the support rod.

3. The design system according to claim 2, wherein: A threaded rod is threadedly connected to the inside of the clamp. A handle is fixedly connected to the surface of the threaded rod. A connecting rod and a telescopic rod are sleeved on the outside of the threaded rod. A support seat is fixedly connected to the bottom end of the support rod. Cross plates are fixedly connected to the four corners of the support seat. A sleeve is fixedly connected to one side of the cross plate. A vertical rod is inserted into the sleeve. A base is fixedly connected to the bottom end of the vertical rod.

4. The design system according to claim 3, characterized in that: An inclined rod is fixedly connected to one side of the support seat. One end of the inclined rod is fixedly connected to the straight rod. One end of the connecting rod is rotatably connected to the surface of the telescopic rod.

5. The design system according to claim 4, wherein: Holes are formed on the outside of the sleeve. Fixed bolts are threadedly connected to the holes. The number of the cross plates is four, and the four cross plates are fixedly connected to the four corners of the support seat in a rectangular array.

6. The design system according to claim 5, characterized in that: The number of the straight rods is several. All of them are fixedly connected to each other through strengthening rods. The number of the strengthening rods is two. The two strengthening rods cross each other and are fixedly connected through fixing pieces. A support rod is fixedly connected to the upper surface of the straight rod. The bottom end of the support rod is fixedly connected to the straight rod through screws.

7. The design system according to claim 6, wherein: A second clamp is fixedly connected to one end of the connecting rod. A control bolt is threadedly connected to the surface of the second clamp. The number of the connecting rods is several. The several connecting rods and multiple support rods are arranged in a triangular pattern.

8. It also includes a method for topology optimization according to the topology optimization design system of the frame structure based on seismic performance requirements according to any one of claims 1-7, which includes the following steps: Step 1: The dimension optimization system optimizes the materials, dimensions, and installation methods of the cross beams, support seats, and support columns, and sets the types of materials of the cross beams, support seats, and support columns to Φ1, Φ2, Φ3........Φ N ; Set the instantaneous impact strength of the cross beams, support seats, and support columns to P0, observe the deformation dimensions of each material after being impacted by the instantaneous impact strength, and select the material with the smallest deformation dimension as the manufacturing material; Set the length of the crossbeam as X0, then the length from the crossbeam 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. Calculate different K1 values by setting different values of the length X0 / 2 from the crossbeam to the support columns and the height H0 of the support columns.

9. The topology optimization method according to claim 8, characterized in that: Step 2: Optimize the materials, dimensions, and installation methods of the frame and the inclined plate through the dimension optimization system, and set the types of the materials of the frame and the inclined plate to Φ1, Φ2, Φ3........Φ N ; Set the instantaneous impact strength of the cross beam, support seat, and support column to P0, observe the deformation dimensions of each material after being impacted by the instantaneous impact strength, and select the material with the smallest deformation dimension as the manufacturing material.

10. The topology optimization method according to claim 9, characterized in that: Optimize the materials and dimensions of the vertical support device through the size optimization system. The types of materials for the support plate and support rod of the vertical support device are Φ1, Φ2, Φ3........Φ N ; Set the instantaneous impact strength of the cross beam, support seat, and support column to P0, observe the deformation dimensions of each material after being impacted by the instantaneous impact strength, and select the material with the smallest deformation dimension as the manufacturing material; Set the length of the support rod to U1, and calculate the optimal value of U1 through the optimization algorithm.

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