Special-shaped column reinforcement test method, device, equipment, storage medium and program product

Abstract

The invention discloses a special-shaped column reinforcement test method, device and equipment, a storage medium and a program product, and relates to the technical field of building structure reinforcement. The special-shaped column reinforcement test method comprises the steps that a to-be-reinforced special-shaped column is determined; a reinforcing simulation test is conducted on the special-shaped column to be reinforced through a preset reinforcing simulation test model, a reinforcing bearing capacity result is obtained, and the reinforcing simulation test model is obtained by verifying a preset finite element analysis model according to pre-obtained loading test data. The bearing capacity simulation test of special-shaped column reinforcement is realized, the problem that the bearing capacity performance of the reinforced special-shaped column cannot be accurately predicted in the related technology is solved, and the safety problem caused by improper use in an actual special-shaped column reinforcement scene is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of building structure reinforcement, and in particular to a special-shaped column reinforcement test method, device, equipment, storage medium and program product. Background Art

[0002] With the development of urbanization, the rectangular column structural system can no longer meet the requirements of building quality and functionality. On this basis, technical regulations for special-shaped column structural systems are proposed to standardize the design and construction of special-shaped columns.

[0003] However, in practical applications, improper use of special-shaped column structures may still lead to safety problems. Therefore, it is particularly important to evaluate the performance and reinforce the current special-shaped column structures. In related technologies, the bearing capacity calculation of special-shaped column reinforcement is still in the exploratory stage, and the calculation process is complicated, which cannot accurately predict the bearing capacity performance of special-shaped columns after reinforcement.

[0004] The above contents are only used to assist in understanding the technical solution of the present application and do not constitute an admission that the above contents are prior art. Summary of the invention

[0005] The main purpose of this application is to provide a special-shaped column reinforcement test method, device, equipment, storage medium and program product, aiming to solve the problem in the related art that the bearing capacity performance of special-shaped columns after reinforcement cannot be accurately predicted.

[0006] To achieve the above objectives, the present application proposes a special-shaped column reinforcement test method, the method comprising:

[0007] Identify the special-shaped columns to be reinforced;

[0008] A reinforcement simulation test is performed on the special-shaped column to be reinforced through a preset reinforcement simulation test model to obtain a reinforcement bearing capacity result. The reinforcement simulation test model is obtained by verifying a preset finite element analysis model according to pre-acquired loading test data.

[0009] In one embodiment, before the step of performing a reinforcement simulation test on the special-shaped column to be reinforced by using a preset reinforcement simulation test model to obtain a reinforcement bearing capacity result, the step further includes:

[0010] Determining a corresponding test piece to be reinforced according to the special-shaped column to be reinforced;

[0011] Reinforcing the specimen to be reinforced according to preset reinforcement design parameters, and performing a low-cycle reciprocating loading test on the reinforced specimen to obtain loading test data;

[0012] The preset finite element analysis model is verified according to the loading test data to obtain a reinforcement simulation test model.

[0013] In one embodiment, before the step of verifying the preset finite element analysis model according to the loading test data to obtain the reinforcement simulation test model, the step further includes:

[0014] Modeling the special-shaped column to be reinforced to obtain a finite element model of the special-shaped column;

[0015] Based on the preset loading test algorithm model and the special-shaped column finite element model, a finite element analysis model is constructed.

[0016] In one embodiment, the step of verifying a preset finite element analysis model according to the loading test data to obtain a reinforcement simulation test model includes:

[0017] Perform a loading simulation test using the finite element analysis model to obtain simulation test data;

[0018] Comparing the loading test data with the simulation test data to obtain a comparison result;

[0019] According to the comparison result, the model parameters of the finite element analysis model are adjusted to obtain a loading simulation test model.

[0020] In one embodiment, the finite element model of the special-shaped column includes at least one or more of concrete units and steel bar units, and the loading test algorithm model includes at least one or more of a concrete compression constitutive model, a concrete tension hardening model, and a steel bar hysteresis constitutive model.

[0021] In one embodiment, the special-shaped column is an L-shaped column, and the method further comprises:

[0022] Selecting reinforcement test parameters for the L-shaped column to be reinforced, wherein the reinforcement test parameters include at least one or more of the length of the additional wing wall and the axial pressure;

[0023] According to the reinforcement test parameters, a reinforcement simulation test is performed on the L-shaped column to be reinforced through the reinforcement simulation test model to obtain a reinforcement shear bearing capacity result.

[0024] In addition, to achieve the above purpose, the present application also proposes a special-shaped column reinforcement test device, the special-shaped column reinforcement test device comprising:

[0025] A determination module, used to determine the special-shaped columns to be reinforced;

[0026] The test module is used to perform a reinforcement simulation test on the special-shaped column to be reinforced through a preset reinforcement simulation test model to obtain a reinforcement bearing capacity result. The reinforcement simulation test model is obtained by verifying a preset finite element analysis model based on pre-acquired loading test data.

[0027] In addition, to achieve the above-mentioned purpose, the present application also proposes a special-shaped column reinforcement test device, which includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, and the computer program is configured to implement the steps of the special-shaped column reinforcement test method described above.

[0028] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the special-shaped column reinforcement test method described above are implemented.

[0029] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the steps of the special-shaped column reinforcement test method described above are implemented.

[0030] The present application provides a method for reinforcing a special-shaped column. The present application first determines the special-shaped column to be reinforced to determine the object of the reinforcement simulation test; the reinforcement simulation test model obtained by the finite element analysis model is verified using the loading test data, and the special-shaped column to be reinforced is subjected to a reinforcement simulation test to obtain the bearing capacity result of the reinforcement simulation test, so as to simulate the test process of the special-shaped column to be reinforced after reinforcement, thereby evaluating the bearing capacity performance of the special-shaped column after reinforcement. The bearing capacity simulation test of the special-shaped column reinforcement is realized, which solves the problem in the related art that the bearing capacity performance of the special-shaped column after reinforcement cannot be accurately predicted, and avoids the safety problems caused by improper use in the actual special-shaped column reinforcement scene. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0033] Figure 1 A schematic diagram of a process flow provided for the first embodiment of the special-shaped column reinforcement test method of the present application;

[0034] Figure 2 A schematic diagram of a flow chart provided for the second embodiment of the special-shaped column reinforcement test method of the present application;

[0035] Figure 3The finite element model of the L-shaped column reinforced by adding a wing wall according to the third embodiment of the special-shaped column reinforcement test method of the present application;

[0036] Figure 4 Schematic diagram of unreinforced and reinforced L-shaped column specimens involved in the special-shaped column reinforcement test method of this application;

[0037] Figure 5 This is a comparison diagram of the finite element model calculation and test hysteresis curve involved in the special-shaped column reinforcement test method of this application;

[0038] Figure 6 This is a comparison chart of the finite element model calculation and test skeleton curve involved in the special-shaped column reinforcement test method of this application;

[0039] Figure 7 This is a schematic diagram of the module structure of the special-shaped column reinforcement test device according to an embodiment of the present application;

[0040] Figure 8 Schematic diagram of the equipment structure of the hardware operating environment involved in the special-shaped column reinforcement test method in the embodiment of the present application.

[0041] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0042] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0043] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0044] The main solution of the embodiment of the present application is: determine the special-shaped columns to be reinforced; perform a reinforcement simulation test on the special-shaped columns to be reinforced through a preset reinforcement simulation test model to obtain a reinforcement bearing capacity result, and the reinforcement simulation test model is obtained by verifying a preset finite element analysis model based on pre-acquired loading test data.

[0045] In actual applications, the existing special-shaped column structure has some problems such as uneven casting due to complex cross-sections and reduced bearing capacity. In addition, improper use and floor-adding reconstruction require reinforcement and repair of special-shaped columns. As the use time increases, the stiffness and strength of special-shaped columns decrease, and the seismic performance also weakens, so it is necessary to pay attention to their safety. Therefore, it is particularly important to evaluate and reinforce the seismic performance of current special-shaped column structures.

[0046] The wing wall reinforcement method is a fast and effective structural improvement method that is suitable for various special-shaped columns. The lateral stiffness and seismic performance are enhanced by adding wing walls on each side of the column. This method causes the flange components to yield and crack first during an earthquake, consuming seismic energy. Compared with traditional reinforcement methods, this method is more adaptable and can improve the integrity of the column, effectively increase the bearing capacity and lateral stiffness, while maintaining the design advantages of the special-shaped column structure. For L-shaped columns, adding wing walls to increase the cross-sectional area helps to reduce the axial compression ratio and improve the structural stability, while maintaining the flexibility of the spatial layout and the diversity of architectural design. Despite this, the calculation of shear bearing capacity is still complicated, and there is no unified view in academia. Further research on applicable calculation methods is needed.

[0047] This application uses the reinforcement simulation test model obtained after verification of the finite element analysis model to conduct a reinforcement simulation test on the special-shaped column to be reinforced, so as to simulate the test process of the special-shaped column to be reinforced in the actual special-shaped column reinforcement scenario, so as to evaluate the bearing capacity performance of the special-shaped column after reinforcement, and provide a solid theoretical basis for the application of the wing wall reinforcement method in the actual special-shaped column structure building design, which is of great significance to improving the seismic performance of special-shaped column structure buildings and achieving the goal of resilient cities. The bearing capacity simulation test of the special-shaped column reinforcement is realized, which solves the problem that the bearing capacity performance of the special-shaped column after reinforcement cannot be accurately predicted in the related technology, and avoids the safety problems caused by improper use in the actual special-shaped column reinforcement scenario.

[0048] It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of realizing the above functions, a special-shaped column reinforcement test device, etc. The following takes the special-shaped column reinforcement test device as an example to illustrate this embodiment and the following embodiments.

[0049] Based on this, the present application embodiment provides a special-shaped column reinforcement test method, referring to Figure 1 , Figure 1 This is a schematic flow chart of the first embodiment of the special-shaped column reinforcement test method of the present application.

[0050] In this embodiment, the special-shaped column reinforcement test method includes steps S10 to S20:

[0051] Step S10, determining the special-shaped column to be reinforced;

[0052] It should be noted that special-shaped columns refer to columns with irregular cross-sectional shapes, such as L-shaped, T-shaped, etc., which are different from traditional round or square columns. Special-shaped columns to be reinforced refer to special-shaped columns whose bearing capacity or seismic resistance needs to be enhanced.

[0053] It is understandable that in an actual building structure reinforcement scenario, it is first necessary to identify and select the special-shaped columns that need to be reinforced, so that a reinforcement simulation test can be performed on the special-shaped columns that need to be reinforced.

[0054] Step S20, performing a reinforcement simulation test on the special-shaped column to be reinforced through a preset reinforcement simulation test model to obtain a reinforcement bearing capacity result, wherein the reinforcement simulation test model is obtained by verifying a preset finite element analysis model according to pre-acquired loading test data.

[0055] It should be noted that the reinforcement simulation test model is a virtual calculation model used to simulate the impact of reinforcement measures on the performance of special-shaped columns. It can help predict the effects of different reinforcement schemes before actual reinforcement and reduce the risks and costs in the actual special-shaped column reinforcement construction. The finite element analysis model is a mathematical model that decomposes a complex physical structure or system into smaller, simpler parts (called finite elements or elements). Each element is a simple shape (such as a triangle, quadrilateral, cube, etc.), and the elements are connected together through nodes. The loading test data is the loading and deformation data obtained from the actual experiment, which is used to verify and adjust the accuracy of the finite element model, ensure the reliability of the simulation results, and make the reinforcement plan more practical. The reinforcement bearing capacity results can include the reinforcement measures for the special-shaped columns and the bearing capacity values ​​obtained from the test.

[0056] In addition, it should be noted that verifying the preset finite element analysis model based on the pre-acquired loading test data means verifying the accuracy of the model and the reinforcement effect through the data obtained from the actual experiment, optimizing the reinforcement plan through comparison and adjustment, ensuring the effect in actual application and the reliability of the simulation test, and improving the accuracy of the reinforcement measures.

[0057] It can be understood that the reinforcement simulation test model obtained by finite element analysis and verification discretizes the special-shaped columns, simulates the loading test scenarios of the special-shaped columns under different reinforcement schemes, and simulates the bearing capacity of the reinforced special-shaped columns under different reinforcement schemes to predict the bearing capacity performance of the special-shaped columns after reinforcement.

[0058] The present embodiment provides a test method for strengthening special-shaped columns. Through the reinforcement simulation test of finite element analysis, the influence of different reinforcement schemes on the bearing capacity performance of special-shaped columns can be accurately predicted, so as to ensure the scientificity and effectiveness of the reinforcement of special-shaped columns, reduce the risks and uncertainties in actual construction, realize the bearing capacity simulation test of the reinforcement of special-shaped columns, solve the problem in related technologies that the bearing capacity performance of special-shaped columns after reinforcement cannot be accurately predicted, and avoid safety problems caused by improper use in actual special-shaped column reinforcement scenarios.

[0059] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the first embodiment can refer to the above introduction, and will not be repeated in the following. Figure 2 , Figure 2 This is a flow chart of the second embodiment of the special-shaped column reinforcement test method of the present application. Before step S20, the special-shaped column reinforcement test method further includes steps S201 to S203:

[0060] Step S201, determining a corresponding specimen to be reinforced according to the special-shaped column to be reinforced;

[0061] It should be noted that the specimens to be reinforced refer to the test samples before the reinforcement measures are implemented, representing the original state of the special-shaped columns to be reinforced.

[0062] It is understandable that columns with the same or similar geometric shapes and material properties as the special-shaped columns that actually need to be reinforced are selected as specimens to ensure that the experimental data are representative and comparable, making the subsequent reinforcement scheme tests more targeted.

[0063] Step S202, reinforcing the specimen to be reinforced according to preset reinforcement design parameters, and performing a low-cycle reciprocating loading test on the reinforced specimen to obtain loading test data;

[0064] It should be noted that reinforcement design parameters refer to the technical specifications and materials used in the design, such as steel plate thickness, reinforcement material type, construction method, etc., which are used to define the specific implementation plan of the reinforcement measures. Low-cycle reciprocating loading test refers to the application of cyclic loading to the specimen to measure the repeated stress in actual use, test its fatigue resistance and stability, evaluate the performance of the reinforced specimen under repeated loads, and ensure its reliability under actual conditions.

[0065] It can be understood that the specimens are reinforced according to the reinforcement design parameters, and after reinforcement, low-cycle reciprocating loading tests are performed on the specimens, and data obtained from the actual loading test process such as deformation and stress of the specimens at different loading stages are recorded.

[0066] Step S203, verifying the preset finite element analysis model according to the loading test data to obtain a reinforcement simulation test model.

[0067] It should be noted that the verification of the finite element analysis model refers to adjusting the model parameters by comparing the simulation results and experimental data to improve the prediction accuracy of the model, thereby ensuring the accuracy of the model and providing a reliable basis for subsequent reinforcement simulation tests.

[0068] It can be understood that the simulation results of the finite element analysis model are verified by experimental data, which ensures the accuracy and reliability of the model, thereby ensuring its effectiveness in predicting the reinforcement effect.

[0069] In a feasible implementation manner, before the step of verifying the preset finite element analysis model according to the loading test data to obtain the reinforcement simulation test model, the step further includes:

[0070] Step S2031, modeling the special-shaped column to be reinforced to obtain a finite element model of the special-shaped column;

[0071] It can be understood that the geometry and material properties of the special-shaped columns to be reinforced are modeled in detail to obtain the physical model of the special-shaped columns to be reinforced, and then the physical model is discretized to divide the entire model into several small units of special-shaped column finite element models to create a finite element model that can be used for loading test simulation analysis. This model will accurately represent the actual structure of the column, including its complex geometry and material properties.

[0072] Step S2032: constructing a finite element analysis model based on a preset loading test algorithm model and the special-shaped column finite element model.

[0073] It should be noted that the loading test algorithm model refers to the algorithm used to simulate the test conditions of the special-shaped column loading after reinforcement, including the type, size, distribution, etc. of the load, to ensure that the model can accurately simulate the actual loading conditions and evaluate the performance of the column under different loading conditions. The finite element analysis model refers to the model constructed in the finite element analysis software, which includes the geometric model, material properties and loading conditions. It can predict the behavior of the structure under actual conditions through numerical calculations and provide data support for design and reinforcement.

[0074] It can be understood that the finite element model of the special-shaped column obtained by modeling is combined with the preset loading test algorithm to construct a finite element analysis model that can comprehensively consider the loading conditions and structural characteristics for loading test analysis. This model will simulate the performance of the column under actual loading conditions in order to carry out effective reinforcement simulation and evaluation.

[0075] In this implementation, by creating a finite element analysis model that can effectively handle the complex geometric characteristics of special-shaped columns and has a loading test algorithm, not only the geometric and material characteristics of the special-shaped columns are accurately represented, but also the actual loading conditions are effectively simulated. It can provide reliable prediction results for the reinforcement of special-shaped columns, which helps to make scientific decisions in the reinforcement design and optimization process, thereby improving the safety and reliability of the structure.

[0076] In a feasible implementation manner, the step of verifying a preset finite element analysis model according to the loading test data to obtain a reinforcement simulation test model includes:

[0077] Step S2033, performing a loading simulation test using the finite element analysis model to obtain simulation test data;

[0078] It can be understood that in order to verify the finite element analysis model and improve the fitting effect of the model reinforcement simulation test, the reinforced specimen is simulated to apply the same load as the actual loading condition, and numerical simulation is performed through the finite element analysis model to simulate the test data under the actual loading conditions.

[0079] Step S2034, comparing the loading test data with the simulation test data to obtain a comparison result;

[0080] It should be noted that the actual loading test data can be compared with the simulated loading test data using statistical methods or graphical analysis tools to identify the differences between the data and evaluate the performance of the model.

[0081] It is understandable that in order to improve the accuracy of the finite element analysis loading simulation test, the data obtained in the actual loading test is compared with the data obtained in the finite element simulation to evaluate the accuracy and predictive ability of the model. By comparing the actual data with the simulated data, the accuracy of the model is determined, possible errors or mismatches are found, and the comparison results are obtained.

[0082] Step S2035: adjusting the model parameters of the finite element analysis model according to the comparison result to obtain a loading simulation test model.

[0083] It should be noted that the model parameters of the finite element analysis model may include geometric dimensions, material properties, etc., which are set in the finite element model and can affect the simulation results of the model. By adjusting these parameters, the fit and accuracy of the model loading simulation test can be improved.

[0084] In this implementation, the finite element analysis model is precisely calibrated and optimized to ensure its accuracy and reliability in the actual reinforcement simulation. Through loading simulation tests, data comparison and parameter adjustment, the predictive ability of the model is optimized to provide scientific support for engineering design and reinforcement solutions.

[0085] In a feasible implementation, the finite element model of the special-shaped column includes at least one or more of concrete units and steel units, and the loading test algorithm model includes at least one or more of a concrete compression constitutive model, a concrete tension hardening model, and a steel hysteresis constitutive model.

[0086] It should be noted that the concrete unit refers to the unit used to simulate the structural response of the concrete part in the finite element model of the special-shaped column, which can include different constitutive models, such as the compression constitutive model and the tension hardening model, to accurately describe the behavior of concrete under different loads. The steel bar unit refers to the unit used to simulate the mechanical properties of the steel bar and its role in the special-shaped column structure in the finite element model of the special-shaped column, and can describe the hysteresis behavior of the steel bar during loading.

[0087] The concrete compression constitutive model describes the mechanical behavior of concrete under compression loads and is used to simulate the response of concrete under compression loads, including stress-strain relationship, failure criterion, etc. The concrete tension hardening model describes the hardening behavior of concrete under tension loads and is used to describe the behavior of concrete under tension loads, including hardening process and failure mode. The steel hysteresis constitutive model describes the hysteresis effect and mechanical behavior of steel bars under cyclic loads and is used to simulate the hysteresis effect of steel bars under cyclic loads, including yielding, hardening, and mechanical response of steel bars in multiple loading cycles.

[0088] In this implementation, by combining multiple constitutive models of concrete and steel bars, combining detailed modeling and reasonable loading test algorithms, and supporting the simulation of complex load conditions, it can reflect various working conditions in real building reinforcement projects, and can more accurately simulate the performance of special-shaped columns after reinforcement under actual load conditions, ensuring the safety and reliability of the structure in actual applications, thereby helping engineers to design and evaluate reinforced structures.

[0089] In this embodiment, a low-cycle reciprocating loading test is performed by selecting suitable specimens to test the reinforcement effect of the special-shaped column, and then the finite element model is verified by the data of the loading test to ensure the accuracy and reliability of the simulation results, thereby providing a scientific basis for the subsequent optimization of the reinforcement scheme and reducing the engineering risks caused by inaccurate models or insufficient designs.

[0090] Based on the first embodiment and / or the second embodiment of the present application, in the third embodiment of the present application, the same or similar contents as those of the first embodiment and the second embodiment can refer to the above introduction, and will not be repeated later. Figure 3 , Figure 3 The finite element model of the third embodiment of the special-shaped column reinforcement test method of the present application for adding a wing wall to reinforce an L-shaped column is provided. The special-shaped column is an L-shaped column. The special-shaped column reinforcement test method further includes:

[0091] Step S30, selecting reinforcement test parameters for the L-shaped column to be reinforced, wherein the reinforcement test parameters at least include one or more of the length of the additional wing wall and the axial pressure;

[0092] It should be noted that, considering the structural characteristics and bearing performance of the L-shaped column reinforcement, the L-shaped column is reinforced by adding a wing wall. The reinforcement conditions of the added wing wall should be the same as the original column, such as concrete and steel bars, and the same property parameters. The length of the added wing wall and the axial pressure applied to the L-shaped column can be used as the test parameters that can be selected for the L-shaped column reinforcement. The length of the wing wall can significantly affect the shear bearing capacity and overall stability of the column, and the axial pressure has an important influence on the bearing capacity and deformation characteristics of the column.

[0093] It can be understood that according to the geometric shape and usage requirements of the L-shaped column, appropriate reinforcement test parameters such as wing wall length and axial pressure value are selected to carry out reinforcement tests to evaluate the reinforcement effect of the L-shaped column under different reinforcement conditions.

[0094] Step S40: According to the reinforcement test parameters, a reinforcement simulation test is performed on the L-shaped column to be reinforced by using the reinforcement simulation test model to obtain a reinforcement shear bearing capacity result.

[0095] It can be understood that after the geometric model of the L-shaped column is established in the finite element analysis software, and modeling is performed according to the selected reinforcement test parameters (such as wing wall length and axial pressure), the corresponding material properties are assigned to the L-shaped column and the reinforced part (such as the wing wall) for reinforcement simulation test, and the shear bearing capacity results of the L-shaped column after reinforcement are obtained to ensure that the model can accurately reflect the mechanical behavior after reinforcement.

[0096] For example, taking the method of adding wing walls to reinforce the existing L-shaped column as an example, the finite element model of the L-shaped column is as follows: Figure 3 As shown, the specific process of the reinforcement simulation test may include the following steps:

[0097] Step 1: Obtain the shear bearing capacity of the L-shaped column after reinforcement through a low-cycle reciprocating loading test;

[0098] like Figure 4 As shown, Figure 4 Schematic diagram of unreinforced and reinforced L-shaped column specimens involved in the special-shaped column reinforcement test method of this application. This example designs a low-cycle reciprocating loading test of an L-shaped column structure with an additional wing wall. The test selects 100mm and 150mm as the length of the additional wing wall. The height-to-thickness ratios of the reinforced L-shaped column limbs are 4 and 4.5 respectively, and the original column axial compression ratios are 0.15, 0.18 and 0.21.

[0099] During the test, the failure phenomenon of the component was observed and recorded, and the force-displacement hysteresis curve data of the component column top was recorded and output. The designed specimen parameters are shown in the following table:

[0100] Test piece number Additional wing wall length (mm) Original column axial pressure ratio Axis pressure (kN) L1-A 0 0.15 287 L1-B 0 0.18 344 L1-C 0 0.21 401 L2-A 100 0.15 287 L2-B 100 0.18 344 L2-C 100 0.21 401 L3-A 150 0.15 287 L3-B 150 0.18 344 L3-C 150 0.21 401

[0101] There are three specimens, namely L1, L2 and L3. Each specimen is divided into ABC combinations of different added wing wall lengths, original column axial pressure ratios and axial pressures.

[0102] Step 2: Establish a finite element analysis model and verify the model through test data;

[0103] This example uses DIANA (Displacement Analyzer) finite element analysis software to simulate the horizontal cyclic loading test of L-shaped columns reinforced with wing walls. The Maekawa-Fukuura model is selected as the compressive constitutive model of concrete in the finite element model to ensure the accuracy and reliability of the simulation results. The tensile behavior of concrete uses the JSCE (Japan Society of Civil Engineers) tensile hardening model. The constitutive relationship of the steel bar uses the Menegotto-Pinto steel bar hysteretic constitutive model (MP model).

[0104] The Maekawa-Fukura model was selected as the compressive constitutive model of concrete in the finite element model to ensure the accuracy and reliability of the simulation results.

[0105] The compressive constitutive equation of concrete is determined as follows:

[0106]

[0107]

[0108] Where K is the damage factor of concrete under uniaxial compression, E is the elastic modulus, and f c is the axial compressive strength of concrete, σ c is the concrete compressive stress, and ε is the actual total strain.

[0109] When ε<ε cmax When , the concrete is in the compressive loading stage, and its stress calculation formula is:

[0110] σ c =KE(ε-ε P )

[0111]

[0112] When ε<ε cmax , when ε>ε0, ε<0, the concrete is in the compressive unloading stage, and the stress calculation formula is:

[0113] σ c =KE(ε-ε P )α

[0114]

[0115] When ε>ε cmax , ε≤ε0, ε<0, the concrete is in the compression and reloading stage, and the stress calculation formula is:

[0116]

[0117] In the formula, ε P is the plastic strain of concrete, ε0 is the initial strain before the next loading step, and ε cmax is the maximum compressive strain of concrete during loading, σ cmax is cmax The corresponding compressive stress.

[0118] The tensile behavior of concrete adopts the JSCE tensile hardening model of the Japan Society of Civil Engineering, and its tensile curve is determined by the following formula:

[0119]

[0120] Where σ t and ε t are tensile stress and tensile strain respectively; f t is the tensile strength of concrete; e is the maximum elastic strain of concrete; ε tu is the maximum strain corresponding to the tensile strength of concrete, and the recommended value is 0.0002; c is the slope parameter in the softening stage of concrete, and the recommended value is 0.4.

[0121] The constitutive relation of the steel bar adopts the Menegotto-Pinto steel bar hysteresis constitutive model. This model takes into account the Bauschinger effect and uses an explicit function expression of strain. The stress-strain curve of the model is determined by the following formula:

[0122]

[0123] This formula describes the smooth transition of the stress-strain curve from the asymptote with a slope of E0 to the asymptote with a slope of E during cyclic loading. T The asymptote process. Where b is the strain hardening coefficient and E is the hardening modulus. T The ratio of the initial elastic modulus E0; R is the curvature parameter that affects the shape of the curve; σ * and ε * Calculated by the following formula:

[0124]

[0125]

[0126] Where σ and ε are the actual stress and strain respectively; σ r and ε ris the stress and strain corresponding to the inflection point when the strain direction changes; σ0 and ε0 are the stress and strain at the intersection of the two asymptotes. The curvature parameter R reflects the degree of the Bauschinger effect. When the R value is smaller, the Bauschinger effect will be more significant, and its calculation formula is as follows:

[0127]

[0128] Where R0, A1 and A2 are material constants; ξ p is the plastic strain of the current half cycle, which is updated according to the following formula every time the strain direction changes:

[0129]

[0130] Among them, ε m is the maximum strain value during loading, ε y is the yield strain of the steel bar.

[0131] The parameters of concrete strength and steel bar tensile strength are determined through tests. The finite element analysis model is verified through the test results. The comparison between the finite element calculated peak load and the test peak load of each specimen is shown in the following table:

[0132] (1) The comparison between the peak load calculated by finite element method and the peak load tested for specimen L2 is as follows:

[0133]

[0134] (2) The comparison between the peak load calculated by finite element method and the peak load tested for specimen L3 is as follows:

[0135]

[0136] Step 3: Establish a shear bearing capacity database for strengthening existing L-shaped columns by adding wing walls by changing the reinforcement design parameters.

[0137] Due to the limited amount of test data, based on the verified finite element model, the shear bearing capacity database of L-shaped columns reinforced with wing walls is established by changing variables such as the length of the additional wing walls. This example designs a total of 15 sets of test data samples of L-shaped columns reinforced with wing walls. The specific parameters of the relevant specimens in the shear bearing capacity database of L-shaped columns reinforced with wing walls in the database are as follows:

[0138]

[0139] like Figure 5 and Figure 6 As shown, Figure 5 This is a comparison chart of the finite element model calculation and experimental hysteresis curve involved in the special-shaped column reinforcement test method of this application. Figure 6This is a comparison chart of the finite element model calculation and test skeleton curve involved in the special-shaped column reinforcement test method of this application. The hysteresis curve and skeleton curve obtained by the finite element simulation analysis of the reinforced specimen are generally consistent with the test value, showing a good degree of agreement, proving that the established finite element model has a high accuracy in reflecting the horizontal bearing capacity of the L-shaped column after the wing wall reinforcement.

[0140] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the special-shaped column reinforcement test method of the present application. More simple transformations based on this technical concept are all within the protection scope of the present application.

[0141] In this embodiment, a reinforcement simulation test of the L-shaped column is carried out using the selected reinforcement test parameters to obtain the shear bearing capacity results of the reinforced L-shaped column under different parameter conditions. The influence of different reinforcement schemes on the shear bearing capacity of the L-shaped column can be accurately evaluated, and the reinforcement design of the L-shaped column can be optimized to provide the best reinforcement scheme to improve the shear bearing capacity and overall stability of the L-shaped column.

[0142] This application also provides a special-shaped column reinforcement test device, please refer to Figure 7 , the special-shaped column reinforcement test device comprises:

[0143] A determination module 10 is used to determine the special-shaped column to be reinforced;

[0144] The test module 20 is used to perform a reinforcement simulation test on the special-shaped column to be reinforced through a preset reinforcement simulation test model to obtain a reinforcement bearing capacity result. The reinforcement simulation test model is obtained by verifying a preset finite element analysis model based on pre-acquired loading test data.

[0145] Optionally, the test module 20 is further used for:

[0146] Determining a corresponding test piece to be reinforced according to the special-shaped column to be reinforced;

[0147] Reinforcing the specimen to be reinforced according to preset reinforcement design parameters, and performing a low-cycle reciprocating loading test on the reinforced specimen to obtain loading test data;

[0148] The preset finite element analysis model is verified according to the loading test data to obtain a reinforcement simulation test model.

[0149] Optionally, the test module 20 is further used for:

[0150] Modeling the special-shaped column to be reinforced to obtain a finite element model of the special-shaped column;

[0151] Based on the preset loading test algorithm model and the special-shaped column finite element model, a finite element analysis model is constructed.

[0152] Optionally, the test module 20 is further used for:

[0153] Perform a loading simulation test using the finite element analysis model to obtain simulation test data;

[0154] Comparing the loading test data with the simulation test data to obtain a comparison result;

[0155] According to the comparison result, the model parameters of the finite element analysis model are adjusted to obtain a loading simulation test model.

[0156] Optionally, the finite element model of the special-shaped column includes at least one or more of concrete units and steel bar units, and the loading test algorithm model includes at least one or more of a concrete compression constitutive model, a concrete tension hardening model and a steel bar hysteresis constitutive model.

[0157] Optionally, the special-shaped column is an L-shaped column, and the test module 20 is further used for:

[0158] Selecting reinforcement test parameters for the L-shaped column to be reinforced, wherein the reinforcement test parameters include at least one or more of the length of the additional wing wall and the axial pressure;

[0159] According to the reinforcement test parameters, a reinforcement simulation test is performed on the L-shaped column to be reinforced through the reinforcement simulation test model to obtain a reinforcement shear bearing capacity result.

[0160] The special-shaped column reinforcement test device provided by the present application adopts the special-shaped column reinforcement test method in the above embodiment, which can solve the technical problem that the bearing capacity performance of the special-shaped column after reinforcement cannot be accurately predicted in the related art. Compared with the prior art, the beneficial effects of the special-shaped column reinforcement test device provided by the present application are the same as the beneficial effects of the special-shaped column reinforcement test method provided by the above embodiment, and the other technical features of the special-shaped column reinforcement test device are the same as the features disclosed in the above embodiment method, which will not be repeated here.

[0161] The present application provides a special-shaped column reinforcement test device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the special-shaped column reinforcement test method in the first embodiment described above.

[0162] Reference below Figure 8, which shows a schematic diagram of the structure of a special-shaped column reinforcement test device suitable for implementing the embodiment of the present application. The special-shaped column reinforcement test device in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 8 The special-shaped column reinforcement test equipment shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0163] like Figure 8 As shown, the special-shaped column reinforcement test equipment may include a processing device 1001 (such as a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM) 1004. Various programs and data required for the operation of the special-shaped column reinforcement test equipment are also stored in the RAM 1004. The processing device 1001, the ROM 1002, and the RAM 1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touch screen, a touchpad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; storage devices 1003 including, for example, a magnetic tape, a hard disk, etc.; and communication devices 1009. The communication device 1009 can allow the special-shaped column reinforcement test device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows a special-shaped column reinforcement test device with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems may be implemented or have alternatively.

[0164] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0165] The special-shaped column reinforcement test equipment provided by the present application adopts the special-shaped column reinforcement test method in the above embodiment, which can solve the technical problem that the bearing capacity performance of the special-shaped column after reinforcement cannot be accurately predicted in the related art. Compared with the prior art, the beneficial effects of the special-shaped column reinforcement test equipment provided by the present application are the same as the beneficial effects of the special-shaped column reinforcement test method provided by the above embodiment, and the other technical features of the special-shaped column reinforcement test equipment are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0166] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0167] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0168] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the special-shaped column reinforcement test method in the above-mentioned embodiment.

[0169] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination of the above.

[0170] The computer-readable storage medium may be included in the special-shaped column reinforcement test device; or may exist independently without being assembled into the special-shaped column reinforcement test device.

[0171] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by the special-shaped column reinforcement test equipment, the special-shaped column reinforcement test equipment: determines the special-shaped column to be reinforced; performs a reinforcement simulation test on the special-shaped column to be reinforced through a preset reinforcement simulation test model to obtain a reinforcement bearing capacity result, and the reinforcement simulation test model is obtained by verifying a preset finite element analysis model based on pre-acquired loading test data.

[0172] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0173] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0174] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0175] The readable storage medium provided by the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned special-shaped column reinforcement test method, and can solve the technical problem that the bearing capacity performance of special-shaped columns after reinforcement cannot be accurately predicted in the related art. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided by the present application are the same as the beneficial effects of the special-shaped column reinforcement test method provided by the above-mentioned embodiment, and will not be repeated here.

[0176] The present application also provides a computer program product, including a computer program, which implements the steps of the above-mentioned special-shaped column reinforcement test method when executed by a processor.

[0177] The computer program product provided by the present application can solve the technical problem in the related art that the bearing capacity performance of the special-shaped column after reinforcement cannot be accurately predicted. Compared with the prior art, the beneficial effects of the computer program product provided by the present application are the same as the beneficial effects of the special-shaped column reinforcement test method provided by the above embodiment, which will not be described in detail here.

[0178] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A special-shaped column reinforcement test method, characterized in that: The method comprises: Identify the special-shaped columns to be reinforced; A reinforcement simulation test is performed on the special-shaped column to be reinforced through a preset reinforcement simulation test model to obtain a reinforcement bearing capacity result. The reinforcement simulation test model is obtained by verifying a preset finite element analysis model according to pre-acquired loading test data.

2. The method according to claim 1, characterized in that: Before the step of performing a reinforcement simulation test on the special-shaped column to be reinforced by using a preset reinforcement simulation test model to obtain a reinforcement bearing capacity result, the method further includes: Determining a corresponding test piece to be reinforced according to the special-shaped column to be reinforced; Reinforcing the specimen to be reinforced according to preset reinforcement design parameters, and performing a low-cycle reciprocating loading test on the reinforced specimen to obtain loading test data; The preset finite element analysis model is verified according to the loading test data to obtain a reinforcement simulation test model.

3. The method according to claim 2, characterized in that: Before the step of verifying the preset finite element analysis model according to the loading test data to obtain the reinforcement simulation test model, the method further includes: Modeling the special-shaped column to be reinforced to obtain a finite element model of the special-shaped column; Based on the preset loading test algorithm model and the special-shaped column finite element model, a finite element analysis model is constructed.

4. The method according to claim 2, characterized in that: The step of verifying the preset finite element analysis model according to the loading test data to obtain the reinforcement simulation test model includes: Perform a loading simulation test using the finite element analysis model to obtain simulation test data; Comparing the loading test data with the simulation test data to obtain a comparison result; According to the comparison result, the model parameters of the finite element analysis model are adjusted to obtain a loading simulation test model.

5. The method according to any one of claims 1 to 4, characterized in that: The finite element model of the special-shaped column includes at least one or more of concrete units and steel bar units, and the loading test algorithm model includes at least one or more of a concrete compression constitutive model, a concrete tension hardening model and a steel bar hysteresis constitutive model.

6. The method according to claim 1, characterized in that: The special-shaped column is an L-shaped column, and the method further comprises: Selecting reinforcement test parameters for the L-shaped column to be reinforced, wherein the reinforcement test parameters include at least one or more of the length of the additional wing wall and the axial pressure; According to the reinforcement test parameters, a reinforcement simulation test is performed on the L-shaped column to be reinforced through the reinforcement simulation test model to obtain a reinforcement shear bearing capacity result.

7. A special-shaped column reinforcement test device, characterized in that: The device comprises: A determination module, used to determine the special-shaped columns to be reinforced; The test module is used to perform a reinforcement simulation test on the special-shaped column to be reinforced through a preset reinforcement simulation test model to obtain a reinforcement bearing capacity result. The reinforcement simulation test model is obtained by verifying a preset finite element analysis model based on pre-acquired loading test data.

8. A special-shaped column reinforcement test equipment, characterized in that: The device comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the special-shaped column reinforcement test method according to any one of claims 1 to 6.

9. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the special-shaped column reinforcement test method according to any one of claims 1 to 6 are implemented.

10. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the steps of the special-shaped column reinforcement test method according to any one of claims 1 to 6 are implemented.

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