Construction method of anti-cracking performance simulation model based on concrete

Abstract

The invention relates to the technical field of concrete anti-cracking performance, in particular to a concrete-based anti-cracking performance simulation model construction method, which comprises the following steps: receiving an anti-cracking performance model generation instruction, starting an anti-cracking performance testing device according to the generation instruction, confirming to-be-tested concrete, striking fixed concrete to obtain struck concrete, and calculating the anti-cracking performance simulation model according to the struck concrete. And starting the permeation unit, performing water injection operation on one side of the hit concrete by using the water inlet pipe, performing water discharge operation on the other side of the hit concrete by using the water outlet pipe, detecting to obtain the water discharge speed, and introducing the basic parameters, the hit position, the hit force and the water discharge speed of the to-be-detected concrete into the model generation unit to obtain the anti-cracking performance model. According to the invention, the problem of low intelligent degree of a current concrete anti-cracking performance testing method can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete anti-cracking performance, and in particular to a method, system, electronic device and computer-readable storage medium for constructing a simulation model of concrete anti-cracking performance. Background Art

[0002] Concrete is widely used in roads, bridges, tunnels and house construction, and its performance under external forces is also crucial to its practical application. Concrete may crack, deform, and be damaged under external force impact, which may cause fatigue, failure and even safety hazards of concrete structure. Therefore, accurate and comprehensive testing and analysis of the performance of concrete under external force impact is of great significance to ensure its safe and reliable application.

[0003] The current testing technology for concrete crack resistance usually adopts methods such as restricted shrinkage ring test and flat plate test. Although these methods can achieve the purpose of testing crack resistance, they require a lot of time and human resources. Therefore, the current testing methods for concrete crack resistance have the problem of low intelligence. Summary of the invention

[0004] The present invention provides a method for constructing a simulation model of crack resistance of concrete and a computer-readable storage medium, the main purpose of which is to solve the problem of low intelligence level in the current testing method of concrete crack resistance.

[0005] To achieve the above object, the present invention provides a method for constructing a simulation model of crack resistance of concrete, comprising:

[0006] Receiving a generation instruction of a crack resistance performance model, and starting a crack resistance performance test device according to the generation instruction, wherein the crack resistance performance test device includes: a fixing unit, a striking unit, a penetration unit and a model generation unit;

[0007] Confirm the concrete to be tested, wherein the basic parameters of the concrete to be tested include the thickness and mass of the concrete to be tested;

[0008] The fixed concrete to be tested is fixed by using a fixing unit to obtain fixed concrete, and a striking position of the striking unit striking the fixed concrete and a striking force of the striking unit striking the fixed concrete are determined;

[0009] Based on the striking position and striking force, striking the fixed concrete to obtain struck concrete;

[0010] Starting the permeation unit, wherein the permeation unit includes a water inlet pipe and a water outlet pipe;

[0011] The water inlet speed of the water inlet pipe is calculated according to the striking force, and water is injected into the side of the concrete that has been struck by the water inlet pipe, wherein the water injection speed is the water inlet speed;

[0012] At the same time, a water outlet pipe is used to perform a water outlet operation on the other side of the concrete that has been hit, and the water outlet speed is detected;

[0013] The basic parameters of the concrete to be tested, striking position, striking force, and water outlet speed are introduced into the model generation unit to obtain the anti-cracking performance model.

[0014] Optionally, the fixing unit includes a clamp and a rubber base, and the clamp can be dynamically adjusted according to the shape of the concrete to be tested, the rubber base is located at the bottom of the clamp, and the middle position of the rubber base has a hole, and the hole can be used for the water inlet pipe to be inserted, and the concrete to be tested is fixed by the fixing unit to obtain the fixed concrete, including:

[0015] Acquire the shape of the concrete to be tested, wherein the shape of the concrete to be tested includes a sphere, a cylinder or a cube;

[0016] Confirming the size of the concrete according to the shape of the concrete to be tested;

[0017] The concrete to be tested is fixed with a fixture using the size of the concrete to obtain fixed concrete.

[0018] Optionally, the step of striking the fixed concrete based on the striking position and the striking force to obtain the struck concrete comprises:

[0019] Wherein, the striking unit comprises: an impactor and an impact sensor, and the impactor is fixed above the impact sensor;

[0020] The impact data is obtained based on the striking position and the striking force, the fixed concrete is struck using the impact data and the impactor, and feedback data is obtained using an impact sensor, wherein the feedback data includes a feedback position and a feedback force, and after confirming that the fixed concrete has completed striking based on the feedback position and the feedback force, the struck concrete is obtained.

[0021] Optionally, the calculating the water inlet speed of the water inlet pipe according to the striking force includes:

[0022] The water inlet pressure given to the water inlet pipe by the permeation unit is calculated according to the striking force;

[0023] The water inlet speed of the water inlet pipe is calculated according to the water inlet pressure, wherein the calculation formula of the water inlet speed is:

[0024]

[0025] Among them, Q represents the water inlet speed, ΔP represents the water inlet pressure of the inlet pipe, R represents the radius of the inlet pipe, μ represents the dynamic viscosity of the fluid, and L represents the length of the inlet pipe;

[0026] The method of calculating the water inlet pressure of the infiltration unit on the water inlet pipe according to the striking force includes:

[0027] The water inlet pressure is calculated according to the following formula:

[0028]

[0029] Among them, P i represents the water inlet pressure of the i-th water inlet pipe in the permeation unit, P max represents the maximum water inlet pressure of the i-th water inlet pipe, N j It represents the impact force of the impact unit hitting the fixed concrete for the jth time.

[0030] Optionally, the step of performing a water discharge operation on the other side of the concrete having been struck by using a water discharge pipe and detecting a water discharge speed includes:

[0031] The water outlet speed is calculated according to the following formula:

[0032]

[0033] Among them, h f Indicates the water outlet speed, P i represents the water inlet pressure of the i-th water inlet pipe in the permeation unit, L a represents the length of the outlet pipe, g represents the acceleration due to gravity, and D represents the diameter of the outlet pipe.

[0034] Optionally, the basic parameters of the concrete to be tested, the striking position, the striking force, and the water outlet speed are introduced into the model generation unit to obtain the anti-cracking performance model, including:

[0035] Building a three-dimensional model of the concrete to be tested based on the basic parameters, and retrieving a model striking position corresponding to the striking position in the three-dimensional model;

[0036] The striking force and water outlet speed corresponding to the striking position are directed to the striking position of the model to obtain the anti-cracking performance model.

[0037] Optionally, obtaining the shape of the concrete to be tested includes:

[0038] Starting a laser scanner, wherein the laser scanner includes a control unit and a measuring unit;

[0039] Using a control unit to perform multi-directional image acquisition on the concrete to be tested, to obtain multiple directional images;

[0040] Acquire three-dimensional shape characteristic values ​​of the concrete to be tested based on multiple orientation images and measurement units;

[0041] The shape of the concrete to be tested is obtained based on the three-dimensional shape feature value of the concrete to be tested.

[0042] Optionally, the obtaining of three-dimensional shape characteristic values ​​of the concrete to be measured based on multiple orientation images and measurement units includes:

[0043] Acquire a point cloud model of the concrete to be tested by using multi-directional images, and splice a three-dimensional model of the concrete to be tested based on the point cloud model;

[0044] The three-dimensional model is cut by using the principal plane section view projection method to obtain multiple section planes;

[0045] Projecting the multiple section planes onto the respective section planes to obtain a two-dimensional projection image of the three-dimensional model of the concrete to be tested;

[0046] Acquire the edge contour of the concrete to be tested according to the two-dimensional projection image;

[0047] The three-dimensional shape characteristic value of the concrete to be tested is calculated based on the edge contour of the concrete to be tested.

[0048] Optionally, the obtaining the shape of the concrete to be tested based on the three-dimensional shape feature value of the concrete to be tested includes:

[0049] Wherein, the three-dimensional shape characteristic values ​​include the surface area, volume and area of ​​the concrete to be tested;

[0050] Reconstructing a three-dimensional model diagram using the surface area, volume and area of ​​the concrete to be tested to obtain a reconstructed model diagram;

[0051] The reconstructed model image is verified and calibrated to obtain the shape of the concrete to be tested.

[0052] To achieve the above object, the present invention also provides a system for constructing a simulation model of crack resistance of concrete, comprising:

[0053] A generation instruction receiving module is used to receive a generation instruction of a crack resistance performance model, and start the crack resistance performance testing device according to the generation instruction, wherein the crack resistance performance testing device includes: a fixing unit, a striking unit, a penetration unit and a model generation unit;

[0054] A concrete striking module is used to confirm the concrete to be tested, wherein the basic parameters of the concrete to be tested include the thickness and mass of the concrete to be tested, the concrete to be tested is fixed by a fixing unit to obtain fixed concrete, a striking position of the striking unit striking the fixed concrete and a striking force of striking the fixed concrete are determined, and based on the striking position and striking force, the fixed concrete is struck to obtain struck concrete;

[0055] A concrete penetration module is used to start the penetration unit, wherein the penetration unit includes a water inlet pipe and a water outlet pipe, and the water inlet speed of the water inlet pipe is calculated according to the striking force, and the water inlet pipe is used to perform a water injection operation on the side of the concrete that has been struck, wherein the water injection speed is the water inlet speed, and at the same time, the water outlet pipe is used to perform a water outlet operation on the other side of the concrete that has been struck, and the water outlet speed is detected;

[0056] The anti-crack performance model generation module is used to import the basic parameters of the concrete to be tested, the striking position, the striking force, and the water outlet speed into the model generation unit to obtain the anti-crack performance model.

[0057] In order to solve the above problem, the present invention further provides an electronic device, the electronic device comprising:

[0058] A memory storing at least one instruction;

[0059] The processor executes the instructions stored in the memory to implement the above-mentioned method for constructing a simulation model based on the anti-cracking performance of concrete.

[0060] In order to solve the above problems, the present invention also provides a computer-readable storage medium, in which at least one instruction is stored. The at least one instruction is executed by a processor in an electronic device to implement the above-mentioned method for constructing a simulation model based on the anti-cracking performance of concrete.

[0061] The present invention is to solve the problem described in the background technology. The present invention receives a generation instruction of a crack resistance performance model, and starts a crack resistance performance test device according to the generation instruction, wherein the crack resistance performance test device includes: a fixing unit, a striking unit, a penetration unit and a model generation unit, and the crack resistance performance test device simulates the crack resistance under impact conditions that may be encountered in actual use. The present invention confirms the concrete to be tested, wherein the basic parameters of the concrete to be tested include the thickness and mass of the concrete to be tested, fixes the concrete to be tested by a fixing unit to obtain fixed concrete, determines the striking position of the striking unit striking the fixed concrete, and the striking force of striking the fixed concrete, and based on the striking position and striking force, strikes the fixed concrete to obtain struck concrete, and through a systematic testing process, aims to evaluate the crack resistance of the concrete to be tested when it is impacted through testing. The present invention starts a permeation unit, wherein the permeation unit includes a water inlet pipe and a water outlet pipe, calculates the water inlet speed of the water inlet pipe according to the striking force, performs a water injection operation on one side of the concrete that has been struck by the water inlet pipe, wherein the water injection speed is the water inlet speed, and at the same time, performs a water outlet operation on the other side of the concrete that has been struck by the water outlet pipe, and detects the water outlet speed, tests the concrete permeability through the permeation operation, and shows the crack resistance of the concrete to be tested according to the permeability. Compared with directly detecting the surface cracks of the concrete, it has higher stability and is simpler to operate. The present invention imports the basic parameters of the concrete to be tested, the striking position, the striking force, and the water outlet speed into the model generation unit to obtain a crack resistance performance model. Therefore, the present invention can solve the problem that the current test method for the crack resistance of concrete has a low degree of intelligence. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 A schematic diagram of a process for constructing a simulation model for crack resistance of concrete provided in one embodiment of the present invention;

[0063] Figure 2 A functional module diagram of a system for constructing a simulation model for crack resistance of concrete provided by an embodiment of the present invention;

[0064] Figure 3 A schematic diagram of the structure of an electronic device for implementing the method for constructing a model based on the simulation model of the anti-cracking performance of concrete provided by an embodiment of the present invention.

[0065] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0066] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0067] The embodiment of the present application provides a method for constructing a simulation model of crack resistance based on concrete. The execution subject of the method for constructing a simulation model of crack resistance based on concrete includes but is not limited to at least one of the electronic devices such as a server and a terminal that can be configured to execute the method provided by the embodiment of the present application. In other words, the method for constructing a simulation model of crack resistance based on concrete can be executed by software or hardware installed on a terminal device or a server device, and the software can be a blockchain platform. The server includes but is not limited to: a single server, a server cluster, a cloud server or a cloud server cluster, etc.

[0068] Reference Figure 1 FIG. 1 is a flow chart of a method for constructing a simulation model for crack resistance of concrete provided by an embodiment of the present invention. In this embodiment, the method for constructing a simulation model for crack resistance of concrete includes:

[0069] S1. Receive a generation instruction of a crack resistance performance model, and start a crack resistance performance test device according to the generation instruction, wherein the crack resistance performance test device includes: a fixing unit, a striking unit, a penetration unit and a model generation unit.

[0070] It should be explained that the generating instruction is an instruction for generating a crack resistance performance model.

[0071] It is understandable that the embodiment of the present invention impacts the concrete to be tested and performs a permeability test on the concrete after the impact. The crack resistance of the concrete to be tested is expressed according to the impact that the concrete to be tested can withstand and the permeability after the impact. The greater the impact that can be sustained and the lower the permeability after the impact, the better the crack resistance of the corresponding concrete to be tested. Among them, the lower the permeability means that the cracks of the concrete to be tested after the impact cannot pass through the high-pressure water flow. Therefore, the more complete the concrete is after the impact, the better the crack resistance of the concrete to be tested.

[0072] For example, Xiao Zhang wants to simulate the anti-cracking performance of concrete, so he issues a generation instruction, and generates a simulation model of the anti-cracking performance of concrete according to a series of operations of the generation instruction.

[0073] Importantly, the main function of the fixed unit is to fix the concrete to be tested. The main function of the striking unit is to perform striking operations on the fixed concrete. The main function of the penetration unit is to perform penetration analysis on the struck concrete. The main function of the model generation unit is to generate a simulation model of the crack resistance of concrete.

[0074] It needs to be explained that crack resistance refers to the ability to absorb and disperse energy in impact tests. Concrete with good crack resistance can better absorb and disperse energy when impacted, reduce the generation and expansion of cracks, and thus maintain the integrity of the structure.

[0075] For example, in roads, bridges, tunnels or protective structures, it is necessary to withstand vehicle impact, earthquake impact or other dynamic loads. Therefore, it is very important to understand the crack resistance of concrete. Through the impact test, the impact resistance of concrete under different impact strengths and impact conditions can be obtained. After the concrete is impacted, compared with the detection of concrete surface images, surface cracks and other methods, the detection of concrete permeability can more accurately indicate the cracking of concrete after impact. After accurately obtaining the crack resistance of concrete, construction engineers can choose the appropriate concrete mix ratio and construction technology to ensure the safety and durability of concrete during use.

[0076] S2. confirming the concrete to be tested, wherein the basic parameters of the concrete to be tested include the thickness and mass of the concrete to be tested, and fixing the concrete to be tested by using a fixing unit to obtain fixed concrete.

[0077] It should be explained that the concrete to be tested is the concrete waiting to be tested.

[0078] Furthermore, obtaining the shape of the concrete to be tested includes:

[0079] Starting a laser scanner, wherein the laser scanner includes a control unit and a measuring unit;

[0080] Using a control unit to perform multi-directional image acquisition on the concrete to be tested, to obtain multiple directional images;

[0081] Acquire three-dimensional shape characteristic values ​​of the concrete to be tested based on multiple orientation images and measurement units;

[0082] The shape of the concrete to be tested is obtained based on the three-dimensional shape feature value of the concrete to be tested.

[0083] It should be understood that the three-dimensional shape characteristic value of the concrete to be measured based on multiple orientation images and measurement units includes:

[0084] Acquire a point cloud model of the concrete to be tested by using multi-directional images, and splice a three-dimensional model of the concrete to be tested based on the point cloud model;

[0085] The three-dimensional model is cut by using the principal plane section view projection method to obtain multiple section planes;

[0086] Projecting the multiple section planes onto the respective section planes to obtain a two-dimensional projection image of the three-dimensional model of the concrete to be tested;

[0087] Acquire the edge contour of the concrete to be tested according to the two-dimensional projection image;

[0088] The three-dimensional shape characteristic value of the concrete to be tested is calculated based on the edge contour of the concrete to be tested.

[0089] It should be explained that the laser scanner is a high-precision measuring tool that can determine the spatial position of the surface of an object by emitting a laser beam and measuring the time it takes for it to reflect back. The control unit is a device used to control and manage electronic systems and various parameters, thereby achieving the purpose of controlling the system function. The measuring unit is a measuring system of laser scanning technology, which can measure the size, shape, position and other information of an object by emitting a laser beam and receiving the reflected laser. Multi-directional image acquisition is multi-directional image acquisition. The three-dimensional shape feature value is the feature value obtained by accurately measuring the size, volume, surface area, etc. of the object.

[0090] It can be understood that the laser scanner equipment is used to perform an all-round scan of the concrete structure at different positions and angles of the concrete to be tested to ensure that the shape information of the concrete to be tested is captured, the shape information of the concrete to be tested collected by the measuring unit is analyzed, and the concrete three-dimensional model is reconstructed using sw software. These images and measuring units contain point cloud data of the concrete surface. Each point in the point cloud data has its precise coordinates in three-dimensional space. According to the three-dimensional shape feature values ​​of the concrete to be tested, the precise three-dimensional shape of the concrete to be tested can be constructed.

[0091] For example, a team of bridge engineers decided to build a new bridge. Before the construction, the concrete sample structure used in the bridge was inspected in detail to evaluate its structural integrity and required maintenance. The bridge engineer used a laser scanner to scan the concrete sample, started the equipment and performed necessary calibration to ensure measurement accuracy. Using the control unit, the bridge engineer scanned the concrete sample. The laser scanner emits lasers at each position and captures the reflected laser points to form a multi-directional image. The collected images and measurement data are transmitted to the computer. Using SW software, the bridge engineer integrates these data to generate a three-dimensional model of the bridge concrete structure. SW software analyzes the point cloud data and extracts the three-dimensional shape feature values ​​of the sample concrete, such as the width and length of the cracks, surface unevenness, structural deformation, etc. Based on these feature values, a simulation model of crack resistance is generated.

[0092] Furthermore, the step of obtaining the shape of the concrete to be tested based on the three-dimensional shape feature value of the concrete to be tested includes:

[0093] Wherein, the three-dimensional shape characteristic values ​​include the surface area, volume and area of ​​the concrete to be tested;

[0094] Reconstructing a three-dimensional model diagram using the surface area, volume and area of ​​the concrete to be tested to obtain a reconstructed model diagram;

[0095] The reconstructed model image is verified and calibrated to obtain the shape of the concrete to be tested.

[0096] It should be explained that the reconstructed three-dimensional model diagram is a model diagram that converts a two-dimensional image, data or other forms of information into a three-dimensional visualization.

[0097] Further, the fixing unit includes a clamp and a rubber base, and the clamp can be dynamically adjusted according to the shape of the concrete to be tested, the rubber base is located at the bottom of the clamp, and the middle position of the rubber base has a hole, and the hole can be inserted into the water inlet pipe, and the concrete to be tested is fixed by the fixing unit to obtain fixed concrete, including:

[0098] Acquire the shape of the concrete to be tested, wherein the shape of the concrete to be tested includes a sphere, a cylinder or a cube;

[0099] Confirming the size of the concrete according to the shape of the concrete to be tested;

[0100] The concrete to be tested is fixed with a fixture using the size of the concrete to obtain fixed concrete.

[0101] It should be explained that the size of concrete refers to the thickness, length and width of concrete. The fixture is a device for fixing the concrete to be tested to receive the test. The rubber base is a device for supporting the concrete to be tested, mainly composed of a base and a rubber pad. The fixed concrete is the concrete fixed by the tested concrete device.

[0102] For example, the engineer takes a cube of concrete to be tested, confirms the size of the concrete to be tested, fixes the cube of concrete to be tested with a clamp based on the length, width and height of the cube, and fits the bottom of the cube of concrete to be tested onto a rubber base to stabilize the cube of concrete, thereby obtaining fixed concrete.

[0103] S3, determining the striking position and the striking force of the striking unit for striking the fixed concrete, and striking the fixed concrete based on the striking position and the striking force to obtain struck concrete.

[0104] It is understood that the struck concrete refers to the concrete that has been struck according to the striking position and striking force. The striking position is the position where the concrete is to be struck. The striking force is the force with which the concrete is struck.

[0105] Further, the step of striking the fixed concrete based on the striking position and the striking force to obtain the struck concrete comprises:

[0106] Wherein, the striking unit comprises: an impactor and an impact sensor, and the impactor is fixed above the impact sensor;

[0107] The impact data is obtained based on the striking position and the striking force, the fixed concrete is struck using the impact data and the impactor, and feedback data is obtained using an impact sensor, wherein the feedback data includes a feedback position and a feedback force, and after confirming that the fixed concrete has completed striking based on the feedback position and the feedback force, the struck concrete is obtained.

[0108] It should be explained that the impact data is the position data and force data of the set striking position and striking force. The impact sensor is a sensor that records and outputs striking position and striking force data information. The feedback data is the position data and force data of the striking position and striking force after the striking, and its main function is to record the position data and force data of the set striking position and striking force.

[0109] Exemplarily, the striking position is set to A, the striking force is X, and a striking operation is performed on the concrete to be tested to obtain impact data, where the impact data is when the striking position is set to A and the striking force is X.

[0110] For example, an engineer needs to test the crack resistance of a concrete sample and determine the required striking position and striking force. If the center point of the fixed concrete needs to be struck, the position of the center point is calculated based on the measured dimensions and the required striking force is set. After the striking unit executes the operation, the impact sensor records and outputs the striking position and striking force data information. If the fixed concrete does not crack when struck by the impactor, it means that its crack resistance is good.

[0111] S4. Start the infiltration unit, wherein the infiltration unit includes a water inlet pipe and a water outlet pipe, calculate the water inlet speed of the water inlet pipe according to the striking force, and use the water inlet pipe to perform water injection operation on the side of the concrete that has been struck, wherein the water injection speed is the water inlet speed.

[0112] It should be understood that the permeability unit can provide experimental data on crack morphology, size and distribution. These experimental data are very important for establishing a simulation model for crack resistance. The results obtained through actual permeability tests can be used to calibrate and adjust the parameters in the simulation model to ensure that the model can accurately simulate the anti-cracking performance of concrete.

[0113] Further, the water inlet speed of the water inlet pipe is calculated according to the striking force, including:

[0114] The water inlet pressure given to the water inlet pipe by the permeation unit is calculated according to the striking force;

[0115] The water inlet speed of the water inlet pipe is calculated according to the water inlet pressure, wherein the calculation formula of the water inlet speed is:

[0116]

[0117] Among them, Q represents the water inlet speed, ΔP represents the water inlet pressure of the inlet pipe, R represents the radius of the inlet pipe, μ represents the dynamic viscosity of the fluid, and L represents the length of the inlet pipe;

[0118] The method of calculating the water inlet pressure of the infiltration unit on the water inlet pipe according to the striking force includes:

[0119] The water inlet pressure is calculated according to the following formula:

[0120]

[0121] Among them, P i represents the water inlet pressure of the i-th water inlet pipe in the permeation unit, P max represents the maximum water inlet pressure of the i-th water inlet pipe, N j It represents the impact force of the impact unit hitting the fixed concrete for the jth time.

[0122] It should be explained that the water inflow rate is the speed at which water flows into the concrete. The dynamic viscosity of a fluid is a physical quantity of the internal resistance of the fluid, which indicates the degree of friction between adjacent layers when the fluid flows. The greater the viscosity, the greater the internal friction of the fluid and the worse the fluidity of the fluid.

[0123] It needs to be explained that the maximum water inlet pressure is the maximum water pressure value allowed to be applied to the concrete structure in the concrete penetration test. The maximum water pressure value is determined based on the strength requirements of the concrete structure to ensure that the integrity and safety of the concrete structure are not compromised under the action of water pressure.

[0124] S5. Using a water outlet pipe, water is discharged from the other side of the concrete, and a water discharge speed is detected.

[0125] Furthermore, the method of using the water outlet pipe to perform water outlet operation on the other side of the concrete that has been hit, and detecting the water outlet speed, includes:

[0126] The water outlet speed is calculated according to the following formula:

[0127]

[0128] Among them, h f Indicates the water outlet speed, P i represents the water inlet pressure of the i-th water inlet pipe in the permeation unit, L a represents the length of the outlet pipe, g represents the acceleration due to gravity, and D represents the diameter of the outlet pipe.

[0129] It should be explained that the water outflow velocity is the speed at which the fluid flows out from the inside of the concrete.

[0130] For example, an engineer needs to evaluate the internal structure of a concrete. The evaluation content is the permeability of the internal structure of the concrete. The engineer uses a striking unit to strike the concrete structure multiple times and records the force N of each strike. j Each time the blow is struck, the water inlet pressure P is calculated according to the striking force and the water inlet speed of the water inlet pipe. i , based on the data analysis of water inflow velocity and water inflow pressure, the permeability of the concrete structure during this impact was evaluated.

[0131] S6. Import the basic parameters of the concrete to be tested, striking position, striking force, and water outlet speed into the model generation unit to obtain a crack resistance performance model.

[0132] Furthermore, the basic parameters of the concrete to be tested, the striking position, the striking force, and the water outlet speed are introduced into the model generation unit to obtain the anti-cracking performance model, including:

[0133] Building a three-dimensional model of the concrete to be tested based on the basic parameters, and retrieving a model striking position corresponding to the striking position in the three-dimensional model;

[0134] The striking force and water outlet speed corresponding to the striking position are directed to the striking position of the model to obtain the anti-cracking performance model.

[0135] It should be explained that the model striking position is retrieved in the three-dimensional model. Optionally, the distance between the striking position and the concrete to be tested in a plurality of preset reference planes is measured in the concrete to be tested, and the coordinates of the striking position are obtained, and then the model striking position is retrieved in the three-dimensional model by the coordinates. Exemplarily, if the concrete to be tested is a cube, multiple surfaces of the cube in different positions can be selected as reference planes. Optionally, sw is selected as the three-dimensional modeling software of the concrete to be tested, and the three-dimensional model is constructed using the software and basic parameters. The technology of constructing a three-dimensional model using basic parameters is prior art. The striking force and water outlet speed relative to the striking position of the model striking position are imported into the striking position of the model, so that the striking force and water outlet speed corresponding to the striking position can be read in the three-dimensional model according to different model striking positions, so as to realize the construction of the concrete crack resistance performance model more intuitively. Optionally, the method of importing the striking force and water outlet speed is: marking the striking position of the model, and the method of marking the numerical values ​​corresponding to the striking force and water outlet speed is prior art, and the same effect can be achieved by using other technologies.

[0136] It is understandable that the crack resistance performance is optimized according to the simulation results, and then the optimized concrete crack resistance performance is introduced into the model generation unit, thereby obtaining the crack resistance performance model.

[0137] It should be explained that the model generation unit is a unit that optimizes and generates data information received by simulating it.

[0138] The present invention is to solve the problem described in the background technology. The present invention receives a generation instruction of a crack resistance performance model, and starts a crack resistance performance test device according to the generation instruction, wherein the crack resistance performance test device includes: a fixing unit, a striking unit, a penetration unit and a model generation unit, and the crack resistance performance test device simulates the crack resistance under impact conditions that may be encountered in actual use. The present invention confirms the concrete to be tested, wherein the basic parameters of the concrete to be tested include the thickness and mass of the concrete to be tested, fixes the concrete to be tested by a fixing unit to obtain fixed concrete, determines the striking position of the striking unit striking the fixed concrete, and the striking force of striking the fixed concrete, and based on the striking position and striking force, strikes the fixed concrete to obtain struck concrete, and through a systematic testing process, aims to evaluate the crack resistance of the concrete to be tested when it is impacted through testing. The present invention starts a permeation unit, wherein the permeation unit includes a water inlet pipe and a water outlet pipe, calculates the water inlet speed of the water inlet pipe according to the striking force, performs a water injection operation on one side of the concrete that has been struck by the water inlet pipe, wherein the water injection speed is the water inlet speed, and at the same time, performs a water outlet operation on the other side of the concrete that has been struck by the water outlet pipe, and detects the water outlet speed, tests the concrete permeability through the permeation operation, and shows the crack resistance of the concrete to be tested according to the permeability. Compared with directly detecting the surface cracks of the concrete, it has higher stability and is simpler to operate. The present invention imports the basic parameters of the concrete to be tested, the striking position, the striking force, and the water outlet speed into the model generation unit to obtain a crack resistance performance model. Therefore, the present invention can solve the problem that the current test method for the crack resistance of concrete has a low degree of intelligence.

[0139] like Figure 2 , which is a functional module diagram of a system for constructing a simulation model for crack resistance of concrete provided by an embodiment of the present invention.

[0140] The concrete-based anti-crack performance simulation model construction system 100 of the present invention can be installed in an electronic device. According to the functions to be implemented, the concrete-based anti-crack performance simulation model construction system 100 can include a generation instruction receiving module 101, a concrete striking module 102, a concrete penetration module 103, and an anti-crack performance model generation module 104. The module of the present invention can also be called a unit, which refers to a series of computer program segments that can be executed by an electronic device processor and can complete fixed functions, which are stored in the memory of the electronic device.

[0141] The generating instruction receiving module 101 is used to receive the generating instruction of the anti-crack performance model, and start the anti-crack performance testing device according to the generating instruction, wherein the anti-crack performance testing device includes: a fixing unit, a striking unit, a penetration unit and a model generating unit;

[0142] The concrete striking module 102 is used to confirm the concrete to be tested, wherein the basic parameters of the concrete to be tested include the thickness and mass of the concrete to be tested, fix the concrete to be tested by using a fixing unit to obtain fixed concrete, determine the striking position of the striking unit striking the fixed concrete, and the striking force of striking the fixed concrete, and strike the fixed concrete based on the striking position and the striking force to obtain struck concrete;

[0143] The concrete penetration module 103 is used to start the penetration unit, wherein the penetration unit includes a water inlet pipe and a water outlet pipe, and the water inlet speed of the water inlet pipe is calculated according to the striking force, and the water inlet pipe is used to perform a water injection operation on the side of the concrete that has been struck, wherein the water injection speed is the water inlet speed, and at the same time, the water outlet pipe is used to perform a water outlet operation on the other side of the concrete that has been struck, and the water outlet speed is detected;

[0144] The anti-crack performance model generation module 104 is used to import the basic parameters of the concrete to be tested, the striking position, the striking force, and the water outlet speed into the model generation unit to obtain the anti-crack performance model.

[0145] In detail, each module in the concrete crack resistance simulation model construction system 100 according to the embodiment of the present invention is used in the same manner as described above. Figure 1 The same technical means as the method for constructing a simulation model for the anti-cracking performance of concrete described in the text can produce the same technical effects, so they will not be repeated here.

[0146] like Figure 3 , which is a schematic diagram of the structure of an electronic device for implementing a method for constructing a simulation model for crack resistance of concrete provided by an embodiment of the present invention.

[0147] The electronic device 1 may include a processor 10, a memory 11 and a bus 12, and may also include a computer program stored in the memory 11 and executable on the processor 10, such as a method program for constructing a simulation model for crack resistance of concrete.

[0148] The memory 11 includes at least one type of readable storage medium, and the readable storage medium includes a flash memory, a mobile hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory, etc.), a magnetic memory, a disk, an optical disk, etc. The memory 11 may be an internal storage unit of the electronic device 1 in some embodiments, such as a mobile hard disk of the electronic device 1. The memory 11 may also be an external storage device of the electronic device 1 in other embodiments, such as a plug-in mobile hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (SecureDigital, SD) card, a flash card (Flash Card), etc. equipped on the electronic device 1. Further, the memory 11 also includes an internal storage unit of the electronic device 1 and an external storage device. The memory 11 may be used not only to store application software and various types of data installed in the electronic device 1, such as the code of the program of the method for constructing a simulation model of the anti-cracking performance of concrete, etc., but also to temporarily store data that has been output or is to be output.

[0149] The processor 10 may be composed of an integrated circuit in some embodiments, for example, a single packaged integrated circuit, or a plurality of packaged integrated circuits with the same or different functions, including one or more central processing units (CPUs), microprocessors, digital processing chips, graphics processors, and combinations of various control chips, etc. The processor 10 is the control core (Control Unit) of the electronic device, and uses various interfaces and lines to connect various components of the entire electronic device, and executes or executes programs or modules stored in the memory 11 (for example, a method program for constructing a simulation model of crack resistance of concrete, etc.), and calls data stored in the memory 11 to execute various functions of the electronic device 1 and process data.

[0150] The bus 12 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus 12 may be divided into an address bus, a data bus, a control bus, etc. The bus 12 is configured to realize connection and communication between the memory 11 and at least one processor 10, etc.

[0151] Figure 3 Only an electronic device with components is shown, and those skilled in the art will understand that Figure 3The structure shown does not constitute a limitation on the electronic device 1, and may include fewer or more components than shown in the figure, or combine certain components, or arrange the components differently.

[0152] For example, although not shown, the electronic device 1 may also include a power source (such as a battery) for supplying power to each component. Preferably, the power source may be logically connected to the at least one processor 10 through a power management device, so that the power management device can realize functions such as charging management, discharging management, and power consumption management. The power source may also include any components such as one or more DC or AC power sources, recharging devices, power failure detection circuits, power converters or inverters, power status indicators, etc. The electronic device 1 may also include a variety of sensors, Bluetooth modules, Wi-Fi modules, etc., which will not be repeated here.

[0153] Furthermore, the electronic device 1 may also include a network interface. Optionally, the network interface may include a wired interface and / or a wireless interface (such as a WI-FI interface, a Bluetooth interface, etc.), which is generally used to establish a communication connection between the electronic device 1 and other electronic devices.

[0154] Optionally, the electronic device 1 may further include a user interface, which may be a display, an input unit (such as a keyboard), or a standard wired interface or a wireless interface. Optionally, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, and an OLED (Organic Light-Emitting Diode) touch device. The display may also be appropriately referred to as a display screen or a display unit, which is used to display information processed in the electronic device 1 and to display a visual user interface.

[0155] It should be understood that the embodiment is for illustration only and the scope of the patent application is not limited to this structure.

[0156] The program of the method for constructing a simulation model of crack resistance of concrete stored in the memory 11 of the electronic device 1 is a combination of multiple instructions. When running in the processor 10, the following can be achieved:

[0157] Receiving a generation instruction of a crack resistance performance model, and starting a crack resistance performance test device according to the generation instruction, wherein the crack resistance performance test device includes: a fixing unit, a striking unit, a penetration unit and a model generation unit;

[0158] Confirm the concrete to be tested, wherein the basic parameters of the concrete to be tested include the thickness and mass of the concrete to be tested;

[0159] The fixed concrete to be tested is fixed by using a fixing unit to obtain fixed concrete, and a striking position of the striking unit striking the fixed concrete and a striking force of the striking unit striking the fixed concrete are determined;

[0160] Based on the striking position and striking force, striking the fixed concrete to obtain struck concrete;

[0161] Starting the permeation unit, wherein the permeation unit includes a water inlet pipe and a water outlet pipe;

[0162] The water inlet speed of the water inlet pipe is calculated according to the striking force, and water is injected into the side of the concrete that has been struck by the water inlet pipe, wherein the water injection speed is the water inlet speed;

[0163] At the same time, a water outlet pipe is used to perform a water outlet operation on the other side of the concrete that has been hit, and the water outlet speed is detected;

[0164] The basic parameters of the concrete to be tested, striking position, striking force, and water outlet speed are introduced into the model generation unit to obtain the anti-cracking performance model.

[0165] Specifically, the specific implementation method of the processor 10 for the above instructions can refer to Figures 1 to 3 The description of the relevant steps in the corresponding embodiments will not be repeated here.

[0166] Furthermore, if the module / unit integrated in the electronic device 1 is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. The computer-readable storage medium can be volatile or non-volatile. For example, the computer-readable medium can include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a mobile hard disk, a magnetic disk, an optical disk, a computer memory, and a read-only memory (ROM).

[0167] The present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor of an electronic device, the computer program can implement:

[0168] Receiving a generation instruction of a crack resistance performance model, and starting a crack resistance performance test device according to the generation instruction, wherein the crack resistance performance test device includes: a fixing unit, a striking unit, a penetration unit and a model generation unit;

[0169] Confirm the concrete to be tested, wherein the basic parameters of the concrete to be tested include the thickness and mass of the concrete to be tested;

[0170] The fixed concrete to be tested is fixed by using a fixing unit to obtain fixed concrete, and a striking position of the striking unit striking the fixed concrete and a striking force of the striking unit striking the fixed concrete are determined;

[0171] Based on the striking position and striking force, striking the fixed concrete to obtain struck concrete;

[0172] Starting the permeation unit, wherein the permeation unit includes a water inlet pipe and a water outlet pipe;

[0173] The water inlet speed of the water inlet pipe is calculated according to the striking force, and water is injected into the side of the concrete that has been struck by the water inlet pipe, wherein the water injection speed is the water inlet speed;

[0174] At the same time, a water outlet pipe is used to perform a water outlet operation on the other side of the concrete that has been hit, and the water outlet speed is detected;

[0175] The basic parameters of the concrete to be tested, striking position, striking force, and water outlet speed are introduced into the model generation unit to obtain the anti-cracking performance model.

[0176] In the several embodiments provided by the present invention, it should be understood that the disclosed devices, systems and methods can be implemented in other ways. For example, the system embodiments described above are only illustrative, and actual implementation may have other division methods.

[0177] The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0178] In addition, each functional module in each embodiment of the present invention may be integrated into one processing unit, each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of hardware plus software functional modules.

[0179] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0180] In addition, it is clear that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Multiple units or devices stated in the system claim can also be implemented by one unit or device through software or hardware. The second and other words are used to indicate names, but not to indicate any particular order.

[0181] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A method for constructing a simulation model of crack resistance of concrete, characterized in that: The method comprises: Receiving a generation instruction of a crack resistance performance model, and starting a crack resistance performance test device according to the generation instruction, wherein the crack resistance performance test device includes: a fixing unit, a striking unit, a penetration unit and a model generation unit; Confirm the concrete to be tested, wherein the basic parameters of the concrete to be tested include the thickness and mass of the concrete to be tested; The fixed concrete to be tested is fixed by using a fixing unit to obtain fixed concrete, and a striking position of the striking unit striking the fixed concrete and a striking force of the striking unit striking the fixed concrete are determined; Based on the striking position and striking force, striking the fixed concrete to obtain struck concrete; Starting the permeation unit, wherein the permeation unit includes a water inlet pipe and a water outlet pipe; The water inlet speed of the water inlet pipe is calculated according to the striking force, and water is injected into the side of the concrete that has been struck by the water inlet pipe, wherein the water injection speed is the water inlet speed; At the same time, a water outlet pipe is used to perform a water outlet operation on the other side of the concrete that has been hit, and the water outlet speed is detected; The basic parameters of the concrete to be tested, striking position, striking force, and water outlet speed are introduced into the model generation unit to obtain the anti-cracking performance model.

2. The method for constructing a simulation model of crack resistance of concrete according to claim 1, characterized in that: The fixing unit includes a clamp and a rubber base, and the clamp can be dynamically adjusted according to the shape of the concrete to be tested, the rubber base is located at the bottom of the clamp, and the middle position of the rubber base has a hole, and the hole can be inserted into the water inlet pipe, and the concrete to be tested is fixed by the fixing unit to obtain fixed concrete, including: Acquire the shape of the concrete to be tested, wherein the shape of the concrete to be tested includes a sphere, a cylinder or a cube; Confirming the size of the concrete according to the shape of the concrete to be tested; The concrete to be tested is fixed with a fixture using the size of the concrete to obtain fixed concrete.

3. The method for constructing a simulation model of crack resistance of concrete according to claim 2, characterized in that: Based on the striking position and striking force, the fixed concrete is struck to obtain struck concrete, include: Wherein, the striking unit comprises: an impactor and an impact sensor, and the impactor is fixed above the impact sensor; The impact data is obtained based on the striking position and the striking force, the fixed concrete is struck using the impact data and the impactor, and feedback data is obtained using an impact sensor, wherein the feedback data includes a feedback position and a feedback force, and after confirming that the fixed concrete has completed striking based on the feedback position and the feedback force, the struck concrete is obtained.

4. The method for constructing a simulation model of crack resistance of concrete according to claim 3, characterized in that: The step of calculating the water inlet speed of the water inlet pipe according to the striking force includes: The water inlet pressure given to the water inlet pipe by the permeation unit is calculated according to the striking force; The water inlet speed of the water inlet pipe is calculated according to the water inlet pressure, wherein the calculation formula of the water inlet speed is: Among them, Q represents the water inlet speed, ΔP represents the water inlet pressure of the inlet pipe, R represents the radius of the inlet pipe, μ represents the dynamic viscosity of the fluid, and L represents the length of the inlet pipe; The method of calculating the water inlet pressure of the infiltration unit on the water inlet pipe according to the striking force includes: The water inlet pressure is calculated according to the following formula: Among them, P i represents the water inlet pressure of the i-th water inlet pipe in the permeation unit, P max represents the maximum water inlet pressure of the i-th water inlet pipe, N j It represents the impact force of the impact unit hitting the fixed concrete for the jth time.

5. The method for constructing a simulation model of crack resistance of concrete according to claim 4, characterized in that: The method of using the water outlet pipe to perform water outlet operation on the other side of the concrete that has been hit, and detecting the water outlet speed, includes: The water outlet speed is calculated according to the following formula: Among them, h f Indicates the water outlet speed, P i represents the water inlet pressure of the i-th water inlet pipe in the permeation unit, L a represents the length of the outlet pipe, g represents the acceleration due to gravity, and D represents the diameter of the outlet pipe.

6. The method for constructing a simulation model of crack resistance of concrete according to claim 5, characterized in that: The basic parameters of the concrete to be tested, the striking position, the striking force, and the water outlet speed are introduced into the model generation unit to obtain the anti-cracking performance model, including: Building a three-dimensional model of the concrete to be tested based on the basic parameters, and retrieving a model striking position corresponding to the striking position in the three-dimensional model; The striking force and water outlet speed corresponding to the striking position are directed to the striking position of the model to obtain the anti-cracking performance model.

7. The method for constructing a simulation model of crack resistance of concrete according to claim 2, characterized in that: The step of obtaining the shape of the concrete to be tested comprises: Starting a laser scanner, wherein the laser scanner includes a control unit and a measuring unit; Using a control unit to perform multi-directional image acquisition on the concrete to be tested, to obtain multiple directional images; Acquire three-dimensional shape characteristic values ​​of the concrete to be tested based on multiple orientation images and measurement units; The shape of the concrete to be tested is obtained based on the three-dimensional shape feature value of the concrete to be tested.

8. The method for constructing a simulation model of crack resistance of concrete according to claim 7, characterized in that: The method of obtaining the three-dimensional shape characteristic value of the concrete to be measured based on multiple orientation images and measurement units includes: Acquire a point cloud model of the concrete to be tested by using multi-directional images, and splice a three-dimensional model of the concrete to be tested based on the point cloud model; The three-dimensional model is cut by using the principal plane section view projection method to obtain multiple section planes; Projecting the multiple section planes onto the respective section planes to obtain a two-dimensional projection image of the three-dimensional model of the concrete to be tested; Acquire the edge contour of the concrete to be tested according to the two-dimensional projection image; The three-dimensional shape characteristic value of the concrete to be tested is calculated based on the edge contour of the concrete to be tested.

9. The method for constructing a simulation model of crack resistance of concrete according to claim 8, characterized in that: The shape of the concrete to be tested is obtained based on the three-dimensional shape feature value of the concrete to be tested, include: Wherein, the three-dimensional shape characteristic values ​​include the surface area, volume and area of ​​the concrete to be tested; Reconstructing a three-dimensional model diagram using the surface area, volume and area of ​​the concrete to be tested to obtain a reconstructed model diagram; The reconstructed model image is verified and calibrated to obtain the shape of the concrete to be tested.

10. A system for constructing a simulation model of crack resistance of concrete, characterized in that: The system comprises: A generation instruction receiving module is used to receive a generation instruction of a crack resistance performance model, and start the crack resistance performance testing device according to the generation instruction, wherein the crack resistance performance testing device includes: a fixing unit, a striking unit, a penetration unit and a model generation unit; A concrete striking module is used to confirm the concrete to be tested, wherein the basic parameters of the concrete to be tested include the thickness and mass of the concrete to be tested, the concrete to be tested is fixed by a fixing unit to obtain fixed concrete, a striking position of the striking unit striking the fixed concrete and a striking force of striking the fixed concrete are determined, and based on the striking position and striking force, the fixed concrete is struck to obtain struck concrete; A concrete penetration module is used to start the penetration unit, wherein the penetration unit includes a water inlet pipe and a water outlet pipe, and the water inlet speed of the water inlet pipe is calculated according to the striking force, and the water inlet pipe is used to perform a water injection operation on the side of the concrete that has been struck, wherein the water injection speed is the water inlet speed, and at the same time, the water outlet pipe is used to perform a water outlet operation on the other side of the concrete that has been struck, and the water outlet speed is detected; The anti-crack performance model generation module is used to import the basic parameters of the concrete to be tested, the striking position, the striking force, and the water outlet speed into the model generation unit to obtain the anti-crack performance model.

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