A method and system for hoisting a steel reinforcement cage based on wire rope force calculation

Abstract

This application relates to a steel reinforcement cage hoisting method and system based on wire rope force calculation. Among them, the method includes: constructing a hoisting mechanical simulation model of the steel reinforcement cage; on the basis of the hoisting mechanical simulation model, constructing a hoisting optimization mathematical model; according to the hoisting optimization mathematical model, using a simulation optimization algorithm to optimize and solve for the maximum force on the wire rope during hoisting; selecting the corresponding wire rope according to the maximum force to complete the hoisting of the steel reinforcement cage. Through this application, the problem that it is difficult to efficiently and accurately determine the force on the wire rope used for hoisting the steel reinforcement cage is solved, and based on the hoisting mechanical simulation model, the hoisting optimization mathematical model and the simulation optimization algorithm, the maximum force on the wire rope is searched and solved, and a suitable wire rope is selected to ensure the construction safety during hoisting.

Description

Technical Field

[0001] The present application relates to the technical field of civil engineering, and particularly to a lifting method and system for a steel reinforcement cage based on the force calculation of steel wire ropes. Background Art

[0002] The lifting of the diaphragm wall steel reinforcement cage has its particularity. Because the overall weight of the large-span steel reinforcement cage is heavy, and only three-point lifting is adopted, the bearing capacity of the lifting steel wire ropes is very important. At present, there is little research on the lifting of such small-stiffness steel reinforcement cages, and there are few patents on the calculation methods for the mechanical analysis of the lifting of steel reinforcement cages. For example, in the published document with the patent publication number: CN201110009320.X and the patent name "A Lifting Method for a Steel Reinforcement Cage", a method of coordinated lifting by a main hoist and a deputy hoist, in which the steel reinforcement cage gradually becomes vertical to the ground in the air, is introduced, but no clear position of the lifting point setting is given. In the published document with the patent publication number: CN201310359437.X and the patent name "One-time Lifting Construction Method for an Ultra-long Steel Reinforcement Cage", the lifting points are set evenly along the main reinforcement direction, but no mechanical analysis to support this setting method is given. In the published document with the patent publication number: CN202111435560.6 and the patent name "A Lifting Method for a Special-shaped Steel Reinforcement Cage of a Diaphragm Wall", it is mentioned that the center of gravity position is determined by combining the component size and weight, and then the lifting point position is determined, but the relationship between the lifting point position and the wire force is not involved.

[0003] Currently, for the problem that it is difficult to efficiently and accurately determine the force on the steel wire ropes used for lifting the steel reinforcement cage in the related art, no effective solution has been proposed. Summary of the Invention

[0004] The embodiments of the present application provide a lifting method and system for a steel reinforcement cage based on the force calculation of steel wire ropes, so as to at least solve the problem that it is difficult to efficiently and accurately determine the force on the steel wire ropes used for lifting the steel reinforcement cage in the related art.

[0005] In a first aspect, the embodiments of the present application provide a lifting method for a steel reinforcement cage based on the force calculation of steel wire ropes, and the method includes:

[0006] Construct a lifting mechanical simulation model of the steel reinforcement cage;

[0007] On the basis of the lifting mechanical simulation model, construct a lifting optimization mathematical model;

[0008] According to the lifting optimization mathematical model, optimize and search for the maximum force on the steel wire ropes during the lifting process through a simulation optimization algorithm;

[0009] Select the corresponding steel wire ropes according to the maximum force to complete the lifting of the steel reinforcement cage.

[0010] In some of these embodiments, based on the hoisting mechanical simulation model, constructing a hoisting optimization mathematical model includes:

[0011] Based on the hoisting mechanical simulation model, determine the optimization objective of hoisting, the variable factors affecting the hoisting process, and the constraints of hoisting;

[0012] Construct a hoisting optimization mathematical model from the optimization objective, the variable factors, and the constraints.

[0013] In some of these embodiments, constructing a hoisting mechanical simulation model for the steel reinforcement cage includes:

[0014] Construct a hoisting mechanical simulation model for the steel reinforcement cage according to a beam with one end simply supported and the other end subjected to a vertically upward acting force with equivalent bending stiffness.

[0015] In some of these embodiments, the simulation optimization algorithm is used to transform the dynamic problem of hoisting the steel reinforcement cage into a quasi-static static problem.

[0016] In some of these embodiments, optimizing and searching for the maximum force on the steel wire rope during hoisting through a simulation optimization algorithm includes:

[0017] Adopt CAE technology to establish a quasi-static static simulation optimization model, and optimize and search for the maximum force on the steel wire rope during hoisting.

[0018] In a second aspect, an embodiment of the present application provides a steel reinforcement cage hoisting system based on steel wire rope force calculation, and the system includes a simulation model module, a mathematical model module, and a hoisting module;

[0019] The simulation model module is used to construct a hoisting mechanical simulation model for the steel reinforcement cage;

[0020] The mathematical model module is used to construct a hoisting optimization mathematical model based on the hoisting mechanical simulation model; according to the hoisting optimization mathematical model, optimize and search for the maximum force on the steel wire rope during hoisting through a simulation optimization algorithm;

[0021] The hoisting module is used to select a corresponding steel wire rope according to the maximum force to complete the hoisting of the steel reinforcement cage.

[0022] In some of these embodiments, the mathematical model module is further used to determine the optimization objective of hoisting, the variable factors affecting the hoisting process, and the constraints of hoisting based on the hoisting mechanical simulation model; construct a hoisting optimization mathematical model from the optimization objective, the variable factors, and the constraints.

[0023] In some of these embodiments, the simulation model module is further configured to construct a lifting mechanical simulation model of the steel reinforcement cage according to a simply supported beam at one end and a vertically upward acting force at the other end with equivalent bending stiffness.

[0024] In some of these embodiments, the simulation optimization algorithm is used to transform the dynamic problem of lifting the steel reinforcement cage into a quasi-static static problem.

[0025] In some of these embodiments, the mathematical model module is further configured to establish a quasi-static static simulation optimization model using CAE technology to optimize and solve for the maximum force on the steel wire rope during the lifting process.

[0026] Compared with the related art, a steel reinforcement cage hoisting method and system based on steel wire rope force calculation provided by the embodiments of the present application construct a lifting mechanical simulation model of the steel reinforcement cage; on the basis of the lifting mechanical simulation model, construct a lifting optimization mathematical model; according to the lifting optimization mathematical model, optimize and solve for the maximum force on the steel wire rope during the lifting process through a simulation optimization algorithm; select the corresponding steel wire rope according to the maximum force to complete the hoisting of the steel reinforcement cage, solving the problem that it is difficult to efficiently and accurately determine the force on the steel wire rope used for lifting the steel reinforcement cage, and realizing searching and solving for the maximum force on the steel wire rope based on the lifting mechanical simulation model, the lifting optimization mathematical model and the simulation optimization algorithm, and selecting a suitable steel wire rope to ensure the construction safety during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0028] Figure 1 is a flowchart of the steps of a steel reinforcement cage hoisting method based on steel wire rope force calculation according to an embodiment of the present application;

[0029] Figure 2 is a schematic diagram of a lifting mechanical simulation model of a steel reinforcement cage according to an embodiment of the present application;

[0030] Figure 3 is a schematic diagram of the coordinate system of a lifting mechanical simulation model of a steel reinforcement cage according to an embodiment of the present application;

[0031] Figure 4 is a structural block diagram of a steel reinforcement cage hoisting system based on steel wire rope force calculation according to an embodiment of the present application;

[0032] Figure 5 is a schematic internal structure diagram of an electronic device according to an embodiment of the present application.

[0033] Description of the Drawings: 41. Simulation model module; 42. Mathematical model module; 43. Hoisting module. Detailed implementation manners

[0034] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application will be described and explained below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0035] Obviously, the drawings in the following description are only some examples or embodiments of the present application. For those of ordinary skill in the art, without making creative efforts, the present application can also be applied to other similar scenarios based on these drawings. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for those of ordinary skill in the art related to the content disclosed in the present application, some design, manufacturing or production changes made based on the technical content disclosed in the present application are only conventional technical means and should not be understood as the content disclosed in the present application being insufficient.

[0036] When "embodiment" is mentioned in the present application, it means that the specific features, structures or characteristics described in combination with the embodiment may be included in at least one embodiment of the present application. The appearance of this phrase in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those of ordinary skill in the art explicitly and implicitly understand that the embodiments described in the present application can be combined with other embodiments without conflict.

[0037] Unless otherwise defined, the technical terms or scientific terms involved in this application shall have the ordinary meanings understood by those with ordinary skills in the technical field to which this application belongs. The words such as "a", "an", "one kind", "the" and the like involved in this application do not indicate a quantity limitation and may represent a singular or plural number. The terms "include", "comprise", "have" and any variations thereof involved in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may further include steps or units not listed, or may further include other steps or units inherent to these processes, methods, products or devices. The words such as "connect", "be connected", "be coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "plurality" involved in this application means two or more. "And / or" describes the association relationship of associated objects and indicates that three relationships may exist. For example, "A and / or B" may represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the front and rear associated objects. The terms "first", "second", "third" and the like involved in this application are only used to distinguish similar objects and do not represent a specific order for the objects.

[0038] The applicant has found through research that the design problem of the steel wire rope for lifting the steel reinforcement cage is how much the maximum force on the steel wire rope is during the process of lifting the steel reinforcement cage from the horizontal state to the vertical state? To ensure the safety of the lifting process, the specification of the steel wire rope needs to be selected according to this maximum force value. However, obviously, this is a structural dynamics problem. The general solution method is to use a dynamics simulation platform for solution, but it is difficult to reasonably describe the steel wire rope as a flexible body. The present invention provides another method to solve this problem, that is, a quasi-static static mechanics problem and a simulation optimization algorithm (optimization search algorithm).

[0039] The embodiment of the present application provides a steel reinforcement cage hoisting method based on the calculation of the force on the steel wire rope, Figure 1 which is a step flow chart of the steel reinforcement cage hoisting method based on the calculation of the force on the steel wire rope according to the embodiment of the present application, as Figure 1 shown, and the method includes the following steps:

[0040] Step S102, constructing a hoisting mechanical simulation model of the steel reinforcement cage;

[0041] Specifically, Figure 2 which is a schematic diagram of the hoisting mechanical simulation model of the steel reinforcement cage according to the embodiment of the present application, as Figure 2As shown, a lifting mechanical simulation model of the steel reinforcement cage is constructed with one end of the beam simply supported and the other end subjected to a vertically upward acting force according to the equivalent bending stiffness, that is, the model is a beam with one end simply supported and the other end subjected to a vertically upward acting force, and the bending stiffness of the beam is equivalent to that of the steel reinforcement cage, while the acting force represents the force for lifting the steel reinforcement cage.

[0042] Step S104, based on the lifting mechanical simulation model, construct a lifting optimization mathematical model;

[0043] Specifically, based on the lifting mechanical simulation model, determine the optimization objective of lifting, the variable factors affecting the lifting process, and the constraints of lifting; construct a lifting optimization mathematical model from the optimization objective, variable factors, and constraints.

[0044] Preferably, as Figure 2 shown, let the length of the steel reinforcement cage be L meters and the weight be W kilograms. Generally, three-point lifting is adopted. In the schematic diagram of the lifting mechanical simulation model of the steel reinforcement cage, A, B, and C are the fixed positions of the steel wire ropes on the steel reinforcement cage, and D and E are the lifting points. The lifting points D and E change with the change of the angle between the steel reinforcement cage and the horizontal (lifting angle).

[0045] BDC and AED are each a steel wire rope, and the length of the steel wire rope is fixed (l 11 +l 12 =l a , l 21 +l 22 =l b ), and generally l a =l b . From the definition of the mathematical curve, it can be known that the movement trajectories of the lifting points D and E are ellipses. A and D are the foci of the elliptical curve 1 of the trajectory of point E, and B and C are the foci of the elliptical curve 2 of the trajectory of point D. Establish a coordinate system, Figure 3 is the schematic diagram of the coordinate system of the lifting mechanical simulation model of the steel reinforcement cage according to the embodiment of the present application. As Figure 3 shown, the coordinates of each point are as follows:

[0046] A(x a , y a ) = A(C2cosθ, C2sinθ)

[0047] B(x b , y b ) = B((C2 + l1)cosθ, (C2 + l1)sinθ)

[0048] C(x c , y c ) = C((C2 + l1 + l2)cosθ, (C2 + l1 + l2)sinθ)

[0049] Among them, C2 is the distance from the coordinate origin to point A, l1 is the distance between points A and B, and l2 is the distance between points B and C.

[0050] The suspension points D(x d , y d ), E(x e , y e ) satisfy the ellipse equation Among them, a and b are the major semi-axis and minor semi-axis of the ellipse respectively (note that this is the equation in the local coordinate system of the ellipse). According to the definition of the ellipse, for the ellipse curve 2, a = lb / 2, At the same time, when θ = 0, e = (x c - x b ) / 2

[0051] The suspension points D(x d , y d ), E(x e , y e ) also meet the requirement that the length of the wire rope remains unchanged, that is:

[0052]

[0053]

[0054] According to the above equations, an optimized hoisting mathematical model can be constructed:

[0055] Determine the optimization goal of hoisting as: the maximum force on the wire rope;

[0056] Determine the variable factors affecting the hoisting process as: the angle θ of the reinforcement cage being lifted. Among them, the range of variable changes is 0 ≤ θ ≤ 90, -0.5l b ≤ x d (in the local coordinate system), x e ≤ 0.5l b (in the local coordinate system), -b ≤ y d (in the local coordinate system), y e ≤ b (in the local coordinate system);

[0057] Determine the constraint conditions for hoisting as:

[0058] ① The suspension points D(x d , y d ), E(x e , y e ) satisfy the equation:

[0059]

[0060]

[0061] ② The suspension point D(xd , y d ), E(x e , y e ) satisfies the elliptic equation in the local coordinate system:

[0062]

[0063] When calculating the elliptic parameters according to the above formula, the positions of each point in the global coordinates need to be converted to the local coordinates. The moving point E corresponds to the elliptic curve 1 in the local coordinates x01y1, and the moving point D corresponds to the elliptic curve 2 in the local coordinates x02y2. The specific transformation formula is as shown in Equation where x and y are the coordinate variables in the global coordinates, and x' and y' are the coordinate variables in the local coordinates x01y1 and x02y2.

[0064] Step S106: According to the hoisting optimization mathematical model, optimize and search for the maximum force on the steel wire rope during the hoisting process through a simulation optimization algorithm;

[0065] Specifically, the simulation optimization algorithm is used to convert the dynamic problem of the steel cage hoisting into a quasi-static static problem. According to the hoisting optimization mathematical model, optimize and search for the maximum force on the steel wire rope during the hoisting process through a simulation optimization algorithm

[0066] Preferably, according to the hoisting optimization mathematical model, use CAE technology to establish a quasi-static static simulation optimization model, and optimize and search for the maximum force on the steel wire rope during the hoisting process.

[0067] Step S108: Select the corresponding steel wire rope according to the maximum force to complete the hoisting of the steel cage.

[0068] It should be noted that the dimensions of each physical quantity used in the embodiments of the present invention need to be unified. For example, if the International System of Units SI is adopted, the basic dimensions are: millimeter mm, kilogram kg, second s, then the dimension of force is N (Newton), and the dimensions of elastic modulus E and stress σ are MPa (N / mm 2 ). The Poisson's ratio μ and strain are dimensionless, and the dimension of angle is degree.

[0069] Through steps S102 to S108 in the embodiments of the present application, the problem that it is difficult to efficiently and accurately determine the force on the steel wire rope for the hoisting of the steel cage is solved. Based on the hoisting mechanical simulation model, the hoisting optimization mathematical model and the simulation optimization algorithm, the maximum force on the steel wire rope is searched and solved, and a suitable steel wire rope is selected to ensure the construction safety during the hoisting process.

[0070] It should be noted that the steps shown in the above process or the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than here.

[0071] An embodiment of the present application provides a steel cage hoisting system based on wire rope force calculation. Figure 4 It is a structural block diagram of the steel cage hoisting system based on wire rope force calculation according to the embodiment of the present application. As Figure 4 shown, the system includes a simulation model module 41, a mathematical model module 42, and a hoisting module 43;

[0072] The simulation model module 41 is used to construct a hoisting mechanical simulation model of the steel cage.

[0073] The mathematical model module 42 is used to construct a hoisting optimization mathematical model based on the hoisting mechanical simulation model; according to the hoisting optimization mathematical model, the maximum force of the wire rope during hoisting is optimized and solved by a simulation optimization algorithm.

[0074] The hoisting module 43 is used to select the corresponding wire rope according to the maximum force to complete the hoisting of the steel cage.

[0075] Through the simulation model module 41, the mathematical model module 42, and the hoisting module 43 in the embodiment of the present application, the problem that it is difficult to efficiently and accurately determine the force of the wire rope used for hoisting the steel cage is solved, and based on the hoisting mechanical simulation model, the hoisting optimization mathematical model, and the simulation optimization algorithm, the maximum force of the wire rope is searched and solved, and a suitable wire rope is selected to ensure the construction safety during the hoisting process.

[0076] In some of these embodiments, the mathematical model module 42 is further used to determine the hoisting optimization objective, the variable factors affecting the hoisting process, and the hoisting constraint conditions based on the hoisting mechanical simulation model; the hoisting optimization mathematical model is constructed from the optimization objective, variable factors, and constraint conditions.

[0077] In some of these embodiments, the simulation model module 41 is further used to construct a hoisting mechanical simulation model of the steel cage according to a simply supported beam at one end and a vertically upward acting force at the other end with equivalent bending stiffness.

[0078] In some of these embodiments, the simulation optimization algorithm is used to transform the dynamic problem of steel cage hoisting into a quasi-static static problem.

[0079] In some of these embodiments, the mathematical model module 42 is further used to establish a quasi-static static simulation optimization model using CAE technology to optimize and solve the maximum force of the wire rope during hoisting.

[0080] It should be noted that each of the above modules can be a functional module or a program module, and can be implemented either by software or by hardware. For the modules implemented by hardware, each of the above modules can be located in the same processor; or each of the above modules can be located in different processors in any combination form.

[0081] This embodiment also provides an electronic device, including a memory and a processor. A computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0082] Optionally, the above electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the above processor, and the input / output device is connected to the above processor.

[0083] It should be noted that the specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementation manners, and will not be repeated here.

[0084] In addition, in combination with the above-described steel cage hoisting method based on wire rope force calculation in the embodiment, the embodiment of the present application can be implemented by providing a storage medium. A computer program is stored on the storage medium; when the computer program is executed by a processor, any one of the above-described steel cage hoisting methods based on wire rope force calculation is implemented.

[0085] In one embodiment, a computer device is provided. The computer device can be a terminal. The computer device includes a processor, a memory, a network interface, a display screen, and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a steel cage hoisting method based on wire rope force calculation is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a button, a trackball, or a touchpad provided on the housing of the computer device, or an external keyboard, a touchpad, or a mouse, etc.

[0086] In one embodiment, Figure 5 is a schematic internal structure diagram of an electronic device according to an embodiment of the present application, as Figure 5As shown, an electronic device is provided. The electronic device can be a server, and its internal structure diagram can be as shown in Figure 5 . The electronic device includes a processor, a network interface, an internal memory, and a non-volatile memory connected through an internal bus. Among them, the non-volatile memory stores an operating system, a computer program, and a database. The processor is used to provide computing and control capabilities. The network interface is used to communicate with an external terminal through a network connection. The internal memory is used to provide an environment for the operation of the operating system and the computer program. When the computer program is executed by the processor, it implements a method for hoisting a steel cage based on the calculation of the force on a steel wire rope. The database is used to store data.

[0087] Those skilled in the art can understand that Figure 5 the structure shown in is only a block diagram of some structures related to the solution of this application, and does not constitute a limitation on the electronic device to which the solution of this application is applied. The specific electronic device may include more or fewer components than those shown in the figure, or combine some components, or have different component arrangements.

[0088] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, storage, database, or other medium used in the various embodiments provided in this application can include non-volatile and / or volatile memories. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or an external cache. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and Rambus dynamic RAM (RDRAM), etc.

[0089] Those skilled in the art should understand that the technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0090] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A lifting method for steel reinforcement cages based on wire rope force calculation, characterized in that, The method includes: Constructing a hoisting mechanical simulation model of the steel reinforcement cage; Based on the hoisting mechanical simulation model, determine the optimization objectives of hoisting, the variable factors affecting the hoisting process, and the constraints of hoisting. Among them, the steel reinforcement cage is hoisted by three points, BDC and AED are each a steel wire rope, and A(x a , y a ), B(x b , y b ), C(x c , y c ) are the fixed positions of the steel wire ropes on the steel reinforcement cage, and the hoisting points D(x d , y d ), E(x e , y e ) change with the change of the angle between the steel reinforcement cage and the hoisting angle. The length of the steel wire rope AED l a is equal to the length of AE l 11 plus the length of DE l 12 , and the length of the steel wire rope BDC l b is equal to the length of BD l 21 plus the length of CD l 22 , and l a = l b . The movement trajectories of the hoisting points D and E are ellipses. A and D are the foci of the ellipse curve of the trajectory of the hoisting point E, and B and C are the foci of the ellipse curve of the trajectory of the hoisting point D. The hoisting points D and E also meet the requirement of the constant length of the steel wire rope, that is, they satisfy the equation: Constructing a hoisting optimization mathematical model from the optimization objective, the variable factors, and the constraint conditions, where the optimization objective is the maximum force on the steel wire rope, the variable factor is the angle θ at which the steel reinforcement cage is lifted, and the value range is 0 to 90°; According to the hoisting optimization mathematical model, using CAE technology to establish a quasi-static static mechanical simulation optimization model, and optimizing and searching for the maximum force on the steel wire rope during hoisting; Selecting the corresponding steel wire rope according to the maximum force to complete the hoisting of the steel reinforcement cage.

2. The method according to claim 1, wherein Constructing a hoisting mechanical simulation model of the steel reinforcement cage includes: Constructing a hoisting mechanical simulation model of the steel reinforcement cage according to a beam with one end simply supported and the other end subjected to a vertically upward acting force with equivalent bending stiffness.

3. A steel cage hoisting system based on wire rope stress calculation, characterized in that, The system includes a simulation model module, a mathematical model module, and a hoisting module; The simulation model module is used to construct a hoisting mechanical simulation model of the steel reinforcement cage; The mathematical model module is used to determine the optimization objectives of lifting, the variable factors affecting the lifting process, and the constraints of lifting on the basis of the lifting mechanics simulation model. Among them, the steel reinforcement cage is lifted by three points, BDC and AED are each a steel wire rope, and A(x a , y a ), B(x b , y b ), C(x c , y c ) are the fixed positions of the steel wire ropes on the steel reinforcement cage, and the lifting points D(x d , y d ), E(x e , y e ) change with the change of the steel reinforcement cage and the lifting angle. The length of the steel wire rope AED l a is equal to the length of AE l 11 plus the length of DE l 12 . The length of the steel wire rope BDC l b is equal to the length of BD l 21 plus the length of CD l 22 , and l a = l b . The movement trajectories of the lifting points D and E are ellipses. A and D are the foci of the ellipse curve of the trajectory of the lifting point E, and B and C are the foci of the ellipse curve of the trajectory of the lifting point D. The lifting points D and E also meet the requirement that the length of the steel wire rope remains unchanged, that is, they satisfy the equation: Constructing a hoisting optimization mathematical model from the optimization objective, the variable factors, and the constraint conditions, where the optimization objective is the maximum force on the steel wire rope, the variable factor is the angle θ at which the steel reinforcement cage is lifted, and the value range is 0 to 90°; According to the hoisting optimization mathematical model, using CAE technology to establish a quasi-static static mechanical simulation optimization model, and optimizing and searching for the maximum force on the steel wire rope during hoisting; The hoisting module is used to select the corresponding steel wire rope according to the maximum force to complete the hoisting of the steel reinforcement cage.

4. The system according to claim 3, characterized in that, The simulation model module is also used to construct a hoisting mechanical simulation model of the steel reinforcement cage according to a beam with one end simply supported and the other end subjected to a vertically upward acting force with equivalent bending stiffness.

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