Nodal load calculation method and related device for modular steel structure

Abstract

The present application relates to the technical field of component load testing, and provides a method for calculating node loads of modular steel structures and related devices, the method comprising: constructing a modular semi-steel structure model; extracting beam-column member parameter data corresponding to a target node from the modular semi-steel structure model; determining a horizontal load value at yield of an upper module column top according to the beam-column member parameter data; determining a connection node load according to the horizontal load value at yield of the upper module column top, and obtaining a calculation result of the connection node load, which can utilize the semi-rigid characteristics of the connection node, construct a semi-rigid structure model, and calculate the node load required for the semi-rigid modular steel structure by extrapolating the beam-column member parameter data, thereby improving the accuracy of the node load calculation.

Description

Technical Field

[0001] The present application relates to the technical field of component load testing, and in particular to a method for calculating node loads of a modular steel structure and a related device. Background Art

[0002] With the rapid development of building industrialization, modular steel structure buildings, as a highly integrated prefabricated building form, have gradually become an important development direction in the field of modern construction due to their significant advantages such as high construction efficiency, low environmental pollution, and flexible and changeable structure. In modular steel structures, connection nodes are the key link for transmitting force and deformation between module units. The accurate evaluation of their mechanical properties is crucial to ensure the safety and stability of the entire structural system.

[0003] Traditionally, the connection nodes of modular steel structures are mainly divided into rigid connection nodes and hinged connection nodes based on their stiffness characteristics. However, in actual engineering applications, many connection nodes exhibit semi-rigid characteristics, that is, they are neither completely rigid nor completely hinged. The mechanical properties of such semi-rigid connection nodes are complex and have a significant impact on the load transfer in the node domain, but the existing calculation methods often fail to fully consider this characteristic, resulting in insufficient accuracy in calculating node loads. Summary of the invention

[0004] The embodiment of the present application provides a node load calculation method and related device for a modular steel structure, which can take into account the semi-rigid characteristics of the connection nodes, construct a semi-rigid structural model, and calculate the node loads required for the semi-rigid modular steel structure by extrapolating the parameter data of the beam-column rods, thereby improving the accuracy of the node load calculation.

[0005] A first aspect of an embodiment of the present application provides a method for calculating node loads of a modular steel structure, the method comprising:

[0006] Construct modular semi-steel structure models;

[0007] Extracting beam-column member parameter data corresponding to the target node from the modular semi-steel structure model;

[0008] Determine the horizontal load value at the yield time of the upper module column top according to the beam-column member parameter data;

[0009] The connection node load is determined according to the horizontal load value at the yield time of the upper module column top, and the connection node load calculation result is obtained.

[0010] Further, according to the beam-column member parameter data, the horizontal load value at the yield time of the upper module column top is determined, including:

[0011] Calculate the plastic bending bearing capacity of the entire cross-section of the beam and column according to the beam and column member parameter data;

[0012] Calculate the semi-structure inflection point force value according to the full-section plastic bending bearing capacity of the beam and column;

[0013] According to the semi-structure inflection point force value, the lateral bearing capacity of the upper module column, the floor beam, the ceiling beam and the lower module column is calculated by the displacement method when the full-section plastic bending bearing capacity is calculated;

[0014] According to the lateral bearing capacity of the full-section plastic bending bearing capacity of the upper module column, the floor beam, the ceiling beam and the lower module column, the horizontal load value at yield of the upper module column top is determined.

[0015] Furthermore, according to the beam-column member parameter data, the plastic bending bearing capacity of the entire cross-section of the beam-column is calculated, including:

[0016] Extracting the plastic section modulus of the beam-column section and the steel yield strength value from the beam-column member parameter data;

[0017] The plastic bending bearing capacity of the entire cross-section of the beam and column is calculated based on the plastic section modulus of the beam and column cross-section and the yield strength value of the steel.

[0018] Furthermore, according to the full-section plastic bending bearing capacity of the beam column, the reaction force value at the inflection point of the semi-structure is calculated, including:

[0019] Extracting the length value of the beam-column member from the beam-column member parameter data;

[0020] According to the length value of the beam-column member and the plastic bending bearing capacity of the full cross-section of the beam-column, the reaction force value at the inflection point of the semi-structure is calculated.

[0021] Further, according to the lateral bearing capacity of the full-section plastic bending bearing capacity of the upper module column, the floor beam, the ceiling beam and the lower module column, the horizontal load value at yield of the upper module column top is determined, including:

[0022] Compare the lateral bearing capacity of the upper module column at the full-section plastic bending bearing capacity, the lateral bearing capacity of the floor beam at the full-section plastic bending bearing capacity, the lateral bearing capacity of the ceiling beam at the full-section plastic bending bearing capacity, and the lateral bearing capacity of the lower module column at the full-section plastic bending bearing capacity to obtain a lateral bearing capacity comparison result;

[0023] According to the lateral bearing capacity comparison result, the minimum lateral bearing capacity at the time of the full-section plastic bending bearing capacity is determined, and the horizontal load value at the yield time of the upper module column top is obtained.

[0024] In this example, a modular semi-steel structure model is first constructed, and then the beam-column member parameter data corresponding to the target node to be calculated is extracted from the modular semi-steel structure model, and the horizontal load value at the time of yield of the upper module column top is calculated according to the beam-column member parameter data. Finally, the connection node load is determined by the horizontal load value at the time of yield of the module column top, so as to obtain the calculation result of the connection node load. The semi-rigid characteristics of the connection node can be considered. By calculating the beam-column member parameter data of the semi-rigid structure model, the node load required for the semi-rigid modular steel structure is calculated, and the accuracy of the node load calculation is improved to solve the problem that the existing modular steel structure connection node calculation method fails to fully consider the significant influence of the semi-rigid connection node on the node domain load transfer, resulting in insufficient accuracy in calculating the node load.

[0025] A second aspect of an embodiment of the present application provides a node load calculation device for a modular steel structure, the device comprising:

[0026] A first acquisition unit is used to acquire product demand information of the user, wherein the product demand information includes function information of the target business product;

[0027] A first processing unit is used to construct a modular semi-steel structure model;

[0028] A second processing unit is used to extract beam-column member parameter data corresponding to a target node from the modular semi-steel structure model;

[0029] A first determination unit is used to determine the horizontal load value of the upper module column top at yield time according to the beam column member parameter data;

[0030] The second determination unit is used to determine the connection node load according to the horizontal load value at yield time of the upper module column top.

[0031] Further, in the aspect of determining the horizontal load value of the upper module column top at yield time according to the beam-column member parameter data, the first determining unit is used to:

[0032] Calculate the plastic bending bearing capacity of the entire cross-section of the beam and column according to the beam and column member parameter data;

[0033] Calculate the semi-structure inflection point force value according to the full-section plastic bending bearing capacity of the beam and column;

[0034] According to the semi-structure inflection point force value, the lateral bearing capacity of the upper module column, the floor beam, the ceiling beam and the lower module column is calculated by the displacement method when the full-section plastic bending bearing capacity is calculated;

[0035] According to the lateral bearing capacity of the full-section plastic bending bearing capacity of the upper module column, the floor beam, the ceiling beam and the lower module column, the horizontal load value at yield of the upper module column top is determined.

[0036] Further, in the aspect of calculating the lateral bearing capacity of the full-section plastic bending bearing capacity of the upper module column, the floor beam, the ceiling beam and the lower module column respectively according to the semi-structure inflection point force value by using the displacement method, the first determining unit is used to:

[0037] Compare the lateral bearing capacity of the upper module column at the full-section plastic bending bearing capacity, the lateral bearing capacity of the floor beam at the full-section plastic bending bearing capacity, the lateral bearing capacity of the ceiling beam at the full-section plastic bending bearing capacity, and the lateral bearing capacity of the lower module column at the full-section plastic bending bearing capacity to obtain a lateral bearing capacity comparison result;

[0038] According to the lateral bearing capacity comparison result, the minimum lateral bearing capacity at the time of the full-section plastic bending bearing capacity is determined, and the horizontal load value at the yield time of the upper module column top is obtained.

[0039] A third aspect of an embodiment of the present application provides a terminal, comprising a processor, an input device, an output device and a memory, wherein the processor, input device, output device and memory are interconnected, wherein the memory is used to store a computer program, the computer program comprises program instructions, and the processor is configured to call the program instructions to execute the step instructions of the node load calculation method of the modular steel structure in the first aspect of the embodiment of the present application.

[0040] The fourth aspect of an embodiment of the present application provides a computer-readable storage medium, wherein the above-mentioned computer-readable storage medium stores a computer program for electronic data exchange, wherein the above-mentioned computer program enables the computer to execute part or all of the steps described in the node load calculation method of the modular steel structure in the first aspect of the embodiment of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 A schematic diagram of the overall flow of a method for calculating node loads of a modular steel structure is provided for an embodiment of the present application;

[0043] Figure 2 A schematic diagram of a modular semi-steel structure model constructed in a method for calculating node loads of a modular steel structure is provided for an embodiment of the present application;

[0044] Figure 3A flowchart of specific calculation steps for the horizontal load value at the yield time of the upper module column top of a method for calculating the node load of a modular steel structure is provided for an embodiment of the present application;

[0045] Figure 4A A schematic diagram of a scenario in which an upper module column yields first in a method for calculating a node load of a modular steel structure is provided for an embodiment of the present application;

[0046] Figure 4B A schematic diagram of a scenario in which a floor beam yields first in a method for calculating a node load of a modular steel structure is provided for an embodiment of the present application;

[0047] Figure 4C A schematic diagram of a scenario in which a ceiling beam yields first in a method for calculating a node load of a modular steel structure is provided for an embodiment of the present application;

[0048] Figure 4D A schematic diagram of a scenario in which a lower module column yields first in a method for calculating a node load of a modular steel structure is provided for an embodiment of the present application;

[0049] Figure 5 A schematic diagram of calculating node internal force values ​​using a displacement method of a node load calculation method for a modular steel structure is provided for an embodiment of the present application;

[0050] Figure 6 A schematic structural diagram of a node load calculation device for a modular steel structure is provided for an embodiment of the present application;

[0051] Figure 7 A schematic diagram of the structure of a terminal provided in an embodiment of the present application;

[0052] Reference numerals:

[0053] Upper module column-1, floor beam-2, ceiling beam-3, lower module column-4, connection node-5, first acquisition unit-6, first processing unit-7, second processing unit-8, first determination unit-9, second determination unit-10. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0055] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0056] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0057] In order to better understand the node load calculation method of a modular steel structure provided in the embodiment of the present application, the following first briefly introduces the scenario of applying the node load calculation method of a modular steel structure. In actual engineering applications, many connection nodes exhibit semi-rigid characteristics that are neither completely rigid nor completely hinged. The mechanical properties of such semi-rigid connection nodes are complex and have a significant impact on the node domain load transfer, but the existing calculation methods often fail to fully consider this characteristic, resulting in insufficient accuracy in calculating node loads.

[0058] The node load calculation method of modular steel structure is applied to the node load calculation device of modular steel structure. Figure 1 A schematic diagram of the overall flow of a method for calculating node loads in a modular steel structure is shown. Figure 2 The schematic diagram of the constructed modular semi-steel structure model is shown in FIG. Figure 1 and Figure 2 As shown, including:

[0059] S1. Construct a modular semi-steel structure model. Specifically, the constructed modular semi-steel structure model is as follows: Figure 2 As shown, a simplified mechanical model is established by taking the upper module column, floor beam, ceiling beam, lower module column and connection node within the range of the beam-column inflection point.

[0060] S2. Extracting beam-column member parameter data corresponding to the target node from the modular semi-steel structure model, namely the beam-column member size parameters selected in the modular semi-steel structure model, which are used to calculate the full-section plastic bending bearing capacity Mpi of the beam and column.

[0061] S3. Determine the horizontal load value of the upper module column top at yield time according to the beam column member parameter data. Figure 3 A flowchart showing the specific calculation steps of the horizontal load value at the yield time of the upper module column top of a node load calculation method for a modular steel structure, including:

[0062] S301, calculating the plastic bending bearing capacity of the entire cross-section of the beam and column according to the beam and column member parameter data. Specifically, it includes:

[0063] The plastic section modulus of the beam-column section and the steel yield strength value are extracted from the beam-column member parameter data.

[0064] According to the plastic section modulus of the beam-column section and the steel yield strength value, the plastic bending bearing capacity of the full section of the beam-column is calculated. The calculation formula of the plastic bending bearing capacity of the full section is as follows:

[0065] M pi =W pi f y

[0066] Among them, M pi is the plastic bending bearing capacity of the beam-column section, W pi refers to the plastic section modulus of the beam-column section, f y is the yield strength of steel.

[0067] S302, calculating the semi-structure inflection point force value according to the full-section plastic bending bearing capacity of the beam column. Specifically, the semi-structure inflection point force value calculation formula is as follows:

[0068] F pi =M pi / L i

[0069] Among them, F pi It refers to the shear force value at the inflection point when the beam-column section reaches the plastic bending bearing capacity of the section; L i is the length of the beam-column member, M pi It is the plastic bending bearing capacity of the beam-column section.

[0070] S303, according to the semi-structure inflection point force value, using the displacement method to calculate the lateral bearing capacity of the upper module column, floor beam, ceiling beam and lower module column when the full-section plastic bending bearing capacity is calculated. Specifically, Figure 4A A schematic diagram showing a method for calculating the node load of a modular steel structure in which the upper module column yields first. Figure 4B A schematic diagram showing a scenario where the floor beam yields first in a method for calculating the node load of a modular steel structure. Figure 4C Schematic diagram of a ceiling beam yielding first scenario showing a method for calculating nodal loads in a modular steel structure. Figure 4D A schematic diagram of a method for calculating the node load of a modular steel structure in which the lower module column yields first is shown. FIG. 4A to FIG. 4D As shown, based on structural mechanics, the lateral bearing capacity F of the upper module column 1, floor beam 2, ceiling beam 3 and lower module column 4 when the full section plastic bending bearing capacity is reached is calculated respectively. vi (i=1~4).

[0071] There are two cases for obtaining the horizontal load value of the upper module column top:

[0072] ① When the upper module column or the lower module column yields before the module beam, the horizontal force value at the top of the upper module column is as shown in the following formula.

[0073] F vi =F pi (i=1,4)

[0074] ②Since the upper module and the entire half structure are in a state of static equilibrium, the following formula can be obtained.

[0075]

[0076] Then we can get the static equilibrium formula:

[0077]

[0078] When the floor beam yields before the upper and lower module columns and ceiling beams, first calculate Z1 according to the following formula. Substituting Z1 into the static equilibrium formula, the horizontal force Fv2 at the top of the upper module column and the rotation angle Z2 of the ceiling beam can be obtained.

[0079]

[0080] Similarly, when the ceiling beam yields before the upper and lower module columns and floor beams, first calculate Z2 according to the following formula.

[0081] Substituting Z2 into the static equilibrium formula, we can obtain the horizontal force Fv3 at the top of the upper module column and the floor beam rotation angle Z1.

[0082]

[0083] S304, determining the horizontal load value of the upper module column top at yield according to the lateral bearing capacity of the full-section plastic bending bearing capacity of the upper module column, floor beam, ceiling beam and lower module column. Specifically, including:

[0084] The lateral bearing capacity of the upper module column at the full section plastic bending bearing capacity, the lateral bearing capacity of the floor beam at the full section plastic bending bearing capacity, the lateral bearing capacity of the ceiling beam at the full section plastic bending bearing capacity and the lateral bearing capacity of the lower module column at the full section plastic bending bearing capacity are compared to obtain a comparison result of the lateral bearing capacity. Specifically, the comparison result is obtained by sorting them in order according to the size of the lateral bearing capacity.

[0085] According to the lateral bearing capacity comparison results, the minimum lateral bearing capacity at the time of full-section plastic bending bearing capacity is determined, and the horizontal load value at the yield time of the upper module column top is obtained, that is, the minimum value is extracted from the four lateral bearing capacity values ​​in the comparison results, which is the actual lateral bearing capacity calculation value of the semi-structural calculation model, and the horizontal load value at the yield time of the upper module column top is obtained. The calculation formula is as follows:

[0086] F v =min{F vi (i=1,2,3,4)}

[0087] Among them, F v is the horizontal load value at the yield time of the upper module column top, F v1 is the lateral bearing capacity of the upper module column when the entire section is plastic bending bearing capacity, F v2 is the lateral bearing capacity of the full-section plastic bending bearing capacity of the floor beam, F v3 is the lateral bearing capacity of the full-section plastic bending bearing capacity of the ceiling beam, F v4 It is the lateral bearing capacity of the full section plastic bending bearing capacity of the lower module column.

[0088] S4. Determine the connection node load according to the horizontal load value at yield of the upper module column top to obtain a connection node load calculation result. Figure 5 A schematic diagram showing a method for calculating the node internal force value of a modular steel structure node load using a displacement method is shown in FIG. Figure 5 As shown, the specific calculation process is as follows:

[0089] according to Figure 5 The classical equation is:

[0090]

[0091] Where: let in = EIn / Ln (n = 1, 2, 3, 4), In and Ln are the section inertia moment and length of the upper module column, bottom plate beam, ceiling beam and lower module column respectively.

[0092] Through the classical equation, we can get Z1, Z2, and Z3 under the action of horizontal force Fv.

[0093] The bending moment value M0 at the connection node can be obtained:

[0094] M0=M BC -M BA =k0×(Z2-Z1)

[0095]

[0096] F v0 =F v

[0097] Among them, M0, F N0 and F V0 They are the bending moment, tension and shear force values ​​transmitted by the connection nodes respectively.

[0098] In this example, a modular semi-steel structure model is first constructed, and then the beam-column member parameter data corresponding to the target node to be calculated is extracted from the modular semi-steel structure model, and the horizontal load value at the time of yield of the upper module column top is calculated according to the beam-column member parameter data. Finally, the connection node load is determined by the horizontal load value at the time of yield of the module column top, so as to obtain the calculation result of the connection node load. The semi-rigid characteristics of the connection node can be considered. By calculating the beam-column member parameter data of the semi-rigid structure model, the node load required for the semi-rigid modular steel structure is calculated, and the accuracy of the node load calculation is improved to solve the problem that the existing modular steel structure connection node calculation method fails to fully consider the significant influence of the semi-rigid connection node on the node domain load transfer, resulting in insufficient accuracy in calculating the node load.

[0099] In line with the above, see Figure 6 , Figure 6 The present invention provides a schematic diagram of a node load calculation device for a modular steel structure. Figure 6 As shown, the device comprises:

[0100] A first acquisition unit 6 is used to acquire the user's product demand information, wherein the product demand information includes function information of the target business product;

[0101] The first processing unit 7 is used to construct a modular semi-steel structure model;

[0102] The second processing unit 8 is used to extract beam-column member parameter data corresponding to the target node from the modular semi-steel structure model;

[0103] A first determination unit 9 is used to determine the horizontal load value of the upper module column top at yield time according to the beam column member parameter data;

[0104] The second determination unit 10 is used to determine the connection node load according to the horizontal load value at yield time of the upper module column top.

[0105] In a possible implementation, in the aspect of determining the horizontal load value of the upper module column top at yield according to the beam-column member parameter data, the first determining unit is used to:

[0106] Calculate the plastic bending bearing capacity of the entire cross-section of the beam and column according to the beam and column member parameter data;

[0107] Calculate the semi-structure inflection point force value according to the full-section plastic bending bearing capacity of the beam and column;

[0108] According to the semi-structure inflection point force value, the lateral bearing capacity of the upper module column, the floor beam, the ceiling beam and the lower module column is calculated by the displacement method when the full-section plastic bending bearing capacity is calculated;

[0109] According to the lateral bearing capacity of the full-section plastic bending bearing capacity of the upper module column, the floor beam, the ceiling beam and the lower module column, the horizontal load value at yield of the upper module column top is determined.

[0110] In a possible implementation, in the aspect of calculating the lateral bearing capacity of the full-section plastic bending bearing capacity of the upper module column, the floor beam, the ceiling beam and the lower module column respectively by using the displacement method according to the semi-structure inflection point force value, the first determining unit is used to:

[0111] Compare the lateral bearing capacity of the upper module column at the full-section plastic bending bearing capacity, the lateral bearing capacity of the floor beam at the full-section plastic bending bearing capacity, the lateral bearing capacity of the ceiling beam at the full-section plastic bending bearing capacity, and the lateral bearing capacity of the lower module column at the full-section plastic bending bearing capacity to obtain a lateral bearing capacity comparison result;

[0112] According to the lateral bearing capacity comparison result, the minimum lateral bearing capacity at the time of the full-section plastic bending bearing capacity is determined, and the horizontal load value at the yield time of the upper module column top is obtained.

[0113] In this example, a modular semi-steel structure model is first constructed, and then the beam-column member parameter data corresponding to the target node to be calculated is extracted from the modular semi-steel structure model. The horizontal load value at yield of the upper module column top is deduced according to the beam-column member parameter data. Finally, the connection node load is determined by the horizontal load value at yield of the module column top, so as to obtain the connection node load calculation result. The semi-rigid characteristics of the connection node can be considered. By calculating the beam-column member parameter data of the semi-rigid structure model, the node load required for the semi-rigid modular steel structure is calculated, and the accuracy of the node load calculation is improved to solve the problem that the existing modular steel structure connection node calculation method fails to fully consider the significant influence of the semi-rigid connection node on the node domain load transfer, resulting in insufficient accuracy in calculating the node load.

[0114] For the above embodiments, please refer to Figure 7 , Figure 7 A schematic diagram of the structure of a terminal provided in an embodiment of the present application, as shown in the figure, includes a processor, an input device, an output device and a memory, the processor, the input device, the output device and the memory are interconnected, wherein the memory is used to store a computer program, the computer program includes program instructions, the processor is configured to call the program instructions, and the program includes instructions for executing the following steps;

[0115] Construct modular semi-steel structure models;

[0116] Extracting beam-column member parameter data corresponding to the target node from the modular semi-steel structure model;

[0117] Determine the horizontal load value at the yield time of the upper module column top according to the beam-column member parameter data;

[0118] The connection node load is determined according to the horizontal load value at the yield time of the upper module column top, and the connection node load calculation result is obtained.

[0119] In this example, a modular semi-steel structure model is first constructed, and then the beam-column member parameter data corresponding to the target node to be calculated is extracted from the modular semi-steel structure model. The horizontal load value at yield of the upper module column top is deduced according to the beam-column member parameter data. Finally, the connection node load is determined by the horizontal load value at yield of the module column top, so as to obtain the connection node load calculation result. The semi-rigid characteristics of the connection node can be considered. By calculating the beam-column member parameter data of the semi-rigid structure model, the node load required for the semi-rigid modular steel structure is calculated, and the accuracy of the node load calculation is improved to solve the problem that the existing modular steel structure connection node calculation method fails to fully consider the significant influence of the semi-rigid connection node on the node domain load transfer, resulting in insufficient accuracy in calculating the node load.

[0120] The above mainly introduces the scheme of the embodiment of the present application from the perspective of the execution process on the method side. It is understandable that in order to realize the above functions, the terminal includes a hardware structure and / or software module corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments provided herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0121] The embodiment of the present application can divide the terminal into functional units according to the above method example. For example, each functional unit can be divided according to each function, or two or more functions can be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of software functional units. It should be noted that the division of units in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0122] An embodiment of the present application also provides a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of any method for calculating node loads of modular steel structures as recorded in the above method embodiments.

[0123] An embodiment of the present application also provides a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program enables a computer to execute part or all of the steps of any method for calculating the node load of a modular steel structure as recorded in the above method embodiments.

[0124] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0125] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0126] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the device or unit can be electrical or other forms.

[0127] The units described as separate components may or may not be physically separated, and the components shown as units 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 units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0128] In addition, the functional units in the various embodiments of the application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware or in the form of software program modules.

[0129] If the integrated unit is implemented in the form of a software program module and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a memory, including a number of instructions to enable a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned memory includes: U disk, read-only memory (ROM), random access memory (RAM), mobile hard disk, disk or optical disk and other media that can store program codes.

[0130] A person of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable memory, which can include: a flash drive, a read-only memory, a random access memory, a magnetic disk or an optical disk, etc.

[0131] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A method for calculating node loads of modular steel structures, characterized in that: include: Construct modular semi-steel structure models; Extracting beam-column member parameter data corresponding to the target node from the modular semi-steel structure model; Determine the horizontal load value at the yield time of the upper module column top according to the beam-column member parameter data; The connection node load is determined according to the horizontal load value at the yield time of the upper module column top, and the connection node load calculation result is obtained.

2. The method for calculating node loads of modular steel structures according to claim 1, characterized in that: According to the beam-column member parameter data, the horizontal load value at the yield time of the upper module column top is determined, including: Calculate the plastic bending bearing capacity of the entire cross-section of the beam and column according to the beam and column member parameter data; Calculate the semi-structure inflection point force value according to the full-section plastic bending bearing capacity of the beam and column; According to the semi-structure inflection point force value, the lateral bearing capacity of the upper module column, the floor beam, the ceiling beam and the lower module column is calculated by the displacement method when the full-section plastic bending bearing capacity is calculated; According to the lateral bearing capacity of the full-section plastic bending bearing capacity of the upper module column, the floor beam, the ceiling beam and the lower module column, the horizontal load value at yield of the upper module column top is determined.

3. The method for calculating node loads of modular steel structures according to claim 2, characterized in that: According to the beam-column member parameter data, the plastic bending bearing capacity of the entire cross-section of the beam and column is calculated, including: Extracting the plastic section modulus of the beam-column section and the steel yield strength value from the beam-column member parameter data; The plastic bending bearing capacity of the entire cross-section of the beam and column is calculated based on the plastic section modulus of the beam and column cross-section and the yield strength value of the steel.

4. The method for calculating node loads of modular steel structures according to claim 2, characterized in that: According to the full-section plastic bending bearing capacity of the beam column, the reaction force value at the semi-structure inflection point is calculated, including: Extracting the length value of the beam-column member from the beam-column member parameter data; According to the length value of the beam-column member and the plastic bending bearing capacity of the full cross-section of the beam-column, the reaction force value at the inflection point of the semi-structure is calculated.

5. The method for calculating node loads of modular steel structures according to claim 2, characterized in that: According to the lateral bearing capacity of the full-section plastic bending bearing capacity of the upper module column, the floor beam, the ceiling beam and the lower module column, the horizontal load value at yield of the upper module column top is determined, including: Compare the lateral bearing capacity of the upper module column at the full-section plastic bending bearing capacity, the lateral bearing capacity of the floor beam at the full-section plastic bending bearing capacity, the lateral bearing capacity of the ceiling beam at the full-section plastic bending bearing capacity, and the lateral bearing capacity of the lower module column at the full-section plastic bending bearing capacity to obtain a lateral bearing capacity comparison result; According to the lateral bearing capacity comparison result, the minimum lateral bearing capacity at the time of the full-section plastic bending bearing capacity is determined, and the horizontal load value at the yield time of the upper module column top is obtained.

6. A node load calculation device for modular steel structure, characterized in that: The device comprises: A first acquisition unit is used to acquire product demand information of the user, wherein the product demand information includes function information of the target business product; A first processing unit is used to construct a modular semi-steel structure model; A second processing unit is used to extract beam-column member parameter data corresponding to a target node from the modular semi-steel structure model; A first determination unit is used to determine the horizontal load value of the upper module column top at yield time according to the beam column member parameter data; The second determination unit is used to determine the connection node load according to the horizontal load value at yield time of the upper module column top.

7. The node load calculation device for modular steel structure according to claim 6, characterized in that: In the aspect of determining the horizontal load value of the upper module column top at yield time according to the beam-column member parameter data, the first determining unit is used to: Calculate the plastic bending bearing capacity of the entire cross-section of the beam and column according to the beam and column member parameter data; Calculate the semi-structure inflection point force value according to the full-section plastic bending bearing capacity of the beam and column; According to the semi-structure inflection point force value, the lateral bearing capacity of the upper module column, the floor beam, the ceiling beam and the lower module column is calculated by the displacement method when the full-section plastic bending bearing capacity is calculated; According to the lateral bearing capacity of the full-section plastic bending bearing capacity of the upper module column, the floor beam, the ceiling beam and the lower module column, the horizontal load value at yield of the upper module column top is determined.

8. The node load calculation device for modular steel structure according to claim 7, characterized in that: In the aspect of calculating the lateral bearing capacity of the full-section plastic bending bearing capacity of the upper module column, the floor beam, the ceiling beam and the lower module column respectively by using the displacement method according to the semi-structure inflection point force value, the first determining unit is used to: Compare the lateral bearing capacity of the upper module column at the full-section plastic bending bearing capacity, the lateral bearing capacity of the floor beam at the full-section plastic bending bearing capacity, the lateral bearing capacity of the ceiling beam at the full-section plastic bending bearing capacity, and the lateral bearing capacity of the lower module column at the full-section plastic bending bearing capacity to obtain a lateral bearing capacity comparison result; According to the lateral bearing capacity comparison result, the minimum lateral bearing capacity at the time of the full-section plastic bending bearing capacity is determined, and the horizontal load value at the yield time of the upper module column top is obtained.

9. A terminal, characterized in that: The method comprises a processor, an input device, an output device and a memory, wherein the processor, the input device, the output device and the memory are interconnected, wherein the memory is used to store a computer program, the computer program comprises program instructions, and the processor is configured to call the program instructions to execute the method according to any one of claims 1 to 5 for calculating the node load of a modular steel structure.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the processor executes the method according to any one of claims 1 to 5 for calculating node loads of a modular steel structure.

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