Construction stress feedback method and device based on staged temperature measurement

Abstract

The application discloses a structure construction stress feedback method and device based on staged temperature measurement, which comprises the following steps: determining each structure group in the construction process of the statically indeterminate structure, wherein the structure group is a structure component group in the same construction stage and forms a statically indeterminate system with the statically indeterminate structure; obtaining the initial temperature when the constructed structure group is constructed and the stage temperature of the constructed structure group in the t construction stage through a preset sensor; determining the temperature action influence value of the constructed structure group in the t construction stage based on the initial temperature and the stage temperature; determining the first stiffness matrix of the constructed structure group and the second stiffness matrix of the unconstructed structure group; and determining the stress feedback value of the statically indeterminate structure in the t construction stage according to the first stiffness matrix, the second stiffness matrix and the temperature action influence value of the constructed structure group, so that the accuracy of the stress performance analysis of the statically indeterminate structure is improved, potential safety hazards and quality problems are avoided, and the construction process of the statically indeterminate structure is optimized.

Description

Technical Field

[0001] This invention belongs to the field of statically indeterminate structure technology, specifically relating to a structural construction force feedback method and device based on staged temperature measurements. Background Technology

[0002] Statically indeterminate structures are geometrically invariant structural systems with redundant constraints, and are frequently used in practical engineering. Any structure whose constraint forces and internal forces cannot be determined using static equilibrium equations is collectively referred to as a statically indeterminate structure or system. The design of statically indeterminate spatial structures typically uses a uniform temperature field as the standard for applying temperature effects to the overall structural model for temperature effect analysis. However, during construction, statically indeterminate structures are continuously assembled from multiple different temporary force-bearing systems. These different force-bearing systems, along with the formation of the statically indeterminate structural system, exhibit deformation constraints during construction. Furthermore, different temporary force-bearing systems have different initial temperatures upon completion, resulting in uneven temperature effects on the components after forming. These constraints limit the structure's temperature deformation, thereby generating temperature stress. Therefore, construction simulations of statically indeterminate steel structures considering only a uniform temperature field cannot accurately reflect the temperature effects after structural formation and the evolution of the stress performance of the temporary force-bearing systems during construction. To ensure safe construction, it is necessary to conduct real-time analysis of the temperature response of the statically indeterminate system during construction and obtain structural stress feedback.

[0003] In existing technologies, the stress feedback of statically indeterminate structures is usually obtained by dividing the construction process into different construction structure groups under uniform temperature conditions, assembling each construction structure group step by step, and analyzing the stress feedback of the structure at each stage of construction. This approach ignores the formation sequence of the statically indeterminate structure during the construction process and the non-uniform temperature effect at each stage of construction, and cannot accurately reflect the stress performance of the structure during construction.

[0004] Therefore, how to improve the accuracy of stress performance analysis of statically indeterminate structures, avoid potential safety hazards and quality problems, and optimize the construction process of statically indeterminate structures is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to solve the technical problem of inaccurate force feedback in statically indeterminate structures in the prior art.

[0006] To achieve the above technical objectives, on the one hand, the present invention provides a structural construction stress feedback method based on staged temperature measurement, the method comprising:

[0007] Determine each structural group during the construction process of the statically indeterminate structure. The structural group is a group of structural components that are in the same construction stage and form a statically indeterminate system with the statically indeterminate structure.

[0008] The initial temperature of the constructed structure group during its construction and the stage temperature of the constructed structure group during construction phase t are obtained by pre-set sensors.

[0009] The influence value of temperature on the constructed structure group at construction stage t is determined based on the initial temperature and stage temperature.

[0010] Determine the first stiffness matrix of the constructed structure group and the second stiffness matrix of the unconstructed structure group;

[0011] The force feedback value of the statically indeterminate structure at construction stage t is determined based on the first stiffness matrix, the second stiffness matrix, and the temperature effect value of the constructed structure group.

[0012] Furthermore, the initial temperature is specifically a temperature matrix composed of the initial temperatures of each constructed component in the constructed structure group, and the stage temperature is specifically a temperature matrix composed of the stage temperatures of each constructed component in the constructed structure group during the t construction stage.

[0013] Furthermore, the temperature effect value is specifically the difference between the stage temperature and the initial temperature.

[0014] Furthermore, the first stiffness matrix and the second stiffness matrix are square matrices arranged according to the displacement order of the components in the structural group, and each element therein is the nodal force under the action of nodal displacement in the statically indeterminate structure, wherein the node is the position where two components are connected. Determining the first stiffness matrix of the constructed structural group specifically includes:

[0015] Determine the stiffness matrix of the sub-units corresponding to the components in the constructed structural group;

[0016] The first stiffness matrix is ​​obtained by assembling the sub-unit stiffness matrices corresponding to the components in all the constructed structural groups into the overall stiffness matrix according to the displacement numbers.

[0017] Furthermore, the stress feedback value of the statically indeterminate structure at construction stage t is determined based on the first stiffness matrix, the second stiffness matrix, and the temperature effect value of the constructed structural group. This determination is specifically performed using the following formula:

[0018] {K A +K D}{u}={ΔT}

[0019] In the formula, K A Let K be the first stiffness matrix. D denoted as the second stiffness matrix, u is the force feedback value of the statically indeterminate structure, and ΔT is the influence value of temperature on the constructed structure group.

[0020] Furthermore, the method also includes:

[0021] The stress influence value of each construction stage on the statically indeterminate structure is determined based on the stress feedback value of the statically indeterminate structure in different construction stages.

[0022] The construction process of the statically indeterminate structure is adjusted based on the stress influence value.

[0023] On the other hand, the present invention also provides a structural construction stress feedback device based on staged temperature measurement, the device comprising:

[0024] The grouping module is used to determine the structural groups during the construction process of the statically indeterminate structure. The structural groups are structural component groups that are in the same construction stage and form a statically indeterminate system with the statically indeterminate structure.

[0025] A preset sensor is used to obtain the initial temperature of the constructed structure group during construction and the stage temperature of the constructed structure group during construction phase t.

[0026] The temperature influence module is used to determine the temperature effect value of the constructed structure group in the construction stage t based on the initial temperature and the stage temperature.

[0027] The stiffness matrix module is used to determine the first stiffness matrix of the constructed structure group and the second stiffness matrix of the unconstructed structure group.

[0028] The determination module is used to determine the force feedback value of the statically indeterminate structure at construction stage t based on the first stiffness matrix, the second stiffness matrix, and the temperature effect value of the constructed structure group.

[0029] The present invention provides a structural construction force feedback method and apparatus based on staged temperature measurement. Compared with the prior art, this method first determines each structural group in the construction process of the statically indeterminate structure. The structural group is a group of structural components in the same construction stage that form a statically indeterminate system with the statically indeterminate structure. It acquires the initial temperature of the constructed structural group during construction and the stage temperature of the constructed structural group at construction stage t using preset sensors. Based on the initial temperature and stage temperature, it determines the temperature influence value of the constructed structural group at construction stage t. It determines the first stiffness matrix of the constructed structural group and the second stiffness matrix of the unconstructed structural group. Based on the first stiffness matrix, the second stiffness matrix, and the temperature influence value of the constructed structural group, it determines the force feedback value of the statically indeterminate structure at construction stage t. This improves the accuracy of the force performance analysis of the statically indeterminate structure, avoids potential safety hazards and quality problems, and optimizes the construction process of the statically indeterminate structure. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 The diagram shown is a schematic flowchart of the structural construction stress feedback method based on staged temperature measurement provided in the embodiments of this specification.

[0032] Figure 2 The diagram shown is a structural schematic of the structural construction force feedback device based on staged temperature measurement provided in the embodiments of this specification.

[0033] Figure 3 The diagram shown is a hardware structure block diagram of the structural construction force feedback server based on staged temperature measurement provided in the embodiments of this specification. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] like Figure 1 The diagram illustrates a flow chart of the structural construction stress feedback method based on phased temperature measurements provided in this embodiment. While this specification provides the method operation steps or device structure shown in the embodiments or figures below, based on conventional methods or without creative effort, the method or device may include more or fewer operation steps or module units after partial merging. In steps or structures where there is no logically necessary causal relationship, the execution order of these steps or the module structure of the device are not limited to the execution order or module structure shown in the embodiments or figures of this specification. When the method or module structure is applied in actual devices, servers, or terminal products, it can be executed sequentially or in parallel according to the method or module structure shown in the embodiments or figures (e.g., in a parallel processor or multi-threaded processing environment, or even in a distributed processing or server cluster implementation environment).

[0036] The structural construction stress feedback method based on staged temperature measurement provided in this embodiment can be applied to terminal devices such as client and server devices, for example... Figure 1As shown, the method specifically includes the following steps:

[0037] Step S101: Determine each structural group in the construction process of the statically indeterminate structure. The structural group is a group of structural components that are in the same construction stage and form a statically indeterminate system with the statically indeterminate structure.

[0038] Specifically, this step involves obtaining the installation time and method of different components according to the construction sequence of the statically indeterminate structure, and at the same time, dividing the structure into construction structure groups based on the formation process of the statically indeterminate structure.

[0039] During the construction of building structures, the overall construction steps are usually determined by the construction unit and summarized in the construction plan. Construction process simulation is generally completed before construction begins, therefore it cannot accurately reflect the formation sequence of members and stress changes during construction. The construction stress feedback method proposed in this paper tracks the construction process, more accurately considering the assembly sequence of members and installation temperature to obtain more precise temperature effects. Furthermore, for statically indeterminate spatial structures, temperature is one of the important factors affecting structural stress and deformation; therefore, considering the formation sequence of statically indeterminate structures during structural construction simulation is crucial.

[0040] Taking into account both the construction steps and the sequence of static indeterminate formation, structural components constructed in the same stage that can form a statically indeterminate system with the structure itself are grouped into a structural group. Assuming a statically indeterminate structure can be divided into m construction structural groups during construction, the overall construction structural group matrix can be represented as:

[0041]

[0042] In the formula, For the overall structure group matrix; J i Let i be the i-th structure group.

[0043] Step S102: Obtain the initial temperature of the constructed structure group during construction and the stage temperature of the constructed structure group in the t construction stage through a preset sensor.

[0044] Specifically, the temperature value at the time of structural assembly installation is obtained from temperature sensors already installed on the components and used as the initial temperature value. During subsequent construction, the construction progress is continuously tracked, and the temperature value is monitored.

[0045] In this embodiment of the application, the initial temperature is specifically a temperature matrix composed of the initial temperatures of each constructed component in the constructed structure group, and the stage temperature is specifically a temperature matrix composed of the stage temperatures of each constructed component in the constructed structure group in stage t.

[0046] Specifically, the initial temperature of the members within a single construction stage group can be further refined. For example, in the i-th construction structure group, assuming it has n members, the initial temperature of each member can be measured using temperature stress sensors installed on the structure. Then, the initial temperature of structure group J... i The initial temperature matrix can be expressed as:

[0047] T i =[T 10 T 20 …T j0 …T n0 ]

[0048] In the formula T i Let T be the initial temperature matrix of the i-th structure group. j0 Let be the initial temperature of the j-th member.

[0049] Step S103: Determine the influence value of temperature on the constructed structure group in construction stage t based on the initial temperature and stage temperature.

[0050] In this embodiment of the application, the temperature effect value is specifically the difference between the stage temperature and the initial temperature.

[0051] Specifically, as the structure is constructed, the overall statically indeterminate system continuously changes, and the temperature effects on the structure also change continuously, making the overall structural stress extremely complex. For a specific construction stage *t*, temperature monitoring sensors can be used to obtain the temperature of each structural component at that time, such as the temperature of the *i*th structural group *J*. i The temperature can be measured by a temperature monitoring sensor and can be expressed as...

[0052] T it =[T 1t T 2t …T jt …T nt ]

[0053] In the formula, T it Let T be the temperature monitoring value matrix of structural group i during construction phase t. jt The temperature monitoring value is for the j-th member of structural group i during construction phase t.

[0054] The magnitude of the temperature effect on the j-th structural group can be obtained using the temperature effect calculation formula, expressed as:

[0055] ΔT it =[ΔT 1t ΔT 2t …ΔT jt …ΔT nt ]

[0056] In the formula, ΔTit Let ΔT be the temperature effect matrix of structural group i during construction stage t. jt The temperature effect is denoted by the j-th member of structural group i.

[0057] ΔT jt The specific calculation process can be represented as follows:

[0058] ΔT jt =T jt -T j0

[0059] In the formula, T j0 Let T be the initial temperature of the j-th member of structural group i. jt The temperature monitoring value of the j-th member of structural group i during construction phase t is given.

[0060] Step S104: Determine the first stiffness matrix of the constructed structure group and the second stiffness matrix of the unconstructed structure group.

[0061] Specifically, the structural displacement and stress response under the influence of temperature at each stage of construction are analyzed to provide feedback on the overall structural stress state.

[0062] In this embodiment, the first stiffness matrix and the second stiffness matrix are square matrices arranged in the order of component displacements in the structural group. Each element represents the nodal force under the action of nodal displacements in the statically indeterminate structure, where a node is the position where two components are connected. Determining the first stiffness matrix of the constructed structural group specifically includes:

[0063] Determine the stiffness matrix of the sub-units corresponding to the components in the constructed structural group;

[0064] The first stiffness matrix is ​​obtained by assembling the sub-unit stiffness matrices corresponding to all components in the constructed structural group according to their displacement numbers into the overall stiffness matrix. The second stiffness matrix is ​​determined in the same way.

[0065] Specifically, when construction reaches the j-th structural group, the stiffness matrix of the currently activated structural groups, i.e., the constructed structural groups, which is also the first stiffness matrix, can be represented as K. 1A K 2A …K jA The stiffness matrix of the structural group that is not installed on the structure and is in the "killing" stage, i.e., the unconstructed structural group, also known as the second stiffness matrix, can be represented as K. (j+1)D K (j+2)D …K mD Where A represents the active structure group and D represents the killed structure group.

[0066] The pre-processing method in the matrix displacement method is used to solve the stress state of each structural group. The global stiffness matrix is ​​obtained from the stiffness matrices of each sub-element. The pre-processing method is to use the element stiffness matrix K described by the global coordinates. iA Assemble the elements into the overall stiffness matrix K of the structure according to their displacement numbers. A First, zero displacements such as those at the supports of each node are eliminated to determine the unknown displacements Δ (degrees of freedom) of the structure. The structural stiffness matrix is ​​a square matrix arranged in order of displacement. Each element of the stiffness matrix is ​​the nodal force under unit displacement, which can be obtained using the direct stiffness method. The overall stiffness matrix K of the structure can be directly assembled from the stiffness matrices of each element in global coordinates. The stiffness matrix formed by the preprocessing method is characterized by: symmetry, banded shape, sparseness, and non-singularity. The element stiffness matrix R of a common horizontal member can be expressed as:

[0067]

[0068] In the formula, EI is the bending stiffness, and l is the element length.

[0069] The element stiffness matrix is ​​transformed using the coordinate transformation matrix T, and then the overall stiffness matrix of all active sub-elements can be obtained by assembly. The coordinate transformation matrix T can be expressed as:

[0070]

[0071] In the formula, α is the angle between the local coordinate system and the global coordinate system. The global stiffness matrix K of the activated substructure can be assembled using the above formula. A and the element stiffness matrix K of the killed substructure D .

[0072] Step S105: Determine the force feedback value of the statically indeterminate structure at construction stage t based on the first stiffness matrix, the second stiffness matrix, and the temperature effect value of the constructed structure group.

[0073] Specifically, based on the calculated global stiffness matrix K of the activated substructure... A and the overall stiffness matrix K of the killed substructure D Combining the temperature conditions, the structural response u under temperature conditions can be calculated using the deformation compatibility formula, which can be expressed as:

[0074] {K A +K D}{u}={ΔT}

[0075] In the formula, K A Let K be the first stiffness matrix. Ddenoted as the second stiffness matrix, u is the force feedback value of the statically indeterminate structure, and ΔT is the influence value of temperature on the constructed structure group.

[0076] In this embodiment of the application, the method further includes:

[0077] The stress influence value of each construction stage on the statically indeterminate structure is determined based on the stress feedback value of the statically indeterminate structure in different construction stages.

[0078] The construction process of the statically indeterminate structure is adjusted based on the stress influence value.

[0079] Specifically, the structural stress feedback value *u* allows us to obtain the overall structural response under temperature influence. Based on this response, we can determine the structural deformation and stress levels, providing feedback during construction and guiding the planning of construction schemes. Through detailed analysis and evaluation of the overall structural stress performance, we can understand the stress conditions of the structure during actual construction, providing feedback on the overall structural stress and preventing potential safety hazards and quality problems.

[0080] Based on the above-described structural construction stress feedback method based on staged temperature measurements, this specification provides one or more embodiments of a platform or terminal for structural construction stress feedback based on staged temperature measurements. This platform or terminal may include devices, software, modules, plug-ins, servers, clients, etc., using the methods described in the embodiments of this specification, combined with necessary hardware implementation. Based on the same innovative concept, the systems in one or more embodiments provided in this specification are as described in the following embodiments. Since the implementation schemes and methods for solving the system problem are similar, the specific system implementation in the embodiments of this specification can refer to the implementation of the aforementioned methods. Repeated descriptions will not be repeated. The terms "unit" or "module" used below can refer to a combination of software and / or hardware that achieves a predetermined function. Although the systems described in the following embodiments are preferably implemented in software, hardware implementation, and a combination of software and hardware, are also possible and contemplated.

[0081] Specifically, Figure 2 This is a schematic diagram of a module structure of an embodiment of the structural construction force feedback device based on staged temperature measurement provided in this specification, as shown below. Figure 2 As shown, the structural construction stress feedback device based on staged temperature measurements provided in this specification includes:

[0082] Grouping module 201 is used to determine each structural group during the construction process of the statically indeterminate structure. The structural group is a group of structural components that are in the same construction stage and form a statically indeterminate system with the statically indeterminate structure.

[0083] The preset sensor 202 is used to obtain the initial temperature of the constructed structure group during construction and the stage temperature of the constructed structure group in the t construction stage.

[0084] Temperature influence module 203 is used to determine the temperature influence value of the constructed structure group in construction stage t based on the initial temperature and stage temperature.

[0085] Stiffness matrix module 204 is used to determine the first stiffness matrix of the constructed structure group and the second stiffness matrix of the unconstructed structure group;

[0086] The determination module 205 is used to determine the force feedback value of the statically indeterminate structure at construction stage t based on the first stiffness matrix, the second stiffness matrix, and the temperature effect value of the constructed structure group.

[0087] It should be noted that the system described above may include other implementation methods based on the description of the corresponding method embodiments. The specific implementation methods can be referred to the description of the corresponding method embodiments above, and will not be elaborated here.

[0088] This application also provides an electronic device, including:

[0089] processor;

[0090] Memory used to store the processor's executable instructions;

[0091] The processor is configured to perform the methods provided in the embodiments described above.

[0092] The electronic device provided in this application embodiment stores executable instructions of the processor in a memory. When the processor executes the executable instructions, it can first determine each structural group in the construction process of the statically indeterminate structure. The structural group is a group of structural components that are in the same construction stage and form a statically indeterminate system with the statically indeterminate structure. It obtains the initial temperature of the constructed structural group when it is constructed and the stage temperature of the constructed structural group at construction stage t through preset sensors. Based on the initial temperature and stage temperature, it determines the temperature effect value of the constructed structural group at construction stage t. It determines the first stiffness matrix of the constructed structural group and the second stiffness matrix of the unconstructed structural group. Based on the first stiffness matrix, the second stiffness matrix and the temperature effect value of the constructed structural group, it determines the force feedback value of the statically indeterminate structure at construction stage t. This improves the accuracy of the force performance analysis of the statically indeterminate structure, avoids potential safety hazards and quality problems, and optimizes the construction process of the statically indeterminate structure.

[0093] The methods and embodiments provided in this specification can be executed on mobile terminals, computer terminals, servers, or similar computing devices. Taking execution on a server as an example... Figure 3This is a hardware structure block diagram of a structural construction force feedback server based on staged temperature measurement in one embodiment of this specification. The computer terminal can be the structural construction force feedback server or the structural construction force feedback device based on staged temperature measurement in the above embodiment. It may include one or more (only one is shown in the figure) processors 100 (processors 100 may include, but are not limited to, microprocessors MCU or programmable logic devices FPGA, etc.), non-volatile memory 200 for storing data, and transmission module 300 for communication functions.

[0094] The non-volatile memory 200 can be used to store software programs and modules for application software, such as the program instructions / modules corresponding to the force determination method for the construction process of statically indeterminate structures in the embodiments of this specification. The processor 100 executes various functional applications and resource data updates by running the software programs and modules stored in the non-volatile memory 200. The non-volatile memory 200 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the non-volatile memory 200 may further include memory remotely located relative to the processor 100, and these remote memories can be connected to a computer terminal via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0095] The transmission module 300 is used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider for the computer terminal. In one example, the transmission module 300 includes a network interface controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the transmission module 300 may be a radio frequency (RF) module, used for wireless communication with the Internet.

[0096] The foregoing has described specific embodiments of this specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than that shown in the embodiments and may still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require the specific or sequential order shown to achieve the desired result. In some embodiments, multitasking and parallel processing are possible or may be advantageous.

[0097] The methods or apparatus described in the embodiments provided in this specification can implement business logic through a computer program and record it on a storage medium. The storage medium can be read and executed by a computer to achieve the effects of the solutions described in the embodiments of this specification, such as:

[0098] Determine each structural group during the construction process of the statically indeterminate structure. The structural group is a group of structural components that are in the same construction stage and form a statically indeterminate system with the statically indeterminate structure.

[0099] The initial temperature of the constructed structure group during its construction and the stage temperature of the constructed structure group during construction phase t are obtained by pre-set sensors.

[0100] The influence value of temperature on the constructed structure group at construction stage t is determined based on the initial temperature and stage temperature.

[0101] Determine the first stiffness matrix of the constructed structure group and the second stiffness matrix of the unconstructed structure group;

[0102] The force feedback value of the statically indeterminate structure at construction stage t is determined based on the first stiffness matrix, the second stiffness matrix, and the temperature effect value of the constructed structure group.

[0103] The storage medium can include physical devices for storing information, typically digitizing the information and then storing it using electrical, magnetic, or optical methods. The storage medium can include: devices that store information using electrical energy, such as various types of memory, like RAM and ROM; devices that store information using magnetic energy, such as hard disks, floppy disks, magnetic tapes, magnetic core memory, bubble memory, and USB flash drives; and devices that store information using optical methods, such as CDs or DVDs. Of course, there are other readable storage media, such as quantum memories and graphene memories.

[0104] The embodiments in this specification are not limited to conforming to industry communication standards, standard computer resource data update and data storage rules, or the situations described in one or more embodiments of this specification. Slightly modified implementations based on certain industry standards or custom methods or embodiments can also achieve the same, equivalent, or similar, or predictable, implementation effects as described above. Embodiments that utilize these modified or modified methods for data acquisition, storage, judgment, and processing still fall within the scope of optional implementations of the embodiments in this specification.

[0105] The controller can be implemented in any suitable manner. For example, it can take the form of a microprocessor or processor and a computer-readable medium storing computer-readable program code (e.g., software or firmware) executable by the (micro)processor, logic gates, switches, application-specific integrated circuits (ASICs), programmable logic controllers, and embedded microcontrollers. Examples of controllers include, but are not limited to, the following microcontrollers: ARC 625D, Atmel AT91SAM, Microchip PIC18F26K20, and Silicon Labs C8051F320. A memory controller can also be implemented as part of the control logic of the memory. Those skilled in the art will also recognize that, in addition to implementing the controller in purely computer-readable program code form, the same functionality can be achieved by logically programming the method steps to make the controller take the form of logic gates, switches, ASICs, programmable logic controllers, and embedded microcontrollers. Therefore, such a controller can be considered a hardware component, and the means included therein for implementing various functions can also be considered as structures within the hardware component. Alternatively, the means for implementing various functions can be considered as both software modules implementing the method and structures within the hardware component.

[0106] The device embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or plug-ins may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, indirect coupling or communication connection between devices or units, and may be electrical, mechanical, or other forms.

[0107] These computer program instructions can also be loaded onto a computer or other programmable resource data updating device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable device for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0108] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, system embodiments are basically similar to method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments. In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this specification. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0109] Those skilled in the art will recognize that the embodiments described herein are intended to help the reader understand the principles of the invention, and should be understood that the scope of protection of the invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on the technical teachings disclosed in this invention without departing from the spirit of the invention, and these modifications and combinations are still within the scope of protection of this invention.

Claims

1. A structural construction stress feedback method based on staged temperature measurements, characterized in that, The structure is a statically indeterminate structure, and the method includes: Determine each structural group during the construction process of the statically indeterminate structure. The structural group is a group of structural components that are in the same construction stage and form a statically indeterminate system with the statically indeterminate structure. The initial temperature of the constructed structure group during its construction and the stage temperature of the constructed structure group during construction phase t are obtained by pre-set sensors. The influence value of temperature on the constructed structure group at construction stage t is determined based on the initial temperature and stage temperature. Determine the first stiffness matrix of the constructed structure group and the second stiffness matrix of the unconstructed structure group; The force feedback value of the statically indeterminate structure at construction stage t is determined based on the first stiffness matrix, the second stiffness matrix, and the temperature effect value of the constructed structure group. The temperature effect value is specifically the difference between the stage temperature and the initial temperature; The first stiffness matrix and the second stiffness matrix are square matrices arranged according to the displacement order of the components in the structural group. Each element in each matrix represents the nodal force under the action of nodal displacement in the statically indeterminate structure, where a node is the position where two components are connected. Determining the first stiffness matrix of the constructed structural group specifically includes: Determine the stiffness matrix of the sub-units corresponding to the components in the constructed structural group; The first stiffness matrix is ​​obtained by assembling the sub-unit stiffness matrices corresponding to the components in all the constructed structural groups into the overall stiffness matrix according to the displacement numbers. The stress feedback value of the statically indeterminate structure at construction stage t is determined based on the first stiffness matrix, the second stiffness matrix, and the temperature effect value of the constructed structure group. Specifically, it is determined by the following formula: In the formula, This is the first stiffness matrix. This is the second stiffness matrix. For the force feedback value of the statically indeterminate structure, This represents the effect of temperature on the constructed structural group.

2. The structural construction stress feedback method based on staged temperature measurement as described in claim 1, characterized in that, The initial temperature is specifically a temperature matrix composed of the initial temperatures of each constructed component in the constructed structure group, and the stage temperature is specifically a temperature matrix composed of the stage temperatures of each constructed component in the constructed structure group during the t construction stage.

3. The structural construction stress feedback method based on staged temperature measurement as described in claim 1, characterized in that, The method further includes: The stress influence value of each construction stage on the statically indeterminate structure is determined based on the stress feedback value of the statically indeterminate structure in different construction stages. The construction process of the statically indeterminate structure is adjusted based on the stress influence value.

4. A structural construction stress feedback device based on staged temperature measurement, characterized in that, The device includes: The grouping module is used to determine the structural groups during the construction process of the statically indeterminate structure. The structural groups are structural component groups that are in the same construction stage and form a statically indeterminate system with the statically indeterminate structure. A preset sensor is used to obtain the initial temperature of the constructed structure group during construction and the stage temperature of the constructed structure group during construction phase t. The temperature influence module is used to determine the temperature effect value of the constructed structure group in the construction stage t based on the initial temperature and the stage temperature. The stiffness matrix module is used to determine the first stiffness matrix of the constructed structure group and the second stiffness matrix of the unconstructed structure group. The determination module is used to determine the force feedback value of the statically indeterminate structure at construction stage t based on the first stiffness matrix, the second stiffness matrix, and the temperature effect value of the constructed structure group. Specifically, the temperature effect value is the difference between the stage temperature and the initial temperature; The first stiffness matrix and the second stiffness matrix are square matrices arranged according to the displacement order of the components in the structural group. Each element in each matrix represents the nodal force under the action of nodal displacement in the statically indeterminate structure, where a node is the position where two components are connected. Determining the first stiffness matrix of the constructed structural group specifically includes: Determine the stiffness matrix of the sub-units corresponding to the components in the constructed structural group; The first stiffness matrix is ​​obtained by assembling the sub-unit stiffness matrices corresponding to the components in all the constructed structural groups into the overall stiffness matrix according to the displacement numbers. The stress feedback value of the statically indeterminate structure at construction stage t is determined based on the first stiffness matrix, the second stiffness matrix, and the temperature effect value of the constructed structure group. Specifically, it is determined by the following formula: In the formula, This is the first stiffness matrix. This is the second stiffness matrix. For the force feedback value of the statically indeterminate structure, This represents the effect of temperature on the constructed structural group.

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