Construction method of large nuclear power module applying steel plate shear wall

Abstract

The invention provides a construction method of a large nuclear power module applying a steel plate shear wall, the large nuclear power module applying the steel plate shear wall is composed of embedded columns, embedded beams, the steel plate shear wall and a single steel plate floor, the embedded columns and the embedded beams are connected with each other to form vertical and horizontal supporting frames, and the single steel plate floor is connected with the embedded beams. The embedded columns are arranged at the four corners of the steel plate shear wall and the joint of longitudinal and transverse walls, the hidden beams are arranged at the joint of the single steel plate floor slab and the steel plate shear wall, the steel plate shear wall is vertically arranged, and the edge of the steel plate shear wall is connected with the embedded columns and the hidden beams. Through the design of hidden structures such as the hidden beams, the embedded columns and the steel plate shear walls, the space utilization rate and the module integration degree of the nuclear power module are improved, and the stress and stability requirements of the large nuclear power module in complex working conditions such as land transportation, sea transportation, manufacturing and in-place installation are met; the problems that in a traditional modular structure, seismic ductility is insufficient, residual deformation exceeds the limit, and the node failure risk is high are solved, and the safety performance is improved.

Description

Technical Field

[0001] This invention relates to the field of nuclear power, and in particular to a construction method for a large nuclear power module using steel plate shear walls. Background Technology

[0002] In nuclear power plant construction, concrete structures have long held a central position, especially in the load-bearing and protective structures of key buildings such as the nuclear island and conventional island, which generally employ cast-in-place reinforced concrete. Currently, modular technology is still in the optimization stage in terms of connection node design and overall seismic performance verification. Existing specifications have not yet formed a unified standard for the mechanical performance requirements of connections between modules. Therefore, current nuclear power modules and traditional cast-in-place concrete processes have the following shortcomings: 1) High dependence on the site: Rebar tying, formwork, pouring and curing work need to be completed on site, and are subject to the constraints of climate or site. 2) Current nuclear power modules are small and have low integration: The AP1000 module technology is widely used in the nuclear power field. It is a reinforced concrete wall structure that is hoisted into place. The weight of a single module is mostly around 500 tons, with a maximum of no more than 1,000 tons. It cannot be integrated with electromechanical equipment into a single module, resulting in low integration. 3) Complex connection nodes: Currently, nuclear power modules are connected by bolts or welding, which requires reserving operating space, thus limiting the modularization rate; 4) Insufficient seismic performance: The steel frame joints have poor ductility, making it difficult to meet the national standard requirement of "repairable in moderate earthquakes and not collapsing in major earthquakes"; 5) Low space utilization: The exposed beam and column structures of current nuclear power modules occupy the internal space of the nuclear island, affecting equipment layout and subsequent maintenance. Summary of the Invention

[0003] To address the aforementioned technical problems, the technical solution adopted by this invention is as follows: According to one aspect of this application, a construction method for a large nuclear power module using steel plate shear walls is provided, comprising: Step S100: Modularly disassemble the nuclear power assembly to be transported to obtain several modules to be transported, which are included in the nuclear power assembly to be transported. Step S200: Transport several modules to be transported to the installation site using the module sliding system; Step S300: Determine the mass state of each module to be transported during the transportation process based on several first vibration feature vectors corresponding to each module before transportation and several second vibration feature vectors corresponding to each module after transportation. Each module to be transported is equipped with several vibration sensors; the first vibration feature vector is composed of several vibration feature data collected by the vibration sensors in the first time period; the second vibration feature vector is composed of several vibration feature data collected by the vibration sensors in the second time period. The first time period is the period during which the vibration sensor is tested before transportation; the second time period is the period during which the vibration sensor is tested after transportation; the duration of the second time period is equal to the duration of the first time period, and the location where the module to be transported is tested during the first time period is the same as the location where it is tested during the second time period. Step S400: If the quality status of several modules to be transported is normal, install several modules to be transported to the installation site to obtain the nuclear power assembly to be transported. Step S500: Pour concrete for the nuclear power assembly to be transported.

[0004] In one exemplary embodiment of this application, the module to be transported includes concealed columns, concealed beams, steel plate shear walls, and single steel plate floor slabs. The concealed columns and concealed beams are interconnected to form a vertical and horizontal support frame. The concealed columns are located at the four corners of the steel plate shear walls and at the intersections of the longitudinal and transverse walls. The concealed beams are located at the intersections of the single steel plate floor slabs and the steel plate shear walls. The steel plate shear walls are vertically arranged, and the edges of the steel plate shear walls are connected to the concealed columns and concealed beams. The single steel plate floor slabs are horizontally supported on the concealed beams.

[0005] The present invention has at least the following beneficial effects: The construction method for large nuclear power modules using steel plate shear walls in this invention comprises a module to be transported consisting of concealed columns, concealed beams, steel plate shear walls, and single steel plate floor slabs. The concealed columns and beams are interconnected to form a vertical and horizontal support frame. Concealed columns are located at the four corners of the steel plate shear walls and at the intersections of longitudinal and transverse walls. Concealed beams are located at the intersections of the single steel plate floor slabs and the steel plate shear walls. The steel plate shear walls are vertically installed, with their edges connected to the concealed columns and beams. The single steel plate floor slabs are horizontally supported on the concealed beams. This construction method utilizes concealed structures such as concealed beams, concealed columns, and steel plate shear walls. The design improves the space utilization and module integration of nuclear power modules, freeing up effective space. The integrated design of the nuclear power modules breaks through the size limitations of nuclear power modules, meets the stress and stability requirements of large nuclear power modules in complex working conditions such as land transportation, sea transportation, manufacturing, and installation, supports the manufacturing, installation and transportation of nuclear power modules weighing thousands of tons or more, and solves the problems of insufficient seismic ductility, excessive residual deformation, and high risk of node failure in traditional modular structures through the integrated design of nuclear power modules, thus improving safety performance. Attached Figure Description

[0006] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0007] Figure 1 A three-dimensional schematic diagram of the module to be transported in the construction method of a large nuclear power module using steel plate shear walls provided in an embodiment of the present invention; Figure 2 This is a top view of the module to be transported provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the steel plate shear wall of the module to be transported provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of a single steel plate floor slab for a module to be transported, provided in an embodiment of the present invention. Figure 5 A schematic diagram of the connection between the hidden columns and hidden beams of the module to be transported provided in an embodiment of the present invention; Figure 6 A schematic diagram showing the connection of the concealed columns, concealed beams, and steel plate shear walls of the module to be transported, provided in an embodiment of the present invention. Figure 7 A schematic diagram showing the connection of the concealed columns, concealed beams, steel plate shear walls, and single steel plate floor slabs of the module to be transported, provided in an embodiment of the present invention. Figure 8 A flowchart illustrating the construction method of a large nuclear power module using steel plate shear walls, provided in an embodiment of the present invention.

[0008] In the picture: 1. Concealed column; 2. Concealed beam; 3. Steel plate shear wall; 4. Single steel plate floor slab; 5. Lower steel plate of floor slab; 6. Floor slab studs; 7. Floor slab reinforcement; 8. Floor slab stiffening ribs; 9. Shear wall bolts; 10. Shear wall outer steel plate; 11. Shear wall tie steel; 12. Shear wall stiffening ribs. Detailed Implementation

[0009] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0010] like Figure 8 As shown, this application proposes a construction method for a large nuclear power module using steel plate shear walls, including: Step S100: Modularly disassemble the nuclear power assembly to be transported to obtain several modules to be transported, which are included in the nuclear power assembly to be transported. The module to be transported is a large nuclear power module that uses steel plate shear walls. First, the nuclear power components to be transported are modularly disassembled and designed to obtain several design schemes corresponding to the modules to be transported. Then, the corresponding modules to be transported are manufactured according to the design schemes (such as manufacturing drawings).

[0011] Step S200: Transport several modules to be transported to the installation site using the module sliding system; Step S300: Determine the mass state of each module to be transported during the transportation process based on several first vibration feature vectors corresponding to each module before transportation and several second vibration feature vectors corresponding to each module after transportation. Each module to be transported is equipped with several vibration sensors. The vibration sensors are placed at the stress concentration points or structural weak points of the module to be transported. Finite element analysis is first performed on each structural position of the module to be transported to obtain the location of the stress concentration points or structural weak points of the module to be transported. Then, vibration sensors are installed at each of the determined positions.

[0012] Furthermore, step S300 includes steps S310-S360: Step S310: During the first time period, apply a preset pressure to several preset positions corresponding to the module to be transported in sequence; The first time period is the period during which the vibration sensor undergoes vibration testing before transportation.

[0013] The preset position is a location where the operator can apply pressure. The pressure applied to the preset position is limited to a level that will not cause vibration damage to the transport module.

[0014] Step S320: Based on the vibration feature data collected by each vibration sensor in the first time period, obtain several first vibration feature vectors corresponding to each vibration sensor. The first vibration feature vector is composed of several vibration feature data collected by the vibration sensor within the first time period. Specifically, step S320 includes step S321: Step S321: Obtain several vibration characteristic data collected by each vibration sensor when pressure is applied to each preset position corresponding to the module to be transported during the first time period, so as to obtain several first vibration feature vector lists M1, M2, ..., M a ,...,M b Where a = 1, 2, ..., b; b is the number of vibration sensors; M a This is a list of the first vibration feature vectors corresponding to the a-th vibration sensor; M a =(M a1 M a2 ,...,M ac ,...,M ad ); c=1,2,...,d; d is the number of preset locations corresponding to the modules to be transported; M ac The first vibration feature vector corresponding to the a-th vibration sensor when pressure is applied to the c-th preset position corresponding to the module to be transported during the first time period; M ac =(M ac1 M ac2 ,...,M ace ,...,M acf ); e=1,2,...,f; f is the number of vibration characteristic data acquisition moments when pressure is applied to the c-th preset position corresponding to the module to be transported; M ace When pressure is applied to the c-th preset position corresponding to the module to be transported during the first time period, the vibration characteristic data acquired by the a-th vibration sensor at the e-th acquisition time is obtained.

[0015] Each vibration sensor corresponds to a sampling location (i.e., the location where the vibration sensor is located). The vibration sensor only collects vibration data at its corresponding sampling location. For example, in the first time period, when pressure is applied to each preset location of the transport module, each vibration sensor only collects vibration data at its corresponding sampling location. For example, if the sampling location of vibration sensor A is the first location, and the preset locations of the transport module are the second and third locations, when pressure is applied to the second location, vibration sensor A collects vibration data at the first location. When pressure is applied to the third location, vibration sensor A also only collects vibration data at the first location. In this way, the vibration relationship between each preset location and each vibration sensor can be obtained.

[0016] Step S330: During the second time period, apply a preset pressure to several preset positions corresponding to the module to be transported in sequence; The second time period is the period during which the vibration sensor undergoes vibration testing after transportation; the duration of the second time period is equal to the duration of the first time period, and the location where the module to be transported undergoes vibration testing in the first time period is the same as the location where vibration testing is conducted in the second time period.

[0017] The preset position for applying pressure during the second time period is the same as the preset position for applying pressure during the first time period, and the pressure applied during the second time period is equal to the pressure applied during the first time period.

[0018] Step S340: Based on the vibration feature data collected by each vibration sensor during the second time period, obtain several second vibration feature vectors corresponding to each vibration sensor. The second vibration feature vector is composed of several vibration feature data collected by the vibration sensor during the second time period. Specifically, step S340 includes step S341: Step S341: Obtain several vibration characteristic data collected by each vibration sensor when pressure is applied to each preset position corresponding to the module to be transported during the second time period, so as to obtain several second vibration feature vector lists Q1, Q2, ..., Q a ,...,Q b ; where Q a This is a list of the second vibration feature vectors corresponding to the a-th vibration sensor; Q a =(Q a1 Q a2 ,...,Q ac ,...,Q ad );Q ac The second vibration feature vector corresponding to the a-th vibration sensor when pressure is applied to the c-th preset position corresponding to the module to be transported during the second time period; Q ac =(Q ac1 Q ac2 ,...,Q ace ,...,Q acf );Q ace The vibration characteristic data acquired by the a-th vibration sensor at the e-th acquisition time when pressure is applied to the c-th preset position corresponding to the module to be transported during the second time period.

[0019] Step S350: If the matching degree of the first vibration feature vector and the second vibration feature vector corresponding to the same vibration sensor at the same preset position is greater than the preset matching degree threshold, then it is determined that no vibration abnormality has occurred in the associated area between the vibration sensor and the preset position. The associated area between the vibration sensor and the preset position is determined based on the vibration transmission path between each vibration sensor and each preset position (the method for determining the vibration transmission path adopts existing methods), or it can be customized by the staff.

[0020] Step S350 includes steps S351 and S3501-S3502: Step S351, if in M a and Q a In the middle, M ac and Q acIf the matching degree is greater than the preset matching degree threshold, then it is determined that no vibration abnormality has occurred in the associated area between the a-th vibration sensor and the c-th preset position; Step S3501, if in M a and Q a In the middle, M ac and Q ac If the matching degree is less than or equal to the preset matching degree threshold, then the associated region between the a-th vibration sensor and the c-th preset position is determined as the detection region. Step S3502: After the inspector has inspected the inspection area and determined that no abnormal vibration has occurred in the inspection area, proceed to step S360.

[0021] Step S360: If no vibration abnormality occurs in the associated area between each vibration sensor and each preset position, then the quality status of the module to be transported during the transportation process is determined to be normal.

[0022] By applying pressure to the same location before and after transport of the module to be transported, it is possible to detect whether the module has vibration damage caused by bumps or shaking during transport. If so, the inspection personnel are prompted to repair the damaged location. This allows for safe monitoring of the damage to the module during transport and improves the safety and quality of subsequent nuclear power assemblies to be installed.

[0023] Step S400: If the quality status of several modules to be transported is normal, install several modules to be transported to the installation site to obtain the nuclear power assembly to be transported. Step S500: Pour concrete for the nuclear power assembly to be transported.

[0024] The nuclear power assembly to be transported is disassembled into several modules to be transported, and then several modules to be transported are transported to the installation site. At the installation site, the modules to be transported are assembled to obtain the nuclear power assembly to be transported. Then, the nuclear power assembly to be transported is cast and installed. The installation method and disassembly method of the nuclear power assembly to be transported adopt the existing nuclear power assembly disassembly and installation method, which is not within the protection scope of this application.

[0025] Furthermore, this application also proposes a method for detecting the working state of a module sliding system during the transportation of the module to be transported, as shown in steps S10-S50: Step S10: During the sliding operation of the module sliding system, at preset time intervals, acquire several pressure values ​​obtained by each first pressure sensor within the target time period to obtain a first pressure value list set A=(A1,A2,...,A1). i ,...,A h); where i = 1, 2, ..., h; h is the number of first pressure sensors; A i This is a list of pressure values ​​corresponding to the i-th first pressure sensor within the target time period; A i =(A i1 A i2 ,...,A ij ,...,A ig ); j=1,2,...,g; g is the number of pressure acquisition nodes within the target time period; the duration between any two adjacent pressure acquisition nodes within the target time period is equal; A ij The pressure value collected by the i-th first pressure sensor at the j-th pressure acquisition node within the target time period; The target time period begins when the module sliding system starts its sliding operation, and ends when the target time period ends at the current time.

[0026] The sliding operation of the modular sliding system refers to the operation in which the modular sliding system drives the module to be transported. During the sliding operation of the modular sliding system, pressure values ​​are acquired in stages to detect abnormalities in the status of the modular sliding system.

[0027] The first pressure sensor can be installed on the support part (such as the support hydraulic device) of the module sliding system to collect the load pressure data of the module to be transported to the module sliding system.

[0028] The pressure values ​​in the first pressure value list are the pressure values ​​that the module sliding system experiences during sliding operations. The pressure corresponding to this pressure value is the actual pressure experienced by the module sliding system, which includes the pressure affected by the external environment.

[0029] Step S20: Based on the pressure values ​​obtained by the second pressure sensors set on the module to be transported within the target time period, apply the corresponding pressure to the corresponding position of the preset module simulation model at the corresponding time of the key time period. The module to be transported is the large nuclear power module after modularization.

[0030] The module simulation model is a simulation model obtained by simulating the module to be transported in a preset simulation space. The module simulation model is a simulation model of the module to be transported generated using digital twin simulation technology, and its weight, size and other size information are the same as the module to be transported.

[0031] The second pressure sensor is installed on the four sides of the module to be transported to collect the pressure of the external environment that the module is subjected to during transportation, such as the wind force that the module is subjected to during transportation.

[0032] The critical time period begins when stress is applied to the module simulation model, and its duration is equal to that of the target time period.

[0033] By applying pressure to the module simulation model, the wind force experienced by the module simulation model during transportation is simulated, so that the pressure values ​​in the first pressure value list can be corrected and adjusted later.

[0034] Furthermore, step S20 includes steps S21-S24: Step S21: Obtain several pressure values ​​acquired by each second pressure sensor within the target time period to obtain a fourth pressure value list set B=(B1,B2,...,B m ,...,B n ); where m=1,2,...,n; n is the number of second pressure sensors; B m This is a list of pressure values ​​corresponding to the m-th second pressure sensor within the target time period; B m =(B m1 B m2 ,...,B mj ,...,B mg ); B mj The pressure value collected by the m-th second pressure sensor at the j-th pressure acquisition node within the target time period is denoted as . The pressure values ​​in the fourth pressure value list represent the wind force experienced by the surface of the module to be transported during transportation.

[0035] Step S22: Determine the location on the module to be transported where the second pressure sensor is installed as the setting location; Step S23: Determine the position on the module simulation model that corresponds to the setting position of the module to be transported as the force application position; Step S24: At the time corresponding to the j-th pressure acquisition node in the critical time period, apply force B to the m-th force application position of the module simulation model. mj The corresponding pressure; The m-th force application position in the module simulation model is the position on the module simulation model that corresponds to the position of the m-th second pressure sensor on the module to be transported.

[0036] There are g pressure acquisition nodes within the critical time period, and the duration between any two adjacent pressure acquisition nodes within the critical time period is equal.

[0037] Step S30: Obtain several pressure values ​​acquired by each of the first simulation sensors within a key time period to obtain a second pressure value list set C=(C1,C2,...,C...). i ,...,Ch ); where C i This is a list of pressure values ​​corresponding to the i-th first simulation sensor during the critical time period; C i =(C i1 C i2 ,...,C ij ,...,C ig );C ij Let be the pressure value collected by the i-th first simulation sensor at the j-th pressure acquisition node during the critical time period; The system simulation model is a simulation model obtained by simulating the module sliding system in the simulation space. In the simulation space, the system simulation model is used to support the module simulation model and drive the module simulation model to slide. The system simulation model is a simulation model of the module sliding system generated by digital twin simulation technology.

[0038] The first simulated sensor is a simulation model obtained by simulating the first pressure sensor in the simulation space. The position of the first simulated sensor on the system simulation model is the same as the position of the corresponding first pressure sensor on the module sliding system, so as to ensure that the pressure value collected by the first simulated sensor is consistent with the pressure value collected by the first pressure sensor, thereby reducing the error in subsequent pressure value correction.

[0039] Step S40: Based on the second pressure value list set, modify the first pressure value list set to obtain the third pressure value list set; Furthermore, step S40 includes steps S41-S43: Step S41: Obtain several pressure values ​​acquired by each first simulation sensor during a key time period when no pressure is applied to the module simulation model, to obtain a standard pressure value list set D=(D1,D2,...,D...). i ,...,D h ); where D i This is a list of pressure values ​​corresponding to the i-th first simulation sensor during the critical time period when no pressure is applied to the module simulation model; D i =(D i1 D i2 ,...,D ij ,...,D ig );D ij This refers to the pressure value collected by the i-th first simulation sensor at the j-th pressure acquisition node during the critical time period when no pressure is applied to the module simulation model.

[0040] When no pressure is applied, the pressure value collected by each first simulation sensor in the module simulation model is the pressure that the module simulation model provides to the system simulation model.

[0041] Step S42: Based on the second pressure value list set C and the standard pressure value list set D, determine the pressure change value list set E = (E1, E2, ..., E...). i ,...,E h ); where E i This is a list of pressure change values ​​corresponding to the i-th first simulation sensor during the critical time period; E i =(E i1 E i2 ,...,E ij ,...,E ig ); E ij =C ij -D ij E ij Let be the pressure change value of the i-th first simulation sensor at the j-th pressure acquisition node during the critical time period; Step S43: Based on the pressure change value list set E, correct each pressure value in the first pressure value list set A to obtain the third pressure value list set F = (F1, F2, ..., F...). i ,...,F h ); where F i For A i The list of pressure values ​​obtained after correcting several pressure values ​​in the data; F i =(F i1 ,F i2 ,...,F ij ,...,F ig );F ij =A ij -E ij ;F ij For A ij The pressure value obtained after correction.

[0042] By correcting each pressure value in the first pressure value list, the pressure values ​​in the resulting third pressure value list are pressure values ​​that have been freed from the influence of the external environment. By performing abnormal state detection on the corrected pressure values, the subsequent state prediction model focuses on the pressure exerted by the module to be transported on the module sliding system itself during transportation, which can improve the abnormal detection accuracy of the module sliding system.

[0043] Step S50: Input the third pressure value list into the preset state prediction model to obtain the state prediction identifier output by the state prediction model. When the state prediction identifier is the first identifier, the predicted working state of the module sliding system is characterized as the normal state.

[0044] When the state prediction identifier is the second identifier, the predicted working state of the module sliding system is characterized as an abnormal state.

[0045] The state prediction model is trained based on several corrected pressure values ​​corresponding to the sliding operation of the module sliding system during a historical time period. The specific training method can adopt the existing supervised training method (that is, use the pressure value as a sample, use the working state identifier of the module sliding system in the time period of the pressure value as a label, and train the neural network model).

[0046] The end time of the historical time period is located before the start time of the target time period.

[0047] If the predicted working state of the module sliding system is abnormal, then the control module sliding system will stop sliding.

[0048] During the sliding operation of the modular sliding system, at preset intervals, a first pressure value list is obtained based on the pressure values ​​acquired by several first pressure sensors installed on the modular sliding system within the target time period. The pressure values ​​in the first pressure value list represent the actual pressure values ​​exerted on the modular sliding system by the transported module due to external influences during the sliding operation. Then, based on the pressure values ​​acquired by several second pressure sensors installed on the transported module carried by the modular sliding system within the target time period, corresponding pressures are applied to the corresponding positions of the module simulation model at corresponding moments in the critical time period to simulate the module simulation model. A second pressure value list is obtained based on the pressure values ​​acquired by several first simulation sensors installed on the system simulation model within the critical time period. The pressure values ​​in the second pressure value list represent the system simulation... When the model performs sliding operations during critical time periods, the module simulation model provides the system simulation model with load-bearing pressure values. Based on the second pressure value list, the first pressure value list is corrected to obtain the third pressure value list. Several pressure values ​​in the third pressure value list are pressure values ​​after removing external influences. Based on the third pressure value list, the working state of the module sliding system is predicted to obtain the corresponding predicted working state of the module sliding system. If the predicted working state of the module sliding system is an abnormal state, the module sliding system is controlled to stop sliding operations. By correcting and adjusting the pressure values ​​experienced by the module sliding system during sliding operations, the influence of the external environment on the module to be transported during transportation is removed. This ensures that the pressure values ​​for working state detection are only the load-bearing pressure values ​​exerted on the module sliding system by the module to be transported during transportation, thereby improving the accuracy of abnormal detection of the module sliding system.

[0049] Among them, such as Figure 1 and Figure 2 As shown, the module to be transported (i.e., the large nuclear power module using steel plate shear walls mentioned above) consists of concealed columns 1, concealed beams 2, steel plate shear walls 3, and single steel plate floor slabs 4, forming a closed lateral force resisting system. The components can work together to transmit force. Through the reasonable connection and coordination of each component, this large modular steel structure system can form an efficient force transmission path when bearing complex loads, jointly ensuring the integrity, stability and load-bearing capacity of the structure, and significantly improving the comprehensive performance of the large modular structure.

[0050] Hidden column 1 is used to bear vertical loads and dissipate seismic energy, such as... Figure 5 As shown, concealed column 1 and concealed beam 2 are interconnected to form a stable vertical and horizontal support frame, providing the foundation bearing capacity for the system. The connection structure between concealed column 1 and concealed beam 2 forms the frame of the nuclear power module to ensure the stress requirements of the nuclear power module during manufacturing, transportation, and installation. Figure 6 As shown, the hidden column 1 is arranged at the four corners of the steel plate shear wall 3 and at the intersection of the longitudinal and transverse walls. The hidden column 1 is a structure with a rectangular closed section enclosed by steel plates and internal partitions. This structure can improve local stability. Moreover, the connection process between the hidden column 1 and the outer steel plate of the steel plate shear wall 3 is full penetration welding, which can form a rigid node. Under the action of earthquake, the hidden column 1, as a key vertical support component, not only bears the vertical load, but also absorbs the seismic energy through its own bending and shear deformation, while limiting the lateral displacement of the wall and avoiding buckling instability of the structure.

[0051] Hidden beam 2 serves as a horizontal constraint band for the nuclear power module, coordinating the deformation of the single steel plate floor slab 4 and the steel plate shear wall 3. Hidden beam 2 is an all-steel structure located at the junction of the single steel plate floor slab 4 and the steel plate shear wall 3. By optimizing the coordinated design of the height of hidden beam 2 and the thickness of the floor slab, a flat and uniform structural surface is formed, completely eliminating the space encroachment problem of traditional exposed beam components. The main body of hidden beam 2 consists of a rectangular cross-section composed of upper and lower flanges and a web. Under horizontal loads, hidden beam 2 acts as a rigidly connected "horizontal constraint band," deforming in tandem with the steel plate shear wall 3, effectively transferring the horizontal shear force borne by the wall to hidden column 1, forming a closed lateral force resisting system, while effectively suppressing out-of-plane deformation of the wall and significantly improving seismic performance.

[0052] Steel plate shear wall 3 is the core lateral force resisting component of the nuclear power module (capable of bearing more than 80% of the horizontal load), bearing horizontal loads such as transportation, earthquakes, and wind loads. Steel plate shear wall 3 is vertically installed, and its edges are tightly connected to concealed columns 1 and concealed beams 2 through welding and other methods. Steel plate shear wall 3 uses steel plates to form a rectangular closed section, internally divided into multiple independent load-bearing units by partitions to enhance the local stability of the column. The concealed columns 1 and the outer steel plates of steel plate shear wall 3 are connected using a continuous full-penetration welding process to form… The seamless rigid joints enable the concealed column 1 and the steel plate shear wall 3 to form a unified lateral force resisting whole. Finite element analysis verifies that the connection structure of the concealed column 1 and the steel plate shear wall 3 can effectively achieve the seismic design goal of "not collapsing in a major earthquake", greatly improving the safety and reliability of the nuclear power modular building under seismic conditions. The structure connecting the steel plate shear wall 3 with the surrounding concealed columns 1, concealed beams 2 and single steel plate floor 4 forms a complete floor support structure, which provides support and reinforcement for the installation of nuclear power module equipment, pipelines and other components.

[0053] The single steel plate floor slab 4 is used to transfer vertical loads to the steel plate shear wall 3 or the hidden column 1, such as... Figure 7 As shown, the single steel plate floor slab 4 is horizontally erected on the hidden beam 2 and reliably connected to the hidden beam 2 by welding or other means to form a horizontal force-bearing system. It is responsible for transmitting the vertical load and distributing it to the hidden column 1 and the steel plate shear wall 3. The connection structure between the single steel plate floor slab 4 and the hidden beam 2 and the hidden column 1 forms a frame support system, which further ensures the stability of the nuclear power module during manufacturing, transportation and installation, and serves as a template for subsequent concrete pouring.

[0054] like Figure 3 As shown, the steel plate shear wall 3 includes an outer steel plate 10, shear wall bolts 9, shear wall stiffening ribs 12, and shear wall tie steel 11. The outer steel plate 10 is arranged on both sides to form the outer surface of the steel plate shear wall 3. Based on the structural stress characteristics and load-bearing requirements, an appropriate thickness is selected through precise mechanical calculations to enable it to effectively bear horizontal loads and part of the vertical loads. The shear wall bolts 9 are located inside the steel plate shear wall 3 and are fixedly connected to the outer steel plate 10. The shear wall stiffening ribs 12 are located inside the steel plate shear wall 3 and are fixedly connected to the outer steel plate 10. The shear wall tie steel 11 is fixedly connected to the middle of the two shear wall stiffening ribs 12 corresponding to the two outer steel plates 10. Through the design of the shear wall tie steel 11 and the shear wall stiffening ribs 12 inside the steel plate shear wall 3, local buckling can be suppressed.

[0055] The shear wall tension steel 11, with the help of the shear wall stiffening ribs 12 at both ends, maintains a stable spacing between the outer steel plates 10 and can deform together under stress. This structure further enhances the shear and bending bearing capacity of the steel plate shear wall 3, ensuring that the steel plate shear wall 3 can still maintain good structural performance and bearing capacity under complex loads such as transportation, placement, and wind loads during the implementation of the nuclear power module. It also ensures that the steel plate shear wall 3 can work together with the hidden columns 1, hidden beams 2, and single steel plate floor slabs 4 to meet the stringent requirements of large-scale nuclear power modular structures for component strength, stiffness, and stability, and ensure the smooth implementation of large-scale modularization.

[0056] like Figure 4 As shown, the single steel plate floor slab 4 includes a lower steel plate 5, floor studs 6, floor reinforcement 7, and floor stiffening ribs 8. The lower steel plate 5 is the foundation load-bearing component (load-bearing base) of the single steel plate floor slab 4. The floor studs 6 (shear-resistant connectors) penetrate the lower steel plate 5 and are fixedly connected to it (e.g., by welding). The floor stiffening ribs 8 are fixedly connected to the upper surface of the lower steel plate 5 at preset intervals to enhance the in-plane stiffness and deformation resistance of the single steel plate floor slab 4. The floor reinforcement 7 is tied to the upper surface of the single steel plate floor slab 4. Internally, the load-bearing capacity and integrity of the single steel plate floor slab 4 are significantly improved. Furthermore, the nuclear power module of this application reduces the amount of work on the installation site and shortens the installation period by completing the pre-tying of the floor slab reinforcement 7 and the installation of the formwork in the factory. The floor slab stiffening ribs 8 are distributed in each component according to the stress requirements. Through reasonable connection and coordination, each component enables the system to form an efficient force transmission path when bearing complex loads, jointly ensuring the integrity, stability and load-bearing capacity of the nuclear power module structure, and significantly improving the comprehensive performance of the large modular structure.

[0057] The use of floor slab stiffeners 8 not only increases the floor load-bearing capacity during the implementation of nuclear power modules, but also serves as a support component for floor equipment and pipelines. In the implementation of large nuclear power modules, this approach also increases the floor stiffness, improves the load-bearing capacity and deformation coordination of the entire structure, and the floor slab stiffeners 8 can also serve as a support component for the floor slab steel mesh to reduce the amount of on-site binding work.

[0058] The large nuclear power module using steel plate shear walls of the present invention has the following beneficial effects: The design of concealed structures such as concealed beams 2, concealed columns 1, and steel plate shear walls 3 has improved the space utilization and module integration of nuclear power modules, freeing up effective space and maximizing the use of the effective area inside the building, thereby improving the space utilization of the nuclear island and conventional island. The nuclear power module adopts an integrated design and post-concrete pouring, which solves the module placement problem. Under the condition that the dock and land transportation conditions permit, the volume of the nuclear power module can reach 10,000 cubic meters and the weight can reach 1,000 to 10,000 tons, which greatly reduces the amount of on-site construction work, breaks through the size limitation of nuclear power modules, and meets the stress and stability requirements of large nuclear power modules in complex working conditions such as land transportation, sea transportation, manufacturing, placement and installation. It supports the manufacturing, installation and transportation of nuclear power modules weighing thousands of tons or more. 3. Through the integrated design of the nuclear power module, based on the reinforcement system of hidden beam 2, hidden column 1, and steel plate shear wall 3 and the synergistic effect of internal eccentric support, the problem of easy brittle failure of traditional steel plate wall nodes is solved by reducing the number of nodes, optimizing the structural collaborative force mechanism and energy dissipation path, and enhancing the systematic nature of seismic performance. 4. Due to the use of a steel plate wall system with structural components, on-site casting can be carried out without binding, which greatly shortens the construction cycle of nuclear power plant sites; 5. The pre-tying of floor slab reinforcement bars 7 and the installation of formwork can be completed in the factory. Automatic welding and robotic welding can be used extensively, and the efficiency and quality are higher than those of on-site construction.

[0059] Embodiments of the present invention also provide a computer program product including program code, which, when the program product is run on an electronic device, causes the electronic device to perform the steps of the methods described above in various exemplary embodiments of the present invention.

[0060] Furthermore, although the steps of the method in this disclosure are described in a specific order in the accompanying drawings, this does not require or imply that the steps must be performed in that specific order, or that all the steps shown must be performed to achieve the desired result. Additional or alternative steps may be omitted, multiple steps may be combined into one step, and / or a step may be broken down into multiple steps.

[0061] From the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of this disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, external hard drive, etc.) or on a network, including several instructions to cause a computing device (such as a personal computer, server, mobile terminal, or network device, etc.) to execute the methods according to the embodiments of this disclosure.

[0062] In an exemplary embodiment of this disclosure, an electronic device capable of implementing the above-described method is also provided.

[0063] Those skilled in the art will understand that various aspects of the present invention can be implemented as systems, methods, or program products. Therefore, various aspects of the present invention can be specifically implemented in the following forms: entirely in hardware, entirely in software (including firmware, microcode, etc.), or in a combination of hardware and software, collectively referred to herein as “circuit,” “module,” or “system.”

[0064] An electronic device according to this embodiment of the invention. The electronic device is merely an example and should not be construed as limiting the functionality or scope of the embodiments of the invention.

[0065] Electronic devices are manifested in the form of general-purpose computing devices. Components of an electronic device may include, but are not limited to: at least one processor, at least one memory, and buses connecting different system components (including memory and processor).

[0066] The storage device stores program code that can be executed by the processor to perform the steps described in the "Exemplary Methods" section above, according to various exemplary embodiments of the present invention.

[0067] The storage may include readable media in the form of volatile storage, such as random access memory (RAM) and / or cache memory, and may further include read-only memory (ROM).

[0068] The storage may also include programs / utilities having a set (at least one) of program modules, including but not limited to: an operating system, one or more applications, other program modules, and program data, each or some combination of these examples may include an implementation of a network environment.

[0069] A bus can represent one or more of several bus architectures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus that uses any of the various bus architectures.

[0070] Electronic devices can also communicate with one or more external devices (such as keyboards, pointing devices, Bluetooth devices, etc.), one or more devices that enable users to interact with the electronic device, and / or any device that enables the electronic device to communicate with one or more other computing devices (such as routers, modems, etc.). This communication can be performed through input / output (I / O) interfaces. Furthermore, electronic devices can also communicate with one or more networks (such as local area networks (LANs), wide area networks (WANs), and / or public networks, such as the Internet) via network adapters.

[0071] In exemplary embodiments of this disclosure, a computer-readable storage medium is also provided, on which a program product capable of implementing the methods described above is stored. In some possible embodiments, various aspects of the invention may also be implemented as a program product comprising program code that, when the program product is run on a terminal device, causes the terminal device to perform the steps of the various exemplary embodiments of the invention described in the "Exemplary Methods" section of this specification.

[0072] The program product may employ any combination of one or more readable media. A readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0073] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A readable signal medium may also be any readable medium other than a readable storage medium, capable of sending, propagating, or transmitting programs for use by or in conjunction with an instruction execution system, apparatus, or device.

[0074] The program code contained on the readable medium may be transmitted using any suitable medium, including but not limited to wireless, wired, optical fiber, RF, etc., or any suitable combination thereof.

[0075] Program code for performing the operations of this invention can be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java and C++, and conventional procedural programming languages ​​such as C or similar languages. The program code can execute entirely on the user's computing device, partially on the user's device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving remote computing devices, the remote computing device can be connected to the user's computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0076] Furthermore, the above figures are merely illustrative of the processes included in the method according to exemplary embodiments of the present invention, and are not intended to be limiting. It is readily understood that the processes shown in the above figures do not indicate or limit the temporal order of these processes. Additionally, it is readily understood that these processes may be executed synchronously or asynchronously, for example, in multiple modules.

[0077] It should be noted that although several modules or units for the device used to perform actions have been mentioned in the detailed description above, this division is not mandatory. In fact, according to embodiments of this disclosure, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0078] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A construction method for a large nuclear power module using steel plate shear walls, characterized in that, include: Step S100: Modularly disassemble the nuclear power assembly to be transported to obtain several transportable modules comprising the nuclear power assembly to be transported; Step S200: Transport several of the modules to be transported to the installation site using a module sliding system; Step S300: Determine the mass status of each module to be transported during the transportation process based on several first vibration feature vectors corresponding to each module before transportation and several second vibration feature vectors corresponding to each module after transportation. Each of the modules to be transported is equipped with several vibration sensors; the first vibration feature vector is composed of several vibration feature data collected by the vibration sensors during a first time period; the second vibration feature vector is composed of several vibration feature data collected by the vibration sensors during a second time period. The first time period is the time period during which the vibration sensor is tested before transportation; the second time period is the time period during which the vibration sensor is tested after transportation; the duration of the second time period is equal to the duration of the first time period, and the location where the module to be transported is tested during the first time period is the same as the location where the vibration test is conducted during the second time period. Step S400: If the quality status of several modules to be transported is normal, install several modules to be transported to the installation site to obtain the nuclear power assembly to be transported. Step S500: Concrete is poured for the nuclear power assembly to be transported.

2. The method according to claim 1, characterized in that, Step S300 includes: Step S310: During the first time period, apply a preset pressure to several preset positions corresponding to the module to be transported in sequence; Step S320: Based on the vibration feature data collected by each vibration sensor within the first time period, obtain several first vibration feature vectors corresponding to each vibration sensor. Step S330: During the second time period, apply a preset pressure to several preset positions corresponding to the module to be transported in sequence; the preset positions where pressure is applied during the second time period are the same as the preset positions where pressure is applied during the first time period, and the pressure applied during the second time period is equal to the pressure applied during the first time period. Step S340: Based on the vibration feature data collected by each vibration sensor during the second time period, obtain several second vibration feature vectors corresponding to each vibration sensor. Step S350: If the matching degree of the first vibration feature vector and the second vibration feature vector corresponding to the same vibration sensor at the same preset position is greater than the preset matching degree threshold, then it is determined that no vibration abnormality has occurred in the associated area between the vibration sensor and the preset position. Step S360: If no vibration abnormality occurs in the associated area between each vibration sensor and each preset position, then the quality status of the module to be transported during the transportation process is determined to be normal.

3. The method according to claim 2, characterized in that, Step S320 includes: Step S321: Obtain several vibration feature data collected by each vibration sensor when pressure is applied to each preset position corresponding to the module to be transported during the first time period, so as to obtain several first vibration feature vector lists M1, M2, ..., M a ,...,M b Where a = 1, 2, ..., b; b is the number of vibration sensors; M a This is a list of the first vibration feature vectors corresponding to the a-th vibration sensor; M a =(M a1 M a2 ,...,M ac ,...,M ad ); c=1,2,...,d; d is the number of preset positions corresponding to the module to be transported; M ac The first vibration feature vector corresponding to the a-th vibration sensor when pressure is applied to the c-th preset position corresponding to the module to be transported during the first time period; M ac =(M ac1 M ac2 ,...,M ace ,...,M acf ); e=1,2,...,f; f is the number of vibration characteristic data acquisition times when pressure is applied to the c-th preset position corresponding to the module to be transported; M ace The vibration characteristic data acquired by the a-th vibration sensor at the e-th acquisition time when pressure is applied to the c-th preset position corresponding to the module to be transported during the first time period.

4. The method according to claim 3, characterized in that, Step S340 includes: Step S341: Obtain several vibration feature data collected by each vibration sensor when pressure is applied to each preset position corresponding to the module to be transported during the second time period, so as to obtain several second vibration feature vector lists Q1, Q2, ..., Q a ,...,Q b ; where Q a This is a list of the second vibration feature vectors corresponding to the a-th vibration sensor; Q a =(Q a1 Q a2 ,...,Q ac ,...,Q ad );Q ac The second vibration feature vector corresponding to the a-th vibration sensor when pressure is applied to the c-th preset position corresponding to the module to be transported during the second time period; Q ac =(Q ac1 Q ac2 ,...,Q ace ,...,Q acf );Q ace The vibration characteristic data acquired by the a-th vibration sensor at the e-th acquisition time is obtained when pressure is applied to the c-th preset position corresponding to the module to be transported during the second time period.

5. The method according to claim 4, characterized in that, Step S350 includes: Step S351, if in M a and Q a In the middle, M ac and Q ac If the matching degree is greater than the preset matching degree threshold, then it is determined that no vibration abnormality has occurred in the associated area between the a-th vibration sensor and the c-th preset position.

6. The method according to claim 5, characterized in that, Step S350 further includes: Step S3501, if in M a and Q a In the middle, M ac and Q ac If the matching degree is less than or equal to the preset matching degree threshold, then the associated region between the a-th vibration sensor and the c-th preset position is determined as the detection region. Step S3502: After the testing personnel have tested the testing area and determined that no abnormal vibration has occurred in the testing area, step S360 is executed.

7. The method according to claim 6, characterized in that, The vibration sensor is installed at the location corresponding to the stress concentration point or structural weakness of the module to be transported.

8. The method according to claim 7, characterized in that, The module to be transported includes a hidden column (1), a hidden beam (2), a steel plate shear wall (3), and a single steel plate floor slab (4). The hidden column (1) and the hidden beam (2) are connected to each other to form a vertical and horizontal support frame. The hidden column (1) is set at the four corners of the steel plate shear wall (3) and at the intersection of the longitudinal and transverse walls. The hidden beam (2) is set at the intersection of the single steel plate floor slab (4) and the steel plate shear wall (3). The steel plate shear wall (3) is set vertically. The edge of the steel plate shear wall (3) is connected to the hidden column (1) and the hidden beam (2). The single steel plate floor slab (4) is horizontally erected on the hidden beam (2).

9. The method according to claim 8, characterized in that, The steel plate shear wall (3) includes: The outer steel plate (10) of the shear wall is set on both sides to form the outer surface of the steel plate shear wall (3); Shear wall bolts (9) are installed inside the steel plate shear wall (3) and are fixedly connected to the outer steel plate (10) of the shear wall; Shear wall stiffening ribs (12) are provided inside the steel plate shear wall (3) and are fixedly connected to the outer steel plate (10) of the shear wall; The shear wall tie steel (11) is fixedly connected to the middle of the shear wall stiffening ribs (12) corresponding to the two outer steel plates (10) of the shear wall.

10. The method according to claim 9, characterized in that, The single steel plate floor slab (4) includes: The lower steel plate (5) of the floor slab is the basic load-bearing component of the single steel plate floor slab (4); Floor studs (6) penetrate the lower steel plate (5) of the floor slab and are fixedly connected to the lower steel plate (5); The floor slab reinforcement (7) is tied inside the single steel plate floor slab (4); The floor slab stiffening ribs (8) are fixedly connected to the upper surface of the lower steel plate (5) of the floor slab at a preset spacing.

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