Anti-seismic simulation method and device for concrete pile foundation in river valley area and medium

Abstract

The invention provides a river valley area concrete pile foundation anti-seismic simulation method and device and a medium, and relates to the technical field of concrete pile foundation anti-seismic simulation. The method comprises the steps that the preset amplification effect relation S of the seismic action between river valley stratums is obtained; according to a plurality of actual stratum parameters and S of the river valley region, determining an amplification effect value WS of the seismic action between river valley stratums corresponding to the river valley region; according to a plurality of actual stratum parameters of the river valley area and parameters of a concrete pile foundation of the river valley area, a river valley area overall model W is established; the actual constitutive relation corresponding to the concrete pile foundation and WS are endowed with W; obtaining a seismic wave list of each preset type to obtain a seismic wave list set A; the A is used for simulating the W to determine the weak position of the concrete pile foundation in the river valley area; according to the invention, the simulation of the concrete pile foundation is more in line with the actual environment, so that the weak position of the concrete pile foundation is accurately determined.

Description

Technical Field

[0001] The invention relates to the technical field of earthquake-resistant simulation of concrete pile foundations, and in particular to an earthquake-resistant simulation method, equipment and medium for concrete pile foundations in river valley areas. Background Art

[0002] A river valley is a trough-shaped area formed by the geological action of rivers on the surface. It is an erosional landform formed during the flow of rivers. In recent years, a large number of concrete pile foundations built close to river valley terrain have emerged in the construction of coastal and riverside cities. Since the river valley terrain has a seismic amplification effect, it will pose a threat to the seismic safety of structures near the river valley. In order to prevent the concrete pile foundations in the river valley area from being damaged by the geological action of rivers, it is necessary to maintain and regularly strengthen the concrete pile foundations in the river valley area. However, due to the large number of concrete pile foundations in the river valley area, if the concrete pile foundations in each river valley area are comprehensively reinforced, the cost is relatively high. Therefore, how to determine the weak positions of the concrete pile foundations in the river valley area so as to reinforce the weak positions and reduce the maintenance cost has become a technical problem that needs to be solved urgently. Summary of the invention

[0003] In view of the above technical problems, the technical solution adopted by the present invention is: According to a first aspect of the present application, a method for simulating the seismic resistance of concrete pile foundations in river valley areas is provided, the method comprising the following steps: S100, obtaining a preset relationship S of the amplification effect of earthquake action between river valley strata; wherein S is used to determine the amplification effect value of the corresponding river valley on earthquake action according to a number of stratum parameters in the river valley area; S200, according to some actual formation parameters of the river valley area and S, determine the amplification effect value WS of the earthquake action between the corresponding river valley formations in the river valley area; S300, establishing an overall model W of the river valley area according to a number of actual stratum parameters of the river valley area and parameters of the concrete pile foundation of the river valley area; S400, assign the actual constitutive relation corresponding to the concrete pile foundation and WS to W; S500, obtaining a seismic wave list of each preset type to obtain a seismic wave list set A=(A1, A2, ..., A i , …, A n ), i=1, 2,...,n; among them, A i is the list of seismic waves of the i-th preset type, and n is the number of preset types of seismic waves; A i A seismic wave of the i-th preset type including a plurality of different frequencies; S600, using A to simulate W to determine the weak location of the concrete pile foundation in the river valley area.

[0004] Further, S is obtained by the following steps: S110, obtaining river valley stratum models corresponding to different stratum types to obtain a river valley stratum model list set B = (B1, B2, ..., B j , …, B m ), j = 1, 2, ..., m; where B j is the list of valley stratigraphic models corresponding to the jth stratigraphic type, m is the number of stratigraphic types; B j =(B j，1 , B j，2 , …, B j，p , …, B j，q ), p = 1, 2, …, q; where B j，p is the pth river valley stratigraphic model corresponding to the jth stratigraphic type, q is the number of river valley stratigraphic models corresponding to the stratigraphic type; the stratigraphic thickness corresponding to any two river valley stratigraphic models and the ratio of the river valley width to the river valley depth are not exactly the same; S120, obtain the test seismic wave list α=(α1, α2, …, α x , …, α y ), x=1, 2,..., y; among them, α x is the xth test seismic wave, y is the number of test seismic waves; the peak accelerations of any two test seismic waves in α are different; S130, B j，p Place it on the vibration table, apply each test seismic wave in α for testing, and get B j，p The corresponding earthquake response group list μ j，p =(μ j，p_1 , μ j，p_2 ,…,μ j，p_x ,…,μ j，p_y ); where μ j，p_x To B j，p Place on a vibration table and apply α x Measured seismic response group; μ j，p_x =(λ j，p_x , η j，p_x );λ j，p_x To B j，p Place on a vibration table and apply α x The measured seismic response of the strata in front of the river valley, η j，p_x To B j，p Place on a vibration table and apply α x the measured seismic response of the strata behind the river valley; S140, according to μ j，p , determine B j，p The corresponding valley amplification effect on earthquake action [θ j，p ]=[η j，p_x] / [λ j，p_x ]; and then obtain the amplification effect of the valley on the earthquake action of each valley stratum model in B under each test seismic wave in α; S150, performing regression analysis on the amplification effect of the river valley on the earthquake action of each river valley stratum model in B under each test seismic wave in α to obtain S.

[0005] Further, step S600 includes the following steps: S610, obtain A i =(A i，1 , A i，2 , …, A i，u , …, A i，v ), u=1, 2,...,v; among them, A i，u is the seismic wave with the uth frequency in the i-th preset type of seismic wave, and v is the number of seismic waves of different frequencies in each preset type of seismic wave; S620, obtaining a first preset value H=1 and a second preset value G=1; S630, use A H，G Simulate W to obtain the concrete pile foundation in W at A H，G And the stress cloud map YW obtained under the earthquake amplification effect of the corresponding river valley H，G ; S640, if YW H，G If there is no damaged position on the concrete pile foundation in the valley area, it is determined that the concrete pile foundation in the valley area is H，G The seismic effect meets the preset conditions; otherwise, H，G The damaged location on the pile foundation was identified as the weak location of the concrete pile foundation in the river valley area, and A H，G The target seismic wave corresponding to the concrete pile foundation in the river valley area was determined; S650, if G<v, obtain G=G+1; go to S630; otherwise go to S660; S660, if H<n, obtain H=H+1; enter S630; otherwise, jump out of the current processing.

[0006] Furthermore, the preset types of seismic waves include: seismic waves corresponding to frequently occurring earthquakes, seismic waves corresponding to basic earthquakes, and seismic waves corresponding to rarely occurring earthquakes.

[0007] Further, step S400 includes the following steps: S410, setting the contact surface between the soil and the concrete pile foundation to be surface-to-surface contact; S420, setting the surface of the concrete pile foundation as a primary contact surface, and setting the surface of the soil as a secondary contact surface; S430, using the contact algorithm with penalty function and the surface-to-surface discretization algorithm, the friction coefficient is set to μ, the sliding formula is set to finite sliding, and the normal behavior is set to hard contact.

[0008] According to another aspect of the present application, a non-transitory computer-readable storage medium is also provided, in which at least one instruction or at least one program is stored, and the at least one instruction or at least one program is loaded and executed by a processor to implement the above-mentioned method for seismic simulation of concrete pile foundations in river valley areas.

[0009] According to another aspect of the present application, an electronic device is provided, including a processor and the above-mentioned non-transitory computer-readable storage medium.

[0010] The present invention has at least the following beneficial effects: The method for seismic simulation of concrete pile foundations in river valley areas of the present invention obtains a preset amplification effect relationship S of seismic action between river valley strata; determines the amplification effect value WS of seismic action between river valley strata corresponding to the river valley area according to several actual stratum parameters of the river valley area and S; establishes an overall model W of the river valley area according to several actual stratum parameters of the river valley area and parameters of concrete pile foundations in the river valley area, and assigns the actual constitutive relationship corresponding to the concrete pile foundation and the amplification effect value of seismic action between actual river valley strata to W; finally, W is simulated using different types of seismic waves, thereby determining the weak position of the concrete pile foundation in the river valley area; in the present invention, when simulating the concrete pile foundation in the river valley area, the amplification effect value of seismic action between actual river valley strata is assigned to the overall model of the river valley area, so that the simulation of the concrete pile foundation is more in line with the actual environment, thereby improving the accuracy of determining the weak position of the concrete pile foundation, and then accurately maintaining the weak position of the concrete pile foundation, thereby reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 A flow chart of a method for simulating the seismic resistance of concrete pile foundations in river valley areas provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0014] It should be noted that, based on the present disclosure, those skilled in the art should understand that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement a device and / or practice a method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0015] The following will refer to Figure 1 The flowchart of the seismic simulation method for concrete pile foundation in river valley area is shown, which introduces a seismic simulation method for concrete pile foundation in river valley area.

[0016] The seismic simulation method of concrete pile foundation in the river valley area may include the following steps: S100, obtaining a preset relationship S of the amplification effect of earthquake action between river valley strata; wherein S is used to determine the amplification effect value of the corresponding river valley to the earthquake action according to a number of stratum parameters in the river valley area.

[0017] In this embodiment, the seismic amplification effect between river valley strata refers to the phenomenon that when seismic waves propagate in the river valley strata, due to the influence of the stratum structure and topography, the energy of the seismic waves is concentrated in certain areas, resulting in amplified seismic motion; the seismic amplification effect between river valley strata is the result of the combined action of multiple factors such as topography, strata, resonance, etc. during the propagation of seismic waves; it should be noted that the seismic amplification effect between river valley strata is related to the geological parameters of the actual river valley area.

[0018] Furthermore, S can be obtained by the following steps: S110, obtaining river valley stratum models corresponding to different stratum types to obtain a river valley stratum model list set B = (B1, B2, ..., B j , …, B m ), j = 1, 2, ..., m; where B j is the list of valley stratigraphic models corresponding to the jth stratigraphic type, m is the number of stratigraphic types; B j =(B j，1 , B j，2 , …, B j，p , …, B j，q), p = 1, 2, …, q; where B j，p is the pth river valley stratigraphic model corresponding to the jth stratigraphic type, and q is the number of river valley stratigraphic models corresponding to the stratigraphic type; the stratigraphic thickness corresponding to any two river valley stratigraphic models and the ratio of the valley width to the valley depth are not exactly the same.

[0019] In this embodiment, there are many types of strata in the river valley area, and the amplification effects of different strata types and valley width-to-depth ratios on earthquakes are different. Different stratum thicknesses and valley width-to-depth ratios can be set for each stratum type to establish several valley stratum models, thereby obtaining B.

[0020] S120, obtain the test seismic wave list α=(α1, α2, …, α x , …, α y ), x=1, 2,..., y; among them, α x is the xth test seismic wave, y is the number of test seismic waves; the peak accelerations of any two test seismic waves in α are different.

[0021] In this embodiment, test seismic waves with different peak accelerations can be preset, and the peak acceleration can be evenly set within a preset peak acceleration range. The test seismic waves are used to simulate the river valley stratum model.

[0022] S130, B j，p Place it on the vibration table, apply each test seismic wave in α for testing, and get B j，p The corresponding earthquake response group list μ j，p =(μ j，p_1 , μ j，p_2 ,…,μ j，p_x ,…,μ j，p_y ); where μ j，p_x To B j，p Place on a vibration table and apply α x Measured seismic response group; μ j，p_x =(λ j，p_x , η j，p_x );λ j，p_x To B j，p Place on a vibration table and apply α x The measured seismic response of the strata in front of the river valley, η j，p_x To B j，p Place on a vibration table and apply α x Measured seismic response of the strata behind the river valley.

[0023] In this embodiment, each valley model in B can be placed on a vibration table, and then each test seismic wave in α is applied in turn to perform seismic response analysis on each valley model in B, so that the seismic response of the stratum in front of the valley and the seismic response of the stratum behind the valley under each test seismic wave can be calculated to obtain a seismic response group; it should be noted that those skilled in the art can use the existing method of using a vibration table to obtain a list of seismic response groups corresponding to each valley model according to actual needs, which will not be elaborated here.

[0024] S140, according to μ j，p , determine B j，p The corresponding valley amplification effect on earthquake action [θ j，p ]=[η j，p_x ] / [λ j，p_x ]; and then the amplification effect of the valley on the earthquake action of each valley stratum model in B under each test seismic wave in α is obtained.

[0025] In this embodiment, after obtaining the seismic response of the strata in front of the river valley and the seismic response of the strata behind the river valley for each valley model under each test seismic wave through the above steps, the amplification effect of the corresponding river valley on the earthquake can be obtained according to the existing formula.

[0026] It can be understood that each valley model corresponds to the amplification effect of a valley on earthquake action under each test vibration.

[0027] S150, performing regression analysis on the amplification effect of the river valley on the earthquake action of each river valley stratum model in B under each test seismic wave in α to obtain S.

[0028] In this embodiment, the existing regression model can be used to fit the amplification effect of the valley on the seismic action of each valley stratum model in B under each test seismic wave in α, so as to obtain the relationship S of the amplification effect of the seismic action between valley strata that is applicable to any stratum type; it should be noted that the independent variable of S is the geological parameters of the valley, including stratum thickness, valley width, width and depth, and the dependent variable is the corresponding value of the amplification effect of the valley on the seismic action.

[0029] It should be noted that those skilled in the art can use the existing regression model fitting method according to actual needs to perform regression analysis on the amplification effect of the valley on the seismic action of each valley stratum model in B under each test seismic wave in α, and then obtain S, which will not be elaborated here.

[0030] S200, determining the amplification effect value WS of the seismic action between the corresponding river valley strata in the river valley area according to a number of actual stratum parameters in the river valley area and S.

[0031] In this embodiment, several actual stratigraphic parameters of the river valley area where the concrete pile foundation to be simulated is located can be obtained, such as: the stratigraphic thickness of the river valley, the width and depth of the river valley, and then the width-to-depth ratio of the river valley can be obtained; substituting the above-mentioned stratigraphic parameters into S, the amplification effect value WS of the seismic action between the valley strata corresponding to the river valley area where the concrete pile foundation to be simulated is located can be obtained.

[0032] S300: Establish an overall model W of the river valley area according to some actual stratum parameters of the river valley area and parameters of the concrete pile foundation in the river valley area.

[0033] In this embodiment, some actual stratigraphic parameters of the river valley area can be obtained through on-site surveys, and the parameters of the corresponding concrete pile foundations in the river valley area can be obtained through design drawings, so that an overall model W of the river valley area can be established based on some actual stratigraphic parameters of the river valley area and the parameters of the concrete pile foundations in the river valley area. It should be noted that W includes a three-dimensional model of the river valley and a three-dimensional model of the concrete pile foundation, and the relative position between the three-dimensional model of the concrete pile foundation and the three-dimensional model of the river valley is consistent with the actual situation.

[0034] S400, assigning the actual constitutive relation corresponding to the concrete pile foundation and WS to W.

[0035] In this embodiment, based on the design drawings of the concrete pile foundation and the parameters of the concrete used, the actual constitutive relationship corresponding to the concrete pile foundation can be determined, so that the actual constitutive relationship corresponding to the concrete pile foundation and WS can be assigned to W; that is, the actual constitutive relationship of the concrete pile foundation is assigned to the three-dimensional model of the concrete pile foundation.

[0036] Further, step S400 may include the following steps: S410, setting the contact surface between the soil and the concrete pile foundation to be surface-to-surface contact.

[0037] S420, setting the surface of the concrete pile foundation as the main contact surface, and setting the surface of the soil as the secondary contact surface.

[0038] S430, using the contact algorithm with penalty function and the surface-to-surface discretization algorithm, the friction coefficient is set to μ, the sliding formula is set to finite sliding, and the normal behavior is set to hard contact.

[0039] In this embodiment, the pile foundation model is assigned according to the reinforced concrete constitutive relationship given in the design drawings. The contact surface between the soil and the concrete pile body adopts surface-to-surface contact. The stiffness of different materials varies greatly. The material with large stiffness, that is, the surface of concrete, is selected as the main contact surface, and the material with small stiffness, that is, the surface of soil, is selected as the secondary contact surface. The contact algorithm of the penalty function and the surface-to-surface discretization method are selected. The friction coefficient is μ, and the slip formula is set to finite sliding; the normal behavior is set to hard contact. The seismic action relationship between the valley strata is calculated and set according to the actual parameters of the project.

[0040] S500, obtaining a seismic wave list of each preset type to obtain a seismic wave list set A=(A1, A2, ..., A i , …, A n ), i=1, 2,...,n; among them, A i is the list of seismic waves of the i-th preset type, and n is the number of preset types of seismic waves; A i It includes seismic waves of the i-th preset type with several different frequencies.

[0041] In this embodiment, earthquake types are divided into frequent earthquakes, basic earthquakes and rare earthquakes. Therefore, the main difference between different earthquake types lies in the different peak accelerations. Seismic waves of different frequencies can be set for the seismic waves corresponding to each type of earthquake. For example, for frequent earthquakes, 100 seismic waves of different frequencies are set, thereby obtaining A.

[0042] It is understandable that although they are all the same type of earthquakes, the degree of damage to the concrete pile foundation is different due to the different frequencies of different seismic waves. Therefore, setting multi-frequency seismic waves can better simulate the type and frequency of seismic waves that cause greater damage to concrete pile foundations.

[0043] S600, using A to simulate W to determine the weak location of the concrete pile foundation in the river valley area.

[0044] Further, step S600 may include the following steps: S610, obtain A i =(A i，1 , A i，2 , …, A i，u , …, A i，v ), u=1, 2,...,v; among them, A i，u is the seismic wave with the uth frequency in the i-th preset type of seismic wave, and v is the number of seismic waves of different frequencies in each preset type of seismic wave.

[0045] S620, obtaining a first preset value H=1 and a second preset value G=1.

[0046] S630, use AH，G Simulate W to obtain the concrete pile foundation in W at A H，G And the stress cloud map YW obtained under the earthquake amplification effect of the corresponding river valley H，G .

[0047] S640, if YW H，G If there is no damaged position on the concrete pile foundation in the valley area, it is determined that the concrete pile foundation in the valley area is H，G The seismic effect meets the preset conditions; otherwise, H，G The damaged location on the pile foundation was identified as the weak location of the concrete pile foundation in the river valley area, and A H，G The target seismic wave corresponding to the concrete pile foundation in the river valley area was determined.

[0048] S650, if G<v, obtain G=G+1; enter S630; otherwise enter S660.

[0049] S660, if H<n, obtain H=H+1; enter S630; otherwise, jump out of the current processing.

[0050] In this embodiment, through the above steps, first, seismic waves of different frequencies in a preset type of seismic waves are used to simulate W, and a simulated stress cloud map can be obtained. Through the stress cloud map, it can be determined whether there is a damaged position on the model of the concrete pile foundation. If there is a damaged position, the position corresponding to the damaged position on the actual concrete pile foundation is determined as the weak position of the concrete pile foundation. The type and corresponding frequency of the seismic wave that causes more serious damage to the simulated concrete pile foundation can also be determined. Based on the determined type and frequency of the seismic wave, if the type and frequency of the seismic wave occurring in a certain area are the same as the determined type and frequency of the seismic wave, then when designing the concrete pile foundation, the seismic wave can be changed by changing the design structure to avoid damage to the concrete pile foundation.

[0051] In this embodiment, a preset amplification effect relationship S of seismic action between river valley strata is obtained; based on several actual stratum parameters of the river valley area and S, the amplification effect value WS of seismic action between river valley strata corresponding to the river valley area is determined; based on several actual stratum parameters of the river valley area and parameters of concrete pile foundations in the river valley area, an overall model W of the river valley area is established, and the actual constitutive relationship corresponding to the concrete pile foundation and the amplification effect value of seismic action between actual river valley strata are assigned to W; finally, different types of seismic waves are used to simulate W, so as to determine the weak position of the concrete pile foundation in the river valley area; in the present invention, when simulating the concrete pile foundation in the river valley area, the amplification effect value of seismic action between actual river valley strata is assigned to the overall model of the river valley area, so that the simulation of the concrete pile foundation is more in line with the actual environment, thereby improving the accuracy of determining the weak position of the concrete pile foundation, and then accurately maintaining the weak position of the concrete pile foundation, thereby reducing the maintenance cost.

[0052] In addition, the method in this embodiment can accurately simulate the dynamic response of concrete pile foundations in river valley areas under earthquakes, effectively identify the weak links of the structure and guide the reinforcement design, thereby significantly improving the seismic safety of the structure. By combining the shaking table test and numerical simulation, a scientific analysis method is provided to improve the accuracy and reliability of the simulation results. The present invention adjusts the model parameters and seismic wave input according to the actual engineering conditions and regional characteristics, showing good adaptability and flexibility. Potential problems can be discovered before construction, avoiding rework and additional reinforcement during the construction process, saving material and labor costs, and improving the economy of the project. At the same time, the structural damage caused by the earthquake is reduced, the impact of post-disaster reconstruction on the environment is reduced, and the environmentally friendly design concept is embodied, with obvious technical advantages and broad application prospects.

[0053] In addition, although the steps of the method in the present disclosure are described in a specific order in the drawings, this does not require or imply that the steps must be performed in this specific order, or that all the steps shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps, etc.

[0054] An embodiment of the present invention also provides a non-transitory computer-readable storage medium, which can be set in an electronic device to store at least one instruction or at least one program related to implementing a method in a method embodiment. The at least one instruction or the at least one program is loaded and executed by the processor to implement the method provided in the above embodiment.

[0055] The program product may adopt any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0056] Computer readable signal media may include data signals propagated in baseband or as part of a carrier wave, in which readable program code is carried. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Readable signal media may also be any readable medium other than a readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0057] The program code embodied on the readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination of the foregoing.

[0058] Program code for performing the operations of the present application may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, etc., and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as a separate software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., using an Internet service provider to connect through the Internet).

[0059] An embodiment of the present invention further provides an electronic device, comprising a processor and the aforementioned non-transitory computer-readable storage medium.

[0060] The electronic device is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0061] The electronic device is presented in the form of a general-purpose computing device. The components of the electronic device may include, but are not limited to: the at least one processor mentioned above, the at least one memory mentioned above, and a bus connecting different system components (including the memory and the processor).

[0062] The memory stores program codes, which can be executed by the processor, so that the processor executes the steps in various embodiments described in this specification.

[0063] The memory may include readable media in the form of volatile memory, such as random access memory (RAM) and / or cache memory, and may further include read only memory (ROM).

[0064] The memory may also include a program / utility having a set (at least one) of program modules, such program modules including but not limited to: an operating system, one or more application programs, other program modules and program data, each of which or some combination may include an implementation of a network environment.

[0065] The bus may represent one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or a local bus using any of a variety of bus architectures.

[0066] The electronic device may also communicate with one or more external devices (e.g., keyboards, pointing devices, Bluetooth devices, etc.), may communicate with one or more devices that enable a user to interact with the electronic device, and / or may communicate with any device (e.g., routers, modems, etc.) that enables the electronic device to communicate with one or more other computing devices. Such communication may be performed through an input / output (I / O) interface. Furthermore, the electronic device may also communicate with one or more networks (e.g., local area networks (LANs), wide area networks (WANs), and / or public networks, such as the Internet) through a network adapter. The network adapter communicates with other modules of the electronic device through a bus. It should be understood that, although not shown in the figure, other hardware and / or software modules may be used in conjunction with the electronic device, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, etc.

[0067] Through the description of the above implementation, it is easy for those skilled in the art to understand that the example implementation described here can be implemented by software, or by software combined with necessary hardware. Therefore, the technical solution according to the implementation of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, including several instructions to enable a computing device (which can be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the implementation of the present disclosure.

[0068] An embodiment of the present invention further provides a computer program product, which includes program code. When the program product is run on an electronic device, the program code is used to enable the electronic device to execute the steps of the method according to various exemplary embodiments of the present invention described above in this specification.

[0069] Although some specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present invention. It should also be understood by those skilled in the art that various modifications may be made to the embodiments without departing from the scope and spirit of the present invention.

Claims

1. A method for simulating the seismic resistance of concrete pile foundations in river valley areas, characterized in that: The method comprises the following steps: S100, obtaining a preset relationship S of the amplification effect of earthquake action between river valley strata; wherein S is used to determine the amplification effect value of the corresponding river valley on earthquake action according to a number of stratum parameters in the river valley area; S200, according to some actual formation parameters of the river valley area and S, determine the amplification effect value WS of the earthquake action between the river valley formations corresponding to the river valley area; S300, establishing an overall model W of the river valley area according to a number of actual stratum parameters of the river valley area and parameters of the concrete pile foundation of the river valley area; S400, assign the actual constitutive relation corresponding to the concrete pile foundation and WS to W; S500, obtaining a seismic wave list of each preset type to obtain a seismic wave list set A=(A1, A2, ..., A i , …, A n ), i=1, 2,...,n; among them, A i is the list of the i-th preset type of seismic waves, n is the number of preset types of seismic waves; A i A seismic wave of the i-th preset type including a plurality of different frequencies; S600, using A to simulate W to determine the weak location of the concrete pile foundation in the river valley area.

2. The method for simulating earthquake resistance of concrete pile foundation in river valley area according to claim 1 is characterized in that: S is obtained by the following steps: S110, obtaining river valley stratum models corresponding to different stratum types to obtain a river valley stratum model list set B = (B1, B2, ..., B j , …, B m ), j = 1, 2, …, m; where B j is the list of valley stratigraphic models corresponding to the jth stratigraphic type, m is the number of stratigraphic types; B j =(B j，1 , B j，2 , …, B j，p , …, B j，q ), p = 1, 2, …, q; where B j，p is the pth river valley stratigraphic model corresponding to the jth stratigraphic type, q is the number of river valley stratigraphic models corresponding to the stratigraphic type; the stratigraphic thickness corresponding to any two river valley stratigraphic models and the ratio of the river valley width to the river valley depth are not exactly the same; S120, obtain the test seismic wave list α=(α1, α2, …, α x , …, α y ), x=1, 2,..., y; among them, α x is the xth test seismic wave, y is the number of test seismic waves; the peak accelerations of any two test seismic waves in α are different; S130, B j，p Place it on the vibration table, apply each test seismic wave in α for testing, and get B j，p The corresponding earthquake response group list μ j，p =(μ j，p_1 , μ j，p_2 ,…,μ j，p_x ,…,μ j，p_y ); where μ j，p_x To B j，p Place on a vibration table and apply α x Measured seismic response group; μ j，p_x =(λ j，p_x , η j，p_x );λ j，p_x To B j，p Place on a vibration table and apply α x The measured seismic response of the strata in front of the river valley, η j，p_x To B j，p Place on a vibration table and apply α x the measured seismic response of the strata behind the river valley; S140, according to μ j，p , determine B j，p The corresponding valley amplification effect on earthquake action [θ j，p ]=[η j，p_x ] / [λ j，p_x ]; and then obtain the amplification effect of the valley on the earthquake action of each valley stratum model in B under each test seismic wave in α; S150, performing regression analysis on the amplification effect of the river valley on the earthquake action of each river valley stratum model in B under each test seismic wave in α to obtain S.

3. The method for simulating earthquake resistance of concrete pile foundation in river valley area according to claim 1, characterized in that: Step S600 includes the following steps: S610, obtain A i =(A i，1 , A i，2 , …, A i，u , …, A i，v ), u=1, 2,...,v; among them, A i，u is the seismic wave with the uth frequency in the i-th preset type of seismic wave, and v is the number of seismic waves of different frequencies in each preset type of seismic wave; S620, obtaining a first preset value H=1 and a second preset value G=1; S630, use A H，G Simulate W to obtain the concrete pile foundation in W at A H，G And the stress cloud map YW obtained under the earthquake amplification effect of the corresponding river valley H，G ; S640, if YW H，G If there is no damaged position on the concrete pile foundation in the valley area, it is determined that the concrete pile foundation in the valley area is H，G The seismic effect meets the preset conditions; otherwise, H，G The damaged location on the pile foundation was identified as the weak location of the concrete pile foundation in the river valley area, and A H，G The target seismic wave corresponding to the concrete pile foundation in the river valley area was determined; S650, if G<v, obtain G=G+1; go to S630; otherwise go to S660; S660, if H<n, obtain H=H+1; enter S630; otherwise, jump out of the current processing.

4. The method for simulating earthquake resistance of concrete pile foundation in river valley area according to claim 1, characterized in that: The preset types of seismic waves include: seismic waves corresponding to frequently occurring earthquakes, seismic waves corresponding to basic earthquakes, and seismic waves corresponding to rarely occurring earthquakes.

5. The method for simulating earthquake resistance of concrete pile foundation in river valley area according to claim 1, characterized in that: Step S400 includes the following steps: S410, setting the contact surface between the soil and the concrete pile foundation to be surface-to-surface contact; S420, setting the surface of the concrete pile foundation as a primary contact surface, and setting the surface of the soil as a secondary contact surface; S430, using the contact algorithm with penalty function and the surface-to-surface discretization algorithm, the friction coefficient is set to μ, the sliding formula is set to finite sliding, and the normal behavior is set to hard contact.

6. A non-transitory computer-readable storage medium, wherein at least one instruction or at least one program is stored in the storage medium, characterized in that: The at least one instruction or the at least one program is loaded and executed by the processor to implement the earthquake-resistant simulation method for concrete pile foundations in river valley areas as described in any one of claims 1 to 5.

7. An electronic device, characterized in that: Includes a processor and the non-transitory computer-readable storage medium of claim 6.

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