A standardized design method and system for bridge embedded parts

Abstract

This invention provides a standardized design method and system for bridge embedded parts, comprising: obtaining a first stress-deformation constraint value of a precision-rolled threaded steel bar within concrete and a second stress-deformation constraint value of a shear key within concrete; designing the embedded part based on the first and second stress-deformation constraint values; wherein, during the embedded part design process, multiple parameters are specifically set according to the tonnage value of the embedded part, and anti-corrosion treatment is performed to complete the embedded part design. This invention solves the problem that existing bridge embedded part designs are difficult to meet actual construction needs.

Description

Technical Field

[0001] This invention relates to the field of bridge design technology, and in particular to a standardized design method and system for bridge embedded parts. Background Technology

[0002] Currently, most embedded parts in construction structures adopt the type of embedded steel plates + anchoring steel bars (or precision-rolled threaded steel climbing cone tie rods). These are designed and calculated by on-site engineers, and fabricated by on-site workers. The embedded parts are generally connected to the structure by welding. This method brings significant construction risks. The skill levels of designers vary, and there is insufficient calculation and analysis of factors such as prying force effects and reasonable anchor bolt spacing, resulting in insufficient load-bearing capacity of the embedded parts. At the same time, the quality of on-site welding is difficult to control, especially high-altitude welding operations, which are virtually impossible to inspect and accept, making connection failure a high-probability, high-risk issue. Embedded plates exposed on the concrete surface require anti-corrosion treatment after construction to prevent the formation of rust channels that could affect the durability of the main structure. Furthermore, numerous embedded plates on the concrete facade negatively impact the appearance of the main structure.

[0003] Using 60t as the dividing line, reversible embedded parts are divided into two categories: small-tonnage embedded parts (with tensile and shear strength up to 60t, including 60t) mainly consist of six basic parts: precision-rolled threaded steel bars, climbing tapered bolts, circular shear-tensile connecting parts, nuts, tensile seats, and shear seats. Their combined application can meet tensile and shear strength requirements from 5t to 60t. Large-tonnage embedded parts (with tensile and shear strength above 60t) mainly consist of embedded screws, climbing tapered bolts, bolts, seats, connecting pins, and connecting lugs. Small-tonnage embedded parts are most widely used in construction, meeting most needs in building construction and bridges. They are mainly used for fixing construction pipelines, attaching work platforms to walls, connecting small brackets to walls, and connecting brackets to walls. Large-tonnage embedded parts are mainly used for attaching large-tonnage falsework at high altitudes, such as the casting of box girder zero blocks and the casting of main tower crossbeams. Therefore, there is a need for a scientific and standardized design method that meets the practical application requirements for both small and large tonnage bridge embedded parts. Summary of the Invention

[0004] This invention provides a standardized design method and system for bridge embedded parts, which solves the problem that existing bridge embedded part designs cannot meet actual construction needs.

[0005] This invention provides a standardized design method for bridge embedded parts, comprising:

[0006] Obtain the first stress-deformation constraint value of the fine-rolled threaded steel bar in concrete and the second stress-deformation constraint value of the shear key in concrete;

[0007] The design of embedded parts is based on the first stress-deformation constraint value and the second stress-deformation constraint value;

[0008] In the process of designing the embedded parts, multiple parameters are set specifically according to the tonnage of the embedded parts, and anti-corrosion treatment is carried out to complete the design of the embedded parts.

[0009] According to a standardized design method for bridge embedded parts provided by the present invention, the step of obtaining the first stress-deformation constraint value of the precision-rolled threaded steel bar in concrete and the second stress-deformation constraint value of the shear key in concrete specifically includes:

[0010] By conducting stress and deformation tests on fine-rolled threaded steel bars in concrete, the proportion of the largest deformation at the concrete surface is determined, and the first stress-deformation constraint value is obtained.

[0011] By conducting stress and deformation tests on shear keys within concrete, the deformation of the shear keys embedded in the concrete is mainly rotational deformation, with an additional portion of bending deformation. Within a range of one diameter close to the concrete surface, the proportion of deformation is determined, and the second stress-deformation constraint value is obtained.

[0012] According to the standardized design method for bridge embedded parts provided by the present invention, the stress and deformation test is conducted on the shear key in the concrete. The deformation of the shear key embedded in the concrete is mainly rotational deformation, with an additional part of bending deformation. Within a range of one diameter close to the concrete surface, the proportion of deformation is determined to obtain a second stress-deformation constraint value. Specifically, this includes:

[0013] The deformation of the shear key embedded in the concrete is mainly rotational deformation, with an additional part of bending deformation. Calculate the corresponding concrete compressive strength within a range of one diameter close to the concrete surface.

[0014] A polar coordinate system is established with the shear pin axis as the origin. Strain and stress decrease as the polar coordinate increases. Equations are established to inversely deduce the concrete strain and stress.

[0015] Based on concrete strain and stress, the micro-strain force and compressive stress of concrete under shear force at a set length are calculated using Saint-Venant's principle, and the second stress-deformation constraint value is obtained.

[0016] According to a standardized design method for bridge embedded parts provided by the present invention, the step of setting multiple parameters specifically based on the tonnage value of the embedded part during the design process includes:

[0017] In the design of embedded parts, if the first embedded part structure with a tonnage value lower than the preset value needs to be constrained by both tension and shear boundaries, the tension and shear embedded parts are set separately.

[0018] By utilizing the tension of the upper chord of the triangular bracket and the force characteristics of the diagonal brace transmitting compression and shear, the load is transferred to the concrete through two components: tension and compression / shear.

[0019] When using high-strength threaded steel for tensile pre-embedding and when using tail anchoring pre-embedding plates, the tensile and shear pre-embedding lengths are set according to the first preset value.

[0020] According to a standardized design method for bridge embedded parts provided by the present invention, the step of setting multiple parameters specifically based on the tonnage value of the embedded part during the design process includes:

[0021] In the design of embedded parts, if the second embedded part structure with a tonnage value greater than the preset value needs to be constrained by both tension and shear boundaries, the tension and shear embedded parts are set separately.

[0022] When using high-strength threaded steel for tensile pre-embedding and when using tail anchoring pre-embedding plates, the tensile and shear pre-embedding lengths are set according to the second preset value.

[0023] According to a standardized design method for bridge embedded parts provided by the present invention, the step of setting multiple parameters specifically according to the tonnage value of the embedded part during the design process further includes:

[0024] The bolt holes of the tensile type embedded seat are round holes, while the bolt holes of the shear type embedded seat are vertical oval holes. When the concrete internal threaded climbing cone is embedded, a positioning plate process is used to install it on the template.

[0025] This invention also provides a standardized design system for bridge embedded parts, the system comprising:

[0026] The stress-deformation constraint module is used to obtain the first stress-deformation constraint value of the fine-rolled threaded steel bar in concrete and the second stress-deformation constraint value of the shear key in concrete;

[0027] The embedded part design module is used to design embedded parts based on the first stress-deformation constraint value and the second stress-deformation constraint value.

[0028] In the process of designing the embedded parts, multiple parameters are set specifically according to the tonnage of the embedded parts, and anti-corrosion treatment is carried out to complete the design of the embedded parts.

[0029] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement a standardized design method for bridge embedded parts as described above.

[0030] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements a standardized design method for bridge embedded parts as described above.

[0031] The present invention also provides a computer program product, including a computer program that, when executed by a processor, implements a standardized design method for bridge embedded parts as described above.

[0032] This invention provides a standardized design method and system for bridge embedded parts. By conducting experiments on the stress and deformation of precision-rolled threaded steel bars and shear keys in concrete, the constraint state is determined. Embedded parts are designed according to different tonnage values, which improves the design accuracy of bridge embedded parts, meets the needs of practical applications, reduces the workload, and improves construction efficiency. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is one of the flowcharts illustrating a standardized design method for bridge embedded parts provided by this invention.

[0035] Figure 2 These are deformation diagrams of precision-rolled threaded steel bars of different diameters provided by this invention.

[0036] Figure 3 This is a simplified diagram of the shear key under stress in concrete provided by the present invention.

[0037] Figure 4 This is the deformation curve of a 100mm shear key in C40 concrete provided by the present invention.

[0038] Figure 5 This is a simplified diagram for calculating concrete strain and stress provided by the present invention.

[0039] Figure 6 This is a micro-strain curve of concrete at the shear key contact area provided by the present invention.

[0040] Figure 7 This is a concrete stress curve at the shear key contact area provided by the present invention.

[0041] Figure 8 This is a schematic diagram of the module connection of a standardized design system for bridge embedded parts provided by the present invention.

[0042] Figure 9 This is a schematic diagram of the structure of the electronic device provided by the present invention.

[0043] Reference numerals: 110: Stress-deformation constraint module; 120: Embedded part design module; 910: Processor; 920: Communication interface; 930: Memory; 940: Communication bus. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0045] The following is combined Figure 1 The present invention describes a standardized design method for bridge embedded parts, comprising: step 100, obtaining the first stress-deformation constraint value of the fine-rolled threaded steel bar in concrete and the second stress-deformation constraint value of the shear key in concrete.

[0046] Specifically, this includes: conducting stress and deformation tests on finely rolled threaded steel bars inside concrete to determine the proportion of the largest deformation on the concrete surface and derive the first stress-deformation constraint value;

[0047] By conducting stress and deformation tests on shear keys within concrete, the deformation of the shear keys embedded in the concrete is mainly rotational deformation, with an additional portion of bending deformation. Within a range of one diameter close to the concrete surface, the proportion of deformation is determined, and the second stress-deformation constraint value is obtained.

[0048] In this invention, the stress and deformation of finely rolled threaded steel bars in concrete are analyzed.

[0049] .

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[0055] The calculations were performed by pre-embedding 15mm, 18mm, and 25mm precision-rolled threaded steel bars into C40 concrete, with a pre-embedding length of 25d. The elastic modulus of the steel was E=200GPa, and the elastic modulus of the C40 concrete was E. c =32.5GPa, calculation parameters are shown in Table 1.

[0056] Table 1 Calculation parameters for precision rolled threaded steel bars of different diameters

[0057] .

[0058] from Figure 2 As can be seen, the fine-rolled threaded steel embedded in the concrete is constrained by the concrete, and the part with the greatest deformation is within 20% of the concrete surface (about 5 times the diameter of the fine-rolled threaded steel), accounting for more than 90% of the total deformation. Setting a climbing cone within this range can effectively improve the shear resistance of the embedded fine-rolled threaded steel. On a conservative basis, the shear strength after embedding the climbing cone is taken as 57.7% of the design tensile strength of the fine-rolled threaded steel.

[0059] Stress and deformation tests were conducted on shear keys embedded in concrete. The deformation of the shear keys embedded in the concrete was mainly rotational deformation, with some bending deformation. The proportion of deformation within a range of one diameter close to the concrete surface was determined, and the second stress-deformation constraint value was obtained, which specifically included:

[0060] The deformation of the shear key embedded in the concrete is mainly rotational deformation, with an additional part of bending deformation. Calculate the corresponding concrete compressive strength within a range of one diameter close to the concrete surface.

[0061] A polar coordinate system is established with the shear pin axis as the origin. Strain and stress decrease as the polar coordinate increases. Equations are established to inversely deduce the concrete strain and stress.

[0062] Based on concrete strain and stress, the micro-strain force and compressive stress of concrete under shear force at a set length are calculated using Saint-Venant's principle, and the second stress-deformation constraint value is obtained.

[0063] In this invention, reference Figure 3 The stress and deformation of shear keys in concrete were analyzed.

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[0070] The calculation is performed using a 100mm diameter shear key embedded in C40 concrete. The embedded length of the shear key is 3d, the elastic modulus of the steel is E=200GPa, and the elastic modulus of the C40 concrete is E.c =32.5GPa, calculation parameters are shown in Table 2.

[0071] Table 2 Calculation parameters for shear keys of different diameters

[0072] .

[0073] from Figure 4 As can be seen, the deformation of the shear key embedded in the concrete is mainly rotational deformation, with an additional part of bending deformation. Within a range of one diameter close to the concrete surface, the deformation accounts for more than 65% of the total. It is necessary to verify the compressive strength of the concrete in this part to prevent concrete splitting.

[0074] A polar coordinate system is established with the shear pin axis as the origin. Strain and stress decrease as the polar coordinate increases. Equations are established to inversely deduce the concrete strain and stress at R1. A simplified calculation diagram is shown below. Figure 5 .

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[0080] According to Saint-Venant's principle, let R2 = 100R = 5m, R1 = R = 0.05m. E c =32.5GPa, calculate the micro-strain and compressive stress of concrete with a 100mm diameter shear key subjected to a 100t shear force. (Reference) Figure 6 and Figure 7 The uniaxial ultimate compressive strain of C40 concrete is 1790. με The ultimate compressive strain at the shear key contact point did not exceed the standard. The high-stress part is mainly close to the 1 / 3 depth of the concrete surface. It is recommended to appropriately reinforce the concrete within this range to prevent concrete edge spalling.

[0081] Step 200: Design the embedded part based on the first stress-deformation constraint value and the second stress-deformation constraint value; during the design process of the embedded part, set multiple parameters in a targeted manner according to the tonnage value of the embedded part, and carry out anti-corrosion treatment to complete the design of the embedded part.

[0082] Specifically, this includes: in the process of designing embedded parts, if the first embedded part structure with a tonnage value lower than the preset value needs to be subject to both tension and shear boundary constraints, the tension and shear embedded parts shall be set separately;

[0083] By utilizing the tension of the upper chord of the triangular bracket and the force characteristics of the diagonal brace transmitting compression and shear, the load is transferred to the concrete through two components: tension and compression / shear.

[0084] When using high-strength threaded steel for tensile pre-embedding and when using tail anchoring pre-embedding plates, the tensile and shear pre-embedding lengths are set according to the first preset value.

[0085] In the design of embedded parts, if the second embedded part structure with a tonnage value greater than the preset value needs to be constrained by both tension and shear boundaries, the tension and shear embedded parts are set separately.

[0086] When using high-strength threaded steel for tensile pre-embedding and when using tail anchoring pre-embedding plates, the tensile and shear pre-embedding lengths are set according to the second preset value.

[0087] In this invention, 60t is used as the dividing line to divide the circumferential embedded parts into two categories. Small-tonnage embedded parts have tensile and shear strength of 60t or less (including 60t). These small-tonnage embedded parts mainly consist of six basic components: precision-rolled threaded steel bars, climbing cone bolts, circular shear-tensile connecting parts, nuts, tensile seats, and shear seats. Their combined application can meet tensile and shear strength requirements of 5t to 60t. Large-tonnage embedded parts have tensile and shear strength exceeding 60t. Their main components include embedded screws, climbing cones, bolts, seats, connecting pins, and connecting ear plates. Small-tonnage embedded parts are most widely used in construction and can meet most needs in building construction and bridges. They are mainly used for fixing construction pipelines, attaching work platforms to walls, connecting small brackets to walls, and connecting brackets to walls. Large-tonnage embedded parts are mainly used for attaching large-tonnage falsework to cast-in-place box girder zero blocks and cast-in-place main tower crossbeams at high altitudes.

[0088] For the first embedded part structure, namely the small-tonnage embedded part with tensile and shear strength of 60t or less (including 60t), refer to Tables 3-5, which show the stress conditions of single-piece combination, tensile combination, and shear combination, respectively.

[0089] Table 3. Stress Conditions of Individual Components Combined

[0090] .

[0091] Table 4 Tensile Combined Stress Conditions

[0092] .

[0093] Table 5 Shear Combination Stress Conditions

[0094] .

[0095] Individual embedded parts should be subjected to tension, shear, or compression-shear, avoiding combinations of bending-shear, bending-tension, and bending-tension-shear to minimize bending stress. When the structure requires both tension and shear constraints, tension and shear embedded parts can be installed separately. The tension characteristics of the upper chord of the triangular bracket and the shear-compression characteristics of the diagonal bracing are fully utilized to transfer the load to the concrete through both tension and compression-shear components. Precision rolled threaded steel uses standardized products. The climbing cone nuts and tension-shear connectors are made of 45# steel, heat-treated, and meet or exceed the 8.8 grade bolt standard. Nuts are 8.8~10.9 grade national standard parts. Welded structures are factory-processed and undergo flaw detection inspection; some finished products undergo load testing. When precision rolled threaded steel is used for tension embedding, the embedded length is 35d; when used for shear embedding, the embedded length is 25d. When using a tail-anchored embedded plate, the embedded lengths for both tension and shear can be shortened by 5d. Exposed structural components should be galvanized or coated to prevent rust from contaminating the concrete surface.

[0096] For the second type of embedded part structure, namely, embedded parts with tensile and shear strength of 60t or more, which are large-tonnage embedded parts, large-tonnage embedded parts are generally used for wall attachment of heavy-duty high-altitude supports. The space of the embedded parts is more spacious than that of small-tonnage embedded parts. In the design, a uniform external dimension is adopted, and different stress requirements are achieved by adjusting the number of embedded screws and shear keys. Refer to Tables 6-8 for the stress conditions of different types of large-tonnage embedded parts.

[0097] Table 6 Tensile Embedded Parts for 100~300t Precision Rolled Threaded Steel

[0098] .

[0099] Table 7 Tensile Embedded Parts for 100~300t Threaded Steel Bars

[0100] .

[0101] Table 8 Shear-resistant Embedded Parts for 100~300t Precision Rolled Threaded Steel

[0102] .

[0103] Large-tonnage single embedded parts are subjected to tension, shear, or compression-shear, avoiding bending-shear, bending-tension, and bending-tension-shear combinations as much as possible to minimize bending stress on the embedded parts. When the structure requires both tension and shear boundary constraints, tension and shear embedded parts can be installed separately. The tension characteristics of the upper chord of the triangular bracket and the shear-compression characteristics of the diagonal bracing are fully utilized to transfer the load to the concrete through the two components of tension and compression-shear. Precision rolled threaded steel and high-strength bolts are standardized products; the climbing cone nuts are made of 45# steel, heat-treated, and meet or exceed the 8.8 grade bolt standard; the nuts are 8.8~10.9 grade national standard parts. The embedded seat welding structure is factory-processed and undergoes flaw detection inspection; some finished products undergo load testing. When precision rolled threaded steel is used for tensile embedded parts, the embedded length is 35d; when used for shear embedded parts, the embedded length is 25d. When using a tail anchor embedded plate, the embedded lengths for both tensile and shear embedded parts can be shortened by 5d. Exposed structural components are galvanized or painted to prevent rust from contaminating the concrete surface. The bolt holes for tensile-type embedded seats are round, with a diameter 1-2 mm larger than the bolt. The bolt holes for shear-type embedded seats are vertical oval holes with a center distance of 0.5d at the round ends, and a diameter 1-2 mm larger than the bolt. When embedding the internal threaded rod in concrete, a positioning plate is used to install it on the formwork.

[0104] This invention provides a standardized design method for bridge embedded parts. By conducting experiments on the stress and deformation of precision-rolled threaded steel bars and shear keys in concrete, the constraint state is determined. Embedded parts are designed according to different tonnage values, which improves the design accuracy of bridge embedded parts, meets practical application requirements, reduces the workload, and improves construction efficiency.

[0105] refer to Figure 8 The present invention also discloses a standardized design system for bridge embedded parts, the system comprising:

[0106] The stress-deformation constraint module 110 is used to obtain the first stress-deformation constraint value of the fine-rolled threaded steel bar in concrete and the second stress-deformation constraint value of the shear key in concrete.

[0107] The embedded part design module 120 is used to design embedded parts based on the first stress-deformation constraint value and the second stress-deformation constraint value.

[0108] In the process of designing the embedded parts, multiple parameters are set specifically according to the tonnage of the embedded parts, and anti-corrosion treatment is carried out to complete the design of the embedded parts.

[0109] Obtaining the first stress-deformation constraint value of the fine-rolled threaded steel bar in concrete and the second stress-deformation constraint value of the shear key in concrete specifically includes:

[0110] By conducting stress and deformation tests on fine-rolled threaded steel bars in concrete, the proportion of the largest deformation at the concrete surface is determined, and the first stress-deformation constraint value is obtained.

[0111] By conducting stress and deformation tests on shear keys within concrete, the deformation of the shear keys embedded in the concrete is mainly rotational deformation, with an additional portion of bending deformation. Within a range of one diameter close to the concrete surface, the proportion of deformation is determined, and the second stress-deformation constraint value is obtained.

[0112] Stress and deformation tests were conducted on shear keys embedded in concrete. The deformation of the shear keys embedded in the concrete was mainly rotational deformation, with some bending deformation. The proportion of deformation within a range of one diameter close to the concrete surface was determined, and the second stress-deformation constraint value was obtained, which specifically included:

[0113] The deformation of the shear key embedded in the concrete is mainly rotational deformation, with an additional part of bending deformation. Calculate the corresponding concrete compressive strength within a range of one diameter close to the concrete surface.

[0114] A polar coordinate system is established with the shear pin axis as the origin. Strain and stress decrease as the polar coordinate increases. Equations are established to inversely deduce the concrete strain and stress.

[0115] Based on concrete strain and stress, the micro-strain force and compressive stress of concrete under shear force at a set length are calculated using Saint-Venant's principle, and the second stress-deformation constraint value is obtained.

[0116] During the design process of the embedded parts, several parameters are specifically set according to the tonnage value of the embedded parts, including:

[0117] In the design of embedded parts, if the first embedded part structure with a tonnage value lower than the preset value needs to be constrained by both tension and shear boundaries, the tension and shear embedded parts are set separately.

[0118] By utilizing the tension of the upper chord of the triangular bracket and the force characteristics of the diagonal brace transmitting compression and shear, the load is transferred to the concrete through two components: tension and compression / shear.

[0119] When using high-strength threaded steel for tensile pre-embedding and when using tail anchoring pre-embedding plates, the tensile and shear pre-embedding lengths are set according to the first preset value.

[0120] During the design process of the embedded parts, several parameters are specifically set according to the tonnage value of the embedded parts, including:

[0121] In the design of embedded parts, if the second embedded part structure with a tonnage value greater than the preset value needs to be constrained by both tension and shear boundaries, the tension and shear embedded parts are set separately.

[0122] When using high-strength threaded steel for tensile pre-embedding and when using tail anchoring pre-embedding plates, the tensile and shear pre-embedding lengths are set according to the second preset value.

[0123] In the design process of the embedded parts, multiple parameters are set specifically according to the tonnage value of the embedded parts, including:

[0124] The bolt holes of the tensile type embedded seat are round holes, while the bolt holes of the shear type embedded seat are vertical oval holes. When the concrete internal threaded climbing cone is embedded, a positioning plate process is used to install it on the template.

[0125] Figure 9 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 9 As shown, the electronic device may include a processor 910, a communication interface 920, a memory 930, and a communication bus 940, wherein the processor 910, the communication interface 920, and the memory 930 communicate with each other via the communication bus 940. The processor 910 can call logical instructions in the memory 930 to execute a standardized design method for bridge embedded parts. This method includes: obtaining a first stress-deformation constraint value of the fine-rolled threaded steel bar in concrete and a second stress-deformation constraint value of the shear key in concrete; designing the embedded part based on the first and second stress-deformation constraint values; wherein, during the embedded part design process, multiple parameters are specifically set according to the tonnage value of the embedded part, and anti-corrosion treatment is performed to complete the embedded part design.

[0126] Furthermore, the logical instructions in the aforementioned memory 930 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0127] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute a standardized design method for bridge embedded parts provided by the above methods. The method includes: obtaining a first stress-deformation constraint value of fine-rolled threaded steel in concrete and a second stress-deformation constraint value of shear keys in concrete; designing embedded parts based on the first stress-deformation constraint value and the second stress-deformation constraint value; wherein, during the design process of the embedded parts, multiple parameters are set specifically according to the tonnage value of the embedded parts, and anti-corrosion treatment is performed to complete the design of the embedded parts.

[0128] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements a standardized design method for bridge embedded parts provided by the methods described above. This method includes: obtaining a first stress-deformation constraint value of a fine-rolled threaded steel bar in concrete and a second stress-deformation constraint value of a shear key in concrete; designing the embedded part based on the first and second stress-deformation constraint values; wherein, during the embedded part design process, multiple parameters are specifically set according to the tonnage value of the embedded part, and anti-corrosion treatment is performed to complete the embedded part design.

[0129] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0130] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0131] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A standardized design method for bridge embedded parts, characterized in that, include: Obtain the first stress-deformation constraint value of the fine-rolled threaded steel bar in concrete and the second stress-deformation constraint value of the shear key in concrete; The design of embedded parts is based on the first stress-deformation constraint value and the second stress-deformation constraint value; In the process of designing the embedded parts, multiple parameters are set in a targeted manner according to the tonnage value of the embedded parts, and anti-corrosion treatment is carried out to complete the design of the embedded parts. The acquisition of the first stress-deformation constraint value of the fine-rolled threaded steel bar in concrete and the second stress-deformation constraint value of the shear key in concrete specifically includes: By conducting stress and deformation tests on fine-rolled threaded steel bars in concrete, the proportion of the largest deformation at the concrete surface is determined, and the first stress-deformation constraint value is obtained. Stress and deformation tests were conducted on shear keys embedded in concrete. The deformation of the shear keys embedded in the concrete was mainly rotational deformation, with some bending deformation. The proportion of deformation within a range of one diameter close to the concrete surface was determined, and the second stress-deformation constraint value was obtained, which specifically included: The deformation of the shear key embedded in the concrete is mainly rotational deformation, with an additional part of bending deformation. Calculate the corresponding concrete compressive strength within a range of one diameter close to the concrete surface. A polar coordinate system is established with the shear pin axis as the origin. Strain and stress decrease as the polar coordinate increases. Equations are established to inversely deduce the concrete strain and stress. Based on concrete strain and stress, the micro-strain force and compressive stress of concrete under shear force at a set length are calculated using Saint-Venant's principle, and the second stress-deformation constraint value is obtained.

2. The standardized design method for bridge embedded parts according to claim 1, characterized in that, The process of designing the embedded parts involves setting multiple parameters specifically based on the tonnage value of the embedded parts, including: In the design of embedded parts, if the first embedded part structure with a tonnage value lower than the preset value needs to be constrained by both tension and shear boundaries, the tension and shear embedded parts are set separately. By utilizing the tension of the upper chord of the triangular bracket and the force characteristics of the diagonal brace transmitting compression and shear, the load is transferred to the concrete through two components: tension and compression / shear. When using high-strength threaded steel for tensile pre-embedding and when using tail anchoring pre-embedding plates, the tensile and shear pre-embedding lengths are set according to the first preset value.

3. The standardized design method for bridge embedded parts according to claim 1, characterized in that, The process of designing the embedded parts involves setting multiple parameters specifically based on the tonnage value of the embedded parts, including: In the design of embedded parts, if the second embedded part structure with a tonnage value greater than the preset value needs to be constrained by both tension and shear boundaries, the tension and shear embedded parts are set separately. When using high-strength threaded steel for tensile pre-embedding and when using tail anchoring pre-embedding plates, the tensile and shear pre-embedding lengths are set according to the second preset value.

4. The standardized design method for bridge embedded parts according to claim 1, characterized in that, The process of setting multiple parameters specifically based on the tonnage value of the embedded part during the design process also includes: The bolt holes of the tensile type embedded seat are round holes, while the bolt holes of the shear type embedded seat are vertical oval holes. When the concrete internal threaded climbing cone is embedded, a positioning plate process is used to install it on the template.

5. A standardized design system for bridge embedded parts, employing the standardized design method for bridge embedded parts according to any one of claims 1-4, characterized in that, The system includes: The stress-deformation constraint module is used to obtain the first stress-deformation constraint value of the fine-rolled threaded steel bar in concrete and the second stress-deformation constraint value of the shear key in concrete; The embedded part design module is used to design embedded parts based on the first stress-deformation constraint value and the second stress-deformation constraint value. In the process of designing the embedded parts, multiple parameters are set specifically according to the tonnage of the embedded parts, and anti-corrosion treatment is carried out to complete the design of the embedded parts.

6. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the standardized design method for bridge embedded parts as described in any one of claims 1 to 4.

7. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the standardized design method for bridge embedded parts as described in any one of claims 1 to 4.

8. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the standardized design method for bridge embedded parts as described in any one of claims 1 to 4.

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