Design method based on railway bridge standard library

Abstract

The application discloses a design method based on a railway bridge standard library, which comprises the following steps: establishing a beam library and a beam library index table; establishing a pier library and a pier library index table; establishing an abutment library and an abutment library index table; establishing a shallow foundation library and a shallow foundation library index table; establishing a pile foundation library and a pile foundation library index table; establishing a project design details library, indexing beams, piers and abutments and foundations, and describing the matching relationship therebetween; and completing the whole bridge design based on a hole span arrangement table. The application establishes databases of beams, piers, abutments, shallow foundations and pile foundations covering any speed and different railway design standards, indexes the beams, piers and abutments and foundations used by a project through project design details, and digitizes the relationship between the design environment and each other, so that the automatic and standardized design of the railway bridge is realized by using the hole span arrangement table. The application is not only suitable for long and large trunk railway projects, but also can be popularized to small and medium-sized projects such as highways, municipal projects and light rails.

Description

Technical Field

[0001] This invention belongs to the field of railway bridge engineering technology in the transportation industry, and specifically relates to a design method based on a railway bridge standard library. Background Technology

[0002] Standardized design facilitates factory production, assembly, mechanization, and intelligent manufacturing, and is the main design mode adopted for long bridges. With the continuous advancement of large-scale railway construction, the design workload of railway bridges is increasing year by year, and the design cycle is getting shorter and shorter. In particular, high-speed railway bridges account for 70% or more of the total, and the original pier-by-pier design mode has low standardization and low design efficiency, making it difficult to meet the requirements of large design workload, high quality, and short cycle.

[0003] In order to complete bridge design tasks with high quality and efficiency, there is an urgent need for a bridge design method that is easy to centrally control and manage, and can automatically design according to the unified requirements of the project first, and then make local adjustments according to special circumstances. Summary of the Invention

[0004] This invention is proposed to solve the problems existing in the prior art, and its purpose is to provide a design method based on a railway bridge standard library.

[0005] The technical solution of this invention is: a design method based on a railway bridge standard library, comprising the following steps:

[0006] A. Establish a beam library and a beam library index table.

[0007] Establish a beam library based on the beam's structural dimensions, beam weight, and quantity, and store the beams accordingly;

[0008] B. Establish a bridge pier database and a bridge pier database index table.

[0009] Establish a bridge pier database based on the pier structure dimensions, pier weight, and project quantity, and store the piers accordingly;

[0010] C. Establish a bridge abutment database and its index.

[0011] Establish and store bridge abutment databases based on their structural dimensions, weight, and quantity.

[0012] D. Establish a shallow foundation library and a shallow foundation library index table.

[0013] Shallow foundations include open-cut and caisson foundations. Piers and storage facilities are constructed according to the structural dimensions, foundation weight, and quantity of the open-cut and caisson foundations.

[0014] E. Establish a pile foundation library and a pile foundation library index table.

[0015] Establish and store pile foundation databases according to the dimensions of the pile cap structure, the diameter of the pile foundation, the number of piles, and the quantity of the project.

[0016] F. Establish a project design detail library, index the beams, piers, and foundations used, and describe the matching relationships between them.

[0017] The project design details library includes a design environment index table and a table showing the relationships between beams, piers, and foundations;

[0018] G. Based on the span arrangement table, complete the design of the entire bridge.

[0019] Calculate the pier and abutment mileage from the span arrangement table, search the project design details library, and complete the overall bridge design.

[0020] Furthermore, in step A, a beam library and a beam library index table are established. The index factors in the beam library index table are beam drawing number, beam drawing name, and span.

[0021] Furthermore, step B establishes the pier library and the pier library index table. The index factors in the pier library index table are pier drawing number, pier drawing name, pier description, main pier, side pier, fixed pier, main span, side span, seismic fortification intensity Ag, pier total height, characteristic period of seismic response spectrum Tg, straight line, and curve.

[0022] Furthermore, step C establishes the bridge abutment library and the bridge abutment library index table. The index factors of the bridge abutment library index table are the abutment drawing number, abutment drawing name, abutment description, beam span, and seismic fortification intensity Ag.

[0023] Furthermore, in step D, a shallow foundation library and a shallow foundation library index table are established. The index factors of the shallow foundation library index table are the shallow foundation name and the applicable pier / platform drawing name.

[0024] Furthermore, in step E, a pile foundation library and a pile foundation library index table are established. The index factors of the pile foundation library index table are the pile cap name and the applicable pier drawing name.

[0025] Furthermore, in step F, the design environment index table includes horizontal curves, vertical curves, line spacing, seismic fortification intensity, and geological conditions. The design environment index table is divided into design environment segments according to mileage to establish an index.

[0026] Furthermore, step F includes a table showing the relationships between beams, piers, and foundations, including the index relationships between beams, piers, foundations, and the design environment, as well as the interdependencies between beams, piers, and foundations.

[0027] Furthermore, step G, based on the span arrangement table, completes the full bridge design, the specific process of which is as follows:

[0028] First, calculate the pier and abutment mileage from the span arrangement table, then search the project design details library to obtain the overall bridge design environment.

[0029] Then, the beam type, pier type, abutment type, and foundation type are configured for each span, the corresponding database is searched, the data is imported, and the design of the entire bridge is completed.

[0030] Finally, when searching for the pier or abutment database by pier type or abutment type, it is necessary to substitute the actual design environment of each pier and abutment and search according to the pier database index table and the abutment database index table.

[0031] The beneficial effects of this invention are as follows:

[0032] This invention establishes a database covering beams, piers, abutments, shallow foundations, and pile foundations for any railway speed and different railway design standards. It indexes the beams, piers, and foundations used in the project through project design details, and digitizes their relationship with the design environment and each other. Ultimately, it realizes automated and standardized design of railway bridges using span arrangement tables.

[0033] This invention addresses the problem of low design efficiency in railway bridges in the transportation sector by providing a high-quality and efficient calculation method. This method is not only applicable to long-distance railway projects, but can also be extended to small and medium-sized projects such as highways, municipal works, and light rail. Attached Figure Description

[0034] Figure 1 This is a flowchart of the method of the present invention;

[0035] Figure 2 This is a schematic diagram of the dimensions of simply supported beams and continuous beams in this invention. Detailed Implementation

[0036] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0037] like Figures 1 to 2 As shown, a design method based on a railway bridge standard library includes the following steps:

[0038] A. Establish a beam library and a beam library index table.

[0039] Establish a beam library based on the beam's structural dimensions, beam weight, and quantity, and store the beams accordingly;

[0040] B. Establish a bridge pier database and a bridge pier database index table.

[0041] Establish a bridge pier database based on the pier structure dimensions, pier weight, and project quantity, and store the piers accordingly;

[0042] C. Establish a bridge abutment database and its index.

[0043] Establish and store bridge abutment databases based on their structural dimensions, weight, and quantity.

[0044] D. Establish a shallow foundation library and a shallow foundation library index table.

[0045] Shallow foundations include open-cut and caisson foundations. Piers and storage facilities are constructed according to the structural dimensions, foundation weight, and quantity of the open-cut and caisson foundations.

[0046] E. Establish a pile foundation library and a pile foundation library index table.

[0047] Establish and store pile foundation databases according to the dimensions of the pile cap structure, the diameter of the pile foundation, the number of piles, and the quantity of the project.

[0048] F. Establish a project design detail library, index the beams, piers, and foundations used, and describe the matching relationships between them.

[0049] The project design details library includes a design environment index table and a table showing the relationships between beams, piers, and foundations;

[0050] G. Based on the span arrangement table, complete the design of the entire bridge.

[0051] Calculate the pier and abutment mileage from the span arrangement table, search the project design details library, and complete the overall bridge design.

[0052] Step A: Establish the beam library and beam library index table. The index factors in the beam library index table are beam drawing number, beam drawing name, and span.

[0053] Step B establishes the pier library and the pier library index table. The index factors in the pier library index table are pier drawing number, pier drawing name, pier description, main pier, side pier, fixed pier, main span, side span, seismic fortification intensity Ag, pier total height, characteristic period of seismic response spectrum Tg, straight line, and curve.

[0054] Step C establishes the bridge abutment library and the bridge abutment library index table. The index factors of the bridge abutment library index table are the abutment drawing number, abutment drawing name, abutment description, beam span, and seismic fortification intensity Ag.

[0055] Step D establishes a shallow foundation library and a shallow foundation library index table. The index factors of the shallow foundation library index table are the shallow foundation name and the applicable pier / platform drawing name.

[0056] Step E establishes the pile foundation library and the pile foundation library index table. The index factors of the pile foundation library index table are the pile cap name and the applicable pier drawing name.

[0057] Step F involves creating an environment index table that includes horizontal curves, vertical curves, line spacing, seismic fortification intensity, and geological conditions. The design environment index table is divided into segments based on mileage to establish the index.

[0058] The relationship table of beams, piers, and foundations in step F includes the index relationship between beams, piers, foundations and the design environment, as well as the interdependence relationship between beams, piers, and foundations.

[0059] Step G, based on the span arrangement table, completes the full bridge design. The specific process is as follows:

[0060] First, calculate the pier and abutment mileage from the span arrangement table, then search the project design details library to obtain the overall bridge design environment.

[0061] Then, the beam type, pier type, abutment type, and foundation type are configured for each span, the corresponding database is searched, the data is imported, and the design of the entire bridge is completed.

[0062] Finally, when searching for the pier or abutment database by pier type or abutment type, it is necessary to substitute the actual design environment of each pier and abutment and search according to the pier database index table and the abutment database index table.

[0063] Specifically, the data in the beam library in step A includes: beam type, beam joint width, number of spans, beam bottom width, simply supported beam length, simply supported beam height, continuous beam side span straight section length, continuous beam side span curved section length, continuous beam middle span straight section length, continuous beam middle span curved section length, continuous beam side span height, continuous beam middle span height, distance from the edge of the simply supported beam to the center of the support, simply supported beam first-stage dead load reaction force, simply supported beam second-stage dead load reaction force, continuous beam side span edge to the center of the support, continuous beam side span first-stage dead load reaction force, continuous beam side span second-stage dead load reaction force, continuous beam middle span first-stage dead load reaction force, continuous beam middle span second-stage dead load reaction force.

[0064] The data in the beam library index table includes: beam drawing number, beam drawing name, and span.

[0065] For simply supported beams, the "span" is taken as the integer value of the beam length. For example, a simply supported beam with a beam length of 32.7m has a span of 32. For continuous beams, the "span" is taken as the sum of the integer values ​​of each span. For example, a three-span continuous beam with a beam length of 32.75m+48m+32.75m has a span of 32+48+32.

[0066] Specifically, in step B, the pier database consists of a pier body table, a pier cap table, and an index table. The data in the pier body table includes: pier height, longitudinal (transverse) length of pier top, longitudinal (transverse) length of pier bottom, lower body height, wall thickness, outer longitudinal (transverse) slope, inner longitudinal (transverse) slope, pier volume, and pier reinforcement. The data in the pier cap table includes: main span, side span, longitudinal width of pier top, whether the slope changes, pier cap height, support pad height, cap longitudinal width, pier eccentricity, unequal height difference, curve radius, pier height and width, pier cap volume, and reinforcement.

[0067] The index table contains the following data: pier drawing number, pier drawing name, pier description, main (side) pier, fixed pier, main span, side span, seismic fortification intensity Ag, pier total height, characteristic period of seismic response spectrum Tg, and straight (curved) line.

[0068] Among them, "main pier" refers to a pier with two spans of the same length, and this span value is entered in "main span". "side pier" refers to a pier with two spans of different lengths, and these two span values ​​are entered in "main span" and "side span" respectively. "fixed pier" refers to a pier with two fixed supports. "total pier height" is the total height of the pier body plus the top cap of the support plate. "straight (curved) line" indicates whether the pier is suitable for straight lines or curves.

[0069] Specifically, the data for the bridge abutment in step C includes: fill height, burial body, abutment dimensions, abutment volume and reinforcement, cap volume and reinforcement, support pad volume and reinforcement, and other ancillary facilities.

[0070] Other ancillary facilities include: sidewalk slabs, crash barriers, concrete behind the abutment, waterproof coating, ballast troughs, etc.

[0071] The data in the bridge abutment database index table includes: abutment drawing number, abutment drawing name, abutment description, beam span, and seismic fortification intensity Ag.

[0072] Specifically, the data in the shallow foundation library in step D includes: the total volume of the foundation and the reinforcement, the longitudinal width of each layer, the transverse width of each layer, and the thickness of each layer.

[0073] The data in the shallow foundation library index table includes: shallow foundation name and applicable pier / platform drawing name.

[0074] Specifically, the data in the pile foundation library in step E includes: pile cap volume and reinforcement, longitudinal width of each pile cap layer, transverse width of each pile cap layer, thickness of each pile cap layer, number of piles, X coordinate, Y coordinate, and pile diameter of each pile.

[0075] The data in the pier cap index table includes: pier cap name and applicable pier cap drawing name.

[0076] Specifically, the data in the design environment index table in step F includes: line spacing, horizontal curve, vertical curve, track type, track superelevation, seismic fortification intensity Ag, characteristic period of ground motion response spectrum Tg, site category, and frost depth line.

[0077] The data in the beam relationship table includes: beam drawing number, beam drawing name, beam category, span, beam name, beam type, and straight (curved) line.

[0078] The data in the pier-abutment relationship table includes: pier-abutment drawing number, pier-abutment drawing name, pier-abutment category, main beam drawing name, side beam drawing name, and total pier-abutment height.

[0079] The data in the basic relationship table includes: foundation type, foundation description, applicable pier drawing name, total pier height, number of piles, pile diameter, seismic fortification intensity Ag, straight (curved) line, and geological type.

[0080] Specifically, the data in the full bridge design table in step G includes: pier number, pier mileage, intersection distance, foundation type, geological type, straight (curved) line, seismic fortification intensity Ag, characteristic period of ground motion response spectrum Tg, beam drawing name, rail surface elevation, rail surface to beam top height, support + pad height, ground elevation, beam height on the left side of pier top, beam height on the right side of pier top, elevation on the left side of pier top, elevation on the right side of pier top, foundation top depth, total pier height, pier drawing number, pier drawing name, pier description, and foundation description.

[0081] The database contains index tables that implement indexing functionality.

[0082] Example 1

[0083] A certain super-large bridge has a total length of 534.75m and the span configuration is: 2×24m simply supported beams, 11×32m simply supported beams, and 1×(32+48+32m) continuous beam. Design this bridge.

[0084] A. Establish the beam library and index table, see Table 1 and Table 2. The definitions of parameters a1, a2...a5, h1, h2, h3 in the tables are as follows: Figure 2 .

[0085] Table 1 Beam Reservoir

[0086]

[0087] Table 2. Beam Library Index

[0088] 1 Sanqiao (2006) 2202 Double-track 32+48+32m continuous beam for speeds below 200 km / h 32+48+32 2 Tongqiao (2005) 2201-Ⅰ 32m simply supported T-beam for double track with a speed limit of 200 km / h 32 3 Tongqiao (2005) 2201-Ⅱ 200 km / h double-track 24m simply supported T-beam 24

[0089] B. Establish a pier database, which consists of a pier body table, a pier cap table, and an index table, as shown in Tables 3, 4, and 5, respectively. The tables are linked by pier index numbers. The pier body table and the pier cap table are not only linked by pier index numbers, but the "longitudinal dimension of pier top" and "longitudinal outer slope" in the pier body table must also correspond to the "vertical width of pier top" and "whether the slope changes" in the pier cap table. The "longitudinal outer slope" value must correspond to the "yes" value in "whether the slope changes".

[0090] Table 3 Pier Body Table

[0091]

[0092] Table 4. Tray Top Cap Table

[0093]

[0094] Table 5. Index of Dunku (Dunku)

[0095]

[0096] C. Establish a bridge abutment database and index table, see Table 6 and Table 7.

[0097] Table 6 Bridge Platform Reservoir

[0098]

[0099] Table 7 Bridge Abutment Index

[0100]

[0101] D. Establish a pile foundation library and index table, see Table 8 and Table 9.

[0102] Table 8 Pile Foundation Storage

[0103]

[0104]

[0105] Table 9. Pile Foundation Index

[0106] 1 Runway, 12.5×9.1×2, 12×1.25m Double-track T-shaped bridge abutment for speeds up to 200 km / h 2 Column, simple and solid, 4.2×8.6×2.0, 8×1m 200 km of ballast-supported double-track round-end solid piers 3 Simple and practical, 5×10.4×2.0, 8×1m 200 km of ballast-supported double-track round-end solid piers 4 48m low side, 7.1×10.4×2.5m, 10×1m 200km ballastless continuous beam double-track round-end solid piers 5 48 low-profile main structure, 8.8×12×2.5, 4.4×9.2×1, 12×1.25m 200km ballastless continuous beam double-track round-end solid piers 6 Column, simple and solid, 4.5×9.5×2, 8×1m 200 km of ballast-supported double-track round-end solid piers

[0107] E. Establish a project design details library, which includes a design environment index table and a table of beam, pier, and foundation relationships, as shown in Tables 10 and 11.

[0108] In Table 11-1, beams can be categorized by "Category" and referenced by category. In Table 11-2, multiple beam names can be entered in "Beam Drawing Name", separated by commas. "Pier Height" can be entered as a range: "(number)" means "Pier Height > number", "[number]" means "Pier Height ≥ number", "number)" means "Pier Height < number", and "number]" means "Pier Height ≤ number". Therefore, (20,50] means 20 < Pier Height ≤ 50. In Table 11-3, Ag is also entered as a range, with the same meaning as before. In "Straight (Curved) Line", "Straight" means it applies to straight lines, "Curved" means it applies to curves, and "All" means it applies to both straight lines and curves.

[0109] Table 10-1 Design Environment Index - Vertical Curve

[0110] mileage DK101+600.00 DK104+100.00 DK107+100.00 DK107+950.00 DK108+550.00 Rail surface elevation 30.8606 33.3606 15.3606 17.9599 15.8599 Curve radius (m) 20000 20000 20000 20000 20000

[0111] Table 10-2 Design Environment Index - Horizontal Curve

[0112] ZH Straight-Down Point Mileage DK100+829.55 DK104+489.86 DK116+511.00 DK122+800.75 HZ Straight-Ahead Mileage DK103+418.20 DK109+274.62 DK118+885.82 DK126+887.95 Radius of the circular curve (m) 10000 8000 8000 8500 Length of transition curve (m) 2588.65568 4784.76027 2374.81941 4087.20305

[0113] Table 10-3 Design Environment Index - Line Spacing

[0114] Line spacing (m) 4.4 4.42 4.4

[0115] Table 10-4 Design Environment Index - Seismic Fortification Intensity Ag

[0116] 0.05 DK140+000.00 DK152+500.00 0.1 DK108+000.00 DK140+000.00

[0117]

[0118] Table 10-5 Design Environment Index - Characteristic Period Zones of Seismic Response Spectrum

[0119] 1 0 550000

[0120] Table 10-6 Design Environment Index - Site Categories

[0121] 1 0 1 2 19400 104870 107530 122000 3 122000 127000 104870 107530

[0122] Table 11-1 Project Beam Selection Table

[0123]

[0124] Table 11-2 Project Selection of Piers and Abutments

[0125]

[0126] Table 11-3 Project Selection Basis Table

[0127]

[0128] F. Establish a span arrangement table and calculate the pier mileage, see Table 12. After inputting the "foundation type" and "geological type", search the project design details library, obtain the "straight (curved) line", "Ag", and "Tg" columns from the design environment index table (Table 10), search the project beam table (Table 11-1) to obtain the beam drawing name, calculate the pier height through elevation calculation, search the project pier table (Table 11-2) and project foundation table (Table 11-3) to complete the bridge design, see Table 13.

[0129] In the subsequent basic calculations, drawing, and engineering quantity calculations, data can be imported by indexing the beam, pier, abutment, and foundation libraries in the full bridge design table using the beam drawing name, pier drawing name, and foundation drawing name.

[0130] Table 12 Span Arrangement Table

[0131] Taiwei DK104+135.60 7.7 parapet DK104+143.30 32.75 1 DK104+176.05 32.7 2 DK104+208.75 32.7 3 DK104+241.45 32.7 4 DK104+274.15 32.7 5 DK104+306.85 32.7 6 DK104+339.55 48 7 DK104+387.55 32.7 8 DK104+420.25 32.7 9 DK104+452.95 32.7 10 DK104+485.65 32.7 11 DK104+518.35 32.7 12 DK104+551.05 24.7 13 DK104+575.75 24.7 14 DK104+600.45 32.7 15 DK104+633.15 32.7 parapet DK104+665.85 7.7 Taiwei DK104+673.55

[0132] Table 13-1 Full Bridge Design Table

[0133]

[0134]

[0135] Table 13-2 Full Bridge Design Table

[0136]

[0137] Table 13-3 Full Bridge Design Table

[0138]

[0139]

[0140] This invention establishes a database covering beams, piers, abutments, shallow foundations, and pile foundations for any railway speed and different railway design standards. It indexes the beams, piers, and foundations used in the project through project design details, and digitizes their relationship with the design environment and each other. Ultimately, it realizes automated and standardized design of railway bridges using span arrangement tables.

[0141] This invention addresses the problem of low design efficiency in railway bridges in the transportation sector by providing a high-quality and efficient calculation method. This method is not only applicable to long-distance railway projects, but can also be extended to small and medium-sized projects such as highways, municipal works, and light rail.

Claims

1. A design method based on a railway bridge standard library, characterized in that: Includes the following steps: (A) Establish a beam storage and beam storage index table Establish a beam library based on the beam's structural dimensions, beam weight, and quantity, and store the beams accordingly; (B) Establish a bridge pier database and a bridge pier database index table. Establish a bridge pier database based on the pier structure dimensions, pier weight, and project quantity, and store the piers accordingly; (C) Establish a bridge abutment database and a bridge abutment database index table. Establish and store bridge abutment databases based on their structural dimensions, weight, and quantity. (D) Establish shallow-based libraries and shallow-based library index tables. Shallow foundations include open-cut and caisson foundations. Piers and storage facilities are constructed according to the structural dimensions, foundation weight, and quantity of the open-cut and caisson foundations. (E) Establish a pile foundation library and a pile foundation library index table. Establish and store pile foundation databases according to the dimensions of the pile cap structure, the diameter of the pile foundation, the number of piles, and the quantity of the project. (F) Establish a project design detail library, index the beams, piers, and foundations used, and describe the matching relationships between them. The project design details library includes a design environment index table and a table showing the relationships between beams, piers, and foundations; (G) Based on the span arrangement table, complete the design of the entire bridge; Calculate the pier and abutment mileage from the span arrangement table, search the project design details library, and complete the overall bridge design; The data for the bridge abutment in step (C) includes: fill height, burial body, abutment dimensions, abutment volume and reinforcement, cap volume and reinforcement, support pad volume and reinforcement, and other ancillary facilities; Other ancillary facilities include: sidewalk slabs, crash barriers, concrete behind the abutment, waterproof coating, ballast troughs, etc. The data in the bridge abutment database index table includes: abutment drawing number, abutment drawing name, abutment description, beam span, and seismic fortification intensity Ag. The data in the shallow foundation library in step (D) includes: total foundation volume and reinforcement, longitudinal width of each layer, transverse width of each layer, and thickness of each layer; The data in the shallow foundation library index table includes: shallow foundation name and applicable pier / abutment drawing name; Step (G) involves completing the overall bridge design based on the span arrangement table. The specific process is as follows: First, calculate the pier and abutment mileage from the span arrangement table, then search the project design details library to obtain the overall bridge design environment. Then, the beam type, pier type, abutment type, and foundation type are configured for each span, the corresponding database is searched, the data is imported, and the design of the entire bridge is completed. Finally, when searching for the pier or abutment database by pier type or abutment type, it is necessary to substitute the actual design environment of each pier and abutment and search according to the pier database index table and abutment database index table. Step (G) includes the entire bridge design table, whose data are: pier number, pier mileage, intersection distance, foundation type, geological type, straight (curved) line, seismic fortification intensity Ag, characteristic period of seismic response spectrum Tg, beam drawing name, rail surface elevation, rail surface to beam top height, support + pad height, ground elevation, beam height on the left side of pier top, beam height on the right side of pier top, elevation on the left side of pier top, elevation on the right side of pier top, foundation top depth, total pier height, pier drawing number, pier drawing name, pier description, foundation description; (B) Establish a pier database, which consists of a pier body table, a pier top cap table, and an index table. The tables are linked by the pier index number. The pier body table and the pallet top cap table are not only linked by the pier index number, but the "longitudinal dimension of the pier top" and "longitudinal outer slope" of the pier body table must also correspond to the "longitudinal width of the pier top" and "whether the slope changes" of the pallet top cap table. The "longitudinal outer slope" has a value that corresponds to "yes" for "whether the slope changes". (F) Establish the span arrangement table, calculate the pier mileage, input the "foundation type" and "geological type", search the project design details library, obtain the "straight (curved) line", "Ag" and "Tg" columns from the design environment index table, search the project beam table to obtain the beam drawing name, obtain the pier full height through elevation calculation, search the project pier table and project foundation table to complete the full bridge design; In the subsequent basic calculations, drawing, and engineering quantity calculations, data can be imported by indexing the beam, pier, abutment, and foundation libraries in the full bridge design table using the beam drawing name, pier drawing name, and foundation drawing name.

2. The design method based on a railway bridge standard library according to claim 1, characterized in that: Step (A) Establish the beam library and the beam library index table. The index factors in the beam library index table are beam drawing number, beam drawing name, and span.

3. The design method based on a railway bridge standard library according to claim 1, characterized in that: Step (B) Establish the pier library and the pier library index table. The index factors in the pier library index table are pier drawing number, pier drawing name, pier description, main pier, side pier, fixed pier, main span, side span, seismic fortification intensity Ag, pier total height, characteristic period of seismic response spectrum Tg, straight line, and curve.

4. The design method based on a railway bridge standard library according to claim 1, characterized in that: Step (E) establishes the pile foundation library and the pile foundation library index table. The index factors of the pile foundation library index table are the pile cap name and the applicable pier drawing name.

5. The design method based on a railway bridge standard library according to claim 1, characterized in that: The design environment index table in step (F) includes horizontal curves, vertical curves, line spacing, seismic fortification intensity, and geological conditions. The design environment index table is divided into design environment segments according to mileage to establish an index.

6. The design method based on a railway bridge standard library according to claim 1, characterized in that: The relationship table of beams, piers and foundations in step (F) includes the index relationship between beams, piers and foundations and the design environment, as well as the interdependence relationship between beams, piers and foundations.

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