A BIM design method for continuous beam bridge deck system considering catenary column foundation

Abstract

The present invention discloses a BIM design method for a continuous beam bridge deck system that takes into account the catenary column foundation. The method comprises the following steps: classifying the bridge deck system and creating a database of bridge deck system cross-sectional dimensions; creating a function library for modeling bridge deck system cross-sectional curve groups; parsing the BIM model information of the continuous beam main beam to generate the overall longitudinal layout range of the bridge deck system; parsing the catenary column foundation layout information to generate a structure array of the bridge deck system sub-section mileage range; and instantiating various types of bridge deck system sub-components within the bridge deck system sub-section mileage range to complete the bridge deck system BIM design. The present invention implements BIM design of a continuous beam bridge deck system that takes into account the catenary column foundation. By decomposing the cross-sectional information of different types of bridge deck system sub-components and segmenting the longitudinal sections of the common sections and the catenary column foundation sections, the BIM design of a complex bridge deck system is finally completed based on the longitudinal and transverse data, significantly improving the informationization level of bridge engineering and having significant promotion and application value.

Description

Technical Field

[0001] The present invention belongs to the field of building technology, and in particular relates to a BIM design method for a continuous beam bridge deck system taking into account a contact network column foundation. Background Art

[0002] Building Information Modeling (BIM) is a new tool in architecture, engineering, and civil engineering. BIM (Building Information Modeling) is defined as a building or construction engineering information model that contains complete and sufficient information to support lifecycle management and can be directly interpreted by computer applications. In short, it is the lifecycle management of the built environment supported by digital technology.

[0003] In the BIM design of bridge projects, the BIM design of the bridge deck system is crucial. Furthermore, in the context of information-based infrastructure construction management and intelligent operation and maintenance management, the results of bridge deck BIM design can also provide information models for the construction and operation and maintenance phases. Bridge decks are divided into simply supported beam decks and continuous beam decks based on the type of main structure to which they are attached. The former is arranged along a straight line, with only one catenary column per simply supported beam, making BIM design relatively simple. However, the latter is arranged along a curve, and the layout of the single-sided catenary column depends on the actual design situation, making BIM design more difficult. Therefore, to complete the BIM design of the continuous beam bridge deck system, it is necessary to simultaneously consider the distribution of the longitudinal catenary column foundation sections and the non-catenary column foundation sections, as well as the topological composition of various transverse substructures. A BIM design method for continuous beam bridge decks arranged along spatial curves should be developed to promote the development of BIM technology in bridge projects. Summary of the Invention

[0004] The present invention is proposed to solve the problems existing in the prior art, and its purpose is to provide a BIM design method for a continuous beam bridge deck system taking into account the contact network column foundation.

[0005] The technical solution of the present invention is: a BIM design method for a continuous beam bridge deck system considering the contact network column foundation, comprising the following steps:

[0006] A. Classify the bridge deck system and create a database of bridge deck cross-sectional dimensions;

[0007] B. Create a modeling function library for the bridge deck cross-section curve group;

[0008] C. Analyze the BIM model information of the continuous beam main girder to generate the overall longitudinal layout range of the bridge deck system;

[0009] D. Analyze the contact network column foundation layout information and generate the bridge deck sub-section mileage range structure array;

[0010] E. Instantiate various bridge deck system components within the mileage range of the bridge deck system section to complete the BIM design of the bridge deck system.

[0011] Furthermore, in step A, the bridge deck system is classified. The specific process is as follows:

[0012] First, the cross section of the continuous beam bridge deck is divided into two parts: the cross section at the catenary column foundation position and the cross section at the non-catenary column foundation position;

[0013] Then, four closed curve groups are used to express the cross section of the non-contact network column foundation position. The four closed curve groups represent the four types of bridge deck substructures: protective wall, vertical wall, shield, and cover.

[0014] Then, five closed curve groups are used to express the cross-section of the catenary column foundation position. The five closed curve groups represent the five types of bridge deck substructures: protective wall, vertical wall, shield, cover plate, and catenary column foundation.

[0015] Finally, the continuous beam bridge deck system is divided into different types according to the different arrangements of the bridge deck substructures.

[0016] Furthermore, in step A, a database of bridge deck cross-sectional dimensions is created. The specific process is as follows:

[0017] First, for each type of continuous beam bridge deck system, the key dimension parameters of the cross section at the location of the catenary column foundation and the location of the non-catenary column foundation are identified;

[0018] Then, multiple numerical combinations are assigned to the key cross-sectional dimension parameters of different types of continuous beam bridge deck systems to form a bridge deck system cross-sectional dimension database.

[0019] Furthermore, in step B, a function library for modeling the bridge deck cross-section curve group is created. The specific process is as follows:

[0020] First, for each type of continuous beam bridge deck system, a modeling function is created;

[0021] Then, the modeling function takes the key cross-sectional dimensions of the bridge deck system as input and generates nine closed curve groups according to the geometric topological construction characteristics of various bridge deck system substructures;

[0022] Finally, each closed curve in the closed curve group includes a longitudinal position attribute and a transverse position attribute.

[0023] Furthermore, step C analyzes the BIM model information of the continuous beam main girder to generate the overall longitudinal layout range of the bridge deck system. The specific process is as follows:

[0024] First, when the main structure of a continuous beam is composed of a BIM model object, the start mileage and end mileage attribute values ​​of the current continuous beam are extracted from the above BIM model object;

[0025] Then, when the main structure of a continuous beam is composed of several segment BIM model objects, the start and end mileage attribute values ​​are extracted from the first and last segment BIM model objects at the same time, and the minimum and maximum values ​​are filtered out as the start and end mileages of the current continuous beam;

[0026] Finally, the above starting mileage and ending mileage are used as the overall longitudinal layout range of the bridge deck system.

[0027] Furthermore, the bridge deck system sub-section mileage range in step D consists of two parts: the contact network column foundation sub-section mileage range and the non-contact network column foundation sub-section mileage range.

[0028] Furthermore, in step D, for the mileage range of the contact network column foundation sub-section, the specific process is as follows:

[0029] First, the starting mileage of the longitudinal general layout range of the bridge deck system generated in step C is used as input;

[0030] Then, according to the longitudinal distance of each catenary column foundation relative to the starting end of the continuous beam and taking into account the longitudinal length of the catenary column foundation, the longitudinal starting mileage and ending mileage of each catenary column foundation are calculated;

[0031] Then, the above process is repeated for all contact network column foundations;

[0032] Finally, a structure array of the mileage range of all contact network column foundation sub-sections is formed.

[0033] Furthermore, in step D, for the mileage range of the non-contact network column foundation sub-section, the specific process is as follows:

[0034] First, the starting and ending mileages of the longitudinal general layout range of the bridge deck system generated in step C are used as input;

[0035] Then, deduct the mileage range of all catenary column foundation subsections to obtain the mileage range of all non-catenary column foundation subsections;

[0036] Finally, the number of non-contact network column foundation subsections is one more than the number of contact network column foundation subsections.

[0037] Furthermore, in step E, various bridge deck sub-components are instantiated within the mileage range of the bridge deck sub-section to complete the bridge deck BIM design. The specific process is as follows:

[0038] First, a bridge deck type is selected, and an array of cross-sectional dimension values ​​matching the current bridge deck type is selected from the bridge deck cross-sectional dimension database created in step A;

[0039] Then, extract a curve group modeling function that matches the current bridge deck system type from the bridge deck cross-section curve group modeling function library created in step B, input the selected dimension value array into the extracted curve group modeling function, and generate a closed curve group;

[0040] Finally, various bridge deck system sub-components are instantiated within the mileage range of the contact network column foundation sub-section and the non-contact network column foundation sub-section generated in step D to complete the BIM design of the bridge deck system.

[0041] The beneficial effects of the present invention are as follows:

[0042] During the BIM design process of a continuous beam bridge deck system, the present invention classifies the bridge deck system, creates a bridge deck system cross-sectional dimension database, creates a bridge deck system cross-sectional curve group modeling function library, parses the BIM model information of the continuous beam main beam, generates the longitudinal overall layout range of the bridge deck system, parses the contact network column foundation layout information, generates a bridge deck system sub-section mileage range structure array, instantiates various bridge deck system sub-components within the bridge deck system sub-section mileage range, and completes the bridge deck system BIM design.

[0043] The present invention realizes the BIM design of the continuous beam bridge deck system taking into account the contact network column foundation. By decomposing the cross-sectional information of different types of sub-components of the bridge deck system and dividing the longitudinal sections of the ordinary section and the contact network column foundation section, the BIM design of the complex bridge deck system is finally completed according to the longitudinal and transverse data, which greatly improves the information level of bridge engineering and has obvious promotion and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a flow chart of the method of the present invention. DETAILED DESCRIPTION

[0045] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and embodiments:

[0046] like Figure 1 As shown, a BIM design method for a continuous beam bridge deck system considering the catenary column foundation includes the following steps:

[0047] A. Classify the bridge deck system and create a database of bridge deck cross-sectional dimensions;

[0048] B. Create a modeling function library for the bridge deck cross-section curve group;

[0049] C. Analyze the BIM model information of the continuous beam main girder to generate the overall longitudinal layout range of the bridge deck system;

[0050] D. Analyze the contact network column foundation layout information and generate the bridge deck sub-section mileage range structure array;

[0051] E. Instantiate various bridge deck system components within the mileage range of the bridge deck system section to complete the BIM design of the bridge deck system.

[0052] In step A, the bridge deck system is classified. The specific process is as follows:

[0053] First, the cross section of the continuous beam bridge deck is divided into two parts: the cross section at the catenary column foundation position and the cross section at the non-catenary column foundation position;

[0054] Then, four closed curve groups are used to express the cross section of the non-contact network column foundation position. The four closed curve groups represent the four types of bridge deck substructures: protective wall, vertical wall, shield, and cover.

[0055] Then, five closed curve groups are used to express the cross-section of the catenary column foundation position. The five closed curve groups represent the five types of bridge deck substructures: protective wall, vertical wall, shield, cover plate, and catenary column foundation.

[0056] Finally, the continuous beam bridge deck system is divided into different types according to the different arrangements of the bridge deck substructures.

[0057] In step A, a database of bridge deck cross-section dimensions is created. The specific process is as follows:

[0058] First, for each type of continuous beam bridge deck system, the key dimension parameters of the cross section at the location of the catenary column foundation and the location of the non-catenary column foundation are identified;

[0059] Then, multiple numerical combinations are assigned to the key cross-sectional dimension parameters of different types of continuous beam bridge deck systems to form a bridge deck system cross-sectional dimension database.

[0060] Step B creates a modeling function library for the bridge deck cross-section curve group. The specific process is as follows:

[0061] First, for each type of continuous beam bridge deck system, a modeling function is created;

[0062] Then, the modeling function takes the key cross-sectional dimensions of the bridge deck system as input and generates nine closed curve groups according to the geometric topological construction characteristics of various bridge deck system substructures;

[0063] Finally, each closed curve in the closed curve group includes a longitudinal position attribute and a transverse position attribute.

[0064] Step C analyzes the BIM model information of the continuous beam main girder to generate the overall longitudinal layout range of the bridge deck system. The specific process is as follows:

[0065] First, when the main structure of a continuous beam is composed of a BIM model object, the start mileage and end mileage attribute values ​​of the current continuous beam are extracted from the above BIM model object;

[0066] Then, when the main structure of a continuous beam is composed of several segment BIM model objects, the start and end mileage attribute values ​​are extracted from the first and last segment BIM model objects at the same time, and the minimum and maximum values ​​are filtered out as the start and end mileages of the current continuous beam;

[0067] Finally, the above starting mileage and ending mileage are used as the overall longitudinal layout range of the bridge deck system.

[0068] In step D, the mileage range of the bridge deck system sub-section consists of two parts: the mileage range of the contact network column foundation sub-section and the mileage range of the non-contact network column foundation sub-section.

[0069] In step D, for the mileage range of the contact network column foundation sub-section, the specific process is as follows:

[0070] First, the starting mileage of the longitudinal general layout range of the bridge deck system generated in step C is used as input;

[0071] Then, according to the longitudinal distance of each catenary column foundation relative to the starting end of the continuous beam and taking into account the longitudinal length of the catenary column foundation, the longitudinal starting mileage and ending mileage of each catenary column foundation are calculated;

[0072] Then, the above process is repeated for all contact network column foundations;

[0073] Finally, a structure array of the mileage range of all contact network column foundation sub-sections is formed.

[0074] In step D, for the mileage range of the non-contact network column foundation sub-section, the specific process is as follows:

[0075] First, the starting and ending mileages of the longitudinal general layout range of the bridge deck system generated in step C are used as input;

[0076] Then, deduct the mileage range of all catenary column foundation subsections to obtain the mileage range of all non-catenary column foundation subsections;

[0077] Finally, the number of non-contact network column foundation subsections is one more than the number of contact network column foundation subsections.

[0078] Step E: Instantiate various bridge deck sub-components within the bridge deck sub-section mileage range to complete the bridge deck BIM design. The specific process is as follows:

[0079] First, a bridge deck type is selected, and an array of cross-sectional dimension values ​​matching the current bridge deck type is selected from the bridge deck cross-sectional dimension database created in step A;

[0080] Then, extract a curve group modeling function that matches the current bridge deck system type from the bridge deck cross-section curve group modeling function library created in step B, input the selected dimension value array into the extracted curve group modeling function, and generate a closed curve group;

[0081] Finally, various bridge deck system sub-components are instantiated within the mileage range of the contact network column foundation sub-section and the non-contact network column foundation sub-section generated in step D to complete the BIM design of the bridge deck system.

[0082] Specifically, in step A, a closed curve group consists of closed curves whose number ranges from 0 to infinity.

[0083] Specifically, in step A, whether for the cross-section of the contact network column foundation position or the cross-section of the non-contact network column foundation position, if the topological relationship between the closed curve groups of different types of bridge deck substructures changes, or the geometric topology of the closed curve group of a certain type of bridge deck substructure itself changes, the bridge deck system will be divided into different types.

[0084] Specifically, the longitudinal position attribute in step B is used to distinguish whether the current closed curve is located at the contact network column foundation position or the non-contact network column foundation position; the transverse position attribute is used to distinguish whether the current closed curve belongs to the five types of substructures: protective wall, vertical wall, shield, cover, and contact network column foundation.

[0085] Specifically, step E completes the BIM modeling of the bridge deck system through a two-layer loop. The specific process is as follows:

[0086] First, the first loop is performed within the closed curve group. For each closed curve, the longitudinal position attribute value is extracted to determine whether it should be arranged in the contact network column foundation section or the non-contact network column foundation section. The transverse position attribute value is also extracted to determine the type of the current sub-component.

[0087] Then, the second loop is performed within the sub-section mileage range structure array. For each structure, the closed curve obtained by the first loop is stretched along the spatial line within this mileage range to obtain a sub-component BIM model.

[0088] Finally, at the end of the two-layer cycle, the BIM modeling of all types of sub-components of the bridge deck system is completed.

[0089] During the BIM design process of a continuous beam bridge deck system, the present invention classifies the bridge deck system, creates a bridge deck system cross-sectional dimension database, creates a bridge deck system cross-sectional curve group modeling function library, parses the BIM model information of the continuous beam main beam, generates the longitudinal overall layout range of the bridge deck system, parses the contact network column foundation layout information, generates a bridge deck system sub-section mileage range structure array, instantiates various bridge deck system sub-components within the bridge deck system sub-section mileage range, and completes the bridge deck system BIM design.

[0090] The present invention realizes the BIM design of the continuous beam bridge deck system taking into account the contact network column foundation. By decomposing the cross-sectional information of different types of sub-components of the bridge deck system and dividing the longitudinal sections of the ordinary section and the contact network column foundation section, the BIM design of the complex bridge deck system is finally completed according to the longitudinal and transverse data, which greatly improves the information level of bridge engineering and has obvious promotion and application value.

Claims

1. A BIM design method for a continuous beam bridge deck system considering the catenary column foundation, characterized by: The following steps are involved: A. Classify the bridge deck system and create a database of bridge deck cross-sectional dimensions; B. Create a modeling function library for the bridge deck cross-section curve group; C. Analyze the BIM model information of the continuous beam main girder to generate the overall longitudinal layout range of the bridge deck system; D. Analyze the contact network column foundation layout information and generate the bridge deck sub-section mileage range structure array; E. Instantiate various bridge deck sub-components within the mileage range of the bridge deck sub-section to complete the bridge deck system BIM design; In step A, the bridge deck system is classified. The specific process is as follows: First, the cross section of the continuous beam bridge deck is divided into two parts: the cross section at the catenary column foundation position and the cross section at the non-catenary column foundation position; Then, four closed curve groups are used to express the cross section of the non-contact network column foundation position. The four closed curve groups represent the four types of bridge deck substructures: protective wall, vertical wall, shield, and cover. Then, five closed curve groups are used to express the cross-section of the catenary column foundation position. The five closed curve groups represent the five types of bridge deck substructures: protective wall, vertical wall, shield, cover plate, and catenary column foundation. Finally, the continuous beam bridge deck system is divided into different types according to the different arrangements of the bridge deck substructures; In step A, a database of bridge deck cross-section dimensions is created. The specific process is as follows: First, for each type of continuous beam bridge deck system, the key dimension parameters of the cross section at the location of the catenary column foundation and the location of the non-catenary column foundation are identified; Then, multiple numerical combinations are assigned to the key cross-sectional dimension parameters of different types of continuous beam bridge deck systems to form a bridge deck system cross-sectional dimension database.

2. The BIM design method for a continuous beam bridge deck system considering the catenary column foundation according to claim 1 is characterized by: Step B creates a modeling function library for the bridge deck cross-section curve group. The specific process is as follows: First, for each type of continuous beam bridge deck system, a modeling function is created; Then, the modeling function takes the key cross-sectional dimensions of the bridge deck system as input and generates nine closed curve groups according to the geometric topological construction characteristics of various bridge deck system substructures; Finally, each closed curve in the closed curve group includes a longitudinal position attribute and a transverse position attribute.

3. The BIM design method for a continuous beam bridge deck system considering catenary column foundations according to claim 1 is characterized by: Step C analyzes the BIM model information of the continuous beam main girder to generate the overall longitudinal layout range of the bridge deck system. The specific process is as follows: First, when the main structure of a continuous beam is composed of a BIM model object, the start mileage and end mileage attribute values ​​of the current continuous beam are extracted from the above BIM model object; Then, when the main structure of a continuous beam is composed of several segment BIM model objects, the start and end mileage attribute values ​​are extracted from the first and last segment BIM model objects at the same time, and the minimum and maximum values ​​are filtered out as the start and end mileages of the current continuous beam; Finally, the above starting mileage and ending mileage are used as the overall longitudinal layout range of the bridge deck system.

4. The BIM design method for a continuous beam bridge deck system considering catenary column foundations according to claim 1 is characterized by: In step D, the mileage range of the bridge deck system sub-section consists of two parts: the mileage range of the contact network column foundation sub-section and the mileage range of the non-contact network column foundation sub-section.

5. The BIM design method for a continuous beam bridge deck system considering the catenary column foundation according to claim 4 is characterized by: In step D, for the mileage range of the contact network column foundation sub-section, the specific process is as follows: First, the starting mileage of the longitudinal general layout range of the bridge deck system generated in step C is used as input; Then, according to the longitudinal distance of each catenary column foundation relative to the starting end of the continuous beam and taking into account the longitudinal length of the catenary column foundation, the longitudinal starting mileage and ending mileage of each catenary column foundation are calculated; Then, the above process is repeated for all contact network column foundations; Finally, a structure array of the mileage range of all contact network column foundation sub-sections is formed.

6. The BIM design method for a continuous beam bridge deck system considering the catenary column foundation according to claim 5 is characterized by: In step D, for the mileage range of the non-contact network column foundation sub-section, the specific process is as follows: First, the starting and ending mileages of the longitudinal general layout range of the bridge deck system generated in step C are used as input; Then, deduct the mileage range of all catenary column foundation subsections to obtain the mileage range of all non-catenary column foundation subsections; Finally, the number of non-contact network column foundation subsections is one more than the number of contact network column foundation subsections.

7. The BIM design method for a continuous beam bridge deck system considering catenary column foundations according to claim 1 is characterized by: Step E: Instantiate various bridge deck sub-components within the bridge deck sub-section mileage range to complete the bridge deck BIM design. The specific process is as follows: First, a bridge deck type is selected, and an array of cross-sectional dimension values ​​matching the current bridge deck type is selected from the bridge deck cross-sectional dimension database created in step A; Then, extract a curve group modeling function that matches the current bridge deck system type from the bridge deck cross-section curve group modeling function library created in step B, input the selected dimension value array into the extracted curve group modeling function, and generate a closed curve group; Finally, various bridge deck system sub-components are instantiated within the mileage range of the contact network column foundation sub-section and the non-contact network column foundation sub-section generated in step D to complete the BIM design of the bridge deck system.

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