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Fabricated bridge construction method based on BIM

A bridge construction and assembly technology, which is applied in the direction of erecting/assembling bridges, bridges, bridge parts, etc., can solve problems such as high installation accuracy requirements, backward prefabrication technology, and inability to install prefabricated components, so as to improve accuracy and improve work efficiency and economic value, the effect of reducing waste

Active Publication Date: 2017-07-28
CHINA RAILWAY SHANGHAI ENGINEERING BUREAU GROUP CO LTD +1
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  • Application Information

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Problems solved by technology

However, the prefabrication accuracy of bridge piers, cover beams and other components, especially the installation accuracy of various embedded parts, is relatively high. During construction, prefabricated components cannot be installed due to insufficient installation accuracy of prefabricated components. The backward prefabrication technology is the cause The main reason for this phenomenon

Method used

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  • Fabricated bridge construction method based on BIM

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Embodiment Construction

[0019] The BIM-based prefabricated bridge construction method includes the following steps:

[0020] 1. According to the project design drawings and construction parameters, use the Revit modeling platform to establish the BIM unit models of the piers, tie girders, cover girders, box girders, internal components and steel bars of the prefabricated bridge, and assign time parameters to each unit model, see figure 1 .

[0021] 2. After the modeling of all unit models is completed, simulate the assembly process of the entire prefabricated bridge through 4D animation simulation. During the assembly simulation process, check whether there is any error in the position of the embedded parts when modeling the various parts of the prefabricated bridge, and simulate the assembly Whether there is any situation that cannot be installed during the process, and highlight the position where the BIM unit model has errors or cannot be installed, indicating that there is an error. Finally, revi...

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Abstract

The invention relates to a fabricated bridge construction method based on a BIM. The fabricated bridge construction method is characterized by comprising the following steps that according to project design drawings and construction parameters, through a Revit modeling platform, bridge piers, collar beams, cover beams, box beams, internal components and steel bar BIM unit models of a fabricated bridge are established, and meanwhile time parameters are given to all the unit models; and after modeling of all the unit models is completed, the assembly process of the whole fabricated bridge is subjected to analogue simulation through 4D animation, whether errors exist in the positions of pre-buried pieces or not in modeling of all parts of the fabricated bridge is verified in the assembly simulation process, highlighted marks are made, the project design drawings and the construction parameters are re-checked and amended according to simulation results, and an on-site construction drawing is rectified and determined in advance. Prefabricating and mounting accuracy of the fabricated bridge is remarkably improved, production cost is saved, meanwhile construction efficiency is improved, and the construction period is shortened.

Description

technical field [0001] The invention relates to the construction field, in particular to a BIM-based prefabricated bridge construction method. Background technique [0002] At present, prefabricated bridges are being applied in municipal projects in various cities, that is, the original cast-in-place bridge piers, tie beams, cover beams and other components are factory-prefabricated and installed on-site by cranes. This method can greatly improve the construction quality of concrete components such as bridge piers and cap beams, and accelerate the construction efficiency of the project. However, the prefabrication accuracy of bridge piers, cover beams and other components, especially the installation accuracy of various embedded parts, is relatively high. During construction, prefabricated components cannot be installed due to insufficient installation accuracy of prefabricated components. The backward prefabrication technology is the cause The main reason for this phenomen...

Claims

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Application Information

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IPC IPC(8): E01D21/00E01D19/00G06F17/50
CPCE01D19/00E01D21/00G06F30/13G06F30/20
Inventor 李昊梁金桥唐宏亮李泽鹏辛大权
Owner CHINA RAILWAY SHANGHAI ENGINEERING BUREAU GROUP CO LTD
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