Steel structure integral hoisting method based on BIM

Abstract

According to the present invention, a steel structure integral hoisting method based on BIM comprises: calculating member deflection by using BIM software, determining an arching degree of a single truss, checking member deflection in construction, comparing the member deflection in construction with a pre-arching degree, and comparing a deflection degree after loading that follows completion of construction with designed control deflection degree requirements; using an MIDAS finite element analysis plug-in to set hoisting points at intersection of an upper chord and a diagonal web member on the truss and on each truss, performing design calculations of lifting lugs, and analyzing displacement of structurally critical nodes; performing manual or automatic layout on the integral steel truss, steel tubes and steel cables in a venue model, performing integral analysis on the steel truss of the steel structure, calculating pre-stress of each node of the integral structure by using the BIM software; finally, virtually adding an environment and roads of a construction site by using the BIM software, completing stimulation of a whole erection process, determining the installation time and the situation of occupying construction roads of each steel truss, and estimating construction completion time. The present invention solves the construction problem of limited space, reduces the construction cost and shorten the construction period.

Description

technical field [0001] The invention is suitable for the overall installation and construction of large-scale prestressed and non-prestressed steel truss suspension structures. Background technique [0002] With the continuous development of science and technology, the shape and structural form of steel structures are becoming more and more complex, which brings new challenges to the design and construction of steel structures. For example, Olympic venues represented by "Bird's Nest" and "Water Cube", as well as influential steel structure projects such as the National Center for the Performing Arts, the site of the new CCTV station, the Guangzhou TV Tower, and the stupa of Famen Temple, have not only innovated and developed in design , At the same time, new achievements have been made in steel structure installation technology. Many mature and advanced technological methods have gradually become construction methods, which have played a role in promoting the development of...

AI Technical Summary

Problems solved by technology

In the process of simulating the tension, ensure that the layout and constraints of the structural support are consistent with the design model, and avoid the large deviation of the structural support due to cable tension; use BIM technology to solve the simulation of detailed design, fabrication, transportation and construction scheme Verification, complex node checking, prestress checking and many other issues have improved the quality and efficiency of the project, reduced costs, reduced waste and rework, and saved a lot of resources, overcoming many unfavorable factors in construction, and turning the steel structure engineering The implementation is truly efficient and controllable, meeting the refined requirements of project management, and laying the foundation for the use of BIM technology in more complex projects in the future

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