BIM技术在大跨弦支梁屋盖施工中的应用研究

发布时间：2018-05-19 19:38

本文选题：BIM(建筑信息模型) + 弦支梁结构　；参考：《哈尔滨工程大学》2016年硕士论文

【摘要】：随着社会经济的快速发展,大跨度预应力钢结构越来越多的应用在体育场馆和会展中心等大型公共建筑中,然而其结构的大体量性及复杂性也给施工过程带来了新的问题及新的挑战。针对弦支梁结构安装张拉困难、变形控制难度大、施工管理过程可视化及信息化程度低等问题,本文以长沙国际会展中心项目为工程依托,将BIM技术引入弦支梁屋盖钢结构的施工过程中,对BIM技术在该工程结构施工中深化设计、仿真计算、拼装及张拉控制、施工过程管理等方面的应用做了具体研究。主要研究内容如下:(1)对BIM基础知识进行简单介绍,包括BIM的由来、特点、软件分类及其在施工阶段中的应用及作用价值等。(2)对BIM模型的建立及深化设计进行研究,主要包括BIM建模过程中的软件选择、建模规则制定、构件族库创建及模型拼装等,在此基础上通过节点细化及碰撞检查对模型进行深化设计,并最终出具构件及节点详图。(3)将BIM模型导入MIDAS/GEN有限元分析软件中,根据本项目施工方案,对结构施工过程的力学性能进行仿真分析,并根据位移、索力、撑杆垂度及柱顶侧移等计算结果对其施工方案的安全性及合理性进行评估。(4)基于三维扫描技术,结合BIM模型及施工过程仿真分析计算结果,对结构进行预拼装控制及现场拼装误差分析。在结构张拉完成后对弦支梁张拉起拱进行变形监测,并将监测结果分别与仿真模拟结果及传统全站仪监测数据进行误差对比分析。(5)基于BIM技术的高度可视化及信息化特征分别对结构施工过程中的虚拟施工管理、进度管理及成本管理等方面进行应用研究。研究结果表明:BIM技术在本项目弦支梁屋盖施工中的应用有效解决了结构施工过程中的难点及重点问题,对于保障结构施工安全、提高施工质量、降低施工成本等方面具有重要作用及意义,有利于高度可视化精益建造的实现。
[Abstract]:With the rapid development of social economy, long-span prestressed steel structures are more and more used in large public buildings such as gymnasiums and exhibition centers. However, the large volume and complexity of the structure also bring new problems and challenges to the construction process. In order to solve the problems such as difficult installation and tension of chord beam structure, difficulty of deformation control, low degree of visualization and information in construction management process, the project of Changsha International Convention and Exhibition Center is used as the engineering support in this paper. This paper introduces BIM technology into the construction process of steel structure with chord beam roof, and makes a concrete study on the application of BIM technology in the deep design, simulation calculation, assembly and tension control, construction process management and so on in the construction of the engineering structure. The main research contents are as follows: (1) A brief introduction to the basic knowledge of BIM, including the origin, characteristics, software classification, application and function value of BIM in the construction phase, etc.) the establishment and further design of BIM model are studied. It mainly includes software selection in BIM modeling process, modeling rule formulation, component family library creation and model assembly, etc. On this basis, the model is further designed through node refinement and collision checking. Finally, the BIM model is introduced into the MIDAS/GEN finite element analysis software. According to the construction plan of the project, the mechanical properties of the construction process are simulated and analyzed, and according to the displacement and cable force, the model is imported into the MIDAS/GEN finite element analysis software. The safety and reasonableness of the construction scheme are evaluated based on the calculation results of the sagging degree of the brace and the lateral displacement of the column top. (4) based on the three-dimensional scanning technology, combined with the BIM model and the results of the simulation analysis and calculation of the construction process, The control of pre-assembly and the error analysis of site assembly are carried out. The deformation monitoring of the tension arch of chord supported beam is carried out after the structure tension is completed. And the monitoring results are compared with the simulation results and the traditional total station monitoring data. (5) based on the high visualization and information characteristics of BIM technology, the virtual construction management in the construction process of the structure is carried out respectively. Progress management and cost management and other aspects of the application of research. The research results show that the application of BIM technology in the construction of chord beam roof of this project effectively solves the difficulties and key problems in the construction process of the structure, which can guarantee the construction safety of the structure and improve the construction quality. It is important to reduce the construction cost, which is beneficial to the realization of highly visualized lean construction.
【学位授予单位】：哈尔滨工程大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TU17;TU758.11

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