大跨度异型钢桁架安装过程计算机仿真分析
发布时间：2018-12-28 14:44
【摘要】：合理的施工方案和科学分析是保证结构安全的重要手段。空间结构以其受力合理、重量轻、造价低、形式活泼等诸多优点在世界范围内得到广泛应用的同时,随着体系越来越新颖、形式越来越复杂,跨度越来越大,对施工技术也提出了越来越高的要求。空间结构的施工过程是一个伴随结构形态和受力状态不断变化的动态过程,结构的最危险状态往往出现在施工过程中,传统的分析设计方法以使用阶段的结构作为研究对象,不考虑施工过程的影响,因此难以反映这一真实的受力特点。由于空间结构施工过程中影响受力因素众多且相互关联,使得对结构进行施工全过程分析具有较大的难度,目前在这方面的理论研究还比较零碎和缺乏系统化。 本文以甘肃省国际会展中心大跨度异型钢桁架项目为依托,进行了以下几方面的研究: 1)基于ANSYS数值分析的数据文件,采用面向对象程序设计的方法,以MFC应用程序框架和三维图形标准库OpenGL作为开发工具,编制了面向对象的Visual C++仿真软件,并通过特定的接口方式实现了人机交互式的高效率图形建模、计算模型的可视化检查、应力云图的三维可视化显示等等。 2)就甘肃省国际会展中心大跨度异型钢桁架项目,采用DH3819无线静态应变测试系统对钢桁架施工吊装过程进行了现场试验研究,测试了钢桁架主要受力构件的应力应变状态,为仿真软件提供了数据支持。 3)运用自主编制的面向对象的Visual C++仿真软件对整个实验过程的试验数据进行了实时显示,根据接收到的试验数据和数值分析结果的比较与判断,对钢桁架的整体吊装过程进行了全过程实时监控,确定了吊装过程中桁架主要受力杆件应力应变的变化范围,以确保吊装方案的可行性,避免构件的初始应力损伤,真正做到了联机控制,为优化施工方案和指导施工过程管理提供了直观的决策工具。
[Abstract]:Reasonable construction scheme and scientific analysis are important means to ensure structural safety. With the advantages of reasonable force, light weight, low cost, lively form and so on, the spatial structure has been widely used in the world. As the system becomes more and more novel, the form becomes more and more complex, and the span becomes larger and larger. The construction technology also put forward the higher and higher request. The construction process of spatial structure is a dynamic process which is accompanied by the continuous change of structure form and stress state. The most dangerous state of structure often appears in the construction process. The traditional analysis and design method takes the structure in use stage as the research object. The influence of construction process is not considered, so it is difficult to reflect this true stress characteristic. Due to the large number of factors affecting the construction of spatial structures and their correlation, it is difficult to analyze the whole construction process of the structures. At present, the theoretical research in this field is still relatively fragmented and lack of systematization. Based on the large span steel truss project of Gansu International Conference and Exhibition Center, this paper has carried out the following research: 1) based on the data file of ANSYS numerical analysis, the method of object-oriented programming is adopted. Based on the MFC application framework and the 3D graphics standard library (OpenGL), the object-oriented Visual C simulation software is developed, and the human-computer interactive high efficiency graphic modeling is realized through a specific interface. Visual inspection of computational models, three-dimensional visualization of stress cloud images, and so on. 2) for the large span steel truss project of Gansu International Conference and Exhibition Center, the construction and hoisting process of steel truss is studied by using DH3819 wireless static strain test system, and the stress and strain state of the main bearing members of steel truss is tested. It provides data support for simulation software. 3) the experiment data of the whole experiment process are displayed in real time by using the object-oriented Visual C simulation software, and the comparison and judgment between the received test data and the numerical analysis results are made. The whole process of hoisting of steel truss is monitored in real time, and the variation range of stress and strain of the main members of the truss is determined in order to ensure the feasibility of the hoisting scheme and avoid the initial stress damage of the members. The on-line control is realized, which provides an intuitionistic decision tool for optimizing the construction scheme and guiding the construction process management.
【学位授予单位】：青岛理工大学
【学位级别】：硕士
【学位授予年份】：2010
【分类号】：TU391
本文编号：2394088
[Abstract]:Reasonable construction scheme and scientific analysis are important means to ensure structural safety. With the advantages of reasonable force, light weight, low cost, lively form and so on, the spatial structure has been widely used in the world. As the system becomes more and more novel, the form becomes more and more complex, and the span becomes larger and larger. The construction technology also put forward the higher and higher request. The construction process of spatial structure is a dynamic process which is accompanied by the continuous change of structure form and stress state. The most dangerous state of structure often appears in the construction process. The traditional analysis and design method takes the structure in use stage as the research object. The influence of construction process is not considered, so it is difficult to reflect this true stress characteristic. Due to the large number of factors affecting the construction of spatial structures and their correlation, it is difficult to analyze the whole construction process of the structures. At present, the theoretical research in this field is still relatively fragmented and lack of systematization. Based on the large span steel truss project of Gansu International Conference and Exhibition Center, this paper has carried out the following research: 1) based on the data file of ANSYS numerical analysis, the method of object-oriented programming is adopted. Based on the MFC application framework and the 3D graphics standard library (OpenGL), the object-oriented Visual C simulation software is developed, and the human-computer interactive high efficiency graphic modeling is realized through a specific interface. Visual inspection of computational models, three-dimensional visualization of stress cloud images, and so on. 2) for the large span steel truss project of Gansu International Conference and Exhibition Center, the construction and hoisting process of steel truss is studied by using DH3819 wireless static strain test system, and the stress and strain state of the main bearing members of steel truss is tested. It provides data support for simulation software. 3) the experiment data of the whole experiment process are displayed in real time by using the object-oriented Visual C simulation software, and the comparison and judgment between the received test data and the numerical analysis results are made. The whole process of hoisting of steel truss is monitored in real time, and the variation range of stress and strain of the main members of the truss is determined in order to ensure the feasibility of the hoisting scheme and avoid the initial stress damage of the members. The on-line control is realized, which provides an intuitionistic decision tool for optimizing the construction scheme and guiding the construction process management.
【学位授予单位】：青岛理工大学
【学位级别】：硕士
【学位授予年份】：2010
【分类号】：TU391
【引证文献】
相关硕士学位论文 前1条
1 樊敏;门式桁架的结构设计及有限元仿真分析[D];西安电子科技大学;2013年
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