【摘要】：合理的施工方案和科學(xué)分析是保證結(jié)構(gòu)安全的重要手段�？臻g結(jié)構(gòu)以其受力合理、重量輕、造價低、形式活潑等諸多優(yōu)點在世界范圍內(nèi)得到廣泛應(yīng)用的同時,隨著體系越來越新穎、形式越來越復(fù)雜,跨度越來越大,對施工技術(shù)也提出了越來越高的要求。空間結(jié)構(gòu)的施工過程是一個伴隨結(jié)構(gòu)形態(tài)和受力狀態(tài)不斷變化的動態(tài)過程,結(jié)構(gòu)的最危險狀態(tài)往往出現(xiàn)在施工過程中,傳統(tǒng)的分析設(shè)計方法以使用階段的結(jié)構(gòu)作為研究對象,不考慮施工過程的影響,因此難以反映這一真實的受力特點。由于空間結(jié)構(gòu)施工過程中影響受力因素眾多且相互關(guān)聯(lián),使得對結(jié)構(gòu)進(jìn)行施工全過程分析具有較大的難度,目前在這方面的理論研究還比較零碎和缺乏系統(tǒng)化。 本文以甘肅省國際會展中心大跨度異型鋼桁架項目為依托,進(jìn)行了以下幾方面的研究: 1)基于ANSYS數(shù)值分析的數(shù)據(jù)文件,采用面向?qū)ο蟪绦蛟O(shè)計的方法,以MFC應(yīng)用程序框架和三維圖形標(biāo)準(zhǔn)庫OpenGL作為開發(fā)工具,編制了面向?qū)ο蟮腣isual C++仿真軟件,并通過特定的接口方式實現(xiàn)了人機交互式的高效率圖形建模、計算模型的可視化檢查、應(yīng)力云圖的三維可視化顯示等等。 2)就甘肅省國際會展中心大跨度異型鋼桁架項目,采用DH3819無線靜態(tài)應(yīng)變測試系統(tǒng)對鋼桁架施工吊裝過程進(jìn)行了現(xiàn)場試驗研究,測試了鋼桁架主要受力構(gòu)件的應(yīng)力應(yīng)變狀態(tài),為仿真軟件提供了數(shù)據(jù)支持。 3)運用自主編制的面向?qū)ο蟮腣isual C++仿真軟件對整個實驗過程的試驗數(shù)據(jù)進(jìn)行了實時顯示,根據(jù)接收到的試驗數(shù)據(jù)和數(shù)值分析結(jié)果的比較與判斷,對鋼桁架的整體吊裝過程進(jìn)行了全過程實時監(jiān)控,確定了吊裝過程中桁架主要受力桿件應(yīng)力應(yīng)變的變化范圍,以確保吊裝方案的可行性,避免構(gòu)件的初始應(yīng)力損傷,真正做到了聯(lián)機控制,為優(yōu)化施工方案和指導(dǎo)施工過程管理提供了直觀的決策工具。
[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.
【學(xué)位授予單位】：青島理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2010
【分類號】：TU391

【引證文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前1條

1 樊敏;門式桁架的結(jié)構(gòu)設(shè)計及有限元仿真分析[D];西安電子科技大學(xué);2013年

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本文編號：2394088