本文選題：空間鋼結(jié)構(gòu)　切入點：施工技術(shù)　出處：《合肥工業(yè)大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：近年來,隨著我國大跨度空間結(jié)構(gòu)的廣泛應(yīng)用,相應(yīng)的施工技術(shù)與方法也得到了快速發(fā)展與推廣。本文對現(xiàn)有大跨度空間結(jié)構(gòu)成熟的施工工藝進(jìn)行了調(diào)查和歸納。對其中主要的施工技術(shù)問題做了進(jìn)一步的分析探討,以求更為高效、科學(xué)、適用的施工方法得到借鑒,從而實現(xiàn)整個行業(yè)對于類似結(jié)構(gòu)施工技術(shù)水平的提升。本文以霍邱體育館屋蓋結(jié)構(gòu)工程建設(shè)項目為研究背景,闡述了大跨度空間結(jié)構(gòu)施工方案的優(yōu)選、施工全過程力學(xué)分析、施工監(jiān)控以及卸載施工等內(nèi)容。通過實際工程的建設(shè),驗證相應(yīng)施工方法、有限元分析及監(jiān)控系統(tǒng)的正確性與科學(xué)性。本文開展的相關(guān)力學(xué)分析與監(jiān)控研究,旨在形成大跨度空間鋼結(jié)構(gòu)施工與監(jiān)控的典型方案,為類似工程建設(shè)提供借鑒與參考。論文主要研究內(nèi)容如下:(1)屋蓋鋼結(jié)構(gòu)施工全過程施工方法的研究明確了鋼結(jié)構(gòu)屋蓋工程的研究背景、場地條件、結(jié)構(gòu)施工要求等內(nèi)容,并根據(jù)各類施工方案的可行性及經(jīng)濟(jì)適用性比較的結(jié)果,從而確認(rèn)了該工程全過程累積滑移施工方法。(2)屋蓋結(jié)構(gòu)施工全過程力學(xué)分析屋蓋結(jié)構(gòu)施工全過程由安裝階段和卸載階段兩大部分組成,文中采用MIDAS/Gen有限元軟件對施工過程每個工況進(jìn)行模擬分析,依據(jù)有限元分析結(jié)果,對累積滑移施工法和卸載法的安全性和可行性進(jìn)行了分析和討論。(3)屋蓋結(jié)構(gòu)施工全過程監(jiān)控系統(tǒng)的建立基于屋蓋結(jié)構(gòu)施工全過程有限元力學(xué)分析結(jié)果,綜合考慮結(jié)構(gòu)內(nèi)部桿件位置、類別的差異,對施工過程中關(guān)鍵構(gòu)件應(yīng)力和關(guān)鍵節(jié)點位移實施了監(jiān)測。詳細(xì)闡述了施工過程監(jiān)測系統(tǒng)的組成、測點布置和監(jiān)控系統(tǒng)的關(guān)鍵要點。(4)給出了施工過程屋蓋結(jié)構(gòu)應(yīng)力與位移的實測值與計算值對比分析文中對鋼結(jié)構(gòu)屋蓋施工過程中的關(guān)鍵構(gòu)件工作應(yīng)力和位移進(jìn)行了監(jiān)測,并將關(guān)鍵構(gòu)件工作應(yīng)力和位移的實測值與有限元理論計算值進(jìn)行了對比和分析。兩者結(jié)果吻合較好,表明本文中所采用的施工方法、力學(xué)分析和施工監(jiān)控方法的正確性和有效性。
[Abstract]:In recent years, with the wide application of large span spatial structures in China, The corresponding construction techniques and methods have also been rapidly developed and popularized. In this paper, the existing mature construction technology of long-span spatial structures is investigated and summarized. The main construction technical problems are further analyzed and discussed. In order to obtain more efficient, scientific and applicable construction methods for reference, so as to realize the upgrading of the construction technology level of similar structures in the whole industry. This paper takes the roof structure construction project of Huoqiu Gymnasium as the research background. This paper expounds the optimal selection of the construction scheme of the large span space structure, the mechanical analysis of the whole construction process, the construction monitoring and unloading construction, etc. The corresponding construction methods are verified through the construction of the actual project. The finite element analysis and monitoring system is correct and scientific. The related mechanical analysis and monitoring research carried out in this paper aims to form a typical scheme for the construction and monitoring of large-span spatial steel structures. The main contents of this paper are as follows: 1) the whole construction method of steel roof structure is studied. The research background, site conditions, construction requirements and so on of steel roof engineering are clarified. And according to the feasibility and economic applicability of various construction schemes, The mechanical analysis of the whole process of roof structure construction consists of two parts: installation stage and unloading stage. In this paper, MIDAS/Gen finite element software is used to simulate and analyze each working condition in the construction process, and according to the results of finite element analysis, The safety and feasibility of the cumulative slip construction method and the unloading method are analyzed and discussed. The establishment of the monitoring system for the whole construction process of the roof structure is based on the finite element mechanical analysis results of the whole construction process of the roof structure. Considering the position and category difference of the internal members of the structure, the stress and displacement of the key members in the construction process are monitored. The composition of the monitoring system for the construction process is described in detail. The key point of the measuring point arrangement and monitoring system. 4) the stress and displacement of the roof structure during construction are compared and analyzed. In this paper, the working stress and displacement of the key members in the construction process of steel structure roof are monitored. The measured values of the working stress and displacement of the key members are compared and analyzed with the calculated values of the finite element theory. The results agree well with each other, which indicates that the construction method used in this paper is very good. Correctness and effectiveness of mechanical analysis and construction monitoring methods.
【學(xué)位授予單位】：合肥工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TU758.11

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本文編號：1585336