大跨度異形鋼桁架安裝過程試驗研究及實時監(jiān)控
苗吉軍1,2,侯曉燕1,王典武1,劉延春1,白小軍2
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苗吉軍1,2,侯曉燕1,王典武1,劉延春1,白小軍2(1 青島理工大學(xué)土木工程學(xué)院, 青島 266033; 2 甘肅省建設(shè)投資(控股)集團總公司, 蘭州 730050)[摘要]大跨度空間結(jié)構(gòu)施工過程是一個因結(jié)構(gòu)體系未成型而引起的復(fù)雜變化過程。以甘肅省國際會展中心大跨度異形鋼桁架項目安裝過程為研究背景,通過ANSYS進行數(shù)值建模分析確定最優(yōu)吊裝方案,采用DH3819無線靜態(tài)應(yīng)變測試系統(tǒng)測試鋼桁架主要受力構(gòu)件的應(yīng)力\|應(yīng)變狀態(tài),利用自主編制的數(shù)值模擬軟件實現(xiàn)對大跨度異形鋼桁架安裝過程的聯(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。[關(guān)鍵詞]大跨度空間結(jié)構(gòu); 施工監(jiān)測; 數(shù)值分析; 計算機仿真中圖分類號:TU393.3文獻標識碼:A文章編號:1002848X(2013)06002206Experimental research and real\|time monitoring on construction process oflarge span deformed steel trussMiao Jijun1,2, Hou Xiaoyan1, Wang Dianwu1, Liu Yanchun1, Bai Xiaojun2(1 School of Civil Engineering, Qingdao Technological University, Qingdao 266033, China;2 Gansu Construction Investment (Holdings) Group Corporation, Lanzhou 730050, China)Abstract:The construction process of large span spatial steel truss is very complicated because of the unformed structural system with in\|time dependent. Based on numerical analysis of ANSYS, the optimal loading plan was determined for the large span spatial steel truss of Gansu Convention and Exhibition Center. Experiment on stress\|strain relationships was undertaken by equipment of data record with wireless system named DH3819 in the field for construction process of the large span spatial steel truss. The simulation software compiled by author was used to realize the on\|line controlof large span deformed steel truss installation process, which can provide an intuitive decision\|making tool for optimizing construction plan and guiding construction process management.Keywords:large span spatial structure; construction monitoring; numerical analysis; computer simulation*甘肅省建設(shè)投資(控股)集團總公司和甘肅省科學(xué)技術(shù)廳項目(090GKCA045)。作者簡介:苗吉軍,博士,教授,Email:msyu_990421@sina.com。參考文獻[1]董石麟.我國大跨度空間鋼結(jié)構(gòu)的發(fā)展與展望[J].空間結(jié)構(gòu), 2000, 6(2):3\|13.[2]CUO C, DANINEL A. Long\|span roof structures [J]. Modern Steel Construction, 1994, 34(5):46\|50.[3]GB 50017—2003 鋼結(jié)構(gòu)設(shè)計規(guī)范[S].北京:中國計劃出版社,2003.[4]吳曉涵.面向?qū)ο蠼Y(jié)構(gòu)分析程序設(shè)計[M]. 北京:科學(xué)出版社,2002.[5]苗吉軍,顧祥林.地震作用下砌體結(jié)構(gòu)倒塌反應(yīng)的數(shù)值模擬計算分析[J].土木工程學(xué)報,2005,38(9):45\|52.[6]顧祥林,孫飛飛.混凝土結(jié)構(gòu)的計算機仿真[M]. 上海: 同濟大學(xué)出版社, 2002.[7]杜風山,朱光明.OpenGL在可視化有限元圖形結(jié)果處理系統(tǒng)開發(fā)中的應(yīng)用[J].計算機輔助設(shè)計與圖形學(xué)報,2003,15(12):1554\|1557.