- 摘 要
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（1 河海大學土木與交通學院, 南京 210098； 2 深圳市建筑設計研究總院有限公司, 深圳 518000;3 江蘇滬寧鋼機股份有限公司, 宜興 214231; 4 南京市建筑安裝工程質(zhì)量監(jiān)督站, 南京 210007）
［摘要］以建設中的江蘇大劇院音樂廳鋼屋蓋施工安裝為背景工程，根據(jù)鋼屋蓋對溫度作用的敏感程度不同，將其分為正殼與反殼兩個部分，采用有限元軟件MIDAS/Gen對正殼與反殼進行溫度效應分析，分析不同環(huán)境溫度下，施工合攏溫度的選取對結構最大應力及支座反力的影響。綜合結構最大應力與支座反力隨合攏溫度的變化曲線，確定音樂廳鋼屋蓋最佳施工合攏溫度為10～20℃，為鋼屋蓋現(xiàn)場施工合攏提供技術指導。將計算結果同實際監(jiān)測數(shù)據(jù)對比分析，驗證有限元計算模型及計算方法的正確性，為大型復雜建筑鋼結構工程施工合攏溫度研究提供參考。
［關鍵詞］江蘇大劇院； 大跨度鋼結構； 溫度作用； 合攏溫度； 施工模擬
中圖分類號：U391， TU758-11文獻標識碼：A文章編號：1002-848X(2018)23-0113-05
Study on temperature effect and construction closing temperature in steel roof of concert hall in Jiangsu Grand Theater
Li De1,2， Cao Pingzhou1， Lu Weiwei3， Fu Xinzhi3， Wu Wenping3， Li Changyu4
（1 College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China; 2 Shenzhen General Institute of Architectural Design and Research Co.， Ltd.， Shenzhen 518000, China;3 Jiangsu Huning Steel Mechanism Co.， Ltd.， Yixing 214231, China;4 Nanjing Engineering Quality Supervision Station of Construction and Installation, Nanjing 210007, China ）
Abstract:Based on the construction and installation of the steel roof of the concert hall of Jiangsu Grand Theatre under construction, according to the sensitivity of the steel roof to temperature, it is divided into two parts: the positive shell and the reverse shell. The finite element software MIDAS/Gen was used and the temperature effect analyses of the positive shell and the reverse shell were carried out to analyze the influence of the selection of the construction closing temperature on the maximum stress of the structure and the reaction force of the support under different ambient temperatures. The variation curves of the maximum stress of the integrated structure and the bearing reaction force with the closing temperature determine that the optimal construction closing temperature of the steel roof of the concert hall is 10～20 ℃, which provides technical guidance for the on-site construction of the steel roof. The calculation results were compared with the actual monitoring data to verify the correctness of the finite element calculation model and the calculation method, which provides reference for the study of the construction temperature of large complex building steel structure engineering.
Keywords:Jiangsu Grand Theater; large span steel structure; temperature effect; closing temperature; construction simulation
作者簡介：李德，碩士研究生，Email:lidejya2009@163.com。
