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(1 青島理工大學土木工程學院， 青島 266033；2 青島國際機場集團有限公司， 青島 266108)
［摘要］以青島膠東國際機場T1航站樓的連續(xù)焊接不銹鋼金屬屋面系統(tǒng)為研究對象，對其子結構模型試件進行了9次高、低溫循環(huán)試驗，并對屋面板、固定支座進行了應力實測，對屋面板的表面位移增量進行了實測。同時基于ABAQUS/Standard模塊對該模型試件進行順序耦合熱應力分析，重點研究了屋面板和固定支座在極端加載溫度作用下的變形與受力性能。結果表明：屋面板和固定支座未產(chǎn)生明顯變形現(xiàn)象，固定支座與下部構造之間及各層鋼板之間均未出現(xiàn)自攻螺釘?shù)乃擅摤F(xiàn)象；隨著溫度循環(huán)次數(shù)的遞增，不同循環(huán)下相同加載溫度點的實測值數(shù)據(jù)波動較小，表現(xiàn)為較為穩(wěn)定的趨勢，模型試件耐候性能良好。通過數(shù)值模擬結果與試驗結果的對比，驗證了模型結構模擬分析的正確性和適應性。
［關鍵詞］金屬屋面系統(tǒng)；連續(xù)焊接不銹鋼；溫度循環(huán)；溫度應力；表面位移增量
中圖分類號：TU393-3 文獻標識碼：A文章編號：1002-848X(2021)18-0062-07
Experimental research and theoretical analysis on working performance for continuous welded stainless steel metal roofing system subject to temperature cycling
REN Jian1, MIAO Jijun1, LI Jian1, WANG Fulai2
(1 School of Civil Engineering, Qingdao University of Technology, Qingdao 266033， China；2 Qingdao International Airport Group Co., Ltd., Qingdao 266108， China)
Abstract: Taking the continuous welded stainless steel metal roofing system of T1 terminal of Qingdao Jiaodong International Airport as the research object, 9 high and low temperature cycle experiments were performed on the model specimen of its substructure, and the stresses of the roof panels and fixed bearings were measured. The surface displacement increment of the roof panel was measured. At the same time, based on the ABAQUS/Standard module, the sequential coupling thermal stress analysis of the model specimen was carried out, and the deformation and force performance of the roof panel and the fixed support under the action of extreme loading temperature were mainly studied. The results show that roof panels and fixed support have no obvious deformation, and there is no loosening of self tapping screws between the fixed support and the substructure or between the steel plates of each layer. With the increase of the number of temperature cycles, the fluctuation of the measured value data at the same loading temperature point under different cycles is smaller, showing a relatively stable trend, and the model specimens have good weather resistance. The comparison between the numerical simulation results and the test results verifies the correctness and adaptability of the simulation analysis of the model structure.
Keywords:metal roofing system； continuous welded stainless steel； temperature cycle； temperature stress; surface displacement increment
*青島新機場課題集成開發(fā)及航站樓鋼結構安全監(jiān)測評估項目(B2-2018-0179)。
作者簡介：任建，碩士，Email：1121813950@qq.com; 通信作者：苗吉軍，博士，教授，博士生導師，Email:msyu_990421@sina.com。
