(1 青岛理工大学土木工程学院， 青岛 266033；2 青岛国际机场集团有限公司， 青岛 266108)

［摘要］以青岛胶东国际机场T1航站楼的连续焊接不锈钢金属屋面系统为研究对象，对其子结构模型试件进行了9次高、低温循环试验，并对屋面板、固定支座进行了应力实测，对屋面板的表面位移增量进行了实测。同时基于ABAQUS/Standard模块对该模型试件进行顺序耦合热应力分析，重点研究了屋面板和固定支座在极端加载温度作用下的变形与受力性能。结果表明：屋面板和固定支座未产生明显变形现象，固定支座与下部构造之间及各层钢板之间均未出现自攻螺钉的松脱现象；随着温度循环次数的递增，不同循环下相同加载温度点的实测值数据波动较小，表现为较为稳定的趋势，模型试件耐候性能良好。通过数值模拟结果与试验结果的对比，验证了模型结构模拟分析的正确性和适应性。 

［关键词］金属屋面系统；连续焊接不锈钢；温度循环；温度应力；表面位移增量 

中图分类号：TU393-3 文献标识码：A文章编号：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

*青岛新机场课题集成开发及航站楼钢结构安全监测评估项目(B2-2018-0179)。

 作者简介：任建，硕士，Email：1121813950@qq.com;  通信作者：苗吉军，博士，教授，博士生导师，Email:msyu_990421@sina.com。