连续焊接不锈钢屋面系统抗风揭性能研究  

RESEARCH ON WIND RESISTANCE OF CONTINUOUS WELDED STAINLESS STEEL ROOFING SYSTEM

作　　者：李浩 区彤 辛志勇[2,4] 汪大洋 张永山[1,2] LI Hao;OU Tong;XIN Zhiyong;WANG Dayang;ZHANG Yongshan(School of Civil Engineering, Guangzhou University, Gangzhou 510006, China;Building Metal Envelope Engineering Technology Research Center of Guangdong Province, Guangzhou 510006, China;Architectural Design and Research,Guangzhou 510006, China;Zhuhai Envete Engineering Testing Co., Ltd., Zhuhai 519000, China)

机构地区：[1]广州大学土木工程学院,广州510006 [2]广东省建筑金属围护系统工程技术研究中心,广州510006 [3]广东省建筑设计研究院,广州510006 [4]珠海安维特工程检测有限公司,广东珠海519000

出　　处：《钢结构（中英文）》2019年第8期21-26,36,共7页Steel Construction（Chinese & English）

基　　金：国家自然科学基金项目(51878191,51408140)

摘　　要：连续焊接不锈钢屋面系统具有良好的抗风性能,可以用作屋面金属围护系统。以连续焊接不锈钢屋面系统为研究对象,进行连续焊接不锈钢屋面系统抗风揭试验,基于ANSYS/Workbench有限元软件平台建立连续焊接不锈钢屋面模型,分析焊接不锈钢屋面系统的力学性能。结果表明:连续焊接不锈钢屋面系统在风荷载作用下屋面板拐角处和板中部的圆弧处应力较大。其中,屋面板拐角处在加载至4500N/m^2时达到屈服极限,焊缝在整个加载过程中并未屈服,板肋应力分布从上至下先增大后减小,屋面板最大变形14.32mm出现在板跨中圆弧附近,并朝两侧逐渐减小。The continuous welded stainless steel roofing system has good wind resistance and can be used as a roofing metal containment system. In the paper, the continuous welded stainless steel roofing system was taken as the research object. The continuous welding stainless steel roofing system was tested. The continuous welded stainless steel roofing model was established based on the ANSYS/ Workbench finite element software to analyze the mechanical properties of the welded stainless steel roofing system. The results showed that the continuous welded stainless steel roofing system had a large stress at the corner of the roof panel and the arc at the middle of the plate under the wind load. Among them, the corner of the roof panel reached the yield strength when loaded to 4 500 N/ m^2, and the weld did not yield during the entire loading process. The stress distribution of the ribs increased first and then decreased. The maximum deformation 14. 32 mm of the roof panel occurred near the arc of the mid-span of the slab, and it decreased from the center to the sides.

关 键 词：金属围护系统 连续焊接不锈钢 抗风揭试验 有限元软件 力学性能 

分 类 号：TU391[建筑科学—结构工程] TU352.2