This paper proposes a damage assessment method for the standing seam metal roof system based on random wind loads.The method involves selecting three typical areas of a cross-section in a practical pro-ject for finite element(FE)analysis to determine the damage level of the roof system under the maximum basic wind pressure.Firstly,the performance level and quantitative indicators of the standing seam metal roof sys-tem are determined.Then MATLAB software is used to simulate fluctuating wind loads,and 11 wind speed time-history curves are randomly generated for each typical area and converted to wind pressure loads.Next,the FE model of the typical area is established using ABAQUS software,and wind pressure load is applied to perform a nonlinear dynamic time history analysis.Finally,the damage assessment is conducted.Upon com-paring the results,it is evident that the damage assessment method proposed in this paper is highly rational and can be effectively employed to evaluate the damage level of a standing seam metal roof system under var-ying wind pressure loads.
关键词
随机风/直立锁边屋面系统/损伤评估
Key words
Random wind/Standing seam metal roof system/Damage assessment
维普
万方数据