基于台风过程的低矮建筑屋面损伤研究

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关键词低矮建筑，风致损伤，台风过程，蒙特卡洛模拟，风洞试验中图分类号： 文献标志码：A DOI： 10.15935/j.cnki.jggcs.202503.0009

AbstractIn order to consider the impacts of wind speed and direction on building damages during the typhoon course，a common low-rise building in coastal areas was taken as the research object. This paper combined the probability distribution of wind extreme pressure coefficient on the roof obtained from a wind tunnel test and the typhoons generated bythe Yan Meng wind field model to propose aresearch method on the damage to roof of low-rise buildingssubjected to typhoons based on Monte Carlo simulation，and the changes of roof damage during the typhoon courses were investigated.Based on this method，the damage of different roofs considering the impacts of wind speed and direction were analyzed and the results were compared with the damage at the time of typhoon extreme wind speed.The results show that there is a linear relationship between the damage duration and the typhoon duration.The maximum damages are often inconsistent with the damages at the time of extreme wind speed.The method which analyzes the damage under a certain wind speed will underestimate the degree of roof damage，with an average error of about 20% .In some simulations，the error can even reach 60%

Keywordslow-rise building，wind-induced damage，typhoon course，Monte Carlo simulation，wind tunnel test

0 引言

我国是受台风灾害影响最为严重的国家之一[1]，影响我国的仅在西太平洋生成的台风每年约有7个，其中低矮建筑结构的损毁造成的损失超过总损失的半数以上[2]。（剩余17396字）