中文摘要：

针对现行规范对轻型门式刚架结构风荷载的取值没有考虑脉动风荷载空间相关性的情况,分别采用荷载响应相关法和国外风荷载规范求得门式刚架结构风荷载的分布和大小,基于与现行规范计算结果的对比分析,提出轻型门式刚架结构等效静力风荷载分布的估计方法.基于刚性模型同步测压风洞试验测得的门式体形模型表面风荷载时程数据,建立了轻型门式刚结构架有限元整体模型.通过按建议方法求出的风致响应与实际动力响应极值的对比,验证了建议的风荷载分布的合理性,计算结果表明采用该方法得到的风致响应更接近实际动力响应极值,且表达形式简洁,方便工程设计使用.

英文摘要：

The estimation of wind load on light-weight steel structure with gabled frames in the current code doesn＇t involve the spatial correlation of fluctuating wind load.The distribution and magnitude of wind load on light-weight steel structure with gabled frames are obtained with load response correlation （LRC） method according to international wind load codes and standards.Compared with the calculation results based on the current code,the estimation of equivalent static wind load on light-weight steel structure with gabled frames is proposed.Based on wind load time series obtained from the synchronous multi-pressure measurement on a rigid gable roof building model,a finite element model for light-weight steel structure with gabled frames is established.Calculation results show the wind load effects obtained by the proposed estimation method are much closer to the extreme values of dynamic time history analysis,and the expression is concise and practicable.