摘要
目前计算高层建筑的方法主要有GLF法、IWL法和LRC法,但在具体工程中如何选用合适的方法,常是困扰结构工程师的问题.首先基于计算原理阐述了3种方法的特点,然后以广州珠江新城303m高的利通广场为例,对比了3种方法得到的等效静力风荷载分布和等效基底力.研究表明,GLF法和IWL法得到的等效静力风荷载分布形式近似,顺风向IWL法的值较大,而扭转方向GLF的值较大,LRC法得到的等效风荷载分布与以上两者完全不同,荷载取值偏于保守.LRC法得到的等效基底力也比其他方法高出约20%.
The approaches of calculating equivalent static wind loads on high-rise buildings are GLF method,IWL method and LRC method. However, engineers are usually confused with how to choose a proper one for a real project. Characteristics of the three methods are firstly explained based on their principles, and equivalent static wind loads and base forces on Leatop Plaza are calculated and discussed. The results show that the IWL method produces similar distribution of equivalent static wind loads with the GLF method, higher load in along-wind direction and smaller value in torsion. LRC obtains different load distributions and more conservative values. Equivalent base forces gained by LRC are about 20% higher than the other two methods.
出处
《青岛理工大学学报》
CAS
2013年第4期16-22,共7页
Journal of Qingdao University of Technology
基金
国家自然科学基金资助项目(51208126)
广东省教育厅育苗工程项目(2012LYM_0107)
作者简介
黄友钦（1982-），男，福建宁德人．博士，助理研究员，主要从事结构抗风方面的研究．E-mail：yqhuang．dennis@gmail．com
