低层建筑抗风设计方法比较与研究

Comparison of Anti-breeze Design Methods for Low-rise Building

土木工程设计中,最有影响和最易引起工程结构失败甚至破坏的首推风荷载.最近几年风灾严重,尤其是风灾导致的低层建筑损失更是惨重.而国际上发达国家的风荷载规范则在不断变化之中,尤其是对轻型钢结构的抗风设计.因此本文有必要对各国低层轻型钢结构抗风设计方法进行研究.本文分别对中国、日本、美国等国家关于抗风设计方法进行比较,并针对风压系数计算一个实例,最后与风洞试验结果进行对照,对中国抗风设计方法进行研究与探讨.

In the design of the civil engineering,wind load is the first load influencing engineer structure and causing failure and the most.Wind damage has been serious in the last few years,especially to low layer buildings.But the wind load criterion in the developed countries varies continually,especially that of the anti-breeze design of light-weight steel structure.So it is necessary to study the anti-breeze design method of light-weight steel structure according to the conditions of every country.The related regulations of anti-breeze design method among China,Japan and USA was compared.Then,the anti-breeze design method of every country was used to calculate the breeze pressure coefficients of an example and compared with wind tunnel experiments to research and discuss the anti-breeze design method of China.