中美房屋建筑风荷载计算对比分析

Wind load comparison of building structure design between U.S.&China Codes

美国标准对于房屋建筑风荷载的计算和分析,与中国标准存在一定的差异,设计人员在初步接触时,很难把握美标风荷载设计的思路和要点。通过对中美标准的对比,分析了两者在风荷载组合、水平位移限值、风压的计算、体型系数和风振效应等方面的异同。通过对风荷载计算过程中各参数的对比,旨在比较中美标准风荷载设计的差异,了解美标风荷载计算的全过程,大致得出美标与中标计算结果的比例,在初步设计估算和施工图设计过程中为广大设计人员提供参考。

The calculation and analysis of wind loads on buildings in U.S.Codes are somewhat different from China Codes.It is difficult for designers to grasp the ideas and key points of wind load design in U.S.codes during initial contact.By comparing China and U.S.codes,this article analyzes the similarities and differences between the two codes in terms of wind load combinations,horizontal displacement limits,wind pressure calculations,shape factoras,and wind vibration effects.By comparing various parameters in the wind load calculation process,this article aims to compare the differences of wind load design,understand the entire process of wind load calculation according to the U.S.codes,and roughly obtain the ratio of calculation results between the U.S.codes and China codes.And provide reference for designers during the preliminary design estimation and detail design process.