中美规范关于SCR钢支架风荷载计算的比较

Comparison of wind load calculation of SCR steel support in Chinese and American codes

在SCR钢支架设计中,风荷载计算十分重要。随着我国国际贸易不断发展,涉外SCR项目越来越多,对比分析国内外规范中风荷载计算方法至关重要。列出中美规范风荷载计算公式,阐述中美规范风荷载计算式中基本风速、地形与高度、体型系数、风振效应的区别。以某工程为例,分别按中美规范计算SCR钢支架风荷载、水平反力、柱顶位移,总结中美规范的差异,为涉外工程设计人员提供参考。

The calculation of wind load is very important in the design of SCR steel support. With the continuous development of international trade,there are more and more foreign-related SCR projects,so it is very important to compare and analyze the calculation methods of wind load at home and abroad codes. This paper lists the calculation formulas of wind load in the Chinese and American codes,and describes the differences of basic wind speed,terrain and height,shape coefficient,and wind vibration effect in the calculation formulas. Taking a project as an example,wind load,horizontal reaction force and column top displacement of SCR steel support are calculated according to the Chinese and American codes respectively,and the differences between the Chinese and American codes are summarized to provide reference for foreign-related engineering designers.