论文部分内容阅读
轮式起重机大多露天作业,所以必须计算风载荷。各国凤载荷的计算方法,基本形式为: W=c·q·F·k_z式中W—起重机所受风载荷,公斤C—结构物风载体形系数F—结构物或货物迎风面积,米~2 q—基本风压,公斤/米~2 k_z—风压高度变化系数在上式中“C”、“F”需通过风洞试验来求得,不会产生很大的差异,仅因试验条件及取值的精确程度不同而有所差别罢了,但由于各国地理环境不同,其q、k_z值的选取则相差
Most wheel cranes operate in the open air, so wind loads must be calculated. The calculation method of phoenix load in each country is as follows: W = c · q · F · k_z where W-crane wind load, kg C-structure wind load factor F-windward area of structure or cargo, 2 q- basic wind pressure, kg / m ~ 2 k_z- Variation coefficient of wind pressure height In the above formula, “C” and “F” need to be obtained through wind tunnel test, which will not cause much difference. Conditions and the exact value of different values Bale differences, but because of the different geographical environment, the q, k_z value of the choice of a difference