单层工业厂房地震反应的高振型影响

High-modal effect on earthquake response of one-storey industrial buildings

对国家标准（ＧＢＪ１１—８９）附表５．４吊车桥架引起的地震作用效应增大系数的计算原则和单层工业厂房排架柱高振型影响进行了讨论。指出该增大系数和吊车桥架质量有很强的相关胜，不考虑这种相关性会带来的较大误差；通过算例具体分析了排架柱高振型的影响，从动力特性和地震效应两方面说明平面排架计算的近似性。

In this paper the principle of calculate of seismic increasing coefficients in table 5. 4,in the appendix of reference [2], and high-modal effects on bent-columns of one-storeyindustrial buildings are discussed' That the coefficients are relavant with the mass ofcran bridge is pointed out and if the relativity is neglected, the error will be greater.By means of analysis of a example the high-modal effects are studied and the dynamicanalysis of plane bent is approximate to the spatial analysis are demonstrated.