钢桁架通廊结构横向动力特性和安全度评定

LATERAL DYNAMIC CHARACTERISTICS AND SAFETY EVALUATION OF A CORRIDOR WITH STEEL TRUSSES

对某烧结车间高架斜通廊的动力特性进行了现场测试 ,分析了其产生横向摆动的原因 :结构横向自振周期与该场地土的特征周期很接近 ,产生在结构自振主频范围内的小幅横向摆动。

Field testings of the dynamic characteristics of an overhead steel truss inclined corridor for a sintering workshop were carried out and the causes of its lateral swing were also analyzed.The lateral swings of small amplitude occurred in the scope of the master frequency of the structure′s self\|oscillation due to the fact that the structure′s lateral self\|oscillation period is very close to the eigen period of in\|situ soil.Therefore the normal operations of the corridor can not be affected by the lateral swings.