论文部分内容阅读
一、前言按弹性反应谱法确定地震荷载时,需求出建筑物的自振频率及其振型。单层锯齿形厂房在我国纺织工业中应用很广。这类厂房与一般机械工业厂房不同,常是10余跨至30余跨的跨变排架,所以动力特性计算比较复杂,常需用电子计算机进行。但亦可用手算。《建筑技术通讯·建筑结构》1980年第3期和1981年第5期曾发表过有关这类排架的抗震计算方法,但均限于当排架的各跨均相同和除边柱外内柱的刚度均相等的条件下才适用。本文从一般水平
I. INTRODUCTION When earthquake loads are determined by the elastic response spectrum method, the natural vibration frequency and vibration mode of the building are required. Single zigzag factory building is widely used in China’s textile industry. This kind of factory building is different from the general mechanical industrial factory building. It is often a span change rack with more than 10 spans to more than 30 spans. Therefore, the calculation of dynamic characteristics is relatively complex and often requires the use of a computer. However, it can be calculated by hand. Building Technologies Communications, Building Structure, 1980, Issue 3, and Issue 5, 1981, have published seismic calculation methods for these sorts of baffles, but they are all limited to the same frame and the inner and outer columns of the side columns. The stiffness is the same for all conditions. This article is from the general level