摘要
在钢 -混结构经受强地震时 ,由于两种材料强度不同而引起结构刚度偏心 ,由于结构强度偏心 ,使得结构某一部分先进入塑性状态 ,出现刚度偏心 ,从而导致产生扭转振动 ;若结构本身存在偏心 ,当结构刚度大的部分先进入塑性状态则有利 ,当刚度小的部分先进入塑性状态则不利。本文对产生强度偏心的原因进行了分析 ,对强度偏心的影响进行探讨。
When strong earthquake happens,although eccentricity in stiffness distribution does not exist in the steel-concrete construction,a localized change in the distribution of strength after plastification has commenced.It can cause a torsional mode of vibration.If eccentricity in stiffness distribution exists in the building,it is advantageous that the strong part of buiding yields earlier,and it is disadvantageous that the poor part yields earlier.This parper explains the reasons and consequences of the eccentricity in strength distribution.
出处
《低温建筑技术》
2002年第4期24-26,共3页
Low Temperature Architecture Technology
关键词
钢-混凝土结构
地震
刚度偏心
强度偏心
扭转
耦联
塑性
高层建筑
Steel-concrete structure
earthquake
eccentricity in stiffness distribution
eccentricity in strength distribution
torsion
coupled response
plastic
