钢筋混凝土高烟囱的震害预测方法  

A METHOD OF SEISMIC DAMAGE PREDICTION OF HIGH RC CHIMNEYS

作　　者：张令心[1] 江近仁[1] 

机构地区：[1]国家地震局工程力学研究所

出　　处：《世界地震工程》1995年第3期27-32,共6页World Earthquake Engineering

摘　　要：本文提出钢筋混凝土高烟囱的一个震害预测方法,用钢筋混凝土弯曲构件的延性指数作为破坏指标。烟囱的内力考虑了水平地霞弯矩、竖向地震轴力和自重轴力以及p—Δ效应引起的地震附加弯矩。烟囱的抗力由归一化的极限弯曲应力和极限轴向应力的关系包线确定。This paper presents a method of seismic damage, prediction of high reinforced concrete chimneys. Seismic damage to chimneys is evaluated by damage index in terms of the ductility index in flexural member of reinforced concrete. The forces of chimney considered under the earthquake load are horizontal seismic moment, axial force caused by vertical seismic load and self-weight and additional moment caused by p - A effect. The chimney resistance is determined by the envelope of ultimate resistance which is plotted in non-dimensional form as versus

关 键 词：震害预测 烟囱 延性指数 钢筋混凝土 

分 类 号：TU233[建筑科学—建筑设计及理论]