超长混凝土框架柱内力行波效应研究

详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文

英文篇名：Research on seismic responses of frame columns' interforce of concrete superlong structure considering traveling wave effect 中文刊名：四川建筑科学研究 英文刊名：Sichuan Building Science 作者：刘志强 ; 张新培 ; 葛军 英文作者：LIU Zhiqiang ; ZHANG Xinpei ; GE Jun(College of Civil and Environment Eng.Sichuan University ; Chengdu 610065 ; China) 中文关键词：混凝土超长框架 ; 柱弹性内力 ; 行波效应 英文关键词：superlong concrete structure ; elasticity interforce ; traveling wave effect 出版日期：2007-04-25 机构：四川大学建筑与环境学院,四川大学建筑与环境学院,四川大学建筑与环境学院 四川成都610065,四川成都610065,四川成都610065 年：2007 期：02 出版单位：四川建筑科学研究

摘要

利用ANSYS软件,并采用一致与非一致Taft波,对长度为105~210 m的3层混凝土框架作了大规模弹性时程分析。在此基础上,得到了柱弹性内力行波效应变化规律:最大内力出现时间后移;柱剪力随结构长度的增大而减小;柱弯矩随结构长度的增大其1,2层柱弯矩值会增大、3层柱弯矩值会减小;柱轴力随结构长度的增大,变化的幅度不超过1%;在200~500m/s波速范围内,波速改变对柱内力影响可忽略,变化幅度不超过2%。
With the help of ANSYS,the time history analysis for the behavors of a series of large models of three floors fram structure ranging from 105～210 meters,which are subjected to uniform and non-uniform excitation of TAFT has been done.Based on these analysises,the varying regulations of the fram columns' elastic interforces,considering travling wave effect,has been gained:the appearing times of the largest interforces are postponed;columns' shears decrease with the increasing of structure length;the columns' moments of the first and the second floor are enlarged,while the thirst floor' columns' are reduced as the same reason;columns' axial forces are nearly not changed,as the largest one is less than 1% with the change of length;the affact of speed' changing could be ignored,which is not more than 2%,with the scope of 200～500 m/s in this paper.

引文

[1]冯丽,顾渭建.高层建筑超长结构无缝设计裂缝控制的建筑与结构技术[J].哈尔滨建筑大学学报,2002,35(2):40-43.
    [2]葛军.钢筋混凝土超长结构地震行为行波效应研究[D].成都:四川大学,2004.
    [3]龚曙光,等.ANSYS工程应用实例解析[M].北京:机械工业出版社,2003.