某筒-柱支承式钢筋混凝土圆形筒仓结构动力特性研究

英文篇名：Analysis of Dynamic Characteristics for Cylinder Reinforced Concrete Silo Supported by Columns-cylinder
中文刊名：西华大学学报(自然科学版)
英文刊名：Journal of Xihua University(Natural Science Edition)
作者：蒋华 ; 谢海舰 ; 张薇
英文作者：JIANG Hua ; XIE Hai-jian ; ZHANG Wei(School of Architecture and civil Engineering ; Xihua University ; Chengdu 610039 China)
中文关键词：混凝土筒仓 ; 筒–柱支承 ; 动力特性 ; 数值分析
英文关键词：concrete silo ; supported by columns-cylinder ; dynamic characteristic ; numerical analysis
出版日期：2012-01-30
机构：西华大学建筑与土木工程学院;
年：2012
期：01
出版单位：西华大学学报(自然科学版)

摘要

以都江堰某筒–柱支承式钢筋混凝土圆形筒仓结构为例,对筒–柱支承式混凝土筒仓动力特性进行分析。研究表明:筒–柱支承式筒仓的底部筒–柱结构的开口削弱程度介于柱承式和筒承式之间,其侧移刚度与动力特性也介于二者之间,在频率较低时其运动状态体现为平动为主,达到一定频率时体现为扭转为主。研究结果可作为筒–柱支承式混凝土筒仓动力分析与工程实际应用的参考和借鉴。
The tube column supporting type reinforced concrete circular silo structure in Dujiangyan is taken as an example for the analysis of dynamic characteristics of tube-column supporting type concrete silos.The research indicates that the silo supported by columns-cylinder is weakened,and the weakening degree is between that of the silo supported by columns and silo supported by cylinder.Therefore,its stiffness and dynamic characteristics are between that of them.And its movement state is mainly horizontal when the natural frequency is lower while its movement state is mainly twisting when the natural frequency is higher.The conclusion can be used as a reference for seismic response analysis and application in engineering.

引文

[1]中华人民共和国建设部.GB50077—2003钢筋混凝土筒仓设计规范[S].北京:中国计划出版社,2004.
    [2]BROWN C J,NIELSEN J.Silos:Fundamentals of Theory,Be-haviour and Design[M].London:E&FN Spon,1998.
    [3]王命平,李玉川,刘伟.带仓顶室筒承式筒仓的自振周期及地震作用计算[J].振动与冲击,2007,26(8):5-8.
    [4]赵衍刚,江近仁.筒仓结构的自振特性与地震反应分析[J].地震工程与工程振动,1989,9(3):55-64.
    [5]程瑜.钢筋混凝土立筒仓结构抗震分析[D].河南工业大学:建筑与土木工程学院,2010.