建筑结构学报2017,Vol.38Issue(9):154-159,6.DOI:10.14006/j.jzjgxb.2017.09.018
混凝土受弯构件挠度控制可靠度分析
Reliability analysis on deflection control of concrete flexural members
摘要
Abstract
Deflection control is an important item in serviceability limit states design of concrete flexural members.Some reliability analyses and validation on deflection control of concrete flexural members have been taken,but the method taken in these jobs is unreasonable on theory,and the results are not comprehensive because reliability of deflection control is validated mostly based on individual special cases.In order to reveal the reliability of deflection control of concrete flexural members comprehensively and accurately,a systematic reliability analysis on deflection control of concrete flexural members in various cases was carried by using dimensionless form,and the major influence factors were analyzed.The results show that it is appropriate for reliability control of reinforced concrete flexural members and prestressed concrete flexural members required not to crack,but a little conservative for reliability control of prestressed concrete flexural members allowed to crack in the national standard GB 50153-2008,which can be adjusted appropriately.The relative value of the variable action effect has significant influence on the reliability of the deflection control of the members,and the higher the variable action effect is,the higher the reliability of the deflection control is.关键词
混凝土构件/挠度控制/可靠度/设计Key words
concrete member/deflection control/reliability/design分类
建筑与水利引用本文复制引用
姚继涛,刘伟,宋璨..混凝土受弯构件挠度控制可靠度分析[J].建筑结构学报,2017,38(9):154-159,6.基金项目
国家自然科学基金项目(51278401). (51278401)