TIME-DEPENDENT ANALYSIS OF REINFORCED CONCRETE THIN PLATE

摘要：

The reinforced concrete thin plate is sensitive to time-dependent deflection and stress redistribution between concrete and reinforcement due to creep and shrinkage which possibly lead to crack under the action of dead load. Based on the assumption of small deflection of plate and ageing-adjusted modulus method (AAMM), a time-dependent equilibrium equation on bending flexure of thin plate considering the effect of creep of concrete and restraint of reinforcement is established, which is used to obtain the Levy solution for rectangular thin plate simply supported with four sides. A numerical example is studied showing that creep and shrinkage of concrete enlarge the deflection and causes serious stress redistribution between concrete and reinforcement of thin plate while reinforcement makes a significant contribution on restraining the time-dependent effect.

关键词： reinforced concrete thin plate creep restraint of reinforcement

作者: Di Hu Yun-Xin Weng

作者单位: School of Architecture and Civil Engineering, Central South University, Changsha 410075, P.R. China

会议类型: 国际会议

会议名称: 2009年土木工程结构创新与可持续发展国际会议(The International Symposium on Innovation & Sustainability of Structures in Civil Engineering)

会议地点: 广州

会议语种:英文

页码: 1153-1159

在线出版日期: 2009-11-28（万方平台首次上网日期，不代表论文的发表时间）