DEFORMATION AND STRESS REDISTRIBUTION OF SRC COLUMNS UNDER LONG-TERM AXIAL COMPRESSION

摘要：

Based on the ACT 209 method for predicting the creep and shrinkage of concrete, a study is conducted using age-adjusted effective modulus method to evaluate the deformation and stress redistribution of the long-term axially loaded steel reinforced concrete (SRC) columns. The analysis indicates that the deformation and stress redistribution caused by the creep and shrinkage develop quickly in the early loading phase, and reaches almost constant after about one year. The stress redistribution usually leads to remarkable increase of the steel stress in the column. Hence much attention should be paid to the long-term loading effect in design practice. In addition, the parameter study shows that the age of concrete at first loading and the loading magnitude have much effect on the long-term behavior of SRC columns.

作者: Zhouyi Chen Yang Wang Wei Chen

作者单位: School of Architecture and Civil Engineering Xiamen University,Xiamen University,Xiamen 361005,P.R.China

会议类型: 国际会议

会议名称: The International Symposium on Innovation & Sustainability of Structures in Civil Engineering(2011年土木工程结构创新与可持续发展国际会议)

会议地点: 厦门

会议语种:英文

页码: 715-720

在线出版日期: 2011-10-28（万方平台首次上网日期，不代表论文的发表时间）