Load Carrying Capacity and Ductility of Cfrp-Reinforced Earthquake Waste Filled Circular Steel Tube Columns

摘要：

In order to significantly increase not only the load carrying capacity but also the ductility of the steel tube columns filled with recycled aggregate concrete from the earthquake waste,two different strengthening methods by using externally bonded of carbon fibre reinforced polymer(CFRP)to strengthened the columns was proposed.Composite columns of CFRP reinforced and steel circular steel tube columns are studied in this study.The aims were to study the contribution of the CFRP sheets applied in enhancing the load carrying capacity and ductility of the steel tube columns with different concrete type,normal concrete and recycled aggregate concrete.The results demonstrate that the ultimate load carrying capacity and ductility of the steel tube columns filled with recycled aggregate concrete can be increased satisfactorily by full wrapping and partial wrapping arrangement of CFRP sheets. Moreover,stiffness of the columns strengthened was also increased greatly due to the restraining effect offered by CFRP and the full wrapping arrangement is better than the partial wrapping arrangement in enhancing the stiffness and the load carrying capacity.

关键词： Load carrying capacity ductility circular steel tube columns CFRP

作者: Dong He Jiangfeng Dong Shucheng Yuan Qingyuan Wang

作者单位: School of Architecture and Environment,Sichuan University,Chengdu 610065,China

会议类型: 国际会议

会议名称: 2012 2nd International Conference on Advanced Material Research(2012 第二届先进材料研究国际会议 ICAMR2012)

会议地点: 成都

会议语种:英文

页码: 234-238

在线出版日期: 2012-01-07（万方平台首次上网日期，不代表论文的发表时间）