Enhancement of Structural Recoverability With Frp Composites
The novel concept presented in this paper is the use of fibre reinforced polymers (FRP) to control the performance of new and existing reinforced concrete (RC) structures during and after moderate to strong earthquakes. This study was conducted in two major steps. First, a mechanical model for FRP-RC structure damage control is defined. Second, based on the proposed definition for controllable structures and using the post-yield stiffness and permanent deformations as seismic performance measures, the results of scaled tests of different structural elements are examined. For virgin beams, strengthening new RC beams or those with initial damage using hybrid FRP are presented, and the results of using wet bonding between FRP and concrete as a new technique for the construction of structures are briefly discussed. In addition, the effectiveness of FRP jacketing in existing non-ductile RC bridge columns with different deficiencies for quick recoverability after an earthquake is scrutinised using a large experimental database. Finally, to achieve a recoverable and more durable structure, the performance of steel bars wrapped with different types of FRP as reinforcement is highlighted.
Damage-control Secondary-stiflhess Irrecoverable deformations FRP Hybrid Beam Column
Zhishen Wu Mohamed F.M.Fahm Gang Wu
Urban &Civil Engineering Department, Ibaraki University Nakanarusawa- cho, Hitachi, 316-8511, Japan International Institute for Urban Systems Engineering, Southeast University, Nanjing, China, 210096
国际会议
The First Anniversary of Wenchuan Earthquake(纪念汶川地震一周年国际学术会议)
成都
英文
417-428
2009-05-10（万方平台首次上网日期，不代表论文的发表时间）