Fire Evaluation of RC Frames Strengthened with FRPs Using Finite Element Method

American journal of engineering and applied sciences

article

Reza Salehi¹  Abbas Akbarpour¹  Armaghan Shalbaftabar² 

[1] South Tehran Branch Islamic Azad University;North Carolina A&T State University, United States

关键词: Reinforced Concrete (RC) Frame;    Fire;    FRP Bars and Sheets;    Finite Element Method;   

DOI  :  10.3844/ajeassp.2020.610.626

学科分类：工程和技术（综合）

来源: Science Publications

【 摘 要 】

Reinforced Concrete (RC) structures may confront with extreme loading conditions. Sometimes, structures are not only under extreme loading such as earthquakes but also, they may be subjected to fire. Therefore, investigation of reinforced concrete structures which are the most common ones is essential. In this study, experimental RC frame is considered to validate in ABAQUS finite element software. RC frame is subjected to both earthquake and fire loading condition to assess the seismic behavior of structure under extreme conditions. FRP techniques is also consider evaluating the seismic behavior such as load capacity, ductility, energy absorption and stiffness. In this regard, two different approaches including reinforcing and wrapping are employed. In this research, the pattern of retrofitting and reinforcing are the novelty of this work. In fact, the effect of using steel bars, BFRP bars and sheets are evaluated. The new method for combination of steel-BFRP bars and different BFRP sheet’s angle as divergence and convergence are investigated. After carrying out the load-displacement diagrams, the seismic parameters of RC frames are compared and the optimized method and model is presented.

【 授权许可】

CC BY