1. Post-fire seismic performance of SRC beam to SRC column frames
- Author
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Dong-Ming Zhang, Jie Xu, Guang-Yong Wang, and Chao Zhang
- Subjects
Fire test ,Materials science ,Deformation (mechanics) ,business.industry ,0211 other engineering and technologies ,Phase (waves) ,Stiffness ,020101 civil engineering ,02 engineering and technology ,Building and Construction ,Structural engineering ,Dissipation ,0201 civil engineering ,Planar ,021105 building & construction ,Architecture ,medicine ,medicine.symptom ,Safety, Risk, Reliability and Quality ,Ductility ,business ,Beam (structure) ,Civil and Structural Engineering - Abstract
This paper investigates the post-fire seismic performance of steel reinforced concrete (SRC) beam to SRC column frames. Five SRC column to SRC beam planar frame specimens were tested in a program including a loaded fire test and a following horizontal cyclic loading test. Test parameters included heating time and column load ratio. The temperature development, deformation, post-fire hysteretic and skeleton curves, stiffness, ductility and damping coefficient of SRC frames are recorded, calculated and analyzed. The measured post-fire hysteretic curves indicates that the SRC frames exhibit very good energy dissipation capacity after fire exposure. The horizontal load capacity and viscous damping coefficient of SRC frames increase with the increase of column load ratio. However, column load ratio has an adverse influence on ductility as anticipated at normal temperature. One SRC frame specimen failed during the cooling phase, which demonstrates the importance of considering the cooling phase during the fire safety design.
- Published
- 2020