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- Title
Experimental and Simulation Studies on the Seismic Performance of I-section Steel-Concrete Composite Columns.
- Authors
Hui, Cun; Cao, Wanlin; Wang, Yuanqing; Wang, Bin
- Abstract
This study analyses the working mechanism and seismic performance index of I-section steel-reinforced concrete columns with concealed double steel plates and bottom-strengthened I-section concrete-filled steel tube columns subjected to compression-bending load. For this purpose, six column models with different constructions were tested under horizontal low cyclic loading. Based on the experiments, the load-bearing capacity, stiffness and degradation process, ductility, hysteretic energy dissipation capacity and failure characteristics of the models were analysed. The formulae for calculating the load-bearing capacity for the normal and oblique sections of I-section steel-concrete composite columns were derived, and the finite element (FE) numerical simulation of the classical specimens was performed. According to the results, the load-bearing capacity, ductility and seismic energy dissipation capacity of the bottom-strengthened I-section steel-concrete composite columns are obviously improved when compared with those of the conventional I-section steel-concrete composite columns. Moreover, the calculated and FE numerical simulation results are found to be in good agreement with the experimental results. Further, the bottom-strengthened I-section steel-concrete composite column shows better seismic behaviour and higher energy dissipation capacity under suitable constructional requirements, indicating their suitability for constructing high-rise buildings.
- Subjects
REINFORCED concrete; STEEL-concrete composites; CONCRETE columns; EARTHQUAKE resistant design; MECHANICAL loads; COMPRESSION loads
- Publication
Advances in Structural Engineering, 2015, Vol 18, Issue 2, p251
- ISSN
1369-4332
- Publication type
Article
- DOI
10.1260/1369-4332.18.2.251