Numerical Analysis on the Seismic Resistance of Steel Tube Columns Filled with Recycled Aggregate Concrete

Abstract:

Horizontal bearing capacity and seismic resistance of Recycled aggregate Concrete Filled Steel Tube (RCFST) columns under low cyclic loads have been analyzed by nonlinear finite element software in this paper. A three-dimensional nonlinear finite element (FE) model was developed, and some parameters that affect the restoring force model of RCFST columns were studied, including axial compression ratio, steel ratio, steel yield strength, strength of core recycled aggregate concrete and recycled aggregate substitution rate. Analysis results show that, along with steel ratio, steel yield strength and recycled aggregate substitution rate increasing, seismic resistance of RCFST becomes better. However, the increase of core recycled aggregate concrete and axial compression ratio will weaken seismic resistance of RCFST columns.

• Periodical: Applied Mechanics and Materials (Volumes 446-447)
• Pages: 1472-1476
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.446-447.1472
• Online since: November 2013
• Authors: Xu Xiang Wang, Feng Liu, Wen Xian Feng, Lan Zeng
• Keywords: Recycled Aggregate Concrete Filled Steel Tube Columns, Recycled Aggregate Substitution Rate, Seismic Performance

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