Seismic Tests on Square Thin-Walled Steel Tubular Columns Filled with Demolished Concrete Lumps

Abstract:

This paper presents a most recent experimental work for evaluating the seismic behaviors of square thin-walled steel tubular columns filled with demolished concrete lumps (DCLs). Fifteen specimens with 300 × 300 mm square section, including 10 columns filled with DCLs and 5 reference columns without DCLs, were tested under combined axial compression and lateral cyclic loading. The parameters considered in the tests are: replacement ratio of DCLs, thickness of steel tube, and axial load ratio. Research findings indicate that the seismic performances of square thin-walled steel tubular columns filled with DCLs are similar to the benchmark columns without DCLs, and the square thin-walled steel tubular columns filled with DCLs also exhibit acceptable ductilities and energy dissipation abilities.

• Periodical: Key Engineering Materials (Volume 517)
• Pages: 958-967
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.517.958
• Online since: June 2012
• Authors: Bo Wu, Xin Yu Zhao, Jin Suo Zhang, Qiong Xiang Liu
• Keywords: Column, Demolished Concrete, Seismic Behavior, Square Thin-Walled Steel Tube, Test

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