Experimental Study of Seismic Performances of RC Bridge Columns with CFST Column Embedded Inside

doi:10.6119/JMST-014-0612-1

淡江大學機構典藏 > 工學院 > 土木工程學系暨研究所 > 期刊論文 > Item 987654321/104665

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題名:	Experimental Study of Seismic Performances of RC Bridge Columns with CFST Column Embedded Inside
作者:	Qiu, Wen-Liang;Kao, Chin-Sheng;Kou, Chang-Huan;Tsai, Jeng-Lin
關鍵詞:	composite columns;bridges;seismic effects;cyclic tests, damage;ductility
日期:	2015-04-01
上傳時間:	2016-01-06 11:06:32 (UTC+8)
摘要:	To improve the seismic performances of reinforced concrete (RC) bridge columns and to prevent columns from shear failure and core concrete crushing, high strength concrete filled steel tube (CFST) is put into RC columns to form a new kind of composite column. Through cyclical loading tests, the seismic performances of four columns are studied. The first column tested is a conventional RC column, the second one is a bonded composite column, the third one is an unbonded composite column, and the fourth one is an unbonded composite column whose axial force is composed of only bone by its CFST column. The test results show that the CFST column can increase the flexural strength, displacement ductility and energy dissipation capacity, and decrease the residual displacement after undergoing large deformation. When the degree of bond between the steel tube and the outside concrete around the tube is reduced, the load-carrying capacity of the composite column decreases, but the ductility increases. When the axial force is only bone by the CFST column, the load-carrying capacity of the composite column decreases significantly, and the ductility increases markedly.
關聯:	Journal of Marine Science and Technology 23(2), pp.212-219
DOI:	10.6119/JMST-014-0612-1
顯示於類別:	[土木工程學系暨研究所] 期刊論文

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