Experimental and analytical performance evaluation of steel beam to concrete-encased composite column with unsymmetrical steel section joints

The seismic performance of steel beam to concrete-encased composite column with unsymmetrical steel section joints is investigated and reported within this paper. Experimental and analytical evaluation were conducted on a total of 8 specimens with T-shaped and L-shaped steel section under lateral cyclic loading and axial compression. The test parameters included concrete strength, stirrup ratio and axial compression ratio. The response of the specimens was presented in terms of their hysterisis loop behavior, stress distribution, joint shear strength, and performance degradation. The experiment indicated good structural behavior and good seismic performance. In addition, a three-dimensional nonlinear finite-element analysis simulating was conducted to simulate their seismic behaviors. The finite-element analysis incorporated both bond-slip relationship and crack interface interaction between steel and concrete. The results were also compared with the test data, and the analytical prediction of joint shear strength was satisfactory for both joints with T-shaped and L-shaped steel section columns. The steel beam to concrete-encased composite column with unsymmetrical steel section joints can develop stable hysteretic response and large energy absorption capacity by providing enough stirrups and decreased spacing of transverse ties in column.

[1]  L. Zeng,et al.  Cyclic performance of concrete-encased composite columns with T- shaped steel sections , 2015 .

[2]  Pankaj Agarwal,et al.  Seismic behavior of hybrid fiber reinforced cementitious composite beam–column joints , 2015 .

[3]  Gangbing Song,et al.  Bond slip detection of concrete-encased composite structure using shear wave based active sensing approach , 2015 .

[4]  S. Tangaramvong,et al.  Inelastic analysis for the post-collapse behavior of concrete encased steel composite columns under axial compression , 2015 .

[5]  Zhihua Chen,et al.  Experimental study on the seismic performance of L-shaped column composed of concrete-filled steel tubes frame structures , 2015 .

[6]  Lei Zeng,et al.  Cyclical Behavior of Concrete-Encased Composite Frame Joints with High Strength Concrete , 2015 .

[7]  Saptarshi Sasmal,et al.  Numerical simulation for seismic performance evaluation of fibre reinforced concrete beam–column sub-assemblages , 2015 .

[8]  Paolo Riva,et al.  A model for beam–column corner joints of existing RC frame subjected to cyclic loading , 2015 .

[9]  Abdollah Hosseini,et al.  Seismic retrofit of external RC beam–column joints by joint enlargement using prestressed steel angles , 2014 .

[10]  Jian Cai,et al.  Seismic behaviour of a through-beam connection between concrete-filled steel tubular columns and reinforced concrete beams , 2014 .

[11]  Demetrios M. Cotsovos,et al.  Seismic response of steel fibre reinforced concrete beam–column joints , 2014 .

[12]  Zhihua Chen,et al.  Seismic behavior of special shaped column composed of concrete filled steel tubes , 2012 .

[13]  Walter Salvatore,et al.  Seismic behaviour of beam-to-column partial-strength joints for steel–concrete composite frames , 2010 .

[14]  Jin-Ho Kim,et al.  A study on the seismic performance of concrete-filled square steel tube column-to-beam connections reinforced with asymmetric lower diaphragms , 2010 .

[15]  C. Pantelides,et al.  Seismic Rehabilitation of Reinforced Concrete Frame Interior Beam-Column Joints with FRP Composites , 2008 .

[16]  Nauzika Kovács,et al.  Experimental and analytical studies on the cyclic behavior of end-plate joints of composite structural elements , 2008 .

[17]  Sherif El-Tawil,et al.  Nonlinear Analysis of Steel-Concrete Composite Structures: State of the Art , 2004 .

[18]  Wei Cheng,et al.  Steel-reinforced concrete joints under reversal cyclic load , 2003 .

[19]  D. Griffin,et al.  Finite-Element Analysis , 1975 .

[20]  Li Bu-hui,et al.  EXPERIMENTAL STUDIES ON ASEISMIC PERFORMANCE OF T-SHAPE FABRICATED CONCRETE JOINTS WITH PRECAST EXTERNAL SHELL AND CAST-IN-PLACE CORE CONCRETE , 2013 .

[21]  L. Yi,et al.  Experimental study of the bearing capacity of steel reinforced concrete specially-shaped column-beam joint , 2011 .

[22]  Zhang Kechun.  Experimental study on seismic behavior of strengthened RC column-beam joints damaged by simulated earthquake , 2010 .

[23]  Carlo Andrea Castiglioni,et al.  Behavior of exterior partial-strength composite beam-to-column connections: Experimental study and numerical simulations , 2009 .

[24]  Zeng Lei,et al.  Experimental research on seismic behavior of steel reinforced high strength and high performance concrete frame joints , 2008 .