Cyclic loading test for emulative precast concrete walls with partially reduced rebar section

Abstract In conventional precast concrete (PC) walls subject to cyclic loading, the ductility and energy dissipation capacity are decreased by gap opening and shear slip at the panel joints. In this study, to enhance the earthquake resistance of emulative PC walls, two potential methods were studied. First, bonded or unbonded longitudinal rebars with partially reduced cross-sectional area were used at the plastic hinge zone. By using the reduced rebar area, the PC panel at the wall bottom was weakened to develop a plastic hinge zone in the PC panel rather than at the panel joints. Second, a RC–PC hybrid wall was considered, where cast-in-place concrete was used for the plastic hinge zone at the bottom of wall. Four specimens, including an ordinary RC wall, were tested under cyclic loading. The test results revealed that gap opening and shear slip at the panel joints were prevented by using the proposed methods. As a result, the ductility and energy dissipation of the proposed PC walls were comparable to those of the RC wall.

[1]  Stephen Pessiki,et al.  Seismic behavior and design of unbonded post-tensioned precast concrete frames , 1999 .

[2]  John W. Wallace.  New Methodology for Seismic Design of RC Shear Walls , 1994 .

[3]  Matthew R. Eatherton,et al.  Development and experimental validation of a nickel–titanium shape memory alloy self-centering buckling-restrained brace , 2012 .

[4]  Chin-Tung Cheng,et al.  Shaking table tests of a self-centering designed bridge substructure , 2008 .

[5]  Donald F. Meinheit,et al.  Concrete capacity design of Cazaly hangers in shallow members , 2010 .

[6]  Andrew J. Zekany,et al.  Experimental Investigation of Dogbone Moment Connections , 1998 .

[7]  M. Kabir,et al.  Experimental study of L-shaped slender R-ICF shear walls under cyclic lateral loading , 2012 .

[8]  T. Paulay,et al.  Seismic Design of Reinforced Concrete and Masonry Buildings , 1992 .

[9]  Yahya C. Kurama,et al.  Seismic Design of Partially Post-Tensioned Precast Concrete Walls , 2005 .

[10]  Yunfeng Zhang,et al.  Nonlinear dynamic behavior of steel framed roof structure with self-centering members under extreme transient wind load , 2013 .

[11]  Javeed A. Munshi.  DESIGN OF PRESTRESSED FLEXURAL SECTIONS BY THE UNIFIED DESIGN APPROACH , 1999 .

[12]  Sharon L. Wood,et al.  MINIMUM TENSILE REINFORCEMENT REQUIREMENTS IN WALLS , 1989 .

[13]  Sami H. Rizkalla,et al.  Horizontal Connections for Precast Concrete Shear Walls Subjected to Cyclic Deformations Part 1: Mild Steel Connections , 1995 .

[14]  Y. Kurama,et al.  Lateral Load Behavior and Seismic Design of Unbonded Post-Tensioned Precast Concrete Walls , 1999 .

[15]  Richard Sause,et al.  Seismic Response Evaluation of UnbondedPost-Tensioned Precast Walls , 2002 .

[16]  Chung-Che Chou,et al.  Analytical model validation and influence of column bases for seismic responses of steel post-tensioned self-centering MRF systems , 2011 .

[17]  Sri Sritharan,et al.  Preliminary results and conclusions from the PRESSS five-story precast concrete test Building , 1999 .

[18]  Brian Uy,et al.  Finite element models and cyclic behavior of self-centering steel post-tensioned connections with web hourglass pins , 2013 .

[19]  Michael G. Oliva,et al.  Seismic Behavior of Large Panel Precast Concrete Walls: Analysis and Experiment , 1989 .

[20]  Lydell Wiebe,et al.  Mitigation of Higher Mode Effects in Base-Rocking Systems by Using Multiple Rocking Sections , 2009 .

[21]  Richard Sause,et al.  Ductility demands on self-centering systems under earthquake loading , 2005 .

[22]  D. Dan.  Experimental tests on seismically damaged composite steel concrete walls retrofitted with CFRP composites , 2012 .

[23]  Theodore L. Karavasilis,et al.  Seismic structural and non-structural performance evaluation of highly damped self-centering and conventional systems , 2011 .

[24]  Su-Min Kang,et al.  Moment–curvature relationship of flexure-dominated walls with partially confined end-zones , 2007 .

[25]  SungGul Hong,et al.  Deformation Based Seismic Design of Asymmetric Wall Structures , 2002 .

[26]  Ray Kai Leung Su,et al.  Seismic behaviour of slender reinforced concrete shear walls under high axial load ratio , 2007 .

[27]  José Turmo,et al.  FEM modelling of unbonded post-tensioned segmental beams with dry joints , 2006 .

[28]  Hyun-Ho Kim,et al.  Experimental evaluation of seismic performance of precast segmental bridge piers with a circular solid section , 2008 .

[29]  John B. Mander,et al.  Seismic Performance of Precast Reinforced and Prestressed Concrete Walls , 2003 .

[30]  T. Paulay,et al.  Reinforced Concrete Structures , 1975 .

[31]  Y. Kurama.  Seismic Design of Unbonded Post-Tensioned Precast Concrete Walls with Supplemental Viscous Damping , 2000 .

[32]  Sri Sritharan,et al.  A simplified analysis method for characterizing unbonded post-tensioned precast wall systems , 2009 .

[33]  Carlos Zavala,et al.  Cyclic behavior of thin RC Peruvian shear walls: Full-scale experimental investigation and numerical simulation , 2013 .

[34]  M. J. Nigel Priestley,et al.  Overview of PRESSS Research Program , 1991 .

[35]  John W. Wallace,et al.  Yield displacement-based seismic design of RC wall buildings , 2007 .

[36]  Ezio Giuriani,et al.  Cyclic behaviour of a full scale RC structural wall , 2003 .

[37]  Alessandro Dazio,et al.  Nonlinear cyclic behaviour of Hybrid Fibre Concrete structural walls , 2008 .

[38]  Sami H. Rizkalla,et al.  Horizontal Post-Tensioned Connections for Precast Concrete Load bearing Shear Wall Panels , 1991 .

[39]  Katrin Beyer,et al.  Quasi-static cyclic tests and plastic hinge analysis of RC structural walls , 2009 .

[40]  Sharon L. Wood,et al.  Performance of Reinforced Concrete Buildings during the 1985 Chile Earthquake: Implications for the Design of Structural Walls , 1991 .

[41]  Pierino Lestuzzi,et al.  Static cyclic tests on lightly reinforced concrete shear walls , 2005 .

[42]  Tae-Sung Eom,et al.  Evaluation of energy dissipation of slender reinforced concrete members and its applications , 2010 .

[43]  Chung-Che Chou,et al.  Two-plastic-hinge and two dimensional finite element models for post-tensioned precast concrete segmental bridge columns , 2013 .

[44]  Basile G. Rabbat,et al.  Notes on ACI 318-08, building code requirements for structural concrete : with design applications , 2008 .