Seismic response of SDOF systems representing masonry-infilled RC frames with damping systems

Abstract The seismic response of simplified models for masonry-infilled RC frames (MIRCFs) with damping systems is investigated through extensive nonlinear time history analysis of inelastic SDOF systems with a linear dashpot. Based on mean response data for simulated ground motions, response reduction efficiency of supplemental viscous damping in the simplified models, and the influence of various model properties are investigated. Furthermore, the applicability of conventional damping correction factors to the simplified models for MIRCFs with damping systems is evaluated by interpolating ductility demands of the inelastic SDOF systems without supplemental viscous damping with respect to reduced seismic demands. Due to unacceptably significant errors from the damping correction factors in the estimation of ductility demands, regression equations for estimating ductility demand reductions achieved by supplemental viscous damping are proposed based on the mean response for the simulated ground motions. Also, the applicability of the proposed regression equations to the near-fault ground motions is validated, and a correction term is proposed for the improvement of fitting. The proposed regression equations can be utilized to estimate supplemental viscous damping ratios achieving target ductility demands of existing MIRCFs on the preliminary design stage.

[1]  Andrew S. Whittaker,et al.  Validation of the 2000 NEHRP Provisions’ Equivalent Lateral Force and Modal Analysis Procedures for Buildings with Damping Systems , 2003 .

[2]  Mervyn J. Kowalsky,et al.  Displacement-based seismic design of structures , 2007 .

[3]  Santiago Pujol,et al.  The test of a full-scale three-story RC structure with masonry infill walls , 2010 .

[4]  Kuo-Chun Chang,et al.  Evaluation of damping reduction factors for estimating elastic response of structures with high damping , 2005 .

[5]  Andrew S. Whittaker,et al.  Evaluation of Simplified Methods of Analysis of Yielding Structures with Damping Systems , 2002 .

[6]  Andy Buchanan.  Research in Timber Engineering at Canterbury University , 1992 .

[7]  Yu-Yuan Lin,et al.  Study on Damping Reduction Factor for Buildings under Earthquake Ground Motions , 2003 .

[8]  Mario M. Attard,et al.  Modeling Fracture in Masonry , 2007 .

[9]  J. S. Hwang,et al.  Direct displacement-based design for building with passive energy dissipation systems , 2003 .

[10]  William T. Holmes,et al.  The 1997 NEHRP Recommended Provisions for Seismic Regulations for New Buildings and Other Structures , 2000 .

[11]  Giuseppina Uva,et al.  On the role of equivalent strut models in the seismic assessment of infilled RC buildings , 2012 .

[12]  Humberto Varum,et al.  A non-linear masonry infill macro-model to represent the global behaviour of buildings under cyclic loading , 2008 .

[13]  Matjaž Dolšek,et al.  The effect of masonry infills on the seismic response of a four-storey reinforced concrete frame — a deterministic assessment , 2008 .

[14]  Matjaž Dolšek,et al.  The sensitivity of seismic response parameters to the uncertain modelling variables of masonry-infilled reinforced concrete frames , 2012 .

[15]  Mónica Puglisi,et al.  Modeling of masonry of infilled frames, Part I: The plastic concentrator , 2009 .

[16]  N. Null.  Minimum Design Loads for Buildings and Other Structures , 2003 .

[17]  Andreas Stavridis,et al.  Finite-Element Modeling of Nonlinear Behavior of Masonry-Infilled RC Frames , 2010 .

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

[19]  Timothy J. Sullivan,et al.  Towards a simplified Direct DBD procedure for the seismic design of moment resisting frames with viscous dampers , 2012 .

[20]  Mjn Priestley,et al.  Modelling inelastic response in direct displacement-based design , 2005 .

[21]  Panagiotis G. Asteris,et al.  On the in-plane properties and capacities of infilled frames , 2012 .

[22]  Russell A. Green,et al.  Damping Correction Factors for Horizontal Ground-Motion Response Spectra , 2007 .

[23]  Douglas P. Taylor.  BUILDINGS: DESIGN FOR DAMPING , 1999 .

[24]  Andrew S. Whittaker,et al.  Equivalent Lateral Force and Modal Analysis Procedures of the 2000 NEHRP Provisions for Buildings with Damping Systems , 2003 .

[25]  Oren Lavan,et al.  Optimal design of supplemental viscous dampers for irregular shear‐frames in the presence of yielding , 2005 .

[26]  M. Constantinou,et al.  Elastic and Inelastic Seismic Response of Buildings with Damping Systems , 2002 .

[27]  Tomaso Trombetti,et al.  A Five-Step Procedure for the Dimensioning of Viscous Dampers to Be Inserted in Building Structures , 2010 .

[28]  Sozen,et al.  Behavior of Multistory Reinforced Concrete Frames During Earthquakes , 1972 .

[29]  Johnny Sun,et al.  Development of Ground Motion Time Histories for Phase 2 of the FEMA/SAC Steel Project , 1997 .

[30]  Peter Fajfar,et al.  Inelastic spectra for infilled reinforced concrete frames , 2004 .

[31]  Alessandra Fiore,et al.  The influence of masonry infill on the seismic behaviour of RC frame buildings , 2012 .

[32]  P. C. Jennings,et al.  Simulated earthquake motions , 1968 .

[33]  Kuo-Chun Chang,et al.  Direct displacement-based design for seismic retrofit of existing buildings using nonlinear viscous dampers , 2008 .

[34]  Wael W. El-Dakhakhni,et al.  THREE-STRUT MODEL FOR CONCRETE MASONRY-INFILLED STEEL FRAMES , 2003 .

[35]  Kuo-Chun Chang,et al.  An improved capacity spectrum method for ATC‐40 , 2003 .

[36]  Dina D'Ayala,et al.  Realistic shear capacity assessment of infill frames: Comparison of two numerical procedures , 2009 .

[37]  Peter Fajfar,et al.  Simplified non‐linear seismic analysis of infilled reinforced concrete frames , 2005 .

[38]  Jinkoo Kim,et al.  PERFORMANCE-BASED DESIGN OF ADDED VISCOUS DAMPERS USING CAPACITY SPECTRUM METHOD , 2003 .

[39]  Peter Fajfar,et al.  Mathematical modelling of an infilled RC frame structure based on the results of pseudo‐dynamic tests , 2002 .