Seismic pounding between adjacent buildings of unequal floor height

When the story heights of adjacent buildings are unequal, the inter-floor pounding maybe happen during earthquake. Employing substructures in pounding area, the analytical model of adjacent structures with unequal story height is developed, and the equations of motion considering pounding are derived. Based on analytical model, the inter-floor pounding responses of adjacent buildings with unequal story height are investigated. The corresponding parametrical studies are conducted and influence rules are concluded. The results show that the influences of inter-floor pounding in adjacent buildings on main structures are smaller than those of floor pounding. But the damages on pounding area are quite large. Moreover, the period ratio of structures, the initial gap and the pounding location have remarkable influence on responses of inter-floor pounding.

[1]  Vitelmo V. Bertero.  Observations on Structural Pounding , 1987 .

[2]  Reginald DesRoches,et al.  A Hertz contact model with non‐linear damping for pounding simulation , 2006 .

[3]  Jeng-Hsiang Lin,et al.  SEPARATION DISTANCE TO AVOID SEISMIC POUNDING OF ADJACENT BUILDINGS , 1997 .

[4]  Kazuhiko Kasai,et al.  Dynamics of pounding when two buildings collide , 1992 .

[5]  Van Jeng,et al.  Assessment of seismic pounding hazard for Taipei City , 2000 .

[6]  J. P. Wolf,et al.  Mutual pounding of adjacent structures during earthquakes , 1980 .

[7]  Fang Lei-qing.  Seismic response analysis of base-isolated structures considering pounding of adjacent buildings , 2010 .

[8]  E. Rosenblueth.  The 1985 earthquake : Causes and effects in Mexico City , 1986 .

[9]  Michele Barbato,et al.  A probabilistic performance-based risk assessment approach for seismic pounding with efficient application to linear systems , 2012 .

[10]  Robert Jankowski,et al.  Non-linear FEM analysis of pounding-involved response of buildings under non-uniform earthquake excitation , 2012 .

[11]  Robert Jankowski,et al.  Earthquake-induced pounding between equal height buildings with substantially different dynamic properties , 2008 .

[12]  Chris G. Karayannis,et al.  Earthquake‐induced interaction between adjacent reinforced concrete structures with non‐equal heights , 2005 .

[13]  S. Naserkhaki,et al.  Earthquake induced pounding between adjacent buildings considering soil-structure interaction , 2012, Earthquake Engineering and Engineering Vibration.