Mitigation of seismic pounding between two L-shape in plan high-rise buildings considering SSI effect

Ahmed Abdelraheem Farghaly , Denise-Penelope N. Kontoni

Abstract

Unsymmetrical high-rise buildings (HRBs) subjected to earthquake represent a difficult challenge to structural engineering, especially taking into consideration the effect of soil-structure interaction (SSI). L-shape in plan HRBs suffer from big straining actions when are subjected to an earthquake (in x- or y-direction, or both x- and y- directions). Additionally, the disastrous effect of seismic pounding may appear between two adjacent unsymmetrical HRBs. For two unsymmetrical L-shape in plan HRBs subjected to earthquake in three different direction cases (x, y, or both), including the SSI effect, different methods are investigated to mitigate the seismic pounding and thus protect these types of structures under the earthquake effect. The most effective technique to mitigate the seismic pounding and help in seismically protecting these adjacent HRBs is found herein to be the use of a combination of pounding tuned mass dampers (PTMDs) all over the height (at the connection points) together with tuned mass dampers (TMDs) on the top of both buildings.

Key Words

building vibration control; finite element method (FEM); high-rise building (HRB); irregular building; L-shape in plan building; nonlinear time history analysis; pounding tuned mass damper (PTMD); soil-structure interaction (SSI); tuned mass damper (TMD); unsymmetrical in plan building

Address

Ahmed Abdelraheem Farghaly — Department of Civil and Architectural Constructions, Faculty of Technology and Education, Sohag University, Sohag, 82524, Egypt
Denise-Penelope N. Kontoni — Department of Civil Engineering, School of Engineering, University of the Peloponnese, GR-26334 Patras, Greece; School of Science and Technology, Hellenic Open University, GR-26335 Patras, Greece

PDF Viewer

Preview uses the same access rules as Full Text PDF (subscription, purchase, or open access).

← Back to Volume 12, No. 3