Torsional Earthquake-Induced Pounding between Adjacent Buildings Founded on Different Soil Types

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Miari Mahmoud; Jankowski Robert

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Journal Paper

Paper Information

Journal: Journal of Seismology and Earthquake Engineering Year:2024 | Volume:26 | Issue:2 Page(s): 49-62

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Information Journal Paper

Title

Torsional Earthquake-Induced Pounding between Adjacent Buildings Founded on Different Soil Types

Author(s)

Miari Mahmoud | Jankowski Robert | Issue Writer Certificate

Keywords

Structural pounding

irregular buildings

torsional response

soil type

Earthquakes

Abstract

This paper investigates the effect of the soil type on the torsional response of buildings experiencing torsional pounding due to earthquake excitations. Six buildings (one 4-storey building and five 6-storey buildings) with different configurations have been considered. First, pounding between different structures has been analysed for a specified soil type and the effect of the torsional pounding and the contact asymmetry on the torsional response of colliding buildings has been investigated. Then, these pounding cases have been considered for different soil types to study the effect of the soil type on the torsional response of buildings experiencing torsional pounding. Five soil types have been considered, i.e. hard rock, rock, very dense soil and soft rock, stiff soil and soft clay soil. The results of the study indicate that the earthquake-induced torsional pounding causes an increase in the peak storey rotation of the colliding buildings as compared to the symmetric pounding in all cases. Higher peak storey rotations have been experienced for colliding buildings founded on the soft clay soil, then for buildings founded on the stiff soil, then for buildings founded on very dense soil and soft rock, and finally for buildings founded on the rock and hard rock.

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