Soil-structure Interaction in the Seismic Response of Coupled Wall-frame Structures on Pile Foundations

Journal Article · Tue Jul 08 04:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2963891· OSTI ID:21149031

Carbonari, S ^[1]; Dezi, F ^[2]; Leoni, G ^[3]

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1. Dept of Architecture, Constructions, Structures, Universita Politecnica delle Marche (Italy)
2. Dept of Materials, Environment Engineering, Physics, Universita Politecnica delle Marche (Italy)
3. Dept ProCAm, Universita di Camerino, Ascoli Piceno (Italy)

This paper presents a study on the seismic response of coupled wall-frame structures founded on piles. A complete soil-structure interaction analysis is carried out with reference to a case study. Three different soils and seven real accelerograms are considered. Local site response analyses are performed in order to evaluate the incoming free-field motion at different depths and the ground motion amplifications. A numerical model, accounting for the pile-soil-pile interaction and for material and radiation damping, is used to evaluate the impedance matrix and the foundation input motion. The domain decomposition technique is adopted to perform time-domain seismic analyses introducing Lumped Parameter Models to take into account the impedance of the soil-structure system. Applications show that the rocking phenomena affect the behaviour of the structure by changing the base shear distribution within the wall and the frame and by increasing the structural displacements.

• OSTI ID: 21149031
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1020; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
ACCELEROMETERS
DAMPING
DECOMPOSITION
EARTHQUAKES
FOUNDATIONS
GROUND MOTION
MECHANICAL IMPEDANCE
NUMERICAL ANALYSIS
SEISMOLOGY
SHEAR
SOIL-STRUCTURE INTERACTIONS
SOILS