Coupled horizontal and rocking vibration, and seismic shear-wave scattering of a piled plate on a transversely isotropic half-space

Autor(es)

Labaki, Josue ^[1] ; Barros, Persio L. A. ^[2] ; Mesquita, Euclides ^{[3, 1]}

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Sch Mech Engn, Rua Mendeleyev 200, Cidade Univ Zeferino Vaz, BR-13083860 Campinas, SP - Brazil

^[2] Univ Estadual Campinas, Sch Civil Engn, Rua Saturnino de Brito 224, BR-13083889 Campinas, SP - Brazil

^[3] CCES, Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Engineering Analysis with Boundary Elements; v. 106, p. 609-623, SEP 2019.
• Citações Web of Science: 0

Resumo

A boundary element model of a piled raft foundation under horizontal and rocking excitations is presented. Excitations are time-harmonic and can be either horizontal loads and rocking moments applied to the raft, or a vertically-propagating seismic shear wave. The raft is modeled as a rigid circular plate bonded to the surface of the soil, and the pile is an elastic body embedded in the soil. The soil is a three-dimensional, transversely isotropic half-space. Contact tractions at the plate-soil and pile-soil interfaces are obtained by a numerical integration of Green's functions for the aforementioned half-space at discrete points. The equation of motion for the discretized piled raft is obtained upon establishing equilibrium and continuity conditions between foundation and soil throughout those interfaces. The paper investigates the effect of foundation and soil parameters in the response of the system to both external and seismic excitations. (AU)

• Processo FAPESP: 17/01450-0 - Resposta dinâmica de grandes fundações estruturais sensíveis à vibração, e estudo de caso da nova fonte brasileira de luz síncrotron
• Beneficiário: Josué Labaki Silva
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 13/08293-7 - CECC - Centro de Engenharia e Ciências Computacionais
• Beneficiário: Munir Salomao Skaf
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs