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Multistory building frames and shear walls founded on “rocking” spread footings

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Multistory building frames and shear walls founded on “rocking” spread footings

Closed access

Samenvatting

The seismic performance of a two-story 2D frame and a five-story 3D frame–shear-wall structure founded on spread (isolated) footings is investigated. In addition to footings conventionally designed in accordance with “capacity-design” principles, substantially under-designed footings are also used. Such unconventional (“rocking”) footings may undergo severe cyclic uplifting while inducing large plastic deformations in the supporting soil during seismic shaking. It is shown that thanks to precisely such behaviour they help the structure survive with little damage, while experiencing controllable foundation deformations in the event of a really catastrophic seismic excitation. Potential exceptions are also mentioned along with methods of improvement.

OrganisatieHanze
Gepubliceerd in16th European Conference on Earthquake Engineering Thessaloniki, Greece, GRC
Datum2018-04
TypeBoekdeel
DOI10.1007/978-3-319-75741-4_13
TaalEngels

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