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.
|Titel||Recent advances in earthquake engineering in Europe|
|Status||Published - apr 2018|
|Evenement||16th European Conference on Earthquake Engineering - Thessaloniki, Thessaloniki, Greece|
Duur: 18 jun 2018 → 21 jun 2018
|Reeks||Geotechnical, Geological and Earthquake Engineering|
|Conference||16th European Conference on Earthquake Engineering|
|Periode||18/06/18 → 21/06/18|