22–24 Mar 2021
University of Zagreb Faculty of Civil Engineering, Zagreb, Croatia
Europe/Zagreb timezone

SEISMIC PERFORMANCE OF A RC BUILDING FOUNDED ON SOFT STRATIFIED SOILS

Not scheduled
20m
VP (University of Zagreb Faculty of Civil Engineering, Zagreb, Croatia)

VP

University of Zagreb Faculty of Civil Engineering, Zagreb, Croatia

Kačićeva 26 10 000 Zagreb
Full paper - scientific Seismic Performance of Structures

Speaker

Mr João Alves (MSc Student, Department of Civil Engineering, NOVA School of Science and Technology)

Description

The seismic performance of a structure is determined by a series of factors that are related with the earthquake source characteristics, site effects and structural capacity, among others. The state of the art of seismic vulnerability assessment methods, using probabilistic approach, are capable of incorporate the effect of some of these factors. Within the epistemic uncertainties, the soil effects have an important contribution as soil profile characteristics have a major influence on spectral amplification results. This is more evident in case of the softer soil types. Eurocode 8 specifications for seismic design of structures founded on very soft (stratified) soils, classified as S1, requires special studies to define the seismic action. In this work the seismic performance of a 9 story (7 stories and 2 underground stories) RC structure, founded on an S1 type soil, located in Lisbon, Portugal is evaluate by means of nonlinear static results (N2 method). Global performance is evaluated and damage limitation control, in terms of interstorey drifts according to Eurocode 8, is verified in the central members for the different soil profiles.

Keywords Local site effects, equivalent linear analysis, DeepSoil, seismic assessment, capacity curves.
DOI https://doi.org/10.5592/CO/1CroCEE.2021.153

Primary authors

Mr João Alves (MSc Student, Department of Civil Engineering, NOVA School of Science and Technology) Prof. Ildi Cismasiu (UNIC, Department of Civil Engineering, NOVA School of Science and Technology) Prof. Teresa Santana (UNIC, Department of Civil Engineering, NOVA School of Science and Technology)

Presentation materials