Performance based seismic design and assessment of 3D irregular steel structures

• Type: Article in International Conference Proceedings Book
• Date: 2012

Authors

R. Peres (Author) Other; J. M. Castro (Author) FEUP; R. Bento (Author) Other

Conference proceedings International

Title: 15th World Conference on Earthquake Engineering, WCEE 2012

15th World Conference on Earthquake Engineering, WCEE 2012

Lisbon, Portugal, 24-28 September 2012

Indexing

ISI Proceedings

Scopus

Scientific classification

FOS: Engineering and technology > Civil engineering

CORDIS: Technological sciences > Engineering > Civil engineering > Structural engineering

Other information

Abstract (EN): In recent years, Nonlinear Static Procedures (NSPs) became a powerful tool for seismic performance evaluation. Several seismic design/assessment Guidelines have recommended this type of procedure as design/evaluation technique. The aim of this work is to assess the performance of these procedures applied to a set of 1-storey steel structures with plan irregularities. To investigate the torsional phenomenon, two types of structures were considered, namely torsionally restrained and torsionally unrestrained. The NSPs evaluated were the original N2 method recommended in Eurocode 8 (CEN, 2004), the Extended N2 method developed by Fajfar et al. (2005), the Capacity Spectrum Method (CSM) specified in ATC40 (ATC, 1996) with the improvements presented in FEMA 440 Report (ATC, 2005) and the Adaptive Capacity Spectrum Method (ACSM) proposed by Pinho et al. (2007). The accuracy of the different Nonlinear Static Procedures was examined through comparison of the results with those obtained from nonlinear dynamic time-history analysis.

Language: English

Type (Professor's evaluation): Scientific