Numerical Modeling and Seismic Analysis of Tall Steel Buildings with Braced Frame Systems

Authors

  • Vittoria Mazzotta
    Affiliation
    ROSE Programme, UME School, IUSS Pavia, Institute for Advanced Study, 27100 Pavia, via Ferrata 1, Italy
  • Emanuele Brunesi
    Affiliation
    Eucentre - European Centre for Training and Research in Earthquake Engineering
  • Roberto Nascimbene
    Affiliation
    Eucentre - European Centre for Training and Research in Earthquake Engineering
https://doi.org/10.3311/PPci.9469

Abstract

The following paper presents the design and verification steps of tall steel frame structures with braced core, belt and outrigger trusses. The two case study structures refer to sky scrapers of 180m and 300m respectively, located in Istanbul, Turkey. The main objectives of this study are two: firstly designing the buildings through multilevel structural analysis, secondly to compare the results, in terms of seismic response, between response spectrum analysis (RSA) and nonlinear time history analysis (NLTHA). Such comparison has been made with the intention of investigating the relationship between the structure height and the accuracy of RSA predictions, considering that the latter approach tends to underestimate the influence of higher mode effects. In conclusion the capacity curves of the two structures, developed using incremental nonlinear dynamic analysis, are presented as an ulterior way to assess the seismic capacity of such type of high-rise structural systems.

Keywords:

tall steel buildings, concentrically braced frames, response spectrum analysis, nonlinear dynamic analysis

Citation data from Crossref and Scopus

Published Online

2016-10-26

How to Cite

Mazzotta, V., Brunesi, E., Nascimbene, R. “Numerical Modeling and Seismic Analysis of Tall Steel Buildings with Braced Frame Systems”, Periodica Polytechnica Civil Engineering, 61(2), pp. 196–208, 2017. https://doi.org/10.3311/PPci.9469

Issue

Section

Research Article