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3D numerical assessment of the progressive collapse resistance of a seismic resistant steel building with post-tensioned beam-column connections

Dimopoulos, C; Freddi, F; Karavasilis, TL; Vasdravellis, G; (2017) 3D numerical assessment of the progressive collapse resistance of a seismic resistant steel building with post-tensioned beam-column connections. In: Proceedings of the 9th Hellenic National Conference of Steel Structures. Steel Structures Research Society: Larisa, Greece. Green open access

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Abstract

This paper presents the numerical assessment of the progressive collapse resistance of a seismic-resistant steel building with post-tensioned beam-column connections. The numerical simulations are carried out in 3D under a loss of column scenario. The 3D model considers the effect of the composite slab, where composite beams and their shear connectors are modeled with a combination of shell, beam and nonlinear connector elements. All the beam-column and beam-to-beam connections are modeled using nonlinear connector elements with appropriate failure criteria. Moreover, the steel frame for which a column is removed is modelled in full detail with the aid of 3D solid elements to accurately capture its local and global nonlinear behavior. Nonlinear static analyses are carried out to identify the failure modes of the building under a sudden loss of column scenario and investigate the effect of the floor slab on the overall progressive collapse resistance.

Type: Proceedings paper
Title: 3D numerical assessment of the progressive collapse resistance of a seismic resistant steel building with post-tensioned beam-column connections
Event: 9th Hellenic National Conference of Steel Structures
Location: Larisa, Greece
Dates: 05 October 2017 - 07 October 2017
Open access status: An open access version is available from UCL Discovery
Publisher version: http://eeme.ntua.gr/9HNCSS/en/index.html
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1575844
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