Gutiérrez Urzúa, LF;
Freddi, F;
Di Sarno, L;
Wu, J;
D’Aniello, M;
Bousias, S;
(2021)
Preliminary numerical analysis of the seismic response of steel frames with masonry infills retrofitted by buckling-restrained braces.
In:
Proceedings of the 8 th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering COMPDYN 2021: Vol 1.
(pp. pp. 1506-1518).
Institute of Structural Analysis and Antiseismic Research, School of Civil Engineering, National Technical University of Athens (NTUA) Greece: Athens, Greece.
Preview |
Text
Gutiérrez-Urzúa et al - Compdyn 2021 - Preliminary Numerical Analysis of the Seismic Response of SF with MI Retrofitted by BRBs - Submitted_v2.pdf - Published Version Download (1MB) | Preview |
Abstract
Existing steel moment-resisting frames in several seismic regions worldwide are often characterised by high vulnerability to earthquakes due to insufficient local and/or global ductility. Nowadays, it is of paramount importance to assess their response under strong motions and provide cost-effective retrofitting strategies. Amongst others, the seismic behaviour of these frames is often strongly affected by the presence of masonry infills which, from one side, if adequately distributed, beneficially contribute to the seismic resistance of the structure providing stiffness and strength to the frame, from the other side often experience a brittle behaviour and are very vulnerable to seismic actions. To this end, the H2020-INFRAIA-SERA project HITFRAMES (i.e., HybrId Testing of an Existing Steel Frame with Infills under Multiple EarthquakeS) experimentally evaluated a case study building representative of non-seismically designed European steel frames with masonry infills and investigated a possible retrofit strategy. This paper takes advantage of the experimental results of the HITFRAMES project to calibrate numerical models in OpenSees of a case study building which is analysed as bare, infilled and retrofitted frame with buckling-restrained braces (BRBs). The impact of masonry infills and BRB-retrofit is investigated by comparing the response of models with different configurations. The numerical results provide some insights on the ability of BRB-retrofit option in protecting not only the steel frames from experiencing critical damage during earthquakes but also the masonry infills and on the importance of using appropriate models for the masonry infills in the assessment procedures.
| Type: | Proceedings paper |
|---|---|
| Title: | Preliminary numerical analysis of the seismic response of steel frames with masonry infills retrofitted by buckling-restrained braces |
| Event: | COMPDYN 2021: 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering |
| Location: | Athens |
| Dates: | 27 June 2021 - 30 June 2021 |
| ISBN-13: | 978-618-85072-3-4 |
| Open access status: | An open access version is available from UCL Discovery |
| Publisher version: | https://2021.compdyn.org/ |
| 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. |
| Keywords: | Existing steel frames, Retrofitting, Buckling-restrained braces, Masonry infills, Seismic response, Numerical Simulations. |
| UCL classification: | UCL 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/10132125 |
Loading...
Loading...Loading...Loading...Archive Staff Only
 |
View Item |
