Song, B;
Galasso, C;
(2019)
The effect of directivity-induced pulse-like ground motions on fracture risk of welded steel column splices.
In:
Proceedings of the 13th International Conference on Applications of Statistics and Probability in Civil Engineering(ICASP13).
(pp. p. 348).
S-Space: Seoul, South Korea.
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Abstract
Recent, worldwide earthquakes have highlighted the destructive potential of near-fault, pulse-like ground motions caused by forward directivity. This study investigates the fracture risk of welded steel column splices (WCSs) in near-fault regions, especially quantifying the pulse effects on WCS stress demands through incremental dynamic analysis (IDA). For this purpose, two case-study nonlinear steel moment frame models are developed and subjected to a set of pulse-like ground motions with varying pulse periods and a suite of ordinary (i.e., non-pulse-like) ground motions, respectively. Results of IDA are then combined with near-source probabilistic seismic hazard analysis (NS-PSHA) to assess fracture risk. Findings from the study suggest that WCSs in pre-Northridge steel frames may be highly susceptible to fracture due to directivity-induced pulse-like ground motions.
| Type: | Proceedings paper |
|---|---|
| Title: | The effect of directivity-induced pulse-like ground motions on fracture risk of welded steel column splices |
| Event: | 13th International Conference on Applications of Statistics and Probability in Civil Engineering(ICASP13) |
| ISBN: | 979-119671250195530 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.22725/ICASP13.348 |
| Publisher version: | https://doi.org/10.22725/ICASP13.348 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| 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/10082989 |
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