Proceedings of the 2023 5th International Conference on Civil Architecture and Urban Engineering (ICCAUE 2023)

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Co-simulation-based probabilistic seismic hazard assessment method combining earthquake-event and ground-motion simulation

Authors
Shaoqing Wang1, *, Jun Miao2, Cuiran Zhang1
1Earthquake Engineering Research Center, China Institute of Water Resources and Hydropower Research, Beijing, 100048, China
2PowerChina Guiyang Engineering Corporation Limited, 550081, Guiyang, China
*Corresponding author. Email: wangsq@iwhr.com
Corresponding Author
Shaoqing Wang
Available Online 12 February 2024.
DOI
10.2991/978-94-6463-372-6_4How to use a DOI?
Keywords
Event-based PSHA; stochastic finite fault method; ground-motion simulation
Abstract

Accurate estimation of ground-motion intensity is the key factor in probabilistic seismic hazard analysis (PSHA) at near-fault area. To get PSHA results matched with specific geological conditions near sites, we first propose a co-simulation-based PSHA method combining event-based PSHA and stochastic finite fault method to simulate earthquake event and then ground motion in one framework. Then, we compare the PGA distribution between stochastic finite fault simulation and ground-motion prediction equations (GMPEs). Finally, we investigate the difference of hazard curve between our new method and traditional PSHA. The results show: (1) the distribution of PGAs by stochastic finite fault method is reasonable compared to GMPEs; (2) regardless of site location and investigation time, simulation-based PSHA gives identical results to traditional PSHA; (3) the new proposed co-simulation-based method can produce roughly equivalent hazard results to traditional PSHA. The results of this study can facilitate the PSHA at near-fault areas with insufficient strong-motion records.

Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2023 5th International Conference on Civil Architecture and Urban Engineering (ICCAUE 2023)
Series
Atlantis Highlights in Engineering
Publication Date
12 February 2024
ISBN
10.2991/978-94-6463-372-6_4
ISSN
2589-4943
DOI
10.2991/978-94-6463-372-6_4How to use a DOI?
Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Shaoqing Wang
AU  - Jun Miao
AU  - Cuiran Zhang
PY  - 2024
DA  - 2024/02/12
TI  - Co-simulation-based probabilistic seismic hazard assessment method combining earthquake-event and ground-motion simulation
BT  - Proceedings of the 2023 5th International Conference on Civil Architecture and Urban Engineering (ICCAUE 2023)
PB  - Atlantis Press
SP  - 22
EP  - 34
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-372-6_4
DO  - 10.2991/978-94-6463-372-6_4
ID  - Wang2024
ER  -