Seismic damage of high-rise buildings in Bangkok caused by soft soil amplification from Mw 6.4 Laos earthquake
51
Issued Date
2025-06-01
Resource Type
ISSN
20927614
eISSN
20927622
Scopus ID
2-s2.0-105007280348
Journal Title
Earthquake and Structures
Volume
28
Issue
6
Start Page
469
End Page
477
Rights Holder(s)
SCOPUS
Bibliographic Citation
Earthquake and Structures Vol.28 No.6 (2025) , 469-477
Suggested Citation
Soralump S., Panthi K., Nuannin P., Ornthammarath T. Seismic damage of high-rise buildings in Bangkok caused by soft soil amplification from Mw 6.4 Laos earthquake. Earthquake and Structures Vol.28 No.6 (2025) , 469-477. 477. doi:10.12989/eas.2025.28.6.469 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/110635
Title
Seismic damage of high-rise buildings in Bangkok caused by soft soil amplification from Mw 6.4 Laos earthquake
Author(s)
Corresponding Author(s)
Other Contributor(s)
Abstract
Bangkok is considered as a low seismic zone but there is a seismic hazard primarily caused by the presence of thick soft clay deposit in Bangkok which has an ability to amplify the earthquake ground motion by 2-4 times. This effect makes high-rise buildings in Bangkok vulnerable to resonance effects and soil-structure interaction during distant earthquakes. In 2019, a 6.4 Mw earthquake in Laos, located at 700 km from Bangkok, caused noticeable shaking various large and small buildings around Bangkok city. This research evaluates the effect of that earthquake on various buildings located in Bangkok using Modified Mercalli Intensities (MMI) index. Additionally, a case study was conducted in a condominium to evaluate various cracks observed after the earthquake. The vibration characteristics of the building closely matched nearby seismic stations, indicating that long-distance earthquake effects influenced the oscillation between the ground motion and the building response. Since the recorded maximum surface acceleration was low, the earthquake earthquake primarily affected joints between materials with differing structural strength, while the main structure remained intact.