Seismic response of a container crane subjected to ground motions

Bismark Kofi Meisuh, Junwon Seo, Jungwon Huh, Junghan Kim, Jae Min Kim

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


This study examined the effect of earthquake frequency on the seismic response of a typical modern container crane. A time-history analysis was carried out on the crane using 93 real ground motion records to investigate its behavior. Also, an eigenvalue and a nonlinear pushover analysis were conducted to obtain the dynamic properties and assess the structural performance of the crane, respectively. Three earthquake suites categorized as low-frequency earthquake suite (LFES), intermediate frequency earthquake suite (IFES), and high-frequency earthquake suite (HFES) were considered in this study. The earthquakes were categorized into the three frequency suites based on their peak ground acceleration-to-peak ground velocity ratio (PGA/PGV). By applying the three earthquake suites in the time-history analysis of the crane, drift ratio, internal forces, stresses, and strain were captured to examine its critical seismic response. The results demonstrated the effect of the frequency content on the seismic response of the crane. The LFES was found to cause drift responses averaging 114% and 480% and stress responses averaging 82% and 261%, which were higher than those of IFES and HFES. LFES, IFES, and HFES were found to exact inelastic demands on the crane above the PGA thresholds of 0.34 g, 0.80 g, and 1.99 g, respectively. The LFES was found to cause an uplift response that averaged 468% higher than that of IFES. The uplift caused by the HFES was observed to be inconsequential. Furthermore, it was found that the ground motions with low PGA/PGV ratio values had a larger damage potential on the container crane.

Original languageEnglish
Article number103270
JournalApplied Ocean Research
StatePublished - Sep 2022

Bibliographical note

Funding Information:
This research was a part of the project entitled ‘Development of performance-based seismic design technologies for advancement in design codes for port structures’, funded by the Ministry of Oceans and Fisheries ( 20160065 ), Korea.

Publisher Copyright:
© 2022 Elsevier Ltd


  • Container crane
  • Drift ratio
  • Frequency
  • Ground motion
  • Seismic response
  • Structural performance
  • Time-history analysis

ASJC Scopus subject areas

  • Ocean Engineering


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