An Investigation of the Ground Motion Scaling Procedures for the Nonlinear Seismic Analyses of Concrete Gravity Dams

Soysal B. F., AY B. Ö., ARICI Y.

JOURNAL OF EARTHQUAKE ENGINEERING, vol.23, no.6, pp.930-953, 2019 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 23 Issue: 6
  • Publication Date: 2019
  • Doi Number: 10.1080/13632469.2017.1342298
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.930-953
  • Keywords: Ground Motion Selection, Ground Motion Scaling, Nonlinear Analysis, Concrete Gravity Dam, Damage Level, DAMAGE, EARTHQUAKE, SELECTION, INPUT
  • Middle East Technical University Affiliated: Yes


Seismic assessment of gravity dams is generally carried out using time history analyses. Scaling of the motions is commonly used; however, in contrast to buildings, the performance of scaling procedures at predicting the mean and reducing the dispersion in engineering demand parameters (EDPs) is not known. The main goal of this study is to assess the performance of different scaling procedures in predicting seismic demands on dams. The performance regarding the prediction of the damage and the required number of motions for effective analysis was investigated. The results show that techniques commonly used for moment frames should not readily be applied to these structures.