Open Access
ARTICLE
The Dynamic Response Analysis of Concrete Gravity Dam under the Earthquake
Yang Lu1, Li Shi-Min1, Cao Peng2, Shen Xin-Pu1
1 ShenYang University of Technology, Shenyang, 110870, Liaoning, China.
2 School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, China.
Structural Longevity 2013, 9(1), 23-36. https://doi.org/10.3970/sl.2013.009.023
Abstract
Based on the finite element software ABAQUS, the dynamic time history of the concrete gravity dam has been analyzed. Considering the gravity dam’s
action of dynamic water pressure effect under the earthquake, we made a layer of
user unit and given the unit quality through the door subroutine UEL relying on
additional quality law, and the unit has been attached to the dam. By the statistics
and analysis about displacement, stress, damage and energy of the feature points
of the dam, we can conclude that: the dam stress and displacement of the most
unfavorable moment most concentrated in a fairly recent time area, corresponding
the larger seismic acceleration; damage first occurred in dam heel F point, then in
dam neck near downstream variable cross section D point also started to happen
damage; with the continuing earthquake, damage gradually becomes transverse development , and then extended to the internal; the dam mainly depend on material
damping to consume energy, inelastic dissipation and damage dissipation can only
consume a small part of energy; the most unfavorable position of stress, displacement, damage and energy of the dam appeared in the dam heel F point, toe G point
and downstream folding slope D point. By the research of the action of nonlinear dynamic response and failure mechanism under seismic load of the dam, some
reaction laws of the gravity dam in general power load have been revealed, it has
provided reference for seismic design and seismic measures for the study of the
dam.
Keywords
Cite This Article
Lu, Y., Shi-Min, L., Peng, C., Xin-Pu, S. (2013). The Dynamic Response Analysis of Concrete Gravity Dam under the Earthquake.
Structural Longevity, 9(1), 23–36.