Dynamic response and damage analysis of precast segmental piers under blast impact

YANG Xu; ZHANG Yuye; ZHANG Ning

doi:10.11883/bzycj-2017-0429

Volume 39 Issue 3

Mar. 2019

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YANG Xu, ZHANG Yuye, ZHANG Ning. Dynamic response and damage analysis of precast segmental piers under blast impact[J]. Explosion And Shock Waves, 2019, 39(3): 035104. doi: 10.11883/bzycj-2017-0429

Citation:

YANG Xu, ZHANG Yuye, ZHANG Ning. Dynamic response and damage analysis of precast segmental piers under blast impact[J]. Explosion And Shock Waves, 2019, 39(3): 035104. doi: 10.11883/bzycj-2017-0429

YANG Xu, ZHANG Yuye, ZHANG Ning. Dynamic response and damage analysis of precast segmental piers under blast impact[J]. Explosion And Shock Waves, 2019, 39(3): 035104. doi: 10.11883/bzycj-2017-0429

Citation:

YANG Xu, ZHANG Yuye, ZHANG Ning. Dynamic response and damage analysis of precast segmental piers under blast impact[J]. Explosion And Shock Waves, 2019, 39(3): 035104. doi: 10.11883/bzycj-2017-0429

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Dynamic response and damage analysis of precast segmental piers under blast impact

doi: 10.11883/bzycj-2017-0429

Department of Civil Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China

Received Date: 2017-11-24
Rev Recd Date: 2018-05-14

Available Online: 2019-03-25

Publish Date: 2019-03-01

Abstract

Abstract

In order to study the dynamic response and damage of the precast segmental pier under the impact of explosion, the three-dimensional separate models of the circular-section precast segmental bridge piers under explosion are established based on ANSYS/LS-DYNA. The reliability of the simulation method is verified by comparing with the previous experimental results. The influence of slender ratio of segments, initial post-tensioning level and pier system type on the dynamic response and damage of the circular-section precast segmental pier under blast are investigated based on the verified model. The results show that the decrease of segment slender ratio makes the precast piers gradually change from shear damage to inter-segment displacement and it can reduce the lateral displacement of the pier; the increase of the initial post-tensioning can improve the anti-blast performance of the piers to some extent; the piers with the hybrid system under blast have both the failure characteristics of the segmental and monolithic piers.
- precast segmental piers,
- blast response,
- anti-blast performance,
- damage analysis

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References(24)

References

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