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Abstract:
The finite element model of a Levy-type cable dome structure was established,and this model could provide the criteria for determining the rationality of finite element results. The impact failure criterion was proposed. The full analysis of dynamic response under a large number of impact conditions was conducted,and the failure distribution and failure modes of the members of the structure were given,which reveals the failure mechanism under vertical impact loads. Based on the analysis of impact failure mechanism and parameters,a set of anti-impact measures were proposed. The research results show that all impact conditions follow the impact criteria. Within the selected vertical impact load range,the failure modes of the Levy-type cable dome structure are divided into four types,which are slight structural damage,local level 1 structural failure,local level 2 structural failure,and overall structural damage. As the impact kinetic energy increases,the dynamic response mode of the structure gradually progresses from mode 1 to mode 2,then to mode 3,and finally to mode 4. The dynamic response mode of the structure is determined by the energy absorption value of the structure and the velocity difference between the two ends of the member. © 2024 Tongji University. All rights reserved.
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Source :
Progress in Steel Building Structures
ISSN: 1671-9379
Year: 2024
Issue: 8
Volume: 26
Page: 51-59
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SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 10
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