Analysis of progressive collapse of a super-long span latticed steel arch structure

• Autorzy: Guo Shuangchao , Xu Delin , Shang Kaiguang , Yang Shuo , Wang Di , Li Gen , Zheng Bing , Jiao Yong

Identyfikatory

DOI

10.15632/jtam-pl/157311

• Języki publikacji: EN

Abstrakty

EN

The progressive collapse of a space grid structure which has a large number of members and a large span is the focus of current research. Before the progressive collapse of the structure, there is a problem of instability of the members. In this paper, dynamic nonlinear analysis of a super-long span latticed steel arch structure is carried out to study its progressive collapse process using a Kinematic Hardening Plasticity constitutive model compiled by Vumat material subprogram in Abaqus, which takes into account instability of the members. Differences in the dynamic response process of the structure at the collapse moment and the failure sequence of the members using the member stability model and the material failure constitutive model are compared. Compared with the material failure constitutive model, when the member stability constitutive model is used, the proportion of compressive buckling members in the structural failure is higher, and the bearing capacity of the structure is lower when the initial failure occurs. The structure suffers from localized member compressive failure rather than material yielding, which leads to the progressive collapse of the structure.

Słowa kluczowe

EN

progressive collapse; steel arch truss structure; compression instability

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2023
• Tom: Vol. 61 nr 1
• Strony: 103--117
• Opis fizyczny: Bibliogr. 20 poz., rys., tab.

Twórcy

autor

Guo Shuangchao

• Beijing Construction Engineering Group Co., Ltd, Beijing, China

autor

Xu Delin

• Beijing Construction Engineering Group Co., Ltd, Beijing, China

autor

Shang Kaiguang

• Beijing Construction Engineering Group Co., Ltd, Beijing, China

autor

Yang Shuo

• Beijing Construction Engineering Group Co., Ltd, Beijing, China

autor

Wang Di

• Beijing Construction Engineering Group Co., Ltd, Beijing, China

autor

Li Gen

• Beijing Construction Engineering Group Co., Ltd, Beijing, China

autor

Zheng Bing

• Department of Civil Engineering, China Agricultural University, Beijing, China

autor

Jiao Yong

• Beijing Construction Engineering Group Co., Ltd, Beijing, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).