Dynamic Elasto-Plastic Analysis on the Steel Spatial Arch Truss with 120 m Span and 0.4 Rise-Span Ratio

Hai Wang Li; Yu Ma; Jing Liu

doi:10.4028/www.scientific.net/AMM.105-107.862

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 105-107Dynamic Elasto-Plastic Analysis on the Steel...

Dynamic Elasto-Plastic Analysis on the Steel Spatial Arch Truss with 120 m Span and 0.4 Rise-Span Ratio

Abstract:

In this paper, the elasto-plastic dynamic analysis on the steel spatial arch truss with 120 m span and 0.4 rise-span ratio is carried out under earthquake EL-Centro wave with SAP2000 about pin-connected model and rigid truss model. The geometric and material nonlinear effects are considered simultaneously based on the plastic-hinge theory. The study shows that the vertical stiffness of the two models is smaller than horizontal stiffness; the failure mode of the pin-connected truss model under the earthquake action is elasto-plastic dynamic buckling, and the failure mode of the rigid truss model under the earthquake action is between the elasto-plastic dynamic buckling and the strength failure.In order to improve the ductility of the truss, we should enhance the design of joint stiffness in actual structures.

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Periodical:

Applied Mechanics and Materials (Volumes 105-107)

Pages:

862-866

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.105-107.862

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Online since:

September 2011

Authors:

Hai Wang Li, Yu Ma, Jing Liu

Keywords:

Earthquake Action, Elasto-Plastic Dynamic Response, Plastic Hinge, Steel Arch Truss

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References

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