Seismic performance evaluation of steel circular hollow section bridge piers with corroded ends

Zhang, Qiang; Wen, Jianian; Han, Qiang; Wang, Zhanfei; Sun, Jubo

doi:10.1007/s10518-023-01748-1

Cited by 5 publications

(2 citation statements)

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“…The stress-strain relationship is described by a bilinear model and the plastic secant modulus is one percent of Young's modulus [16]. In addition, the kinematic hardening that can simulate the Bauschinger effect is selected as the hardening model in the constitutive model [4].…”

Section: Materials Propertiesmentioning

confidence: 99%

“…However, previous studies have carried out tests and finite element studies on columns, beams, joints, and other common components in steel structures under various extreme loads (such as earthquake, corrosion, fire, etc. ), and little research has been conducted at the structural level [2][3][4][5][6][7][8][9][10]. When extreme loads such as earthquakes act on structures (such as long-span steel arch bridges), even if members such as columns and joints are not completely destroyed, the damage caused by excessive relative displacement between members (such as unseating due to damage of restrainers) might still seriously affect the service function of the bridge [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

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Study of the Impact of Varying Inclination Angles of Arch Ribs on the Seismic Behavior of Half-Through Steel Basket-Handle Arch Bridge

Sun,

Chen,

Wang

et al. 2024

Buildings

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In the present study, multiscale finite element (FE) models of half-through steel basket-handle arch bridges were established. The eigenvalue analyses were conducted to explore the dynamic characteristics of the arch bridges based on the FE models. In addition, a parametric analysis was carried out to investigate the impact of the inclination angle of the arch rib (0°, 4°, and 7°) on the longitudinal and transverse seismic performances of arch bridges. The results show that with the increase in inclination angle, the out-of-plane stiffness of half-through steel basket-handle arch bridges increases, resulting in the natural period of the structure becoming shorter from 3.09 s to 2.93 s. Adjusting the inclination angle appropriately has a beneficial impact on the overall seismic performance of the structures, affecting both displacement and internal forces, in which the most significant improvements include a 42.8% decrease in displacement and a 62.6% reduction in internal forces. Adjusting the inclination angle can cause the arch springing and transverse brace to undergo larger plastic deformation. It is advisable to judiciously enlarge the sectional dimensions and enhance the material strength of both the arch springing and the transverse bracing in seismic designs.

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Section: Materials Propertiesmentioning

confidence: 99%