Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A corrugated steel fender for bridge pier protection against truck collision
Abstract This study proposes a novel corrugated steel fender system to protect bridge piers against truck collisions. In particular, the impact energy is mainly absorbed through the deformation of corrugated steel webs in the fender. Pendulum impact tests are conducted to demonstrate the benefits of installing the corrugated steel web to increase the fender stiffness, engage more lateral displacement, and dissipate considerable impact energy. Advanced finite element (FE) models are established using the software LS-DYNA and verified against experimental results of the pendulum impact test. Modeling considerations are implemented into developing a high-resolution FE model to simulate full-scale truck–fender–bridge collisions, which discloses the fender’s effectiveness in protecting the bridge pier. The proposed fender system can mitigate the post-impact damage to the bridge pier by reducing its peak impact force, lateral displacement, and bending moment at the base. Moreover, parametric analyses are performed to investigate the effects of different fender design variables on the peak impact force and absorbed impact energy. Among various design parameters, the thicknesses of the corrugated steel web and surface steel plate are the predominant ones. Finally, an optimal fender design criteria is proposed to simultaneously minimize the impact damage to the bridge pier and the truck.
Highlights A novel corrugated steel fender is proposed to protect RC bridge pier against truck collision. Pendulum impact tests are performed to clarify the protection mechanism of the fender. The effectiveness of the proposed fender in mitigating the post-impact damage of bridge pier is verified. An optimal fender design criteria is proposed to simultaneously minimize the impact damage to bridge pier and truck.
A corrugated steel fender for bridge pier protection against truck collision
Abstract This study proposes a novel corrugated steel fender system to protect bridge piers against truck collisions. In particular, the impact energy is mainly absorbed through the deformation of corrugated steel webs in the fender. Pendulum impact tests are conducted to demonstrate the benefits of installing the corrugated steel web to increase the fender stiffness, engage more lateral displacement, and dissipate considerable impact energy. Advanced finite element (FE) models are established using the software LS-DYNA and verified against experimental results of the pendulum impact test. Modeling considerations are implemented into developing a high-resolution FE model to simulate full-scale truck–fender–bridge collisions, which discloses the fender’s effectiveness in protecting the bridge pier. The proposed fender system can mitigate the post-impact damage to the bridge pier by reducing its peak impact force, lateral displacement, and bending moment at the base. Moreover, parametric analyses are performed to investigate the effects of different fender design variables on the peak impact force and absorbed impact energy. Among various design parameters, the thicknesses of the corrugated steel web and surface steel plate are the predominant ones. Finally, an optimal fender design criteria is proposed to simultaneously minimize the impact damage to the bridge pier and the truck.
Highlights A novel corrugated steel fender is proposed to protect RC bridge pier against truck collision. Pendulum impact tests are performed to clarify the protection mechanism of the fender. The effectiveness of the proposed fender in mitigating the post-impact damage of bridge pier is verified. An optimal fender design criteria is proposed to simultaneously minimize the impact damage to bridge pier and truck.
A corrugated steel fender for bridge pier protection against truck collision
Zhou, Chang (Autor:in) / Xie, Yazhou (Autor:in) / Wang, Wenwei (Autor:in) / Zheng, Yuzhou (Autor:in) / Cao, Hongbin (Autor:in)
Thin-Walled Structures ; 189
04.06.2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Bridge pier anti-collision fender and mounting method
| Europäisches Patentamt | 2022