In recent years, vehicle-bridge pier collisions have become increasingly prevalent. However, as one of the most importance methods, vehicle collision testing on RC bridge piers remains scarce. Full-scale studies into the impact responses and damage patterns of RC piers have been notably lacking in actual truck collision tests, impeding the advancement of this research domain. To address this gap, a full-scale crash test using a medium-duty truck and an RC single-column pier with a diameter of 1 m was conducted. The truck has a mass of 7.76 t and collided at a speed of 81 km/h. The study extensively examined the damage and failure levels of both the vehicle and the RC pier, capturing critical data such as the displacement, velocity, and acceleration time histories of the truck, as well as the deflection, acceleration, and reinforcement strain time histories of the pier. Furthermore, by analyzing the accelerations of the cargo box and engine, approximate vehicular impact forces were derived and discussed. This work offers invaluable experimental data for vehicular collisions with RC bridge piers, particularly in the calibration and validation of FE models simulating truck collisions, as well as in evaluating the impact resistance of RC bridge piers. To further investigate the dynamic responses of such collisions, a refined FE model of a typical simply supported two-span double-pier RC bridge was developed and validated using the prototype truck-pier collision test and a full-scale drop-weight test on an RC beam. Through numerical simulations of 35 truck-bridge collision scenarios, the dynamic responses and collapse processes were thoroughly analyzed.
Prototype Test and Collapse Analysis of Simply-Supported RC Bridge
Springer Tracts in Civil Engineering
2024-08-20
45 pages
Article/Chapter (Book)
Electronic Resource
English
The resonant vibration for a simply supported girder bridge under high-speed trains
Online Contents | 1999
|