TY - JOUR
T1 - In-situ dynamic loading test of a hybrid continuous arch bridge
AU - Gou, Hongye
AU - Li, Liang
AU - Hong, Yu
AU - Bao, Yi
AU - Pu, Qianhui
N1 - Publisher Copyright:
Copyright © 2021 Techno-Press, Ltd.
PY - 2021/3/25
Y1 - 2021/3/25
N2 - In this study, the dynamic behavior of a three-span hybrid continuous arch bridge under vehicle loading is investigated. The natural vibration characteristics of the bridge were analyzed through pulsation test. In the dynamic loading test, the vibrations of the bridge under different truck speeds and different pavement conditions were tested, and time histories of deflection and acceleration of the bridge were measured. Based on the dynamic loading test, the impact coefficient was analyzed. The results indicate that the pavement smoothness had more impacts on the vibration of the bridge than the truck’s speed. The vertical damping of the bridge under the excitation of the trucks is larger than the transverse damping. Resonance occurs at the side span of the bridge under a truck at 10 km/h.
AB - In this study, the dynamic behavior of a three-span hybrid continuous arch bridge under vehicle loading is investigated. The natural vibration characteristics of the bridge were analyzed through pulsation test. In the dynamic loading test, the vibrations of the bridge under different truck speeds and different pavement conditions were tested, and time histories of deflection and acceleration of the bridge were measured. Based on the dynamic loading test, the impact coefficient was analyzed. The results indicate that the pavement smoothness had more impacts on the vibration of the bridge than the truck’s speed. The vertical damping of the bridge under the excitation of the trucks is larger than the transverse damping. Resonance occurs at the side span of the bridge under a truck at 10 km/h.
KW - Arch bridge
KW - Dynamic response
KW - Impact coefficient
KW - Pavement condition
KW - Truck loading test
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U2 - 10.12989/sem.2021.77.6.809
DO - 10.12989/sem.2021.77.6.809
M3 - Article
AN - SCOPUS:85103655630
SN - 1225-4568
VL - 77
SP - 809
EP - 817
JO - Structural Engineering and Mechanics
JF - Structural Engineering and Mechanics
IS - 6
ER -