Seismic response analysis of long-span rigid frame bridge with high-rising piers subjected to near-fault earthquake

2021 ◽  
pp. 3425-3430
Author(s):  
Y.P. Zeng ◽  
K.J. Chen ◽  
J. Dong ◽  
G.J. Yang
Keyword(s):  
Seismic Response ◽  
Response Analysis ◽  
Seismic Response Analysis ◽  
Near Fault ◽  
Long Span ◽  
Rigid Frame ◽  
Rigid Frame Bridge

Seismic Response Analysis on Continuous Rigid-Frame Bridges with High Piers Based on Fiber Model

2012 ◽  
Vol 446-449 ◽  
pp. 3710-3713
Author(s):  
Kai Wu Jia ◽  
Ming Quan Liu ◽  
Xi Min Song ◽  
Hong Zhen Kang
Keyword(s):  
Seismic Response ◽  
Shear Force ◽  
Travelling Wave ◽  
Response Analysis ◽  
Fiber Model ◽  
2008 Wenchuan Earthquake ◽  
Nonlinear Seismic Response ◽  
Long Span ◽  
Rigid Frame ◽  
Rigid Frame Bridge

In this paper, with the help of program Thufiber, fiber model is used to simulate bridge piers, solid element is used to simulate the superstructure in program MSC.Marc. The effects of the travelling wave on the nonlinear seismic response of the long-span continuous rigid-frame bridge with high piers are analyzed under 2008 Wenchuan Earthquake Wave excitation. The results show that travelling wave has much effect on displacement and shear force of high piers of the bridge. The displacement of the pier top decreases 20% to 50% and the shear force at the pier base increases from 20% to 30%.

Seismic Response Analysis of Partial Curve Long-Span Rigid Frame Bridge with Super High Pier

2011 ◽  
Vol 308-310 ◽  
pp. 1314-1321
Author(s):  
Yang Liu ◽  
Da Wang ◽  
Min Hai Chen
Keyword(s):  
Seismic Response ◽  
Seismic Performance ◽  
Great Influence ◽  
Time History ◽  
Dynamical Stability ◽  
Response Analysis ◽  
Long Span ◽  
Rigid Frame ◽  
High Pier ◽  
Rigid Frame Bridge

Based on the time history analysis method, some curve long-span rigid frame bridge with super high pier in Sichuan was taken as the studying case, and a studying of natural vibration characteristics and seismic response. Comparative study was emphasis carried on seismic performance between the partial curve bridge and the straight. In addition, the exhaustive research to about between crosswise relation to the structure overall rigidity contribution and to the structure and the seismic performance influence is conducted. The conclusion of the study shows that the seismic performance of the straight long-span rigid frame bridge with super high pier is surpassing the curve bridge. The curve linear has little influence to the base frequency of this kind of structure, and The rigidity is mainly effected by the bridge pier. If additionally builds the crosswise relation between the structure, the dynamic characteristic of the structure will be improved greatly. The height of this type bridge has great influence on the dynamical stability, the height is lower and the dynamical stability is better, which is more advantageous to the structure seismic behavior.

Seismic Response Analysis of CFST Arch Bridge Considering Input Earthquake Characteristics

2011 ◽  
Vol 255-260 ◽  
pp. 962-966
Author(s):  
Fan Xing ◽  
Lin Zhao ◽  
Ya Zhe Xing
Keyword(s):  
Seismic Response ◽  
Research Result ◽  
Steel Tube ◽  
Response Analysis ◽  
Vibration Period ◽  
Arch Bridge ◽  
Near Fault ◽  
Long Span ◽  
Cfst Arch Bridge ◽  
Out Of Plane

In view of huge destructibility of the near-fault ground motions, structures with long natural vibration period are liable to fall into nonlinear reaction stage. Based on a full understanding of the near-fault seismic spectrum characteristics, the out-of-plane seismic response of a long span concrete-filled steel tube (CFST) arch bridge was studied in depth, and the research result could offer a reference for near-fault aseismic design.

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