scholarly journals Seismic response analysis of high-pier long-span continuous rigid-frame bridges under far-field long-period ground motions

2021 ◽  
Vol 638 (1) ◽  
pp. 012072
Author(s):  
Wang Yanan ◽  
Tang Guangwu ◽  
Liu Haiming ◽  
Liu Yonghui ◽  
Peng Bin
Keyword(s):  
Seismic Response ◽  
Ground Motions ◽  
Response Analysis ◽  
Far Field ◽  
Seismic Response Analysis ◽  
Long Period ◽  
Long Span ◽  
Rigid Frame ◽  
High Pier

scholarly journals Simulation of the In Situ Spatially Varying Ground Motions and Nonlinear Seismic Response Analysis of the Cable-Stayed Bridge

2020 ◽  
Vol 2020 ◽  
pp. 1-19
Author(s):  
Jin Zhang ◽  
Ke-jian Chen ◽  
Neng-pan Ju ◽  
Shi-xiong Zheng ◽  
Hong-yu Jia ◽  
...  
Keyword(s):  
Seismic Response ◽  
Ground Motions ◽  
Element Model ◽  
Response Analysis ◽  
Seismic Response Analysis ◽  
Nonlinear Seismic Response ◽  
Cable Stayed Bridge ◽  
Long Span ◽  
Wave Effects

To study the nonlinear seismic behavior and seismic resistance of the long-span cable-stayed bridges subjected to earthquakes, the multidimensional and multisupported artificial ground motions are synthesized first based on the in situ site conditions of the bridge considering the coherent and traveling wave effects. Then, considering the material nonlinearity of the cable-stayed bridge, a 3D finite element model is established based on the OpenSees platform, and the nonlinear seismic response analysis of the bridge is carried out under the synthetic artificial ground motions. The nonlinear seismic response of main bridge components such as piers, towers, bearings, and cables is analyzed, and key conclusions and observations are drawn.

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 High Pier and Long Span Rigid Framed Bridge under Non Uniform Excitation

2012 ◽  
Vol 193-194 ◽  
pp. 1315-1319 ◽  
Author(s):  
Can Bin Yin ◽  
Fang Yu
Keyword(s):  
Seismic Response ◽  
Horizontal Displacement ◽  
Travelling Wave ◽  
Bridge Piers ◽  
Response Analysis ◽  
Seismic Response Analysis ◽  
Long Span ◽  
Wave Effects ◽  
High Pier ◽  
Travelling Wave Effect

Taking the Longtan River Bridge as the engineering background , the seismic response analysis of high-pier and long-span continuous rigid-framed bridge considering travelling wave effect is simulated by means of the great mass method . Conclusions are drawn under asynchronous and synchronous excitation respectively , between which comparison indicates that the seismic responses for the main beams of continuous rigid-framed bridge are decreased at various degrees , such as the longitudinal horizontal displacement . The travelling wave effects on the piers are also related to the characteristics and locations of the bridge piers and so on .

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