The Seismic Response Analysis of Long-Span Cable-Stayed Bridge

2014 ◽  
Vol 501-504 ◽  
pp. 1364-1367
Author(s):  
Yong Zhe Niu ◽  
Wen Jie Guo ◽  
Guang Ling Li ◽  
Rui Xin Sun
Keyword(s):  
Seismic Response ◽  
Lateral Displacement ◽  
Response Spectrum ◽  
Three Dimensional ◽  
Vertical Displacement ◽  
Response Analysis ◽  
Element Analysis ◽  
Cable Stayed Bridge ◽  
Long Span ◽  
Seismic Property

Anti-seismic property was essential in the progress of bridge designing and construction due to destructive power of earthquake disaster and increasing span of bridge. This paper elaborated theory method of analysis, taking five spans continuous cable-stayed bridge which was half floating system as an engineering background, and using method of special finite element analysis to calculating dynamic characteristics and seismic response respectively which also considered longitudinal limit damping and stiffness of cable under longitudinal, transverse, vertical and three-dimensional seismic oscillation. Fundamental frequency of cable-stayed bridge was affected significantly with considering longitudinal limit damping, so connection measures would be determined reasonably in designing and analyzing anti-seismic property of long-span cable-stayed bridge. When response spectrum analysis was adopted, longitudinal and vertical displacement were larger than lateral displacement under longitudinal seismic oscillation, lateral seismic oscillation only affected the structural lateral displacement, and vertical seismic oscillation affected vertical and longitudinal displacement.

Seismic Response Analysis of the Semi-Floating System of Long Span Cable-Stayed Bridge

2013 ◽  
Vol 361-363 ◽  
pp. 1302-1305
Author(s):  
Qing Zhao
Keyword(s):  
Seismic Response ◽  
Seismic Waves ◽  
Response Spectrum ◽  
Calculation Model ◽  
Response Analysis ◽  
Element Analysis ◽  
Cable Stayed Bridge ◽  
Long Span ◽  
Floating System ◽  
Space Beam Element

According to the seismic performance of cable-stayed bridge with a project example, using finite element analysis method, establishing the space beam element and link element calculation model, the dynamic characteristic and the seismic response of the cable-stayed bridge with selected three earthquake waves were calculated, the results were compared with the of the response spectrum method.The results show that:the semi-floating system of cable-stayed bridge is great flexibility, the vibration cycle is generally longer; the results by using the response spectrum method are smaller; the cable-stayed bridge should be calculated in accordance with the specific circumstances of the project with multiple seismic waves.

Seismic Response Analysis to Half Floating System of Cable-Stayed Bridge

2014 ◽  
Vol 619 ◽  
pp. 81-90
Author(s):  
Xiu Yun Gao ◽  
Yi Tan Jiang
Keyword(s):  
Seismic Response ◽  
Response Spectrum ◽  
Time History ◽  
Nonlinear Time History Analysis ◽  
Response Analysis ◽  
Analysis Method ◽  
Element Analysis ◽  
Design Data ◽  
Cable Stayed Bridge ◽  
Floating System

According to the Chaoyang town east bridge design data, build the model with finite element analysis method. Based on two levels fortification, two stage design ideas of seismic design, modal response spectrum and seismic response of the nonlinear time history analysis method are used respectively. The nonlinear effect of the boundary conditions are considered in the analysis process, and the seismic response of the cable-stayed bridge is obtained, providing bases and presenting methods for aseismic design of Chaoyang town east bridge.

Effect of Pile-Soil-Structure Interaction on the Cable-Stayed Bridge in Response to the Earthquake

2014 ◽  
Vol 539 ◽  
pp. 731-735 ◽  
Author(s):  
Yu Chen
Keyword(s):  
Finite Element ◽  
Seismic Response ◽  
Soil Structure ◽  
Response Spectrum ◽  
Three Dimensional ◽  
Soil Structure Interaction ◽  
Structure Interaction ◽  
Finite Element Software ◽  
Cable Stayed Bridge ◽  
Three Dimensional Finite Element

In this thesis, based on the design of a 140+90m span unusual single tower and single cable plane cable-stayed bridge, free vibration characteristics and seismic response are investigated; three dimensional finite element models of a single tower cable-stayed bridge with and without the pile-soil-structure interaction are established respectively by utilizing finite element software MIDAS/CIVIL, seismic response of Response spectrum and Earthquake schedule are analyzed respectively and compared. By the comparison of the data analysis, for small stiffness span cable-stayed bridge, the pile-soil-structure interaction can not be ignored with calculation and analysis of seismic response.

Seismic Response Analysis of the Numerical Simulation Method on Cable-Stayed Bridge Tower which Considers the Rigid Foundation

2014 ◽  
Vol 875-877 ◽  
pp. 998-1002
Author(s):  
Wei Bing Luo ◽  
Ji Ming Fan ◽  
Ji Lv ◽  
Li Ya Zhang ◽  
Cui Cui Wu
Keyword(s):  
Seismic Response ◽  
Ground Motions ◽  
Simulation Method ◽  
Response Analysis ◽  
Rigid Foundation ◽  
Seismic Responses ◽  
Near Fault ◽  
Cable Stayed Bridge ◽  
Long Span ◽  
Bridge Tower

The seismic responses under the action of far-fault and near-fault ground motions of the bridge tower structure of the long-span cable-stayed bridge are numerically discussed by means of the model of the bottom consolidation of the column. The results show that the responses of tower of the cable-stayed bridge correlate well with the properties of the ground motions. The seismic responses of the model have much larger values under the near-fault velocity pulse-like ground motions than those of the counterpart. The frequency of system reduces as the flexibility of structure decreases because of the rigid foundation; The displace response of tower shows that the rigid foundation has little influence on the seismic response of the cable-stayed bridge, while the acceleration response of the tower implies that rigid foundation has adverse effect. Thus, consideration of the soil-pile-superstructure interaction can be meaningful both in theory and reality during the seismic design of long-span cable-stayed bridge structure.

Space Seismic Response Analysis of City Elevated Curved Box Girders Bridge

2011 ◽  
Vol 255-260 ◽  
pp. 1096-1101
Author(s):  
Qing Zhao
Keyword(s):  
Seismic Response ◽  
Three Dimensional ◽  
Time History ◽  
Internal Force ◽  
Response Analysis ◽  
Box Girders ◽  
Element Analysis ◽  
History Analysis ◽  
The Finite Element Analysis ◽  
Time History Response

Taking an engineering design case about a city elevated curved box girders bridge, the dynamic calculating model of the curved box girders bridge is created by the finite element analysis program ANSYS. The analysis of curved box girders bridge with space seismic response are discussed, and a time history analysis is conducted for the curved box girders bridge subjected to the E1 Centro earthquake waves in two conditions.The internal force and the displacement time history response curve of the curved box girders bridge are obtained. The results indicate that the seismic response of curved box girders bridge with three-dimensional earthquake are bigger than two-dimensional, and consider the vertical seismic have considerable influence on the axial force of bridge piers, the internal force and displacement of box girders.

The Cable-Stayed Bridge with the T - Structure Collaborative System Bridge Seismic Response Analysis

2012 ◽  
Vol 594-597 ◽  
pp. 1762-1765
Author(s):  
Bao Chu Yu ◽  
Da Yong Zhang ◽  
Shao Xia Gao ◽  
Xiao Cheng Tang
Keyword(s):  
Seismic Response ◽  
Vibration Mode ◽  
Response Spectrum ◽  
Paper Analysis ◽  
Combination Method ◽  
Seismic Resistance ◽  
Response Analysis ◽  
Cable Stayed Bridge ◽  
Rigid Frame ◽  
Main Bridge

The main bridge of Guangdong jinma which is double cable planes concrete single tower cable-stayed bridge and T- rigid frame cooperative system,and causing great concern to the project owing to the practice successfully[1,2,3,4].This paper analysis Jinma Bridge with response spectrum method of seismic response in accordance with the objectives of the three standards of seismic resistance requirements .In order to ensure the calculation accuracy,before the previous 120 vibration mode superposition should be taken by adopting CQC（Complete Quadratic Combination）method in calculation of the response spectrum.

Seismic Response Analysis of Multi-Span Cable-Stayed Bridge

2008 ◽  
Vol 400-402 ◽  
pp. 737-742 ◽  
Author(s):  
Guo Jing He ◽  
Zhong Quan Zou ◽  
Yi Qing Ni ◽  
Jin Ming Ko
Keyword(s):  
Seismic Response ◽  
Three Dimensional ◽  
Element Model ◽  
Response Analysis ◽  
Local Modes ◽  
Cable Stayed Bridge ◽  
Characteristics Analysis ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element ◽  
Dynamic Characteristics Analysis

Based on the dynamic characteristics analysis results of a precise three-dimensional finite element model, the earthquake responses of the bridge are analyzed in this paper. The influences of cable local modes and stabilizing cables on the seismic response are investigated by using different mode combinations and different models. It is found that the influence of cable local modes is negligible on the side towers while significant and not negligible on the main tower; the influence of the stabilizing cables is significant and not negligible on side towers, while minor and negligible on the main tower. As for the deck displacements, the influence of cable local modes is minor and negligible, while that of longitudinal stabilizing cables is significant and not negligible.

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