Optimization Analysis of Cable Tensions for Suspension Erection of Long-Span CFST Arch Bridge

2009 ◽  
Author(s):  
Jianjun Wei ◽  
Chuanfu Li
Keyword(s):  
Optimization Analysis ◽  
Arch Bridge ◽  
Long Span ◽  
Cfst Arch Bridge

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.

Calculation of Cable Force for Long-Span Rib Arch Bridge Construction under Seasonal Ambient Temperature

2011 ◽  
Vol 378-379 ◽  
pp. 341-344
Author(s):  
Wei Feng Tian ◽  
Shui Xing Zhou ◽  
Ayad Thabet Saeed Alghabsha
Keyword(s):  
Ambient Temperature ◽  
Control Method ◽  
Difficult Problem ◽  
State Control ◽  
Optimization Analysis ◽  
Arch Bridge ◽  
Long Span ◽  
Unstressed State ◽  
Cable Force ◽  
Cable Forces

Calculation of cable force under seasonal ambient temperature is the key and difficult problem in the construction of long-span rib arch bridge. It affects the final cable forces and deformations of arch rib after arch closure. Unstressed state control method is introduced in the construction of Daning River Bridge; unstressed qualities of ribs and unstressed length of cables can be obtained by optimization analysis of the maximum cantilever state in construction. According to unstressed state control method, the cable forces of each segment were calculated using the forward-iteration method. These results offer the basis for construction control, and guarantee the arch rib line and cable forces to meet the design requirements, and an arch closure with high precision.

scholarly journals Research on seismic isolation control of long-span mid-supported CFST arch bridge

2018 ◽  
Vol 439 ◽  
pp. 042066
Author(s):  
Hou Chao ◽  
Zhong Tieyi ◽  
Xincheng Chen ◽  
Hongbin Li ◽  
Jiawei Wang
Keyword(s):  
Seismic Isolation ◽  
Arch Bridge ◽  
Long Span ◽  
Cfst Arch Bridge

Stability Analysis during Concrete Pumping for a CFST Arch Bridge Rib

2012 ◽  
Vol 446-449 ◽  
pp. 1199-1202
Author(s):  
Yan Jiang Chen ◽  
Xiao Qiang Ren ◽  
Jin Jie Wang ◽  
Da Peng Gu
Keyword(s):  
Stability Analysis ◽  
Modeling Method ◽  
Construction Control ◽  
Construction Process ◽  
Fem Model ◽  
Arch Bridge ◽  
Long Span ◽  
Cfst Arch Bridge ◽  
Concrete Pumping ◽  
The Stability

Abstract. This paper lists the problems during the stability analysis of long span CFST arch bridge and the corresponding modeling method. Based on the construction control of an orthotropic long span CFST arch bridge, a FEM model had been established to analysis the stability of its rib during the concrete pumping. The conclusion shows significant importance to the bridge’s construction process.

Seismic Testing of a Long-Span Concrete Filled Steel Tubular Arch Bridge

2010 ◽  
Vol 456 ◽  
pp. 89-102 ◽  
Author(s):  
Wei Ming Yan ◽  
Yong Li ◽  
Yan Jiang Chen
Keyword(s):  
Dynamic Performance ◽  
Internal Force ◽  
Shaking Table ◽  
Structural System ◽  
Arch Bridge ◽  
Seismic Testing ◽  
Response Characteristics ◽  
Long Span ◽  
Bridge Model ◽  
Cfst Arch Bridge

Long-span bridges are always a multi-support structural system, and seismic ground motion can vary significantly over distances comparable to the length of such kind of bridges, so it’s difficult to carry out shaking table tests because of the restriction of the dimension and amount of shaking tables. This paper discusses the multiple sub-table cordwood system is used to conduct a study on the seismic testing of a three-span irregular Concrete filled steel tubular (CFST) arch bridge with the objective of investigating the dynamic performance of the bridge under spatial earthquake motions. The development and testing of the bridge model and selected experimental results are discussed then. The seismic response and response characteristics of acceleration, displacement, internal force, and strain of the structure under earthquake excitations are gained, which can provide test data and basis to evaluate the seismic performance of this CFST arch bridge or other similar structural system design.

Design and Optimization of Concrete-Filled Steel Tube Arch Bridge Using Cable-Hoisting Method

2011 ◽  
Vol 255-260 ◽  
pp. 896-900
Author(s):  
Xiao Fei Liang ◽  
Yue Xu ◽  
Hong Jing Du
Keyword(s):  
Steel Tube ◽  
Hunan Province ◽  
Construction Technology ◽  
Systematic Analysis ◽  
Arch Bridge ◽  
Design And Optimization ◽  
Long Span ◽  
Long Span Bridge ◽  
Cfst Arch Bridge ◽  
Hoisting System

Based on the hoisting construction feature of large hinge-support tower and field circumstance, the cable hoisting system for Meng-dong river grand bridge at the west of Hunan province is designed. Studying on cable hoisting system design and construction of the CFST arch bridge, the paper takes systematic analysis and calculations on the key construction technology of the CFST arch bridge, and puts it in practice successfully which provides experience for the similar long—span bridge construction of the follow.

Study on Transverse Synchronization Control for Super-Breadth and Long-Span Basket Handle Arch Bridge when Vertically Rotating

2013 ◽  
Vol 438-439 ◽  
pp. 917-922
Author(s):  
Zhi Wei Sun ◽  
Xiao Guang Wu
Keyword(s):  
Steel Tube ◽  
Synchronization Control ◽  
The Finite Element Method ◽  
Arch Bridge ◽  
Long Span ◽  
Maximum Value ◽  
Cfst Arch Bridge ◽  
The Difference ◽  
Arch Bridges ◽  
Main Arch

Monitoring and controlling of vertical construction for main arch ribs is most important for concrete-filled steel tube (CFST) arch bridges due to high risk. Controlling the difference of elevation between the two main arch ribs has direct influence on the mechanical behavior of lateral brace, towers and temporary hinges at arch abutments of main piers. Therefore, transverse synchronization control is the main priority in vertical rotating construction phase. Taking a half-through CFST arch bridge in Shijiazhuang City as an example, this paper make a study of transverse synchronization control of the two main arch ribs during vertical rotation. The finite element method (FEM) software-Midas is employed to simulate the main arch ribs in rotation construction phase, and maximum value of the difference of elevation between the two main arch ribs is obtained to offer reference and basis of vertical rotation construction of this bridge.

Stability Analysis of Long-span Deck-type CFST Arch Bridge

2007 ◽  
Vol 2 (1) ◽  
pp. 62-65
Author(s):  
He-qing Zhao ◽  
Liang Xu ◽  
Hui-lin Yang ◽  
Shi-zhong Liu
Keyword(s):  
Stability Analysis ◽  
Arch Bridge ◽  
Long Span ◽  
Cfst Arch Bridge

Response Spectrum Characteristics of Near-Fault Ground Motions and Influence to CFST Arch Bridge

2013 ◽  
Vol 671-674 ◽  
pp. 1367-1371
Author(s):  
Fan Xing ◽  
Rui Kang
Keyword(s):  
Response Spectrum ◽  
Ground Motions ◽  
Time History ◽  
Arch Bridge ◽  
Response Characteristics ◽  
Near Fault ◽  
Long Span ◽  
History Analysis ◽  
Cfst Arch Bridge ◽  
The Common

Near-fault ground motions are more complex than the common far field, and it can significantly change the response characteristics of the structure. The records of Taiwan chi-chi earthquake associating with velocity pulse are selected, and the seismic accelerate response spectrum of different site are studied in deep. On the basis of time-history analysis, the seismic responses of a long-span CFST (concrete-filled steel tubular) arch bridge are discussed. Weakness section of the CFST arch rib are also indicated, providing a valuable reference for aseismic design.

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