Research of Deformation and Stress of Long-Span Arch Bridge under the Effect of Shrinkage and Creep in the Construction Process

2012 ◽  
Vol 178-181 ◽  
pp. 2273-2276
Author(s):  
Jie Jun Wang ◽  
Qing Liang Zhu ◽  
Xiao Liang Peng
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Construction Process ◽  
Arch Bridge ◽  
Long Span ◽  
Shrinkage And Creep ◽  
Element Method

Considering the transformation of the system and the increasing of the load in the construction process of long-span arch bridge, combining with the definite engineering example and calculating the construction process of arch bridge by using finite element method,focusing on the analysis of deformation and stress of arch bridge under the effect of shrinkage and creep in the process of construction.

Analyze on Construction Status Long-Span Arch Rib Bridge by Numerical Simulation

2011 ◽  
Vol 480-481 ◽  
pp. 1318-1323
Author(s):  
Jiang Hao
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Construction Method ◽  
Bridge Construction ◽  
Actual Measurement ◽  
Arch Bridge ◽  
Long Span ◽  
Cable Force ◽  
Element Method

Non-cable hoisting frame is a construction method of the main arch ribs of big span bridge. The key issue in the numerical simulation of this type of bridge construction is geometric nonlinearity approach. Construction method of long-span bridge rib and stage-by-stage construction method of a arch bridge was simulated by finite element method. The geometric description was attained comparison with simulation results and the actual measurement of cable force. The results show that finite element method is effectively used in the simulation of long span arch bridge construction.

Application of Finite Element Method for Dry Masonry Overflow Dam Analysis

2013 ◽  
Vol 394 ◽  
pp. 332-335
Author(s):  
Min Tan
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Mechanical Characteristics ◽  
Simulation Analysis ◽  
Process Analysis ◽  
Construction Process ◽  
Distribution Law ◽  
Operational Process ◽  
Reservoir Construction ◽  
Element Method

Through analyzing dry masonry overflow dam structures mechanical characteristics in construction process and operational process, this paper adopts finite element method to carry out simulation analysis for dry masonry overflow dam of Daxilong reservoir. Deducing distribution law of the dams stress and displacement in construction process and operational process. Analysis results show that, dry masonry overflow dam of Daxilong reservoir construction is reasonable, it meets the requirements for design.

Study on Repairing and Strengthening Measures of Reinforced Concrete Truss Arch Bridge

2013 ◽  
Vol 340 ◽  
pp. 64-68
Author(s):  
Hai Yan Luo ◽  
Qi Li ◽  
Dan Zhao
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Reinforced Concrete ◽  
Maximum Stress ◽  
Stress Condition ◽  
Steel Reinforcement ◽  
Method Section ◽  
Arch Bridge ◽  
Element Method

This thesis takes reinforced concrete truss arch bridge---Nanchengzi River Bridge as an example, and adopts bonded steel reinforcement method, section increasing method and deck reinforcement method to reinforce this bridge. It also adopts finite element method to make a calculation and analysis of stress condition of this bridge after reinforcement, and gain the maximum stress value and span deflection of this bridge after reinforcement, so as to provide useful reference for the repairing and reinforcement of this reinforced concrete truss arch bridge.

Dynamic Response analysis of Long Span Transmission Tower under Tornado

2012 ◽  
Vol 450-451 ◽  
pp. 1257-1260
Author(s):  
Qiang Gao ◽  
Chao Ren ◽  
Yang Xu ◽  
Zhen Yao Liu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Dynamic Response ◽  
Dynamic Analysis ◽  
Wind Direction ◽  
Response Analysis ◽  
Transmission Tower ◽  
Dynamic Response Analysis ◽  
Long Span ◽  
Element Method

To study the effects of tornado on long span transmission tower, a model of the tower is built and the features of the tornado are considered. Three different wind cases are discussed in dynamic analysis with finite element method. The analysis results show that dynamic response is more significant at 45° wind direction.

Simulation Analysis Reinforced Concrete U-Shaped Aqueduct

2013 ◽  
Vol 394 ◽  
pp. 345-348
Author(s):  
Min Tan
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Reinforced Concrete ◽  
Simulation Analysis ◽  
Structure Design ◽  
Construction Process ◽  
Operational Process ◽  
Design Scheme ◽  
Scheme Analysis ◽  
Element Method

This paper adopts finite element method to carry out simulation analysis for Enzitan reinforced concrete U-shaped aqueduct. Deducing variation law of the aqueducts stress and displacement in construction process and operational process, researching the rationality of aqueduct structure design scheme. Analysis results show that, Enzitan reinforced concrete aqueduct structure is reasonable, force of aqueduct structure is explicit, it meets the requirements for design.

Rigid Joints Transferring Forces outside Box Columns with Deviation of Column's Location Axis-Finite Element Method Simulation

2014 ◽  
Vol 1065-1069 ◽  
pp. 1101-1105
Author(s):  
Zhong Gen Xu ◽  
Guang Xian Liang ◽  
Wei Ming Chen ◽  
Chang Gen Deng
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Steel Structure ◽  
Finite Element Method Simulation ◽  
Construction Process ◽  
Rigid Joints ◽  
Ultimate Carrying Capacity ◽  
The Impact ◽  
Box Columns ◽  
Element Method

location axis, joints, force-transforming plates, carrying capacityAbstract: Steel structure has been widely used all over the world. In actual construction process, steel structure inevitably has initial defects, which may have bad influences on its performance. Three groups of specimens were designed in this paper to compare the performance of rigid joints transferring forces outside box columns to that of perfect traditional joints and that of traditional joints with uniaxial and biaxial deviation of column's location axis by finite element method program ANSYS. From the analysis of stiffness, yielding capacity, and ultimate carrying capacity, the impact of force-transforming plates can be evaluated. The adding force-transforming plates were helpful to reduce the influence from column imperfect.

Study on Stability of Arch Bridge by Finite Element Method

2012 ◽  
Vol 193-194 ◽  
pp. 592-595
Author(s):  
Xiao Xin Yan ◽  
Chun Xia Zhang ◽  
Liang Hua Zhao ◽  
Bao Ping Cao
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Nonlinear Finite Element ◽  
New Materials ◽  
Continuous Increase ◽  
Arch Bridge ◽  
Linear And Nonlinear ◽  
Partial Rigidity ◽  
Element Method

Arch is a structure suffers press mainly, and the problem of stability is very standout. As the continuous increase of arch’s spanning capability, application of new materials, arch structural integral and partial rigidity comparative declines and makes the problem of arch’s stability even more standout. In this article, through study on stability of arch bridge by finite element method, we discussed arch bridge’s linear and nonlinear finite element solve method.

Research on the Stability of Erecting of Pre-Cast Segmental Box Girders with SPZ1300/48 Gantry

2010 ◽  
Vol 163-167 ◽  
pp. 828-833
Author(s):  
Zhi Xing Sun ◽  
Shi Tong Chen ◽  
Hong Wei Xu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Transition Process ◽  
Construction Process ◽  
Box Girders ◽  
Overall Stability ◽  
Strong Winds ◽  
Bad Weather ◽  
The Stability ◽  
Element Method

In the present paper the whole structure and the construction process of SPZ1300/48 gantry is introduced and the stability of the gantry under lifting process and transition process is also analyzed by some reliable finite element method software. By the analysis of the overall stability of the structure, taking into account the bad weather (strong winds) in the region, in the case of lifting process and after the segments placed, the optimal lifting sequence of the beam segments on account of the stability of the structure itself is obtained. By this way a useful sample for analysis of similar systems is provided, and then a technical foundation is established for bridge constructions by segmental assembling method for larger span or tonnage.

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