Construction stage analysis of three-dimensional cable-stayed bridges

Atmaca, Barbaros; Ateş, Şevket

doi:10.12989/scs.2012.12.5.413

Cited by 22 publications

(9 citation statements)

References 4 publications

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“…e construction scheme investigated in this study was considered a sliding formwork with a combination of the stress state of the main girder and control the main tower. e bridge was constructed via forward installation method [19][20][21][22]. In the finite element analysis, the cable was simulated by the truss unit only; the tower was simulated by the beam element.…”

Section: Establishment Of Finite Elementmentioning

confidence: 99%

PC Cable‐Stayed Bridge Main Girder Shear Lag Effects: Assessment of Single Cable Plane in Construction Stage

Sun

Bao

2020

Advances in Materials Science and Engineering

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A model test and finite element analysis were conducted in this study to determine the distribution law of shear lag effect in the main beam section, a box girder, during the cable-stayed bridge construction process. The experimental and theoretical results were compared in an example of loading the control section. The stress value of the cable tension area of the main beam upper edge was found to markedly change when tensiling the cable force and was accompanied by prominent shear lag effect. After a hanging basket load was applied, the main beam of certain sections showed alternating positive and negative shear lag characteristics. The shear lag distribution law in the box girder of the single-cable-plane prestressed concrete cable-stayed bridge along the longitudinal direction was determined in order to observe the stress distribution of the girder. The results show that finite element analysis of the plane bar system should be conducted at different positions in the bridge under construction; the calculated shear lag coefficient of the cable force acting at the cable end of the cantilever reflects the actual force. In the beam segments between the cable forces, the shear lag coefficient determined by the ratio of the bending moment to the axial force reflects the actual stress at the cable force action point. In the midspan beam section between the action points of cable forces, the shear lag coefficient of the bending moment reflects the actual stress. The section shear lag coefficient can be obtained by linear interpolation of the beam section between the cable action point and the middle of the span.

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Section: Establishment Of Finite Elementmentioning

confidence: 99%

PC Cable‐Stayed Bridge Main Girder Shear Lag Effects: Assessment of Single Cable Plane in Construction Stage

Sun

Bao

2020

Advances in Materials Science and Engineering

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“…The concrete deck is happen large cross section and heavy, while the steel deck is happen smaller cross section and lighter. Concrete and steel decks are widely used in suspension bridges (Atmaca, 2012).…”

Section: Deckmentioning

confidence: 99%

Research of Cost Effect of Openness and Deck Material in Suspension Bridges

Farhad

Köken²

2018

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Recently, the following rapid development of the national economy and the advancement of communication and transportation, the construction of Long-Span Suspension Bridges have been increasing gradually. Long-Span Suspension Bridges are greatly preferred by engineering designers rather than other bridges equipped with construction supporting systems, not only for economic reasons, but also Long-Span suspension bridges are in the possession of advanced construction techniques when we deal with long distances, for Long-Span suspension bridges acquire supporting constructions features rigged with main cables and ropes. Long-Span suspension bridges are bridge constructions included with cable systems and under strong nonlinear factor effects, which the more the suspension increases, the more the bridges construction lightens, and the more the flexibility grows. There is a lot differences shown in the cost of the Suspension bridges according to different opening. The effect of the deck material is like the effect of the openness. The cost of the suspension bridge in the world is to be discussed too, so the cost is to investigate the effect of opening the drawbridge. The cost of suspension bridges in the world is very controversial, so investigating the financial effect of openness and deck material on suspension bridges is required. In this study, a three-dimensional model of the main cable, suspension rope, deck and tower elements of suspension bridge system by using CSI Bridge Program was constructed and numerical analysis was carried out. The standards used in analysis and design are used the AASHTO LRFD standard, which is common in the world. Suspension bridges of 250, 500, 750, 1000, 1500, 2000 meters were analyzed and designed in different deck material and openings. The material and cost of the suspension bridges have been investigated. The costs according to the openness and deck material of Suspension bridges have been shown by the obtained results.

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“…Essentially, the gravity stiffness steams from the geometric nonlinearity, which strongly depends on the configuration and internal force of the main cable. However, the shape of the main cable should be prescribed accounting for the effects of all external forces, which is always unable to be amended during the construction [2]. The configuration or target shape for the main cable at the initial equilibrium state under dead loads due to the self-weights of the bridge should be predetermined at the preliminary design stage.…”

Section: Introductionmentioning

confidence: 99%

A Novel Shape Finding Method for the Main Cable of Suspension Bridge Using Nonlinear Finite Element Approach

Wei

Fang

et al. 2021

Applied Sciences

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The determination of the final cable shape under the self-weight of the suspension bridge enables its safe construction and operation. Most existing studies solve the cable shape segment-by-segment in the Lagrangian coordinate system. This paper develops a novel shape finding method for the main cable of suspension bridge using nonlinear finite element approach with Eulerian description. The governing differential equations for a three-dimensional spatial main cable is developed before a one-dimensional linear shape function is introduced to solve the cable shape utilizing the Newton iteration method. The proposed method can be readily reduced to solve the two-dimensional parallel cable shape. Two iteration layers are required for the proposed method. The shape finding process has no need for the information of the cable material or cross section using the present technique. The commonly used segmental catenary method is compared with the present method using three cases study, i.e., a 1666-m-main-span earth-anchored suspension bridge with 2D parallel and 3D spatial main cables as well as a 300-m-main-span self-anchored suspension bridge with 3D spatial main cables. Numerical studies and iteration results show that the proposed shape finding technique is sufficiently accurate and operationally convenient to achieve the target configuration of the main cable.

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Construction stage analysis of three-dimensional cable-stayed bridges

Cited by 22 publications

References 4 publications

PC Cable‐Stayed Bridge Main Girder Shear Lag Effects: Assessment of Single Cable Plane in Construction Stage

PC Cable‐Stayed Bridge Main Girder Shear Lag Effects: Assessment of Single Cable Plane in Construction Stage

Research of Cost Effect of Openness and Deck Material in Suspension Bridges

A Novel Shape Finding Method for the Main Cable of Suspension Bridge Using Nonlinear Finite Element Approach

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