Stress Analysis of a Long-Span Steel-Truss Suspension Bridge under Combined Action of Random Traffic and Wind Loads

Han, Yan; Li, Kai; He, Xuhui; Chen, Suren; Xue, Fanrong

doi:10.1061/(asce)as.1943-5525.0000843

Cited by 16 publications

(5 citation statements)

References 21 publications

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“…Compared with field test, numerical analysis on VBCV could be used to explore various loading scenarios and bridge conditions with a lower cost (Chen and Wu, 2009; Deng and Cai, 2010). In the past researches, numerical simulations on VBCV have been performed by many researchers (Han et al, 2018; Yau and Yang, 2008; Zhang and Cai, 2013). In this study, the modal superposition and coupled method is employed to establish the VBCV analysis model for curved bridge.…”

Section: Vbcv Numerical Model For Curved Bridgementioning

confidence: 99%

Dynamic performance of a concrete-filled steel tube high-pier curved continuous truss girder bridge due to moving vehicles

Zhang

2018

Advances in Structural Engineering

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The dynamic performance of a new type of concrete-filled steel tube high-pier curved continuous truss girder bridges under moving vehicles is studied combining field testing and numerical simulation method by an actual bridge example. The dynamic response data were obtained before opening to traffic for the bridge under moving testing vehicles. A three-dimensional vehicle and bridge coupled vibration analysis model for curved bridges is proposed and validated. The dynamic behavior characteristics and vehicular ride comfort for this new type bridge are studied considering variable road surface and other conditions. The results indicate that the dynamic impacts of this bridge from vehicles are underestimated compared with those defined in the design code. In addition, the dynamic impact factors vary significantly for the local components and some of them could exceed the design value. Finally, the riding comfort of this bridge is evaluated, which suggests a fairly uncomfortable condition.

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Section: Vbcv Numerical Model For Curved Bridgementioning

confidence: 99%

Dynamic performance of a concrete-filled steel tube high-pier curved continuous truss girder bridge due to moving vehicles

Zhang

2018

Advances in Structural Engineering

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“…Mature construction methods include the deck crane construction method [16], and the cable crane construction method, among others [8,9]. Rail cable shifting (RCS) is a new, recently invented method, and it was firstly used in the successful erection of the girder of the Aizhai Bridge [17][18][19][20][21][22][23]. The erection of the 1000.5-m steel truss girder required only two and a half months [16].…”

Section: Introductionmentioning

confidence: 99%

Form-Finding Analysis of the Rail Cable Shifting System of Long-Span Suspension Bridges

Pan

Yan

2018

Applied Sciences

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The determination of the non-loading condition of the rail cable shifting (RCS) system, which consists of the main cables, hangers, and rail cables, is the premise of girder erection for long-span suspension bridges. An analytical form-finding analysis model of the shifting system is established according to the basic assumptions of flexible cable structures. Herein, the rail cable is discretized into segmental linear cable elements and the main cable is discretized into segmental catenary elements. Moreover, the calculation and analysis equations of each member and their iterative solutions are derived by taking the elastic elongation of the sling into account. In addition, by taking the girder construction of the Aizhai suspension bridge as the engineering background, a global scale model of the RCS system is designed and manufactured. The test system and working conditions are also established. The comparison between the test results and analytical results shows the presented analytical method is correct and effective. The process is simplified in the analytical method, and the computational results and precision satisfy practical engineering requirements. In addition, the proposed method is suitable for application in the computation analysis of similar structures.

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“…The mature construction methods include the deck crane construction method [16], the cable crane construction method, among others [8][9]. The rail cable shifting (RCS) is a recently invented new method, and it was firstly used in the successful erection of the girder of Aizhai Bridge [17][18][19][20][21][22][23]. The erection of the 1000.5m steel truss girder needed only two and a half months [16].…”

Section: Introductionmentioning

confidence: 99%

Form-Finding Analysis on the Rail Cable Shifting System of the Long Span Suspension Bridges

Quan¹,

Donghuang²,

Yi³

2018

Preprint

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The determination of the non-loading condition of the rail cable shifting (RCS) system, which consists of main cables, hangers and rail cables, is the premise of the girder erection for the long-span suspension bridges. An analytical form-finding analysis model of shifting system is established according to the basic assumptions of flexible cable structures. Herein, the rail cable is discretized into segmental linear cable elements and the main cable is discretized into segmental catenary elements. Moreover, the calculation and analysis equation of each member and their iterative solutions are derived by taking the elastic elongation of the sling into account. In addition, by taking the girder construction of Aizhai suspension bridge as engineering background, a global scale model of the RCS system is designed and manufactured; also the test system and working conditions are established. The comparison between the test results and analytical results shows the presented analytical method is correct and effective. The process is simplified in the analytical method, and the computational results and precision can satisfy the practical engineering requirements. In addition, the proposed method is suitable to apply to the computation analysis of similar structures.

show abstract

Stress Analysis of a Long-Span Steel-Truss Suspension Bridge under Combined Action of Random Traffic and Wind Loads

Cited by 16 publications

References 21 publications

Dynamic performance of a concrete-filled steel tube high-pier curved continuous truss girder bridge due to moving vehicles

Dynamic performance of a concrete-filled steel tube high-pier curved continuous truss girder bridge due to moving vehicles

Form-Finding Analysis of the Rail Cable Shifting System of Long-Span Suspension Bridges

Form-Finding Analysis on the Rail Cable Shifting System of the Long Span Suspension Bridges

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