Competing mechanism between vertical stiffness and anti-slip safety in double-cable multi-span suspension bridges

Chen, Yinggao; Zheng, Ke; Cheng, Zhenyu; Deng, Penghao; Zhang, Qinghua

doi:10.1080/15732479.2022.2107024

Cited by 5 publications

(5 citation statements)

References 27 publications

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“…Finite element analysis [4][5][6][7][8] of cable structures is widely used as a primary means of analyzing their safety and quality. Li et al [4] investigate a new cable-girder anchorage (CGA) structure for long-span hybrid cable-stayed suspension bridges, revealing its reasonable and reliable design, stress distribution, and cable load transfer pathway through a 1:2 scale specimen test and finite element analysis.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Liu et al [5] investigate the performance of a wedge-shaped clamp anchorage for CFRP lamella cables through finite element analysis and static tensile testing. Chen et al [6] used finite element analysis in order to investigate the effect of the main design parameters on the relationship between the deflected span ratio and the coefficient of safety against skidding. Traditional finite element analysis software often exhibits poor convergence, necessitating the division of the continuous construction process into discrete stages for simulation and analysis [7].…”

Section: Literature Reviewmentioning

confidence: 99%

See 1 more Smart Citation

Continuous Dynamic Analysis Method and Case Verification of Cable Structure Based on Digital Twin

Wang,

Li,

Liu

et al. 2023

Sustainability

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The safety and quality of cable structure construction necessitate a comprehensive analysis approach. However, conventional methods suffer from difficulties in the temporal and spatial integration of construction information and low efficiency in construction analysis. This study proposes a multi-dimensional digital twin model for cable structure construction to optimize conventional calculation methods. Firstly, this study proposes a continuous dynamic analysis method for cable structures based on the digital twin, which reveals the mechanism behind the continuous dynamic analysis of cable structures. Furthermore, a multidimensional digital twin model is established, and the model is continuously corrected using real-time data collected by sensors. The intrinsic constitution equation and equilibrium equation are also corrected to improve the finite element analysis method of the cable structure. An intelligent simulation system for cable structures was developed and effectively applied to actual cable structure construction scenarios. The same finite element analysis model was used to calculate all stages from lifting to tension forming. Construction information fusion ensured continuous dynamic analysis with an average calculation accuracy higher than 97%.

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Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Continuous Dynamic Analysis Method and Case Verification of Cable Structure Based on Digital Twin

Wang,

Li,

Liu

et al. 2023

Sustainability

View full text Add to dashboard Cite

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“…Furthermore, the previous studies also provided design suggestions for tower shapes, anchor locations, and deck cross-sections [10]. The mechanical performance, including vibration modes and natural frequencies of the complicated cable-supported bridges, was mainly obtained using nonlinear finite element (FE) analysis based on the cable element and its stiffness matrix [7,[11][12][13][14][15]. With expressive FE models, a great deal of analyses were conducted for the cable-stayed and suspension bridges under statistical vehicle loads [16], earthquakes [17], typhoons [18,19], and even fire risks [20].…”

Section: Introductionmentioning

confidence: 99%

Safety–Function–Environment Evaluation System for Large-Span Cable-Supported Bridges: Theory and Case Studies

Zhang,

Tan,

et al. 2024

Sustainability

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Compared with common bridges, large-span cable-supported bridges contain more components, are located in a more complex environment, and play a more important role in traffic system sustainability. Throughout the service life, it is more necessary to evaluate their safety, functionality, and environmental status. In this study, a comprehensive evaluation system is proposed to fill the gap using advanced sensor-guided structural health monitoring data and probability-based digital twins. Safety evaluation is the basis of the system and can be divided into overall and component levels. The former includes an over-limit analysis of main structural responses and degradation identification of dynamic characteristics. The abnormal areas discovered in this phase and the hot spots prompted by prior information during the design process will be checked in the latter. The functional assessment of this system is mainly based on checklist-type inspection and is often carried out together with appearance inspection and non-main structural component detection. Environmental assessment includes the monitoring and analysis of wind fields, temperature, humidity, foundation scour, and traffic flow and is the source of external information in the aforementioned two modules. The temperature and humidity of the example bridges are basically uniformly distributed along the spatial dimension, fluctuating over a period of one day.

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“…To date, many researchers have carried out several in-depth studies and research on the anti-slip function of the cable saddle [9][10][11][12]. Ye et al [13] proposed a combination of horizontal and vertical friction plates in the saddle groove and investigated the anti-slip problem between the saddle and the main cable in the main tower saddle of the Wenzhou Oujiang Beikou Bridge in China.…”

Section: Introductionmentioning

confidence: 99%

Characteristics Comparison and Case Study of Traditional Anti-Slip Saddles and Innovative Rolling Saddles in Highway Long-Span Bridges

Wan,

Liu,

Qian

2024

Applied Sciences

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The cable saddle structure is the main support component for long-span bridges to transmit cable force, which is of great significance for the structural force system. Nowadays, the main cable saddle structures used in long-span bridges are mainly traditional anti-slip saddles and innovative rolling saddles. To clarify the characteristics of the saddles in long-span bridges, the design principles, mechanical properties, and casting process of these two types of saddle structures were researched. A rolling saddle in a bridge project was taken as an example and its mechanical situation in the roller area was investigated. The results showed that the stress concentration phenomenon is prone to occurring in the rolling saddle because of the line contact in the contact area and the rolling saddle is mainly subjected to vertical force. Thus, attention should be paid to the von Mises stress in the contact area between the saddle base and the roller shaft, the lower surfaces of both ends of the roller shaft, and the top surface of the tower, to avoid material damage. Furthermore, the casting process of the anti-slip saddle structure is mature, but also faced with problems due to the welding of thick plates, and urgently needs to be improved and upgraded. The rolling saddle is used with the all-welded casting process, but its technology is relatively immature and the requirements for the roller shaft material performance are strict. The research results can provide a reference for the selection and design of the saddle structure in long-span bridges.

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Competing mechanism between vertical stiffness and anti-slip safety in double-cable multi-span suspension bridges

Cited by 5 publications

References 27 publications

Continuous Dynamic Analysis Method and Case Verification of Cable Structure Based on Digital Twin

Continuous Dynamic Analysis Method and Case Verification of Cable Structure Based on Digital Twin

Safety–Function–Environment Evaluation System for Large-Span Cable-Supported Bridges: Theory and Case Studies

Characteristics Comparison and Case Study of Traditional Anti-Slip Saddles and Innovative Rolling Saddles in Highway Long-Span Bridges

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