Dynamic Characteristics and Seismic Response Analysis of Self-Anchored Suspension Bridge

Zhang, Lian Zhen; Chen, Tian Liang

doi:10.4028/www.scientific.net/aef.5.183

Cited by 2 publications

(2 citation statements)

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“…With the continuous increase of extra-large bridges, the number of dangerous bridges and sick bridges is increasing every year. According to the statistical survey data, 42% of the super-large bridges in China's highways have been in service for more than 20 years, of which 32% have suffered from thirdand fourth-grade diseases, and more than 100,000 have been identified as dangerous bridges [3][4][5]. For example, the Hong Kong-Zhuhai-Macao Bridge, as the lifeline of China's economy, will directly cause huge personal and property losses once accidents such as collapse occur.…”

Section: Prefacementioning

confidence: 99%

Monitoring and Maintenance of Highway Super-Large Bridge Based on BIM Technology

Zhang

Dung

2023

Wireless Communications and Mobile Computing

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As the key node of highway traffic in China, the super-large bridge is the most important infrastructure of the country. With the completion of large-scale infrastructure construction in China, the key work of super-large bridges has changed from construction to maintenance. The service life of the super-large bridge is long, and with the increase of the service life of the super-large bridge, the annual maintenance cost is also increasing. At present, with the rapid development of super-large bridges in China, the diseases of super-large bridges are also increasing, and the maintenance and management of super-large bridges have become an urgent problem to be solved. In order to solve this problem, this paper takes the highway bridge as the research object and, on the basis of mastering the actual needs of the maintenance management of highway bridges in China, puts forward the monitoring and maintenance of bridges based on BIM technology, solves the lack of maintenance information elements in traditional BIM technology, studies the establishment method of the maintenance information model, finally develops the basic data acquisition software of the BIM model, accurately locates the disease position of the highway bridge, realizes the three-dimensional visual information management system of bridge, and continuously improves the maintenance efficiency. The research results show that starting from the monitoring and maintenance information management of highway bridges, the BIM data management method of the highway bridge maintenance stage is put forward, which realizes the visual management of maintenance information of highway bridges. Based on the analysis of the hierarchical information model of bridges, the component coding system of a bridge facing the maintenance management stage is established, and the visual management of diseases of bridges is put forward. Using BIM technology to assist the evaluation method of super-large bridges, using relational database and VBA project manager, based on the theoretical algorithm and interface design, automatic maintenance decision-making suggestions are realized. BIM technology is proposed to assist maintenance inspection and evaluation decision-making, and automatic and visual maintenance management of super-large bridges is realized. The research results provide practical guiding significance for further realizing the maintenance management system of highway bridges based on BIM technology.

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Section: Prefacementioning

confidence: 99%

Monitoring and Maintenance of Highway Super-Large Bridge Based on BIM Technology

Zhang

Dung

2023

Wireless Communications and Mobile Computing

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“…Comprehensive investigations have been done on the static and dynamic behaviors of two-tower long-span suspension bridges [1][2][3][4][5][6][7][8][9][10][11] under the dead load, traffic and static wind loading, etc. The triple-tower suspension bridge is a brand new type of structural form.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Characteristics Analysis and Parametric Study of a Super-Long-Span Triple-Tower Suspension Bridge

Zhang

Guo

Xiang

2012

AMM

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Based on the Taizhou Yangtze River Bridge, a 3D finite element model is developed to establish its deformed equlibrium configuration due to dead loading. Strating from deformed configuration,a modal analysis is performed to provide the frequencies and mode shapes. The study focuses on the effects of the vertical, lateral and torsional stiffness of the steel box girder, the rigid central buckle and the elastic restraints connecting the towers and the steel box girder on the dynamic characteristics of the triple-tower suspension bridge. The results show that, variation of vertical, lateral and torsion stiffness of stiffening girders have effects on the vibration frequency in corresponding directions only and have little effects in other directions. The elastic restraints have a more significant effect on the dynamic characteristics than the central buckle, and decreasing the stiffness of the elastic restraints results in the appearance of a longitudinal floating vibration mode of the bridge. The results obtained could serve as a valuable numerical reference for analyzing and designing super-long-span tripletower suspension bridges.

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Dynamic Characteristics and Seismic Response Analysis of Self-Anchored Suspension Bridge

Cited by 2 publications

References 0 publications

Monitoring and Maintenance of Highway Super-Large Bridge Based on BIM Technology

Monitoring and Maintenance of Highway Super-Large Bridge Based on BIM Technology

Dynamic Characteristics Analysis and Parametric Study of a Super-Long-Span Triple-Tower Suspension Bridge

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