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Article

A Novel Construction Technology for Self-Anchored Suspension Bridge Considering Safety and Sustainability Performance

1
Key Laboratory for Bridge and Tunnel of Shannxi Province, Chang’an University, Xi’an 710064, China
2
Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 210000, China
3
Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China
4
Zhejiang Provincial Transport Planning, Design and Research Institute, Hangzhou 310000, China
*
Author to whom correspondence should be addressed.
Sustainability 2020, 12(7), 2973; https://doi.org/10.3390/su12072973
Received: 20 March 2020 / Revised: 6 April 2020 / Accepted: 6 April 2020 / Published: 8 April 2020
(This article belongs to the Special Issue Sustainable Construction II)
To promote sustainable development of civil infrastructures, minimizing environmental impact and mobility disruptions have been elevated to a higher priority during decision-making for bridge construction scheme. This study presents a novel temporary pylon-anchor (TPA) technology for construction of self-anchored suspension bridges by considering not only safety performance, but also environmental impacts. A practical assessment method and index of sustainability associated with bridge construction technology are established to facilitate the selection of construction schemes. The sustainability index takes the environmental impact, traffic disruption, onsite construction materials and equipment, onsite construction cost, and onsite construction risk into consideration. The sustainability index associated with both conventional and novel construction methods is assessed and compared in this paper. Specifically, a novel girder-pylon antithrust system (GPAS) is proposed, which is the crucial component of the TPA technology in engineering application. In addition, an analytical approach is developed, considering both global load-carrying capacity and local stress distribution within the design and construction of the GPAS. The applicability and rationality of the proposed construction technology are illustrated by the successful application in real-world engineering. The field tests and sustainability assessment during the construction stage reveal that the proposed sustainability assessment method and analytical approach can facilitate the implementation of sustainable construction for self-anchored suspension bridges by considering both construction safety and sustainability. View Full-Text
Keywords: Sustainable construction; environmental impact and traffic disruptions; self-anchored suspension bridge; design-oriented analytical approach Sustainable construction; environmental impact and traffic disruptions; self-anchored suspension bridge; design-oriented analytical approach
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MDPI and ACS Style

Wang, X.; Wang, X.; Dong, Y.; Wang, C. A Novel Construction Technology for Self-Anchored Suspension Bridge Considering Safety and Sustainability Performance. Sustainability 2020, 12, 2973. https://doi.org/10.3390/su12072973

AMA Style

Wang X, Wang X, Dong Y, Wang C. A Novel Construction Technology for Self-Anchored Suspension Bridge Considering Safety and Sustainability Performance. Sustainability. 2020; 12(7):2973. https://doi.org/10.3390/su12072973

Chicago/Turabian Style

Wang, Xiaoming, Xudong Wang, You Dong, and Chengshu Wang. 2020. "A Novel Construction Technology for Self-Anchored Suspension Bridge Considering Safety and Sustainability Performance" Sustainability 12, no. 7: 2973. https://doi.org/10.3390/su12072973

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