Key Design and Construction Techniques for Collisionproof Steel Cofferdam for Large Span Cable-stayed Bridge

摘要：

　　As an example,the design and construction technology of the anti-ship collision suspended steel cofferdam in Shanghai Changjiang River Bridge has been discussed.Design analysis shows that:by using the anti-ship collision suspended steel cofferdam the bridge pier can be protected and adopted lots of collision energy.At the same time,the collision injury degree of the vessel could be reduced.By using the finite element method,the deformation and strain state under the stage of construction and floating-transportation had been analyzed.Considering both the anti-ship collision and the construction,the anti-ship collision suspended steel cofferdam has been designed.In construction stage,the following methods had been developed:the integrally manufacturing method in factory,launching method to river in slideway,fioating-transportion method to the pier position in long distance and set-to-place method by synchronous lifting of two floating cranes.These results listed in this paper are beneficial to the design and construction of the anti-ship collision suspended steel cofferdam.

关键词： long span cable-stayed bridge anti-ship collision suspended steel cofferdam design construction

作者: Weizhou Li Zhongju Feng Zhongchao Hu Dongliang Xun Jian Zeng Qiang Peng

作者单位: The Highway school of Changan University, Xi an 710064, China CCCC-2nd Navigational Engineering Co., Ltd., Wuhan 430040, China Key Lab for Large-Span Bridge Construction Technology, Wuhan 430040, China CCCC-Wuhan Harbour Engineering Design & Research Institute, Wuhan 430040, China

会议类型: 国际会议

会议名称: The International Conference on Civil Engineering, Architecture and Sustainable Infrastructure (2012土木建筑与可持续基础设施工程国际会议(ICCEASI2012))

会议地点: 郑州

会议语种:英文

页码: 677-683

在线出版日期: 2012-09-22（万方平台首次上网日期，不代表论文的发表时间）