NDLI: Design of Arch Bridge with Variable Steel-Concrete Composite Section Based on Vertical Erection-Rotation Method

Content Provider	IEEE Xplore Digital Library
Author	Yong Xu Zhixiang Zhou Haijun Wu
Copyright Year	2010
Abstract	This paper presented an innovative use of a variable steel-concrete composite section for the main arch ribs to take combined advantages of steel and concrete strength. And vertical erection method that can significantly simplify and accelerate arch bridge construction with better structure integrity and higher stability during construction is developed. Since steel construction is superior to RC due to its advantages of high strength to weight ratio, offsite prefabrication and quick on-the-spot assembly, the use of steel box as the stiffening core of arch rib section becomes an ideal choice for the initial arch framing using the developed erection method. The prefabricated steel box can be erected vertically on temporarily restrained horizontal hinge device at the spring line with minimal hoisting equipments. The completed two half-leaf can then rotate down on its own weight to meet at the mid-span for closure in a few hours. The completed steel arch frame can serve as formwork and supporting system to provide a sufficient and safe platform for the placement of concrete that forms a variable composite rib section, and for erection of spandrel columns and deck system. This construction technique and structure optimization can significantly simplify and speed up arch bridge construction with increased work zone safety and better constructability, thus provides a viable solution for arch bridge construction with difficult site condition. Pilot project, a 75-meter highway bridge, was presented to demonstrate the basic concept, design features, general construction technology.
Starting Page	1
Ending Page	4
File Size	477032
Page Count	4
File Format	PDF
ISBN	9781424471591
e-ISBN	9781424471614
DOI	10.1109/ICEEE.2010.5660576
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-11-07
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bridges Road transportation Fasteners Concrete Steel Ribs
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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