Xie, W; Zhao, T; Tang, J and Zhang, Y (2017) Arch first and beam later: Arch-rib integral installation construction technology for large-span tied-arch bridge. Journal of Construction Engineering and Management, 143(8): 04017059, ISSN 0733-9364
Abstract
Tied-arch bridges are usually constructed using the beam first and arch later method, which enjoys the advantages of a short construction period and ease with which quality control can be achieved. However, when tied-arch bridges are constructed over roads or navigation channels, the construction will inevitably interrupt traffic, preventing the beam first and arch later construction from being realized. Therefore, this study investigates the arch-rib integral installation for the arch first and beam later method. The advantages and disadvantages of the conventional cable and arch-rib hoisting method are analyzed; further, this paper proposes the assembly of the arch rib on one side of the bridge, and the installation of the arch rib using a floating crane in a single step. Owing to the decreased cost, time saving, and ease of quality control, the horizontal installation method was preferentially adopted during arch-rib integral installation. Concreting at the arched beam area of the tie bar was conducted using Berea pieces assembled on a sling hanging basket, which can be repeatedly used to reduce the construction cost. Results obtained show that the arch first and beam later construction method is feasible.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | arch first and beam later; construction materials and methods; hanging basket; integral installation; quality; safety; tied arch |
| Index terms: | time saving, hoisting, quality control, construction material, construction technology, construction cost, construction method, concreting, beam |
| Subjects: | building materials, construction operations, digital engineering, time analysis, financial and cost management, project delivery, structural engineering, building construction |
| Topics: | Digital Applications, Site Management, Cost Management, Engineering Principles, Quality Management, Time Control |
| Descriptive scope: | 2 PC |
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