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Double Cable System Suspension Bridge, Indonesia

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The new bridge over the Mamberamo River in Irian Jaya, Indonesia, is part of a road development project in an agricultural area. Since roadworks were incomplete at the time of construction, transport of materials to the bridge site was a particular challenge in this project. The river at the crossing site has a rapid flow and the river bed is quite rocky. Rather than attempt to construct river piers in such circumstances, it was decided to span the crossing with a single span, 235 m suspension bridge. At this span length, the towers could be set back some 10 m from the river banks. The towers are prefabricated steel frames with site-bolted connections. The main cables are in dual asymmetric arrangement for optimum stiffness. Total weight of cable was about 120 t. The timber deck consists of transverse deck planks with timber kerbs to delineate the carriageway.

Keywords: Clamp testing; Dual cable system; Hanger ropes; Prefabricated steel frames; Suspension bridges

Document Type: Research Article


Publication date: 1996-08-01

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    Structural Engineering International (SEI), the quarterly Journal of IABSE, published since 1991, is the leading international journal of structural engineering dealing with all types of structures and materials. SEI offers its readers a unique blend of short profiles on recent structures, and longer, in-depth technical articles on research, development, design, construction and maintenance. Articles are written by practicing engineers and academia from around the world and reflect the high standards of IABSE. IABSE Peer Review stamps are given to papers that have passed through a highly selective review process and demonstrate a significant contribution to the state of structural engineering knowledge.To recognise contributions of the highest quality, an Outstanding Paper Award is presented each year.

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