Life-Cycle Cost of All-Composite Suspension Bridge
Publication: Journal of Composites for Construction
Volume 6, Issue 4
Abstract
This paper reports on the design of two highway suspension bridges made of conventional steel and advanced all-composite carbon fiber reinforced polymer (CFRP), and analyzed their life-cycle costs. The writers assumed that the pultrusion molding method would mainly be used for all composite highway bridges, because of its relatively high quality control performance and mass-production capability. First, the writers obtained the steel and composite highway bridge design in the same dimensional specification. Second, they acquired the future cost of the CFRP pultrusion product through hearing research from a fiber reinforced polymer manufacturer. Third, they calculated the initial costs of the steel bridge and CFRP bridge based on the design specification and the future cost of CFRP. Fourth, they compared the life-cycle cost of the steel and CFRP bridges under several conditions of discount rate, repair cost, and cycle. Finally, they found the critical condition where the CFRP bridge becomes more life-cycle cost-effective than the conventional steel bridge, if they could have expected the drastic cost reduction of the CFRP product.
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Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 6 • Issue 4 • November 2002
Pages: 206 - 214
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Dec 15, 2000
Accepted: Dec 4, 2001
Published online: Oct 15, 2002
Published in print: Nov 2002
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