Study on Disaster Prevention System for Long Span Bridge over the Sea

J. Ocean Eng. Technol. 2009;23(3):59-64.

Kong Byung-Seung

Department of Civil Engineering Dongseo University

장대해상교량의 방재시스템 구축에 관한 연구

공병승

동서대학교 토목공학과

Keywords: Long span bridge, Disaster prevention system, a preliminary perception, Flame envelope, Self rescue

핵심용어: 장대교량, 방재시스템, 사전인지, 화염포락, 자력구조

Abstract

Bridge types such as the suspension bridges and the cable stayed bridges maintained by cables present the dangerous possibility of a ship running through the bottom of the bridge. Due to hangers and main cables in the upper structural system, the bridge is also susceptible to disasters. However, these cable bridges are usually used for long span bridges over the sea. This structure is relatively more exposed to disasters, such as wind, hail, and earthquake, than other structures. This structure also has the potential to cause car accidents on account of the poor visibility due to foggy conditions. If a fire breaks out because of a car accident due to wind, a car explosion will likely occur.