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J. Ocean Eng. Technol. 2005;19(5):34-42.    

Structural Analysis of a Cable Anchor System for a Cable-Stayed Bridge over the Sea
KONG BYUNG-SEUNC;HONG NAMSEEG;
Division of Civil and Architecture, Dongseo University;Division of Civil and Ocean Engineering, Donga University;
해상 사장교의 Pipe형 케이블 정착구에 관한 구조해석
공병승;홍남식;
동서대학교 건축토목시스템공학부 토목공학과;동아대학교 토목해양공학부;
Copyright © 2005 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Key Words: Cable-Stayed Bridge, Cable Anchor System, Pipe Type Anchor System , Bearing Plate Anchor
핵심용어: 사장교, 케이블 정착구, Pipe형 정착구, 지압형 정착구
Abstract
The cable connection zone of the cable-stayed bridge transfers deal-load, live-load, and second-load to the cables on the structural joint zone of the cables and the main girders are the most critical parts in which big cable tensile forces are generated by those loads. Therefore, it is necessary to thoroughly check the main girder, structurally to secure the required stability. Because of the heavy tensile force of cables linked in the connection zone of the cable-stayed bridge, locally concentrated stress, as well as the dispersion of stress, occurs in the structurally contacted point of cable and main girder thus, we need to make a thorough investigation through a detailed structural analysis. Directly delivering the tensile force to the connection zone of the cable, the consequently big effect in the tensile force fluctuation caused by the live-load will make it necessary to review the fatigue strength. As the connection zone of the cable is designed to resist the tensile force of the cable, which is applied to a connecting section as a concentrated force, thick plates are used. These plates are frequently made of welded structure, thus, the investigation of the welding workability is inevitable.


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