TITLE:
Development of Optimal Structural System for Hybrid Cable-Stayed Bridges Using Ultra High Performance Concrete
AUTHORS:
Hee Seok Kim, Young Jin Kim, Won Jong Chin, Hyejin Yoon
KEYWORDS:
Hybrid Cable-Stayed Bridge; Ultra High Performance Concrete (UHPC); Optimal Structural System;Durability
JOURNAL NAME:
Engineering,
Vol.5 No.9,
August
23,
2013
ABSTRACT: This study developed an optimal structural system for the hybrid cable-stayed bridge expected to have a durable lifetime of 200 years and of which major structural members are made of ultra high performance concrete (UHPC) with 200 MPa-class compressive strength. This innovative cable-stayed bridge system makes it possible to reduce each of the construction and maintenance costs by 20% compared to the conventional concrete cable-stayed bridge by improving significantly the weight and durability of the bridge. Therefore, detail design is carried out considering a real 800 m cable-stayed bridge and the optimal structure of the hybrid cable-stayed bridge is proposed and verified.