TITLE:
Conceptual Design of Hybrid Cable-Stayed Bridge with Central Span of 1000 m Using UHPC
AUTHORS:
Hyejin Yoon, Won Jong Chin, Hee Seok Kim, Moon Seoung Keum, Young Jin Kim
KEYWORDS:
Ultra-High Performance Concrete; UHPC; Cable-Stayed Bridge; 200 MPa-Class; Sutong Bridge
JOURNAL NAME:
Engineering,
Vol.5 No.9,
August
29,
2013
ABSTRACT: Ultra-high performance concrete (UHPC) is featured by a
compressive strength 5 times higher than that of ordinary concrete and by a
high durability owing to the control of the chloride penetration speed by its
dense structure. The high strength characteristics of UHPC offer numerous advantages
like the reduction of the quantities of cables and foundations by the design of
a lightweight superstructure in the case of the long-span bridge preserving its
structural performance through axial forces and structures governed by
compression. This study conducted the conceptual design of a hybrid cable-stayed
bridge with central span of 1000 m and exploiting 200 MPa-class UHPC. The
economic efficiency of the conceptual design results of the hybrid cable-stayed
bridge with central span of 1000 m and of Sutong Bridge, the longest
cable-stayed bridge in the world, was analyzed.