Conceptual Design of Hybrid Cable-Stayed Bridge with Central Span of 1000 m Using UHPC

Hyejin Yoon, Won Jong Chin, Hee Seok Kim, Moon Seoung Keum, Young Jin Kim

Global Technology Cooperation Center, Korea Institute of Construction Technology, Goyang, South Korea.
Structural Engineering Research Division, Korea Institute of Construction Technology, Goyang, South Korea.

DOI: 10.4236/eng.2013.59089                

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.

Keywords

Ultra-High Performance Concrete; UHPC; Cable-Stayed Bridge; 200 MPa-Class; Sutong Bridge

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Korea Institute of Construction Technology, “Development of Design and Construction System Technology for Hybrid Cable Stayed Bridge,” KICT 2009-102, 2009.
[2]	Korea Institute of Construction Technology, “Development of Design and Construction System Technology for Hybrid Cable Stayed Bridge,” KICT 2010-088, 2010.
[3]	Korea Institute of Construction Technology, “Development of Design and Construction System Technology for Hybrid Cable Stayed Bridge,” KICT 2011-076, 2011.