e-mosty December 2018 e-mosty December 2018 | Page 64

Concrete Filled Steel Tube (CFST)
Arch Bridges in China
Magdaléna Sobotková
Figure 1: Bosideng Bridge in China
1. INTRODUCTION TO CFST
Since 1990 when the Wangcang Bridge – as the first
CFST Arch Bridge - was completed, more than 400
Concrete Filled Steel Tube (CFST) Arch Bridges with a
main span more than 50m have been built in China.
Figure 2 shows the trend in growth of span. The record
is held by the Bosideng Bridge over the Yangtze River
in Hejiang County, Sichuan Province, China. The bridge
is the key project of Luzhou – Chongqing Highway
across the Yangtze River. The main span is 530m, the
span combination is 10x20m + 530m + 4x20m. The
steel-concrete composite deck is 30.6m wide.
The construction started in 2009 and the bridge was
opened to traffic in 2012.
Figure 2: Trend in growth of span
4/2018