Major Technical Features and Innovation of Qiandao Lake Bridge

The V-shape pier rigid-frame bridges with long continuous units are not often applied.However,the main bridge of the Qiandao Lake Bridge as presented in this paper is a pre-stressed concrete continuous V-shape pier rigid-frame structure with multiple spans arranged in(70+7×105+70+40) m and with a continuous unit as long as 915 m.At the site of the Bridge,the constant water depth is about 45 m and the bridge foundations are used with large diameter socketed concrete-filled steel tube piles.In this paper,the major technical features and innovation of the design and construction of the Bridge are dealt with.