Hoisting stress check up of Huangjin large Bridge precast arch box

Study on mechanical characteristics of precast block of inverted arch for TBM construction tunnel;

The Sunkou Yellow River bridge is taken as an example to probe into how to get the fabrication camber and construction camber,and the space finite element model of the bridge is established by means of the software Midas/Civil.

Combining the field operation of caisson precasting,presenfd by safety system analysis and fault tree analysis,the danger factors of caisson precasting,and relevant safety control measures are put forward.

The technology of caisson precasting in winter is summarized,serving as a reference for similar engineering.