Installation Quality Control of Web Formwork of Box Girder for High Pier in Canyon Region
The MORACICA Bridge is located in a grand canyon where is a wind channel and with great wind all the year round,especially in the winter and spring season,the wind can reach force 7-8 level even up to 11 gale.The highest bridge Pier # 3 is 161m high,and that of pier # 0 block for Pier #1 is 10.5m,and for Pier #2-# 5 is 11.5m.The severe weather and high piers have brought ordeal to formwork construction.The construction technology and experience of inclined web template installation of the box girders for the MORACICA Bridge are introduced with the requirements of ensuring construction safety,quality and efficiency,and through elaborations on schemes comparison,construction optimization,process control and so on,controlling measures during the installation of inclined web slab formwork for high pier are concluded in terms of linearity,inclination ratio,elevation of inclined web slab surface and web structure stability,so as to provide reference for high pier box girder inclined web construction.
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