金塘大桥墩座湿接头裂纹控制

Crack Control of Pier Base Wet Joints of Jintang Bridge

金塘大桥是舟山大陆连岛工程的第5座跨海大桥,针对跨海大桥大量应用的墩座湿接头展开裂纹控制研究。金塘大桥墩座湿接头在设计、混凝土配合比、施工工艺、养护等方面采取了裂纹控制措施,取得了显著效果。

The Jintang Bridge is the fifth sea-crossing bridge of the Zhoushan Mainland and Islands Link Project. In the light of the characteristics that the wet joints are normally used in large amounts for pier bases of sea crossing bridges, the crack control of the wet joints is devel- oped. For the Jintang Bridge, the control measures against the cracks in the wet joints of the pier bases are taken in aspect of the design, concrete mix proportioning, construction technology and curing and the notable effect of the crack control has been achieved.