斜拉桥H形塔柱模板精调技术研究

Cable-stayed Bridge Tower Type a Template Technology

斜拉桥桥塔的施工会直接影响桥梁的质量、工期进度等,因此确保塔柱的快速施工将大幅提高斜拉桥的施工速度。长湾澧水大桥为一座独塔不等跨斜拉桥,主塔采用大坡比H形索塔,该部分高度较高、倾斜度大,混凝土量使用大,并且施工工期紧,在施工中如何保证H形塔柱模板精度是决定后续塔柱质量、索导管安装精度的关键。本文根据该桥H形塔柱倾斜角度大,模板加固调整难度大的特点,利用塔柱模板支撑体系及千斤顶进行模板体系的粗调及精调,该调节方法很好地利用了塔柱横梁的支撑体系,通过借用该体系作为塔柱模板调节的受力部分,既保证了施工的安全可靠,又节约了大量的人力及物力且施工简单,无需为大坡度模板精调而专门设置支撑结构,为类似工程提供借鉴。

With the rapid development of bridge construction in China,more and more bridges with large span cable-stayed bridge was chosen,construction will directly influence the pylon of cable-stayed bridge bridge quality,schedule,thus ensuring rapid construction will greatly improve the construction speed of pylon cable-stayed bridge.Long Bay Lishui bridge is a single tower cable-stayed bridge with different span,the main tower with large ratio of inverted V shaped tower,the height is higher,inclination,large amount of concrete,and the construction time is tight.This paper from the template assembly and connection of steel and concrete pouring construction aspects of slope inverted V towers were introduced,so as to ensure the construction quality and speed of the tower.