Double-leg rigid-frame pier structure spanning existing building at small angle

一种小角度跨越既有构筑物的双腿刚构桥墩结构

Abstract

The utility model relates to a double-leg rigid-frame pier structure spanning an existing building at a small angle. When a railway bridge and the existing building under the bridge intersect at the small angle, the building can not be spanned by a whole opening, so that opening span arrangement adjustment of the railway bridge in a large range is caused. According to the double-leg rigid-frame pier structure spanning the existing building at the small angle, pile foundations, bearing platforms and a rigid-frame pier are sequentially constructed from bottom to top, and the pile foundations and the bearing platforms arranged on the pile foundations are arranged in two sets and arranged at the two sides of the existing building under the bridge; the rigid-frame pier is a double-leg rigid-frame pier and the middle of the bottom end of the rigid-frame pier is recessed upwards, so that struts at the two sides are formed and placed on the bearing platforms at the two sides; the struts at the two sides of the double-leg rigid-frame pier incline outwards from top to bottom. According to a reinforced concrete double-leg rigid-frame bridge, designed and completed opening span arrangement of the railway bridge can be prevented from being adjusted and modified in the large range and the modification range is reduced; compared with other adjusting schemes, the increased investment amount is small; the construction technique is mature, the construction difficulty is small, and the quality is controllable; the construction period of the double-leg rigid-frame pier structure is short and influence on a total work period by structural adjustment is avoided or reduced.
本实用新型涉及一种小角度跨越既有构筑物的双腿刚构桥墩结构。铁路桥梁与桥梁下既有构筑物小角度相交时,无法整孔跨越,导致铁路桥梁较大范围的孔跨布置调整。本实用新型自下而上依次构筑有桩基础、承台和刚构墩,桩基础和其上的承台设置有两组,分别设置在桥梁下既有构筑物的两侧;刚构墩为双腿刚构墩,底端中部上凹,形成两侧支柱,置于两侧承台上;双腿刚构墩的两侧支柱从上至下向外倾斜。本实用新型的钢筋混凝土双腿刚构桥,可避免已设计完成的铁路桥梁孔跨布置进行大范围的调整和改动,减小变动范围;相比其他调整方案所增加的投资额度小;施工技术成熟,施工难度小,质量可控;其施工周期短,可避免或减小结构调整对总工期的影响。

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (0)

    Publication numberPublication dateAssigneeTitle

NO-Patent Citations (0)

    Title

Cited By (0)

    Publication numberPublication dateAssigneeTitle