Railway assembled hollow pier and construction method thereof

Abstract

The embodiment of the invention relates to the technical field of railway pier construction, and especially relates to a railway assembled hollow pier and a construction method thereof. The railway assembled hollow pier comprises a bearing platform, standard pier stud sections, pier top pier stud sections and padstones; the bearing platform and the padstones are both manufactured by in-situ casting; the pier top pier stud sections and the standard pier stud sections are all prefabricated parts; the standard pier stud sections are of hollow tubular structures; a self-locking anchorage device fixing end, a steel strand corrugated pipe and an embedded steel bar are embedded in the bearing platform; the bearing platform, the standard pier stud sections and the pier top pier stud sections are assembled and positioned through a plurality of concave-convex shear keys; and the top ends of the prestress steel strands are tensioned on the tops of the pier top pier stud sections, and the guide heads at the bottom ends of the prestress steel strands are fixedly connected with the self-locking anchorage device fixing ends in a self-locking mode. The railway assembled hollow pier can meet the rigidity design requirement of a railway bridge, the light design concept is achieved, all components are in precise butt joint, the assembling reliability is achieved, and the construction period is shortened.

Description

technical field [0001] The present application relates to the technical field of railway bridge pier construction, in particular to a railway assembled hollow bridge pier and a construction method thereof. Background technique [0002] The existing railway bridge construction has been adhering to the development concept of "industrialized construction and rapid construction". The prefabricated bridge structure has good economic and social benefits because it can speed up construction, reduce environmental pollution, and reduce labor costs. At present, in the construction technology of railway bridges, erecting simply supported beams through the whole hole is relatively mature, but the development of prefabricated and assembled bridge piers is relatively slow. [0003] Since the railway bridge needs to meet the requirements of train ride comfort, it is necessary to ensure that the bridge piers have a certain rigidity, so the railway bridge piers mostly adopt gravity piers or ...

AI Technical Summary

Problems solved by technology

The use of prefabricated and assembled gravity piers directly leads to heavy weight of prefabricated components, inconvenient transportation, difficulty in hoisting, and increased costs, which violates the design principle of lightweight prefabricated bridges

In contrast, the hollow pier has become a reasonable structural form of railway prefabricated assembled bridge piers, but how to ensure convenient and accurate positioning and effective connection between multiple prefabricated hollow pier components has become a technical difficulty

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