A method for installing catenary column foundations on railway steel-concrete composite beams

Abstract

The invention discloses an installation method of a column foundation of an overhead contact system on a railway steel-concrete composite girder. The installation method of the column foundation of the overhead contact system on the railway steel-concrete composite girder comprises the steps of assembling, lifting and installing supporting parts, then embedding reinforcing steel bars on the top parts of the all supporting parts and the top part of a main girder, pouring, and accomplishing the installation of the column foundation. By adopting the method, the column foundation of the overhead contact system can be conveniently constructed, the pouring forming quality of a concrete layer is effectively improved, temporary construction measures such as independently arranging a template are reduced, the installation efficiency and the quality of the column foundation are effectively improved, the construction period is shortened, the lifting and the installing of follow-up stand columns can be carried out conveniently, the perpendicularity and the stability of the stand columns are favorably ensured, the occurrence of the phenomena of rod collapse and sedimentation is avoided, reinforcing steel bars on flanges of a bridge floor have no need to be densified, the design strength and the construction difficulty are effectively reduced, materials are favorably saved, the increase of the construction cost of bridge engineering is avoided, installation positions of the stand columns can be planned conveniently, the operating quality of the contact system is improved, the economicalefficiency is improved, and the safety of a railway power transmission line is improved.

Description

technical field [0001] The invention relates to the technical field of railway steel-concrete combined beams, in particular to a method for installing catenary column foundations on railway steel-concrete combined beams. Background technique [0002] The steel-concrete composite beam is a new type of structure formed by combining two materials with different properties, steel and concrete. It is a reasonable combination of steel and concrete, which gives full play to the advantages of high tensile strength of steel, good plasticity and good compressive performance of concrete, and can make up for each other's shortcomings. Therefore, in modern bridge structures, steel-concrete combined beams are more It has become one of the main directions of bridge development. In recent years, electrified railways have become the mainstream type of modern railways, and are widely used in the construction of high-speed railways and urban rail transit. Many non-electrified railways have al...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies such as many restrictive conditions, high construction difficulty, high cost, low construction efficiency and poor quality when installing catenary foundations on steel-concrete bridges in the prior art, and to provide a railway steel Installation Method of Catenary Column Foundation on Concrete Combined Beam

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