High-speed train station concrete-filled steel tube column-steel reinforced concrete beam node structure

Abstract

The invention discloses a high-speed train station concrete-filled steel tube column-steel reinforced concrete beam node structure. The high-speed train station concrete-filled steel tube column-steelreinforced concrete beam node structure comprises a concrete-filled steel tube column, a steel reinforced concrete beam and a ring beam and is characterized in that the concrete-filled steel tube column comprises an upper concrete-filled steel tube column, a lower concrete-filled steel tube column and a concrete-filled steel tube node column, and a cross plate and an eight-section plate are arranged in the bottom area of the upper concrete-filled steel tube column; an outer ring plate is arranged on the outer wall of the concrete-filled steel tube node column, and the upper flange and the lower flange of the steel reinforced concrete beam are in butt joint with the outer ring plate; the web of the steel reinforced concrete beam is connected with the concrete-filled steel tube node column;an inner ring plate, an inner partition and an inner rib plate are arranged in the concrete-filled steel tube node column. The node structure has the advantages that by the inner ring plate, the inner partition and the inner rib plate, axial force, transmitting to the upper column, in the column and shear force, transmitting to a frame girder, in the beam can be reduced effectively; after structural column stability loss, the inner ring plate, the inner partition and the inner rib plate can effectively transmit the axial force and bending moment in the beam, and structure collapse resistanceis increased effectively.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a steel pipe concrete column-steel concrete beam node structure for a high-speed railway station building. Background technique [0002] Modern elevated station buildings are usually long-span frame structures, and the structural columns of the track layer often adopt steel pipe concrete structures. When a train derails and crashes into the elevated station building structure, it is likely to cause the station building to collapse, resulting in heavy casualties and property loss, and the beam-column joints in the station building are the force transmission hubs between the components of the station building. It is very important to study the impact resistance of the joint structure to ensure that the structure does not collapse or suffer brittle failure after being impacted by the train. However, there is very little research on the high-speed lateral impact of the CFST...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a steel pipe concrete column-steel concrete beam node structure in a high-speed railway station building, to solve the problem that the existing node structure form in the existing elevated station building cannot meet the performance of train impact resistance

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