Engaged type reinforced concrete composite structure suspension monorail traffic track beam

Abstract

The invention discloses an engaged type reinforced concrete composite structure suspension monorail traffic track beam which comprises a steel structure and concrete coating the outer side of the steel structure. The steel structure comprises a track beam body, transverse reinforcing steel bars and frame reinforcing steel bars. The track beam body comprises an upper flange, webs and lower flanges,the upper flange is engaged with the webs, and the webs are engaged with the lower flanges. The transverse reinforcing steel bars are arranged on the outer sides of the upper flange, the webs and thelower flanges, and the frame reinforcing steel bars are arranged on the outer side of the track beam body. The suspension monorail traffic track beam is manufactured through a reinforced concrete composite structure, and industrial production of the track beam is achieved; the section of the track beam integrates the section stress feature and the stress performance advantages of the steel structure and the concrete, the steel structure is high in tensile capacity, the concrete is high in pressure resistance, and the advantages of the steel structure and the concrete complement each other; due to the fact that the steel structure is coated with the concrete, the function requirement of the track beam is easier to met; and meanwhile, the steel structure cannot be corroded by the natural environments such as rainwater after being coated with the concrete, and the durability of the steel structure can further be guaranteed.

Description

technical field [0001] The invention relates to the field of rail traffic, in particular to a toothed steel-concrete composite structure suspended monorail rail beam. Background technique [0002] Suspended monorail transit is a form of monorail transit. Suspended monorail is still in the initial stage of exploration in our country. Suspension monorail transportation system has flexible structure and relatively simple construction, which is more suitable for short-distance transportation with medium and low volume. The current suspended monorail traffic track beam is in the form of a closed cross-section with a disconnected bottom, which is generally welded and formed by steel plates. The steel plates are cut into strips, assembled and welded to form the strips. The welding work is relatively large and the manufacturing efficiency is low. The amount of welding deformation is large, the forming accuracy of the track beam is poor, and the quality is difficult to guarantee; a...

AI Technical Summary

Problems solved by technology

The current suspended monorail traffic track beam is in the form of a closed cross-section with a disconnected bottom, which is generally welded and formed by steel plates. The steel plates are cut into strips, assembled and welded to form the strips. The welding work is relatively large and the manufacturing efficiency is low. The amount of welding deformation is large, the forming accuracy of the track beam is poor, and the quality is difficult to guarantee; at the same time, the shape of the transverse stiffener is irregular, resulting in a large loss of cutting and blanking of the stiffener plate, and serious cost waste. The connecting welds of the main body of the track beam have many intersections and overlapping areas, which are likely to cause weld accumulation and affect the quality of the joints. According to the requirements of the steel structure welding code, in order to avoid the connecting welds of the main body of the track beam, weld holes are set on the stiffeners , it will increase the blanking loss of the stiffener, and the weld seam is discontinuous, the welding efficiency is extremely low, the force on the upper flange and web of the track beam main body is small, the thickness of the plate is thin, and the welding is prone to deformation.

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