Construction method of traffic door opening in bridge road overline construction

Abstract

The invention provides a construction method of a traffic door opening in bridge road overline construction, which comprises a mounting step and a dismounting step, and the mounting step comprises thefollowing steps: mounting a plurality of supporting steel pipes on two sides of a road; a loading and unloading device is arranged on the supporting steel pipe and comprises an upper support capableof moving up and down; the preset height of the upper support is adjusted, longitudinal beams are arranged on the upper support, and the longitudinal beams are arranged on the supporting steel pipes on the same side of the road; installing cross beams on the longitudinal beams, wherein the cross beams are arranged on the longitudinal beams on the two sides of the road; and a formwork is laid on the cross beam, and concrete is poured. The unloading device is arranged between the supporting steel pipe and the longitudinal beam, the upper support of the unloading device is used for supporting thelongitudinal beam when being located at a high position, and when the upper support is located at a low position, the upper support and the longitudinal beam can be quickly separated, time is saved,and efficiency is improved.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a construction method for a traffic doorway in the construction of bridges and road crossings. Background technique [0002] With the continuous improvement of my country's transportation road network, various bridges and roads cross vertically and horizontally. When crossing construction, it is often necessary to cross existing roads. During construction, it is necessary to ensure that the new road can be completed on schedule, but also to ensure the normal operation of the original road. A common construction method is to erect a steel structure temporary traffic doorway above the original road. Temporary traffic door openings in steel structures include supporting steel pipes and longitudinal beams welded on the supporting steel pipes, I-beams and formwork, etc. The existing construction methods need to weld the longitudinal beams to the supporting steel pipes, and cut ...

AI Technical Summary

Problems solved by technology

Temporary traffic door openings in steel structures include supporting steel pipes and longitudinal beams welded on the supporting steel pipes, I-beams and formwork, etc. The existing construction methods need to weld the longitudinal beams to the supporting steel pipes, and cut the supporting steel pipes after the construction is completed. The separation of supporting steel pipes and longitudinal beams, this removal method has the disadvantages of long removal period and waste of steel pipes

In the existing unloading device, the upper and lower ends of the left and right sliders are all set at sharp angles, which cannot be placed on the plane smoothly. Set operation is inconvenient

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