Construction method of cast-in-place concrete crash barrier with eaves

Abstract

The invention discloses a construction method of a cast-in-place concrete crash barrier with eaves, which is characterized in that an inner template is firstly installed and then an outer template is installed by a pulley block and a steel wire rope; a leveling limit rod is installed, so that the inner and outer templates are integrated; a level micro-adjustment device is adjusted, so that a pull screw is installed after the inner and outer templates are leveled; and an eave adjusting plate is arranged in an operation groove to complete the installation of the templates. After pouring, the eave adjusting plate is loosened, and automatically droops from the concrete eaves; the leveling limit rod and the outer template are disconnected; the outer template is loosened, and automatically droops; the inner template is lifted to complete the dismantling of the templates; and a travel motor is turned on, so that the overall formwork travels to the next pouring area. The whole template can be quickly disassembled, quickly moved and quickly installed and positioned, and a construction work groove is attached without any additional machinery.

Description

technical field [0001] The invention relates to a construction method of an anti-collision guardrail extending longitudinally along a bridge, in particular to a construction method of a cast-in-situ concrete anti-collision guardrail with hanging eaves. Background technique [0002] At present, the design of the anti-collision barriers of domestic highway bridges can be roughly divided into three types according to the different ways of combining with the beams, namely: ordinary sitting-type anti-collision barriers, cast-in-place concrete anti-collision barriers with hanging eaves, and prefabricated installation hanging plate anti-collision barriers. With the improvement of people's aesthetic requirements, ordinary sitting-type anti-collision barriers can no longer meet the aesthetic needs, and more tend to adopt the latter two forms of anti-collision barriers to fully show the visual effect of bridge design. [0003] There are not many designs and uses of cast-in-place concr...

AI Technical Summary

Problems solved by technology

With the improvement of people's aesthetic requirements, ordinary sitting-type anti-collision barriers can no longer meet the aesthetic needs, and more tend to adopt the latter two forms of anti-collision barriers to fully show the visual effect of bridge design

[0003] There are not many designs and uses of cast-in-place concrete anti-collision guardrails with hanging eaves. At present, there is no mature construction supporting equipment in China. Most construction units use small cranes to organize construction. There is a lot of labor, mechanical equipment, and formwork costs. Disadvantages such as large size, slow progress, and no security guarantee

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