Stentless urban bridge anti-collision guardrail construction method and cradle vehicle and gun carrier thereof

Abstract

The invention discloses a stentless urban bride anti-collision guardrail construction method, which is characterized in that a self-driven gun carrier back transportation template and a self-driven cradle vehicle are used for hoisting a anti-collision guardrail template, and an inner side template is used for hoisting an outer side template, so that the stentless construction is realized; the outer side template is hung and reinforced by a triangular support on the inner side template, the lower part of the outer side template is fixedly connected with an inner template through a counter-strain bolt, the straightness of the template is adjusted by utilizing a supporting rib and a basket bolt, the concrete is poured after the template is well adjusted, and a template cover is dismounted after the concrete strength meets the requirement so as to perform the moistening maintenance. Due to the adoption of the stentless urban bridge anti-collision guardrail construction method, the technical difficulties of the traditional support method that a support is previously arranged and the influence on the road traffic and the construction is large can be solved, not only can the working period be guaranteed, but also the normal construction and the traffic of the pavement road can be guaranteed, and the construction cost is also reduced; and the quality defects such as difficulty for installing and reinforcing the anti-collision rail steel template, easiness in template deviation and leakage, uncompactness for pouring the concrete, easiness for resulting in honeycomb, rough surface, bubbles, unattractive outline and the like can be solved.

Description

technical field [0001] The invention relates to a construction method of an urban bridge anti-collision guardrail and equipment used therein. The construction method of the invention is suitable for application in urban bridge anti-collision guardrail projects, and is especially suitable for use in unconventional constructions such as bridges over water and relatively high bridges. Background technique [0002] As the auxiliary structure of the bridge, the anti-collision guardrail of the urban bridge directly affects the overall appearance of the bridge, and it will also bring many technical problems. In the past, the construction technology of anti-collision guardrails required erecting supports, and it was difficult to carry, install, and reinforce the formwork. The bridge anti-collision guardrail is small in size, and it is difficult to work at heights. The construction period of erecting the bracket is long, and there are potential safety hazards. The characteristics of ...

AI Technical Summary

Problems solved by technology

In the past, the construction technology of the anti-collision guardrail required the erection of brackets, and it was difficult to carry, install, and reinforce the formwork.

The bridge anti-collision guardrail is small in size, and it is difficult to work at heights. The construction period of erecting the bracket is long, and there are potential safety hazards. The characteristics of the anti-collision wall formwork handling, installation, and reinforcement are possible. The hanging basket realizes the construction method of the urban bridge anti-collision guardrail without support, which overcomes the difficulties in the formwork handling, installation and reinforcement of the previous construction technology, which is easy to run out of the mold and leak, the concrete pouring is not dense, and it is prone to honeycomb, pockmarks, air bubbles and unsightly lines. Quality defects

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