Assembled temporary guardrail for reconstructed, expanded, elevated and widened bridge

Abstract

The invention provides an assembled temporary guardrail for a reconstructed, expanded, elevated and widened bridge, which comprises an embedded anchoring part, an assembled upright post, a transverse connecting pipe, an anti-collision protective cylinder, a bridge floor cast-in-place layer template, a fixing bolt I, a fixing bolt II, a fixing bolt III and a fixing bolt IV, wherein the embedded anchoring part is fixed on a beam top flange; the bottoms of the assembled upright posts are fixedly connected with the embedded anchoring parts through the fixing bolts III, the transverse connecting pipes are arranged between every two adjacent assembled upright posts and fixed through the fixing bolts IV, and the anti-collision protection cylinders are arranged in the middles of the side faces, close to a bridge floor, of the assembled upright posts and fixedly connected through the fixing bolts I; the bridge floor cast-in-place layer formwork is fixedly arranged at the bottom of the side face, close to the bridge floor, of the assembled upright post through fixing bolts II. By adopting a full-assembly type structure, the device is convenient to mount and dismount, the use of large machinery is reduced, the influence on road traffic is reduced, the workload of re-erecting a formwork is reduced, the subsequent bridge deck splicing is facilitated, the device can be recycled and reused, and the cost is saved.

Description

technical field [0001] The invention belongs to the technical field of bridge widening construction, and in particular relates to an assembled temporary guardrail for rebuilding and expanding a raised widening bridge. Background technique [0002] At present, with the continuous acceleration of the overall development process in our country, the traffic volume of expressways has also continued to increase, and the traffic volume has greatly exceeded the original construction expectations. Therefore, in the past ten years, my country has begun to implement large-scale expressway reconstruction and expansion projects. When the bridge is raised during reconstruction and expansion, because the elevation of the bridge is higher than the original bridge, a temporary guardrail needs to be installed inside the bridge. The installation and removal of the concrete guardrail in the prior art is difficult, and a large number of buildings will be caused after the demolition. Garbage will...

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Problems solved by technology

[0002] At present, with the continuous acceleration of the overall development process in our country, the traffic volume of expressways has also continued to increase, and the traffic volume has greatly exceeded the original construction expectations. Therefore, in the past ten years, my country has begun to implement large-scale expressway reconstruction and expansion projects

When the bridge is raised during reconstruction and expansion, because the elevation of the bridge is higher than the original bridge, a temporary guardrail needs to be installed inside the bridge. The installation and removal of the concrete guardrail in the prior art is difficult, and a large number of buildings will be caused after the demolition. Garbage, increasing the cost of garbage disposal and environmental protection pressure, and it is inconvenient to fix the concrete guardrail and beam body, which affects the construction progress

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