Rapid construction method for bridge guardrail with flower bed and prefabricated externally-hung flower bed

Abstract

The invention relates to a rapid construction method for the bridge guardrail with the flower bed. A prefabricated externally-hung flower bed is used and comprises a vertical inner side vertical plateand a vertical outer side baffle; and two vertical side plates and a horizontal bottom plate are connected between the inner side vertical plate and the outer side baffle; the inner side vertical plate, the outer side baffle, the bottom plate and the two side plates jointly define a flower bed with an upward opening. The construction method comprises the following steps: with an inner side vertical plate of the externally hung flower bed as an outer side template, building an inner side steel formwork and thus enabling the inner side vertical plate and the inner side steel formwork to jointlyform a template for pouring a concrete crash barrier; pouring concrete into the template; dismounting the inner side steel formwork after forming to complete construction of the flower bed and the bridge barrier with the flower bed. According to the method, the construction operation of the existing bridge crash barrier with the flower bed can be simplified, and the construction operation is accelerated.

Description

technical field [0001] The invention belongs to the technical field of urban beautification construction, and in particular relates to a rapid construction method for a bridge guardrail with a flower pond and a prefabricated external hanging flower pond. Background technique [0002] There are generally anti-collision barriers on both sides of the bridge to ensure the safety of driving on the bridge. As the development of the city has entered a new stage, the construction of the city is not limited to the purely functional construction in the past. At present, in the design of bridges in cities, the requirements for landscape are getting higher and higher. In order to improve the landscape effect along the bridge, the most common method is to set up flower ponds for planting landscape plants outside the crash barriers, and plant plants for landscape greening in the flower ponds. [0003] In the prior art, the construction method of the anti-collision guardrail of the bridg...

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Problems solved by technology

Its advantages lie in its good durability, integral pouring, good landscape effect, soil can be cultivated in the flower pond, and flowerpots can also be placed; but its disadvantages are: first, it is necessary to build additional formwork and tie additional Steel bars make the construction process more complicated; second, the construction space of the flower pond is narrow, and ordinary steel bars need to be arranged, with many chamfers and complex formwork, which is unfavorable for construction; third, the material is ordinary concrete, and the flower pond structure itself is heavy (The volume of this part is about 0.35m 3 / m, the weight is about 9.1kN / m), and it is outside the crash barrier, which is unfavorable to the force of the cantilever panel of the structure, which affects the distribution of the structural reaction force.

However, this kind of steel structure flower pond is generally fixed by implanting anchor bolts or steel bars after the pouring of the anti-collision barrier is completed. This implantation method is troublesome in construction and has low reliability.

On the other hand, ordinary steel or stainless steel can be used for steel structure materials. If ordinary steel is used, it needs to be painted regularly to maintain its durability. If stainless steel is used, although the durability is good, the price is very high, so it has not been widely popularized

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