Anti-deformation reinforcing system for inflatable core mold and installation construction method thereof

Abstract

The invention relates to an anti-deformation reinforcing system, in particular to an anti-deformation reinforcing system for an inflatable core mold and an installation construction method thereof. The anti-deformation reinforcing system comprises an outer mold device, an inner mold mechanism and a positioning and reinforcing device, wherein the inner mold mechanism is arranged in the outer mold device in a sleeved mode, and the positioning and reinforcing device is arranged between the outer mold device and the inner mold mechanism; a U-shaped structure casting cavity is formed between the outer mold device and the inner mold mechanism; an outer mold base is of an open cavity structure composed of two side mold plates, two supporting baffles and a bottom surface cushion layer; the positioning and reinforcing device comprises triangular steel, positioning ring stirrups, main fixing ribs, a T-shaped frame and a flexible reinforcing member; and an inner mold installation cavity is defined by the positioning ring stirrups and the main fixing ribs. According to the anti-deformation reinforcing system and the installation construction method thereof, the main fixing ribs are limited andlongitudinally positioned in positioning holes in the supporting baffles, the inner mold mechanism is connected to the outer mold device through the T-shaped frame so as to be limited and transversely positioned, and therefore the influence of the buoyancy on the inner mold mechanism is reduced; and the inner mold mechanism comprises two layers of structures, namely an inner mold and an outer mold, an inflatable inner core is arranged between the inner mold and the outer mold, and therefore deformation of an inflatable outer mold is reduced, and the service life of the inner mold mechanism isprolonged.

Description

technical field [0001] The invention relates to an anti-deformation reinforcement system, in particular to an anti-deformation reinforcement system for an inflatable mandrel and an installation and construction method thereof. Background technique [0002] A culvert is a small surface drainage structure across the roadbed that is set when the roadbed passes through a depression or crosses a ditch (canal), or for the water flow gathered above the roadbed to vent to the bottom. It is a widely used on road Man-made structures; culverts are composed of two parts: the cave body and the entrance. The entrance includes the entrance and exit. The cave body is the main part of the culvert. At both ends, in order to improve the on-site construction speed of culverts, prefabricated culverts are generally used at present, and then quickly spliced ​​on site. Conventional culvert construction uses combined steel inner and outer molds to mold the walls on both sides, and finally lay two wa...

AI Technical Summary

Problems solved by technology

[0002] A culvert is a small surface drainage structure across the roadbed that is set when the roadbed passes through a depression or crosses a ditch (canal), or for the water flow gathered above the roadbed to vent to the bottom. It is a widely used on road Man-made structures; culverts are composed of two parts: the cave body and the entrance. The entrance includes the entrance and exit. The cave body is the main part of the culvert. At both ends, in order to improve the on-site construction speed of culverts, prefabricated culverts are generally used at present, and then quickly spliced ​​on site. Conventional culvert construction uses combined steel inner and outer molds to mold the walls on both sides, and finally lay two walls on the top The upper end of the body to form a slab culvert, or use prefabricated formwork or steel formwork trolleys to construct culverts, but the installation, reinforcement, and disassembly of combined steel inner and outer forms are complicated, and the cost of prefabricated formwork or steel formwork trolleys is high and the construction period is long. To meet the requirements of the construction period, referring to the prefabricated hollow slab inner hole rubber mandrel technology, a construction plan using rubber inflatable mandrel as the inner mold of the culvert is proposed; the inflatable mandrel is also called bridge inflatable mandrel and rubber inflatable mandrel. The inflatable mandrel is An expandable and shrinkable cylindrical bag made of vulcanized rubber and fiber reinforced layer, with high tensile strength, elasticity and airtightness, used to form the cavity of concrete components. When manufacturing hollow components, the It is placed in the middle and filled with compressed air. After inflation, it has enough strength to withstand the pressure of concrete. It can replace the original wooden mold, bamboo mold, and steel mold. The capsule shrinks when the valve is opened, and can be released from the cavity. Pull out the capsule, which is easy to use, economical and durable, can be reused many times, can be soft and shrinkable when not inflated, can be folded and curled at will; the inflatable mandrel is suitable for pumping holes in reinforced concrete components, including piles, roof trusses, roof panel columns, Beams, construction projects, water conservancy projects (docks, slipways, wharves); construction practice has proved that the inflatable mandrel pumping process equipment is simple, saves materials, and the shape of the inflatable mandrel can be changed, and can be round, oval, rectangular, Arched, octagonal, trapezoidal and other shapes; the inflatable mandrel provides favorable conditions for lightweight construction on the building site; in the construction process, the production of prestressed hollow concrete components, if the inflatable mandrel is used, its weight is lower than that of non-prestressed solid components It is 20% lighter, so reducing the weight of the upper structure of the building can shorten the pile foundation and increase the span, and the on-site construction is simple and safe; the construction process of the inflatable mandrel is simple, safe, and low in cost. Shorten the construction period of the culvert to meet the requirements of the construction period, but in the process of concrete pouring, the inflatable mandrel is easy to float or deform, which affects the quality of the prefabricated culvert, and is prone to "easy deformation", "poor buoyancy resistance" and "difficult demoulding" various construction problems

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