A prefabricated combined steel mold for reinforced concrete arch slab and its assembly process

Abstract

The invention discloses a precasting and shaping combined steel mold of a reinforced concrete arch board. The mold comprises a cement ground mold, two sets of arch board support components mounted on the cement ground mold through foundation bolts and positioned at the two edges of the cement ground mold, a plurality of support beams and connecting rods mounted between the two sets of arch board support components through bolts and used for connecting the two, a plurality of upper arch bottom molds mounted on the support beams, and inner side molds and outer side molds mounted on the cement ground mold and the support beams and fixed by inner clamps and outer clamps, wherein the arch board support components are formed by connecting arch heads, arch bodies and arch tops through bolts; and spacing plates are mounted between the adjacent upper arch bottom molds. The steel mold is quick in production, is low in cost, and is faster by 2-3 times in production compared with a traditional template; the combination is adopted, and the bolts are used for fastening, so that the assembly is quicker by 3-4 times, and the mold release only needs half an hour; the precasting efficiency is high, the efficiency is improved by 2-3 times, and the template investment is reduced when the construction period is shortened; and the worker operation is convenient, the quality of arched boards is good, the template can be used for a long time, and the cost of the arch boards is reduced above 30%.

Description

technical field [0001] The invention relates to a reinforced concrete arch slab prefabricated part mold, in particular to a reinforced concrete arch slab prefabricated combined steel mold and an assembly process thereof. Background technique [0002] Reinforced concrete arch slabs are mainly used for building material warehouses. The roof is assembled from multiple prefabricated arch slabs. There are five main spans, 12 meters, 15 meters, 18 meters, 21 meters, and 24 meters. Consisting of trough-shaped slabs, partitions, steel tie rods, and hooks, it is formed by one-time pouring and tamping. Due to the large span and many slab nodes, it is a special-shaped prefabricated component, and the construction is difficult. The prefabrication method mainly adopts two kinds of formwork structures: one is an all-wooden formwork; the other is a wooden formwork (composed of several pieces) for the upper arch, and the steel pipe support frame is buckled on site, which is a steel-wood mix...

AI Technical Summary

Problems solved by technology

The prefabrication method mainly adopts two kinds of formwork structures: one is an all-wooden formwork; the other is a wooden formwork (composed of several pieces) for the upper arch, and the steel pipe support frame is buckled on site, which is a steel-wood mixed formwork; the disadvantages of the above two forms It is: 1. It takes a long time to make the formwork, consumes labor, the amount of material is large, and the cost is too high, accounting for more than 40% of the cost of the arch slab; 2. The prefabrication efficiency is low, and the time from pouring to demolding is long; 3. The service life of the formwork is short. The construction is difficult, the prefabrication speed is slow, and the construction period is long, which is a difficult problem for arch slab prefabrication

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