RU2227198C2 - Method of reinforced concrete structure building with the use of sliding forms - Google Patents

Abstract

FIELD: construction industry, particularly building construction of cast-in-place reinforced concrete with the use of sliding form. SUBSTANCE: method involves installing intermediate form panels having lifting eyes into gap between base form panels and hardening concrete layer, arranging gap into design position and releasing partition panel having lifting eyes connected thereto by spacers, securing lifting eyes into position in which intermediate form panels are snug against sliding form panels; placing lower partition panel edge between compacted concrete layers of different composition along contact line thereof on the depth of 1-2 sm; filling cavities between intermediate panels with concrete mixture to form base structural layer and concrete mixture to form heating layer of macro-porous concrete; removing spacers and partition panel just after concrete layers consolidation; precipitating concrete mixture up to concrete mixture adjoining to construction layer concrete which results in filling of the gap created after partition panel removal; consecutively removing intermediate panels, locating intermediate panels in new position, repeating the above operations. EFFECT: possibility of multi-layered wall construction of several concrete layers having different structural and heat properties. 6 dwg

Description

The invention relates to the field of construction and can be used in the construction of residential, public and other types of heated buildings, the walls of which are made of reinforced concrete in a sliding formwork.

A known method of forming reinforced concrete structures in a sliding formwork by installing intermediate panels in the formwork, followed by laying and compacting the concrete mixture, removing and rearranging the intermediate panels (USSR, AS No. 483505, published 05.09.1975, class E 04 G 11 / 22).

This method is intended for forming single-layer walls with concrete characteristics that are uniform in thickness and do not allow efficient multi-layer wall structures to be performed, which are especially relevant for solving the problem of building heat-insulating vertical and external building fences that meet the conditions of increased regulatory requirements for building heat engineering.

The technical problem to which the invention is directed is the molding of multilayer outer walls of heated buildings from layers of monolithic concrete with various structural and thermal characteristics. Such walls have economic efficiency by increasing their resistance to heat transfer with a minimum thickness and the inclusion of cheap and non-deficient materials with a mineral base in the composition of the structures of these walls.

The problem is solved in that in the method of forming reinforced concrete structures, mainly walls, in sliding formwork by installing intermediate panels in the formwork, followed by laying and compacting concrete mixtures, after installing intermediate panels, separating shields are installed using spacers along the longitudinal axis of the concrete wall or across it at various angles to a depth of 1-2 cm between the layers of laid and compacted concrete mixtures, then the concrete mixture of the bearing layer is laid in the cavities between them I and the concrete mixture of the insulation layer, compact them, after which the separation plates are removed, the concrete mixture of the insulation layer is precipitated, then the intermediate panels are removed and installed in the new concreting section.

1, 2 schematically shows a molding cavity with intermediate shields and a dividing shield placed therein before and after concreting.

In Fig.3, 4 - the same, when alternately removing the dividing plate and additional deposition of the concrete mixture of the insulation layer with a special device (for example, a plate-plate that distributes vertical shock pulses), which are carried out after laying and compacting concrete mixtures of various compositions.

In Fig.5, 6 - the same when alternately removing the intermediate panels after laying and compacting concrete mixtures of various compositions.

The intermediate panels 1 with the lifting loops 2 attached to them are installed in the gap between the panels of the sliding formwork 3 and the hardening concrete. Then, between them they are installed in the design position and the spacers 5 with the lifting loops 2 attached to it are fastened with spacers 4 and fixed in a position in which the intermediate shields 1 fit snugly against the sliding formwork shields and the dividing plate is immersed with the lower edge between the layers laid and compacted concrete mixtures of various compositions along the line of their contact to a depth of 1-2 cm.

Further, the cavities between the intermediate shields 1 and the separation shield 5 are filled with concrete mixture of the structural bearing layer 6 and concrete mixture of the insulating layer of large-porous concrete 7. Apply such a mode of compaction, in which hardening concrete in the underlying layers does not collapse. Immediately after the compaction of the concrete layers is completed, the spacers 4 and the separation plate 5 are removed, after which the concrete mixture of the insulation layer is precipitated with a special device 8 until it snugly adheres to the concrete of the structural layer as a result of filling the gap formed after the separation plate was removed. At the end of the upsetting of the concrete mixture of the insulation layer, the intermediate shields 1 are removed and installed in turn on a new concreting site, on which the whole complex of the works described above is repeated.

When installing connecting transverse reinforcing bonds between adjacent reinforced concrete layers of the wall being formed, the dividing shields are made with longitudinal horizontal dimensions corresponding to the distances between these reinforcing bonds or with vertical slots starting at a predetermined distance from the upper edge of the shields, passing to the lower edges of these shields and allowing unhindered vertically remove the shields from the molding cavity after laying and compacting the concrete layers.

The proposed method allows the molding of the multilayer outer walls of heated buildings from layers of monolithic concrete with various structural and thermal characteristics.

Claims (1)

A method of forming reinforced concrete structures, mainly walls, in a sliding formwork by installing intermediate boards in the formwork, followed by laying and compacting concrete mixtures, removing and rearranging the intermediate boards, characterized in that after installing the intermediate boards, spacer plates are installed using spacers along the longitudinal axis of the concrete wall or across it at different angles to a depth of 1-2 cm between the layers of laid and compacted concrete mixtures, then they are laid in the cavity between them b ton mixture of the carrier layer and the insulation layer concrete mix, densifying them, then removed dividing flaps face down concrete mix the insulation layer, and then successively extracted and set at a new concreting section intermediate panels.

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