Template supporting system for narrow space of building concrete structure

Abstract

The invention discloses a template supporting system for a narrow space of a building concrete structure. The template supporting system comprises two pieces of C-shaped steel which are symmetrically arranged, wherein through holes are formed in the center of upper and lower pressing plates; a lead screw is arranged in the through holes; a wedge-shaped supporting mechanism is serially arranged on the lead screw; and the template supporting system comprises the following two working positions, namely (1) an opening working position, wherein the lead screw is rotated, so that a wedge-shaped pin moves upwards, a wedge-shaped supporting pin opens the matched movable supporting pairs, the movable supporting pairs push the two pieces of C-shaped steel on two sides to be ejected outwards simultaneously so as to reach the opening working position, and (2) a shrunk working position, wherein the lead screw is reversely rotated, so that the wedge-shaped pin moves downwards and retracts from the matched movable supporting pairs, the movable support is reset inwards under the action of own gravity, and the two pieces of C-shaped steel on two sides are reset inwards under the action of a tension spring so as to reach the shrunk working position. The novel template supporting system for the narrow space of the building concrete structure can be applied to the building process of expansion joints in double shear walls, facade models with narrow spaces in buildings and the like.

Description

technical field [0001] The invention relates to a formwork support system used in a narrow space of a building concrete structure, which belongs to the field of construction. Background technique [0002] At present, the construction industry has been greatly developed, and the shapes and structures of buildings are becoming more and more beautiful. For narrow spaces of architectural concrete structures, such as expansion joints in double shear walls, facade shapes with narrow spaces in buildings, etc., formwork support systems are required. [0003] The traditional formwork support system is mainly a wooden box made of wood, with foam material sandwiched in the middle. The support system of this structure is easy to cause concrete overflow during actual construction, and finally results in many debris in the structural deformation joints, and the shape of the entity is different from that of the other. Defects such as large gaps are expected, and it is difficult to clean u...

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Problems solved by technology

[0005] However, the rhombic jack of the above structure and its series structure have the following disadvantages: (1) for a general double shear wall, it has a certain height, so the series structure of multiple rhombic jacks generally needs to be used in it, On-site assembly is required, which is time-consuming and laborious; (2) Since the support arms of the diamond jack are hinged through the left and right hinged shafts, and the left and right hinged shafts are connected through screw rods, the force on the upper and lower jacks will pass through The supporting arms on both sides and the left and right hinged shafts finally fall on the screw rod, so the above-mentioned support system has extremely high requirements on the strength of the screw rod

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