Insulation superimposed plate and construction method

Abstract

The invention discloses an insulation superimposed plate and a construction method. The insulation superimposed plate is characterized in that embedded nylon parts and supporting and pulling rods are arranged, the embedded nylon parts are provided with connecting rods and connecting discs, connecting grooves are formed in the end faces of the connecting discs, one end of each connecting rod is connected to the corresponding connecting disc, a threaded hole is formed in the other end of each connecting rod, the connecting rods penetrate through an extruded sheet and an adhesion agent layer and stretch out, the connecting discs are clamped on a steel wire mesh through the connecting grooves, the connecting discs and parts of the connecting rods are wrapped in a concrete layer, the supporting and pulling rods are steel ribs and are connected with the connecting rods through threads, and hooks are arranged at the other ends of the supporting and pulling rods. The construction method comprises the steps that insulation superimposed plates are spliced into a part with the size identical with beams, columns and shear force of a frame of an external wall part and are combined with formworks to form a mould, the supporting and pulling rods abut against the corresponding formworks, concrete is poured into the mould, the formworks are then demounted, and the insulation superimposed plates and the concrete form a whole. Construction is convenient and low in cost, and the potential quality hazards such as bulging, cracking, water seepage and disengagement caused by complex operation processes can be avoided to the maximum.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and in particular relates to a thermal insulation laminate integrated with the concrete of the main structure and a construction method thereof. Background technique [0002] At present, in domestic industrial and civil construction projects, the external insulation of structural engineering such as frames, bent frames, and shear walls is mostly pasted or sprayed with organic or inorganic insulation materials, such as pasting XPS insulation boards, spraying polyurethane foam, etc. These methods have many procedures, heavy engineering construction and management tasks, and are prone to problems such as hollowing, cracking, water seepage, and shedding. Polystyrene foam plastic board cast-in-place concrete external wall external insulation system and steel wire grid polystyrene foam plastic board cast-in-place concrete external wall external thermal insulation system, the insulatio...

AI Technical Summary

Problems solved by technology

[0002] At present, in domestic industrial and civil construction projects, the external insulation of structural engineering such as frames, bent frames, and shear walls is mostly pasted or sprayed with organic or inorganic insulation materials, such as pasting XPS insulation boards, spraying polyurethane foam, etc. These methods have many procedures, heavy engineering construction and management tasks, and are prone to problems such as hollowing, cracking, water seepage, and shedding.

Polystyrene foam plastic board cast-in-place concrete external wall external insulation system and steel wire grid polystyrene foam plastic board cast-in-place concrete external wall external thermal insulation system, the insulation board and the wall are poured and formed at the same time, the construction is fast, safe and firm It has become the biggest advantage that other systems do not have; but it also has poor fire resistance due to the lack of or thin interface agent on the board surface, and the lack of transitional buffer materials between the wall exterior finish and the insulation board. The facing layer is easy to crack and other problems, which in turn affects the application of this system

In addition, the technical requirements of the cast-in-place thermal insulation system require the use of tool-type steel formwork, which also limits this type of system to a certain extent. Chinese patent CN103243827A discloses a composite thermal insulation laminated board, which includes polystyrene (extruded) Plates, connecting steel wires, steel wire mesh, lightweight composite concrete layer, interface agent layer and anchor bolts, the surface of the polystyrene (extruded plastic) board is provided with an interface agent protective layer, and one side of the polystyrene (extruded plastic) board is covered with steel wire mesh , the high-strength connecting steel wire is inserted obliquely into the polystyrene (extruded plastic) board, one end of the connecting steel wire is welded to the steel wire mesh, and the length of the other end protruding out of the extruded plastic board is not less than 2-5mm, and the light composite concrete layer wraps the steel wire mesh And it is connected with polystyrene (extruded plastic) board. On the one hand, the connecting steel wire plays the role of connecting with the main structure, and on the other hand, it plays the role of connecting the steel wire mesh with the extruded plastic board. Due to the existence of the connecting steel wire, its production process costs The labor is time-consuming, which increases the weight and production cost of the composite thermal insulation laminated board, increases the cold bridge of the composite thermal insulation laminated board, and reduces the energy-saving index; in addition, in order to connect the composite thermal insulation laminated board with the main structure, additional anchor bolts are added during construction. The anchor bolt is inserted into the concrete layer, interface agent protection layer and polystyrene (extrusion) board and protrudes 30mm. The front end of the anchor bolt is provided with a fastening expansion wire, which is combined with the body structure concrete. Anchoring, cumbersome construction, troublesome operation, and low work efficiency. Second, when the anchor bolts are inserted, the insulation performance of the extruded board is destroyed, and the insulation effect is poor. It acts as a tie, and does not work when prefabricating frame beams, columns, and shear walls

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