CN1077408A - Cement Concrete Formwork and Its Casting Method - Google Patents

Abstract

The invention relates to a template for cement concrete building member construction and a casting construction method thereof. The standard templates are square or rectangular boxes with smooth front surfaces and criss-cross reinforcing ribs on back surfaces, and can be manufactured in factories, so that the time is saved, the labor intensity for assembly is low, the cost is greatly reduced, the templates are not easy to damage after being disassembled, the service life is long, the surface precision of the plastic or metal templates is higher than that of wood templates, and the shape and the size of the building components are easy to guarantee.

Description

The invention relates to a formwork for the construction of cement concrete building components and a pouring construction method thereof, in particular, it is suitable for the formwork manufactured in a factory and then assembled into a required formwork frame on site to cast the cement concrete building components.

At present, the common construction methods of cement concrete buildings are all on the construction site. The skilled workers first cut out the timber formwork according to the construction blueprint, and then use steel nails and iron wires to connect each formwork one by one to form a formwork block. It is made by skilled workers with manual skills. Therefore, the labor intensity is high and the cost is high. At the same time, the accuracy of the wood formwork is limited, and because the material is easily corroded by the alkaline water molecules containing the mud, and after the grout is dry, it is difficult to disassemble and assemble. It is difficult to pull out the connecting steel nails, resulting in waste of materials.

In view of this, the purpose of the present invention is to provide a cement concrete formwork and its pouring construction method, which can be manufactured into standardized plastic or metal formwork in the factory, can be easily combined into formwork blocks on the spot, and assembled into various cement concrete forms for pouring and casting. Models of concrete building components.

The object of the present invention is achieved like this: its construction method step:

1. Cast several square or rectangular standard templates in the factory. The front is a smooth plane, the back is criss-cross ribs, and there are several evenly spaced dovetail grooves around the periphery, and a bolt hole is set in the plane symmetrical center of the template. ;

2. Align the square or rectangular formwork according to the front of the formwork, connect it to the corresponding dovetail groove on the opposite side of the adjacent formwork with dovetail keys, and connect them one by one to form a required planar formwork block;

3. Then, connect the dovetail grooves of the vertical intersecting sides of the plane formwork frame with dovetail keys, and connect various plane formwork blocks perpendicular to each other according to the shape of the building components;

4. Then use bolt connectors to connect the opposite and parallel plane formwork blocks to form the model of cement concrete building components;

5. Finally, pour the cement concrete slurry into the model to obtain the cement concrete member to be poured.

Due to the adoption of the above scheme: time saving, low assembly labor intensity, greatly reduced cost, flexible use, and at the same time, the formwork is accurate in size and durable.

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

FIG. 1 is a schematic perspective view of the first embodiment of the present invention.

Fig. 2 is a schematic perspective view of the second embodiment of the present invention.

Fig. 3 is a schematic perspective view of a third embodiment of the present invention.

FIG. 4 is a schematic perspective view of a fourth embodiment of the present invention.

Fig. 5 is a schematic perspective view of a fifth embodiment of the present invention.

Fig. 6 is a schematic perspective view of a sixth embodiment of the present invention.

FIG. 7 is a schematic perspective view of a seventh embodiment of the present invention.

Fig. 8 is a schematic diagram of cement concrete members according to one to seven embodiments of the present invention.

Fig. 9 is a schematic diagram of the template structure of the present invention.

Referring to Fig. 9, the square or rectangular formwork 20 is a box-shaped plate body cast by plastic or metal. Evenly distributed dovetail grooves 201 are provided to cooperate with dovetail keys to connect adjacent templates 20 to form planar template blocks. A bolt hole 202 is provided at the symmetrical center of templates 20 so that bolts 23 can be used to connect the plane relative to each other. The two parallel templates 20 are fixed together at intervals.

Referring to Fig. 1, a plurality of templates 104 are divided into two groups, and are connected into two planar template blocks 101, 103, and two parallel template blocks 101, 103 opposite to each other are connected with bolt connectors 102 as a whole. The distance between the formwork blocks 101 and 103 is equal to the thickness of the wall to be grouted, and the bolt connector 102 also plays a role in bearing the tension along the horizontal direction on both sides when pouring concrete; and because the opposite surface of the formwork 104 is a smooth plane (plastic or metal surface), so the two formwork modules 101, 103 form an integral smooth wall. The surface of the more common wood formwork is smooth and flat. Generally, the surface of the wood formwork needs to be plastered with cement powder before it can be attached to the bricks, while plastic or The metal formwork can be directly painted on the exterior wall or pasted with bricks, thus shortening the construction time and reducing the cost.

Referring to Fig. 2, the formwork 200 is connected with its peripheral dovetail grooves and corresponding dovetail keys to form two upright formwork blocks 201, 202, and then between the two upright formwork blocks, a horizontal formwork block is also connected with a dovetail key 203, the distance between the two upright formwork blocks 201, 202 is equal to the width of the crossbeam member 2 formed by grouting, and the formwork blocks parallel to each other are fixed with bolts to form the length and height of the crossbeam, which can be improved by increasing or decreasing the formwork. control.

Referring to Fig. 3, between two groups of template blocks 300, 301 opposite in vertical position, add another group of template blocks 302, connect a horizontal template block 303 between the top of the template block 302 and the template block 300, mutually The parallel templates are fixed with bolt connectors, cement concrete slurry is poured into the template blocks 301, 302, 303, 300, and the space forms a member 3 (beam).

Referring to Fig. 4, formwork blocks 401, 402, 403, 404 placed in the vertical direction form an upright columnar structure, wherein a gap 405, 406 is spaced apart from one side of the formwork blocks 401 and 402, and just It is the width of the concrete wall that it extends and connects. From here, the upright formwork blocks 407, 408, 409 in the embodiment shown in the above-mentioned Fig. 1 and Fig. 2 can be connected left and right to complete a middle column and A structure with walls combined, and then pour cement concrete slurry between the models to obtain component 4 (connected walls and intermediate columns).

Referring to shown in Figure 5, its structure is roughly the same as that shown in Figure 4 above, only its gap 405 is arranged on one side of the template block 404, similarly, the gap is maintained at the size of the thickness of the wall to be grouted, and from here Extend the connection to both sides, such as the upright formwork blocks 407 and 408 of the embodiment shown in FIG. 1 , and then pour cement concrete slurry between the models to obtain the component 5 (connected walls and intermediate columns).

Referring to Fig. 6, with the above-mentioned upright columnar casting model 600 of the embodiment shown in Fig. 4 and Fig. 5, in addition, four pieces are connected at the top position with the beam model 601, 602, 603, 604, wherein, all the structural models of the embodiment shown in Fig. 2 that are basically constituted by the upright column can be constructed on the construction site. Falling into the cement concrete slurry, the structure 6 in which the intermediate beams and columns in general building construction are combined can be obtained.

Referring to Fig. 7, the formwork frame of the embodiment shown in above Fig. 1 is surrounded into a square hollow body 701, a support frame 70 is arranged in the middle, and the horizontal formwork frame 700 is fixed on the support frame 70 to form a casting After pouring the cement concrete slurry into the model of the exterior wall and ceiling, the components 7 of general building construction and ceiling can be obtained.

In summary, the advantage of the construction method of the present invention is that standard square or rectangular templates (accounting for 90% of the workload of making the entire building component model) can be cast in the manufacturing plant according to the requirements of the building construction drawings in advance, so , the workload of on-site construction is greatly reduced, the difficulty of manufacturing models is reduced, and time and labor are saved at the same time. The surface precision of plastic and metal casting formwork is high (compared with wood formwork), and the shape and size of the model are easy to meet the requirements. The model can be moved and disassembled and is not easy to be damaged, so the service life is longer; a standard template can be combined into models of different shapes, the model utilization rate is high, and the cost is greatly reduced.

Claims (5)

1. A cement concrete formwork and its pouring construction method, characterized in that: a standard formwork can be assembled into plane formwork blocks of different shapes, and then combined into models of different shapes and structures, and buildings of different shapes can be poured component, the steps of its construction method are, 1. Cast several square or rectangular standard templates in the factory. The front is a smooth plane, the back is criss-cross ribs, and there are several evenly spaced dovetail grooves around the periphery, and a bolt hole is set in the plane symmetrical center of the template. ; 2. Align the square or rectangular formwork according to the front of the formwork, connect it to the corresponding dovetail groove on the opposite side of the adjacent formwork with dovetail keys, and connect them one by one to form a required planar formwork block; 3. Then, connect the dovetail grooves of the vertical intersecting sides of the plane formwork frame with the dovetail key, and connect various mutually perpendicular plane formwork blocks according to the shape of the building components; 4. Connect the front opposite and parallel plane formwork blocks with bolt connectors to form the model of cement concrete building components; 5. Finally, pour the cement concrete slurry into the model to obtain the cement concrete member to be poured. 2. The cement concrete formwork and pouring construction method thereof according to claim 1 is characterized in that: the model of the above-mentioned combination is that several formworks are divided into two groups, and the fronts are relatively assembled into two spaced parallel formwork blocks. The two templates are fixed together with bolted joints, and the distance between them is the thickness of the wall to be poured. 3. The cement concrete formwork and pouring construction method thereof according to claim 1, characterized in that: the above-mentioned model is formed by connecting formwork blocks placed in the vertical direction to form two upright formwork blocks, and connecting a horizontal and horizontal formwork block between the two formwork blocks. plate. 4. The cement concrete formwork and its pouring construction method according to claim 1, characterized in that: the formwork blocks placed in the vertical direction are respectively connected to the formwork blocks with symmetrical sides and short length to form an upright Shaped structure, and a gap is formed on one side of the formwork block, the size of which is the width of the concrete wall to be poured. 5. The cement concrete formwork and its pouring construction method according to claim 2, characterized in that: at half the height of the parallel formwork blocks combined by the above two parallel formwork blocks, support beams or columns are placed in the horizontal direction to form a building. model of the building's ceiling components.

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