CN2305454Y

CN2305454Y - Disassembling-free framework for concrete column and beam

Info

Publication number: CN2305454Y
Application number: CN 97239965
Authority: CN
Inventors: 柏飞
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-08-14
Filing date: 1997-08-14
Publication date: 1999-01-27
Anticipated expiration: 2007-08-14

Abstract

The utility model belongs to a building template which is a special non-dismantling template for a concrete column and a concrete beam. The template is an L-shaped template made of fibred concrete, the cross section forms a right angle, wherein the two outer planes of the template are respectively used as two adjacent outer planes of the concrete column and the concrete beam. When the utility model is used, two L-shaped templates are oppositely buckled, a column body outer mold is formed, and then concrete is poured. After the concrete is congealed, the outer mold is connected integrally with a column body, and the needed concrete column and the concrete beam are formed. Accordingly, the demoulding procedure is omitted.

Description

The non-dismantling formwork of concrete column beam

The utility model belongs to building form, particularly a kind of non-dismantling formwork that is exclusively used in concrete column, beam.

At present, concrete blinding for building adopts steel, wood or wooden bamboo composite plate to make basically, and is plane-shaped structure, earlier will be when using this class template construction with the amalgamation of several piece template, surround the external mold of post, beam, fluid concrete also needs form removable after solidifying again.So the operation of this present class template is more, construction period is longer, and the every usefulness of template once or for several times also need be repaired.Unit in charge of construction all will prepare a large amount of templates and has enough to meet the need and change generally speaking.Chinese patent CN1152653A discloses a kind of concrete casting injection formation technology, and it provides a kind of concrete model of hollow, the concrete shell of sealing around this model is actually.After this model splicing becomes the column shell, to fluid concrete wherein, the concrete of model and cast is connected as a single entity again, constitutes column or beam.But also there is following problem in this model: 1. this model is used concrete for making fully, so wall is thicker, the external surface of cast rear pillar is inevitable bigger apart from the distance of reinforcing bar, forms fat beams and columns; 2. need when this model is constructed be inserted in, so construction bothers from the top of reinforcing bar post; 3. this model is equivalent to the shell of a sealing, and easily the fluid concrete that shrinks when solidifying is thrown off, thereby loses due effect.

The purpose of this utility model provides a kind of construction of being convenient to, and can with the concrete body concrete column that firmly be connected as a single entity of cast, the non-dismantling formwork of beam.

The purpose of this utility model is to realize by following approach: the concrete column that is provided, the non-dismantling formwork of beam are to adopt that to add the cross section that fibrous concrete makes be right angle " L " shape template, and wherein two of this template outerplanars are respectively as two of concrete column, beam adjacent outerplanars.

For concrete column, the beam that adapts to the different section shape, be square or rectangular as section, the cross section of this template can be equilateral right angle " L " shape or inequilateral right angle " L " shape.

With two opposed fastenings of " L " shape template, form a cylinder external mold during use, and then fluid concrete, solidify the back external mold and promptly hold together, form required concrete column, thereby saved the form removal operation with the body of post.

Compared with prior art, the utility model is because section be " L " shape, thus need not " cover reinforcing bar " but be fastened on reinforcing bar outside, thereby it is very convenient to construct.In addition, this template adopts " L " shape section, and seam is arranged during fastening, so can apply the material that deformability is arranged of class sapropelitic and so at seam crossing, forms the shrinkage joint.Like this, template " yielding " thereupon so template can be bonded together securely with body, had been avoided the segregation phenomenon of the formwork shell and the body of prior art when the concrete body of cast shrank in sclerosis.The utility model adopts fibrous concrete to make, and its intensity, toughness are better, so the thickness of template can be done thinlyyer, but also can cut into different length as required easily.

Below in conjunction with accompanying drawing content of the present utility model is illustrated.

Fig. 1 is a structure chart of the present utility model.

Fig. 2 is to use the profile of this template fluid concrete post.

Stereoscopic-state figure when Fig. 3 is the use of this template.

Fig. 4 is to use the schematic diagram of this template fluid concrete beam.

As shown in Figure 1: the cross section of this template 1 is right angle " L " shape.The length on one side 2 wherein and the equal in length of another side 3.This template can adopt the platen press of shaking disclosed in the patent CN97108630 that the inventor applied for, rolling process to make, and also can adopt traditional mold technique that turns over to make certainly.Mould material uses the existing fibrous concrete that adds, and as glass fiber, steel fibrous concrete or add fiber magnesite concrete etc., cement strength label wherein should be identical with the cement grade of concrete column, beam or close, so that combine better.

Fig. 2, Fig. 3 have provided the example that uses this template fluid concrete post.Be fastened on the outside of reinforcing bar post 4 at the construction field (site) with this template 1, with the boundary seam 6 of adhesive tape 5 sealing labels two templates.Should be coated with one deck flexible glue (pitch also can) during fastening at seam 6 places, so that template 1 displacement with the sclerosis contraction of the concrete body 7 of cast avoids template 1 and body 7 to throw off.Two templates are buckled into a shell of column, and the seam 6 of adjacent two shell of columns should stagger mutually.

Fig. 4 has provided the example that uses this template to annotate the pouring concrete beam.Use two " L " shape templates 1 opposed overlapping at the construction field (site), form at the bottom of the dual stack " II " shape groove of 9, reinforcing bar 8 is arranged in groove, the bonding surface of the bottom land lamination plain slurry of cementing.9 can directly support base plate at the bottom of this lamination.For the big beam of section, can adopt how opposed overlappingly to " L " shape template, form at the bottom of the multiple lamination, so that increase support strength.

With the concrete column of the utility model cast, the surfacing of beam, the defective of thoroughly having avoided reinforcing bar to expose, and construction period is shortened.

Claims

1, the non-dismantling formwork of a kind of concrete column, beam, it is characterized in that said template (1) is to adopt that to add the cross section that fibrous concrete makes be right angle " L " shape template, wherein two outerplanars of this template (1) are respectively as two of concrete column, beam adjacent outerplanars.

2, template as claimed in claim 1, the cross section that it is characterized in that said template (1) are equilateral right angle " L " shapes.

3, template as claimed in claim 1, the cross section that it is characterized in that said template (1) are inequilateral right angle " L " shapes.