CN200952217Y

CN200952217Y - Concrete support

Info

Publication number: CN200952217Y
Application number: CN 200620127710
Authority: CN
Inventors: 秦瑞奇
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-09-23
Filing date: 2006-09-23
Publication date: 2007-09-26
Anticipated expiration: 2016-09-23

Abstract

A concrete support belongs to the technical field of preformed structural part in construction. The utility model provides a concrete support which can replace steel support and can be made of residual concrete during construction to reduce consumption of raw material and protect environment. The support body is a polyhedron column or table and has a top surface in parallel to a bottom surface. In the utility model, residual concrete at casting field is in situ made into concrete support so that construction raw materials such as concrete and steel are saved to reduce construction cost of buildings, construction waste is reduced to protect environment. The novel concrete support has good micro-swelling property and high binding force, and does not generate cracks when the steel-borne lower concrete body is under pressure. By reasonably performing the concrete support and pre-burying connecting steels, shearing resistance of inclined steel is achieved to make the constructive structure generate small stress, thereby reducing flexibility of the concrete plate.

Description

The concrete split heads

Technical field

The utility model relates to a kind of concrete split heads, belongs to the building prefabricated components technical field.

Background technology

The split heads of existing roof supporting button muscle all is to use the support that is welded by reinforcing bar supporting leg, reinforcing bar crossbeam, and in each, major works only this item just needs to use nearly ten tons of steel, cost is higher.In addition, in the building operations operation, the concrete casting and constructing tends to remain a small amount of concrete after finishing, and can not rationally utilize and will produce solid refuse, increases engineering rubbish output.For a long time, the engineering rubbish of bulk deposition can not be degraded, and takies a large amount of soils, the ecological environment that the mankind of heavy damage simultaneously depend on for existence.So how rationally to utilize engineering construction residue concrete and residue cement mortar, be the problem that must think better of in the building operations operation.Way in the past, usually be that residue concrete (or the residue mortar adds cement, stone mixes and stirs into concrete) is used for precast lintel, window sill, road tooth brick, cement tile etc., also can be used for pouring into a mould and remain the position in the primary structure, as the constructional column in the window that wafts, breast board and the secondary structure, collar tie beam etc., or be used for local flooring, step base etc.But need handle the formality of applying for checking and examination toward contact, ask supervisor, Construction unit to check, organize to no plan workman's construction of working overtime, cause and tiredly construct and be easy to generate hidden dangers in project, and the time regular meeting remain the concrete that two, three spades utilize nowhere.Therefore most of building sites are often all abandoned a large amount of surplus concretes, certainly will cause like this to produce a large amount of building wastes.

Summary of the invention

The purpose of this utility model provides a kind of concrete split heads, replaces the reinforcing bar split heads, also can effectively utilize the residue concrete in the building operations, realizes materials saving, is beneficial to environmental protection.

The technical solution of the utility model is as follows:

A kind of concrete split heads, its unique distinction are that the stool body is the polyhedron that upper and lower end face parallels.

Above-mentioned concrete split heads, said polyhedron are column or stage body.

Above-mentioned concrete split heads, said column are four-prism 2 or cylinder 10.

Above-mentioned concrete split heads, said stage body are inverted sloping platform body, wherein have the right-angled trapezium that is shaped as in a vertical section at least.

Above-mentioned concrete split heads, said stool body upper surface is provided with the colligation silk, and an end of colligation silk is embedded in the stool body in advance, and the other end stretches out in outside the stool body upper surface.

Above-mentioned concrete split heads, said stool body upper surface are provided with the groove of inserting for the distribution bar of button muscle.

Above-mentioned concrete split heads is embedded with oblique dowel 9 on the said stool body, tiltedly the slanted angle α between dowel and the upper and lower end face of cushion block is 30 °-60 °.

Above-mentioned concrete split heads, along continuous straight runs is embedded with dowel 1 on the facade of said stool body.

Concrete split heads provided by the utility model is that raw material are manufactured to pour into a mould on-the-spot remaining concrete, not only can save raw material such as reinforcing bar, concrete, reduces the construction cost of building, and can reduce building waste significantly, is beneficial to environmental protection.Use of the present utility model has following characteristics:

1. has micro-expansibility.Potential fracture is squeezed tight, and new concrete solidification shrinkage can hang on to the concrete split heads, the slit between the new and old concrete can with pore in the concrete process of setting close and closed, and can make structure produce small prestressing force, reduce the amount of deflection of concrete plate.

2. new concrete has very strong adhesion stress, can be with concrete split heads secure bond.

3. button bottom, the muscle position concrete body effect of being stressed can not produce the crack.

4. rational prefabrication system of concrete split heads and pre-buried dowel play the effect of diagonal bar shearing resistance, make the concrete split heads can not produce harmful effect to building structure.

Description of drawings

Fig. 1 is the view of a kind of embodiment of this concrete split heads roof supporting button muscle;

Fig. 2 is a concrete split heads plane interlaced arrangement schematic diagram;

Fig. 3 is the axonometric drawing of the utility model embodiment one;

Fig. 4 is the axonometric drawing of the utility model embodiment two;

Fig. 5 is the axonometric drawing of the utility model embodiment three;

Fig. 6 is the axonometric drawing of the utility model embodiment four.

Number in the figure is: 1. dowel 2. four-prisms 3. button muscle distribution bars 4. are detained oblique Rotary-table 7. colligation silks 8. grooves 9. oblique dowel 10. cylinders of the oblique truncated rectangular pyramids bodies 6. of muscle 5..

The specific embodiment

Below in conjunction with the embodiment accompanying drawing, the utility model is described in further detail.

Referring to accompanying drawing 3-6, concrete split heads provided by the utility model is the polyhedron that utilizes the residue concrete cast in the building operations to form, its upper and lower end face is parallel, and polyhedral shape can be column, four-prism as shown in Figure 3 or cylinder shown in Figure 4 10; Also can be inverted sloping platform body, the sloping platform body has the right-angled trapezium that is shaped as in a vertical section at least, oblique truncated rectangular pyramids body 5 as shown in Figure 5 and oblique Rotary-table 6 as shown in Figure 6.Tiltedly truncated rectangular pyramids body 5 has 2 or 3 adjacent facades perpendicular to upper and lower end face.Stool body upper surface is provided with can be for the distribution bar groove 8 of inserting of button muscle, and the upper surface can pre-buried colligation silk 7, and an end of colligation silk is embedded in the stool body in advance, and the other end stretches out in outside the stool body upper surface, is used for colligation button muscle and distribution bar placed on it.Can be pre-buried on the facade of stool body the dowel 1 arranged of along continuous straight runs or oblique dowel 9, tiltedly the slanted angle α between dowel 9 and upper and lower end face is 30 °-60 °, is preferably 45 °.

Referring to Fig. 3, for economizing in raw materials, when making the utility model, make and select the on-the-spot remaining concrete of cast for use and add a small amount of micro-expanding agent, being prefabricated into and intending with parts is that 100mm * 100mm, the lower surface length of side are 80mm * 80mm with the upper surface length of side of label, the oblique truncated rectangular pyramids body 5 of this 100mm.

Referring to Fig. 1, Fig. 2, before 1 cast of cast-in-place top board, the colligation and the button muscle 4 of base plate muscle and base plate muscle distribution bar and to detain the colligation of 3 of muscle distribution bars identical with existing technology for binding.

The specific requirement of using present embodiment concrete split heads to construct is as follows:

1. the early stage micro-expansibility of microdilatancy concrete is big, after concrete split heads intensity reaches C10, should use as early as possible.

2. referring to Fig. 1, Fig. 2, Fig. 3, tiltedly truncated rectangular pyramids body 5 is positioned under the button muscle 4, or places button muscle one side support distribution muscle 3, supports button muscle 4 by distribution bar 3 again, concrete split heads spacing 700mm, but can not be positioned on the base plate muscle.Place the distribution bar 3 of button muscle 4 in the diagonal groove of concrete split heads upper surface, make concrete split heads side and button muscle 4 be 45 ° (horizontal directions), then concrete split heads side all is subjected to the lateral pressure effect.

3. during with colligation silk colligation concrete split heads, make concrete split heads right angle face point to button muscle end, pre-buried dowel curved and detain muscle be 45 ° (vertical direction), and with upper and lower layer reinforcing bar binding, increase the shear resistance of concrete split heads place concrete.

4. the concrete split heads is placed the appropriate to the occasion layout of interlocking that is of many rows.

Claims

1. a concrete split heads is characterized in that, the stool body is the polyhedron that upper and lower end face parallels.

2. concrete split heads according to claim 1 is characterized in that: said polyhedron is column or stage body.

3. concrete split heads according to claim 2 is characterized in that: said column is four-prism [2].

4. concrete split heads according to claim 2 is characterized in that: said column is cylinder [10].

5. concrete split heads according to claim 2 is characterized in that: said stage body is inverted sloping platform body, wherein has the right-angled trapezium that is shaped as in a vertical section at least.

6. according to claim 1,2,3,4 or 5 described concrete split heads, it is characterized in that: said stool body upper surface is provided with the colligation silk, and an end of colligation silk [7] is embedded in the stool body in advance, and the other end stretches out in outside the stool body upper surface.

7. according to claim 1,2,3,4 or 5 described concrete split heads, it is characterized in that: said stool body upper surface is provided with the groove [8] of inserting for the distribution bar of button muscle.

8. concrete split heads according to claim 3 is characterized in that: be embedded with oblique dowel [9] on the said stool body, tiltedly the slanted angle [α] between dowel and the upper and lower end face of cushion block is 30 °-60 °.

9. concrete split heads according to claim 4 is characterized in that: along continuous straight runs is embedded with dowel [1] on the facade of said stool body.