CN201411809Y

CN201411809Y - Precast element for concrete floors

Info

Publication number: CN201411809Y
Application number: CN2009200262795U
Authority: CN
Inventors: 李克翔
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-25
Filing date: 2009-05-25
Publication date: 2010-02-24
Anticipated expiration: 2019-05-25

Abstract

The utility model relates to a precast element for concrete floors, which is provided with closed loops outwardly extended toward the four sides. During construction, the precast elements are orderlyplaced, the closed loops of the neighboring precast elements are formed into crossed hoops, which are used as the hoop reinforcements of a later-cast rib beam, the main reinforcements of the later-cast rib beam are inserted in the crossed hoops to form the reinforcement cage of the rib beam, concrete is poured in the gaps of the precast elements, and thereby an integral concrete floor is formed. The vertical superposed surfaces formed by the four sides of the precast element and the later-cast rib beam replace the horizontal superposed surfaces of the prior art, the precast element is reliablyconnected with the later-cast concrete through the connecting structure of the closed loops and the main reinforcements of the later-cast rib beam, so that the integrity of the floor is improved, theindependent arrangement of the hoop reinforcements of the later-cast rib beam is dispensed with, consequently, the construction technique is simplified, the processing cost is reduced, and the usageof reinforcing steel bars is reduced.

Description

A kind of concrete floor system prefabricated component

Technical field

The utility model relates to the construction processes field, particularly a kind of concrete floor system prefabricated component.

Background technology

In the existing various concrete floor system process technologies, the stirrup of girt strip all is a separate configurations, and the cage of reinforcement of girt strip by main muscle and independently stirrup constitute, adopt the mode of cast-in-site to carry out the processing of superstructure afterwards, the problem of existence is that the site work amount is big, stirrup and prefabricated units dowel separate configurations and cause reinforcing bar content more separately.

In addition in the existing concrete composite technology, pre-erection (superimposed sheet, superposed beam) all is a horizontal plane with the superposed surfaces (bonding surface) of cast-in-place part (girt strip etc.), cast-in-situ concrete all is the upper surface that waters at pre-erection, the problem that exists is that the pre-erection size is big, transporting and hoisting is difficult, construction requirement is high, and the superimposed ways of connecting of this large size prefabricated level makes that the superstructure globality is very poor.

Summary of the invention

The many weak points that in application process, exist at existing concrete superstructure prefabricated component, the utility model provides a kind of brand-new concrete floor system prefabricated component, dispose on this prefabricated component to four closed-loops that the side is overhanging, closed-loop during construction between prefabricated component formation cross cap intersected with each other and replaced rib beam hoop reinforcement, four sides of prefabricated component with after water that girt strip forms vertical superposed surfaces and the horizontal superposed surfaces that replaces existing technology, by closed-loop with after water the rib beam main tendon joint construction form prefabricated component and be connected with back the reliable of pouring concrete, improve the globality of superstructure, reduced cost of processing and difficulty.

Concrete floor system prefabricated component provided by the utility model disposes on it to the overhanging closed-loop at least one side, oriented four closed-loops that the side is overhanging of preferred disposition.Described closed-loop is evenly arranged, and according to technological requirement spacing is set between the adjacent closed-loop, and closed-loop is square, and as after water girt strip stirrup use.

During with this prefabricated component fabrication of concrete superstructure, step is as follows:

I. prefabricated component is arranged in turn, made the mutual juxtaposition of overhanging closed-loop between the adjacent preforms, form a cross cap;

II. the rib beam main tendon is penetrated cross cap, make the stirrup of cross cap as cast-in-place girt strip;

III. can obtain superstructure of the present invention to the space inner concrete cast between the adjacent preforms.

Adopt the prefabricated component of this structure and the superstructure that corresponding processing method makes, in the space between prefabricated component, closed-loop separately of adjacent preforms is intersected mutually and is formed a cross cap, this cross cap needing in the prior art to have replaced the rib beam hoop reinforcement of configuration separately, after water girt strip and need not to dispose separately again stirrup, so just reduced the amount of reinforcement of girt strip, by closed-loop with after water the rib beam main tendon this structure be connected, form prefabricated component with after water reliably being formed by connecting of girt strip and be integral cover; Prefabricated component with after water girt strip and on vertical plane, form superposed surfaces, replaced horizontal superposed surfaces of the prior art.

In sum, the superstructure that adopts the prefabricated component of this structure to make, four sides of prefabricated component with after water that girt strip forms vertical superposed surfaces and the horizontal superposed surfaces that replaces existing technology, by closed-loop with after water the rib beam main tendon joint construction form prefabricated component and be connected with back the reliable of pouring concrete, improve the total quality of superstructure, reduced cost of processing and difficulty.

Description of drawings

Fig. 1 is the schematic diagram of the described prefabricated component of utility model;

Fig. 2 is the sectional drawing of prefabricated component described in the utility model;

Fig. 3 is that prefabricated component described in the utility model adds the cut-away view between the adjacent preforms in man-hour;

Fig. 4 is a prefabricated component processing described in the utility model back complete layout;

Among the figure, 1 is that prefabricated component, 2 closed-loops, 3 are to water girt strip, 5 after rib beam main tendon, 4 is to be cross cap.

The specific embodiment

A kind of concrete floor system prefabricated component disposes on the described prefabricated component (1) to four closed-loops (2) that the side is overhanging, and described closed-loop (2) is evenly arranged.This closed-loop be rectangle.

During with the method for prefabricated component fabrication of concrete superstructure described in the utility model, step is as follows:

I. prefabricated component (1) is arranged in turn, made the mutual juxtaposition of overhanging closed-loop (2) between the adjacent preforms (1), form a cross cap (5);

II. rib beam main tendon (3) is penetrated cross cap (5), make the stirrup of cross cap (5) as cast-in-place girt strip (4);

III. fluid concrete in the space between adjacent preforms (1) is got final product.

Claims

1. a concrete floor system prefabricated component is characterized in that: dispose on the described prefabricated component (1) to four closed-loops (2) that the side is overhanging.

2. superstructure prefabricated component according to claim 1 is characterized in that: described closed-loop (2) is for square.

3. superstructure prefabricated component according to claim 1 is characterized in that: described closed-loop (2) is evenly arranged.