CN202090482U

CN202090482U - Anti-floating structure for cast-in-place concrete GBF hollow floorslab

Info

Publication number: CN202090482U
Application number: CN201120157909XU
Authority: CN
Inventors: 于汇; 邢庆毅; 李力; 宫文晋; 袁惠星; 谢爱滨
Original assignee: JINAN SIJIAN GROUP) CONSTRUCTION CO Ltd
Current assignee: JINAN SIJIAN GROUP) CONSTRUCTION CO Ltd
Priority date: 2011-05-18
Filing date: 2011-05-18
Publication date: 2011-12-28
Anticipated expiration: 2021-05-18

Abstract

The utility model discloses an anti-floating structure for a cast-in-place concrete GBF hollow floorslab. The anti-floating structure comprises an anti-floating reinforcement bar, a lower-layer reinforcement bar, a framework, a framework bracket and GBF thin-walled tubes and further comprises a hook bolt, a steel backing board, a casing pipe and a nut, wherein the GBF thin-walled tubes are positioned between the anti-floating reinforcement bar and the lower-layer reinforcement bar, and are integrally positioned on the framework; the casing pipe is positioned on the framework and aligned with through holes on the framework; and the hook bolt penetrates the through holes and the casing pipe, the lower part of the hook bolt is hooked with the framework bracket, and the upper part of the hook bolt is compacted with the anti-floating reinforcement bar by the nut through the steel backing board. Through the anti-floating structure, the floating problem of the GBF thin-walled tubes can be effectively solved during the concreting of the cast-in-place concrete GBF hollow floorslab; and the anti-floating structure adopts an instrumental structure and can be used repeatedly, so that the material consumption is reduced, the cost for the postprocessing of exposed iron wire heads is saved, and the return of rust is avoided after coating construction.

Description

Be used for cast-in-situ concrete GBF cassette ceiling float Structure

Technical field

The utility model relates to a kind of cast-in-situ concrete GBF cassette ceiling float Structure that is used for, and belongs to technical field of building construction.

Background technology

In recent years, domestic in the multilayer and highrise building of large space, a kind of cast-in-situ concrete GBF cassette ceiling appears, the floor that it is made up of dark beam and non-Drawing-Core cassette ceiling, dark beam and floor uniform thickness, thereby increase the use height in space, reduce the deadweight of structure, do not adopting under the prestressed situation, make structure can satisfy the requirement of large bay, large span, reach the purpose that reduces cost, be specially adapted to the large bay public building.

This kind cast-in-situ concrete GBF cassette ceiling is in construction period, because concrete flowing caused the GBF light-wall pipe come-up of cast-in-situ concrete GBF cassette ceiling, thereby caused the unequal problem of slab thickness, is a big technical barrier in this field always.When head it off, in the past adopt iron wires binding GBF light-wall pipe bodys and iron wire is passed template fix with the lower bracket binding, use iron wire quantity bigger, a large amount of iron wires are kept somewhere in the structure after the concrete setting, post-processed exposes the iron wire head and drops into the expense height, is prone to behind coating application simultaneously and returns the rust phenomenon.On August 5th, 2009, disclosed application number was that the application for a patent for invention file of 200910119142.3 " a kind of anti-floating construction method of cast-in-place concrete hollow building roof " has disclosed a kind of job practices that adopts steel bar rod and bearing plate to form, has the advantage that construction is simple, ensure the quality of products, but behind stripping, steel bar rod still is retained in the structure, have the extensive work of post-processed equally, and behind coating application, occur return the rust phenomenon.

Summary of the invention

Technical problem to be solved in the utility model is cast-in-situ concrete GBF cassette ceiling structure GBF light-wall pipe come-up in work progress, and expends a large amount of artificial problems that reach auxilliary materials such as iron wire.

For solving this technical problem, the utility model provides a kind of structure that solves cast-in-situ concrete GBF cassette ceiling construction period anti-floating, comprise anti-floating reinforcing bar, lower floor's reinforcing bar, template, falsework, GBF light-wall pipe, described GBF light-wall pipe is between anti-floating reinforcing bar and lower floor's reinforcing bar, vertically have two place's horizontally set anti-floating reinforcing bars at least at every section GBF light-wall pipe, this GBF light-wall pipe, anti-floating reinforcing bar and lower floor's steel bar overall are positioned on the template, and this template is positioned on the falsework; The utility model also comprises hook bolt, steel backing plate, sleeve pipe and nut, and an end of described hook bolt has crotch, and the other end is threaded, and its length is longer than the thickness of the cast-in-situ concrete GBF of institute light-wall pipe hollow building cover; Gap on the described template between the GBF light-wall pipe is provided with a plurality of open-works, and described open-work is a GBF light-wall pipe and be located at the below of anti-floating reinforcing bar at least at interval laterally, and the diameter of its open-work is slightly less than the external diameter of described sleeve pipe; Described sleeve pipe places on the template, aligns with open-work, and hook bolt passes open-work and sleeve pipe, and its underpart and falsework collude tightly, and top compresses by steel backing plate and anti-floating reinforcing bar with nut.

Beneficial effect: the utility model compared with prior art, characteristics with tool-type construction, not only can effectively solve the come-up problem of cast-in-situ concrete GBF cassette ceiling GBF light-wall pipe when cast-in-situ concrete, described hook bolt and the steel backing plate instrument that all can be used as is reused simultaneously, has solved the big problem of iron wire quantity that expends; Also solved behind stripping a large amount of iron wires simultaneously and kept somewhere the structure intermediary and later stages and handle and expose the iron wire head and drop into the high problem of expense, and avoided behind coating application, being prone to and returned the rust phenomenon.

Description of drawings

Fig. 1 is a structural profile schematic diagram of the present utility model.

Among the figure: 1 hook bolt, 2 steel backing plates, 3 sleeve pipes, 4 nuts, 5 anti-floating reinforcing bars, 6 lower floor's reinforcing bars, 7 templates, 8 falseworks, 9GBF light-wall pipe.

The specific embodiment

For further describing content of the present utility model, characteristics and effect, be explained as follows in conjunction with the accompanying drawings:

Figure 1 shows that cross-sectional view of the present utility model.

The utility model comprises anti-floating reinforcing bar 5, lower floor's reinforcing bar 6, template 7, falsework 8, GBF light-wall pipe 9.

Described GBF light-wall pipe 9 is between anti-floating reinforcing bar 5 and lower floor's reinforcing bar 6, vertically have two place's lateral arrangement anti-floating reinforcing bars 5 at least at every section GBF light-wall pipe 9, this GBF light-wall pipe 9, anti-floating reinforcing bar 5 and lower floor's reinforcing bar 6 integral body are positioned on the template 7, and this template 7 is positioned on the falsework 8.

Gap on the template 7 between the GBF light-wall pipe 9 is provided with a plurality of open-works, and described open-work is a GBF light-wall pipe 9 and be located at the below of anti-floating reinforcing bar at least at interval laterally.

Stressed even by guaranteeing GBF light-wall pipe 9, the open-work that distributes on the described template 7 has two, 9 distributions of two the GBF light-wall pipes in horizontal every interval by vertical every section GBF light-wall pipe 9.

The diameter of open-work is slightly less than the external diameter of described sleeve pipe 3 on the described template 7, is preferably 14mm.

Described falsework 8 is the common steel tube scaffold.

The utility model also comprises hook bolt 1, steel backing plate 2, sleeve pipe 3 and nut 4.

One end of described hook bolt 1 has crotch, and the other end is threaded, and its length is longer than the thickness of the cast-in-situ concrete GBF of institute light-wall pipe hollow building cover.

In order to consider the tool construction, the length of hook bolt 1 preferably is controlled at about 700mm.

Described hook bolt 1 is 12 round steel self-control bolt for diameter.

Described steel backing plate 2 is 20mm for thickness.

Described sleeve pipe 3 adopts PVC sleeve pipe, plastics etc., and other operable useless pipes replace.

The internal diameter of described sleeve pipe 3 is preferably 16mm.

Described sleeve pipe 3 places on the template 7, aligns with open-work, and hook bolt 1 passes open-work and sleeve pipe 3, and its underpart and falsework 8 collude tightly, and top compresses by steel backing plate 2 and anti-floating reinforcing bar 5 with nut 4.

The utility model is to design at the anti-floating in the cast-in-situ concrete GBF cassette ceiling structure construction procedure, arranges the GBF light-wall pipe after falsework 8 and template 7 installations; According to the layout of GBF light-wall pipe 9, punching on template 7; The installation of reinforcing bar binding and GBF light-wall pipe 9 then; After anti-floating reinforcing bar 5 was finished, mounting sleeve 3, hook bolt 1, billet 2 colluded hook bolt 1 and falsework 8 tightly, and steel backing plate 2 compresses with anti-floating reinforcing bar 5; Cast-in-situ concrete after every inspecting for acceptance is finished and is reached initial set in concreting; Remove steel backing plate 2 and hook bolt 1, use mortar that bolt hole is tamped and fill and lead up.

The utility model is not limited to foregoing description, and every use structure described in the utility model all falls into protection domain of the present utility model.

Claims

1. one kind is used for cast-in-situ concrete GBF cassette ceiling float Structure, comprise anti-floating reinforcing bar (5), lower floor's reinforcing bar (6), template (7), falsework (8), GBF light-wall pipe (9), described GBF light-wall pipe (9) is positioned between anti-floating reinforcing bar (5) and the lower floor's reinforcing bar (6), vertically have two place's horizontally set anti-floating reinforcing bars (5) at least at every section GBF light-wall pipe (9), this GBF light-wall pipe (9), anti-floating reinforcing bar (5) and lower floor's reinforcing bar (6) integral body are positioned on the template (7), this template (7) is positioned on the falsework (8)

It is characterized in that:

Also comprise hook bolt (1), steel backing plate (2), sleeve pipe (3) and nut (4),

One end of described hook bolt (1) has crotch, and the other end is threaded, and its length is longer than the thickness of the cast-in-situ concrete GBF of institute light-wall pipe hollow building cover;

The gap that described template (7) goes up between the GBF light-wall pipe (9) is provided with a plurality of open-works, and described open-work is a GBF light-wall pipe (9) and be located at the below of anti-floating reinforcing bar at least at interval laterally, and the diameter of its open-work is slightly less than the external diameter of described sleeve pipe (3);

Described sleeve pipe (3) places template (7) to go up, align with open-work, and hook bolt (1) passes open-work and sleeve pipe (3), and its underpart and falsework (8) collude tightly, and top compresses steel backing plate (2) and anti-floating reinforcing bar (5) by nut (4).

2. the cast-in-situ concrete GBF cassette ceiling float Structure that is used for according to claim 1, it is characterized in that: the length of described hook bolt (1) is controlled at about 700mm.

3. the cast-in-situ concrete GBF cassette ceiling float Structure that is used for according to claim 1 is characterized in that: described hook bolt (1) is 12 round steel self-control bolt for diameter.

4. the cast-in-situ concrete GBF cassette ceiling float Structure that is used for according to claim 1, it is characterized in that: described steel backing plate (2) thickness is 20mm.

5. the cast-in-situ concrete GBF cassette ceiling float Structure that is used for according to claim 1, it is characterized in that: described sleeve pipe (3) is the PVC sleeve pipe.

6. the cast-in-situ concrete GBF cassette ceiling float Structure that is used for according to claim 1, it is characterized in that: the internal diameter of described sleeve pipe (3) is 16mm.

7. the cast-in-situ concrete GBF cassette ceiling float Structure that is used for according to claim 1 is characterized in that: described template (7) goes up the open-work that distributes has two, horizontal two the GBF light-wall pipes in every interval (9) distribution by vertical every section GBF light-wall pipe (9).

8. the cast-in-situ concrete GBF cassette ceiling float Structure that is used for according to claim 1 is characterized in that: the diameter that described template (7) goes up open-work is 14mm.

9. according to each described cast-in-situ concrete GBF cassette ceiling float Structure that is used for of claim 1-8, it is characterized in that: described falsework (8) is the common steel tube scaffold.