CN206815867U - A kind of device contained cast-in-situ concrete hollow slab internal model and floated - Google Patents

A kind of device contained cast-in-situ concrete hollow slab internal model and floated Download PDF

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Publication number
CN206815867U
CN206815867U CN201720729450.3U CN201720729450U CN206815867U CN 206815867 U CN206815867 U CN 206815867U CN 201720729450 U CN201720729450 U CN 201720729450U CN 206815867 U CN206815867 U CN 206815867U
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China
Prior art keywords
cushion block
section
hole
inner formwork
hollow
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Withdrawn - After Issue
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CN201720729450.3U
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Chinese (zh)
Inventor
孟凡林
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Jilin Jianzhu University
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Jilin Jianzhu University
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Abstract

A kind of device contained cast-in-situ concrete hollow slab internal model and floated of the utility model, belong to building engineering field, followed closely including variable cross-section cushion block, variable cross-section cushion block hollow hole, hollow inner formwork fixture, hollow inner formwork fixture hole and fastening screw, the variable cross-section cushion block is made up of small bore cushion block and heavy in section cushion block, the cross sectional shape of the small bore cushion block and heavy in section cushion block is rectangle, and wherein the square-section width of small bore cushion block is LIt is small, the square-section width of heavy in section cushion block is LGreatly;The end of the hollow inner formwork fixture is provided with hollow inner formwork fixture hole;The cross sectional shape of the hollow inner formwork fixture hole is rectangle, and the square-section width of hollow inner formwork fixture hole is LHole, and LIt is small<LHole<LGreatly;The utility model provides a kind of device contained cast-in-situ concrete hollow slab internal model and floated, and anti-floating effect is good, and construction cost is low, quality is good, and construction and installation are convenient, can be widely applied to the construction of hollow cast-in-place concrete floor slabs.

Description

A kind of device contained cast-in-situ concrete hollow slab internal model and floated
Technical field
The utility model belongs to building engineering field, more particularly to a kind of contains what cast-in-situ concrete hollow slab internal model floated Device.
Background technology
Cast-in-situ concrete hollow slab, it is after placing flush type inner membrance by certain rule among plate, through cast in situs coagulation The cassette ceiling of earth forming, " internal model " are to be embedded in the thing in cast-in-situ concrete hollow slab to form cavity and not take out Body.Cast-in-situ concrete hollow slab so as to mitigate deadweight, reduces concrete amount, increases span, reduce due to having inserted internal model Floor height, and sound-insulating and heat-insulating effect is also fine.Welcome in recent years by vast construction unit and technical staff.It is but original cast-in-place mixed It is unreliable fixation to be present in solidifying native cored slab internal model fixture, the problem of easily displacement during casting concrete.
In order to overcome above mentioned problem, the fixing means of traditional cast-in-situ concrete hollow slab internal model, mainly have following two:
First, notification number is the Chinese patent literature of " CN2531000Y ", a kind of two-way sky of cast-in-situ steel reinforced concrete is disclosed Heart superstructure, it is made up of reinforcing bar, concrete, the two-way pore-forming that is preset in reinforcing bar with preburied component, it is characterized in that two-way pore-forming With preburied component is mutually orthogonal in the same plane or oblique and positioned with stationary positioned component.The pre-buried structure of the two-way pore-forming Part can be closed hard cavity cylinder not soluble in water or closed hard cavity box or contain hydrophobic made of light material The solid of bisque, its cross sectional shape can be circular, square, trapezoidal or other abnormity.The cast-in-situ steel reinforced concrete bidirectional hollow Superstructure has the characteristics that applicable span is big, structure space mechanical property is good, easy for construction, cost is low, especially suitable for multilayer, height The cast-in-situ floor of layer building and longspan structure.
But the fixing means for the cast-in-situ concrete hollow slab internal model that the technical scheme provides fastens using annular horizontal The locating piece stationary positioned that iron wire, inverted U vertically fasten iron wire and be placed on superstructure end template, wherein being placed in building cover board end template On locating piece in vibrated concrete, easily displacement comes off, cause positioning to fail, and inverted U vertically fastens iron wire and passed through Locked after building cover board end template, cause to remove difficulty, while it is also extremely difficult for rejecting iron wire after form removal, it is also possible to cause Ceiling returns the quality problems of rust.
Second, notification number is the Chinese patent literature of " CN204804132U ", a kind of cast-in-situ concrete hollow slab cylinder is disclosed The anti-floating system of shape internal model, it includes the cage bar above floor bottom mould and the positioning lacing wire positioned at floor bottom mould bottom;Institute The both ends of cage bar are stated respectively with being welded to connect in the middle part of arc lacing wire, the end set of the arc lacing wire there are 135 ° of crotches, in arc The accessory position below crook that rises of shape lacing wire is welded with the iron plate for being bonded the thickness of internal model periphery as 3mm~4mm.
Subject matter existing for the technical scheme is:Vertical position inaccurate, anti-floating effect is unstable, wears bottom template behaviour Make difficulty, remove device and template is difficult, the lacing wire removing after dismounting is difficult, in Practical Project and does not apply to.
Therefore being needed badly among prior art wants a kind of new technical scheme to solve this problem.
The content of the invention
Technical problem to be solved in the utility model is:Exist when being fixed for existing cast-in-situ concrete hollow slab internal model Position inaccurate, anti-floating effect is unstable, and it is difficult to wear bottom template operation, the problems such as removing device and template difficulty, there is provided one The device that kind containment cast-in-situ concrete hollow slab internal model floats, solves the problems, such as that cast-in-situ concrete hollow slab internal model easily floats, Its anti-floating effect is good, and construction cost is low, quality is good, and construction and installation are convenient.
To realize above-mentioned technical purpose, the utility model adopts the following technical scheme that:
A kind of device contained cast-in-situ concrete hollow slab internal model and floated, it is characterized in that:Including variable cross-section cushion block, variable cross-section Cushion block hollow hole, hollow inner formwork fixture, hollow inner formwork fixture hole and fastening screw nail, the variable cross-section cushion block is by small section Face cushion block and heavy in section cushion block are formed, and the variable cross-section cushion block that forms of small bore cushion block and heavy in section cushion block is formed in one knot Structure, the small bore cushion block end of variable cross-section cushion block are downwardly into hollow inner formwork fixture hole;The small bore cushion block is cut with big The cross sectional shape of face cushion block is rectangle, and wherein the square-section width of small bore cushion block is LIt is small, the square-section of heavy in section cushion block Width is LGreatly;Variable cross-section cushion block is vertically run through in center of the variable cross-section cushion block hollow hole along variable cross-section cushion block;It is described The end of hollow inner formwork fixture is provided with hollow inner formwork fixture hole;The cross sectional shape of the hollow inner formwork fixture hole is Rectangle, the square-section width of hollow inner formwork fixture hole is LHole, and LIt is small<LHole<LGreatly;The fastening screw is followed closely from bottom template Bottom be placed in through the drilling opened up in the template of bottom in variable cross-section cushion block hollow hole so that variable cross-section cushion block, hollow inner formwork Fixture and bottom template three tighten together.
By above-mentioned design, the utility model can bring following beneficial effect:The utility model, which provides one kind, to be held back The device that cast-in-situ concrete hollow slab internal model processed floats, anti-floating effect is good, and construction cost is low, quality is good, and construction and installation are convenient, can It is widely used in the construction of hollow cast-in-place concrete floor slabs.
Brief description of the drawings
The utility model is further described below in conjunction with the drawings and specific embodiments:
Fig. 1 is the utility model variable cross-section cushion block schematic diagram.
Fig. 2 is the utility model hollow inner formwork fixture schematic diagram.
Fig. 3 is the utility model hollow inner formwork fixture and bottom form assembly schematic diagram.
Fig. 4 is that the utility model hollow inner formwork fixes the schematic diagram completed and after casting concrete.
In figure:1- variable cross-sections cushion block, 101- small bores cushion block, 102- heavies in section cushion block, 2- variable cross-section cushion blocks hollow hole, 3- Hollow inner formwork fixture, 4- hollow inner formwork fixtures hole, 5- fastening screws nail, 6- bottoms template, 7- cast-in-place concrete hollows Plate, 8- hollow inner formworks.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describe, the utility model proposes a kind of device contained cast-in-situ concrete hollow slab internal model and floated, refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, including variable cross-section cushion block 1, variable cross-section cushion block hollow hole 2, hollow inner formwork fixture 3, hollow inner formwork are solid Determine part hole 4 and fastening screw nail 5, the variable cross-section cushion block 1 is made up of small bore cushion block 101 and heavy in section cushion block 102, and small The variable cross-section cushion block 1 that section cushion block 101 and heavy in section cushion block 102 are formed is formed in one structure, the small bore of variable cross-section cushion block 1 The end of cushion block 101 is downwardly into hollow inner formwork fixture hole 4;The section of the small bore cushion block 101 and heavy in section cushion block 102 Rectangle is shaped as, the wherein square-section width of small bore cushion block 101 is LIt is small, the square-section width of heavy in section cushion block 102 is LGreatly;The variable cross-section cushion block hollow hole 2 vertically runs through variable cross-section cushion block 1 along the center of variable cross-section cushion block 1;It is described hollow The end of internal model fixture 3 is provided with hollow inner formwork fixture hole 4;The cross sectional shape of the hollow inner formwork fixture hole 4 is Rectangle, the square-section width of hollow inner formwork fixture hole 4 is LHole, and LIt is small<LHole<LGreatly;The fastening screw follows closely 5 from bottom mould The bottom of plate 6 passes through the drilling opened up in bottom template 6 to be placed in variable cross-section cushion block hollow hole 2 so that variable cross-section cushion block 1, sky Intracardiac mould fixture 3 and the three of bottom template 6 tighten together.
A kind of method contained cast-in-situ concrete hollow slab internal model and floated, this method use containment provided by the utility model The device that cast-in-situ concrete hollow slab internal model floats is operated, and specifically includes following steps,
Step 1: lay bottom template 6 and colligation bottom reinforcement bars
Arrange the bottom template 6 of cast-in-situ concrete hollow slab 7, the bottom reinforcement bars of colligation cast-in-situ concrete hollow slab 7;
Step 2: after the bottom reinforcement bars colligation of cast-in-situ concrete hollow slab 7, require that laying is hollow according to detail design Internal model 8, after hollow inner formwork 8 is laid, bottom limiting cushion block is added in the bottom of hollow inner formwork 8, bottom limiting cushion block adds Finish, lay hollow inner formwork fixture 3, after the completion of hollow inner formwork fixture 3 is laid, using electric hand drill in bottom template 6 it is right Answer the position at the center of hollow inner formwork fixture hole 4 to drill, the end of small bore cushion block 101 of variable cross-section cushion block 1 is downwardly into sky In intracardiac mould fixture hole 4, after variable cross-section cushion block 1 deploys, it will be fastened from the bottom of bottom template 6 using electric wrench Screw 5 is screwed in variable cross-section cushion block hollow hole 2 through the drilling opened up in bottom template 6 so that variable cross-section cushion block 1, hollow Internal model fixture 3 and the three of bottom template 6 tighten together, hollow inner formwork 8 of tying tight, it is ensured that hollow inner formwork 8 during casting concrete Do not shift.
Wherein hollow inner formwork 8 is the internal model that existing cast-in-situ concrete hollow slab technology is used for pore-forming;Bottom template 6 is cast-in-place The template of the bottom of concrete core slab 7;The fastening screw nail 5 is existing general standard wood screws;The cast-in-place concrete Cored slab 7 is that current engineering construction technique standard is permitted workable concrete hollow building roof plate;
Completed using a kind of device for containing that cast-in-situ concrete hollow slab internal model floats provided by the utility model cast-in-place mixed The manufacturing process for coagulating native cored slab is as follows:
Step 1: lay bottom template 6 and colligation bottom reinforcement bars
Arrange the bottom template 6 of cast-in-situ concrete hollow slab 7, the bottom reinforcement bars of colligation cast-in-situ concrete hollow slab 7;
Step 2: after the bottom reinforcement bars colligation of cast-in-situ concrete hollow slab 7, require that laying is hollow according to detail design Internal model 8, after hollow inner formwork 8 is laid, bottom limiting cushion block is added in the bottom of hollow inner formwork 8, bottom limiting cushion block adds Finish, lay hollow inner formwork fixture 3, after the completion of hollow inner formwork fixture 3 is laid, using electric hand drill in bottom template 6 it is right Answer the position at the center of hollow inner formwork fixture hole 4 to drill, the end of small bore cushion block 101 of variable cross-section cushion block 1 is downwardly into sky In intracardiac mould fixture hole 4, after variable cross-section cushion block 1 deploys, it will be fastened from the bottom of bottom template 6 using electric wrench Screw 5 is screwed in variable cross-section cushion block hollow hole 2 through the drilling opened up in bottom template 6 so that variable cross-section cushion block 1, hollow Internal model fixture 3 and the three of bottom template 6 tighten together, hollow inner formwork 8 of tying tight, it is ensured that hollow inner formwork 8 during casting concrete Do not shift;
Step 3: colligation top rebars and casting concrete
The top rebars of colligation cast-in-situ concrete hollow slab 7, casting concrete, vibrated concrete and floating top surface;
Step 4: dismounting fastening screw nail 5
After cast-in-place concrete final set, fastening screw nail 5 is screwed out and deposited from the bottom of bottom template 6 using electric wrench Stay standby, the dismounting bottom template 6 after cast-in-place concrete reaches strength of mould stripping, cast-in-situ concrete hollow slab construction completion.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.

Claims (1)

1. a kind of device contained cast-in-situ concrete hollow slab internal model and floated, it is characterized in that:Including variable cross-section cushion block (1), become and cut Face cushion block hollow hole (2), hollow inner formwork fixture (3), hollow inner formwork fixture hole (4) and fastening screw nail (5), the change Section cushion block (1) is made up of small bore cushion block (101) and heavy in section cushion block (102), and small bore cushion block (101) and heavy in section pad The variable cross-section cushion block (1) that block (102) is formed is formed in one structure, and small bore cushion block (101) end of variable cross-section cushion block (1) is downward Insert in hollow inner formwork fixture hole (4);The cross sectional shape of the small bore cushion block (101) and heavy in section cushion block (102) is Rectangle, wherein the square-section width of small bore cushion block (101) are LIt is small, the square-section width of heavy in section cushion block (102) is LGreatly; Variable cross-section cushion block (1) is vertically run through in center of the variable cross-section cushion block hollow hole (2) along variable cross-section cushion block (1);It is described The end of hollow inner formwork fixture (3) is provided with hollow inner formwork fixture hole (4);The hollow inner formwork fixture hole (4) Cross sectional shape is rectangle, and the square-section width of hollow inner formwork fixture hole (4) is LHole, and LIt is small<LHole<LGreatly;The fastening spiral shell Adjusting screw (5) passes through the drilling opened up in bottom template (6) to be placed in variable cross-section cushion block hollow hole (2) from the bottom of bottom template (6) It is interior so that variable cross-section cushion block (1), hollow inner formwork fixture (3) and bottom template (6) three tighten together.
CN201720729450.3U 2017-06-22 2017-06-22 A kind of device contained cast-in-situ concrete hollow slab internal model and floated Withdrawn - After Issue CN206815867U (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720729450.3U CN206815867U (en) 2017-06-22 2017-06-22 A kind of device contained cast-in-situ concrete hollow slab internal model and floated

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107083844A (en) * 2017-06-22 2017-08-22 吉林建筑大学 It is a kind of to contain the device and method that cast-in-situ concrete hollow slab internal model floats

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107083844A (en) * 2017-06-22 2017-08-22 吉林建筑大学 It is a kind of to contain the device and method that cast-in-situ concrete hollow slab internal model floats

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