CN207260476U - It is a kind of can accurately leveling installation armored concrete precast stair dry connecting device - Google Patents
It is a kind of can accurately leveling installation armored concrete precast stair dry connecting device Download PDFInfo
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- CN207260476U CN207260476U CN201721324458.8U CN201721324458U CN207260476U CN 207260476 U CN207260476 U CN 207260476U CN 201721324458 U CN201721324458 U CN 201721324458U CN 207260476 U CN207260476 U CN 207260476U
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Abstract
The utility model discloses it is a kind of can accurately leveling installation armored concrete precast stair dry connecting device,It is related to technical field of buildings,It is low for solving precast stair lifting efficiency,The technical problems such as installation accuracy difference,The utility model includes terraced beam and the precast stair for being erected at terraced beam top,Build-in sets built-in fitting one inside the precast stair,Build-in sets the built-in fitting two with one position correspondence of built-in fitting inside the ladder beam,The built-in fitting one includes rim of a cup cup shell outwardly and the dowel being arranged at the top of cup shell,The built-in fitting two includes prepared screw-bolt hole plate and the welding plate for being arranged on prepared screw-bolt hole plate top,The prepared screw-bolt hole plate inner wall is provided with the internal thread coordinated with high-strength bolt,Connected between the built-in fitting one and built-in fitting two by high-strength bolt,The utility model has simple structure,Connection is precisely reliable,It is quick and easy for installation,Without wet construction,The advantages of reducing comprehensive cost.
Description
Technical field
The utility model is related to technical field of buildings, more particularly to it is a kind of can accurately leveling installation reinforced concrete
Native precast stair dry connecting device.
Background technology
At present, the method that domestic prefabricated reinforced concrete stair connection joint is usually taken is in prefabricated reinforced concrete building
Pin hole, while the cast-in fixing bolt on prefabricated or cast-in-place terraced beam are reserved on terraced both ends gangboard, is led to after precast stair installation positioning
Into gap between reserved pin hole and crab-bolt filling concrete mortar or pea gravel concreten are crossed to realize precast stair and terraced beam
Effectively connection.For example,《Prefabricated concrete structure connecting node constructs (superstructure and stair)》(15G310-1) connection of page 41
It is such a to connect existing defects by pouring into cement mortar etc. into reserved pin hole shown in joint structure.
There is no secondary decoration since current most prefabricated reinforced concrete stair belong to the clear water member later stage, to component
Surface smoothness, finish, component color uniformity are more demanding, but live priming charge cement mortar or pea gravel concreten position
Put with precast stair surface easily there are aberration, be uneven, finish is poor the problems such as, influence the overall look and feel effects of stair.
And later stage cementing operations and grouting deutomerite point protection can increase cost.
Further, since this connection mode does not take into full account that precast stair installs leveling, increase hoisting difficulty, influence to install
Precision.
How this technical problem is solved into the striving direction of those skilled in the art.
Utility model content
The purpose of this utility model is that：Meet to avoid the wet constructions such as live slip casting on the basis of node reliability, solve
When component is installed the problem of accurate leveling, so as to achieve the purpose that reducing cost improves installation accuracy and product quality, this practicality
It is new provide it is a kind of can accurately leveling installation armored concrete precast stair dry connecting device.
The utility model specifically uses following technical scheme to achieve these goals：
It is a kind of can accurate leveling installation armored concrete precast stair dry connecting device, including terraced beam and be erected at ladder
The precast stair on beam top, build-in sets built-in fitting one inside the precast stair, inside the ladder beam build-in set with it is pre-buried
The built-in fitting two of one position correspondence of part, the built-in fitting one include rim of a cup cup shell outwardly and the anchor being arranged at the top of cup shell
Muscle, the built-in fitting two include prepared screw-bolt hole plate and the welding plate for being arranged on prepared screw-bolt hole plate top, the prepared screw-bolt hole
Plate inner wall is provided with the internal thread coordinated with high-strength bolt, is connected between the built-in fitting one and built-in fitting two by high-strength bolt
Connect.
Further, the precast stair bottom sets 2-4 along symmetrical pre-buried of precast stair longitudinal centre line
Part one, built-in fitting, which is arranged symmetrically, makes component producing balanced forces.
Further, the terraced beam is cast-in-place or precast reinforced concrete structure, is set along terraced beam is longitudinally elongated to extension
Bracket is stretched, bracket chooses length and is not less than 200mm, and bracket upper end sets built-in fitting two.
Further, the cup shell rim of a cup and bottom of a cup is provided in round or rectangle, rim of a cup sectional dimension is not less than bottom of a cup
Sectional dimension, rim of a cup are 20-50mm away from bottom of a cup depth, and wall of cup thickness 3-8mm, bottom of a cup is flat, and inner wall spacing should be according to specific
Engineering relative storey displacement requirement and high-strength bolt nut size dimension determine that bottom of a cup thickness and sectional dimension should be set according to precast stair
Count load and calculate definite, two dowels of welding on the outside of bottom of a cup.
Further, the cup shell material is one kind in steel or stainless steel, and surface also needs zinc-plated during if steel
Processing prevents from getting rusty.
Further, the dowel is one kind in round steel or screw-thread steel, and diameter, which calculates, to be determined, dowel can be processed into
Vertical bar or bending reinforcing steel bar.
Further, the prepared screw-bolt hole plate bottom lock, prepared screw-bolt hole plate top to distance from bottom are arranged to 50-
100mm, inner wall internal thread segment length are arranged to 50-70mm, and the welding plate (4-2) is provided in round or square plate, and steel plate is thick
Degree and sectional dimension should be calculated according to precast stair design load to be determined.
Further, two material of built-in fitting is one kind in steel or stainless steel, and surface also needs to plate during if steel
Zinc processing prevents from getting rusty.
Further, the high-strength bolt specification should be according in precast stair design load, installation gap and built-in fitting one
Cup shell depth determines that bolt surface is zinc-plated.
During utility model works：According to design requirement, built-in fitting one and built-in fitting two are processed first, is poured in plant produced
Built-in fitting one is installed when building precast stair and outwardly, and passes through dowel in precast stair bottom relevant position, cup shell rim of a cup admittedly
Built-in fitting one is set to anchor in precast stair concrete, terraced beam can be prefabricated or cast-in-place, will be pre-buried when pouring terraced beam concrete
Part two is fixed on terraced beam relevant position, after terraced beam is in place, high-strength bolt is screwed into prepared screw-bolt hole plate, by adjusting height
Strength bolt nut top surface and the relative altitude of terraced beam bracket top surface accurately control stair installed height mark and flatness.
The beneficial effects of the utility model are as follows：
1st, the utility model by inside precast stair build-in built-in fitting one is set, inside terraced beam build-in set with it is pre-
The built-in fitting two of one position correspondence of embedded part, is connected between built-in fitting one and built-in fitting two by high-strength bolt, using this dry type
Connection, simple structure, makes the vertical load of stair effectively transmit, and precast stair installed height mark is adjusted flexibly with accurately controlling
System, improves installation effectiveness, avoids situ wet operation, ensure that installation accuracy, ensure that armored concrete precast stair table
The finish and color uniformity in face, reduce comprehensive cost.
2nd, the utility model in precast stair bottom by setting 2-4 a symmetrical along precast stair longitudinal centre line
Built-in fitting one, enables precast stair load to disperse to terraced beam transmission.
3rd, the utility model along terraced beam is longitudinally elongated by setting the bracket that stretches out, easy to flexibly set built-in fitting two,
At the same time it is molded also staircase more beautiful, bracket chooses length and is not less than 200mm, built-in fitting two is had the anchorage zone of abundance
And bearing area.
4th, built-in fitting one is arranged to cup shell by the utility model, and cup shell rim of a cup and bottom of a cup are provided in round or rectangle,
Rim of a cup sectional dimension is not less than bottom of a cup sectional dimension, in hoisting prefabricated stair, is conducive to stair and installation is directed at high-strength bolt,
Rim of a cup is 20-50mm away from bottom of a cup depth, and wall of cup thickness 3-8mm, bottom of a cup is flat, and when running into earthquake damage, cup shell can limit
Precast stair processed with terraced beam move by opposite draw, and plays good antihunt action.
5th, the utility model dowel is one kind in round steel or screw-thread steel, and dowel can be processed into vertical bar or bending reinforcing steel bar, take
Material is extensive, and processing is simple.
6th, prepared screw-bolt hole plate bottom lock is prevented that slurry blocks spiral shell during terraced beam casting concrete by the utility model
Keyhole plate, prepared screw-bolt hole plate top are arranged to 50-100mm to distance from bottom, and inner wall internal thread segment length is arranged to 50-
70mm, meets that high-strength bolt is reliably connected, and increases attachment device adjustable range, and prepared screw-bolt hole plate top sets welding plate to increase
Two bearing area of big built-in fitting.
7th, the utility model processes cup shell, built-in fitting two using galvanized steel or stainless steel, selects zinc-plated high-strength bolt,
Anti-rust action can be played, strengthens the durability of attachment device.
Brief description of the drawings
Fig. 1 be the utility model it is a kind of can accurately leveling install armored concrete precast stair dry connecting device structure
Schematic diagram；
Fig. 2 is leveling connecting component structure schematic diagram.
Reference numeral：1- precast stairs, 2- ladder beams, 3- built-in fittings one, 3-1- cup shells, 3-2- dowels, 4- built-in fittings two,
4-1- prepared screw-bolt hole plates, 4-2- welding plates, 5- high-strength bolts.
Embodiment
In order to which those skilled in the art are better understood from the utility model, below in conjunction with the accompanying drawings with following embodiments to this
Utility model is described in further detail.
Embodiment 1
As shown in Figs. 1-2, present embodiments provide it is a kind of can accurately leveling installation armored concrete precast stair dry type
Interconnection technique, it is characterised in that including terraced beam (2) and be erected at the precast stair (1) on terraced beam (2) top, the precast stair
(1) internal build-in sets built-in fitting one (1), and the ladder beam inside build-in sets the built-in fitting with built-in fitting one (3) position correspondence
Two (4), the built-in fitting one (3) include rim of a cup cup shell (3-1) outwardly and the dowel (3-2) being arranged at the top of cup shell,
The built-in fitting two (4) includes prepared screw-bolt hole plate (4-1) and the welding plate (4-2) for being arranged on prepared screw-bolt hole plate (4-1) top,
Prepared screw-bolt hole plate (4-1) inner wall be provided with high-strength bolt (5) coordinate internal thread, the built-in fitting one (3) and in advance
Connected between embedded part two (4) by high-strength bolt (5).
In the present embodiment, according to design requirement, built-in fitting one and built-in fitting two are processed first, is poured in plant produced prefabricated
Built-in fitting one installed during stair solid in precast stair bottom relevant position, cup shell rim of a cup outwardly, and is made by dowel pre-buried
Part one is anchored in precast stair concrete, and terraced beam can be prefabricated or cast-in-place, pacifies built-in fitting two when pouring terraced beam concrete
Dress is fixed on terraced beam relevant position, after terraced beam is in place, high-strength bolt is screwed into prepared screw-bolt hole plate, by adjusting high-strength bolt
The relative altitude of nut top surface and terraced beam bracket top surface accurately controls stair installed height mark and flatness, dry type connection, construction letter
It is single, the vertical load of stair is effectively transmitted, precast stair installed height mark is adjusted flexibly and is accurately controlled, improve peace
Fill efficiency, avoid situ wet operation, ensure that installation accuracy, ensure that armored concrete precast stair surface finish and
Color uniformity, reduces comprehensive cost.
Embodiment 2
As shown in Figs. 1-2, present embodiments provide it is a kind of can accurately leveling installation armored concrete precast stair dry type
Interconnection technique, it is characterised in that including terraced beam (2) and be erected at the precast stair (1) on terraced beam (2) top, the precast stair
(1) internal build-in sets built-in fitting one (1), and the ladder beam inside build-in sets the built-in fitting with built-in fitting one (3) position correspondence
Two (4), the built-in fitting one (3) include rim of a cup cup shell (3-1) outwardly and the dowel (3-2) being arranged at the top of cup shell,
The built-in fitting two (4) includes prepared screw-bolt hole plate (4-1) and the welding plate (4-2) for being arranged on prepared screw-bolt hole plate (4-1) top,
Prepared screw-bolt hole plate (4-1) inner wall be provided with high-strength bolt (5) coordinate internal thread, the built-in fitting one (3) and in advance
Connected between embedded part two (4) by high-strength bolt (5).
Precast stair (1) bottom sets 2-4 along the symmetrical built-in fitting one of precast stair (1) longitudinal centre line
(3)。
In the present embodiment, one multiple spot of built-in fitting set and it is symmetrical, enable precast stair load dispersedly to terraced beam pass
Pass.
Embodiment 3
As shown in Figs. 1-2, present embodiments provide it is a kind of can accurately leveling installation armored concrete precast stair dry type
Interconnection technique, it is characterised in that including terraced beam (2) and be erected at the precast stair (1) on terraced beam (2) top, the precast stair
(1) internal build-in sets built-in fitting one (1), and the ladder beam inside build-in sets the built-in fitting with built-in fitting one (3) position correspondence
Two (4), the built-in fitting one (3) include rim of a cup cup shell (3-1) outwardly and the dowel (3-2) being arranged at the top of cup shell,
The built-in fitting two (4) includes prepared screw-bolt hole plate (4-1) and the welding plate (4-2) for being arranged on prepared screw-bolt hole plate (4-1) top,
Prepared screw-bolt hole plate (4-1) inner wall be provided with high-strength bolt (5) coordinate internal thread, the built-in fitting one (3) and in advance
Connected between embedded part two (4) by high-strength bolt (5).
The ladder beam (2) is cast-in-place or precast reinforced concrete structure, and the ox that stretches out is set along terraced beam (2) longitudinal direction is elongated
Leg, bracket choose length and are not less than 200mm, and bracket upper end sets built-in fitting two (4).
In the present embodiment, the bracket that stretches out is set along terraced beam (2) longitudinal direction is elongated, easy to flexibly set built-in fitting two, together
When also make staircase shaping it is more beautiful, bracket chooses length and be not less than 200mm, make built-in fitting two have abundance anchorage zone with
Bearing area.
Embodiment 4
As shown in Figs. 1-2, present embodiments provide it is a kind of can accurately leveling installation armored concrete precast stair dry type
Interconnection technique, it is characterised in that including terraced beam (2) and be erected at the precast stair (1) on terraced beam (2) top, the precast stair
(1) internal build-in sets built-in fitting one (1), and the ladder beam inside build-in sets the built-in fitting with built-in fitting one (3) position correspondence
Two (4), the built-in fitting one (3) include rim of a cup cup shell (3-1) outwardly and the dowel (3-2) being arranged at the top of cup shell,
The built-in fitting two (4) includes prepared screw-bolt hole plate (4-1) and the welding plate (4-2) for being arranged on prepared screw-bolt hole plate (4-1) top,
Prepared screw-bolt hole plate (4-1) inner wall be provided with high-strength bolt (5) coordinate internal thread, the built-in fitting one (3) and in advance
Connected between embedded part two (4) by high-strength bolt (5).
Cup shell (3-1) rim of a cup and bottom of a cup is provided in round or rectangle, rim of a cup sectional dimension is not less than bottom of a cup section
Size, rim of a cup are 20-50mm, wall of cup thickness 3-8mm away from bottom of a cup depth.
The dowel (3-2) is one kind in round steel or screw-thread steel, and dowel (3-2) can be processed into vertical bar or bending reinforcing steel bar.
In the present embodiment, cup shell is conducive to stair and installation, the enough wall thickness of cup shell and depth is directed at high-strength bolt,
When running into earthquake damage, draw opposite with terraced beam of precast stair can be limited and moved, play good antihunt action, dowel materials are wide
General, processing is simple.
Embodiment 5
As shown in Figs. 1-2, present embodiments provide it is a kind of can accurately leveling installation armored concrete precast stair dry type
Interconnection technique, it is characterised in that including terraced beam (2) and be erected at the precast stair (1) on terraced beam (2) top, the precast stair
(1) internal build-in sets built-in fitting one (1), and the ladder beam inside build-in sets the built-in fitting with built-in fitting one (3) position correspondence
Two (4), the built-in fitting one (3) include rim of a cup cup shell (3-1) outwardly and the dowel (3-2) being arranged at the top of cup shell,
The built-in fitting two (4) includes prepared screw-bolt hole plate (4-1) and the welding plate (4-2) for being arranged on prepared screw-bolt hole plate (4-1) top,
Prepared screw-bolt hole plate (4-1) inner wall be provided with high-strength bolt (5) coordinate internal thread, the built-in fitting one (3) and in advance
Connected between embedded part two (4) by high-strength bolt (5).
Prepared screw-bolt hole plate (4-1) bottom lock, prepared screw-bolt hole plate (4-1) top to distance from bottom are arranged to
50-100mm, inner wall internal thread segment length are arranged to 50-70mm, and the welding plate (4-2) is provided in round or square plate.
In the present embodiment, prepared screw-bolt hole plate depth and inner wall internal thread segment length, meet that high-strength bolt is reliably connected, and increase
Big attachment device adjustable range, prepared screw-bolt hole plate top set welding plate to increase two bearing area of built-in fitting.
Embodiment 6
As shown in Figs. 1-2, present embodiments provide it is a kind of can accurately leveling installation armored concrete precast stair dry type
Interconnection technique, it is characterised in that including terraced beam (2) and be erected at the precast stair (1) on terraced beam (2) top, the precast stair
(1) internal build-in sets built-in fitting one (1), and the ladder beam inside build-in sets the built-in fitting with built-in fitting one (3) position correspondence
Two (4), the built-in fitting one (3) include rim of a cup cup shell (3-1) outwardly and the dowel (3-2) being arranged at the top of cup shell,
The built-in fitting two (4) includes prepared screw-bolt hole plate (4-1) and the welding plate (4-2) for being arranged on prepared screw-bolt hole plate (4-1) top,
Prepared screw-bolt hole plate (4-1) inner wall be provided with high-strength bolt (5) coordinate internal thread, the built-in fitting one (3) and in advance
Connected between embedded part two (4) by high-strength bolt (5).
Cup shell (3-1) material is one kind in steel or stainless steel.
Described two (4) material of built-in fitting is one kind in steel or stainless steel.
High-strength bolt (5) surface is zinc-plated.
In the present embodiment, connection component selects non-corrosive material or carries out antirust treatment, strengthens the durability of attachment device.
The above, is only the preferred embodiment of the utility model, is not intended to limit the utility model, the utility model
Scope of patent protection be subject to claims, what every specification and accompanying drawing content with the utility model was made is equal
Structure change, similarly should be included in the scope of protection of the utility model.
Claims (8)
1. it is a kind of can accurately leveling installation armored concrete precast stair dry connecting device, it is characterised in that including terraced beam
(2) and the precast stair (1) on terraced beam (2) top is erected at, the internal build-in of the precast stair (1) sets built-in fitting one (3), institute
Stating build-in setting and the built-in fitting two (4) of built-in fitting one (3) position correspondence, the built-in fitting one (3) inside terraced beam includes rim of a cup
Cup shell (3-1) outwardly and the dowel (3-2) being arranged at the top of cup shell, the built-in fitting two (4) include prepared screw-bolt hole
Plate (4-1) and the welding plate (4-2) for being arranged on prepared screw-bolt hole plate (4-1) top, prepared screw-bolt hole plate (4-1) inner wall are set
There is the internal thread coordinated with high-strength bolt (5), between the built-in fitting one (3) and built-in fitting two (4) by high-strength bolt (5) even
Connect.
2. it is according to claim 1 can accurate leveling installation armored concrete precast stair dry connecting device, it is special
Sign is that precast stair (1) bottom sets 2-4 along the symmetrical built-in fitting one of precast stair (1) longitudinal centre line
(3)。
3. it is according to claim 1 can accurate leveling installation armored concrete precast stair dry connecting device, it is special
Sign is that the ladder beam (2) is cast-in-place or precast reinforced concrete structure, and the ox that stretches out is set along terraced beam (2) longitudinal direction is elongated
Leg, bracket choose length and are not less than 200mm, and bracket upper end sets built-in fitting two (4).
4. it is according to claim 1 can accurate leveling installation armored concrete precast stair dry connecting device, it is special
Sign is, cup shell (3-1) rim of a cup and bottom of a cup is provided in round or rectangle, and rim of a cup sectional dimension is not less than bottom of a cup section ruler
Very little, rim of a cup is 20-50mm, wall of cup thickness 3-8mm away from bottom of a cup depth.
5. it is according to claim 1 can accurate leveling installation armored concrete precast stair dry connecting device, it is special
Sign is that cup shell (3-1) material is one kind in steel or stainless steel.
6. it is according to claim 1 can accurate leveling installation armored concrete precast stair dry connecting device, it is special
Sign is that the dowel (3-2) is one kind in round steel or screw-thread steel, and dowel (3-2) can be processed into vertical bar or bending reinforcing steel bar.
7. it is according to claim 1 can accurate leveling installation armored concrete precast stair dry connecting device, it is special
Sign is that prepared screw-bolt hole plate (4-1) bottom lock, prepared screw-bolt hole plate (4-1) top to distance from bottom is arranged to 50-
100mm, prepared screw-bolt hole plate (4-1) inner wall internal thread segment length are arranged to 50-70mm, the welding plate (4-2) is provided in round
Or square plate.
8. it is according to claim 1 can accurate leveling installation armored concrete precast stair dry connecting device, it is special
Sign is that described two (4) material of built-in fitting is one kind in steel or stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721324458.8U CN207260476U (en) | 2017-10-08 | 2017-10-08 | It is a kind of can accurately leveling installation armored concrete precast stair dry connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721324458.8U CN207260476U (en) | 2017-10-08 | 2017-10-08 | It is a kind of can accurately leveling installation armored concrete precast stair dry connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207260476U true CN207260476U (en) | 2018-04-20 |
Family
ID=61917337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721324458.8U Active CN207260476U (en) | 2017-10-08 | 2017-10-08 | It is a kind of can accurately leveling installation armored concrete precast stair dry connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207260476U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625555A (en) * | 2018-06-20 | 2018-10-09 | 长葛市长润钢结构有限公司 | A kind of stair built-in fitting of perforation type |
| CN110219373A (en) * | 2019-05-28 | 2019-09-10 | 苏州良浦住宅工业有限公司 | A kind of assembled connection structure of precast concrete wall panel and building body |
-
2017
- 2017-10-08 CN CN201721324458.8U patent/CN207260476U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625555A (en) * | 2018-06-20 | 2018-10-09 | 长葛市长润钢结构有限公司 | A kind of stair built-in fitting of perforation type |
| CN110219373A (en) * | 2019-05-28 | 2019-09-10 | 苏州良浦住宅工业有限公司 | A kind of assembled connection structure of precast concrete wall panel and building body |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 644600 Chengzhong Building, Beixi Town, Yibin County, Yibin City, Sichuan Province Patentee after: Sichuan Renming Residential Industrial Technology Co., Ltd. Address before: 644600 Chengzhong Building, Beixi Town, Yibin County, Yibin City, Sichuan Province Patentee before: Yibin Sichuan Ming Ming residential Industrial Technology Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |