CN205777185U - A kind of full assembling concrete beam-type stair - Google Patents
A kind of full assembling concrete beam-type stair Download PDFInfo
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- CN205777185U CN205777185U CN201620518471.6U CN201620518471U CN205777185U CN 205777185 U CN205777185 U CN 205777185U CN 201620518471 U CN201620518471 U CN 201620518471U CN 205777185 U CN205777185 U CN 205777185U
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Abstract
This utility model relates to a kind of building element, particularly a kind of full assembling concrete beam-type stair.It includes stair main body, cast-in-place upper strata landing, cast-in-place upper strata ladder beam, cast-in-place lower floor landing, cast-in-place lower floor ladder beam；Stair main body comprises at least two prefabricated bench beams, multiple prefabricated step plate and reinforces channel-section steel；At least two prefabricated bench beams be arranged in parallel, and their top and bottom are separately mounted on cast-in-place upper strata ladder beam and cast-in-place lower floor ladder beam；The upper end of prefabricated bench beam is provided with out muscle, is provided with steel reinforcement cage in the ladder beam of cast-in-place upper strata, goes out muscle and anchors in steel reinforcement cage and together with being cast in steel reinforcement cage；Reinforce channel-section steel to be connected on the lower surface of at least two prefabricated bench beams；Prefabricated step plate block-by-block is assembled on prefabricated bench beam.Use the stair of said structure, the complicated construction technique used by existing stair main body can be saved, save the engineering time；And die needed quantity is less, highly versatile, a large amount of die cost can be saved, reduce cost.
Description
Technical field
This utility model relates to a kind of building element, particularly a kind of full assembling concrete beam-type stair.
Background technology
Stair are one of requisite basic building blocks in building structure, for the stair of xoncrete structure, mesh
The cast-in-place mode of front employing mostly is built.Owing to stair belong to asymmetric buildings component, use cast-in-place mode of construction
When, pour into a mould link at template support and concrete and there is inconvenience；It addition, use cast-in-place mode to build
The stair made often do not reach design requirement in terms of dimensional accuracy and presentation quality.Along with building industry is modern
The development changed, increasing stair select the mode using prefabrication to produce.But current prefabricated building
Ladder is required for the steel mold of heaviness and costliness substantially, and final stair product is the heaviest, unfavorable
In the lifting that construction is ready-made.
Utility model content
In order to overcome above-mentioned the deficiencies in the prior art, it is mixed that the purpose of this utility model is to propose a kind of full assembling
Solidifying soil stringer type stairway, first, use these stair can save the formwork of cast-in-place concrete stair, assembling reinforcement,
The complicated construction technique of rear pouring concrete, saves the engineering time；It is stupid that next solves the lifting of general precast stair
The problem of weight；It addition, the single component of this utility model is less, the die needed scale of construction is less, highly versatile,
A large amount of die cost can be saved, reduce cost.
For realizing above-mentioned technical purpose, this utility model adopts the following technical scheme that and is achieved.
A kind of full assembling concrete beam-type stair, including stair main body, cast-in-place upper strata landing, cast-in-place on
Layer ladder beam, cast-in-place lower floor landing, cast-in-place lower floor ladder beam；Described stair main body comprise at least two prefabricated
Bench beam, multiple prefabricated step plate and reinforcing channel-section steel；At least two prefabricated bench beams be arranged in parallel, they
Top and bottom are separately mounted on cast-in-place upper strata ladder beam and cast-in-place lower floor ladder beam；The upper end of prefabricated bench beam sets
There is muscle, in the ladder beam of cast-in-place upper strata, be provided with steel reinforcement cage, go out in muscle anchors into steel reinforcement cage and be cast in one with steel reinforcement cage
Rise；Reinforce channel-section steel to be connected on the lower surface of at least two prefabricated bench beams；Prefabricated step plate block-by-block is assembled in
On prefabricated bench beam.
Preferably, prefabricated bench beam is provided with joint bar, and prefabricated step plate is provided with the keying hole inserted for joint bar.
Preferably, the lower corner of described cast-in-place lower floor ladder beam is provided with L-type and takes mouth, under described prefabricated bench beam
End is overlapped on L-type and takes on the horizontal plane of mouth.
Preferably, L-type is taken the horizontal plane of mouth and is provided with screed-coat.
Preferably, described L-type is taken and is provided with gap-grouting material between the vertical plane of mouth and the lower end of stair main body.
Preferably, the lower surface of each described prefabricated bench beam is provided with reinforcing channel-section steel embedded parts, described reinforcing spiral shell
Bolt (8) coordinates with reinforcing channel-section steel embedded parts afterwards through reinforcing channel-section steel (7).
Preferably, reinforce channel-section steel embedded parts and comprise a cannulated threaded pipe, and vertically provide in cannulated threaded pipe
Metal bar, be provided with female thread in described cannulated threaded pipe, female thread coordinates with adding fixing bolt.
Preferably, the upper surface of the top and bottom of described prefabricated bench beam is equipped with lifting built-in fitting.
The beneficial effects of the utility model: stair main body of the present utility model is by the prefabricated bench beam being independently arranged
Form with prefabricated step plate, stair assembling completely, component miniaturization, solve the lifting of general precast stair
Heavy problem.Reinforce channel-section steel and can ensure that the full installation accuracy assembling concrete beam-type stair at erection stage；
Full assembling concrete beam-type stair are installed after terminating, and need the reinforcing channel-section steel retained through seismic resistance calculation, permissible
Improve the complete overall anti-seismic performance assembling concrete beam-type stair.Use the stair of said structure, can save
The formwork of cast-in-situ stair main body, assembling reinforcement, the complicated construction technique of rear pouring concrete, save the engineering time；
It addition, the die needed scale of construction of this utility model is less, highly versatile, a large amount of die cost can be saved, fall
Low cost.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram after this utility model assembles concrete beam-type stair installation entirely.
Fig. 2 is the side-looking structural representation after this utility model assembles concrete beam-type stair installation entirely.
Fig. 3 is the enlarged drawing in Fig. 2 at A.
Fig. 4 is the enlarged drawing in Fig. 2 at B.
Fig. 5 is the structural representation of this utility model stair main body.
Fig. 6 is the fit structure schematic diagram reinforcing channel-section steel with prefabricated bench beam.
Fig. 7 is the structural representation reinforcing channel-section steel.
Fig. 8 is to reinforce channel-section steel embedded parts structural representation.
Fig. 9 is prefabricated bench girder construction schematic diagram.
Figure 10 is the end TV structure schematic diagram of prefabricated bench beam.
Figure 11 is the structural representation of prefabricated step plate.
Figure 12 is prefabricated step plate and prefabricated bench beam assembly node enlarged drawing.
In figure: 1-stair main body；2-cast-in-place upper strata landing；3-cast-in-place upper strata ladder beam；The cast-in-place lower floor of 4-
Landing；5-cast-in-place lower floor ladder beam；6-prefabricated bench beam；7-reinforces channel-section steel；8-adds fixing bolt；9-rises
Hang built-in fitting；The prefabricated step plate of 10-；11-goes out muscle；12-joint bar；13-keying hole；14-anti-slip tank；15-
Gap-grouting material；16-screed-coat；17-cannulated threaded pipe；18-metal bar；19-steel reinforcement cage.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings:
Embodiment 1
Refer to Fig. 1 to Fig. 4, a kind of full assembling concrete beam-type stair that this utility model embodiment provides,
Including stair main body 1, cast-in-place upper strata landing 2, cast-in-place upper strata ladder beam 3, cast-in-place lower floor landing 4,
Cast-in-place lower floor ladder beam 5.
Referring to Fig. 5, described stair main body 1 comprises at least two prefabricated bench beams 6, multiple prefabricated step plate
10 and reinforce channel-section steel 7.Referring to Fig. 2 to Fig. 4, and Fig. 5, at least two prefabricated bench beams 6 are parallel
Arranging, their top and bottom are separately mounted on cast-in-place upper strata ladder beam 3 and cast-in-place lower floor ladder beam 5.Prefabricated
The upper end of bench beam 6 is provided with out muscle 11, is provided with steel reinforcement cage 19, goes out muscle 11 and anchor in cast-in-place upper strata ladder beam 3
Together with in steel reinforcement cage 19 and being cast in steel reinforcement cage 19.Reinforce channel-section steel 7 and be connected at least two prefabricated bench
On the lower surface of beam 6, reinforcing channel-section steel 7 and can arrange multiple, multiple reinforcing channel-section steels 7 can be uniformly arranged on
On the lower surface of at least two prefabricated bench beams 6.Prefabricated step plate 10 block-by-block is assembled on prefabricated bench beam 6.
Assembly method: cast-in-place upper strata landing 2 and cast-in-place upper strata ladder beam 3 integral cast-in-situ；Cast-in-place lower floor
Ladder platform 4 and cast-in-place lower floor ladder beam 5 also integral cast-in-situ, cast-in-place upper strata landing 2 and cast-in-place upper strata ladder beam 3
After completing template support work, clear up cast-in-place lower floor ladder beam 5, lift at least two prefabricated bench beams the most respectively
6；The lower end of at least two prefabricated bench beams 6 is shelved on cast-in-place lower floor ladder beam 5, as shown in Figure 4.Prefabricated
The upper end of bench 6 go out in the steel reinforcement cage 19 that muscle 11 to anchor into cast-in-place upper strata ladder beam 3, at prefabricated step plate
After 10 install, go out muscle 11 and cast-in-place upper strata ladder beam 3 integral cast-in-situ, as shown in Figure 3.And go out muscle 11
Concrete length, crooked process radius by prefabricated bench beam 6 actual arrangement of reinforcement situation determine.Prefabricated at least two
After bench beam 6 carries out leveling and location, use reinforcing channel-section steel 7 that two prefabricated bench beams 6 are reinforced,
As shown in Figure 5.After treating that cast-in-place upper strata landing 2 and cast-in-place upper strata ladder beam 3 reach strength of mould stripping, it is
No dismounting reinforces channel-section steel 7, need to determine according to actual floor height and seismic resistance calculation result.For the reinforcing that can remove
Channel-section steel 7, needs after having removed to use gap-grouting material to seal corresponding built-in fitting.For adding of not removing
Gu channel-section steel 7, corresponding rust preventing need to be taked according to GB50017-2003 " Code for design of steel structures ".
Embodiment 2
On the basis of embodiment 1, referring to Fig. 4, the lower corner of described cast-in-place lower floor ladder beam 5 is provided with L-type
Taking mouth, the lower end of described prefabricated bench beam 6 is overlapped on L-type and takes on the horizontal plane of mouth.
Making owing to cast-in-place lower floor ladder beam 5 is cast-in-place, L-type is taken the horizontal plane existence of mouth and is uneven or the gradient, this
Sample can affect the installation of stair main body, therefore, this utility model L-type take be provided with on the horizontal plane of mouth levelling
Layer 16.Described screed-coat 16 can be pea gravel concreten or high-strength mortar.
Referring to Fig. 4, described L-type is taken and is provided with gap-grouting material 15 between the vertical plane of mouth and stair main body 1, fills
Seam material 15 is High Strength Non-shrinking Filling Material or high-strength mortar.By this gap-grouting material 15 by stair main body 1
It is fixed together with described cast-in-place lower floor ladder beam 5.
Embodiment 3
On the basis of embodiment 1, refer to Fig. 5 to Fig. 8, the lower surface of each described prefabricated bench beam 6
Being equipped with reinforcing channel-section steel embedded parts, described reinforcing channel-section steel embedded parts coordinates will reinforce channel-section steel 7 with adding fixing bolt 8
It is fixedly connected on the lower surface of prefabricated bench beam 6.By reinforcing channel-section steel embedded parts and coordinating of adding fixing bolt 8,
The not only convenient installation reinforcing channel-section steel 7, and facilitate the dismounting of subsequent reinforcement channel-section steel 7.
Refer to Fig. 8, reinforce channel-section steel embedded parts and comprise a cannulated threaded pipe 17, and vertically provide in hollow
The metal bar 18 of corrugated tubing 17, is provided with female thread in described cannulated threaded pipe 17, is used for and adds fixing bolt 8
Coordinate.Cannulated threaded pipe 17 and metal bar 18 are embedded in prefabricated bench beam 6 by this utility model, convenient
Reinforce the installation of channel-section steel 7.
Embodiment 4
On the basis of embodiment 3, refer to Fig. 9 and Figure 10, the fortune of the most described prefabricated bench beam 6
Defeated and mobile, the upper surface of the top and bottom of described prefabricated bench beam 6 is equipped with lifting built-in fitting 9, rises
Hang built-in fitting 9 identical with the structure reinforcing channel-section steel embedded parts.
The lifting of prefabricated bench beam 6 is got up to carry out the assembling of stair by this utility model by lifting built-in fitting 9,
Make the movement of prefabricated bench beam 6 and transport more convenient.Prefabricated bench beam 6 in handling and reinforcing process,
Unit in charge of construction need to be equipped with corresponding hanging bolt according to the built-in fitting 9 of prefabricated bench beam 6 and add fixing bolt.
Embodiment 5
On the basis of embodiment 1, referring to Fig. 9, Figure 11, Figure 12, prefabricated bench beam 6 upper surface sets
Joint bar 12, prefabricated step plate 10 is had to be provided with the keying hole 13 inserted for joint bar 12, and increasing friction force
Anti-slip tank 14.Prefabricated step plate 10 is installed according to keying hole 13 and the corresponding relation of joint bar 12, block-by-block
On prefabricated bench beam 6.Prefabricated step plate 10 described in the utility model and prefabricated bench beam 6 use keying side
Formula, convenient processing and installation, save the set-up time.
Refer to Figure 12, the position joint bar 12 of marking time on prefabricated bench beam 6, it is possible not only to connect as keying
Reinforcing bar use, simultaneously can also be as the reserved steel bar of later stage banister welding.On prefabricated step plate 10
Reserved keying hole 13 acts not only as keying hole 13 and uses, and can also weld as later stage banister simultaneously
The railing hole connect.According to later stage banister positional information, reserve a part of joint bar 12 with banister weld,
Remaining keying hole 13 directly carries out cementation of fissures process, the most as shown in Figure 12, position after stair installation
Do not weld banister in middle keying hole 13 due to the later stage, utilize gap-grouting material 15 to do cementation of fissures process.
In fig. 12, keying hole 13 later stage being positioned at lower end need to weld banister, after stair installation,
Remaining space gap-grouting material 15 cementation of fissures is processed.
Obviously, those skilled in the art this utility model can be carried out various change and modification without deviating from
Spirit and scope of the present utility model.So, if these amendments of the present utility model and modification belong to this reality
Within the scope of novel claim and equivalent technologies thereof, then this utility model is also intended to comprise these changes
With including modification.
Claims (8)
1. full assembling concrete beam-type stair, it is characterised in that include stair main body (1), cast-in-place upper floor
Ladder platform (2), cast-in-place upper strata ladder beam (3), cast-in-place lower floor landing (4), cast-in-place lower floor's ladder beam (5)；
Described stair main body (1) comprises at least two prefabricated bench beams (6), multiple prefabricated step plates (10)
And reinforce channel-section steel (7)；At least two prefabricated bench beams (6) be arranged in parallel, their top and bottom
It is separately mounted on cast-in-place upper strata ladder beam (3) and cast-in-place lower floor's ladder beam (5)；Prefabricated bench beam (6)
Upper end be provided with out muscle (11), be provided with steel reinforcement cage (19) in cast-in-place upper strata ladder beam (3), go out muscle (11)
Together with in anchoring into steel reinforcement cage (19) and being cast in steel reinforcement cage (19)；Reinforce channel-section steel (7) to be connected to
On the lower surface of at least two prefabricated bench beams (6)；Prefabricated step plate (10) block-by-block is assembled in prefabricated ladder
On Duan Liang (6).
Full assembling concrete beam-type stair the most according to claim 1, it is characterised in that prefabricated bench beam (6)
Upper surface is provided with joint bar (12), and prefabricated step plate (10) is provided with the keying inserted for joint bar (12)
Hole (13).
Full assembling concrete beam-type stair the most according to claim 1, it is characterised in that described cast-in-place lower floor ladder beam
(5) lower corner is provided with L-type and takes mouth, and the lower end of described prefabricated bench beam (6) is overlapped on L-type and takes mouth
Horizontal plane on.
Full assembling concrete beam-type stair the most according to claim 3, it is characterised in that L-type takes the horizontal plane of mouth
It is provided with screed-coat (16).
Full assembling concrete beam-type stair the most according to claim 3, it is characterised in that described L-type takes the perpendicular of mouth
Face directly and be provided with gap-grouting material (15) between the lower end of stair main body (1).
Full assembling concrete beam-type stair the most according to claim 1, it is characterised in that each described prefabricated bench
The lower surface of beam (6) is provided with reinforcing channel-section steel embedded parts, described in add fixing bolt (8) through reinforce channel-section steel
(7) coordinate with reinforcing channel-section steel embedded parts afterwards.
Full assembling concrete beam-type stair the most according to claim 6, it is characterised in that reinforce channel-section steel embedded parts bag
Containing a cannulated threaded pipe (17), and vertically provide the metal bar (18) in cannulated threaded pipe (17),
Being provided with female thread in described cannulated threaded pipe (17), female thread coordinates with adding fixing bolt (8).
Full assembling concrete beam-type stair the most according to claim 1, it is characterised in that described prefabricated bench beam (6)
Top and bottom upper surface on be equipped with lifting built-in fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620518471.6U CN205777185U (en) | 2016-05-31 | 2016-05-31 | A kind of full assembling concrete beam-type stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620518471.6U CN205777185U (en) | 2016-05-31 | 2016-05-31 | A kind of full assembling concrete beam-type stair |
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| CN205777185U true CN205777185U (en) | 2016-12-07 |
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| CN201620518471.6U Active CN205777185U (en) | 2016-05-31 | 2016-05-31 | A kind of full assembling concrete beam-type stair |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386548A (en) * | 2017-08-09 | 2017-11-24 | 哈尔滨工业大学深圳研究生院 | A kind of prefabricated assembled light-duty stringer type stairway |
| CN107859255A (en) * | 2017-10-11 | 2018-03-30 | 武汉科技大学 | For the auxiliary connection method of PC stair and landing, device and stair equipment |
| CN108571126A (en) * | 2018-05-09 | 2018-09-25 | 安徽富煌钢构股份有限公司 | A kind of assembled stair |
| CN109695322A (en) * | 2019-02-01 | 2019-04-30 | 蔡君 | Prestressed prefabricated stringer type stairway of one kind and preparation method thereof |
| CN110644698A (en) * | 2019-09-16 | 2020-01-03 | 佛山建装建筑科技有限公司 | Precast concrete beam type stair |
| CN110685411A (en) * | 2018-09-11 | 2020-01-14 | 中天建设集团有限公司 | Separated stair adopting prefabricated steps and installation method thereof |
| CN112523444A (en) * | 2020-12-08 | 2021-03-19 | 中建西部建设建材科学研究院有限公司 | Ultra-high performance concrete prefabricated light and thin stair step and assembly and connection process thereof |
| CN112663882A (en) * | 2020-12-08 | 2021-04-16 | 中建西部建设股份有限公司 | Light and thin type beam type prefabricated staircase made of ultra-high performance concrete and forming process thereof |
-
2016
- 2016-05-31 CN CN201620518471.6U patent/CN205777185U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386548A (en) * | 2017-08-09 | 2017-11-24 | 哈尔滨工业大学深圳研究生院 | A kind of prefabricated assembled light-duty stringer type stairway |
| CN107859255A (en) * | 2017-10-11 | 2018-03-30 | 武汉科技大学 | For the auxiliary connection method of PC stair and landing, device and stair equipment |
| CN108571126A (en) * | 2018-05-09 | 2018-09-25 | 安徽富煌钢构股份有限公司 | A kind of assembled stair |
| CN110685411A (en) * | 2018-09-11 | 2020-01-14 | 中天建设集团有限公司 | Separated stair adopting prefabricated steps and installation method thereof |
| CN109695322A (en) * | 2019-02-01 | 2019-04-30 | 蔡君 | Prestressed prefabricated stringer type stairway of one kind and preparation method thereof |
| CN110644698A (en) * | 2019-09-16 | 2020-01-03 | 佛山建装建筑科技有限公司 | Precast concrete beam type stair |
| CN112523444A (en) * | 2020-12-08 | 2021-03-19 | 中建西部建设建材科学研究院有限公司 | Ultra-high performance concrete prefabricated light and thin stair step and assembly and connection process thereof |
| CN112663882A (en) * | 2020-12-08 | 2021-04-16 | 中建西部建设股份有限公司 | Light and thin type beam type prefabricated staircase made of ultra-high performance concrete and forming process thereof |
| CN112663882B (en) * | 2020-12-08 | 2022-05-10 | 中建西部建设股份有限公司 | Light and thin type beam type prefabricated staircase made of ultra-high performance concrete and forming process thereof |
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