CN207633665U - Precast stair plate - Google Patents
Precast stair plate Download PDFInfo
- Publication number
- CN207633665U CN207633665U CN201721129822.5U CN201721129822U CN207633665U CN 207633665 U CN207633665 U CN 207633665U CN 201721129822 U CN201721129822 U CN 201721129822U CN 207633665 U CN207633665 U CN 207633665U
- Authority
- CN
- China
- Prior art keywords
- plate
- precast stair
- parts
- handrail column
- fitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Steps, Ramps, And Handrails (AREA)
Abstract
The utility model discloses precast stair plates, upper mounting plate plate including prefabricated integrally formed step plate and above step plate, the middle landing slab below step plate, it is characterized in that, the handrail column bottom girder for arranging handrail column is also set up positioned at step plate side, multiple handrail columns built-in fitting is provided on handrail column bottom girder, it is provided on the step of the step plate multiple for lifting built-in fitting, and is biased to handrail column bottom girder side in the upper mounting plate plate and middle landing slab and is also respectively provided with the groove to concave.This is used for the concrete formulation of the precast stair plate, includes the raw material of following mass component, respectively：160 180 parts of water；260 290 parts of cement；700 800 parts of sand；1,130 1200 parts of coarse aggregate；50 70 parts of admixture；2 10 parts of additive；The utility model is convenient for the installation and preparation of precast stair plate by adjusting the structure of precast stair plate, adjusts its concrete formulation and increases its economy, reduces manufacturing cost.
Description
Technical field
The utility model is related to building materials fields, and in particular to precast stair plate.
Background technology
A kind of preferable structure type that precast stair plate is prefabricated and cast-in-place concrete is combined, laminated floor slab are existing with top
Pouring concrete layer is combined into an entirety, works together.Laminated floor slab has that the globality of cast-in-situ floor, rigidity is big, cracking resistance
Property it is good, do not increase reinforcing bar consumption, save template the advantages that, be the representative of prefabrication product.
Precast stair plate and its concrete formulation have that batch production processing, speed of application be fast, comprehensive cost low, globality
The advantages such as good, anti-seismic performance is good, construction weatherproof.But simple precast stair plate and its concrete formulation are difficult to meet
The normal requirements such as engineering stress and durable years, and simple common precast stair plate and its concrete formulation weight compares
Weight, therefore bring and between precast stair plate and its concrete formulation how just can be reliably connected and how to be assembled
Problem.
Utility model content
The purpose of this utility model is to provide precast stair plate and its concrete formulations, by adjusting precast stair plate
Structure is convenient for the installation and preparation of precast stair plate, adjusts its concrete formulation and increases its economy, reduces manufacturing cost.
To achieve the above object, the utility model provides the following technical solutions：Precast stair plate, including prefabricated integrated molding
Step plate and the upper mounting plate plate above step plate, the middle landing slab below step plate, which is characterized in that be located at
Step plate side also sets up the handrail column bottom girder for arranging handrail column, and it is pre- to be provided with multiple handrail columns on handrail column bottom girder
Embedded part, be provided on the step of the step plate it is multiple for lifting built-in fitting, and in the upper mounting plate plate and middle landing slab
It is biased to handrail column bottom girder side and is also respectively provided with the groove to concave.
Preferably, two anti-slip tanks to lower recess, the anti-slip tank are there also is provided on each step of the step plate
Arranged direction and pedestrian it is perpendicular along pedal direction of travel.
Preferably, the drip being recessed upwards is also set up close to the bottom surface on handrail column in the step plate, and described is dripped
The cross section of line is in isosceles trapezoid.
Preferably, it is also respectively disposed on the upper mounting plate plate and middle landing slab through through-hole, the through-hole section is in
It is rectangular, and three are additionally provided with inside the square through hole to the Q-RING extended out.
Preferably, handrail column built-in fitting includes the concave station for being used for joints cement mortar in the later stage, concave station bottom surface cloth
Be equipped be embedded in concrete and with the pre-embedded steel slab of exposing surface, below the steel plate setting there are two inverted u-shaped built-in fitting,
And it is welded on steel plate bottom at the top of inverted u-shaped built-in fitting.
This is used for the concrete formulation of the precast stair plate, includes the raw material of following mass component, respectively：
160-180 parts of water；
260-290 parts of cement；
700-800 parts of sand；
1130-1200 parts of coarse aggregate；
50-70 parts of admixture；
2-10 parts of additive；
Wherein, it is F. II that the admixture, which selects flyash, specification, and the additive is using water-reducing agent, specification
Poly- hydroxy acid ZWL-PC.
Preferably, it is II -52.5MPa of P., sand during the sand uses, fineness that the cement, which uses Jiangxi Yadong, specification,
Modulus is 2.3-3.0, and moisture control is 5 ± 0.8%；The coarse aggregate uses rubble, grade 5-25mm, water content
Control is 1 ± 0.2%.
Preferably, the concrete formulation includes the raw material of following mass component, respectively：170 parts of water；275 parts of cement；
800 parts of sand；1150 parts of coarse aggregate；55 parts of admixture；4 parts of additive.
The installation method of the precast stair plate, includes the following steps:
S1, the staircase boards of prefabricated completion and the handrail column that will be installed are transported to construction site；
S2, handrail column are installed to staircase boards, and the supporting rod bottom on handrail column is placed on handrail column according to design requirement
In the concave station of built-in fitting, and the steel plate of supporting rod bottom and handrail column built-in fitting is welded, then the joints cement sand into concave station
It starches to its solidification；
S3, precast stair plate are installed into corridor, are sling to corridor by the lifting built-in fitting on precast stair plate
Predeterminated position, then staircase boards are fixed by scaffold；
S4, in the support construction that the upper mounting plate plate of precast stair plate and middle landing slab correspond to cast-in-place rod structure respectively, and
Groove between the precast stair plate of two adjacent installations and joint casting concrete.
Compared with prior art, the beneficial effects of the utility model are as follows：
1, its is simple in structure for precast stair plate provided by the utility model, and disclosure satisfy that people walk the demands of stair,
So that industrialized production may be implemented in prefabrication process, accelerate the progress of construction, and prefabricated on the precast stair plate
Just shift to an earlier date the handrail column built-in fitting on pre-buried docking handrail column in the process so that handrail column at the scene can quickly and precast stair
Hardened conjunction；
2 at the same precast stair plate provided by the utility model further include function that other staircase boards have, as anti-slip tank,
Drip and run through through-hole, these components it is prefabricated in advance, the precision of preparation can be greatly improved compared with than in site operation, and
And three Q-RINGs being arranged in the through-hole can improve concrete sealing after Pipe installing through the leakproofness of through-hole and steady
Qualitative, in order to facilitate the installation of precast stair plate, landing slab and middle landing slab docking side setting are fluted on it, in groove from
The reinforcing bar of upper mounting plate plate and middle landing slab protrusion is bound now in abutting joint, is then being carried out concreting, is being made
It is in cross to obtain the concrete structure section poured now, avoids the generation of construction joint water leakage situation, and makes the two docking
The structural stability of precast stair plate improves；
3, in handrail column built-in fitting inverted U built-in fitting design, increase handrail column built-in fitting and precast stair plate coagulation
The tight type of soil connection, and pre-embedded steel slab also submerges in concrete and only exposing surface, and concave station internal water accumulation is avoided to cause handrail column
Built-in fitting submerges concrete parts and the occurrence of rust is dead occurs, and only exposing surface then facilitates it to be welded with handrail column support portion；
4 and prepare precast stair plate concrete formulation design, it is pre- in the case that can be greatly reinforced using identical cement
The intensity of speed processed and precast stair plate, it is ensured that the economy of precast stair plate；
5, the installation method of precast stair plate is simple, easy to operate, constructs convenient for field worker.
Description of the drawings
Fig. 1 is precast stair plate vertical view provided by the utility model；
Fig. 2 is precast stair plate rearview provided by the utility model；
Fig. 3 is the sectional view for running through through hole in precast stair plate provided by the utility model；
Fig. 4 is precast stair plate upward view provided by the utility model；
Fig. 5 is the enlarged diagram at A in Fig. 1.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
It please refers to Fig.1 to Fig. 5, the utility model provides a kind of technical solution：
The precast stair plate, including prefabricated integrally formed step plate 1 and upper mounting plate plate 2 above step plate 1,
Middle landing slab 3 positioned at 1 lower section of step plate, which is characterized in that also set up positioned at 1 side of step plate for arranging helping for handrail column
Hand column bottom girder 4 is provided with multiple handrail columns built-in fitting 41 on handrail column bottom girder 4, is set on the step 11 of the step plate 1
It is equipped with multiple for lifting built-in fitting 12, and is biased to 4 side of handrail column bottom girder in the upper mounting plate plate 2 and middle landing slab 3 and also divides
It is not provided with the groove 5 to concave.Two anti-slip tanks to lower recess are there also is provided on 1 each step 11 of the step plate
13, the arranged direction of the anti-slip tank 13 and pedestrian are perpendicular along pedal direction of travel.In the step plate 1 close to handrail column
Bottom surface also set up the drip 14 being recessed upwards, and the cross section of the drip 14 is in isosceles trapezoid.In the upper mounting plate
It is also respectively disposed on plate 2 and middle landing slab 3 through through-hole 51,51 section of the through-hole is square, and in the square through hole 51
Portion is additionally provided with three to the Q-RING 52 extended out.Handrail column built-in fitting 41 includes the later stage for the recessed of joints cement mortar
Platform 42,42 sole arrangement of the concave station have be embedded in concrete and with the pre-embedded steel slab of exposing surface 43, under the steel plate 43
There are two inverted u-shaped built-in fittings 44 for side's setting, and 44 top of inverted u-shaped built-in fitting is welded on 43 bottom of steel plate.
Its is simple in structure for precast stair plate provided by the utility model, and disclosure satisfy that the demand of people's walking stair, makes
It obtains and industrialized production may be implemented in prefabrication process, accelerate the progress of construction, and in prefabricated mistake on the precast stair plate
Just shift to an earlier date the handrail column built-in fitting 41 on pre-buried docking handrail column in journey so that handrail column at the scene can quickly and precast stair
Hardened conjunction, while precast stair plate provided by the utility model further includes the function that other staircase boards have, such as anti-slip tank 13, drop
Waterline 14 and run through through-hole 51, these components it is prefabricated in advance, the precision of preparation can be greatly improved compared with than in site operation,
And concrete sealing is through the close of through-hole 51 after three Q-RINGs 52 being arranged in through-hole 51 can improve Pipe installing
Envelope property and stability, in order to facilitate the installation of precast stair plate, landing slab 2 and the docking of middle landing slab 3 side are provided with recessed on it
Slot 5, the reinforcing bar protruded from upper mounting plate plate 2 and middle landing slab 3 in groove 5 are bound now in abutting joint, then into
Row concreting so that the concrete structure section poured now is in cross, avoids the generation of construction joint water leakage situation,
And the structural stability of the two docking precast stair plate is improved.The design of inverted U built-in fitting 44 in handrail column built-in fitting 41,
The tight type that handrail column built-in fitting 41 is connect with precast stair board concrete is increased, and pre-embedded steel slab 43 also submerges in concrete
And only exposing surface, it avoids 42 internal water accumulation of concave station that handrail column built-in fitting 41 is caused to submerge concrete parts and occurs becoming rusty the hair of dead situation
Raw, only exposing surface then facilitates it to be welded with handrail column support portion.
This is used for the concrete formulation of the precast stair plate, includes the raw material of following mass component, respectively：
160-180 parts of water；
260-290 parts of cement；
700-800 parts of sand；
1130-1200 parts of coarse aggregate；
50-70 parts of admixture；
2-10 parts of additive；
Wherein, it is F. II that the admixture, which selects flyash, specification, and the additive is using water-reducing agent, specification
Poly- hydroxy acid ZWL-PC.
It is II -52.5MPa of P. that the cement, which uses Jiangxi Yadong, specification, sand in the sand use, and fineness modulus is
2.3-3.0, and moisture control is 5 ± 0.8%；The coarse aggregate uses rubble, and grade 5-25mm, water content control is 1
±0.2%。
Embodiment 1
The concrete formulation includes the raw material of following mass component, respectively：170 parts of water；275 parts of cement；Sand 800
Part；1150 parts of coarse aggregate；55 parts of admixture；4 parts of additive.
Embodiment 2
The concrete formulation includes the raw material of following mass component, respectively：180 parts of water；290 parts of cement；Sand 800
Part；1200 parts of coarse aggregate；70 parts of admixture；10 parts of additive.
Embodiment 3
The concrete formulation includes the raw material of following mass component, respectively：160 parts of water；260 parts of cement；Sand 700
Part；1130 parts of coarse aggregate；50 parts of admixture；2 parts of additive.
Embodiment 4
The concrete formulation includes the raw material of following mass component, respectively：170 parts of water；275 parts of cement；Sand 700
Part；1150 parts of coarse aggregate；70 parts of admixture；8 parts of additive.
Concrete test block is prepared using above-described embodiment 1-4 concrete formulations to be tested, specific test result is as follows：
Above-mentioned test data can be seen that：It may insure that precast stair plate reaches after 1d using the recipe ratio of embodiment 1
The 92% of compression strength after 30D, operating personnel can carry out form removal with prefabricated rear 1d and be hoisted to maintenance workshop, save prefabricated place.Therefore
The concrete formulation design for preparing precast stair plate can greatly reinforce prefabricated speed and prefabricated using identical cement
The intensity of staircase boards, it is ensured that the economy of precast stair plate.
The installation method of the precast stair plate, includes the following steps:
S1, the staircase boards of prefabricated completion and the handrail column that will be installed are transported to construction site；
S2, handrail column are installed to staircase boards, and the supporting rod bottom on handrail column is placed on handrail column according to design requirement
In the concave station 42 of built-in fitting 41, and supporting rod bottom and the steel plate 43 of handrail column built-in fitting 41 are welded, then into concave station 42
Joints cement mortar to its solidify；
S3, precast stair plate are installed into corridor, are sling to building by the lifting built-in fitting 12 on precast stair plate
Then the predeterminated position in road is fixed staircase boards by scaffold；
S4, precast stair plate upper mounting plate plate 2 and middle landing slab 3 correspond to cast-in-place rod structure respectively support construction on,
And the groove 5 between the precast stair plate of two adjacent installations and joint casting concrete.
The installation method of precast stair plate is simple, easy to operate, constructs convenient for field worker.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. precast stair plate, including prefabricated integrally formed step plate and upper mounting plate plate above step plate, positioned at stepping on
Walk the middle landing slab below plate, which is characterized in that the handrail column bottom girder for arranging handrail column is also set up positioned at step plate side,
It is provided with multiple handrail columns built-in fitting on handrail column bottom girder, is provided on the step of the step plate multiple for lifting
Built-in fitting, and be biased to handrail column bottom girder side in the upper mounting plate plate and middle landing slab and be also respectively provided with the groove to concave.
2. precast stair plate according to claim 1, which is characterized in that there also is provided on each step of the step plate
Two anti-slip tanks to lower recess, the arranged direction of the anti-slip tank and pedestrian are perpendicular along pedal direction of travel.
3. precast stair plate according to claim 1, which is characterized in that the step plate close to handrail column bottom surface also
The drip being recessed upwards is set, and the cross section of the drip is in isosceles trapezoid.
4. precast stair plate according to claim 1, which is characterized in that also divide on the upper mounting plate plate and middle landing slab
It is not disposed with through through-hole, the through-hole section is square, and it is rectangular to what is extended out that three are additionally provided with inside the square through hole
Ring.
5. precast stair plate according to claim 1, which is characterized in that handrail column built-in fitting includes the later stage for pouring
Build the concave station of cement mortar, the concave station sole arrangement have be embedded in concrete and with the pre-embedded steel slab of exposing surface, it is described
There are two inverted u-shaped built-in fittings for setting below steel plate, and are welded on steel plate bottom at the top of inverted u-shaped built-in fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721129822.5U CN207633665U (en) | 2017-09-05 | 2017-09-05 | Precast stair plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721129822.5U CN207633665U (en) | 2017-09-05 | 2017-09-05 | Precast stair plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207633665U true CN207633665U (en) | 2018-07-20 |
Family
ID=62861438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721129822.5U Expired - Fee Related CN207633665U (en) | 2017-09-05 | 2017-09-05 | Precast stair plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207633665U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503479A (en) * | 2017-09-05 | 2017-12-22 | 平湖万家兴建筑工业有限公司 | Precast stair plate and its concrete formulation |
-
2017
- 2017-09-05 CN CN201721129822.5U patent/CN207633665U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503479A (en) * | 2017-09-05 | 2017-12-22 | 平湖万家兴建筑工业有限公司 | Precast stair plate and its concrete formulation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103898831B (en) | Prefabricated assembled arch rib of ultrahigh-performance concrete and manufacturing and mounting method thereof | |
| CN107297810A (en) | A kind of making of precast wall body component and installation method | |
| CN106894347B (en) | A kind of splicing bridge and bridge reorganization and expansion method based on cast-in-place united layer supertronic | |
| CN106930194B (en) | Inter-tie and pier stud global formation construction method and template used holder | |
| CN101768916A (en) | Lower flange improved corrugated steel web plate composite box girder and construction method thereof | |
| CN107090908B (en) | A kind of vertical prefabricated components joint connecting method | |
| CN106088493A (en) | A kind of pin key connects mounting structure and the construction thereof of prefabricated bench | |
| CN111958815A (en) | Separated prefabricated prestressed concrete slab stair and production process thereof | |
| CN107143076A (en) | A kind of Prefabricated stacking floor with side flanging and its construction method for being used to drop plate region | |
| CN105133487A (en) | Combined type bridge temporary support and construction method for rapidly building continuous beams by virtue of same | |
| CN110905113A (en) | Construction method of large-span concrete dome structure | |
| CN107386246B (en) | A kind of lock chamber wall Construction Through Form on Traveler method | |
| CN206859480U (en) | A kind of assembled large span combines steel truss concrete superimposed sheet | |
| CN111576236A (en) | Method for mounting integral type prefabricated bridge deck auxiliary structure | |
| CN103306483A (en) | Industrial construction method of building | |
| CN107268417A (en) | A kind of highway steel reinforced concrete combined beam structure based on assembling | |
| CN207633665U (en) | Precast stair plate | |
| CN106968380B (en) | A kind of assembled large span combination steel truss concrete superimposed sheet and its construction method | |
| CN104647587B (en) | Combined sleeve driving type steel structure girder fabricating table seat and prefabricated box girder combined sleeve driving method | |
| CN108571173A (en) | It is a kind of it is full assembly sunk type floor making and installation method | |
| US2373072A (en) | Rigid frame bridge and method of making the same | |
| CN106368445B (en) | Existing building reinforces self-supporting heat-insulating integral system and construction method | |
| JP2000345515A (en) | High-strength light composite girder bridge and construction method therefor | |
| CN107503479A (en) | Precast stair plate and its concrete formulation | |
| CN110230414A (en) | A kind of assembled platform canopy and its installation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180720 Termination date: 20210905 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |