CN208396295U - A kind of open-cut station construction stair formwork erecting structure - Google Patents

A kind of open-cut station construction stair formwork erecting structure Download PDF

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Publication number
CN208396295U
CN208396295U CN201821047785.8U CN201821047785U CN208396295U CN 208396295 U CN208396295 U CN 208396295U CN 201821047785 U CN201821047785 U CN 201821047785U CN 208396295 U CN208396295 U CN 208396295U
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China
Prior art keywords
flitch
stair
steel pipe
bed die
open
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CN201821047785.8U
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Chinese (zh)
Inventor
孟庆龙
赵晨阳
岳仁峰
范端文
刘明华
吴传锋
何富思
姜娜
杨东宝
郑开
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Beijing Municipal Construction Co Ltd
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Beijing Municipal Construction Co Ltd
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Abstract

The utility model discloses a kind of open-cut station construction stair formwork erecting structures, including bed die, step side form, flitch one, steel pipe support, flitch two, flitch corner cut and stair step, the bed die is erected at the bottom of stair in advance, stair are equipped with several grades of stair steps, stair step upper end is equipped with step surface, and reinforcing bar is banded on bed die, is provided with step side form on the upside of bed die, bed die is arranged with flitch one, and flitch once presses the gradient setting steel pipe support of stair;The utility model by setting up bed die and step side form in advance; and fixation is supported by steel pipe support; form an entirety; so that the step side form of two sides bears the load generated when coagulation pours jointly, finished product protection effectively is carried out to armored concrete, it is ensured that the cast-in-place construction quality for building stair; improve the overall stability of formwork erecting structure; the accuracy of each spots localization of stair is improved, the speed of installation and demoulding is improved, it is easy to promote and utilize.

Description

A kind of open-cut station construction stair formwork erecting structure
Technical field
The utility model relates to underground structrue engineering fields, more specifically, it relates to which building is used in a kind of construction of open-cut station Terraced formwork erecting structure.
Background technique
Traditional subway station is built frequently with cut and cover method, cap excavation method or shield method, these subway station methods of construction are equal Have the defects that certain, can only can be applicable in for a certain special geology or environmental condition.With Construction Technique of Underground Works And the progress of new material manufacture craft, there is the new method using prefabricated parts subway station, this method has ring Border pollution is small, does not block the traffic, the features such as speed of application is fast, has vast potential for future development.
After the completion of existing underground station construction, construction stair are generally required to, now most open cut vehicles in China Stair of standing are all made of cast-in-place concrete stair.During cast-in-place concrete stair construction, since the template of stair is scrappy, no Entirety can be formed, is easy to be deformed under load action, stair size hardly results in guarantee;Since stair are construction personnel Upper and lower channel binds mounted stair and is highly susceptible to trample, and stair reinforcing bar hardly results in protection;In concreting In the process, since the concreting of stair lags behind the concreting of plate, when plate concrete reaches what upper people required When, stair concrete strength does not reach but, seriously delays construction, and concrete after molding also hardly results in protection;Due to Stair are inclined-planes, and step side form plate bears the load generated when coagulation pours when concreting, it is easy to generate cold seam, disconnected It splits, time-consuming work consuming, influences structure safety.The above various reasons cause that stair concrete dimensional discrepancy is serious, reinforcement location is wrong Position, negative tendon protective layer thickness is larger, cracking occur, surface lacks the common quality defects such as stupefied arrisdefect, rugged.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of open-cut station construction stair Formwork erecting structure, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions:
A kind of open-cut station construction stair formwork erecting structure, including bed die, step side form, flitch one, steel pipe support, flitch Two, flitch corner cut and stair step, the bed die are erected at the bottom of stair in advance, and stair are equipped with several grades of stair steps, Stair step upper end is equipped with step surface, and reinforcing bar is banded on bed die, is provided with step side form on the upside of bed die, bed die is arranged with wood Fang Yi, flitch once press the gradient setting steel pipe support of stair, and steel pipe support is by steel tube poles, steel pipe horizon bar and bar group of sweeping the floor At;The step side form uses flitch two, and two lower part of flitch is equipped with flitch corner cut, and step side form is set by angle steel and stair top The flitch two set is fixed, and stair top flitch two is fixed on the concrete floor poured, and wooden unit withstands on two end of flitch, Top is equipped with bearing diagonal flitch and is fixed on and poured on the concrete wall being poured in, and two bearing diagonal flitch lower parts are connected with a flitch It connects, the top and the bottom of flitch two are respectively connected with a flitch, form an entirety.
Further, the slit width of form joint is not more than 1mm when the bed die installs, and seam crossing is pasted with adhesive tape and stitched.
Further, the flitch one is 300mm having a size of 50 × 100mm, the spacing of flitch one.
Further, the steel pipe support vertical supporting spacing is not more than 1200mm.
Further, the steel tube poles are set up vertically, and steel pipe horizon bar level sets up and connect with steel tube poles, steel pipe water It is connected with bar of sweeping the floor on steel tube poles below flat bar, bar of sweeping the floor is vertical with steel pipe horizon bar antarafacial, and steel tube poles, steel pipe are horizontal Bar and the bar three that sweeps the floor are interconnected to form three-dimensional supporting construction.
Further, the steel tube poles bottom is placed on concrete floor, and the spacing between adjacent steel tube poles is steel Pipe support width, steel pipe support width a are 900mm-1200mm.
Further, for the flitch two with a thickness of 50mm, two height of flitch is identical as the high c that marks time of stair step.
Further, the size of the flitch two is 50 × 100mm, and two lower part of flitch is set by stair series and shape of marking time 50mm thickness triangle timber wedge is set, is linked together with flitch two, two spacing of flitch is no more than 100mm, the wide b that mark time at different levels to mark time Unanimously.
Further, the bed die is seven splint constructions, and the spacing that the steel pipe horizon bar of steel pipe support is mutual is 1800mm。
Further, the size of the angle steel is 25 × 3mm, and angle steel is fixed by screw and step side form and flitch two.
In conclusion the utility model has the advantages that compared with prior art
The stair formwork erecting structure of the utility model, by setting up bed die and step side form in advance, and by steel pipe support into Row support is fixed, and an entirety is formed, so that the step side form of two sides bears the load generated when coagulation pours jointly, effectively Finished product protection is carried out to armored concrete, it is ensured that the cast-in-place construction quality for building stair improves the overall stability of formwork erecting structure, Improve the accuracy of each spots localization of stair;Its assembly and disassembly is easy simultaneously, easy for construction, saves material, reduces construction cost, is accelerated Construction speed improves the speed of installation and demoulding, easy to promote and utilize;And steel pipe support is utilized to carry out template, flitch It installs and is formed, be less prone to problem on deformation, conducive to the guarantee of construction quality, very good solution the art is all the time It is difficult to ensure the construction difficult problem of stair step quality in terms of stair formwork erecting, there is good practicability.
For the structure feature and effect for more clearly illustrating the utility model, come with reference to the accompanying drawing with specific embodiment pair The utility model is described in detail.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the enlarged diagram of A in Fig. 1.
Appended drawing reference: 1- bed die, 2- reinforcing bar, 3- step side form, 4- adhesive tape, 5- flitch one, 6- steel pipe support, 7- steel pipe Upright bar, 8- steel pipe horizon bar, 9- are swept the floor bar, 10- concrete floor, seven clamping plate of 11-, 12- flitch two, 13- flitch corner cut, 14- Stair step, 15- step surface, 16- triangle timber wedge, 17- angle steel, 18- screw.
Wherein, a- steel pipe support width, the b- wide, c- that marks time mark time height.
Specific embodiment
The technical solution of the utility model is described further in the following with reference to the drawings and specific embodiments.
Referring to Fig. 1-2, a kind of open-cut station construction stair formwork erecting structure, including bed die 1, step side form 3, flitch 1, Steel pipe support 6, flitch 2 12, flitch corner cut 13 and stair step 14, the bed die 1 are erected at the bottom of stair, stair in advance Several grades of stair steps 14 are equipped with, 14 upper end of stair step is equipped with step surface 15, reinforcing bar 2 is banded on bed die 1, on bed die 1 Side frame is equipped with step side form 3.
In construction in order to better ensure that stair step 14 flatness and the height at different levels marked time it is consistent, stair formwork erecting It installs as follows:
1, formwork sequence: stair have first propped up bed die 1, then assembling reinforcement 2, then branch step side form 3.
2, form joint requirement when branch bed die 1: slit width is not more than 1mm, and seam crossing is pasted with adhesive tape 4 and stitched, template flatness Meet design and code requirement.
3, bed die 1 is lower is arranged 50 × 100mm flitch 1, and the spacing of flitch 1 is 300mm, and flitch 1 is lower by stair Steel pipe support 6 is arranged in gradient, and the 6 vertical supporting spacing of steel pipe support of stair is not more than 1200mm.
The steel pipe support 6 is made of steel tube poles 7, steel pipe horizon bar 8 and bar 9 of sweeping the floor, and steel tube poles 7 are set up vertically, Steel pipe horizon bar 8 is horizontal to be set up and connect with steel tube poles 7, is connected with bar of sweeping the floor on the steel tube poles 7 of 8 lower section of steel pipe horizon bar 9, bar 9 of sweeping the floor is vertical with 8 antarafacial of steel pipe horizon bar, and steel tube poles 7, steel pipe horizon bar 8 and 9 three of bar that sweeps the floor are interconnected to form Three-dimensional supporting construction;7 bottom of steel tube poles is placed on concrete floor 10, and the spacing between adjacent steel tube poles 7 is Steel pipe support width, steel pipe support width a are 900mm-1200mm.
4, step side form 3 uses 50mm thickness flitch 2 12, and 2 12 height of flitch is identical as the high c that marks time of stair step 14, 2 12 lower part of flitch is equipped with flitch corner cut 13, can smear when guaranteeing concrete plastering to corner.
5, step side form 3 is fixed by 50 × 100mm flitch 2 12 of angle steel 17 and the setting of stair top, under flitch 2 12 50mm thickness triangle timber wedge 16 is arranged by stair series and shape of marking time in portion, links together with flitch 2 12, each to guarantee The wide b that marks time that grade is marked time is consistent.When pour concrete, flitch 2 12 that the lateral pressure of stair step side form 3 is arranged by stair top It bears, flitch 2 12 is arranged by spacing no more than 100mm.
6, stair top flitch 2 12 is fixed on the concrete floor poured, withstands on end with wooden unit, top is each Place is fixed with oblique flitch and has been poured on the concrete wall being poured in, then is pulled up two bearing diagonal flitch lower parts with a flitch, to increase Add its stability;The top and the bottom of stair top flitch 2 12 are respectively connected with a flitch, an entirety is formed.
Preferably, in the present embodiment, the bed die 1 is made of seven clamping plates 11, and the steel pipe of steel pipe support 6 is horizontal The mutual spacing of bar 8 is 1800mm.
The size of the angle steel 17 is 25 × 3mm, and angle steel 17 is fixed by screw 18 and step side form 3 and flitch 2 12.
Technical principle of the utility model has been described above with reference to specific embodiments, is only the preferred implementation of the utility model Mode.The protection scope of the utility model is not limited merely to above-described embodiment, technology belonging to the idea of the present invention Scheme belongs to the protection scope of the utility model.Those skilled in the art, which does not need to pay for creative labor, to be associated To other specific embodiments of the utility model, these modes are fallen within the protection scope of the utility model.

Claims (10)

1. a kind of open-cut station construction stair formwork erecting structure, including bed die (1), step side form (3), flitch one (5), steel pipe branch Frame (6), flitch two (12), flitch corner cut (13) and stair step (14), which is characterized in that the bed die (1) is erected in advance The bottom of stair, stair are equipped with several grades of stair steps (14), and stair step (14) upper end is equipped with step surface (15), bed die (1) it is banded with reinforcing bar (2), is provided with step side form (3) on the upside of bed die (1), bed die (1) is arranged with flitch one (5), flitch on Steel pipe support (6) are set by the gradient of stair under one (5), steel pipe support (6) is by steel tube poles (7), steel pipe horizon bar (8) and sweeps The thin end of the scroll (9) composition;The step side form (3) uses flitch two (12), and flitch two (12) lower part is equipped with flitch corner cut (13), marks time Side form (3) is fixed by the flitch two (12) of angle steel (17) and the setting of stair top, and stair top flitch two (12) is fixed on On the concrete floor poured, wooden unit withstands on flitch two (12) end, and top is equipped with bearing diagonal flitch and is fixed on and has been poured On good concrete wall, piece flitch in two bearing diagonal flitch lower parts is connected, and a wood strip is respectively used in the top and the bottom of flitch two (12) Side connects, and forms an entirety.
2. a kind of open-cut station construction stair formwork erecting structure according to claim 1, which is characterized in that the bed die (1) slit width of form joint is not more than 1mm when installing, and seam crossing is pasted with adhesive tape (4) and stitched.
3. a kind of open-cut station construction stair formwork erecting structure according to claim 1, which is characterized in that the flitch one (5) having a size of 50 × 100mm, the spacing of flitch one (5) is 300mm.
4. a kind of open-cut station construction stair formwork erecting structure according to claim 1, which is characterized in that the steel pipe branch Frame (6) vertical supporting spacing is not more than 1200mm.
5. a kind of open-cut station construction stair formwork erecting structure according to claim 1, which is characterized in that the steel pipe is vertical Bar (7) is set up vertically, and steel pipe horizon bar (8) is horizontal to be set up and connect with steel tube poles (7), the steel below steel pipe horizon bar (8) It is connected in pipe upright bar (7) bar of sweeping the floor (9), bar of sweeping the floor (9) is vertical with steel pipe horizon bar (8) antarafacial, steel tube poles (7), steel pipe Horizon bar (8) and bar of sweeping the floor (9) three are interconnected to form three-dimensional supporting construction.
6. a kind of open-cut station construction stair formwork erecting structure according to claim 5, which is characterized in that the steel pipe is vertical Bar (7) bottom is placed on concrete floor (10), and the spacing between adjacent steel tube poles (7) is steel pipe support width, steel pipe Support width a is 900mm-1200mm.
7. a kind of open-cut station construction stair formwork erecting structure according to claim 1, which is characterized in that the flitch two (12) with a thickness of 50mm, flitch two (12) is highly identical as the high c that marks time of stair step (14).
8. a kind of open-cut station construction stair formwork erecting structure according to claim 1, which is characterized in that the flitch two (12) size is 50 × 100mm, and flitch two (12) lower part is by stair series and shape of marking time setting 50mm thickness triangle wood Wedge (16), links together with flitch two (12), and flitch two (12) spacing is no more than 100mm, the wide b mono- that mark time at different levels to mark time It causes.
9. a kind of open-cut station construction stair formwork erecting structure according to claim 1, which is characterized in that the bed die (1) it is made for seven clamping plates (11), the mutual spacing of the steel pipe horizon bar (8) of steel pipe support (6) is 1800mm.
10. a kind of open-cut station construction stair formwork erecting structure according to claim 1, which is characterized in that the angle steel (17) size is 25 × 3mm, and angle steel (17) is fixed by screw (18) and step side form (3) and flitch two (12).
CN201821047785.8U 2018-07-04 2018-07-04 A kind of open-cut station construction stair formwork erecting structure Active CN208396295U (en)

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Application Number Priority Date Filing Date Title
CN201821047785.8U CN208396295U (en) 2018-07-04 2018-07-04 A kind of open-cut station construction stair formwork erecting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821047785.8U CN208396295U (en) 2018-07-04 2018-07-04 A kind of open-cut station construction stair formwork erecting structure

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113585737A (en) * 2021-07-14 2021-11-02 中铁十六局集团城市建设发展有限公司 Tool type formwork for one third of stair tread span

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113585737A (en) * 2021-07-14 2021-11-02 中铁十六局集团城市建设发展有限公司 Tool type formwork for one third of stair tread span

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