CN103774843A - Setting steel mould for one-step molded plastering-free cast-in-place stair and cast-in-place stair constructing method - Google Patents
Setting steel mould for one-step molded plastering-free cast-in-place stair and cast-in-place stair constructing method Download PDFInfo
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- CN103774843A CN103774843A CN201410047109.0A CN201410047109A CN103774843A CN 103774843 A CN103774843 A CN 103774843A CN 201410047109 A CN201410047109 A CN 201410047109A CN 103774843 A CN103774843 A CN 103774843A
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Abstract
The invention discloses a setting steel mould for a one-step molded plastering-free cast-in-place stair and a cast-in-place stair constructing method. The setting steel mould is characterized by comprising an upper platform (1), a stairstep (2) and a lower platform (3) which are connected in sequence, the setting steel mould takes the shape of a chair, that is, the upper platform (1) and the lower platform (3) are in parallel, the upper platform (1) warps downward relative to the lower platform (2), and the lower platform (3) upwarps relative to the stairstep (2). The setting steel mould for the one-step molded plastering-free cast-in-place stair and the cast-in-place stair constructing method, provided by the invention, have the advantages that the setting steel mould uses fewer materials, the mounting speed is high, the setting steel mould is conveniently turned over and used repeatedly, the mounting and the demounting operations are convenient, the positioning is accurate, the cast-in-place stair is accurate in size, the structure intensity is good, the molding rate is high, the rate of remade is low, and the quality problems of sand rising, cracking, hollowing and the like of the surfaces of the steps of a cast-in-place stair can be well solved.
Description
Technical field
The present invention relates to a kind of one-shot forming exempt to plaster cast-in-situ stair sizing punching block and build cast-in-situ stair method, relate in particular to exempt to plaster for cast-in-situ stair sizing punching block and take sizing punching block as the construction cast-in-situ stair method that basis forms of a kind of one-shot forming, belong to building structural element and technical field of building construction.
Background technology
Cast-in-situ stair is cast-in-situ steel reinforced concrete stair, is that cast in situs becomes an entirety with landing beam by staristep, platform, its good integrity, and shock resistance is strong.
The fabrication of tradition cast-in-situ stair template (punching block of shaping) is extremely complicated, and the template number consuming is the several times of other member, and template waste is larger, and very difficult assurance repeats turnover and uses; Stair template supports realization, and accurately location is very difficult, is difficult to ensure that physical dimension is accurate.While building cast-in-situ stair, reinforcing bar binding construction is difficult to location simultaneously, casting process is easily trampled and is caused displacement, be difficult to ensure structural strength, and stair are walking channels main in structure construction procedure, cast-in-situ stair collides unavoidably and destroys in construction, so mostly cast-in-situ stair needs thick and heavy plastering can make up constructional deficiency, and the intensity of plastering is difficult to ensure and tramples requirement, easily damages and comes off.
Summary of the invention
Technical problem to be solved by this invention is, one-shot forming exempt to plaster cast-in-situ stair sizing punching block and build cast-in-situ stair method is provided, sizing punching block materials are few, and installation rate is fast, is convenient to repeatedly have enough to meet the need use, installation, convenient disassembly and accurate positioning, cast-in-situ stair physical dimension is accurate, and structural strength is good, and ratio of briquetting is high, rework rate is low, can be good at solving the cast-in-situ stair quality problems such as surperficial dusting, cracking, hollowing of marking time.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
One-shot forming exempt to plaster cast-in-situ stair with sizing punching block, it is characterized in that: comprise connected successively upper mounting plate, staristep and lower platform, sizing punching block is " chair form ", be parallel with lower platform and the described upper mounting plate of described upper mounting plate with respect to described staristep to having a downwarp, described lower platform is tilted upward with respect to described staristep;
Described staristep comprises that staristep indulges support, several staristep stulls, several stepping cross supports and several baseboards; The vertical support of described staristep number is 2 and be arranged in parallel, described staristep stull connects the vertical support of 2 described staristeps, described stepping cross support is the angle steel being symmetricly set in the vertical support of 2 described staristeps, one side of described angle steel and the vertical support of described staristep welding mutually, the another side of described angle steel welds mutually with described baseboard, in the vertical support of described staristep, be also provided with suspension ring, the spacing of described stepping cross support is identical, and described baseboard and described upper mounting plate are perpendicular.
Described upper mounting plate comprises the vertical support of upper mounting plate, upper mounting plate stull and upper mounting plate fastening devices; The number of the vertical support of described upper mounting plate is 2 and is 120 ~ 150 ° with the vertical support of 2 described staristeps respectively and is connected, and described upper mounting plate stull connects the end of the vertical support of 2 described upper mounting plates, in described upper mounting plate stull, is provided with upper mounting plate fastening devices;
Described lower platform comprises the vertical support of lower platform, lower platform stull and lower platform fastening devices; The number of the vertical support of described lower platform is 2 and is 120 ~ 150 ° with the vertical support of 2 described staristeps respectively and is connected, and described lower platform stull connects the end of the vertical support of 2 described lower platforms, is provided with described lower platform fastening devices in described lower platform stull.
Described upper mounting plate fastening devices and lower platform fastening devices include short scaffold and fixing inserted link, described upper mounting plate fastening devices and lower platform fastening devices number are 2 and symmetrical, described short scaffold is the hollow section perpendicular with described upper mounting plate, the middle part of described hollow section is fixedly connected with described upper mounting plate stull or lower platform stull, in described hollow section, be provided with internal thread, described fixing inserted link continues rotation until insertion ground is at least fixed after 10cm after screwing in described short scaffold.
The number of described suspension ring is at least 4, the upper surface of the vertical support of symmetrical and described staristep.
Described baseboard is positioned at the below of the vertical support of described staristep, the length of described baseboard is greater than the length of described staristep stull, the vertical section height of described baseboard equals the height of cast-in-situ stair pedal, the bottom of described baseboard is provided with outside horizontal flanging, the width of described outside horizontal flanging is 25 ~ 35mm, and the material of described baseboard is that thickness is the steel plate of 5mm.
Described staristep indulges that the vertical support of support, staristep stull, upper mounting plate, upper mounting plate stull, lower platform are vertically supportted, lower platform stull is 10# channel-section steel; Described stepping cross support is that both sides width is 50mm, the angle steel that thickness is 3mm.
Adopt one-shot forming described in the claim 1-6 any one cast-in-situ stair sizing punching block of exempting to plaster to build a cast-in-situ stair method, it is characterized in that: comprise the following steps:
Step 1: according to architectural drawing, stair are turned over to sample, make sizing punching block;
Step 2: measure and snap the line by structure chart absolute altitude in stair job site;
Step 3: set up stair bracing frame; Install stair bed die; Colligation stair reinforcing bar;
Step 4: lift described sizing punching block to stair job site and fix, making baseboard and upper mounting plate perpendicular, by regulating upper mounting plate fastening devices and lower platform fastening devices to reach design elevation;
Step 5: install stair side form;
Step 6: the reinforcing of stair side form template and inspection are proofreaied and correct;
Step 7: build stair concrete, casting position is between adjacent described baseboard, building is highly until the soffit of the higher level's baseboard in adjacent described baseboard;
Step 8: after concreting completes, once receive in time face, after receipts face, concrete surface is mutually concordant with the soffit of sizing punching block baseboard;
Step 9: place pedal corner protector according to designing requirement;
Step 10: carry out secondary in concrete final set front stairs pedal surface and receive face, magma press polish;
Step 11: remove sizing punching block, use for upper strata stair.
In described step 11, also comprise release agent operation is cleared up and brushed to the sizing punching block after removing, use for upper strata stair.
Pedal corner protector in described step 10 comprises angle steel or round steel.
In step 2, upper mounting plate and lower platform construction are by structural elevation, and staristep absolute altitude is upwards carried 20mm, and half space beam side plate height needs consistent, uses spirit level leveling; While stock mould being installed in step 4, absolute altitude position must precise control, and in step 5, stair side form is fixing wants firmly; After concreting completes, in the time of initial set, place angle steel corner protector by row workman, topmost a step tilts to flat upper surface than the high 20mm of flat upper surface, and last concrete carries out thin plucking.
One-shot forming trowel free process, the size zero deflection of the punching block stair that first will guarantee to shape, riser plate adopts 5mm steel plate flanging, is welded on stepping cross support, and it is high that electric welder's level of skill is wanted; Stair template (comprising stair bracing frame, stair bed die, stair reinforcing bar and stair side form) install with reinforcing process in strict stair size, position and the absolute altitude controlled, as there is deviation, will cause part to cut even entirety and cut reform (sizing punching block is to be placed on stair template).
The stair of exempting from the to plaster important link of constructing is concrete pouring quality control, avoids on the one hand barbarous construction, causes template displacement; On the other hand, carry out and close a position and the work of receipts face, hold the time of placing angle steel corner protector, and carry out secondary and receive face, the surfacing, bright and clean of guaranteeing to mark time.
Strengthen maintenance and the finished product protection of stair, avoid stair to occur dusting, crack, pollution and damage phenomenon, by relatively adopting these sizing punching block stair to can be good at solving the quality problems such as stair step surface dusting, cracking, hollowing.
A kind of one-shot forming provided by the invention exempt to plaster cast-in-situ stair sizing punching block and build cast-in-situ stair method, on sizing punching block, be provided with upper mounting plate and lower platform and be provided with fastening devices above, guarantee not produce displacement after sizing punching block is installed to job site, structural strength is good, guarantee to build in strict accordance with size and the position of architectural drawing, ratio of briquetting is high, and repair rate is low; Connect baseboard and the vertical support of staristep by stepping cross support, stepping cross support is angle steel, makes the connected mode of the vertical support of baseboard and staristep firm, indeformable, unshift, and cast-in-situ stair forming, does not need to plaster; Sizing punching block materials are few, and installation rate is fast, is convenient to repeatedly have enough to meet the need use, installation, convenient disassembly and accurate positioning; In addition, cast-in-situ stair adopts the face of once receiving, places the techniques such as pedal corner protector, secondary receipts face, without plastering, and cast-in-situ stair stabilized structure, forming, can be good at solving the cast-in-situ stair quality problems such as surperficial dusting, cracking, hollowing of marking time.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the enlarged drawing of A part in Fig. 2.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Fig. 1 ~ 3, one-shot forming exempt to plaster cast-in-situ stair with sizing punching block, it is characterized in that: comprise connected successively upper mounting plate 1, staristep 2 and lower platform 3, sizing punching block is " chair form ", be parallel with the lower platform 3 and described upper mounting plate 1 of described upper mounting plate 1 with respect to described staristep 2 to having a downwarp, described lower platform 3 is tilted upward with respect to described staristep 2;
Described staristep 2 comprises the vertical support 21 of staristep, several staristep stulls 22, several stepping cross supports 23 and several baseboards 24; The vertical support of described staristep 21 numbers are 2 and be arranged in parallel, described staristep stull 22 connects the vertical support 21 of 2 described staristeps, described stepping cross support 23 is for being symmetricly set on the angle steel in the vertical support 21 of 2 described staristeps, one side of described angle steel and the vertical support 21 of described staristep welding mutually, the another side of described angle steel welds mutually with described baseboard 24, in the vertical support 21 of described staristep, be also provided with suspension ring 25, the spacing of described stepping cross support 23 is identical, and described baseboard 24 is perpendicular with described upper mounting plate 1.
Described upper mounting plate 1 comprises the vertical support 11 of upper mounting plate, upper mounting plate stull 12 and upper mounting plate fastening devices 13; The number of the vertical support 11 of described upper mounting plate is 2 and is 120 ° with the vertical support 21 of 2 described staristeps respectively and is connected, and described upper mounting plate stull 12 connects the end of the vertical support 11 of 2 described upper mounting plates, in described upper mounting plate stull 12, is provided with upper mounting plate fastening devices 13;
Described lower platform 3 comprises the vertical support 31 of lower platform, lower platform stull 32 and lower platform fastening devices 33; The number of the vertical support 31 of described lower platform is 2 and is 120 ° with the vertical support 21 of 2 described staristeps respectively and is connected, described lower platform stull 32 connects the end of the vertical support 31 of 2 described lower platforms, is provided with described lower platform fastening devices 33 in described lower platform stull 32.
Described upper mounting plate fastening devices 13 and lower platform fastening devices 33 include short scaffold and fixing inserted link, described upper mounting plate fastening devices 13 and lower platform fastening devices 33 numbers are 2 and symmetrical, described short scaffold is the hollow section perpendicular with described upper mounting plate 1, the middle part of described hollow section is fixedly connected with described upper mounting plate stull 12 or lower platform stull 32, in described hollow section, be provided with internal thread, described fixing inserted link continues rotation until insertion ground is at least fixed after 10cm after screwing in described short scaffold.
The number of described suspension ring 25 is at least 4, the upper surface of the vertical support 21 of symmetrical and described staristep.
Described baseboard 24 is positioned at the below of the vertical support 21 of described staristep, the length of described baseboard 24 is greater than the length of described staristep stull 22, the vertical section height of described baseboard 24 equals the height of cast-in-situ stair pedal, the bottom of described baseboard 24 is provided with outside horizontal flanging 241, the width of described outside horizontal flanging 241 is 25 ~ 35mm, and the material of described baseboard 24 is that thickness is the steel plate of 5mm.
The vertical support 21 of described staristep, staristep stull 22, the vertical support 11 of upper mounting plate, upper mounting plate stull 12, the vertical support 31 of lower platform, lower platform stull 32 are 10# channel-section steel; Described stepping cross support 23 is 50mm, the angle steel that thickness is 3mm for both sides width.
Adopt one-shot forming described in the claim 1-6 any one cast-in-situ stair sizing punching block of exempting to plaster to build a cast-in-situ stair method, it is characterized in that: comprise the following steps:
Step 1: according to architectural drawing, stair are turned over to sample, make sizing punching block;
Step 2: measure and snap the line by structure chart absolute altitude in stair job site;
Step 3: set up stair bracing frame; Install stair bed die; Colligation stair reinforcing bar;
Step 4: lift described sizing punching block to stair job site and fix, making baseboard 24 and upper mounting plate 1 perpendicular, by regulating upper mounting plate fastening devices 13 and lower platform fastening devices 33 to reach design elevation;
Step 5: install stair side form;
Step 6: the reinforcing of stair side form template and inspection are proofreaied and correct;
Step 7: build stair concrete, casting position is between adjacent described baseboard 24, building is highly until the soffit of the higher level's baseboard 24 in adjacent described baseboard 24;
Step 8: after concreting completes, once receive in time face, after receipts face, concrete surface is mutually concordant with the soffit of sizing punching block baseboard 24;
Step 9: place pedal corner protector according to designing requirement;
Step 10: carry out secondary in concrete final set front stairs pedal surface and receive face, magma press polish;
Step 11: remove sizing punching block, use for upper strata stair.
In described step 11, also comprise release agent operation is cleared up and brushed to the sizing punching block after removing, use for upper strata stair.
Pedal corner protector in described step 10 comprises angle steel or round steel.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
- One-shot forming exempt to plaster cast-in-situ stair with sizing punching block, it is characterized in that: comprise connected successively upper mounting plate (1), staristep (2) and lower platform (3), sizing punching block is " chair form ", be described upper mounting plate (1) with the parallel and described upper mounting plate of lower platform (3) (1) with respect to described staristep (2) to having a downwarp, described lower platform (3) is tilted upward with respect to described staristep (2);Described staristep (2) comprises the vertical support of staristep (21), several staristep stulls (22), several stepping cross supports (23) and several baseboards (24), the vertical support of described staristep (21) number is 2 and be arranged in parallel, described staristep stull (22) connects the vertical supports of 2 described staristeps (21), described stepping cross support (23) is for being symmetricly set on the angle steel in the vertical supports of 2 described staristeps (21), weld mutually with the vertical support of described staristep (21) on one side of described angle steel, the another side of described angle steel welds mutually with described baseboard (24), in the vertical support of described staristep (21), be also provided with suspension ring (25), the spacing of described stepping cross support (23) is identical, described baseboard (24) is perpendicular with described upper mounting plate (1).
- 2. the one-shot forming according to claim 1 cast-in-situ stair sizing punching block of exempting to plaster, is characterized in that: described upper mounting plate (1) comprises the vertical support of upper mounting plate (11), upper mounting plate stull (12) and upper mounting plate fastening devices (13); The number of the vertical support of described upper mounting plate (11) is 2 and is 120 ~ 150 ° with the vertical supports of 2 described staristeps (21) respectively and is connected, described upper mounting plate stull (12) connects the end of the vertical supports of 2 described upper mounting plates (11), is provided with upper mounting plate fastening devices (13) in described upper mounting plate stull (12);Described lower platform (3) comprises the vertical support of lower platform (31), lower platform stull (32) and lower platform fastening devices (33); The number of the vertical support of described lower platform (31) is 2 and is 120 ~ 150 ° with the vertical supports of 2 described staristeps (21) respectively and is connected, described lower platform stull (32) connects the end of the vertical supports of 2 described lower platforms (31), is provided with described lower platform fastening devices (33) in described lower platform stull (32).
- One-shot forming according to claim 2 exempt to plaster cast-in-situ stair with sizing punching block, it is characterized in that: described upper mounting plate fastening devices (13) and lower platform fastening devices (33) include short scaffold and fixing inserted link, described upper mounting plate fastening devices (13) and lower platform fastening devices (33) number are 2 and symmetrical, described short scaffold is the hollow section perpendicular with described upper mounting plate (1), the middle part of described hollow section is fixedly connected with described upper mounting plate stull (12) or lower platform stull (32), in described hollow section, be provided with internal thread, described fixing inserted link continues rotation until insertion ground is at least fixed after 10cm after screwing in described short scaffold.
- 4. the one-shot forming according to claim 1 cast-in-situ stair sizing punching block of exempting to plaster, is characterized in that: the number of described suspension ring (25) be at least 4, and symmetrical and described staristep is indulged and supportted the upper surface of (21).
- One-shot forming according to claim 1 exempt to plaster cast-in-situ stair with sizing punching block, it is characterized in that: described baseboard (24) is positioned at the below of the vertical support of described staristep (21), the length of described baseboard (24) is greater than the length of described staristep stull (22), the vertical section height of described baseboard (24) equals the height of cast-in-situ stair pedal, the bottom of described baseboard (24) is provided with outside horizontal flanging (241), the width of described outside horizontal flanging (241) is 25 ~ 35mm, the material of described baseboard (24) is that thickness is the steel plate of 5mm.
- 6. the one-shot forming according to claim 2 cast-in-situ stair sizing punching block of exempting to plaster, is characterized in that: the vertical support of described staristep (21), staristep stull (22), the vertical support of upper mounting plate (11), upper mounting plate stull (12), the vertical support of lower platform (31), lower platform stull (32) are 10# channel-section steel; Described stepping cross support (23) is 50mm, the angle steel that thickness is 3mm for both sides width.
- 7. adopt one-shot forming described in the claim 1-6 any one cast-in-situ stair sizing punching block of exempting to plaster to build a cast-in-situ stair method, it is characterized in that: comprise the following steps:Step 1: according to architectural drawing, stair are turned over to sample, make sizing punching block;Step 2: measure and snap the line by structure chart absolute altitude in stair job site;Step 3: set up stair bracing frame; Install stair bed die; Colligation stair reinforcing bar;Step 4: lift described sizing punching block to stair job site and fix, making baseboard (24) and upper mounting plate (1) perpendicular, by regulating upper mounting plate fastening devices (13) and lower platform fastening devices (33) to reach design elevation;Step 5: install stair side form;Step 6: the reinforcing of stair side form template and inspection are proofreaied and correct;Step 7: build stair concrete, casting position is between adjacent described baseboard (24), building is highly until the soffit of the higher level's baseboard (24) in adjacent described baseboard (24);Step 8: after concreting completes, once receive in time face, after receipts face, concrete surface is mutually concordant with the soffit of sizing punching block baseboard (24);Step 9: place pedal corner protector according to designing requirement;Step 10: carry out secondary in concrete final set front stairs pedal surface and receive face, magma press polish;Step 11: remove sizing punching block, use for upper strata stair.
- 8. construction cast-in-situ stair method according to claim 7, is characterized in that: in described step 11, also comprise release agent operation is cleared up and brushed to the sizing punching block after removing, use for upper strata stair.
- 9. construction cast-in-situ stair method according to claim 7, is characterized in that: the pedal corner protector in described step 10 comprises angle steel or round steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410047109.0A CN103774843A (en) | 2014-02-08 | 2014-02-08 | Setting steel mould for one-step molded plastering-free cast-in-place stair and cast-in-place stair constructing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410047109.0A CN103774843A (en) | 2014-02-08 | 2014-02-08 | Setting steel mould for one-step molded plastering-free cast-in-place stair and cast-in-place stair constructing method |
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| CN103774843A true CN103774843A (en) | 2014-05-07 |
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| CN201410047109.0A Pending CN103774843A (en) | 2014-02-08 | 2014-02-08 | Setting steel mould for one-step molded plastering-free cast-in-place stair and cast-in-place stair constructing method |
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| CN109680937A (en) * | 2017-10-18 | 2019-04-26 | 五冶集团上海有限公司 | Regularization steel stair is marked time construction method |
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Application publication date: 20140507 |