CN112302336A - Concrete pouring template system for large-slope roof and construction method thereof - Google Patents
Concrete pouring template system for large-slope roof and construction method thereof Download PDFInfo
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- CN112302336A CN112302336A CN202011235250.5A CN202011235250A CN112302336A CN 112302336 A CN112302336 A CN 112302336A CN 202011235250 A CN202011235250 A CN 202011235250A CN 112302336 A CN112302336 A CN 112302336A
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- 238000010276 construction Methods 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 71
- 239000011440 grout Substances 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000009415 formwork Methods 0.000 claims abstract 12
- 239000010410 layer Substances 0.000 claims description 72
- 239000002344 surface layer Substances 0.000 claims description 65
- 229910000831 Steel Inorganic materials 0.000 claims description 42
- 239000010959 steel Substances 0.000 claims description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000005266 casting Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007569 slipcasting Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
- E04G17/065—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning
- E04G17/0655—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning the element consisting of several parts
- E04G17/0657—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning the element consisting of several parts fully recoverable
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/06—Solidifying concrete, e.g. by application of vacuum before hardening
- E04G21/063—Solidifying concrete, e.g. by application of vacuum before hardening making use of vibrating or jolting tools
- E04G21/066—Solidifying concrete, e.g. by application of vacuum before hardening making use of vibrating or jolting tools acting upon the surface of the concrete, whether or not provided with parts penetrating the concrete
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- Engineering & Computer Science (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention relates to the field of building templates, in particular to a concrete pouring template system for a large-gradient roof and a construction method thereof. The utility model provides a heavy grade roof concrete placement template system, is including pouring chamber (1), characterized by: the grouting device comprises a bottom formwork (11) and a surface formwork (12), and is characterized by further comprising a counter-pull positioning device (3), a grouting opening (4), a grouting positioning device (5) and a grouting pipe (6), wherein the bottom formwork (11) and the surface formwork (12) are connected and fixed through the counter-pull positioning device (3); a grouting opening (4) is sequentially arranged in the pouring cavity (1), and two sides of the grouting opening (4) are respectively fixed by two grouting positioning devices (5); the grout outlet of the grout pipe (6) is connected with the grout inlet (4) through a grout hole on the edge sealing template (13) at the bottom. A construction method of a large-gradient roof concrete pouring template system is characterized by comprising the following steps: the method is implemented in sequence according to the following steps: firstly, building up; and secondly, pouring. The invention has convenient construction and high pouring quality.
Description
Technical Field
The invention relates to the field of building templates, in particular to a concrete pouring template system for a large-gradient roof and a construction method thereof.
Background
When the concrete of slope roofing is pour in the construction, when the slope roofing slope is little, concrete placement for preventing concrete gliding, need dispose the less concrete of slump as anti-sliding measure, and need to pour in different layers section when pouring, need wait promptly that upper segment concrete reaches initial set stage and vibrate again to pour next section concrete, technical intermittent type time is longer, very easily forms the construction cold joint, leads to the structure seepage universal, and the leak source is difficult to find. When the slope roofing is great (greater than 30 °), adopt the construction of current two-sided splint method, the concrete part can produce the honeycomb, and the concrete is difficult closely knit, and need open the casting trough belt on the panel, and the essence still is the segmentation construction, still has technical intermittence time.
Disclosure of Invention
The invention discloses a concrete pouring template system for a large-gradient roof and a construction method thereof, aiming at overcoming the defects of the prior art and providing a concrete construction method with convenient construction and high pouring quality.
The invention achieves the purpose by the following technical scheme:
a large-gradient roof concrete pouring template system comprises a pouring cavity, wherein the pouring cavity comprises a bottom layer template, a surface layer template and an edge sealing template, the bottom layer template and the surface layer template are oppositely and parallelly arranged, the side edges of the bottom layer template and the surface layer template are sequentially connected and sealed by the edge sealing template to form a sealed pouring cavity, the pouring cavity is obliquely erected on each scaffold by the bottom layer template and is used for concrete jacking pouring construction from bottom to top, grouting holes are sequentially arranged on the edge sealing template at the bottom,
the method is characterized in that: also comprises a counter-pulling positioning device, a grouting opening, a grouting positioning device and a grouting pipe,
the bottom layer template and the surface layer template are connected and fixed through the split positioning devices, each split positioning device is sequentially and evenly arranged along the length direction and the width direction of the bottom layer template, each split positioning device comprises two skids, a split screw, a water stop sheet, two inner nuts, four steel pipes, two cover plates and two outer nuts,
the outer side surfaces of the bottom layer template and the surface layer template are respectively stuck with a skid, the middle part of the opposite-pulling screw rod is provided with a water stop sheet, two inner nuts are both screwed on the opposite-pulling screw rod and are respectively arranged at the two sides of the water stop sheet,
the bottom end of the counter-pull screw rod sequentially penetrates through the bottom layer template and the skid attached on the bottom layer template, an inner nut at the bottom end of the counter-pull screw rod props against the inner side surface of the bottom layer template, two sides of the counter-pull screw rod attached on the outer side surface of the skid on the bottom layer template are respectively attached with a steel pipe, a cover plate is sleeved in from the bottom end of the counter-pull screw rod and covers two steel pipes at the bottom of the counter-pull screw rod, an outer nut is screwed in from the bottom end of the counter-pull screw rod and props against the cover plate,
the top end of the counter-pulling screw rod sequentially penetrates through the surface layer template and the skid attached to the surface layer template, an inner nut at the top end of the counter-pulling screw rod abuts against the inner side surface of the surface layer template, two sides of the counter-pulling screw rod attached to the outer side surface of the skid on the surface layer template are respectively attached with one steel pipe, one cover plate is sleeved in from the top end of the counter-pulling screw rod and covers two steel pipes at the top of the counter-pulling screw rod, and one outer nut is screwed in from the top end of the counter-pulling screw rod and abuts against the cover plate at the top of;
the cross section of the edge sealing template at the bottom is concave, the edge sealing template at the bottom is sleeved on the bottom layer template and the surface layer template by the notches,
the pouring cavity is internally and sequentially provided with grouting ports, each grouting port is respectively arranged on a grouting hole of the edge sealing template at the bottom, two sides of each grouting port are respectively fixed by two grouting positioning devices, each grouting positioning device comprises a grouting screw and two grouting nuts, the inner ends of the two grouting screws abut against the lower part of the outer side surface of each grouting port, the outer ends of the two grouting screws sequentially penetrate through the bottom template and the side edge of the lower part of the edge sealing template, one grouting nut is screwed in from the outer end of each grouting screw and abuts against the side edge of the lower part of the edge sealing template, the inner ends of the other two grouting screws abut against the upper part of the outer side surface of each grouting port, the outer ends of the other two grouting screws sequentially penetrate through the side edges of the upper parts of the surface layer template and the edge sealing template, and one grouting nut is screwed in from the outer end of;
the grouting pipe is connected with a grouting valve in series, and a grout outlet of the grouting pipe is connected with the grouting port through a grouting hole in the edge sealing template at the bottom.
Big gradient roof concrete placement template system, characterized by: the gradient of the pouring cavity is 30-60 degrees, two sides of the grouting opening are respectively covered and fixed with an inclined wedge block, the inclined plane of the inclined wedge block gradually opens backwards from the grout outlet of the grouting opening, and the inner end of each grouting screw rod is abutted against the inclined wedge block.
Big gradient roof concrete placement template system, characterized by:
the aperture of the grouting holes on the edge sealing template at the bottom is 80mm +/-10 mm, the thickness of the bottom layer template and the thickness of the surface layer template are not less than 18mm,
and a steel pad plate is lined between the grout outlet of the grout pipe and the grout hole on the edge sealing template at the bottom, through holes which are opposite to the grout outlet of the grout pipe are arranged on the steel pad plate, and the thickness of the steel pad plate is not less than 12 mm.
The construction method of the large-gradient roof concrete pouring template system is characterized by comprising the following steps of: the method is implemented in sequence according to the following steps:
firstly, building:
the bottom layer template and the surface layer template are oppositely and parallelly arranged, the side edges of the bottom layer template and the surface layer template are sequentially connected and sealed by the edge sealing templates to form a sealed pouring cavity, the pouring cavity is obliquely erected on each scaffold through the bottom layer template and is used for concrete jacking and pouring construction from bottom to top, and the edge sealing templates at the bottom are sequentially provided with grouting holes,
the bottom layer template and the surface layer template are connected and fixed through the split positioning devices, each split positioning device is sequentially and evenly arranged along the length direction and the width direction of the bottom layer template, each split positioning device comprises two skids, a split screw, a water stop sheet, two inner nuts, four steel pipes, two cover plates and two outer nuts,
the outer side surfaces of the bottom layer template and the surface layer template are respectively stuck with a skid, the middle part of the opposite-pulling screw rod is provided with a water stop sheet, two inner nuts are both screwed on the opposite-pulling screw rod and are respectively arranged at the two sides of the water stop sheet,
the bottom end of a counter-pull screw rod sequentially penetrates through a bottom layer template and a skid attached on the bottom layer template, an inner nut at the bottom end of the counter-pull screw rod is screwed to abut against the inner side surface of the bottom layer template, two sides of the counter-pull screw rod attached on the outer side surface of the skid attached on the bottom layer template are respectively attached with a steel pipe, a cover plate is sleeved in from the bottom end of the counter-pull screw rod and covers two steel pipes at the bottom of the counter-pull screw rod, an outer nut is screwed in from the bottom end of the counter-pull screw rod and abuts against the cover plate at the bottom,
sequentially penetrating the top end of the counter-pull screw through the surface layer template and the skid attached to the surface layer template, screwing an inner nut at the top end of the counter-pull screw to abut against the inner side surface of the surface layer template, respectively attaching a steel pipe to each of two sides of the counter-pull screw attached to the outer side surface of the skid attached to the surface layer template, sleeving a cover plate into the two steel pipes at the top of the counter-pull screw from the top end of the counter-pull screw and covering the two steel pipes at the top of the counter-pull screw, and screwing an outer nut into the cover plate at the top of the counter-pull screw from the top;
the cross section of the edge sealing template at the bottom is concave, the edge sealing template at the bottom is sleeved on the bottom layer template and the surface layer template by the notches,
the pouring cavity is internally and sequentially provided with grouting ports, each grouting port is respectively arranged on a grouting hole of the edge sealing template at the bottom, two sides of each grouting port are respectively fixed by two grouting positioning devices, each grouting positioning device comprises a grouting screw and two grouting nuts, the inner ends of the two grouting screws are abutted against the lower part of the outer side surface of each grouting port, the outer ends of the two grouting screws sequentially penetrate through the side edges of the lower parts of the bottom template and the edge sealing template, one grouting nut is screwed in the outer end of each grouting screw and abutted against the side edge of the lower part of the edge sealing template, the inner ends of the other two grouting screws are abutted against the upper part of the outer side surface of each grouting port, the outer ends of the other two grouting screws sequentially penetrate through the side edges of the upper parts of the surface template and the edge sealing template, and one grouting nut is screwed in the outer end of each grouting screw;
a grouting valve is connected in series on the grouting pipe, and a grout outlet of the grouting pipe is connected with the grouting port through a grouting hole in the edge sealing template at the bottom;
casting:
and (3) opening a grouting valve, injecting concrete into the pouring cavity through a grouting pipe through a grouting opening, gradually jacking the concrete in the pouring cavity from bottom to top, ensuring the compactness of concrete pouring by utilizing the pressure of the concrete during jacking from bottom to top, and closing the grouting valve to avoid the concrete backflow when the concrete pouring is intermittent or stopped.
The construction method of the large-gradient roof concrete pouring template system is characterized by comprising the following steps of: the method is implemented in sequence according to the following steps:
firstly, the gradient of a pouring cavity is 30-60 degrees, two sides of a grouting opening are respectively covered and fixed with an inclined wedge block, the inclined plane of the inclined wedge block gradually expands backwards from a grout outlet of the grouting opening, and the inner end of each grouting screw abuts against the inclined wedge block;
the aperture of a grouting hole in the edge sealing template at the bottom is 80mm +/-10 mm, and the thickness of the bottom layer template and the thickness of the surface layer template are not less than 18 mm;
and secondly, a flat plate vibrator is arranged on the edge sealing template at the bottom, and the flat plate vibrator is started to vibrate concrete during pouring, so that the pouring compactness is further improved.
The invention has the following beneficial effects: the invention overcomes the defects in the construction of the prior art, ensures the compactness of concrete by utilizing the pressure during the jacking of the concrete, realizes the waterproof function of a roof structure with high quality, avoids the leakage risk of the later roof, simultaneously realizes continuous and quick-mature pouring, avoids technical intermittence, can accurately control the thickness of the roof plate, and improves the construction quality.
Drawings
Figure 1 is a schematic view of the structure of the present invention,
FIG. 2 is a schematic view showing the structure of the invention in which the pair of water stop plates, the inner nut and the outer nut are sequentially sleeved on the counter-pulling screw,
FIG. 3 is a schematic view showing the connection of a pouring cavity, a counter-pull positioning device, a grouting opening, a grouting positioning device and a grouting pipe in the invention.
Detailed Description
The invention is further illustrated by the following specific examples.
Example 1
The utility model provides a big slope roof concrete placement template system, is including pouring chamber 1, to drawing positioner 3, slip casting mouth 4, slip casting positioner 5 and slip casting pipe 6, as shown in fig. 1-3, concrete structure is:
the pouring cavity 1 comprises a bottom layer template 11, a surface layer template 12 and an edge sealing template 13, the bottom layer template 11 and the surface layer template 12 are arranged oppositely and parallelly, the side edges of the bottom layer template 11 and the surface layer template 12 are sequentially connected and sealed by the edge sealing template 13 to form a sealed pouring cavity 1, the pouring cavity 1 is obliquely erected on each scaffold 2 through the bottom layer template 11, the pouring cavity 1 is used for concrete jacking pouring construction from bottom to top, and grouting holes are sequentially arranged on the edge sealing template 13 at the bottom;
the bottom layer template 11 and the surface layer template 12 are connected and fixed through the opposite-pulling positioning devices 3, each opposite-pulling positioning device 3 is evenly arranged along the length direction and the width direction of the bottom layer template 11 in sequence, each opposite-pulling positioning device 3 comprises two skids 31, an opposite-pulling screw 32, a water stop sheet 33, two inner nuts 34, four steel pipes 35, two cover plates 36 and two outer nuts 37,
the outer side surfaces of the bottom layer template 11 and the surface layer template 12 are respectively stuck with a skid 31, the middle part of the counter-pulling screw rod 32 is provided with a water stop sheet 33, two inner nuts 34 are both screwed on the counter-pulling screw rod 32 and are respectively arranged at the two sides of the water stop sheet 33,
the bottom end of the counter-pull screw 32 sequentially passes through the bottom layer template 11 and the skid 31 attached on the bottom layer template 11, the inner nut 34 at the bottom end of the counter-pull screw 32 is propped against the inner side surface of the bottom layer template 11, two sides of the counter-pull screw 32 attached on the outer side surface of the skid 31 on the bottom layer template 11 are respectively attached with a steel pipe 35, a cover plate 36 is inserted from the bottom end of the counter-pull screw 32 and covers two steel pipes 35 at the bottom of the counter-pull screw 32, an outer nut 37 is screwed in from the bottom end of the counter-pull screw 32 and propped against the cover plate 36 at the bottom of the counter-,
the top end of the counter-pull screw 32 sequentially penetrates through the surface layer template 12 and the skid 31 attached to the surface layer template 12, an inner nut 34 at the top end of the counter-pull screw 32 abuts against the inner side surface of the surface layer template 12, two sides of the counter-pull screw 32 attached to the outer side surface of the skid 31 on the surface layer template 12 are respectively attached with a steel pipe 35, a cover plate 36 is sleeved in from the top end of the counter-pull screw 32 and covers the two steel pipes 35 at the top of the counter-pull screw 32, and an outer nut 37 is screwed in from the top end of the counter-pull screw 32 and abuts against the cover plate 36 at the top of the counter-pull screw 32;
the cross section of the edge sealing template 13 at the bottom is concave, the edge sealing template 13 at the bottom is sleeved on the bottom layer template 11 and the surface layer template 12 by the notches,
the pouring cavity 1 is internally provided with grouting ports 4 in sequence, each grouting port 4 is arranged on a grouting hole of the edge sealing template 13 at the bottom, two sides of each grouting port 4 are fixed by two grouting positioning devices 5 respectively, each grouting positioning device 5 comprises a grouting screw 51 and two grouting nuts 52, the inner ends of the two grouting screws 51 abut against the lower part of the outer side surface of each grouting port 4, the outer ends of the two grouting screws 51 penetrate through the bottom template 11 and the side edge of the lower part of the edge sealing template 13 in sequence, one grouting nut 52 is screwed in from the outer end of each grouting screw 51, the grouting nut 52 abuts against the side edge of the lower part of the edge sealing template 13, the inner ends of the other two grouting screws 51 abut against the upper part of the outer side surface of each grouting port 4, the outer ends of the other grouting screws penetrate through the side edges of the surface layer template 12 and the upper part of the edge sealing template 13 in sequence, and one grouting nut 52 is screwed in from the outer end of;
the grouting pipe 6 is connected with a grouting valve 61 in series, and the grout outlet of the grouting pipe 6 is connected with the grouting port 4 through a grouting hole in the edge sealing template 13 at the bottom.
The gradient of the pouring cavity 1 is 30-60 degrees, and the gradient is 45 degrees in the embodiment; in this embodiment: two sides of the grouting port 4 are respectively covered and fixed with an inclined wedge block 41, the inclined plane of the inclined wedge block 41 gradually opens backwards from the grout outlet of the grouting port 4, and the inner end of each grouting screw 51 is abutted against the inclined wedge block 41;
in this embodiment: the aperture of a grouting hole in the edge sealing template 13 at the bottom is 80mm +/-10 mm, and the thickness of the bottom layer template 11 and the thickness of the surface layer template 12 are not less than 18 mm;
a steel backing plate 62 is lined between the grout outlet of the grout pipe 6 and the grout hole on the edge sealing template 13 at the bottom, through holes which are opposite to the grout outlet of the grout pipe 6 are arranged on the steel backing plate 62, and the thickness of the steel backing plate 62 is not less than 12 mm.
In the construction of this embodiment, the following steps are performed in sequence:
firstly, building:
the thickness of the bottom layer template 11 and the surface layer template 12 is not less than 18mm, the bottom layer template 11 and the surface layer template 12 are oppositely and parallelly arranged, the side edges of the bottom layer template 11 and the surface layer template 12 are sequentially connected and sealed by the edge sealing templates 13 to form a sealed pouring cavity 1, the pouring cavity 1 is obliquely erected on each scaffold 2 erected by the disc buckle type steel pipes through the bottom layer template 11, the gradient of the pouring cavity 1 is 30-60 degrees, the slope is 45 degrees in the embodiment, the pouring cavity 1 is used for concrete jacking pouring construction from bottom to top, grouting holes are sequentially arranged on the edge sealing template 13 at the bottom, and the aperture of the grouting holes on the edge sealing template 13 at the bottom is 80mm +/-10 mm,
the bottom layer template 11 and the surface layer template 12 are connected and fixed through the opposite-pulling positioning devices 3, each opposite-pulling positioning device 3 is evenly arranged along the length direction and the width direction of the bottom layer template 11 in sequence, each opposite-pulling positioning device 3 comprises two skids 31, an opposite-pulling screw 32, a water stop sheet 33, two inner nuts 34, four steel pipes 35, two cover plates 36 and two outer nuts 37,
the outer side surfaces of the bottom layer template 11 and the surface layer template 12 are respectively stuck with a skid 31, the middle part of the counter-pulling screw rod 32 is provided with a water stop sheet 33, two inner nuts 34 are both screwed on the counter-pulling screw rod 32 and are respectively arranged at the two sides of the water stop sheet 33,
the bottom end of a counter-pull screw 32 sequentially penetrates through a bottom layer template 11 and a skid 31 attached on the bottom layer template 11, an inner nut 34 at the bottom end of the counter-pull screw 32 is screwed to abut against the inner side surface of the bottom layer template 11, two sides of the counter-pull screw 32 attached on the outer side surface of the skid 31 on the bottom layer template 11 are respectively attached with a steel pipe 35, a cover plate 36 is sleeved in and covers two steel pipes 35 at the bottom of the counter-pull screw 32 from the bottom end of the counter-pull screw 32, an outer nut 37 is screwed in and abuts against the cover plate 36 at the bottom of the counter-pull screw 32 from the bottom end of the counter-pull screw 32,
sequentially penetrating the top ends of counter-pull screws 32 through a surface layer template 12 and a skid 31 attached to the surface layer template 12, screwing inner nuts 34 at the top ends of the counter-pull screws 32 to abut against the inner side surface of the surface layer template 12, respectively attaching a steel pipe 35 to each of two sides of the counter-pull screws 32 attached to the outer side surface of the skid 31 on the surface layer template 12, sleeving a cover plate 36 from the top ends of the counter-pull screws 32 and covering two steel pipes 35 at the tops of the counter-pull screws 32, and screwing an outer nut 37 from the top ends of the counter-pull screws 32 into and abutting against the cover plate 36 at the tops of the counter-pull screws 32;
the cross section of the edge sealing template 13 at the bottom is concave, the edge sealing template 13 at the bottom is sleeved on the bottom layer template 11 and the surface layer template 12 by the notches,
the pouring cavity 1 is internally provided with a grouting port 4 in sequence, two sides of the grouting port 4 are respectively attached and fixed with an inclined wedge block 41, the inclined plane of the inclined wedge block 41 gradually opens backwards from a grout outlet of the grouting port 4, each grouting port 4 is respectively arranged on a grouting hole of the edge sealing template 13 at the bottom, two sides of the grouting port 4 are respectively fixed by two grouting positioning devices 5, each grouting positioning device 5 comprises a grouting screw 51 and two grouting nuts 52, the inner ends of the two grouting screws 51 are abutted against the inclined wedge block 41 at the lower part of the outer side surface of the grouting port 4, the outer ends of the two grouting screws 51 sequentially penetrate through the bottom template 11 and the side edge at the lower part of the edge sealing template 13, one grouting nut 52 is screwed from the outer end of each grouting screw 51 and is abutted against the side edge at the lower part of the edge sealing template 13, the other two grouting screws 51 are abutted against the inclined wedge blocks 41 at the upper part of the outer side surface of the grouting port 4 and the outer ends sequentially penetrate through the surface layer template 12 and, screwing a grouting nut 52 from the outer end of each grouting screw 51 and enabling the grouting nut 52 to abut against the side edge of the upper part of the edge sealing template 13;
a grouting valve 61 is connected in series on the grouting pipe 6, and a grouting outlet of the grouting pipe 6 is connected with the grouting port 4 through a grouting hole on the edge sealing template 13 at the bottom;
casting:
the grouting valve 61 is opened, concrete is injected into the pouring cavity 1 through the grouting pipe 6 through the grouting port 4, the concrete is gradually jacked up in the pouring cavity 1 from bottom to top, the compactness of the concrete pouring is guaranteed by utilizing the pressure of the concrete during jacking from bottom to top, the flat plate vibrator is arranged on the edge sealing template 13 at the bottom, the flat plate vibrator is opened during pouring to vibrate the concrete, the compactness of the pouring is further improved, and the grouting valve 61 is closed to avoid the concrete backflow during the concrete pouring interval or suspension.
Claims (5)
1. A large-gradient roof concrete pouring template system comprises a pouring cavity (1), wherein the pouring cavity (1) comprises a bottom template (11), a surface template (12) and an edge sealing template (13), the bottom template (11) and the surface template (12) are arranged oppositely and parallelly, the side edges of the bottom template (11) and the surface template (12) are sequentially connected and sealed by the edge sealing template (13) to form a sealed pouring cavity (1), the pouring cavity (1) is obliquely erected on each scaffold (2) through the bottom template (11), grouting holes are sequentially formed in the edge sealing template (13) at the bottom,
the method is characterized in that: also comprises a counter-pulling positioning device (3), a grouting opening (4), a grouting positioning device (5) and a grouting pipe (6),
the bottom layer template (11) and the surface layer template (12) are connected and fixed through the split positioning devices (3), each split positioning device (3) is sequentially and evenly arranged along the length direction and the width direction of the bottom layer template (11), each split positioning device (3) comprises two skids (31), a split screw (32), a water stop sheet (33), two inner nuts (34), four steel pipes (35), two cover plates (36) and two outer nuts (37),
the outer side surfaces of the bottom layer template (11) and the surface layer template (12) are respectively pasted with a skid (31), the middle part of the counter-pull screw rod (32) is provided with a water stop sheet (33), two inner nuts (34) are screwed on the counter-pull screw rod (32) and are respectively arranged at the two sides of the water stop sheet (33),
the bottom end of a counter-pull screw rod (32) sequentially penetrates through a bottom layer template (11) and a skid (31) attached to the bottom layer template (11), an inner nut (34) at the bottom end of the counter-pull screw rod (32) abuts against the inner side surface of the bottom layer template (11), two sides of the counter-pull screw rod (32) attached to the outer side surface of the skid (31) on the bottom layer template (11) are respectively attached with a steel pipe (35), a cover plate (36) is sleeved in from the bottom end of the counter-pull screw rod (32) and covers the two steel pipes (35) at the bottom of the counter-pull screw rod (32), an outer nut (37) is screwed in from the bottom end of the counter-pull screw rod (32) and abuts against the cover plate (36) at the bottom of,
the top end of a counter-pull screw rod (32) sequentially penetrates through a surface layer template (12) and a skid (31) attached to the surface layer template (12), an inner nut (34) at the top end of the counter-pull screw rod (32) abuts against the inner side surface of the surface layer template (12), two sides of the counter-pull screw rod (32) attached to the outer side surface of the skid (31) on the surface layer template (12) are respectively attached with a steel pipe (35), a cover plate (36) is sleeved in from the top end of the counter-pull screw rod (32) and covers the two steel pipes (35) at the top of the counter-pull screw rod (32), and an outer nut (37) is screwed in from the top end of the counter-pull screw rod (32) and abuts against the cover plate (36) at the top of the;
the cross section of the edge sealing template (13) at the bottom is concave, the edge sealing template (13) at the bottom is sleeved on the bottom layer template (11) and the surface layer template (12) by the notch,
grouting ports (4) are sequentially arranged in the pouring cavity (1), each grouting port (4) is respectively arranged on a grouting hole of the edge sealing template (13) at the bottom, two sides of each grouting port (4) are respectively fixed by two grouting positioning devices (5), each grouting positioning device (5) comprises a grouting screw (51) and two grouting nuts (52), the inner ends of the two grouting screws (51) support against the lower part of the outer side surface of each grouting port (4), the outer ends of the two grouting screws sequentially penetrate through the bottom template (11) and the side edge of the lower part of the edge sealing template (13), one grouting nut (52) is screwed into the outer end of each grouting screw (51) to enable each grouting nut (52) to support against the side edge of the lower part of the edge sealing template (13), the inner ends of the other two grouting screws (51) support against the upper part of the outer side surface of each grouting port (4), and the outer ends of the two grouting screws sequentially penetrate through the side edges of the upper parts of the surface layer template (, a grouting nut (52) is screwed in from the outer end of each grouting screw rod (51) respectively, and the grouting nuts (52) abut against the side edge of the upper part of the edge sealing template (13);
a grouting valve (61) is connected in series on the grouting pipe (6), and a grouting outlet of the grouting pipe (6) is connected with the grouting port (4) through a grouting hole on the edge sealing template (13) at the bottom.
2. The large-gradient roof concrete pouring template system as claimed in claim 1, wherein: the gradient of the pouring cavity (1) is 30-60 degrees, two sides of the grouting opening (4) are respectively covered and fixed with an inclined wedge block (41), the inclined plane of the inclined wedge block (41) gradually opens backwards from the grout outlet of the grouting opening (4), and the inner end of each grouting screw rod (51) is abutted against the inclined wedge block (41).
3. The large-gradient roof concrete pouring template system as claimed in claim 2, wherein:
the aperture of the grouting holes on the edge sealing template (13) at the bottom is 80mm +/-10 mm, the thickness of the bottom layer template (11) and the thickness of the surface layer template (12) are not less than 18mm,
a steel base plate (62) is lined between the grout outlet of the grout pipe (6) and the grout hole on the edge sealing template (13) at the bottom, through holes which are opposite to the grout outlet of the grout pipe (6) are arranged on the steel base plate (62), and the thickness of the steel base plate (62) is not less than 12 mm.
4. The construction method of the concrete pouring formwork system for the large-gradient roof as claimed in any one of claims 1 to 3, wherein: the method is implemented in sequence according to the following steps:
firstly, building:
the bottom layer formwork (11) and the surface layer formwork (12) are oppositely and parallelly arranged, the side edges of the bottom layer formwork (11) and the surface layer formwork (12) are sequentially connected and sealed by the edge sealing formwork (13) to form a sealed pouring cavity (1), the pouring cavity (1) is obliquely erected on each scaffold (2) through the bottom layer formwork (11), grouting holes are sequentially arranged on the edge sealing formwork (13) positioned at the bottom,
the bottom layer template (11) and the surface layer template (12) are connected and fixed through the split positioning devices (3), each split positioning device (3) is sequentially and evenly arranged along the length direction and the width direction of the bottom layer template (11), each split positioning device (3) comprises two skids (31), a split screw (32), a water stop sheet (33), two inner nuts (34), four steel pipes (35), two cover plates (36) and two outer nuts (37),
the outer side surfaces of the bottom layer template (11) and the surface layer template (12) are respectively pasted with a skid (31), the middle part of the counter-pull screw rod (32) is provided with a water stop sheet (33), two inner nuts (34) are screwed on the counter-pull screw rod (32) and are respectively arranged at the two sides of the water stop sheet (33),
sequentially penetrating the bottom end of a counter-pull screw rod (32) through a bottom layer template (11) and a skid (31) attached to the bottom layer template (11), screwing an inner nut (34) at the bottom end of the counter-pull screw rod (32) to abut against the inner side surface of the bottom layer template (11), respectively attaching a steel pipe (35) to two sides of the counter-pull screw rod (32) attached to the outer side surface of the skid (31) on the bottom layer template (11), sleeving a cover plate (36) into the two steel pipes (35) covering the bottom of the counter-pull screw rod (32) from the bottom end of the counter-pull screw rod (32), screwing an outer nut (37) into the cover plate (36) at the bottom of the counter-pull screw rod (32) from the bottom end of the counter-pull screw rod (32) and abutting,
sequentially enabling the top end of a counter-pull screw rod (32) to penetrate through a surface layer template (12) and a skid (31) attached to the surface layer template (12), screwing an inner nut (34) at the top end of the counter-pull screw rod (32) to abut against the inner side surface of the surface layer template (12), respectively attaching a steel pipe (35) to two sides of the counter-pull screw rod (32) attached to the outer side surface of the skid (31) on the surface layer template (12), sleeving a cover plate (36) into the two steel pipes (35) at the top of the counter-pull screw rod (32) and covering the two steel pipes (35) at the top of the counter-pull screw rod (32), and screwing an outer nut (37) into the cover plate (36) at the top of the counter-pull screw rod (32) from the top end of the counter;
the cross section of the edge sealing template (13) at the bottom is concave, the edge sealing template (13) at the bottom is sleeved on the bottom layer template (11) and the surface layer template (12) by the notch,
grouting ports (4) are sequentially arranged in the pouring cavity (1), each grouting port (4) is respectively arranged on a grouting hole of the edge sealing template (13) at the bottom, two sides of each grouting port (4) are respectively fixed by two grouting positioning devices (5), each grouting positioning device (5) comprises a grouting screw (51) and two grouting nuts (52), the inner ends of the two grouting screws (51) are abutted against the lower part of the outer side surface of each grouting port (4), the outer ends of the two grouting screws sequentially penetrate through the bottom template (11) and the side edge of the lower part of the edge sealing template (13), one grouting nut (52) is screwed in each outer end of each grouting screw (51) to enable each grouting nut (52) to abut against the side edge of the lower part of the edge sealing template (13), the inner ends of the other two grouting screws (51) are abutted against the upper part of the outer side surface of each grouting port (4) and sequentially penetrate through the side edges of the upper parts of the surface layer template (12) and the edge sealing template, a grouting nut (52) is screwed in from the outer end of each grouting screw rod (51) respectively, and the grouting nuts (52) abut against the side edge of the upper part of the edge sealing template (13);
a grouting valve (61) is connected in series on the grouting pipe (6), and a grouting outlet of the grouting pipe (6) is connected with the grouting opening (4) through a grouting hole on the edge sealing template (13) at the bottom;
casting:
and (3) opening a grouting valve (61), injecting concrete into the pouring cavity (1) through a grouting pipe (6) through a grouting opening (4), gradually jacking the concrete in the pouring cavity (1) from bottom to top, ensuring the pouring compactness of the concrete by utilizing the pressure of the concrete during jacking from bottom to top, and closing the grouting valve (61) to avoid the concrete from flowing backwards when the concrete is poured intermittently or is stopped.
5. The construction method of the large-gradient roof concrete pouring template system as claimed in claim 4, characterized in that: the method is implemented in sequence according to the following steps:
firstly, the gradient of a pouring cavity (1) is 30-60 degrees, two sides of a grouting opening (4) are respectively covered and fixed with an inclined wedge block (41), the inclined plane of the inclined wedge block (41) gradually opens backwards from the grouting opening of the grouting opening (4), and the inner end of each grouting screw rod (51) is propped against the inclined wedge block (41);
the aperture of a grouting hole in the edge sealing template (13) at the bottom is 80mm +/-10 mm, and the thicknesses of the bottom layer template (11) and the surface layer template (12) are not less than 18 mm;
and secondly, a flat plate vibrator is arranged on the edge sealing template (13) at the bottom, and the flat plate vibrator is started to vibrate the concrete during pouring.
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| CN112302336B (en) | 2024-01-16 |
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