CN116876675A - Large-volume ultra-long concrete structure expansion reinforcing band and pouring construction method - Google Patents
Large-volume ultra-long concrete structure expansion reinforcing band and pouring construction method Download PDFInfo
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- CN116876675A CN116876675A CN202310895379.6A CN202310895379A CN116876675A CN 116876675 A CN116876675 A CN 116876675A CN 202310895379 A CN202310895379 A CN 202310895379A CN 116876675 A CN116876675 A CN 116876675A
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- 239000004567 concrete Substances 0.000 title claims abstract description 153
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 80
- 238000010276 construction Methods 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 70
- 239000010959 steel Substances 0.000 claims abstract description 70
- 230000000903 blocking effect Effects 0.000 claims abstract description 26
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 16
- 238000005266 casting Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- 230000002787 reinforcement Effects 0.000 claims description 11
- 239000004570 mortar (masonry) Substances 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 238000005056 compaction Methods 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims description 6
- 239000002023 wood Substances 0.000 claims description 5
- 230000007547 defect Effects 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 5
- 230000002349 favourable effect Effects 0.000 abstract description 16
- 229910000746 Structural steel Inorganic materials 0.000 abstract description 4
- 239000004575 stone Substances 0.000 abstract description 4
- 230000035699 permeability Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6801—Fillings therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6806—Waterstops
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6807—Expansion elements for parts cast in situ
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to the technical field of post-cast strip construction, in particular to an expansion reinforcing strip of a large-volume ultra-long concrete structure and a pouring construction method. The invention comprises a water stop steel plate, a structural steel bar net and concrete, wherein the structural steel bar net is arranged in the concrete, the structural steel bar net is connected with steel bar cages of the structural plates at two sides, the concrete is tightly attached to the structural plates at two sides, the water stop steel plate is arranged between the concrete and the structural plates at two sides, rubber water stops are respectively arranged at the upper end and the lower end of a contact joint between the concrete and the structural plates, and stubble blocking nets are arranged at the joint between the concrete and the structural plates. The rubber water stop is favorable for blocking water permeability of the joint of the concrete, the water stop capability of the expansion reinforcing belt water stop structure is further improved by effectively matching with the water stop steel plate, the rubber water stop is embedded into the concrete and the structural plate, the loss of water stop function caused by warping is reduced, the stubble blocking net is used for blocking the passage of stones in the concrete, and the connection stability between the expansion reinforcing belt and the structural plate is optimized.
Description
Technical Field
The invention relates to the technical field of post-cast strip construction, in particular to an expansion reinforcing strip of a large-volume ultra-long concrete structure and a pouring construction method.
Background
The post-cast strip is a concrete strip which is reserved at corresponding positions of a foundation slab, a wall and a beam according to design or construction specification requirements in order to prevent harmful cracks of a reinforced concrete structure caused by uneven self shrinkage or uneven settlement in building construction, the post-cast strip temporarily divides the structure into a plurality of parts, the post-cast strip is internally shrunk by a member, and is used for casting and tamping the construction joint concrete after a plurality of times, the structure is connected into an integral zone, when the casting time of the post-cast strip is low, casting cement or concrete doped with a small amount of aluminum powder in cement can be used, the strength grade of the concrete is one level higher than that of the member, the cracks are prevented from occurring between new and old concrete, weak parts are formed, and the parts provided with the post-cast strip also consider consumption factors of different measures such as templates.
The construction of a large-volume ultra-long concrete structure is carried out, and two common concrete pouring methods are as follows: the method for jumping the bin and the expansion reinforcing belt needs to avoid the violent temperature difference and drying effect of the early stage of concrete construction, the interval time between two adjacent sections cannot be less than 7 days, and if the construction period pressure is large, the method for jumping the bin cannot meet the requirements.
The expansion reinforcing band is through pouring compensation shrinkage concrete at the post-cast band position that the structure was preset, reduce post-cast band or the technical measure of construction joint, the post-cast band both sides that presets in the expansion reinforcing band now are mostly ordinary stagnant water steel sheet, adopt welded mode to fix in the board, this kind of mode can't eradicate the stress that compensation shrinkage concrete pouring produced, the steel sheet welding is fragile steel sheet in addition, there is the hidden danger of leaking, traditional expansion reinforcing band reinforcing bar position does not have effective control measure in addition, the joint position is because of dead weight reinforcing bar easily produces deflection, structural safety hidden danger is left in the reinforcing bar deviation in the follow-up pouring process.
Disclosure of Invention
The invention provides a large-volume ultra-long concrete structure expansion reinforcing belt and a pouring construction method, which aim to solve the problems of imperfect water stopping function and unreasonable construction mode of the expansion reinforcing belt.
On one hand, the invention provides a large-volume ultra-long concrete structure expansion reinforcing belt which adopts the following technical scheme:
the utility model provides a bulky overlength concrete structure inflation strengthening band, includes stagnant water steel sheet, structure reinforcing bar net and concrete, the structure reinforcing bar net sets up inside the concrete, structure reinforcing bar net and the individual steel reinforcement cage interconnect of both sides structural slab, both sides structural slab is hugged closely to the concrete, be provided with stagnant water steel sheet in the middle of concrete and the both sides structural slab, the one portion of stagnant water steel sheet is pegged graft in the concrete, and another portion is pegged graft in the structural slab, both ends are provided with rubber waterstop respectively about concrete and the structural slab contact joint, rubber waterstop embedding concrete and structural slab are intraductal, concrete and structural slab seam crossing are provided with and block the stubble net.
Through adopting above-mentioned technical scheme, the rubber waterstop is favorable to blockking the permeating water of concrete seam crossing, and effective cooperation stagnant water steel sheet further improves the stagnant water ability of inflation reinforcing band stagnant water structure, and in rubber waterstop embedded concrete and the structural slab, the structural stability of rubber waterstop improves, reduces the loss manger plate function that warp brought, blocks the stubble net and is used for blocking the stone in the concrete and passes through, optimizes the connection stability between inflation reinforcing band and the structural slab.
Preferably, the structural reinforcement net at the contact position with the rubber water stop is sleeved with a limiting ring, the rubber water stop is fixedly connected with the limiting ring, and one side of the rubber water stop, which is contacted with the concrete and the structural plate, is in a zigzag shape.
Through adopting above-mentioned technical scheme, the spacing ring is used for fixed rubber waterstop on the structure reinforcing bar net to thereby prevent that the too big structural hidden danger of leaving of reinforcing bar protective layer from appearing in reinforcing bar amount of deflection, improve the firm degree of rubber waterstop, reduce and drop and warp, the sawtooth form rubber waterstop can more effectively combine with concrete structure, reduces to drop.
Preferably, the water stop steel plate is wrapped with a rubber layer, and the concrete is micro-expansion concrete.
Through adopting above-mentioned technical scheme, the elasticity of rubber layer is favorable to the water-stop steel sheet to combine with concrete structure each other, further improves the stagnant water ability of water-stop steel sheet, and micro-expansion concrete is favorable to improving post-cast strip and structural slab's joint strength, adaptation structural slab is to post-cast strip's inflation and extrusion force.
Preferably, the stubble blocking net is connected with the rubber water stop belt and the water stop steel plate through a first bolt and a second bolt respectively, and the second bolt is embedded into the rubber layer.
By adopting the technical scheme, the stubble blocking net is connected with the glue water stop belt and the water stop steel plate, so that the installation stability of the stubble blocking net is improved, and the lateral deflection caused by extrusion in the pouring process is reduced.
On the other hand, the pouring construction method of the expansion reinforcing belt of the large-volume ultra-long concrete structure provided by the invention adopts the following technical scheme:
a pouring construction method of a large-volume ultra-long concrete structure expansion reinforcing belt comprises the following construction steps:
positioning the position of the paying-off expansion reinforcing belt according to the design requirement, measuring the size of the reinforcing belt, rechecking whether the design requirement is met, and estimating the required concrete square quantity;
binding a structural reinforcing steel bar net in the expansion reinforcing band, binding and connecting the plate bars with the plate bars of the structural plates at two sides, and binding vertical short reinforcing steel bars;
a stubble blocking net is hung on vertical short steel bars bound on two sides of the expansion reinforcing band;
setting up a pouring template, paving a layer of mortar at the joint of the pouring template and the structural plate, and checking the compaction condition of the joint;
integrally pouring an expansion reinforcing belt, after pouring, vibrating and compacting by using an inserted vibrator, and then vibrating and flattening by using a flat plate vibrator;
and curing and checking the expansion reinforced in-band concrete structure and repairing the defects.
By adopting the technical scheme, the estimation of the required concrete square quantity is favorable for reducing concrete waste or pouring overflow, the vertical short steel bars are used for improving the connection stability of the plate bars, the stubble blocking net is hung on the vertical short steel bars to be favorable for fixing the stubble blocking net, the deflection during pouring is reduced, mortar is paved for wetting the concrete surface of the structural plate, the expansion reinforcing belt is favorable for being combined with each other, the plug-in vibrator is used for compacting the concrete, cavitation is reduced, the flat vibrator is used for flattening the surface, and the aesthetic degree of the surface is improved.
Preferably, the water-stop steel plates are embedded in the middle of the edge when the structural plates on the two sides are poured and molded, the water-stop steel plates are embedded in the structural plates in half, when the expansion reinforcing bands are poured, a layer of water-stop steel plates is paved on the bottom side, then the water-stop steel plates are fully filled by vibrating compaction, then the upper sides of the water-stop steel plates are poured, and finally the whole vibrating compaction is carried out.
Through adopting above-mentioned technical scheme, the layering is pour and is favorable to the closely knit of stagnant water steel sheet department, reduces the insufficient cavitation that leads to of convection current of stagnant water steel sheet bottom, improves the manger plate effect of stagnant water steel sheet.
Preferably, the mortar is doped with an expanding agent, and the concrete poured in the expansion reinforcing band is doped with the same expanding agent, and the concrete poured in the expansion reinforcing band is one grade higher than the concrete of the structural board in number.
By adopting the technical scheme, the expanding agent can enable the concrete to generate micro-expansion force, and compensation stress is provided for counteracting the temperature stress of the concrete structures at two sides.
Preferably, the casting concrete in the expansion reinforced belt is sectional casting, the first section of reinforcement cage is bound and accepted by inspection, then the first section is subjected to concrete casting, when the second section of reinforcement cage is bound and accepted by inspection, the second section of concrete is cast, and the casting time interval of the two sections of concrete is more than 48 hours.
By adopting the technical scheme, the integral deformation interference construction of the large-volume ultra-long concrete in integral pouring is reduced by sectional pouring, and the pouring quantity and the pouring time are convenient to adjust.
Preferably, the construction surface and the construction joint are cleaned before the concrete is poured in the expansion reinforcing belt, the surface flatness is measured by a scraping ruler after the concrete is poured, and the uneven part is rubbed by wood to fill up the joint.
Through adopting above-mentioned technical scheme, clearance construction face and construction joint reduce rubble and debris to pouring structure's influence, improve the joint compactness of post-cast structure and former structure, and the wood is rubbed with hands and is rubbed the unevenness department and fills the seam department and fill and level up and be favorable to improving roughness and the aesthetic degree on surface, improves the water-proof effects.
Preferably, in the curing process, the concrete structure in the strong band is covered by the heat-insulating material, and the curing time is not less than 14 days.
By adopting the technical scheme, the heat insulation material can insulate the concrete, and reduces the influence of high temperature or low temperature on the concrete setting time and setting strength.
In summary, the invention has the following beneficial technical effects:
1. the rubber water stop is favorable for blocking water permeability of the joint of the concrete, the water stop capability of the expansion reinforcing belt water stop structure is further improved by effectively matching with the water stop steel plate, the rubber water stop is embedded into the concrete and the structural plate, the structural stability of the rubber water stop is improved, the water stop losing function caused by warping is reduced, the stubble blocking net is used for blocking the passage of stones in the concrete, and the connection stability between the expansion reinforcing belt and the structural plate is optimized.
2. The spacing ring is used for fixing the rubber waterstop on the structural reinforcement net to thereby prevent that the reinforcing bar deflection is too big and appear the reinforcing bar protective layer is too big to leave the structural hidden danger, improve the firm degree of rubber waterstop, reduce and drop and warp, the sawtooth form rubber waterstop can more effectively combine with concrete structure, reduce and drop, the elasticity of rubber layer is favorable to the water stopping steel sheet to combine each other with concrete structure, further improve the stagnant water ability of water steel sheet, the micro-expansive concrete is favorable to improving the joint strength of post-cast strip and structural slab, thereby adapt to the expansion and the extrusion of structural slab to post-cast strip, block the stubble net and be connected with glue waterstop and water stopping steel sheet, the installation that improves blocking the stubble net is firm, reduce the lateral deviation that the extrusion in-process of pouring leads to.
3. Estimating required concrete square quantity is favorable to reducing concrete waste or pouring overflow, vertical short steel bars are used for improving connection stability of slab bars, a stubble blocking net is hung on the vertical short steel bars and is favorable to fixing the stubble blocking net, deflection during pouring is reduced, mortar is paved firstly for wetting the concrete surface of a structural slab, the expansion reinforcing strips are favorable for being combined mutually, the inserted vibrator is used for compacting the inside of the concrete, cavitation is reduced, the flat vibrator is used for leveling the surface, and the aesthetic degree of the surface is improved.
4. The layered pouring is favorable for compacting the water-stopping steel plate, cavitation caused by insufficient convection at the bottom of the water-stopping steel plate is reduced, the water retaining effect of the water-stopping steel plate is improved, the expansion agent can enable concrete to generate micro-expansion force, compensation stress is provided for counteracting temperature stress of concrete structures at two sides, the sectional pouring reduces integral deformation interference construction of large-volume ultra-long concrete in integral pouring, pouring quantity and pouring time are convenient to adjust, the influence of broken stone and sundries on a pouring structure is reduced on a construction surface and a construction joint, the bonding compactness of a post-pouring structure and an original structure is improved, uneven wood is rubbed and the joint is filled and leveled, the flatness and the attractiveness of the surface are improved, the waterproof effect is improved, the heat insulation material can insulate heat of the concrete, and the influence of high temperature or low temperature on the concrete setting time and the setting strength is reduced.
5. The expansion reinforcing belt can eliminate the temperature stress between the compensation concrete and the original concrete, reduce the cracks generated by the shrinkage of the new concrete and the old concrete, and reduce the risk of water leakage. In addition, the special steel bar limit design is adopted, the survival quality is good, and the quality common problems of water leakage, steel bar deflection and the like of the expansion reinforcing belt are effectively solved.
Drawings
FIG. 1 is a schematic cross-sectional view of an expanded reinforcing strip of the present invention;
FIG. 2 is a schematic view in vertical section of an edge of an expanded reinforcing strip of the present invention;
fig. 3 is a construction flow chart of the present invention.
Reference numerals illustrate:
1. the device comprises a rubber water stop belt, 2, a water stop steel plate, 3, a structural reinforcing steel net, 4, a stubble blocking net, 5, a first bolt, 6, a second bolt, 7, concrete, 8, a limiting ring, 9 and a rubber layer.
Detailed Description
The invention is described in further detail below with reference to fig. 1-3.
Example 1:
the embodiment of the invention discloses a large-volume ultra-long concrete structure expansion reinforcing belt, which comprises a water stop steel plate 2, a structural reinforcing steel net 3 and concrete 7, wherein the structural reinforcing steel net 3 is arranged in the concrete 7, the structural reinforcing steel net 3 is mutually connected with reinforcing steel cages of structural plates on two sides, the concrete 7 is tightly attached to the structural plates on two sides, the water stop steel plate 2 is arranged between the concrete 7 and the structural plates on two sides, one part of the water stop steel plate 2 is inserted into the concrete 7, the other part of the water stop steel plate 2 is inserted into the structural plates, rubber water stops 1 are respectively arranged at the upper end and the lower end of a contact joint between the concrete 7 and the structural plates, the rubber water stops 1 are embedded into the concrete 7 and the structural plates, and stubble blocking nets 4 are arranged at the joint between the concrete 7 and the structural plates.
The water stop steel plate 2 and the rubber water stop belt 1 are embedded in a pre-embedded mode, and the other half is directly poured in the expansion reinforcing belt.
The stubble blocking net 4 is formed by wrapping an iron wire net outside an upper steel bar and a lower steel bar and is used for isolating new concrete from old concrete, and the stubble blocking net is welded and assembled when in use.
Example 2:
the addition of the following components is based on the embodiment 1:
referring to fig. 1 and 2, the structural reinforcement net 3 at the contact position with the rubber water stop 1 is sleeved with a limiting ring 8, the rubber water stop 1 is fixedly connected with the limiting ring 8, and one side of the rubber water stop 1, which is contacted with the concrete 7, is in a zigzag shape.
The limiting ring 8 and the rubber water stop belt 1 are integrally processed, and when the rubber water stop belt is installed, the steel bars firstly pass through the limiting ring 8 and then are bound and fixed with the structural steel bar net 3.
Referring to fig. 1 and 2, the water stop steel plate 2 is externally wrapped with a rubber layer 9, and the concrete 7 is micro-expansion concrete.
Referring to fig. 1 and 2, the stubble blocking net 4 is connected with the rubber water stop belt 1 and the water stop steel plate 2 through a first bolt 5 and a second bolt 6, respectively, and the second bolt 6 is embedded in the rubber layer 9.
The first bolt 5 is embedded in the rubber water stop 1 when the rubber water stop 1 is processed, and the second bolt 6 is embedded in the rubber layer 9 when the rubber layer 9 is processed.
Example 3:
the embodiment of the invention discloses a pouring construction method of a large-volume ultra-long concrete structure expansion reinforcing belt, which comprises the following construction steps with reference to fig. 3:
positioning the position of the paying-off expansion reinforcing belt according to the design requirement, measuring the size of the reinforcing belt, rechecking whether the design requirement is met, and estimating the required concrete square quantity;
binding a structural reinforcing steel bar net 3 in the expansion reinforcing band, binding and connecting the plate bars with the plate bars of the structural plates at two sides, and binding vertical short reinforcing steel bars;
a stubble blocking net 4 is hung on the vertical short steel bars bound on the two sides of the expansion reinforcing band;
setting up a pouring template, paving a layer of mortar at the joint of the pouring template and the structural plate, and checking the compaction condition of the joint;
integrally pouring an expansion reinforcing belt, after pouring, vibrating and compacting by using an inserted vibrator, and then vibrating and flattening by using a flat plate vibrator;
and curing and checking the expansion reinforced in-band concrete structure and repairing the defects.
The reinforcement post-cast strip width was set at 2000mm.
And paving mortar with the thickness of 30-50 mm.
And the two concrete pouring times are at least 48h apart, and the expansion reinforcing belt is poured after 7 days of concrete pouring is completed on the two sides.
And the concrete pouring time interval of the two sides of the expansion reinforcing belt is 1-2 days.
Example 4:
the addition of the following components is based on the embodiment 3:
the water-stop steel plates 2 are embedded in the middle of the edge when the structural plates on the two sides are poured and molded, the water-stop steel plates 2 are embedded in the structural plates in half, when the expansion reinforcing bands are poured, a layer of water-stop steel plates 2 are paved at the bottom side, then the water-stop steel plates 2 are fully filled by vibrating compaction, then the upper sides of the water-stop steel plates 2 are poured, and finally the whole vibrating compaction is carried out.
The mortar is internally doped with an expanding agent, the concrete poured in the expansion reinforcing band is internally doped with the same expanding agent, and the concrete poured in the expansion reinforcing band is one grade higher than the concrete of the structural plate in number.
The expansion reinforcing belt adopts compensation shrinkage concrete, the concrete label is one grade higher than the concrete labels at two sides, and micro expansion concrete is adopted for low-temperature molding.
The expansion reinforcing band inner casting concrete is formed by casting in sections, a first section of reinforcement cage is bound and accepted by inspection, then the first section is subjected to concrete casting, when a second section of reinforcement cage is bound and accepted by inspection, the second section of concrete is cast, and the time interval between the two sections of concrete casting is more than 48 hours.
And cleaning a construction surface and a construction joint before pouring concrete in the expansion reinforcing belt, measuring the surface flatness by using a scraping ruler after pouring, and leveling uneven parts by using wood to fill up the joint parts.
And during curing, the concrete structure in the strong band is covered by using the heat-insulating material, and the curing time is not less than 14 days.
Covering the compensation shrinkage concrete within 12 hours after pouring, preserving heat and curing, and keeping the average air temperature in the day below 5 ℃ and not watering.
The above embodiments are not intended to limit the scope of the present invention, so: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (10)
1. The utility model provides a bulky overlength concrete structure inflation strengthening band which characterized in that: the concrete sealing structure comprises a water sealing steel plate (2), a structural reinforcing steel net (3) and concrete (7), wherein the structural reinforcing steel net (3) is arranged inside the concrete (7), the structural reinforcing steel net (3) is connected with the reinforcing steel cages of the structural plates on the two sides, the concrete (7) is tightly attached to the structural plates on the two sides, the water sealing steel plate (2) is arranged between the concrete (7) and the structural plates on the two sides, one part of the water sealing steel plate (2) is spliced in the concrete (7), and the other part of the water sealing steel plate is spliced in the structural plates;
rubber water stops (1) are respectively arranged at the upper end and the lower end of a contact joint between the concrete (7) and the structural plate, and the rubber water stops (1) are embedded into the concrete (7) and the structural plate;
a stubble blocking net (4) is arranged at the joint of the concrete (7) and the structural plate.
2. A bulk ultra-long concrete structure expansion reinforcing tape according to claim 1, wherein: the structure reinforcing steel bar net (3) at the contact position with the rubber water stop (1) is sleeved with a limiting ring (8), the rubber water stop (1) is fixedly connected with the limiting ring (8), and one side of the rubber water stop (1) in contact with the concrete (7) and the structural plate is in a zigzag shape.
3. A bulk ultra-long concrete structure expansion reinforcing tape according to claim 1, wherein: the water-stopping steel plate (2) is externally wrapped with a rubber layer (9), and the concrete (7) is micro-expansion concrete.
4. A bulk ultra-long concrete structure expansion reinforcing tape according to claim 3, wherein: the stubble blocking net (4) is connected with the rubber water stop belt (1) and the water stop steel plate (2) through a first bolt (5) and a second bolt (6) respectively, and the second bolt (6) is embedded into the rubber layer (9).
5. A pouring construction method of a large-volume ultra-long concrete structure expansion reinforcing belt is characterized by comprising the following steps of: the construction method comprises the following construction steps:
positioning the position of the paying-off expansion reinforcing belt according to the design requirement, measuring the size of the reinforcing belt, rechecking whether the design requirement is met, and estimating the required concrete square quantity;
binding a structural reinforcing steel bar net (3) in the expansion reinforcing band, binding and connecting the plate ribs with the plate ribs of the structural plates at two sides, and binding vertical short reinforcing steel bars;
a stubble blocking net (4) is hung on the vertical short steel bars bound on the two sides of the expansion reinforcing band;
setting up a pouring template, paving a layer of mortar at the joint of the pouring template and the structural plate, and checking the compaction condition of the joint;
integrally pouring an expansion reinforcing belt, after pouring, vibrating and compacting by using an inserted vibrator, and then vibrating and flattening by using a flat plate vibrator;
and curing and checking the expansion reinforced in-band concrete structure and repairing the defects.
6. The method for pouring and constructing the expansion reinforcing belt of the large-volume ultra-long concrete structure, which is characterized in that: the waterproof steel plate (2) is embedded in the middle of the edge when the two side structural plates are poured and molded, the waterproof steel plate (2) is half embedded in the structural plates, when the expansion reinforcing belt is poured, a layer of waterproof steel plate (2) is firstly paved, then the waterproof steel plate (2) is closely knit until the waterproof steel plate is completely filled in the bottom, then the upper side of the waterproof steel plate (2) is poured, and finally the whole waterproof steel plate is closely knit in a vibrating mode.
7. The method for pouring and constructing the expansion reinforcing belt of the large-volume ultra-long concrete structure, which is characterized in that: the mortar is internally doped with an expanding agent, the concrete poured in the expansion reinforcing band is internally doped with the same expanding agent, and the concrete poured in the expansion reinforcing band is one grade higher than the concrete of the structural plate in number.
8. The method for pouring and constructing the expansion reinforcing belt of the large-volume ultra-long concrete structure, which is characterized in that: the expansion reinforcing band inner casting concrete is formed by casting in sections, a first section of reinforcement cage is bound and accepted by inspection, then the first section is subjected to concrete casting, when a second section of reinforcement cage is bound and accepted by inspection, the second section of concrete is cast, and the time interval between the two sections of concrete casting is more than 48 hours.
9. The method for pouring and constructing the expansion reinforcing belt of the large-volume ultra-long concrete structure, which is characterized in that: and cleaning a construction surface and a construction joint before pouring concrete in the expansion reinforcing belt, measuring the surface flatness by using a scraping ruler after pouring, and leveling uneven parts by using wood to fill up the joint parts.
10. The method for pouring and constructing the expansion reinforcing belt of the large-volume ultra-long concrete structure, which is characterized in that: and during curing, the concrete structure in the strong band is covered by using the heat-insulating material, and the curing time is not less than 14 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310895379.6A CN116876675A (en) | 2023-07-20 | 2023-07-20 | Large-volume ultra-long concrete structure expansion reinforcing band and pouring construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310895379.6A CN116876675A (en) | 2023-07-20 | 2023-07-20 | Large-volume ultra-long concrete structure expansion reinforcing band and pouring construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116876675A true CN116876675A (en) | 2023-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310895379.6A Pending CN116876675A (en) | 2023-07-20 | 2023-07-20 | Large-volume ultra-long concrete structure expansion reinforcing band and pouring construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116876675A (en) |
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2023
- 2023-07-20 CN CN202310895379.6A patent/CN116876675A/en active Pending
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