CN108086493B - Concrete blocking device and method for post-pouring strip of multi-ribbed beam - Google Patents
Concrete blocking device and method for post-pouring strip of multi-ribbed beam Download PDFInfo
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- CN108086493B CN108086493B CN201810099151.5A CN201810099151A CN108086493B CN 108086493 B CN108086493 B CN 108086493B CN 201810099151 A CN201810099151 A CN 201810099151A CN 108086493 B CN108086493 B CN 108086493B
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000004888 barrier function Effects 0.000 claims abstract description 118
- 210000000481 breast Anatomy 0.000 claims abstract description 60
- 238000000926 separation method Methods 0.000 claims abstract description 39
- 239000002390 adhesive tape Substances 0.000 claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 14
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 23
- 238000007493 shaping process Methods 0.000 claims description 15
- 238000010276 construction Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 5
- 229920006327 polystyrene foam Polymers 0.000 claims description 5
- 239000002023 wood Substances 0.000 claims description 5
- 239000012945 sealing adhesive Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 238000009415 formwork Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000004064 recycling 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
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Bakery Products And Manufacturing Methods Therefor (AREA)
Abstract
The invention discloses a concrete blocking device and a method for a post-pouring zone of a dense rib beam, wherein the device comprises a main breast board, an auxiliary breast board and a separation barrier net, wherein the main breast board and the auxiliary breast board are wrapped by transparent adhesive tapes, and the separation barrier net is formed by binding second dense rib beam stirrups and dense mesh steel wire nets; and selecting the position of the first dense rib beam stirrup at the post-pouring belt, firstly inserting an auxiliary barrier plate and abutting against the first dense rib beam stirrup, then inserting a main barrier plate, abutting against the auxiliary barrier plate at the front of the main barrier plate, and finally inserting a separation barrier net, and abutting against the main barrier plate. The device takes the extruded sheet as the material locally, compared with the traditional steel bar heads and the traditional battens, the device has low price, and the invention utilizes the advantages of the extruded sheet material, has certain compression resistance and elasticity, is easy to cut, has good sealing performance after filling and has good blocking effect.
Description
Technical Field
The invention relates to the field of building engineering construction, in particular to a device and a method for blocking concrete at a post-pouring zone of a multi-ribbed beam, which are suitable for blocking concrete at the post-pouring zone, an expansion reinforcing zone and a construction joint of the multi-ribbed beam.
Technical Field
The cast-in-situ concrete beam is blocked by vertically inserting a batten or a steel bar head and a steel wire mesh into the beam at a post-pouring zone or a construction joint, but in a multi-ribbed structure, the cast-in-situ concrete beam is particularly aimed at a multi-ribbed beam designed into a trapezoid shape, and the cross section of the beam is different from the shape of a conventional opening due to the large number of the multi-ribbed beams, so that the cast-in-situ concrete beam is inconvenient to operate if the batten or the steel bar head is vertically inserted; in addition, the number of required battens and reinforcing steel bars is correspondingly large, the blocking effect is not good, and therefore, the blocking device and method with good blocking effect and convenient and economical operation are urgently needed in the industry.
Disclosure of Invention
The invention aims to provide a concrete blocking device for a post-pouring strip of a multi-ribbed beam, which takes an extruded sheet as a material locally, has low cost compared with the traditional steel bar head and a square block, utilizes the advantages of the extruded sheet material, has certain compression resistance and elasticity, is easy to cut, has good sealing performance after filling, and has good blocking effect.
The invention further aims to provide a concrete blocking method for the post-pouring zone of the multi-ribbed beam, which is simple to operate, the extruded sheet with the corresponding section is manufactured according to the section shape of the multi-ribbed beam, the blocking device is manufactured into a folded type, the operation is easy, a multi-mesh steel wire mesh is adopted on the contact surface with concrete, concrete aggregate can be blocked, concrete slurry penetrating through the multi-mesh steel wire mesh is blocked by the extruded sheet, the extruded sheet is not bonded with the concrete, and the extruded sheet can be detached for recycling after the concrete is formed.
In order to solve the technical problems, the invention adopts the following technical scheme:
a be used for close rib roof beam post-cast strip department concrete to block off device, including main breast board, assistance breast board and separate the block, its characterized in that: the main breast board and the auxiliary breast board are wrapped by transparent adhesive tapes, and after being wrapped by transparent adhesive tapes, the compressive strength of the main breast board and the auxiliary breast board can be increased, and vibration and impact in the concrete pouring process are resisted. The separation barrier net is formed by binding second dense rib beam stirrups and dense mesh steel wire nets, namely the second dense rib beam stirrups are wrapped by the dense mesh steel wire nets; and selecting the position of the first dense rib beam stirrup at the post-pouring zone, firstly inserting an auxiliary barrier plate and abutting against the first dense rib beam stirrup, then inserting a main barrier plate, tightly abutting against the auxiliary barrier plate on the front side (the cutting surface of the transparent adhesive tape) of the main barrier plate, finally inserting a separation barrier net, tightly abutting against the main barrier plate by the separation barrier net, and ensuring that the gaps among the auxiliary barrier plate, the main barrier plate and the separation barrier net are within 1 mm.
In the technical scheme, the separation barrier, the main barrier and the auxiliary barrier are integrated, the separation barrier is a concrete facing surface, aggregate in concrete can be effectively isolated, and the concrete is prevented from being bonded with the main barrier; the main breast board can effectively resist the impact and vibration of concrete in the pouring process, prevent the dense mesh steel wire nets in the separation barrier net from being broken, and effectively intercept concrete slurry passing through the dense mesh steel wire nets so as to achieve the effect of blocking concrete; the auxiliary barrier mainly plays roles of making up the strength of the main barrier and blocking gaps of the reinforcement protection layers at the lower parts of the dense rib beams, and as the main barrier is made into a folding type, the middle is cut, the integrity of materials is damaged, and the auxiliary barrier can play a role of reinforcement; the first dense rib beam stirrup behind the auxiliary railing panel has the following functions: as a limit, the device is prevented from being impacted in the concrete pouring process, so that the device is prevented from sliding failure.
The main breast board and the auxiliary breast board are made of polystyrene foam board, wood board, steel board, plastic board, rubber board and other boards with certain compressive strength.
The width of the transparent adhesive tape is 40-80mm; the transparent adhesive tape is made of adhesive materials with certain toughness such as transparent box sealing adhesive tape or fiber mesh cloth.
The second dense rib beam stirrup opening (the overlapping position of the stirrup hooks) in the separation barrier is not bound, and the purpose of the unbinding is to enable the second dense rib beam stirrup opening to have certain elasticity, so that the separation barrier can be inserted into the dense rib beam from a gap between the steel bars at the upper part of the dense rib beam.
The concrete blocking device for the post-pouring strip of the multi-ribbed beam is characterized in that: the device is made of local materials, an extruded sheet filled between shaping formworks is used as a blocking material, the extruded sheet is low in price and has certain compressive strength, but brittle fracture appears after the limit compressive strength is exceeded.
A concrete blocking method for a post-pouring strip of a multi-ribbed beam comprises the following specific steps:
(1) Construction of a dense rib floor structure:
firstly, erecting a formwork support frame body, paving and fixing a shaping formwork on the formwork support frame body, then filling an extruded sheet between the bottoms of the shaping formworks, adhering a transparent adhesive tape on the extruded sheet, binding upper reinforcing steel bars of the multi-ribbed beam, first multi-ribbed beam stirrups and lower reinforcing steel bars of the multi-ribbed beam, and finally performing slab reinforcement construction;
(2) Manufacturing a folding main breast board:
The main breast board is in a special shape, the height is the net size between the upper reinforcing steel bars of the multi-ribbed beam and the lower reinforcing steel bars of the multi-ribbed beam after the binding of the reinforcing steel bars of the multi-ribbed beam is completed, and the width is the cross-section size of the multi-ribbed beam; the manufacturing steps of the main breast board are as follows: firstly, dividing a main breast board into two parts by a paper cutter, then butting the main breast board and wrapping the main breast board by using a transparent adhesive tape, finally cutting the transparent adhesive tape on the front side and the side by using the paper cutter along a dividing seam of the main breast board, and reserving a transparent adhesive tape on the back side so as to achieve the purpose that the main breast board can be folded;
(3) Manufacturing auxiliary railing panels:
The auxiliary fence plate is rectangular, the height is the height of the cross section of the multi-ribbed beam, the width is the clear distance between the steel bars at the lower part of the multi-ribbed beam, and the surface of the auxiliary fence plate is wrapped by transparent adhesive tape;
(4) Manufacturing a separation barrier:
the local material of the separation barrier net is obtained, the processed and formed first multi-ribbed beam stirrups are adopted, and the first multi-ribbed beam stirrups are wrapped by a multi-mesh steel wire net;
(5) Blocking construction of dense rib beams at post-pouring zone:
Firstly, inserting an auxiliary barrier plate into a gap between reinforcing steel bars at the lower part of a multi-ribbed beam, tightly attaching the auxiliary barrier plate to a first multi-ribbed beam stirrup at the back, folding the main barrier plate, extending the gap between reinforcing steel bars at the upper part of the multi-ribbed beam into the multi-ribbed beam, leading the front surface of the main barrier plate to face the auxiliary barrier plate, expanding the main barrier plate in a V shape until the two sides of the main barrier plate are propped against the side walls of a shaping film shell at the two sides of the multi-ribbed beam, at the moment, leading the main barrier plate to be still in the V shape, supporting one hand on the back surface of the main barrier plate, pushing the other hand from the front surface to the back surface, namely completing the expansion of the main barrier plate, then tightly attaching the auxiliary barrier plate from the back surface to the front surface by pushing the main barrier plate, inserting a separation barrier net in front of the main barrier plate, namely completing the blocking of multi-ribbed beam concrete, and finally fixing the wood for blocking concrete of the broken barrier plate above the separation barrier net and the main barrier plate and tightly abutting against the positions of the auxiliary barrier plate;
(6) Demolishing the breaking device
And after the concrete pouring is finished, the auxiliary breast board is firstly extracted, and then the main breast board is taken out.
Through the technical measures of the six steps, the most critical steps are the second step and the fifth step, so that the problem that how to adopt plates with special-shaped cross sections to close and fill the plates is mainly solved, the plates are conveniently inserted into the beams and unfolded, the blocking surface of the dense rib beams can bear the impact and vibration in the concrete pouring process, the die and slurry leakage cannot occur, after the concrete pouring is finished, one side of the dense rib beams is clean, no concrete leakage exists at the bottom of the dense rib beams or little concrete slurry is solidified, and compared with the prior art, a large amount of labor is not required to be spent to chisel and clean concrete in the casting area at the post-pouring area to flow the concrete in the non-casting area. Compared with the prior art, the invention has the main differences of high installation speed, low cost, good blocking effect and repeated use.
Compared with the prior art, the invention has the advantages that:
(1) The device provided by the invention has the advantages that the cost is low, the device can be reused, the main breast board can be well attached to the shaping mould shell, and the sealing performance is good.
(2) The construction method changes the main breast board into a folding type, can easily extend into the multi-ribbed beam, expands and fills the cross section of the multi-ribbed beam, sets the separation barrier as a concrete facing surface, can better prevent the main breast board from being bonded with concrete to cause the pollution of the concrete facing surface, and has the characteristics of quick construction, low cost and simple operation, and has stronger popularization.
Drawings
FIG. 1 is a front view of a main rail for a concrete cutoff device at a multi-ribbed post-cast strip;
FIG. 2 is a bottom view of a main rail for a concrete cutoff at a multi-ribbed post-cast strip;
FIG. 3 is a front view (top view) and bottom view (bottom view) of an auxiliary rail plate for a concrete cutoff device at a multi-ribbed post-cast strip;
FIG. 4 is a front view (FIG. a) and bottom view (FIG. b)) of a divider screen for a concrete cutoff at a multi-ribbed post-cast strip;
FIG. 5 is a schematic illustration of a folding of a main rail for a concrete cutoff at a multi-ribbed post-cast strip;
FIG. 6 is a schematic illustration of a placement sequence for a concrete cutoff device at a multi-ribbed post-cast strip;
FIG. 7 is a sectional view of an installation for a concrete cutoff device at a multi-ribbed post-cast strip;
FIG. 8 is a top plan view of an installation for a concrete cutoff device at a multi-ribbed post-cast strip;
FIG. 9 is a concrete placement completion view of a concrete blocking device for use at a post-cast strip of a multi-ribbed beam;
FIG. 10 is an elevation view of an inboard installation of a multi-ribbed beam for a concrete cutoff at a post-cast strip of the multi-ribbed beam;
In the figure: 1. the main breast board, 2, auxiliary breast board, 3, separate the block, 3a, first dense rib beam stirrup, 3b, second dense rib beam stirrup, 3c, dense mesh wire net, 4, transparent adhesive tape, 5, dense rib beam upper portion reinforcing bar, 6, dense rib beam lower portion reinforcing bar, 7, board reinforcing bar, 8, shaping mould shell, 9, extruded sheet, 10, template support frame, 11, batten, 12, concrete.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The dense rib floor structure is generally designed with shaping forms, extruded sheets can be adopted to fill the bottoms of the shaping forms, and dense rib beams are arranged between the shaping forms. In the following examples, an extruded sheet (polystyrene foam sheet) having a thickness of 25mm is taken as an example of the blocking material.
Example 1
As shown in fig. 1-10, a concrete blocking device for a post-pouring strip of a multi-ribbed beam comprises a main breast board 1, an auxiliary breast board 2 and a separation barrier net 3, and is characterized in that: the main breast board 1 and the auxiliary breast board 2 are wrapped by the transparent adhesive tape 4, and after being wrapped by the transparent adhesive tape 4, the compressive strength of the main breast board 1 and the auxiliary breast board 2 can be increased, and vibration and impact in the pouring process of the concrete 12 are resisted. The separation barrier 3 is formed by binding second dense rib beam stirrups 3b and dense mesh steel wires 3c, namely the second dense rib beam stirrups 3b are wrapped by the dense mesh steel wires 3 c; at the post-pouring zone, selecting the position of the first multi-ribbed beam stirrup 3a, firstly inserting the auxiliary barrier plate 2 and abutting against the first multi-ribbed beam stirrup 3a, then inserting the main barrier plate 1, abutting against the auxiliary barrier plate 2 on the front surface (transparent adhesive tape cutting surface) of the main barrier plate 1, finally inserting the separation barrier net 3, and abutting against the main barrier plate 1 on the separation barrier net 3. In the technical scheme, the separation barrier 3, the main barrier 1 and the auxiliary barrier 2 are integrated, the separation barrier 3 is a face facing the concrete 12, aggregate in the concrete 12 can be effectively isolated, and the concrete 12 is prevented from being bonded with the main barrier 1; the main breast board 1 can effectively resist the impact and vibration of the concrete 12 in the pouring process, prevent the dense mesh steel wire mesh 3c in the separation barrier 3 from being broken, and can effectively intercept the slurry of the concrete 12 penetrating through the dense mesh steel wire mesh 3c so as to achieve the blocking effect of the concrete 12; the auxiliary barrier 2 mainly plays roles of making up the strength of the main barrier 1 and blocking the gap between the protective layers of the reinforcing steel bars 6 at the lower part of the multi-ribbed beam, and as the main barrier 1 is made into a folding type, the middle is cut, the integrity of materials is damaged, and the auxiliary barrier 2 can play a role of reinforcing; the first multi-ribbed stirrup 3a behind the auxiliary railing panel 2 has the following functions: as a limit, the device is prevented from being impacted by the concrete 12 in the casting process, so that the device fails in sliding.
The main breast board 1 and the auxiliary breast board 2 are made of polystyrene foam boards with the thickness of 25 mm.
The width of the transparent adhesive tape 4 is 40mm or 60mm or 80mm; the transparent adhesive tape comprises the following materials: transparent sealing adhesive tape.
The openings (overlapping positions of stirrup hooks) of the stirrups 3b of the dense rib beams in the separation barrier net 3 are not bound.
Example 2
A concrete blocking method for a post-pouring strip of a multi-ribbed beam comprises the following specific steps:
(1) Construction of a dense rib floor structure:
Firstly, erecting a template support frame body 10, paving and fixing a shaping mould shell 8 on the template support frame body 10, then filling an extruded sheet 9 between the bottoms of the shaping mould shells 8, adhering a transparent adhesive tape 4 on the extruded sheet 9, binding upper reinforcing steel bars 5 of the dense rib beams, first dense rib beam stirrups 3a and lower reinforcing steel bars 6 of the dense rib beams, and finally constructing plate reinforcing steel bars 7;
(2) Manufacturing of the folding main breast board 1:
the main breast board 1 is in a special shape, the height is the net size between the upper reinforcing steel bars 5 of the multi-ribbed beam and the lower reinforcing steel bars 6 of the multi-ribbed beam after the binding of the reinforcing steel bars of the multi-ribbed beam is completed, and the width is the cross-section size of the multi-ribbed beam; the manufacturing steps of the main breast board 1 are as follows: firstly, dividing a main breast board 1 into two parts by a paper cutter, then butting the two parts together and wrapping the two parts by using a transparent adhesive tape 4, finally, cutting the transparent adhesive tape 4 on the front side and the side by using the paper cutter along a parting line of the main breast board 1, and reserving the transparent adhesive tape 4 on the back side so as to achieve the purpose that the main breast board 1 can be folded;
(3) Manufacturing an auxiliary railing panel 2:
the auxiliary fence plate 2 is rectangular, the height is the height of the cross section of the multi-ribbed beam, the width is the clear distance between the steel bars 6 at the lower part of the multi-ribbed beam, and the surface of the auxiliary fence plate 2 is wrapped by the transparent adhesive tape 4;
(4) Manufacturing a separation barrier 3:
The separation barrier 3 is obtained by taking local materials, adopting a processed and molded second multi-ribbed beam stirrup 3b, and wrapping the second multi-ribbed beam stirrup 3b by a multi-mesh steel wire mesh 3c to obtain the separation barrier 3;
(5) Blocking construction of dense rib beams at post-pouring zone:
Firstly, inserting an auxiliary barrier plate 2 into a gap between reinforcing steel bars 6 at the lower part of a multi-ribbed beam, tightly attaching a first multi-ribbed beam stirrup 3a at the back, folding a main barrier plate 1, extending into the multi-ribbed beam from the gap between reinforcing steel bars 5 at the upper part of the multi-ribbed beam, leading the front surface of the main barrier plate 1 to face the auxiliary barrier plate 2, expanding the main barrier plate 1 to the side walls of a shaping film shell 8 on the two sides of the multi-ribbed beam in a V shape, holding one hand on the back surface of the main barrier plate 1, pushing the other hand from the front surface to the back surface, namely completing the expansion of the main barrier plate 1, tightly attaching the auxiliary barrier plate 2 from the back surface to the front surface of the main barrier plate 1, inserting a separation barrier net 3 in front of the main barrier plate 1, namely completing the blocking of multi-ribbed beam concrete, and finally fixing a wood block 11 for blocking concrete 12 above the separation barrier net 3 and the main barrier plate 1 and abutting against the position of the auxiliary barrier plate 2;
(6) Demolishing the breaking device
After the concrete 12 is poured, the auxiliary breast board 2 is firstly pulled out, and then the main breast board 1 is taken out.
Claims (5)
1. The blocking method for the concrete blocking device at the post-pouring zone of the multi-ribbed beam comprises a main breast board (1), an auxiliary breast board (2) and a separation barrier net (3), and is characterized in that: the main breast board (1) and the auxiliary breast board (2) are wrapped by transparent adhesive tapes (4), and the separation barrier (3) is formed by binding second dense rib beam stirrups (3 b) and dense mesh steel wire nets (3 c); selecting the position of a first multi-ribbed beam stirrup (3 a) at the post-pouring zone, firstly inserting an auxiliary barrier plate (2) and abutting against the first multi-ribbed beam stirrup (3 a), then inserting a main barrier plate (1), tightly abutting against the auxiliary barrier plate (2) on the front surface of the main barrier plate (1), finally inserting a separation barrier net (3), and tightly abutting against the main barrier plate (1) by the separation barrier net (3);
the method comprises the following steps:
A. Construction of a dense rib floor structure:
firstly, erecting a template support frame body (10), paving and fixing a shaping mould shell (8) on the template support frame body (10), then filling an extruded sheet (9) between the bottoms of the shaping mould shells (8), sticking a transparent adhesive tape (4) on the extruded sheet (9), binding upper reinforcing steel bars (5) of the dense rib beams, first dense rib beam stirrups (3 a) and lower reinforcing steel bars (6) of the dense rib beams, and finally constructing plate reinforcing steel bars (7);
B. manufacturing of a folding main breast board (1):
the main breast board (1) is in a special shape, the height is the net size between the upper reinforcing steel bars (5) of the multi-ribbed beam and the lower reinforcing steel bars (6) of the multi-ribbed beam after the binding of the reinforcing steel bars of the multi-ribbed beam is completed, and the width is the cross-section size of the multi-ribbed beam; the manufacturing steps of the main breast board (1) are as follows: firstly, dividing a main breast board (1) into two parts by a paper cutter, then butting the two parts together and wrapping the two parts together by using a transparent adhesive tape (4), finally cutting the transparent adhesive tape (4) on the front side and the side along a parting line of the main breast board (1) by the paper cutter, and reserving the transparent adhesive tape (4) on the back side;
C. Manufacturing an auxiliary railing panel (2):
the auxiliary barrier plate (2) is rectangular, the height is the height of the cross section of the multi-ribbed beam, the width is the clear distance between the steel bars (6) at the lower part of the multi-ribbed beam, and the surface of the auxiliary barrier plate (2) is wrapped by the transparent adhesive tape (4);
D. Manufacturing a separation barrier (3):
The separation barrier net (3) is obtained by taking local materials, adopting a processed and molded second multi-ribbed beam stirrup (3 b), and wrapping the second multi-ribbed beam stirrup (3 b) by a multi-mesh steel wire mesh (3 c) to obtain the separation barrier net (3);
E. Blocking construction of dense rib beams at post-pouring zone:
Firstly, inserting an auxiliary barrier plate (2) into a gap between reinforcing bars (6) at the lower part of a multi-ribbed beam, tightly attaching a first multi-ribbed beam stirrup (3 a) at the back, folding a main barrier plate (1), extending into the multi-ribbed beam from the gap between reinforcing bars (5) at the upper part of the multi-ribbed beam, leading the front surface of the main barrier plate (1) to face the auxiliary barrier plate (2), expanding the main barrier plate (1) in a V shape to the side walls of a shaping film shell (8) which is propped against the two sides of the multi-ribbed beam at the two sides of the main barrier plate (1), leading one hand to be supported on the back surface of the main barrier plate (1), pushing the other hand to push the main barrier plate (1) from the front surface to the back surface, tightly attaching the auxiliary barrier plate (2) with the main barrier plate (1), leading the front surface of the main barrier plate (1) to be inserted with a separation net (3), completing the blocking of the multi-ribbed beam concrete, and finally, fixing a wood barrier (11) for blocking concrete (12) on the back surface of the barrier plate (3) and the main barrier plate (2);
F. Dismantling the blocking device:
after the concrete (12) is poured, the auxiliary breast board (2) is firstly pulled out, and then the main breast board (1) is taken out.
2. The method for stopping a concrete stopping device at a post-cast strip of a multi-ribbed beam according to claim 1, wherein: the openings of the dense rib beam stirrups (3 b) in the separation barrier net (3) are not bound.
3. The method for stopping a concrete stopping device at a post-cast strip of a multi-ribbed beam according to claim 1, wherein: the main breast board (1) and the auxiliary breast board (2) are polystyrene foam boards or wood boards or steel plates or plastic boards or rubber plates.
4. A method for stopping a concrete stopping device at a post-cast strip of a multi-ribbed beam according to claim 1 or 3, wherein: the main breast board (1) and the auxiliary breast board (2) adopt polystyrene foam boards with the thickness of 25 mm.
5. The method for stopping a concrete stopping device at a post-cast strip of a multi-ribbed beam according to claim 1, wherein: the width of the transparent adhesive tape (4) is 40-80mm; the transparent adhesive tape (4) is transparent box sealing adhesive tape or fiber mesh cloth.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810099151.5A CN108086493B (en) | 2018-01-31 | 2018-01-31 | Concrete blocking device and method for post-pouring strip of multi-ribbed beam |
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| CN201810099151.5A CN108086493B (en) | 2018-01-31 | 2018-01-31 | Concrete blocking device and method for post-pouring strip of multi-ribbed beam |
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| CN108086493B true CN108086493B (en) | 2024-05-10 |
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| CN109811909A (en) * | 2019-01-21 | 2019-05-28 | 中国十七冶集团有限公司 | A kind of fixed structure and construction method of putamina multi-ribbed plate steel plate for sealing water |
| CN112359675B (en) * | 2020-10-20 | 2022-03-11 | 河南省交通勘察设计有限公司 | Pavement concrete expansion reinforcing belt and construction method thereof |
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