CN113183300B - Demoulding construction method of mechanical force transmission type beam end template - Google Patents

Demoulding construction method of mechanical force transmission type beam end template Download PDF

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Publication number
CN113183300B
CN113183300B CN202110506726.2A CN202110506726A CN113183300B CN 113183300 B CN113183300 B CN 113183300B CN 202110506726 A CN202110506726 A CN 202110506726A CN 113183300 B CN113183300 B CN 113183300B
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oil cylinder
end template
beam end
hole
block
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CN113183300A (en
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黄伟群
朱儒伦
石理和
章美娟
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Zhejiang Wanli Construction Engineering Co ltd
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Zhejiang Wanli Construction Engineering Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
    • B28B13/04—Discharging the shaped articles
    • B28B13/06—Removing the shaped articles from moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0002—Auxiliary parts or elements of the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0002—Auxiliary parts or elements of the mould
    • B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/60—Planning or developing urban green infrastructure

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Abstract

The application relates to a demolding construction method of a mechanical transmission type beam end template, relates to the field of production and manufacturing of precast beams, and comprises the following steps: step S2: removing the edge blocking block in the edge hole, and connecting a screwing block in the edge hole through internal threads; arranging an oil cylinder, wherein two ends of the oil cylinder respectively act on the end template and the end part of the prying bar; step S3: when the oil cylinder is controlled to extend, the end part of the prying rod, which is far away from the oil cylinder, applies pressure on the screwing block, and a person rotates the screwing block through the screwing head to enable the screwing block to move towards the beam end; step S4: and detaching the oil cylinder, taking out the middle blocking block in the middle hole, installing the oil cylinder back, enabling the oil cylinder to penetrate through the middle hole, enabling the two ends of the oil cylinder to respectively act on the end part of the prying bar and the end head of the beam, and controlling the extension of the oil cylinder. The construction method is convenient for realizing the separation of the end template and the beam end, and reduces the possibility of damaging the beam end structure; the operation can be completed by using a single oil cylinder, and the operation of personnel is labor-saving; the construction method has strong operability and is easy to modify and construct on the existing end template.

Description

Demoulding construction method of mechanical force transmission type beam end template
Technical Field
The application relates to the field of production and manufacturing of precast beams, in particular to a demolding construction method of a mechanical force transmission type beam end template.
Background
In the construction of urban highway bridges, in order to facilitate construction and improve construction efficiency, the projects of assembling and constructing the bridges and the elevated frames by adopting prefabricated parts are gradually increased. The construction of precast beams is now a common construction means for bridge engineering, and the prefabrication process generally comprises the following steps: and (3) installing steel bars in the steel mould, pouring concrete in the steel mould, and dismantling the steel mould after the concrete is solidified. The steel mould is formed by splicing a plurality of templates.
For large precast beams, steel plates are mostly adopted for all the templates. In the process of removing the template, the template at the end of the beam is usually driven into the position of a concrete joint of the template and the end, and then the template is separated from the end of the beam in an iron hammer knocking mode.
In view of the above-mentioned related technologies, the inventor believes that when the area of the beam end formwork is large, the formwork is difficult to separate from the beam end by means of edge knocking and hammering, and the structure of the formwork and the beam end is easily damaged by the knocking violence.
Disclosure of Invention
In order to facilitate the separation of the end template and the beam end and reduce the possibility of damaging the structure of the beam end head, the application provides the demolding construction method of the mechanical transmission type beam end template.
The application provides a mechanical transmission type beam end template demoulding construction method, which adopts the following technical scheme:
a mechanical transmission type beam end template demoulding construction method comprises the steps that an end template is provided with a center hole and a plurality of side holes, the center hole is located in the center of the end template, the side holes are distributed around the circumference of the center hole, the side holes are threaded holes, a middle plugging block is plugged in the center hole, and an edge plugging block is plugged in the side holes; the construction method comprises the following steps:
step S1: a plurality of prying bars are rotatably arranged on one side of the end template, which is far away from the beam end, one ends of the prying bars are respectively opposite to the side holes, and the other ends of the prying bars are opposite to the middle hole;
step S2: removing the edge blocking block in the edge hole, and connecting a screwing block into the edge hole through threads, wherein the screwing block is provided with a screwing head; an oil cylinder is arranged on one side of the end template, which is far away from the beam end, the oil cylinder is positioned outside the middle hole and is opposite to the middle hole, and two ends of the oil cylinder respectively act on the end template and the end part of the pry bar;
step S3: when the oil cylinder is controlled to extend, the end part of the prying rod, which is far away from the oil cylinder, applies pressure on the screwing block, and a person rotates the screwing block through the screwing head to enable the screwing block to move towards the beam end;
step S4: and detaching the oil cylinder, taking out the middle blocking block in the middle hole, installing the oil cylinder back, enabling the oil cylinder to penetrate through the middle hole, enabling the two ends of the oil cylinder to respectively act on the end part of the prying bar and the end head of the beam, and controlling the oil cylinder to extend until the end template is separated from the end head of the beam.
By adopting the technical scheme, when the operation is carried out in the step S3, the oil cylinder is controlled to extend, under the reverse supporting action of the pry bar, the force of the oil cylinder acts on the screwing block through the pry bar, and a person acts on the screwing head through the wrench to rotate the screwing block, so that the screwing block moves towards the beam end. Because the force towards the beam end direction is applied to the twisting block by the prying rod, a person can easily twist the twisting block. After a person twists the twisting block, the twisting block moves towards the beam end, or the tendency of moving towards the beam end is generated, and larger thrust exists between the twisting block and the beam end. And screwing all the screwing blocks to a state that the screwing blocks cannot be screwed continuously, wherein the thrust of all the side plates on the beam end is larger, but the beam end is still difficult to separate from the end template.
In step S4, one end of the oil cylinder acts on the end of the pry bar, and the other end of the oil cylinder acts on the end of the beam. And the oil cylinder is controlled to extend and continuously pressurize, the force of the oil cylinder acts on the beam end under the reverse supporting action of the pry bar, so that the end template tends to be separated from the beam end, and under the combined action of the thrust of the oil cylinder and the thrust of the twisting block acting on the beam end, the joint surface of the end template and the beam end is separated, so that the separation of the end template and the beam end is completed.
In conclusion, by the construction method, when the area of the beam end template is large, the separation of the end template and the beam end can be reliably completed, the operation can be completed by using a single oil cylinder, the structure of the beam end is not easy to damage, and the operation of personnel is labor-saving.
Optionally, a plurality of arch bars are fixed on one side of the end template, which is far away from the beam end, the arch bars are respectively located between each side hole and the middle hole, the arch bars are arranged in a bent manner, two ends of each arch bar are fixed on the end template, and a through passage is formed between each arch bar and the end template in an enclosing manner; in step S1, the pry bar is inserted through the through-passage so that the arch bar is located at the middle of the pry bar in the length direction.
Through adopting above-mentioned technical scheme, the crowbar passes through the arch bar and establishes to rotate with the end template and is connected, and the arch bar is crooked to be set up, and the both ends of arch bar are fixed in the end template, make the arch bar can bear great power, and the arch bar is difficult for breaking away from the end template when the crowbar receives the hydro-cylinder power.
Optionally, in step S1, the pressing plate is taken, the middle of the pressing plate is aligned with the arch bar, two ends of the pressing plate are fixed to the pry bar through bolts, and the arch bar is limited between the pressing plate and the pry bar.
By adopting the technical scheme, after the compression bar is installed, the arch bar is limited between the compression plate and the prying bar, and the prying bar is rotatably connected with the end template through the arch bar to form a lever; and through the limiting effect of the pressing plate, the prying bar cannot fall off from the arch bar, and construction is facilitated.
Optionally, the arch bar is a steel bar, and the arch bar penetrates into the end formwork and is welded and fixed with the end formwork.
By adopting the technical scheme, the reinforcing steel bars are common materials in building construction and have higher strength; the reinforcing bar is comparatively firm with the fixed mode of end template.
Optionally, in step S2, a rigid backing plate is disposed on a side of the end template away from the beam end, the backing plate covers an orifice of the middle hole, and two plate surfaces of the backing plate respectively contact the end template and the oil cylinder; when the oil cylinder is detached in the step S4, the base plate is detached.
By adopting the technical scheme, in the step S2, the base plate is arranged to replace an end template to be in direct contact with the oil cylinder, the base plate can be in a large size, the base plate is used for transmitting the force of the oil cylinder to the end template, and the base plate is used for preventing the force of the oil cylinder from directly acting on the middle blocking block, so that the middle blocking block is deformed towards the beam end.
Optionally, the middle blocking block is a rubber block, a cylindrical cutting cylinder is fixed on one side of the base plate facing the middle hole, and the cutting cylinder can be inserted between the hole walls of the middle blocking block and the middle hole.
Through adopting above-mentioned technical scheme, the well sprue of rubber material has elasticity, and when concreting in the mould, well sprue can reliably be sealed the mesopore. In step S2, the force of the oil cylinder acts on the base plate, the cut cylinder is inserted between the middle block and the hole wall of the middle hole, and the middle block is reduced in diameter due to elastic deformation and is embedded into the cut cylinder, so that the fixing force between the middle block and the middle hole is overcome, and the separation of the middle block and the hole wall of the middle hole is realized. When the base plate is taken out in the step S4, the middle blocking block can be taken out of the middle hole, so that labor is saved.
Optionally, the part of the side blocking block, which is used for contacting the wall of the side hole, is made of rubber.
Through adopting above-mentioned technical scheme, the limit sprue position of rubber material has elasticity, and when concreting in the mould, the limit sprue can reliably be sealed the limit hole. Step S2 is that during the process of screwing out the edge block, the rubber part of the edge block can deform to be conveniently separated from the solidified concrete, and during the process of rotating the edge block, the rubber part of the edge block can clean the threads of the edge hole through friction.
Optionally, a middle groove communicated with the middle hole is formed in one side, facing the beam end, of the end formwork, the middle hole is located at the bottom of the middle groove, the size of the middle groove is larger than that of the middle hole, a middle plate is embedded in the middle groove and completely fills the middle groove, and the surfaces, facing the beam end, of the middle plate and the end formwork are flush.
By adopting the technical scheme, the middle plate is arranged to replace the oil cylinder to be in direct contact with the beam end head in the step S4, and the middle plate can be arranged in a larger area. When the oil cylinder extends, the area of force acting on the beam end is enlarged, and the surface of the beam end is prevented from being damaged by pressure. Meanwhile, the middle plate is not easy to influence the end face forming quality of the beam end head during pouring.
Optionally, the end template sets up the limit groove of intercommunication limit hole towards one side of roof beam end, the limit hole is located the tank bottom of limit groove, the size in limit groove is greater than the limit hole, the embedded sideboard that is equipped with in limit groove, the limit groove is filled completely to the sideboard, end template flush towards the face of roof beam end one side.
Through adopting above-mentioned technical scheme, through setting up the sideboard, the sideboard replaces to twist piece and beam-ends direct contact during step S3, and the sideboard can set up great area. When the twisting block moves towards the beam end, the area of the beam end acted by force is enlarged, and the surface of the beam end is prevented from being damaged by pressure. Meanwhile, the end face forming quality of the beam end head during pouring is not easily influenced by the side plates.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the construction method is convenient for realizing the separation of the end template and the beam end, and reduces the possibility of damaging the structure of the beam end;
2. the operation can be completed by using a single oil cylinder, and the operation of personnel is labor-saving;
3. the operability is strong, and the method is easy to reform and construct on the existing end template.
Drawings
Fig. 1 is an external structural view of an end die plate according to an embodiment of the present application.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
FIG. 3 is a schematic diagram of steps S1-S3 of the embodiment.
Fig. 4 is a longitudinal sectional view of fig. 3.
Fig. 5 is a schematic view of the cutting cylinder of the embodiment in cooperation with the center hole.
Fig. 6 is a schematic diagram of step S4 of the embodiment.
Description of reference numerals: 10. a beam end; 1. an end template; 11. a mesopore; 12. a side hole; 111. a middle blocking block; 121. edge blocking blocks; 13. a middle groove; 14. a side groove; 131. a middle plate; 141. a side plate; 2. an arch bar; 21. passing through a channel; 3. a pry bar; 31. pressing a plate; 4. twisting the block; 41. screwing the head; 5. an oil cylinder; 6. a base plate; 61. and (7) cutting the cylinder.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses a demolding construction method of a mechanical transmission type beam end template. Referring to fig. 1, the end template 1 is provided with a central hole 11 and a plurality of side holes 12, the central hole 11 is located in the center of the end template 1, the side holes 12 are distributed around the circumference of the central hole 11, both the central hole 11 and the side holes 12 penetrate through the end template 1, and the aperture of the central hole 11 is larger than that of the side holes 12.
Referring to fig. 1 and 2, the hole wall of the central hole 11 is a cylindrical surface, a middle blocking block 111 made of rubber is blocked in the central hole 11, the middle blocking block 111 is a cylindrical block body with a shape matched with that of the central hole 11, and the middle blocking block 111 tightly abuts against the hole wall of the central hole 11 through elasticity and seals the central hole 11. The side hole 12 is a threaded hole, the side block 121 is blocked in the side hole 12, the center of the side block 121 is a solid metal block, the circumferential outer wall of the side block 121 is a rubber layer, the rubber layer is fixed with the solid metal block, and the outer wall of the rubber layer is provided with an external thread section in threaded connection with the side hole 12.
One side of the end formwork 1 facing the beam end 10 is provided with a middle groove 13 communicated with the middle hole 11 and a side groove 14 communicated with the side hole 12. The mesopore 11 is located the tank bottom of well groove 13, and the size of well groove 13 is greater than mesopore 11, and well inslot 13 is embedded to be equipped with medium plate 131, and medium plate 131 is the steel sheet, and well groove 13 is filled completely to medium plate 131, and medium plate 131 can be through removing protrusion well groove 13. The side grooves 14 correspond to the side holes 12 one by one, the side holes 12 are located at the bottoms of the side grooves 14, the size of each side groove 14 is larger than that of each side hole 12, side plates 141 are embedded in the side grooves 14, the side plates 141 are steel plates, the side plates 141 completely fill the side grooves 14, the side plates 141 can protrude out of the side grooves 14 through moving, and the middle plates 131, the side plates 141 and the end formwork 1 are flush with the plate surface on one side of the beam end 10.
A plurality of arch bars 2 are fixed on the side of the end formwork 1 facing away from the beam end 10, and the arch bars 2 are respectively positioned between each side hole 12 and the middle hole 11. The arch bar 2 is a steel bar which is arranged in a bending way, two ends of the arch bar 2 penetrate into the end template 1 in a bending way and are welded and fixed with the end template 1, and a penetrating channel 21 is formed between the arch bar 2 and the end template 1 in a surrounding way.
When concrete is poured in the mould, the concrete cannot leak on the surface of the end template 1 in the pouring process through the sealing effect of the middle blocking block 111 on the hole 11 and the sealing effect of the side blocking block 121 on the side hole 12. After the beam is poured in the die, the beam is solidified into a solid, the beam end 10 is in contact with the end template 1, and a large fixing force exists between the beam end 10 and the end template 1.
The demolding construction method comprises the following steps:
step S1: referring to fig. 3 and 4, a plurality of pry bars 3 are rotatably arranged on one side of the end formwork 1, which is far away from the beam end 10, and the pry bars 3 correspond to the side holes 12 and the arch bars 2 one by one. The pry bar 3 is a rigid bar made of steel or other metals, and a person penetrates the pry bar 3 through the through channel 21 to enable the arch bar 2 to be located in the middle of the pry bar 3 in the length direction, the side hole 12 faces one end of the pry bar 3, and the middle hole 11 faces the other end of the pry bar 3.
Then taking a press plate 31 which is arranged in a bending mode, wherein the press plate 31 is located on one side, away from the pry bar 3, of the arch bar 2, the middle of the press plate 31 is opposite to the arch bar 2, two ends of the press plate 31 are fixed on the pry bar 3 through bolts, the arch bar 2 is limited between the press plate 31 and the pry bar 3, and after the process is finished, the pry bar 3 is rotatably connected with the end template 1 through the arch bar 2 to form a lever; and the pry bar 3 cannot fall off from the arch bar 2 through the limiting action of the pressure plate 31.
Step S2: referring to fig. 2 and 4, the edge block 121 in the edge hole 12 is removed, and the removal is performed by rotating the edge block 121, screwing out the edge block 121 through a screw connection, and operating with a rotary electric tool. Because the part of the edge blocking piece 121 contacting the edge hole 12 is made of rubber, the edge blocking piece 121 can deform to be conveniently separated from the solidified concrete, and the edge blocking piece 121 can clean the threads of the edge hole 12 through friction in the process of rotating the edge blocking piece 121.
A hard metal screwing block 4 is adopted, the screwing block 4 is provided with a thread part which is in thread fit with the side hole 12, and a screwing head 41 is fixed at one end of the screwing block 4, which is far away from the beam end 10. The person threads into the side hole 12 and inserts the tightening block 4 until the tightening block 4 abuts against the side plate 141.
Referring to fig. 4 and 5, an oil cylinder 5 is arranged on one side of the end template 1, which is away from the beam end 10, the oil cylinder 5 is located outside the middle hole 11 and faces the middle hole 11, a backing plate 6 is placed between the oil cylinder 5 and the middle hole 11, the backing plate 6 is made of steel or other rigid materials, the orifice of the middle hole 11 is covered by the backing plate 6, and the plate surface of the backing plate 6 is used for acting on the plate surface of the end template 1, which is away from the beam end 10. One end of the oil cylinder 5 jointly acts on the end part of all the pry bars 3 departing from the twisting block 4, and the other end of the oil cylinder 5 acts on the end head template 1 through the base plate 6. A cylindrical cutting cylinder 61 is fixed on one side, facing the middle hole 11, of the base plate 6, the cutting cylinder 61 is a thin-wall metal cylinder, the end, facing away from the base plate 6, of the cutting cylinder 61 is in a knife edge shape, and the cutting cylinder 61 is set to be just capable of being inserted between the middle blocking block 111 and the hole wall of the middle hole 11.
Step S3: referring to fig. 4, the part of the cutting cylinder 61 of the backing plate 6 is knocked into the space between the middle blocking block 111 and the hole wall of the middle hole 11, the oil cylinder 5 is held at the middle hole 11 by means of lifting ropes, lifting and the like, and the length direction of the oil cylinder 5 is perpendicular to the plate surface of the end template 1. Then the oil cylinder 5 is controlled to extend, under the reverse supporting action of the pry bar 3, the force of the oil cylinder 5 acts on the backing plate 6, the cutting cylinder 61 is completely inserted between the hole walls of the middle blocking block 111 and the middle hole 11, the middle blocking block 111 is reduced in diameter due to elastic deformation and is embedded into the cutting cylinder 61, and therefore the fixing force between the middle blocking block 111 and the middle hole 11 is overcome, and the separation of the middle blocking block 111 and the hole wall of the middle hole 11 is achieved.
When the plate surface of the backing plate 6 contacts the plate surface of the end template 1, the pressure state in the oil cylinder 5 is kept and the pressure is continuously applied, the force of the oil cylinder 5 acts on the screwing block 4 through the prying bar 3, and a person acts on the screwing head 41 through a wrench to rotate the screwing block 4, so that the screwing block 4 moves towards the beam end 10. Because the pry bar 3 applies force to the screwing block 4 in the direction of the beam end 10, a person can easily screw the screwing block 4. When the person screws the screw block 4, the screw block 4 pushes the side plate 141 to slightly protrude from the side groove 14, or the side plate 141 tends to protrude from the side groove 14, so that a large pushing force is generated between the side plate 141 and the beam end 10 (F1). All the screwing blocks 4 are screwed to a state that the screwing cannot be continued, and the thrust of all the side plates 141 on the beam end 10 is large, but the beam end 10 is still difficult to separate from the end formwork 1.
Step S4: referring to fig. 6, the oil cylinder 5 is removed and the pad 6 is removed. Backing plate 6 has the hand (hold), and the taking out of backing plate 6 can adopt the winch pulling to assist, and at the in-process of taking off backing plate 6, cutting section of thick bamboo 61 through the pore wall sliding contact of outer wall with mesopore 11, backing plate 6 is in the lump with well sprue 111 take out mesopore 11, comparatively laborsaving. Then the oil cylinder 5 is installed back, the oil cylinder 5 passes through the middle hole 11, after the oil cylinder 5 is extended, one end of the oil cylinder 5 acts on the end part of the pry bar 3, and the other end of the oil cylinder 5 acts on the beam end 10 through the middle plate 131.
The oil cylinder 5 is controlled to extend and continuously pressurize, under the reverse supporting action of the pry bar 3, the force of the oil cylinder 5 acts on the beam end 10 to generate thrust (F2), so that the end template 1 tends to be separated from the beam end 10, the area of the force acting on the beam end 10 is enlarged due to the middle plate 131, and the surface of the beam end 10 is prevented from being damaged by pressure. Under the combined action of the thrust of the middle plate 131 (F2) and the thrust of the side plate 141 acting on the beam end 10 (F1), the joint surfaces of the end formwork 1 and the beam end 10 are separated, and the separation of the end formwork 1 from the beam end 10 is completed.
In the process of extending and pressurizing the oil cylinder 5, because the plurality of prying bars 3 and the plurality of arch bars 2 share the force of the oil cylinder 5, the prying bars 3 are not easy to bend due to overlarge stress, and the arch bars 2 are not easy to pull out from the end template 1.
In conclusion, according to the construction method, when the area of the end formwork 1 is large, the end formwork 1 can be reliably separated from the beam end 10, the operation can be completed by using the single oil cylinder 5, the structure of the beam end 10 is not easy to damage, and the operation of personnel is labor-saving.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. A demoulding construction method of a mechanical transmission type beam end template is characterized in that: the end template (1) is provided with a center hole (11) and a plurality of side holes (12), the center hole (11) is located in the center of the end template (1), the side holes (12) are distributed around the circumference of the center hole (11), the side holes (12) are threaded holes, a middle blocking block (111) is blocked in the center hole (11), and a side blocking block (121) is blocked in the side hole (12); the construction method comprises the following steps:
step S1: a plurality of prying bars (3) are rotatably arranged on one side of the end template (1) departing from the beam end (10), one ends of the prying bars (3) are respectively opposite to the side holes (12), and the other ends of the prying bars (3) are opposite to the middle holes (11);
step S2: removing the edge blocking block (121) in the edge hole (12), connecting a screwing block (4) into the edge hole (12) in a threaded manner, wherein the screwing block (4) is provided with a screwing head (41); an oil cylinder (5) is arranged on one side, away from a beam end (10), of the end template (1), the oil cylinder (5) is located outside the middle hole (11) and is opposite to the middle hole (11), and two ends of the oil cylinder (5) act on the end template (1) and the end part of the pry bar (3) respectively;
step S3: when the oil cylinder (5) is controlled to extend, the end part of the pry bar (3) departing from the oil cylinder (5) applies pressure to the screwing block (4), and a person rotates the screwing block (4) through the screwing head (41) to enable the screwing block (4) to move towards the beam end head (10);
step S4: the oil cylinder (5) is disassembled, the middle blocking block (111) in the middle hole (11) is taken out, then the oil cylinder (5) is installed back, the oil cylinder (5) penetrates through the middle hole (11), two ends of the oil cylinder (5) respectively act on the end part of the pry bar (3) and the beam end (10), and the oil cylinder (5) is controlled to extend until the end template (1) is separated from the beam end (10).
2. The method for demolding a mechanical force-transmission type beam end template according to claim 1, wherein the method comprises the following steps: a plurality of arch bars (2) are fixed on one side of the end template (1) departing from the beam end (10), the arch bars (2) are respectively positioned between each side hole (12) and the middle hole (11), the arch bars (2) are arranged in a bent mode, two ends of each arch bar (2) are fixed to the end template (1), and a crossing channel (21) is formed by surrounding the arch bars (2) and the end template (1); in the step S1, the pry bar (3) is passed through the passage (21) so that the arch bar (2) is positioned in the middle of the pry bar (3) in the length direction.
3. The method for demolding a mechanical force-transmission type beam end template according to claim 2, wherein the method comprises the following steps: in the step S1, the pressing plate (31) is taken, the middle of the pressing plate (31) is aligned to the arch bar (2), two ends of the pressing plate (31) are fixed on the pry bar (3) through bolts, and the arch bar (2) is limited between the pressing plate (31) and the pry bar (3).
4. The method for demolding a mechanical force-transmission type beam end template according to claim 2, wherein the method comprises the following steps: the arch bar (2) is a steel bar, and the arch bar (2) penetrates into the end template (1) and is welded and fixed with the end template (1).
5. The method for demolding a mechanical force-transmission type beam end formwork of claim 1, wherein the method comprises the following steps: in the step S2, a rigid backing plate (6) is arranged on one side, away from the beam end (10), of the end template (1), the backing plate (6) covers an orifice of the middle hole (11), and two plate surfaces of the backing plate (6) are respectively in contact with the end template (1) and the oil cylinder (5); and step S4, when the oil cylinder (5) is detached, the backing plate (6) is detached.
6. The method for demolding a mechanical force-transmission type beam end template according to claim 5, wherein the method comprises the following steps: well sprue (111) is the block rubber, the one side of backing plate (6) orientation mesopore (11) is fixed with cylindric cut section of thick bamboo (61), cut section of thick bamboo (61) can insert between the pore wall of sprue (111), mesopore (11).
7. The method for demolding a mechanical force-transmission type beam end template according to claim 1, wherein the method comprises the following steps: the part of the side blocking block (121) used for contacting the wall of the side hole (12) is made of rubber.
8. The method for demolding a mechanical force-transmission type beam end template according to claim 1, wherein the method comprises the following steps: the end template (1) is towards one side of roof beam end (10) and is seted up well groove (13) of intercommunication mesopore (11), mesopore (11) are located the tank bottom of well groove (13), the size of well groove (13) is greater than mesopore (11), well embedded medium plate (131) that is equipped with of groove (13), well groove (13) are filled completely in medium plate (131), the face of medium plate (131), end template (1) towards roof beam end (10) one side flushes.
9. The method for demolding a mechanical force-transmission type beam end formwork of claim 1, wherein the method comprises the following steps: end template (1) is towards one side of roof beam end (10) seted up side slot (14) of intercommunication side opening (12), side opening (12) are located the tank bottom of side slot (14), the size of side slot (14) is greater than side opening (12), the embedded sideboard (141) that is equipped with in side slot (14), sideboard (141) are filled side slot (14) completely, sideboard (141), end template (1) flush towards the face of roof beam end (10) one side.
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TW258772B (en) * 1993-12-10 1995-10-01 Okai Kk
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CN205012654U (en) * 2015-08-17 2016-02-03 中国建筑股份有限公司 Shedder and take shedder's template
CN206264117U (en) * 2016-12-08 2017-06-20 江苏月生达机械制造有限公司 The beam prefabricated equipment of T
CN107116674A (en) * 2017-06-30 2017-09-01 中交第航务工程局有限公司 A kind of jack form removal method of T-shaped beam monoblock type template
CN210453389U (en) * 2019-07-25 2020-05-05 无锡市贝尔特胶带有限公司 Intelligent driving belt stripper
CN211006347U (en) * 2019-08-23 2020-07-14 沧州晟实伟业机械设备制造有限公司 Bridge template separating mechanism
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CN112412004A (en) * 2020-11-27 2021-02-26 河南职业技术学院 Concrete formwork capable of being rapidly disassembled

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