CN110644788A - Method and device for controlling lifting of bottom die of cast-in-place wet joint of precast beam - Google Patents

Method and device for controlling lifting of bottom die of cast-in-place wet joint of precast beam Download PDF

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Publication number
CN110644788A
CN110644788A CN201911037836.8A CN201911037836A CN110644788A CN 110644788 A CN110644788 A CN 110644788A CN 201911037836 A CN201911037836 A CN 201911037836A CN 110644788 A CN110644788 A CN 110644788A
Authority
CN
China
Prior art keywords
cast
bottom die
wet joint
steel bar
lifting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911037836.8A
Other languages
Chinese (zh)
Inventor
陈宽
陈建光
刘帮
付皓
王应鹏
晏克珍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guizhou Investment And Construction Co Ltd
China Construction Fourth Division Guizhou Investment and Construction Co Ltd
Original Assignee
Guizhou Investment And Construction Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guizhou Investment And Construction Co Ltd filed Critical Guizhou Investment And Construction Co Ltd
Priority to CN201911037836.8A priority Critical patent/CN110644788A/en
Publication of CN110644788A publication Critical patent/CN110644788A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G19/00Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
    • E04G19/003Arrangements for stabilising the forms or for moving the forms from one place to another
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00Portable or mobile lifting or hauling appliances
    • B66D3/12Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G13/00Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
    • E04G13/04Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for lintels, beams, or transoms to be encased separately; Special tying or clamping means therefor

Abstract

The invention discloses a method and a device for controlling the lifting of a bottom die of a cast-in-place wet joint of a precast beam, wherein before the cast-in-place wet joint is poured between two adjacent precast beams, a temporary support is erected on the two precast beams in advance, a steel bar roller is arranged on the temporary support, an anti-falling lifting rope is connected to the steel bar roller, and one end of the anti-falling lifting rope penetrates through a PVC sleeve arranged between the two precast beams and then is connected with the bottom die below the two precast beams; therefore, pouring wet joints can be formed between the two precast beams, and after the pouring of the poured wet joints is completed, the lifting of the bottom die below the precast beams is controlled by shaking the rotating handle on the steel bar idler wheel. The invention can conveniently pull the bottom die of the cast-in-place wet joint, is convenient for operators to control the bottom die to fall, and can greatly reduce the labor capacity and shorten the construction period. The invention can be detached for repeated use, saves materials and reduces cost. And the falling speed of the bottom die can be manually controlled, and the safety of a construction site is effectively improved.

Description

Method and device for controlling lifting of bottom die of cast-in-place wet joint of precast beam
Technical Field
The invention relates to a method and a device for controlling the lifting of a bottom die of a cast-in-place wet joint of a precast beam, belonging to the technical field of building construction.
Background
In the prior art, when a template is erected or disassembled on a cast-in-place wet joint, the template is manually transferred through aloft work of workers. The safety accident that the template damages the lower form removal worker is easily caused in the process of erection or disassembly. Usually, the wet joint is long along the horizontal direction operation route, and the form removal personnel below the template needs to face upward to transfer the template, so that the problems of large operation difficulty, low operation efficiency and the like of the form removal transfer personnel are caused. Therefore, the existing technologies are not perfect enough and are expected to be further improved.
Disclosure of Invention
The invention aims to provide a method and a device for controlling the lifting of a bottom die of a cast-in-place wet joint of a precast beam, so that a template can be safely and reliably erected or disassembled, the operation efficiency can be improved, and the defects in the prior art are overcome.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to a method for controlling the lifting of a bottom die of a cast-in-place wet joint of a precast beam, which comprises the steps of building a temporary support on two adjacent precast beams in advance before the cast-in-place wet joint is poured between the two adjacent precast beams, installing a steel bar roller on the temporary support, connecting an anti-falling lifting rope on the steel bar roller, and connecting one end of the anti-falling lifting rope with the bottom die below the two precast beams after penetrating through a PVC sleeve arranged between the two precast beams; therefore, pouring wet joints can be formed between the two precast beams, and after the pouring of the poured wet joints is completed, the lifting of the bottom die below the precast beams is controlled by shaking the rotating handle on the steel bar idler wheel.
In the method for controlling the lifting of the bottom die of the cast-in-place wet joint of the precast beam, the top end of the PVC sleeve is higher than the concrete surface of the upper surfaces of the two precast beams by more than 5cm so as to prevent the concrete from flowing into the PVC sleeve to congeal the anti-falling lifting rope when the cast-in-place wet joint is poured.
The device for controlling the lifting of the bottom die of the cast-in-place wet joint of the precast beam comprises two adjacent precast beams, temporary supports are erected on the two adjacent precast beams, reinforcing steel bar rollers are mounted on the temporary supports, anti-falling lifting ropes are connected to the reinforcing steel bar rollers, one ends of the anti-falling lifting ropes are wound on the reinforcing steel bar rollers, and the other ends of the anti-falling lifting ropes penetrate through PVC sleeves pre-embedded in the cast-in-place wet joint between the two precast beams and then are connected with the bottom die below the cast-in-place wet joint; the lifting of the bottom die below the cast-in-place wet joint is controlled by shaking a rotating handle on the steel bar roller.
In the device for controlling the lifting of the bottom die of the cast-in-place wet joint of the precast beam, the temporary support comprises a pair of angle steel supporting legs; the tops of the pair of angle steel supporting legs are connected through end-sealed angle steel; a pair of steel pipe supporting legs which are symmetrical to the angle steel supporting legs in position are welded at the bottom of the end-sealing angle steel; a transverse connecting rod is arranged between the angle steel supporting leg and the steel pipe supporting leg; the upper part of the angle steel supporting leg is provided with a mounting hole for mounting a steel bar roller; rotating handles at two ends of the steel bar roller penetrate through the mounting holes to be rotatably connected with the angle steel supporting legs.
In the device, the anti-falling lifting rope at the lower end of the bottom die is connected with a template bottom support which can support the bottom die.
Due to the adoption of the technical scheme, compared with the prior art, the bottom die of the cast-in-place wet joint can be pulled, the lifting operation of the bottom die is carried out according to the construction requirement, the operation personnel can control the bottom die to fall or lift conveniently, the labor capacity can be greatly reduced, and the construction period can be shortened. The materials used in the invention can be detached for repeated use, thereby saving materials and reducing cost. The falling speed can be manually controlled by adopting the falling-preventing lifting rope falling template, and the safety of a construction site is effectively improved.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
fig. 2 is a front view of fig. 1.
The labels in the figures are: 1-rotating a handle, 2-steel bar rollers, 3-transverse connecting rods, 4-anti-falling lifting ropes, 5-end-capped angle steel, 6-angle steel supporting legs, 7-steel pipe supporting legs, 8-PVC sleeves, 9-bottom dies, 10-template bottom supports, 11-prefabricated beam flange plates and 12-cast-in-place wet seams.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The invention discloses a method for controlling the lifting of a bottom die of a cast-in-place wet joint of a precast beam, which is shown in figures 1 and 2: before a cast-in-place wet joint 12 is poured between two adjacent precast beams 11, a temporary support is erected on the two precast beams 11 in advance, a steel bar roller 2 is installed on the temporary support, meanwhile, an anti-falling lifting rope 4 is connected to the steel bar roller 2, and one end of the anti-falling lifting rope 4 penetrates through a PVC sleeve 8 arranged between the two precast beams 11 and then is connected with a bottom die 9 below the two precast beams 11; thus, a cast-in-place wet joint 12 can be poured between the two precast beams 11, and after the cast-in-place wet joint 12 is poured completely, the lifting of the bottom die 9 below the precast beams 11 is controlled by shaking the rotating handle 1 on the steel bar roller 2; during manufacturing, the top end of the PVC sleeve 8 is higher than the concrete surface of the upper surfaces of the two precast beams by more than 5cm, so that the falling-preventing lifting rope 4 can be prevented from being condensed when concrete flows into the PVC sleeve 8 when the cast-in-place wet joint 12 is poured.
The device for controlling the lifting of the bottom die of the cast-in-place wet joint of the precast beam is formed according to the method, and is shown in fig. 1 and 2: the device comprises two prefabricated beams 11 which are manufactured and adjacent, a temporary support is erected on the two adjacent prefabricated beams 11, a steel bar roller 2 is arranged on the temporary support, an anti-falling lifting rope 4 is connected to the steel bar roller 2, the anti-falling lifting rope 4 is wound on the steel bar roller 2, and the other end of the anti-falling lifting rope 4 penetrates through a cast-in-situ wet joint 12 between the two prefabricated beams 11 and is connected with a bottom die 9 below the cast-in-situ wet joint 12; the lifting of the bottom die of the cast-in-place wet joint of the precast beam is controlled by shaking the rotating handle 1 on the steel bar roller 2. The temporary support comprises a pair of angle steel legs 6; the tops of the pair of angle steel supporting legs 6 are connected through the end-sealed angle steel 5; a pair of steel pipe supporting legs 7 which are symmetrical to the angle steel supporting legs 6 in position are welded at the bottom of the end-sealed angle steel 5; a transverse connecting rod 3 is arranged between the angle steel supporting leg 6 and the steel pipe supporting leg 7; the upper part of the angle steel supporting leg 6 is provided with a mounting hole for mounting the steel bar roller 2; the rotating handles 1 at the two ends of the steel bar roller 2 penetrate through the mounting holes to be rotatably connected with the angle steel supporting legs 6. The anti-falling lifting rope 4 is provided with a template bottom support 10, and the bottom die 9 is supported by the template bottom support 10. The anti-falling lifting rope 4 penetrates through the section of the cast-in-place wet joint 12 to be provided with a PVC sleeve 8 so as to prevent concrete from being poured on the anti-falling lifting rope 4. The top end of the PVC sleeve 8 is higher than the concrete surface by 5cm, so that when concrete is prevented from pouring, the concrete flows into the PVC sleeve 8 and the anti-falling lifting rope 4 is solidified.
During the concrete implementation, twist grip 1 and reinforcing bar gyro wheel 2 welding together, and angle steel landing leg 6 and steel pipe landing leg 7 link to each other through transverse connecting rod 3 to adopt 5 fixed termination of termination angle steel to form temporary support. A rotating handle 1 and a steel bar roller 2 are sleeved on a temporary support, and a bottom die lifting device is combined by an anti-falling lifting rope 4, a PVC sleeve 8 and a template base 10.
When the formwork is erected and constructed, the rotating handle 1 and the steel bar roller 2 are erected and sleeved through the angle steel supporting leg 6 and the steel bar supporting leg 7; the transverse connecting rod 3, the angle steel supporting leg 6 and the steel bar supporting leg 7 are welded into a triangle; two support legs are combined and fixed to form a temporary support through end-sealing angle steel 5. The template bottom support 10 is connected with the steel bar roller 2 through the anti-falling lifting rope 4, the anti-falling lifting rope 4 is isolated from the cast-in-situ wet joint 12 through the PVC sleeve 8, and the cast-in-situ wet joint 12 is prevented from being solidified and locked. The template bottom support 10 supports the bottom die 9 to prevent the bottom die 9 from falling off during the die removal process to cause safety accidents. The rotating handle 1 is welded with the steel bar idler wheel 2, and the angle steel supporting leg 6 is drilled with a hole and is sleeved with a rotating part. The anti-falling lifting rope 4 is isolated by adopting the PVC sleeve 8 through one section in the cast-in-place wet joint 12, the top end of the PVC sleeve 8 is higher than the concrete surface by 5cm, and when concrete is prevented from being poured, the concrete flows into the PVC sleeve to fix the anti-falling lifting rope. Ensuring that the anti-falling lifting rope 4 smoothly passes through the cast-in-place wet joint 12 in the form removal process.
The PVC sleeve 8 can be arranged on the bottom die 9 in advance, the PVC sleeve 8 penetrates through the bottom die 9, and the top end of the PVC sleeve 8 is 5cm higher than the concrete surface. And when the strength of the cast-in-situ wet joint 12 reaches the form removal condition, the anti-falling lifting rope 4 penetrates through the PVC sleeve 8 to be connected with the bottom die 9 in a jacking mode under the bottom die 9, and the handle 1 is manually controlled to rotate when the bottom die support is removed, so that the bottom die 9 is safely lowered.
The invention has simple structure, low manufacturing cost, less material consumption and convenient later maintenance; the cast-in-place wet joint bottom die can be pulled in the using process, so that operators can conveniently control the bottom die to fall, the labor capacity can be greatly reduced, and the construction period can be shortened. The materials used in the invention can be detached for repeated use, thereby saving materials and reducing cost. The falling speed can be manually controlled by adopting the falling-preventing lifting rope falling template, and the safety of a construction site is improved.

Claims (5)

1. The method for controlling the lifting of the bottom die of the cast-in-place wet joint of the precast beam is characterized by comprising the following steps of: the method comprises the steps that before a cast-in-place wet joint is poured between two adjacent precast beams, temporary supports are erected on the two precast beams in advance, reinforcing steel bar rollers are installed on the temporary supports, anti-falling lifting ropes are connected to the reinforcing steel bar rollers, and one ends of the anti-falling lifting ropes penetrate through PVC sleeves arranged between the two precast beams and then are connected with bottom dies below the two precast beams; therefore, pouring wet joints can be formed between the two precast beams, and after the pouring of the poured wet joints is completed, the lifting of the bottom die below the precast beams is controlled by shaking the rotating handle on the steel bar idler wheel.
2. The method for controlling the lifting of the bottom die of the cast-in-place wet joint of the precast beam according to claim 1, wherein the method comprises the following steps: the top end of the PVC sleeve is higher than the concrete surface of the upper surfaces of the two precast beams by more than 5cm so as to prevent the concrete from flowing into the PVC sleeve to congeal the anti-falling lifting rope when the cast-in-place wet joint is poured.
3. The utility model provides a device that control cast-in-place wet seam die block of precast beam goes up and down, includes two adjacent precast beams (11), its characterized in that: a temporary support is erected on two adjacent precast beams (11), a steel bar roller (2) is installed on the temporary support, an anti-falling lifting rope (4) is connected to the steel bar roller (2), one end of the anti-falling lifting rope (4) is wound on the steel bar roller (2), and the other end of the anti-falling lifting rope (4) penetrates through a PVC sleeve (8) which is pre-embedded in a cast-in-situ wet joint (12) between the two precast beams (11) and then is connected with a bottom die (9) below the cast-in-situ wet joint (12); the lifting of the bottom die (9) below the cast-in-place wet joint (12) is controlled by shaking the rotating handle (1) on the steel bar roller (2).
4. The device for controlling the lifting of the bottom die of the cast-in-place wet joint of the precast beam according to claim 3, is characterized in that: the temporary support comprises a pair of angle steel supporting legs (6); the tops of the pair of angle steel supporting legs (6) are connected through end-sealed angle steel (5); a pair of steel pipe supporting legs (7) which are symmetrical to the angle steel supporting legs (6) in position are welded at the bottom of the end-sealing angle steel (5); a transverse connecting rod (3) is arranged between the angle steel supporting leg (6) and the steel pipe supporting leg (7); the upper part of the angle steel supporting leg (6) is provided with a mounting hole for mounting the steel bar roller (2); the rotating handles (1) at the two ends of the steel bar roller (2) penetrate through the mounting holes to be rotatably connected with the angle steel supporting legs (6).
5. The device for controlling the lifting of the bottom die of the cast-in-place wet joint of the precast beam according to claim 3, is characterized in that: the anti-falling lifting rope (4) at the lower end of the bottom die (9) is connected with a template bottom support (10) which can support the bottom die (9).
CN201911037836.8A 2019-10-29 2019-10-29 Method and device for controlling lifting of bottom die of cast-in-place wet joint of precast beam Pending CN110644788A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911037836.8A CN110644788A (en) 2019-10-29 2019-10-29 Method and device for controlling lifting of bottom die of cast-in-place wet joint of precast beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911037836.8A CN110644788A (en) 2019-10-29 2019-10-29 Method and device for controlling lifting of bottom die of cast-in-place wet joint of precast beam

Publications (1)

Publication Number Publication Date
CN110644788A true CN110644788A (en) 2020-01-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911037836.8A Pending CN110644788A (en) 2019-10-29 2019-10-29 Method and device for controlling lifting of bottom die of cast-in-place wet joint of precast beam

Country Status (1)

Country Link
CN (1) CN110644788A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113818715A (en) * 2021-09-27 2021-12-21 成都城投建筑工程有限公司 Filling device and filling method for remaining gaps of laminated slab

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113818715A (en) * 2021-09-27 2021-12-21 成都城投建筑工程有限公司 Filling device and filling method for remaining gaps of laminated slab

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