CN114922463B - Vibration-free cantilever plate block dismantling construction method - Google Patents
Vibration-free cantilever plate block dismantling construction method Download PDFInfo
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- CN114922463B CN114922463B CN202210586685.7A CN202210586685A CN114922463B CN 114922463 B CN114922463 B CN 114922463B CN 202210586685 A CN202210586685 A CN 202210586685A CN 114922463 B CN114922463 B CN 114922463B
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- splitting
- block
- cantilever plate
- group
- dismantling
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/08—Wrecking of buildings
- E04G23/081—Wrecking of buildings using hydrodemolition
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
- E04G21/3266—Safety nets
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/56—Reuse, recycling or recovery technologies of vehicles
Abstract
The invention discloses a vibration-free cantilever plate block dismantling construction method, which comprises the following steps: installing a protective net, protecting constructors, installing anti-falling components, dividing a cantilever plate, installing a rear embedded part, removing a first group, removing a second group, removing a third group, removing a subsequent group, beating Mao Xiubu, concentrating and transporting outwards and the like. The invention adopts the special water saw and the special water drill for the reinforced concrete structure to split and dismantle the overhead cantilever beam, thereby ensuring that the original structural beam is not damaged by impact and vibration, ensuring that the splitting block is safe and controllable, having low noise and no dust in the whole construction process and meeting the requirements of civilized construction.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a vibration-free cantilever plate block dismantling construction method.
Background
Before the position of the acoustic bridge is adjusted, the spectator hall needs to dismantle the cantilever plates in the position adjustment area of the acoustic bridge, the cantilever plates to be dismantled are the cantilever areas with the total height of about 20m, the areas do not have the conditions of erecting construction operation scaffolds and safety protection scaffolds, the roof steel structure is sealed after the construction is completed, the construction operation is difficult to be dismantled in the part, the vibrating type dismantling mode is mainly adopted at present, the original structural beams can be damaged, and the dismantled cantilever plate fragments fall from high altitude, so that the safety is poor.
Disclosure of Invention
The invention aims to provide a vibration-free cantilever plate block dismantling construction method, which adopts a special water saw and a special water drill for a reinforced concrete structure to carry out block dismantling on a high-altitude cantilever beam, so that the original structural beam is prevented from being damaged by impact and vibration, the dismantling blocks are safe and controllable, the noise is low, dust is free in the whole construction process, and the requirements of civilized construction are met.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a vibration-free cantilever plate block dismantling construction method comprises the following steps:
step one, installing a protective net: a safety protection pocket net is paved below the cantilever plate;
step two, constructor protection: the constructor wears a safety helmet and a safety belt, and a safety belt hanging point is arranged on the steel structure platform;
step three, installing a falling prevention component: a chain block is fixedly arranged on the steel structure platform above the cantilever plate;
dividing the cantilever plates and installing the rear embedded parts: dividing a split block on the top surface of the whole span cantilever plate, and mounting a rear embedded part on the split block; then the tail end of the chain block is arranged on the rear embedded part;
step five, the first group is dismantled: dismantling the middle area of the whole span cantilever plate by utilizing a water saw and a water drill;
step six, dismantling a second group: dismantling one side of the dismantled area of the first group by using a water saw and a water drill;
step seven, removing a third group: dismantling the other side of the dismantled area of the first group by using a water saw and a water drill;
step eight, subsequent dismantling: repeating the operations of the step six and the step seven until the whole span cantilever plate is dismantled;
step nine, beating Mao Xiubu: after the whole span of the cantilever plate is dismantled, manually picking and chiseling the residual dismantling allowance of the cantilever plate, roughening the cut surface and then repairing;
step ten, centralized outward transportation: and (5) carrying out centralized loading and outward transportation of split blocks of the temporary slag soil storage point.
Preferably, the first group is dismantled, and the water saw is used for transversely cutting the first knife and the second knife in the middle area of the whole cross-over cantilever plate, wherein the cutting direction is from outside to inside.
Preferably, a water drill is selected between the first cutter cutting seam and the second cutter cutting seam to sequentially carry out longitudinal punching and splitting, the splitting direction is not limited, after the longitudinal splitting is finished, the splitting block is moved to the ground, then the tail end of the chain block and the rear embedded part are removed, and the chain block is conveyed to a temporary slag soil storage point.
Preferably, the second group is split, the chain is pulled to the position of the cantilever plate, the tail end of the chain is arranged on the block to be split on one side of the removed area of the first group, and the third knife is used for transversely cutting, and the cutting direction is from outside to inside.
Preferably, a water drill is selected between the first cutter cutting seam and the third cutter cutting seam or between the second cutter cutting seam and the third cutter cutting seam to sequentially carry out longitudinal punching and splitting, the splitting direction is not limited, after the longitudinal splitting is finished, the splitting block is moved to the ground, and then the tail end of the chain block and the rear embedded part are removed and conveyed to a temporary residue soil storage point.
Preferably, the third group is split, the chain is pulled to the position of the cantilever plate, the tail end of the chain is arranged on the block to be split at the other side of the removed area of the first group, and the fourth cutter is used for transversely cutting, and the cutting direction is from outside to inside.
Preferably, a water drill is selected between the second cutter cutting seam and the fourth cutter cutting seam or between the first cutter cutting seam and the fourth cutter cutting seam to sequentially carry out longitudinal punching and splitting, the splitting direction is not limited, after the longitudinal splitting is finished, the splitting block is moved to the ground, and then the tail end of the chain block and the rear embedded part are removed and conveyed to a temporary residue soil storage point.
Preferably, the tail end of the chain block is provided with a joint, and the longitudinal section of the joint is omega-shaped and is provided with a mounting hole.
Preferably, the rear embedded part comprises an embedded part steel plate arranged on the splitting block and an expansion anchor bolt arranged in the splitting block.
Preferably, the expansion anchor bolts penetrate through the connecting holes in the embedded part steel plates and the mounting holes in the joints, and are fixedly connected with the expansion anchor bolts, the embedded part steel plates and the joints through nuts.
Compared with the prior art, the invention divides the whole span cantilever plate into a plurality of split blocks, the split blocks adopt the water saw and the water drill to split the cantilever plate in a controllable safety range of manual disassembly and transportation, the original structural beam is ensured not to be damaged by impact and vibration, the chain is fixedly arranged on the split blocks during the disassembly, the split blocks are prevented from falling during the construction operation, the noise is low, dust is not raised in the whole construction process, the requirements of civilized construction are met, and the practicability is strong.
Drawings
Fig. 1 is a schematic diagram of a first group of split structures according to the present invention.
FIG. 2 is a schematic diagram of a second embodiment of the second set of splits according to the present invention.
FIG. 3 is a schematic structural diagram of a third embodiment of the third group splitting of the present invention.
FIG. 4 is a schematic view of a hoisting structure of a split block according to the present invention.
In the figure: 1. a cantilever plate; 2. chain block; 4. Splitting the blocks; 5. a first knife slit; 6. a second knife slit; 7. a third knife slit; 8. a fourth knife slit; 9. a joint; 10. a buried piece steel plate; 11. expansion anchor bolts; 12. a beam; 13. the area has been removed.
Detailed Description
The invention is further described below with reference to the accompanying drawings, and in order to achieve the above purpose, the invention adopts the following technical scheme:
the vibration-free cantilever plate block dismantling construction method as shown in fig. 1, 2, 3 and 4 comprises the following steps:
step one, installing a protective net: a safety protection net is laid below the cantilever plate 1, and is formed by overlapping a layer of large-eye net and a layer of dense-eye net, so that scattered slag soil and machine parts are prevented from falling during construction.
Step two, constructor protection: the constructor wears a safety helmet and a safety belt, and a safety belt hanging point is arranged on the steel structure platform;
step three, installing a falling prevention component: the cantilever plate 1 is arranged on the beam 12, and the chain block 2 is fixedly arranged on a steel structure platform above the cantilever plate 1;
dividing the cantilever plate 1 and installing a rear embedded part: dividing a splitting block 4 on the top surface of the whole span cantilever plate 1, installing a rear embedded part on the splitting block 4, wherein the rear embedded part comprises an embedded part steel plate 10 installed on the splitting block 4 and an expansion anchor bolt 11 installed in the splitting block 4, the tail end of a chain 2 is provided with a joint 9 with an omega-shaped longitudinal section and provided with a mounting hole, the expansion anchor bolt 11 penetrates through a connecting hole on the embedded part steel plate 10 and a mounting hole on the joint 9 and is fixedly connected through a nut, and in one specific embodiment, the size (length, width, height, and height) of the splitting block 4 is 300mm, 350mm, 180mm, the weight of the single block is about 47kg, and the single block is manually dismounted and carried in a controllable safety range;
step five, splitting in a first group: the tail end of the chain 2 is arranged on a splitting block 4 of the middle area of the whole span cantilever plate 1, and a water saw is used for transversely cutting the middle area of the whole span cantilever plate 1 by a first cutter and a second cutter, wherein the cutting direction is from outside to inside;
and a water drill is selected between the first cutter cutting seam 5 and the second cutter cutting seam 6 to sequentially carry out longitudinal punching and splitting, the splitting direction is not limited, after the longitudinal splitting is finished, the splitting block 4 is moved to the ground, the tail end of the chain 2 and the rear embedded part are removed, and the chain is conveyed to a temporary slag soil storage point.
Step six, splitting in a second group: pulling the chain 2 to the position of the cantilever plate 1, and arranging the tail end of the chain 2 on the block 4 to be split on one side of the first group of removed areas 13, and performing transverse cutting of a third cutter, wherein the cutting direction is from outside to inside;
a water drill is selected between the first cutter cutting seam 5 and the third cutter cutting seam 7 or between the second cutter cutting seam 6 and the third cutter cutting seam 7 to sequentially carry out longitudinal punching and splitting, the splitting direction is not limited, after the longitudinal splitting is finished, the splitting block 4 is moved to the ground, the tail end of the chain 2 and a rear embedded part are removed, and the chain is conveyed to a temporary residue soil storage point, in a specific embodiment, the water drill is selected between the first cutter cutting seam 5 and the third cutter cutting seam 7 to carry out longitudinal punching and splitting, and the splitting direction is from the first cutter cutting seam 5 to the third cutter cutting seam 7;
step seven, splitting in a third group: pulling the chain 2 to the position of the cantilever plate 1, and arranging the tail end of the chain 2 on the block 4 to be split on the other side of the first group of removed areas 13, and performing transverse cutting of a fourth cutter in the direction from outside to inside;
a water drill is selected between the second cutter cutting seam 6 and the fourth cutter cutting seam 8 or between the first cutter cutting seam 5 and the fourth cutter cutting seam 8 to sequentially carry out longitudinal punching and splitting, the splitting direction is not limited, after the longitudinal splitting is finished, the splitting block 4 is moved to the ground, the tail end of the chain 2 and a rear embedded part are removed, and the chain is conveyed to a temporary residue soil storage point, in a specific embodiment, the water drill is selected between the second cutter cutting seam 6 and the fourth cutter cutting seam 8 to carry out longitudinal punching and splitting, and the splitting direction is from the second cutter cutting seam 6 to the fourth cutter cutting seam 8;
step eight, subsequent dismantling: repeating the operations of the step six and the step seven until the whole span cantilever plate 1 is completely dismantled according to the sequence from the middle to the two sides;
step nine, beating Mao Xiubu: after the whole span of the cantilever plate 1 is dismantled, manually removing the residual dismantling allowance of the cantilever plate 1, roughening the cut surface, and then repairing by adopting high-strength modified bi-component polymer mortar, wherein the strength grade is not less than C35, and the repairing surface is required to be smooth;
step ten, centralized outward transportation: the split blocks 4 of the temporary slag soil storage point are loaded in a centralized way for external transportation and digestion.
The above embodiments are only a few descriptions of the inventive concept and implementation, and are not limited thereto, and the technical solutions without substantial transformation remain within the scope of protection under the inventive concept.
Claims (4)
1. The vibration-free cantilever plate block dismantling construction method is characterized by comprising the following steps of:
step one, installing a protective net: a safety protection pocket net is paved below the cantilever plate (1);
step two, constructor protection: the constructor wears a safety helmet and a safety belt, and a safety belt hanging point is arranged on the steel structure platform;
step three, installing a falling prevention component: a chain block (2) is fixedly arranged on the steel structure platform above the cantilever plate (1);
dividing the cantilever plates (1) and installing rear embedded parts: dividing the top surface of the whole span cantilever plate (1) into split blocks (4) with controllable safety ranges for manual disassembly and transportation, and installing a rear embedded part on the split blocks (4); then the tail end of the chain block (2) is arranged on the rear embedded part;
step five, the first group is dismantled: dismantling the middle area of the whole span cantilever plate (1) by utilizing a water saw and a water drill;
the first group is dismantled, a water saw is used for carrying out transverse cutting on the first knife and the second knife on the middle area of the whole cross cantilever plate (1), and the cutting direction is from outside to inside; a water drill is selected between the first cutter cutting seam (5) and the second cutter cutting seam (6) to sequentially carry out longitudinal punching and splitting, the splitting direction is not limited, after the longitudinal splitting is finished, the splitting block (4) is moved to the ground, and then the tail end of the chain block (2) and the rear embedded part are removed and conveyed to a temporary residue soil storage point;
step six, dismantling a second group: dismantling one side of the dismantled area (13) of the first group by using a water saw and a water drill;
the second group is split, the chain (2) is lifted to the position of the cantilever plate (1), the tail end of the chain (2) is arranged on a block (4) to be split at one side of a dismantled area (13) of the first group, and a third cutter is used for transversely cutting, wherein the cutting direction is from outside to inside; a water drill is selected between the first cutter cutting seam (5) and the third cutter cutting seam (7) or between the second cutter cutting seam (6) and the third cutter cutting seam (7) to sequentially carry out longitudinal punching and splitting, the splitting direction is not limited, after the longitudinal splitting is finished, the splitting block (4) is moved to the ground, then the tail end of the chain block (2) and the rear embedded part are removed, and the temporary slag soil storage point is carried;
step seven, removing a third group: dismantling the other side of the dismantled area (13) of the first group by using a water saw and a water drill;
the third group is split, the chain (2) is pulled up to the position of the cantilever plate (1), the tail end of the chain (2) is arranged on a block (4) to be split at the other side of the first group of dismantled areas (13), and the fourth cutter is used for transversely cutting, wherein the cutting direction is from outside to inside; a water drill is selected between the second cutter cutting seam (6) and the fourth cutter cutting seam (8) or between the first cutter cutting seam (5) and the fourth cutter cutting seam (8) to sequentially carry out longitudinal punching and splitting, the splitting direction is not limited, after the longitudinal splitting is finished, the splitting block (4) is moved to the ground, then the tail end of the chain block (2) and the rear embedded part are removed, and the chain block is conveyed to a temporary slag soil storage point;
step eight, subsequent dismantling: repeating the operations of the step six and the step seven until the whole span cantilever plate (1) is dismantled;
step nine, beating Mao Xiubu: after the whole span cantilever plate (1) is dismantled, manually removing the residual dismantling allowance of the drilling cantilever plate (1), roughening the cut surface and then repairing;
step ten, centralized outward transportation: the split blocks (4) of the temporary slag soil storage point are loaded in a centralized way for external transportation and digestion.
2. The vibration-free cantilever plate block dismantling construction method according to claim 1, wherein a joint (9) is arranged at the tail end of the chain block (2), and the joint (9) is omega-shaped in longitudinal section and provided with a mounting hole.
3. The vibration-free cantilever plate block dismantling construction method according to claim 1, wherein the rear embedded part comprises an embedded part steel plate (10) arranged on the splitting block (4) and an expansion anchor bolt (11) arranged in the splitting block (4).
4. The vibration-free cantilever plate block dismantling construction method according to claim 3, wherein the expansion anchor bolts (11) penetrate through the connecting holes in the embedded part steel plates (10) and the mounting holes in the joints (9), and the expansion anchor bolts (11), the embedded part steel plates (10) and the joints (9) are fixedly connected through nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210586685.7A CN114922463B (en) | 2022-05-27 | 2022-05-27 | Vibration-free cantilever plate block dismantling construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210586685.7A CN114922463B (en) | 2022-05-27 | 2022-05-27 | Vibration-free cantilever plate block dismantling construction method |
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| Publication Number | Publication Date |
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| CN114922463A CN114922463A (en) | 2022-08-19 |
| CN114922463B true CN114922463B (en) | 2023-09-29 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017193887A (en) * | 2016-04-21 | 2017-10-26 | 株式会社奥村組 | Demolition and renovation method of concrete wall |
| CN108678420A (en) * | 2018-05-29 | 2018-10-19 | 深圳市工勘岩土集团有限公司 | A kind of basement bottom board Demolition Construction method |
| CN109972858A (en) * | 2019-02-28 | 2019-07-05 | 广东天盛装饰消防工程有限公司 | Shockproof concrete building structures method for dismounting |
| CN111395799A (en) * | 2020-03-25 | 2020-07-10 | 中国一冶集团有限公司 | Low-disturbance basement communication port outer wall efficient dismantling construction method |
| CN114278114A (en) * | 2022-02-09 | 2022-04-05 | 中建八局深圳科创发展有限公司 | Method for dismantling multi-layer continuous cantilever plate outside high-rise building |
-
2022
- 2022-05-27 CN CN202210586685.7A patent/CN114922463B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017193887A (en) * | 2016-04-21 | 2017-10-26 | 株式会社奥村組 | Demolition and renovation method of concrete wall |
| CN108678420A (en) * | 2018-05-29 | 2018-10-19 | 深圳市工勘岩土集团有限公司 | A kind of basement bottom board Demolition Construction method |
| CN109972858A (en) * | 2019-02-28 | 2019-07-05 | 广东天盛装饰消防工程有限公司 | Shockproof concrete building structures method for dismounting |
| CN111395799A (en) * | 2020-03-25 | 2020-07-10 | 中国一冶集团有限公司 | Low-disturbance basement communication port outer wall efficient dismantling construction method |
| CN114278114A (en) * | 2022-02-09 | 2022-04-05 | 中建八局深圳科创发展有限公司 | Method for dismantling multi-layer continuous cantilever plate outside high-rise building |
Non-Patent Citations (1)
| Title |
|---|
| 曲勇等.改造工程塔楼顶部旋转餐厅拆除施工方法研究与实践.城市建设理论研究.2018,(第2018年第21期期),第89-90页. * |
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