CN117188820B - Construction method for installing protection overhanging platform on outer layer of building and hoisting system - Google Patents
Construction method for installing protection overhanging platform on outer layer of building and hoisting system Download PDFInfo
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- CN117188820B CN117188820B CN202311453474.7A CN202311453474A CN117188820B CN 117188820 B CN117188820 B CN 117188820B CN 202311453474 A CN202311453474 A CN 202311453474A CN 117188820 B CN117188820 B CN 117188820B
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- 238000010276 construction Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000009435 building construction Methods 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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Abstract
The invention relates to the technical field of building old house reconstruction construction, in particular to a method for installing and constructing a protective overhanging platform on an outer layer of a building. 1) Transferring the overhanging platform to a building where the installation position is located; 2) Mounting left and right cantilever cranes on building main bodies at the left and right sides of a building facade construction hole; 3) The rotary arms of the left cantilever crane and the right cantilever crane rotate inwards of the building, the slings of the two cantilever cranes are connected to the left side and the right side of the cantilever platform, and the cantilever platform is hoisted; 4) The rotary arm of the first cantilever crane rotates outwards, the rotary arm of the second cantilever crane rotates inwards, the whole cantilever platform rotates, and one end of the cantilever platform is aligned to a construction hole; 5) The rotary arm of the first cantilever crane continuously rotates outwards, and the rotary arm of the second cantilever crane rotates outwards along with the first cantilever crane, so that the whole cantilever platform is moved out of a building construction hole; 6) Rotating the rotary arms of the two cantilever cranes to adjust the posture of the cantilever platform; 7) The overhanging platform is fixed to the design position of the building facade.
Description
Technical Field
The invention relates to the technical field of building old house reconstruction construction, in particular to a building outer layer protection overhanging platform installation construction method and a building outer elevation overhanging platform installation hoisting system designed for the method.
Background
In the reconstruction construction of a building, safety protection measures are required to be arranged on the outer vertical surface. The outer protection overhanging platform is used as the first part of the outer protection system.
In the prior art, a shaped protection platform of a factory is assembled and connected on the ground of a construction site to form a complete overhanging platform, the overhanging platform is hoisted to the installation position of the overhanging platform by a tower crane, and then the overhanging platform is fixedly connected with a building main body.
However, in modern building with writing, the outer vertical surface of the building is often provided with an arc surface or an outward protruding structure in order to pursue attractive appearance. When the overhanging platform is installed on the outer elevation below the protruding structures, the protruding structures can block the steel wire ropes of the tower crane. The cantilever platform is often wider, and cannot be directly constructed from a building construction hole.
Disclosure of Invention
The invention provides a construction method for installing a protective overhanging platform on an outer layer of a building.
The technical problems to be solved are as follows: under the condition that a tower crane cannot be used, how to quickly and effectively install the overhanging platform with the length larger than the width of the construction hole on the building outer elevation.
In order to solve the technical problems, the method for installing and constructing the outer protective overhanging platform of the building adopts the following scheme.
The method for installing and constructing the overhanging platform of the building outer elevation comprises the following steps:
1) Transferring the overhanging platform, and transferring the overhanging platform into a building where the installation position is located;
2) The hoisting system is installed, and a left cantilever crane and a right cantilever crane are installed on a building main body at the left side and the right side of a building facade construction hole;
3) The cantilever platform is lifted, the rotary arms of the left cantilever crane and the right cantilever crane rotate inwards of the building, slings of the two cantilever cranes are connected to the left side and the right side of the cantilever platform, and the cantilever platform is lifted;
4) The cantilever platform rotates, the rotary arm of the cantilever crane on the left side rotates outwards, the rotary arm of the cantilever crane on the right side rotates inwards, the whole cantilever platform rotates, and one end of the cantilever platform is aligned with a construction hole;
5) The cantilever platform moves outwards, the rotary arm of the cantilever crane on the left side continues to rotate outwards, and the rotary arm of the cantilever crane on the right side follows the cantilever crane on the left side to rotate outwards, so that the whole cantilever platform is moved out of a building construction hole;
6) The posture of the cantilever platform is adjusted, the rotary arms of the two cantilever cranes are rotated, and the posture of the cantilever platform is adjusted;
7) The overhanging platform is fixed and fixed to the design position of the building outer elevation.
Preferably, the cantilever crane is fixed on a building steel upright post or a building concrete structure post at the left side and the right side of a building construction hole.
Preferably, in the step 1) of transferring the overhanging platform, firstly, the parts of the overhanging platform are transferred into the floor where the installation position is located, and then the overhanging platform is assembled and fixed in the building.
Compared with the prior art, the method for installing and constructing the overhanging platform of the building outer elevation has the following beneficial effects: the cantilever platforms with the width larger than the width of the construction hole can be moved from the building to the outer elevation outside the construction hole by adopting the cooperation movement of the two cantilever cranes arranged at the two sides of the construction hole, and the cantilever platforms are temporarily fixed and then fixedly connected with the building main body. The whole process does not need the participation of a tower crane, the operation flow is carried out on the floor where the installation position of the overhanging platform is located, the construction flow is greatly simplified, and the construction progress is quickened. Especially in the case of inconvenient use of the tower crane.
The invention also provides a system for installing and hoisting the building outer facade overhanging platform according to the method for installing and constructing the building outer facade overhanging platform, which adopts the following scheme.
The cantilever crane comprises a mounting seat and a rotary arm, wherein the mounting seat is fixed on building upright posts on the left side and the right side of the building construction hole, the root of the rotary arm is rotatably mounted on the mounting seat, and a sling for hoisting is further arranged on the rotary arm.
Preferably, the pitching angle of the rotary arm is adjustable; the root of the rotary arm is rotationally connected to the mounting seat through a rotary shaft, the rotary shaft is hinged with the rotary arm, and the axis of the rotary shaft is vertically arranged; the building upright post is also provided with a pitching adjusting system for adjusting the pitching angle of the rotary arm; the pitch adjustment system includes a hoist system with an adjustment cable connected to a swivel arm.
Preferably, the angle between the swivel arm and the vertical is between 25 ° and 60 °.
Preferably, the tail end of the rotary arm is provided with a lifting winch, and the lifting winch hangs a sling downwards.
Preferably, a safety rope is connected between the rotary arm and the building main body, one end of the safety rope is connected to the tail end of the rotary arm, and the other end of the safety rope is fixed on the building main body.
Drawings
FIG. 1 is a schematic view showing the installation and construction method of the building outer elevation overhanging platform in the state from step 4) to step 5);
FIG. 2 is a schematic diagram after step 6) is completed;
fig. 3 is an enlarged view at a in fig. 2.
Reference numerals illustrate:
1-overhanging platforms;
2-cantilever crane, 2 a-mounting seat, 2 b-rotary arm, 2 c-rotating shaft, 2 d-adjusting steel cable and 2 e-sling;
3-building uprights;
4, constructing an opening;
5-inter-column secondary beam.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
In the present invention, unless otherwise indicated, terms of orientation such as "up, down, left, right" are used to refer generally to up, down, left, right as shown with reference to fig. 1; "inner and outer" means inner and outer relative to the contour of the respective parts themselves. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to solve the problem of how to quickly and effectively install the overhanging platform 1 with the length longer than the width of the construction hole 4 on the building outer elevation under the condition that the tower crane cannot be used. The invention provides a method for installing and constructing a cantilever platform of an outer facade of a building.
The method for installing and constructing the overhanging platform of the building outer vertical face is characterized by comprising the following steps of:
1) Transferring the overhanging platform 1, and transferring the overhanging platform 1 into a building where the installation position is located;
2) The hoisting system is installed, and a left cantilever crane 2 and a right cantilever crane 2 are installed on a building main body at the left side and the right side of a building facade construction hole 4;
3) The cantilever platform 1 is lifted, the rotary arms 2b of the left cantilever crane 2 and the right cantilever crane 2 rotate inwards of the building, slings 2e of the two cantilever cranes 2 are connected to the left side and the right side of the cantilever platform 1, and the cantilever platform 1 is lifted;
4) The cantilever platform 1 rotates, the rotary arm 2b of the cantilever crane 2 on the left side rotates outwards, the rotary arm 2b of the cantilever crane 2 on the right side rotates inwards, the whole cantilever platform 1 rotates, and one end of the cantilever platform 1 is aligned with the construction hole 4;
5) The cantilever platform 1 moves outwards, the rotary arm 2b of the cantilever crane 2 on the left side continues to rotate outwards, and the rotary arm 2b of the cantilever crane 2 on the right side follows the cantilever crane 2 on the left side to rotate outwards, so that the whole cantilever platform 1 moves out of the building construction hole 4;
6) The posture of the cantilever platform 1 is adjusted, the rotary arms 2b of the two cantilever cranes 2 are rotated, and the posture of the cantilever platform 1 is adjusted;
7) The overhanging platform 1 is fixed, and the overhanging platform 1 is fixed to the design position of the building outer facade.
In the construction of transferring the overhanging platform 1 in the step 1), firstly, steel structural members of the overhanging platform 1 manufactured in factories are transported to the site through transportation trucks. Other equipment is then used to transport the components into the building floor. For example, the components may be transported into the building using a tower crane on the unobstructed side of the building, or the components may be transported into the floors of the building using a building elevator or construction elevator. And then assembling, welding and fixing the components in the floors to form the complete overhanging platform 1.
The cantilever crane 2 is fixed on building steel columns or building concrete structural columns at the left side and the right side of a building construction hole 4. After step 6), an inter-column secondary beam 5 is fixedly installed between the building steel columns or building concrete structure columns where the two cantilever cranes 2 are located.
The rotation of the two cantilever cranes 2 of the hoisting system is preferably driven manually, so that the structure can be simplified, and the quick installation and the disassembly of the cantilever cranes 2 are convenient. During steps 4) to 6), the left cantilever crane 2 is first active, the right cantilever crane 2 is passive, the left cantilever crane 2 is turned from the side inside the building towards the outside of the building, during which the right cantilever crane 2 is first pushed to move in a more inward direction towards the building and then pulled by the left cantilever crane 2 to move towards the outside of the building. When half of the cantilever platform 1 is conveyed to the outside of the construction hole 4, the cantilever crane 2 on the right side is changed into active movement, and the cantilever crane 2 on the left side is changed into driven. The boom 2 on the right is turned outwards and then the boom 2 on the left is pushed to continue to turn outwards. After the cantilever platform 1 is completely positioned outside the building, the cantilever crane 2 on the right side continues to rotate outwards, and the cantilever crane 2 on the left side reversely rotates inwards at the end stage of the step 6).
The outward rotation and the inward rotation herein mean that the end of the swivel arm 2b of the cantilever crane 2 is moved in a direction away from the building, and then moved outward, and moved in a direction approaching the building, and then moved inward.
The invention further provides a mounting and hoisting system of the cantilever platform of the building outer elevation, wherein cantilever cranes 2 are respectively arranged at the left side and the right side of the building construction hole 4, each cantilever crane 2 comprises a mounting seat 2a and a rotary arm 2b, each mounting seat 2a is fixed on building upright posts 3 at the left side and the right side of the building construction hole 4, the root parts of the rotary arms 2b are rotatably arranged on the mounting seats 2a, and slings 2e for hoisting are further arranged on the rotary arms 2 b. The swing arm 2b is provided with a hoist or a hoist, and then the hoist or the hoist hangs down the slings 2e.
The pitching angle of the rotary arm 2b is adjustable; the root of the rotary arm 2b is rotatably connected to the mounting seat 2a through a rotary shaft 2c, the rotary shaft 2c is hinged with the rotary arm 2b, and the axis of the rotary shaft 2c is vertically arranged; the building upright post 3 is also provided with a pitching adjusting system for adjusting the pitching angle of the rotary arm 2 b; the pitch adjustment system comprises a hoisting system with an adjustment cable 2d connected to a swivel arm 2 b. The preferred hoisting system is a chain block or a hoist.
The angle between the swivel arm 2b and the vertical is 25-60 degrees.
A safety rope is connected between the rotary arm 2b and the building main body, one end of the safety rope is connected with the tail end of the rotary arm 2b, and the other end of the safety rope is fixed on the building main body.
The above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the design of the present invention.
Claims (7)
1. The method for installing and constructing the overhanging platform of the building outer vertical face is characterized by comprising the following steps of:
1) Transferring the overhanging platform (1), and transferring the overhanging platform (1) into a building where the installation position is located;
2) The hoisting system is installed, and a left cantilever crane (2) and a right cantilever crane (2) are installed on a building main body at the left side and the right side of a building facade construction hole (4);
3) The cantilever platform (1) is lifted, the rotary arms (2 b) of the left cantilever crane (2) and the right cantilever crane (2) rotate inwards in the building, slings (2 e) of the two cantilever cranes (2) are connected to the left side and the right side of the cantilever platform (1), and the cantilever platform (1) is lifted;
4) The cantilever platform (1) rotates, the rotary arm (2 b) of the cantilever crane (2) at the left side rotates outwards, the rotary arm (2 b) of the cantilever crane (2) at the right side rotates inwards from the driven mode, the whole cantilever platform (1) rotates, and one end of the cantilever platform (1) is aligned with the construction hole (4);
5) The cantilever platform (1) moves outwards, the rotary arm (2 b) of the cantilever crane (2) at the left side continuously rotates outwards, and the rotary arm (2 b) of the cantilever crane (2) at the right side rotates outwards along with the cantilever crane (2) at the left side, so that the whole cantilever platform (1) moves out of the building construction hole (4);
6) The posture of the cantilever platform (1) is adjusted, the rotary arms (2 b) of the two cantilever cranes (2) are rotated, and the posture of the cantilever platform (1) is adjusted;
7) The overhanging platform (1) is fixed, and the overhanging platform (1) is fixed at the design position of the outer facade of the building;
the hoisting system comprises a left cantilever crane (2) and a right cantilever crane (2), the cantilever crane (2) comprises a mounting seat (2 a) and a rotary arm (2 b), the mounting seat (2 a) is fixed on building upright posts (3) at the left side and the right side of a building construction hole (4), the root of the rotary arm (2 b) is rotatably mounted on the mounting seat (2 a), and a sling (2 e) for hoisting is further arranged on the rotary arm (2 b).
2. The method for installing and constructing the cantilever platform of the building facade according to claim 1, wherein the cantilever crane (2) is fixed on building steel upright posts or building concrete structural posts on the left side and the right side of a building construction hole (4).
3. The method for installing and constructing the overhanging platform of the building outer elevation according to claim 1, characterized in that in the step 1), the overhanging platform (1) is transferred, firstly, parts of the overhanging platform (1) are transported into floors where installation positions are located, and then the overhanging platform (1) is assembled and fixed in the building.
4. The method for installing and constructing the building facade cantilever platform according to claim 1, characterized in that the pitching angle of the revolving arm (2 b) is adjustable;
the root of the rotary arm (2 b) is rotationally connected to the mounting seat (2 a) through a rotary shaft (2 c), the rotary shaft (2 c) is hinged with the rotary arm (2 b), and the axis of the rotary shaft (2 c) is vertically arranged; the building upright post (3) is also provided with a pitching adjusting system for adjusting the pitching angle of the rotary arm (2 b);
the pitching adjusting system comprises a hoisting system, and an adjusting steel rope (2 d) of the hoisting system is connected to the rotary arm (2 b).
5. The method for installing and constructing the overhanging platform of the building facade according to claim 4, characterized in that the included angle between the revolving arm (2 b) and the vertical line is 25 degrees to 60 degrees.
6. The method for installing and constructing the overhanging platform of the building outer elevation according to claim 1, characterized in that the tail end of the rotary arm (2 b) is provided with a lifting winch, and the lifting winch hangs down a sling (2 e).
7. The method for installing and constructing the overhanging platform of the building outer elevation according to claim 1, characterized in that a safety rope is connected between the rotary arm (2 b) and the building main body, one end of the safety rope is connected to the tail end of the rotary arm (2 b), and the other end of the safety rope is fixed on the building main body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311453474.7A CN117188820B (en) | 2023-11-03 | 2023-11-03 | Construction method for installing protection overhanging platform on outer layer of building and hoisting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311453474.7A CN117188820B (en) | 2023-11-03 | 2023-11-03 | Construction method for installing protection overhanging platform on outer layer of building and hoisting system |
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| Publication Number | Publication Date |
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| CN117188820A CN117188820A (en) | 2023-12-08 |
| CN117188820B true CN117188820B (en) | 2024-04-12 |
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| CN202311453474.7A Active CN117188820B (en) | 2023-11-03 | 2023-11-03 | Construction method for installing protection overhanging platform on outer layer of building and hoisting system |
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| CN210396177U (en) * | 2019-06-24 | 2020-04-24 | 江苏苏阳建设有限公司 | Overhanging type discharging platform |
| CN111395730A (en) * | 2020-04-22 | 2020-07-10 | 深圳市三鑫科技发展有限公司 | Curtain wall construction system and method suitable for high-rise building with special-shaped giant columns |
| CN211961944U (en) * | 2019-12-31 | 2020-11-20 | 郭忠林 | Wall surface cleaning machine |
-
2023
- 2023-11-03 CN CN202311453474.7A patent/CN117188820B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000045230A (en) * | 1998-07-30 | 2000-02-15 | Taisei Corp | Closing method for closing part in pc bridge cantilever overhang erection work |
| CN204139609U (en) * | 2014-07-31 | 2015-02-04 | 中天建设集团有限公司天津分公司 | A kind of mounting structure of overhanging unloading platform |
| CN206581577U (en) * | 2017-03-17 | 2017-10-24 | 中建二局第二建筑工程有限公司 | Using housing construction builder's jack |
| CN210396177U (en) * | 2019-06-24 | 2020-04-24 | 江苏苏阳建设有限公司 | Overhanging type discharging platform |
| CN211961944U (en) * | 2019-12-31 | 2020-11-20 | 郭忠林 | Wall surface cleaning machine |
| CN111395730A (en) * | 2020-04-22 | 2020-07-10 | 深圳市三鑫科技发展有限公司 | Curtain wall construction system and method suitable for high-rise building with special-shaped giant columns |
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|---|
| 悬挑外脚手架在高层建筑中的设计与施工;蓝媚;张保志;叶茂;;广东土木与建筑(第10期);全文 * |
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| CN117188820A (en) | 2023-12-08 |
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