CN1048066C - Method and apparatus for integrally self-lifting scaffold - Google Patents
Method and apparatus for integrally self-lifting scaffold Download PDFInfo
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- CN1048066C CN1048066C CN 93112641 CN93112641A CN1048066C CN 1048066 C CN1048066 C CN 1048066C CN 93112641 CN93112641 CN 93112641 CN 93112641 A CN93112641 A CN 93112641A CN 1048066 C CN1048066 C CN 1048066C
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- 238000009415 formwork Methods 0.000 claims description 10
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Abstract
The present invention relates to an internal cylinder and outer frame work integrally self-lifting construction method for the concrete construction of high or high-rise buildings or large and medium sized tower structures and a device thereof. The construction method comprises the following steps: a prefab bearing hole is arranged on a wall; an external frame work is lifted; an internal cylinder is inserted; an integral construction platform is built; lifting equipment is installed; an internal scaffold and an external scaffold are suspended; a lifting basket is enclosed; a combined shuttering is installed; the internal cylinder and the external frame work are alternatively lifted to lift up the integral construction platform integrally and carry out concrete construction. The device comprises the internal cylinder, the external frame work, the internal scaffold, the external scaffold, the lifting basket, a lifting mechanism, a lower supporting mechanism and a shuttering system.
Description
The present invention relates to a construction method for high-rise or super high-rise building and an apparatus for implementing the same, and more particularly, to a construction method and an apparatus for an integral self-elevating external scaffolding formwork system of an internal cylinder external frame type using a lower support.
At present, there are many methods and devices for constructing high-rise or super high-rise buildings at home and abroad. Chinese patent CN1041199A discloses a construction method using an external scaffold integral lifting system: japanese patent No. 59-15166, China journal, "construction technology" No. 4 of 1992 and "construction of building" No. 1 of 1991 disclose construction methods and devices for slip-form, reverse-form and creeping formwork used in the construction of TV towers.
However, the prior art building construction methods and devices have some disadvantages. For example, the slip-form or reverse-form construction method is used for high-rise building construction, and although the construction speed is high, continuous overlapping operation of each process is required, so that factors affecting construction quality and safety are more. The climbing formwork construction method is used for high-rise and super high-rise shear structure construction, and the climbing frames and the templates are fixed and alternately lifted to achieve the purpose of pouring and tamping concrete of a wall body, so that the whole construction is difficult to meet the construction of connecting beams, central cylinders and other parts, and the single climbing frame is lifted one by one and positioned without super high construction safety; the template hoisting point can not bear the heavy load for lifting, the climbing frame has small bearing capacity, and the cylinder body is not provided with a rigid framework, so that the large-area integral construction of the heavy load can not be met. In addition, the casting and tamping ranges of the construction methods are small (generally within 2.5 meters), the stress mode generally adopts an upper bearing mode (as described in Chinese patent CN1041199A and construction technology No. 4 of 92 years), the integrity, the surface color consistency and smoothness, the vertical precision and the construction speed of concrete pouring cannot meet the high-standard technological level requirements, and the construction methods are particularly difficult to adapt to the high-difficulty and high-standard engineering requirements of a multi-cylinder ultrahigh giant space frame structure such as Shanghai television tower 'eastern bright bead' engineering. Although chinese patents CN1042393A, CN2129306Y and CN2079205U relate to an underslung type force-bearing manner, they are only suitable for relatively simple low-rise buildings, and their structures and supporting manners are not suitable for the construction of super high-rise buildings.
Aiming at the defects of various building construction methods, the invention aims to provide a construction method which can adapt to pouring of complex structures such as a plurality of cylinders and the like, further improves the construction quality of high-rise or super high-rise buildings, has high construction speed, and is convenient, safe and reliable, and a device adopted by the construction method.
The above object of the present invention is achieved by a construction method and a device for an integral self-elevating external scaffold formwork system using a lower-supported inner tube outer frame. This method comprises the steps of:
1. reserving a bearing hole on the wall body of the poured concrete cylinder wall;
2. hoisting a plurality of supporting outer frameworks one by one in place in the concrete wall of the building, and seating supporting heavy pins in the bearing openings;
3. inserting each inner cylinder body into the center of each outer framework; the inner cylinder body can move up and down through a bearing seat at the lower end of the inner cylinder body and is temporarily fixed in the reserved bearing hole;
4. the integral construction steel platform is partitioned according to design and is positioned on the top bearing beam of each outer framework and then connected into an integral construction steel platform, and the construction platform consists of a sub-platform and a beam-connecting annular sub-platform of a cylinder;
5. a lifting device and a screw rod suspender are arranged at the upper end of the inner cylinder; the lead screw suspender is detachably connected with the bearing beam of the outer framework through the extension bar;
6. mounting and suspending an inner and outer hitching leg and a closed hanging rail on the steel platform;
7. installing a combined construction steel large mould for pouring building concrete, wherein the steel large mould comprises an inner template and an outer template;
8. the inner cylinder and the outer frame are respectively and alternately lifted by taking the outer frame and the inner cylinder as fulcrums, so that the whole steel platform is lifted and then positioned and fixed;
9. hoisting and binding steel bars;
10. fixing and correcting the pouring template;
11. and (5) pouring and tamping the concrete wall.
According to the invention, the device for implementing the construction method of the integral self-elevating type external scaffold template system of the lower bearing type inner cylinder outer framework comprises the following steps:
the integral construction steel platform consists of sub-platforms surrounding a tower body structure or a cylindrical building structure and sub-platforms connected with beams, each sub-platform consists of secondary beams and is connected into an integral frame through a main girder, and the frame is provided with an operation plate;
the inner cylinders are used for lifting the construction steel platform and used as bearing pillars, lifting equipment and a screw rod hanging rod are arranged at the upper end of each inner cylinder, a bearing seat and a rotary bearing pin are arranged at the lower end of each inner cylinder, and the rotary bearing pin can slide into and be placed in a reserved bearing hole of the concrete wall;
the upper end of the outer framework is provided with a connecting extension bar assembling and disassembling stress hoisting point structure, the lower part of the outer framework is provided with a supporting seat, a lateral bearing pin and at least two telescopic limiting roller wheel devices on the periphery, the limiting roller wheels can be turned into and positioned in the reserved bearing holes of the wall, and the outer framework is also provided with a limiting sleeve for limiting the inner barrel; the integral steel platform is detachably supported on the outer framework and can be lifted along with the outer framework;
the inner and outer scaffold and the operation hanging fence are arranged around the integral steel platform; and
and the formworks are used for connecting the cast wall and the connecting parts of the cast wall.
The integral self-elevating type template body system device of the lower bearing type inner cylinder outer framework is further characterized in that:
the main girder of the integral steel platform is of a well type truss structure, and the central area of the main girder forms a closed triangular girder;
the secondary beam is a ring beam arranged along the building structure and is used as a lifting point for lifting various internal and external templates or partition wall templates;
the inner and outer scaffold is hung on the ring beam, and the operation hanging fence is arranged outside the outer scaffold in a totally-enclosed manner along the periphery of the ring beam;
the secondary beam at the connecting beam part of the steel platform has a movable connection mode;
the integral steel platform is placed on the bearing beam of the outer framework through the truss main girder;
the closed hanging fence arranged outside the outer scaffold of the enclosure is a steel wire mesh sheet; the bottom of the outer scaffold is provided with a telescopic flashboard which can be contacted with the outer wall of the building structure body; the inner and outer scaffold at the periphery of the building structure are completely communicated up and down so as to facilitate the construction of the beam connecting annular plate and the middle cylinder part;
the lifting equipment is an electric plate lifting machine, a hydraulic jack or an electric winch.
The method and the device have the following advantages:
firstly, the quality in the construction process is easy to control. Because the lower bearing type inner cylinder outer frame stressed on the lower concrete wall body, the lifting platform and the template system combined structure are adopted, the whole process is different from a slip form construction mode, and the phenomenon that all working procedures are crossed and mixed at the same time is avoided; the installation of the steel bar formwork and the concrete pouring belong to front and back procedures, and sufficient time can be provided for checking the quality among the procedures, so that the whole construction quality can be ensured.
And secondly, during the construction of the ultra-high altitude, the safety is improved. In the whole high-altitude construction area of the cylinder, the integral steel construction platform is arranged to suspend the inside and outside closed type scaffold and the hanging fence, so that construction operators feel safe psychologically during the operation at the ultrahigh altitude; meanwhile, the full-closed type barrel can prevent any object from falling, is beneficial to the cross construction of the barrel body, can ensure the safety and can avoid the accident of personal injury caused by the falling of any object.
Thirdly, the construction speed is fast and the labor intensity is low. Because the whole construction technology adopts the mechanical lifting steel platform to suspend the closed scaffold and the shaping combined template, the construction speed is greatly improved, for example, only 2.5 to 3 days are consumed for constructing a cylinder body with the height of 3.214 meters; when the central construction of the connecting beam and the building structure is carried out, the shaping template is only required to be adjusted, the construction process is simple, the labor intensity of construction operators is low, the construction operation technology is easy to master, and common operators can take the job.
Fourthly, the economic benefit is better. The integral self-elevating template system with the inner cylinder and the outer frame is adopted, compared with a slip form, the steel used can be greatly saved, and the whole template can be continuously recycled and used and still is intact; because the construction speed is high and the engineering quality is ensured, the economic effect is more obvious.
Fifthly, the engineering construction adaptability is strong. The whole steel platform is supported in the wall hole at the lower part of the structure through the outer framework and the lower part of the inner cylinder body, so the bearing capacity is large, the construction of a complex multi-cylinder super high-rise structure can be particularly adapted, and the poured concrete structure is effectively ensured to have excellent integrity, consistent surface color and luster, smooth surface and extremely high vertical precision.
The features and advantages of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a plan view of a platform and a casting structure according to an embodiment of the present invention, wherein the casting structure is composed of a three-cylinder body and a coupling beam;
FIG. 2 is a plan view of the structure of the inner and outer scaffold surrounding one of the straight cylinders and a portion of the coupling beam;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIGS. 4(a) to 4(g) are flowcharts of the respective construction processes of the present invention schematically represented by an inner tubular body outer frame and a part of a platform structure in a wall body; wherein,
FIG. 4(a) is a schematic view showing a process of lifting an inner cylinder and elongating lead screws;
FIG. 4(b) is a schematic view of the steel platform and the outer frame being lifted and fixed by the plate lifter;
FIG. 4(c) is a schematic diagram showing the screw lowered and the extension bar removed and then readied to raise the steel platform;
FIG. 4(d) is a schematic view showing the plate lifter after lifting the steel platform and the outer frame again;
FIG. 4(e) is a schematic view showing the lead screw lowered and the binding bars lifted;
FIG. 4(f) is a schematic view showing that the template is corrected and fixed after being lifted;
fig. 4(g) is a schematic view showing a concrete placing step.
As shown in fig. 1, a specific embodiment of the method and apparatus for constructing an external frame integral self-elevating external scaffold template system of the present invention is applied to the "east bright pearl" tv tower engineering in shanghai, in which the main tower body is a frame structure composed of three straight cylinders and connecting beams.
Referring to the attached drawings, the construction steps of the method of the invention are as follows:
reserving a bearing hole 22 (shown in figure 4a) on the poured concrete cylinder wall 21;
dividing 12 supporting outer frameworks 4 into 3 groups, namely 4 in each group, hoisting the supporting outer frameworks one by using a tower crane, and positioning supporting bearing pins 8 in the bearing holes 22 of the concrete wall body of the inner partition wall of the main tower body;
the integral construction steel platform 35 is positioned on the top bearing beams 24 of 12 outer frameworks 4 in the three straight cylinders 21 and 14 of the main tower body in a partitioning manner according to the design, and is welded into an integral construction platform after being accurately positioned;
installing the inner cylinders 3, inserting each inner cylinder into the center of the outer frame 4;
a lifter 1 is arranged at the upper end of the inner cylinder 3;
the steel platform 35 is provided with suspended inner and outer hitches 16, 17 and 18 and closed hanging fences 19 and 25;
the combined construction steel large moulds 11 and 12 are provided with the cylinder bodies 14 and 21 and the connecting beam 15;
hanging and binding rebar 26;
the concrete 27 is poured and pounded.
The specific construction flow is shown in fig. 4(a) to 4 (g):
as shown in fig. 4(a), the integral steel platform lifts the inner cylinder, in which the inner cylinder is lifted to a certain height by a hand-operated hoist 36, and as shown in the figure, lifted from the dotted line position to a linear position, and supported in the bearing hole 22 of the cylinder wall 21(14) by the bearing pin 10, and the screw rod 2 is connected with the extension rod 6; fig. 4(b) shows the plate lifter 1 lifting the steel platform 35 and the outer frame 4, and then fixing the steel platform 35 and the outer frame 4; FIG. 4(c) shows the extension bar 6 removed, the screw 2 lowered, and the steel platform 35 ready to be raised again; FIG. 4(d) shows the plate lifter 1 lifting the steel platform 35 and the outer frame 4a certain height after releasing the fixing of the steel platform 35 and the outer frame 4; fig. 4(e) shows the screw 2 now lowered and then the bars 26 lifted and bound; fig. 4(f) shows the templates 11, 12 lifted by the chain block 36 and then fixed for alignment; fig. 4(g) shows a cast concrete wall 27.
As shown in the drawings, the internal cylinder external frame integral self-elevating device of the embodiment of the invention comprises:
an integral construction steel platform consisting of a sub-platform 28 surrounding the main tower three-straight cylinder 14 and a sub-platform 29 of three connecting beams 15, wherein each sub-platform 28, 29 consists of arc-shaped or straight-line-shaped secondary beams 13, is connected into an integral frame through a main girder 5, and an anti-skid operation plate 30 is laid on the platform frame;
12 inner cylinders 3 for lifting the construction steel platform 35 and the bearing support, wherein the upper ends of the inner cylinders are provided with an electric plate lifting machine 1 and a screw rod suspender 2, the lower ends of the inner cylinders are provided with a bearing seat 31 and a rotary bearing pin 10 on the periphery of the bearing seat 31, and the rotary bearing pin can be placed in a reserved bearing hole 22 of the concrete cylinder wall 27 and is used as a temporary supporting point when the outer framework 4 and the steel platform 35 are lifted;
12 outer frames 4 arranged in the concrete cylinder wall 21 around each inner cylinder 3, the upper end of each outer frame 4 is provided with an assembling and disassembling stress hoisting point structure (not shown) of a connected extension bar 6, the lower part of each outer frame 4 is provided with a supporting pin 8 and a lateral supporting pin 7 thereof, and at least two telescopic limiting roller wheel devices around the periphery thereof, the limiting roller wheels 9 can be turned into and positioned in the reserved bearing holes 22 of the wall, and are also provided with limiting sleeves (not shown) for limiting the inner cylinders 3, and the integral steel platform 35 is detachably supported on a bearing beam 24 at the upper end of the outer frame 4 and can be lifted together with the bearing beam;
inner and outer handrails 16, 18, 17 disposed around the unitary steel platform 35, and fully enclosed upper and lower lifting rails (fenders) 19, 25 disposed around the outer periphery of the steel platform 35, and
inner and outer formworks 11, 12 for casting concrete of the cylinder 14 and the connecting beam 15 thereof;
as shown in fig. 1, the main girder 5 is of a well truss structure, and a closed triangular frame beam 32 is formed in the central region thereof, and the secondary beam 13 is a ring beam arranged along the straight cylinder 14 and the connecting beam 15 and used as a lifting point for lifting various inner and outer formworks 11 and 12 or partition wall formworks; the inner and outer handrails 17, 18 are hung on the ring beam 13 as a secondary beam, and the operation closing lifting railings 19, 25 are arranged on the upper and lower parts of the outer handrail 17 in a totally-enclosed manner along the periphery of the ring beam (see fig. 3); the connection mode of the secondary beam 13 at the connecting beam part of the steel platform 35 is a movable and detachable mode, and the integral steel platform 35 is placed on the bearing beam 24 of the outer framework 4 through the truss main girder 5; the closed lifting fences 19, 25 are made of steel wire mesh sheets; the bottom of the outer scaffold 17 is provided with a telescopic gate plate 20 which can be contacted with the outer wall of the straight cylinder 14 as a building structure, as shown in fig. 3, when the outer framework 4, the platform 35 and the outer hanging legs 17 are lifted, the telescopic gate plate 20 is contracted and separated from the outer wall of the cylinder to a position a, and when the lifting is finished and the positioning is fixed, the telescopic gate plate 20 extends out to abut against the outer wall of the cylinder, such as a position b, so that the scaffold 17 of the hanging fence is completely closed without any object falling; all the inner and outer scaffold 16, 17 and 18 pass through the upper and lower parts so as to facilitate the construction of the ring plate part and the middle cylinder part (not shown) of the coupling beam 15; in the embodiment, the lifting device is an electric plate lifting machine 1, but other lifting devices such as a hydraulic jack or an electric winch can be adopted, depending on the construction situation.
The method and apparatus of the present invention have been described above by referring to an embodiment of the present invention, and it should be understood that the method and apparatus for constructing the inner and outer frames with the integral self-elevating type can be partially changed and combined according to the implementation objects, and can be widely applied to the engineering construction of all high-rise concrete buildings, high-rise or super high-rise frame tubular structure buildings, large and small bridge tower structures and large and medium-sized common tubular building structures.
Claims (9)
1. The construction method for integrally self-elevating the inner cylinder outer framework is characterized by comprising the following steps in sequence:
reserving a bearing hole on the wall body of the poured concrete cylinder wall;
hoisting a plurality of supporting outer frameworks one by one in place in the concrete wall of the building, and enabling the supporting heavy pins to be located in the bearing openings;
inserting each inner cylinder body into the center of each outer framework; the inner cylinder body can move up and down through the bearing seat at the lower end of the inner cylinder body and is temporarily fixed on the reserved bearing adjuster
The integral construction steel platform is partitioned according to design and is positioned on the top bearing beam of each outer framework and then connected into an integral steel platform, and the construction platform consists of a cylinder sub-platform and a connecting beam sub-platform;
a lifting device and a screw rod suspender are arranged at the upper end of the inner cylinder; the lead screw suspender is detachably connected with the bearing beam of the outer framework through the extension bar;
mounting and suspending an inner and outer hitching leg and a closed hanging rail on the construction steel platform;
installing a combined construction steel large mould for pouring a building, wherein the steel large mould comprises an inner template and an outer template;
the inner cylinder and the outer frame are respectively and alternately lifted by taking the outer frame and the inner cylinder as fulcrums, so that the whole steel platform is lifted and then positioned and fixed;
hoisting and binding steel bars;
fixing and correcting the pouring template;
and (5) pouring and tamping the concrete wall.
2. An apparatus for performing the inner tube/outer frame jack-up construction method of claim 1, comprising:
the integral construction steel platform consists of sub-platforms surrounding a tower body structure or a cylindrical building structure and sub-platforms connected with beams, each sub-platform consists of secondary beams and is connected into an integral frame through a main girder, and the frame is provided with an operation plate;
the upper end of the inner cylinder body is provided with a lifting device and a screw rod suspender, the lower end of the inner cylinder body is provided with a bearing seat and a rotary bearing pin, and the rotary bearing pin can slide into and be placed in a reserved bearing hole of the concrete wall;
the upper end of the outer framework is provided with a connecting extension bar assembling and disassembling stress hoisting point structure, the lower end of the outer framework is provided with a supporting seat and a lateral bearing pin, and at least two telescopic limiting roller wheel devices on the periphery, the bearing pin and the limiting roller wheel can be turned into and positioned in the reserved bearing hole of the wall, and the outer framework is also provided with a limiting sleeve for limiting the inner barrel; the integral steel platform is detachably supported on the outer framework and can be lifted together with the outer framework;
inner and outer feet and operation hanging rails arranged around the integral steel platform, and
the inner and outer formworks are used for pouring wall concrete.
3. The apparatus of claim 2, wherein said integral steel platform main girder is a truss structure having a central region forming an enclosed truss beam.
4. The apparatus of claim 2, wherein the secondary beams are ring beams disposed along the building structure for lifting points for lifting various types of inside and outside forms or partition forms.
5. The device as claimed in claim 2, wherein said inner and outer handrails are suspended from said secondary beam, and said lifting fences are disposed around said outer handrails in a totally enclosed manner along the periphery of said secondary beam.
6. The apparatus of claim 2, wherein the secondary beam of the beam connecting portion has a movable connection.
7. The apparatus of claim 2, wherein said unitary steel platform rests on said load beams of said outer frame via said main girder.
8. The device as claimed in claim 2 or 5, wherein the outer scaffold is provided with a retractable shutter plate which can contact with the outer wall of the building structure, the inner scaffold and the outer scaffold on the periphery of the building structure are all communicated up and down to facilitate the construction of the beam-connecting annular plate part and the middle barrel part, and the closed hanging fence arranged around the periphery of the secondary beam is a steel wire mesh.
9. The apparatus of claim 2, wherein the lifting device is an electric plate lifter, a hydraulic jack or an electric winch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93112641 CN1048066C (en) | 1993-12-31 | 1993-12-31 | Method and apparatus for integrally self-lifting scaffold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93112641 CN1048066C (en) | 1993-12-31 | 1993-12-31 | Method and apparatus for integrally self-lifting scaffold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1104704A CN1104704A (en) | 1995-07-05 |
| CN1048066C true CN1048066C (en) | 2000-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93112641 Expired - Lifetime CN1048066C (en) | 1993-12-31 | 1993-12-31 | Method and apparatus for integrally self-lifting scaffold |
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| Country | Link |
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| CN (1) | CN1048066C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015706A (en) * | 2012-11-08 | 2013-04-03 | 广西建工集团第五建筑工程有限责任公司 | System for lifting elevator shaft mold and construction method for cast-in-place wall of elevator shaft |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704681B (en) * | 2012-06-05 | 2015-12-09 | 贵州开磷建设集团有限公司 | A kind of steel concrete straight tube towering structure hydraulic sliding mould construction method |
| CN102877653B (en) * | 2012-10-22 | 2014-12-10 | 北京首钢建设集团有限公司 | Synchronous lifting construction method for self-made steel platform of frame-shear double-cylinder structure |
| CN103643790B (en) * | 2013-10-30 | 2016-08-17 | 中建钢构有限公司 | It is applicable to the self-crawling type operating platform of colossal column |
| CN106760467A (en) * | 2017-01-23 | 2017-05-31 | 江苏弘盛建设工程集团有限公司 | A kind of vertical hoistway trackless is from the safe cage of lifting self-lock formula |
| CN107605141B (en) * | 2017-08-25 | 2019-01-29 | 上海建工集团股份有限公司 | The contracture device and construction method of hanging feet hand system outside a kind of integral steel platform corner |
| CN113216650B (en) * | 2021-05-19 | 2022-02-15 | 西南石油大学 | Integral lifting type automatic building construction platform |
-
1993
- 1993-12-31 CN CN 93112641 patent/CN1048066C/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015706A (en) * | 2012-11-08 | 2013-04-03 | 广西建工集团第五建筑工程有限责任公司 | System for lifting elevator shaft mold and construction method for cast-in-place wall of elevator shaft |
| CN103015706B (en) * | 2012-11-08 | 2015-04-22 | 广西建工集团第五建筑工程有限责任公司 | System for lifting elevator shaft mold and construction method for cast-in-place wall of elevator shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1104704A (en) | 1995-07-05 |
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