CN111946058A - Formwork supporting fixing device of Y-shaped high-rise concrete structure and construction method - Google Patents
Formwork supporting fixing device of Y-shaped high-rise concrete structure and construction method Download PDFInfo
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- CN111946058A CN111946058A CN202010823010.0A CN202010823010A CN111946058A CN 111946058 A CN111946058 A CN 111946058A CN 202010823010 A CN202010823010 A CN 202010823010A CN 111946058 A CN111946058 A CN 111946058A
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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
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
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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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
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Abstract
The invention discloses a formwork supporting fixing device of a Y-shaped high-rise concrete structure and a construction method, wherein the formwork supporting fixing device comprises an inclined column and an upright column; the other side of the upright post is tied with the embedded part through the inner inhaul cable, and the inner inhaul cable is provided with a wireless intelligent tension monitoring device; one end of each of the obliquely upward outer cable, the obliquely downward outer cable and the inner cable is fixed on the long groove steel skeleton or the short groove steel skeleton and is fixed by a fixing bolt on the long groove steel skeleton or the short groove steel skeleton; the steel wire rope of the inner inhaul cable is divided into two sections which are arranged in equal length, and the span of the steel wire rope is connected with the wireless intelligent tension monitoring device; the construction method comprises the steps of template construction, inhaul cable installation, concrete pouring and maintenance. The invention has simple structure, reasonable design, convenient manufacture and good use effect, can effectively and quickly finish formwork support, and has safe and reliable whole process of concrete pouring.
Description
Technical Field
The invention relates to the technical field of structure construction, in particular to a formwork supporting fixing device and a construction method for a Y-shaped high-rise concrete structure.
Background
The high formwork construction of the large-span high-rise concrete structure has the problems of high formwork height, large erection volume, heavy structure and the like, common bowl buckle type, common steel pipe and socket plate buckle type full-space support frames are adopted for erection, and when a concrete structure formwork is erected and large-volume concrete is poured, the high-rise concrete structure is easily deformed greatly, and even a local or integral collapse accident of the full-space support frames occurs, as shown in fig. 9.
Disclosure of Invention
The invention aims to provide a formwork supporting fixing device and a construction method of a Y-shaped high-rise concrete structure, which have the advantages of simple structure, reasonable stress, convenient and quick construction and manufacture, and can safely and reliably complete the formwork supporting fixing of the structure so as to avoid the problems that the large-span high-rise structure is easy to deform and collapse a full-span supporting frame in the construction process.
In order to achieve the purpose, the invention provides the following technical scheme:
the formwork fixing device for the Y-shaped high-rise concrete structure comprises an inclined column and an upright column; the inclined column and the upright column are tied through an obliquely upward outer cable and an obliquely downward outer cable; the other side of the upright post is tied with the embedded part through an inner inhaul cable, and a wireless intelligent tension monitoring device is arranged on the inner inhaul cable;
the inclined column comprises an inclined formwork plywood, a long groove steel framework parallel to the direction of the inclined column and a short groove steel framework perpendicular to the direction of the inclined column; the upright column comprises a vertical formwork plywood, a long groove steel framework parallel to the direction of the upright column and a short groove steel framework perpendicular to the direction of the upright column, wherein the long groove steel framework is formed by splicing webs of two channel steels, and the short groove steel framework is a single channel steel;
the inclined upper outer stay cable, the inclined lower outer stay cable and the inner stay cable respectively comprise an anchorage device for extruding an end rod, a steel wire rope, a U-shaped buckle and a turnbuckle, and one ends of the inclined upper outer stay cable, the inclined lower outer stay cable and the inner stay cable are fixed on the long-groove steel skeleton or the short-groove steel skeleton and are fixed by fixing bolts on the long-groove steel skeleton or the short-groove steel skeleton; the steel wire rope of the inner inhaul cable is divided into two sections which are arranged in equal length, and the span of the inner inhaul cable is connected with the wireless intelligent tension monitoring device;
the embedded parts are composed of profile steel, reserved long round holes and welded embedded anchoring steel bars, two groups of embedded parts are correspondingly arranged according to the bonding distance and are embedded on the structural slab.
Furthermore, the applicable included angle between the oblique column and the upright column ranges from 20 degrees to 60 degrees.
Furthermore, the long-groove steel frame and the short-groove steel frame are made of C12-C18 light-weight channel steel, and the long-groove steel frame and the short-groove steel frame are connected into a whole through fixing bolts.
Furthermore, the category range of the steel wire ropes of the inclined upper outer stay rope, the inclined lower outer stay rope and the inner stay rope is 6 x 7 to 6 x 19, the diameter range of the steel wire ropes is 10mm to 35mm, and the grade range of the steel wire ropes is 1570-2The U-shaped buckles of the inclined upper outer cable, the inclined lower outer cable and the inner cable have the size range of M16-M20, the extrusion end rod anchorage has the size range of M16-M20, the turn buckle connected between the U-shaped buckles has the code number of JW3306-JW3308, the diameter range of 16mm-20mm, and the connection form is OU type.
Furthermore, the wireless intelligent tension monitoring device comprises a hydraulic cylinder, a short cable and a hydraulic piston, wherein one end of the short cable is connected to the hydraulic piston, the other end of the short cable is connected with the inner cable through a U-shaped buckle, the hydraulic piston is controlled by the hydraulic cylinder, the hydraulic cylinder remotely and wirelessly controls the pulling internal force of the short cable and the inner cable, and the internal force control range is 10kN-40 kN.
Furthermore, the size of the long round hole reserved on the embedded part is 18mm-22mm, and the diameter of the embedded anchoring steel bar welded by the embedded anchoring steel bar is 14mm-20 mm.
Furthermore, the distance between the pulling points of the obliquely-upward outer cable and the obliquely-downward outer cable ranges from 1m to 10 m.
The invention provides another technical scheme, and a construction method of a formwork fixing device of a Y-shaped high-rise concrete structure comprises the following steps:
s1: and (3) template construction: respectively supporting a formwork on an inclined column and a vertical column of the Y-shaped high-rise concrete structure, mounting a horizontal short channel steel framework and a vertical long channel steel framework, and fastening by fixing bolts;
s2: installing a stay cable: erecting a construction platform tower, installing an obliquely upward outer stay cable, an obliquely downward outer stay cable and an inner stay cable, fastening the stay cables through fixing bolts, and setting the preset tension of the wireless intelligent tension monitoring device;
s3: pouring concrete: in the concrete pouring process, the dead weight of the concrete poured in the batter post is increased and construction disturbance load influence is caused, the structural stability is obviously influenced by the batter post overturning moment, the wireless intelligent tension monitoring device automatically adjusts the tension of the short stay cable and the inner stay cable in real time, and the integral balance state of the structure is monitored;
s4: and (5) maintenance: in the maintenance process, the pulling force of the wireless intelligent pulling force monitoring device is kept unchanged, and after the concrete maintenance reaches 75% of the design strength, the pulling force of the wireless intelligent pulling force monitoring device is removed.
Compared with the prior art, the invention has the beneficial effects that:
1. the formwork supporting fixing device of the Y-shaped high-rise concrete structure and the construction method have the advantages of simple structural form, reasonable design and convenience in processing.
2. The formwork supporting fixing device of the Y-shaped high-rise concrete structure and the construction method provided by the invention have the advantages that the formwork supporting fixing device can be recycled, and the turnover efficiency is high.
3. The formwork supporting fixing device and the construction method of the Y-shaped high-rise concrete structure provided by the invention have reasonable structural design and stress form, and effectively solve the problem of overlarge eccentricity in the construction process.
4. The formwork supporting fixing device and the construction method of the Y-shaped high-rise concrete structure can monitor the force change in the construction and concrete pouring processes in a wireless mode in real time, automatically adjust the tensile force of the steel stay rope, balance eccentric load and guarantee the safety of the structure in the whole construction and maintenance stages.
5. The formwork supporting fixing device and the construction method of the Y-shaped high-rise concrete structure can be suitable for the pouring and maintenance stage of a similar high-rise eccentric structure.
Drawings
FIG. 1 is a front view of a formwork holding apparatus of the present invention;
FIG. 2 is a side view of the formwork holding apparatus of the present invention in disassembled form;
FIG. 3 is a schematic view of the cable installation of the present invention;
FIG. 4 is a construction view of the formwork holding apparatus of the present invention;
FIG. 5 is an enlarged view of an embedment of the present invention;
FIG. 6 is an enlarged view of the channel of the present invention;
FIG. 7 is a diagram of the internal structure of the wireless intelligent tension monitoring system of the present invention;
FIG. 8 is a flow chart of the construction method of the present invention;
fig. 9 is a schematic view of the load bearing of the existing high-rise concrete structure.
In the figure: 1. an oblique column; 101. obliquely supporting the formwork plywood; 2. a column; 201. vertically supporting the formwork plywood; 3. a wireless intelligent tension monitoring device; 301. a hydraulic cylinder; 302. a short stay cable; 303. a hydraulic piston; 4. embedding parts; 401. section steel; 402. a reserved long round hole; 403. embedding an anchoring steel bar; 501. an obliquely upward outer cable; 502. an obliquely downward outer cable; 6. an inner cable; 701. a long groove steel framework; 702. a short channel steel skeleton; 8. and (5) fixing the bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, in the embodiment of the present invention: the formwork supporting and fixing device of the Y-shaped high-rise concrete structure comprises an inclined column 1 and a vertical column 2; the inclined column 1 and the upright column 2 are connected through an inclined upper outer cable 501 and an inclined lower outer cable 502, and the lengths of the inclined upper outer cable 501 and the inclined lower outer cable 502 are taken according to actual lengths; the other side of the upright post 2 is tied with the embedded part 4 through an inner inhaul cable 6, and the inner inhaul cable 6 is provided with a wireless intelligent tension monitoring device 3.
The inclined column 1 comprises an inclined formwork plywood 101, a long groove steel framework 701 parallel to the direction of the inclined column 1 and a short groove steel framework 702 perpendicular to the direction of the inclined column 1; the upright post 2 comprises a vertical formwork plywood 201, a long groove steel framework 701 parallel to the direction of the upright post 2 and a short groove steel framework 702 perpendicular to the direction of the upright post 2, wherein the long groove steel framework 701 is formed by splicing webs of two channel steels, and the short groove steel framework 702 is a single channel steel.
The inclined upper outer cable 501, the inclined lower outer cable 502 and the inner cable 6 respectively comprise an extrusion end rod anchorage, a steel wire rope, a U-shaped buckle and a turnbuckle, and one ends of the inclined upper outer cable 501, the inclined lower outer cable 502 and the inner cable 6 are fixed on the long-groove steel skeleton 701 or the short-groove steel skeleton 702 and are fixed by the fixing bolts 8 on the long-groove steel skeleton 701 or the short-groove steel skeleton 702; the steel wire rope of the inner inhaul cable 6 is divided into two sections which are arranged in equal length, and the span of the steel wire rope is connected with the wireless intelligent tension monitoring device 3.
The embedded part 4 is composed of section steel 401, reserved long round holes 402 and welded embedded anchoring steel bars 403, two groups of the embedded part are correspondingly arranged according to the bonding distance, and the embedded part is embedded in the structural slab.
In the above embodiment, the angle between the batter post 1 and the upright post 2 is suitably in the range of 20 ° to 60 °, and in particular, 25 ° may be preferred.
In the above embodiment, the long-channel steel frame 701 and the short-channel steel frame 702 are made of C12-C18 light channel steel, and the material is C14b light channel steel during the specific implementation, and the long-channel steel frame 701 and the short-channel steel frame 702 are connected into a whole through the fixing bolt 8.
In the above embodiment, the range of the types of the wire ropes of the obliquely upward outer cable 501, the obliquely downward outer cable 502 and the inner cable 6 is 6 × 7 to 6 × 19, specificallyThe diameter of the steel wire rope is selected to be 6 multiplied by 19 during implementation, the diameter range of the steel wire rope is 10mm-35mm, the specific implementation is 20mm, and the grade range of the steel wire rope is 1570-21670N/mm is selected for specific implementation2The U-shaped buckle size range of the inclined upper outer pull cable 501, the inclined lower outer pull cable 502 and the inner pull cable 6 is M16-M20, M20 is selected in specific implementation, the size range of an anchor of an extrusion end rod is M16-M20, M20 is selected in specific implementation, the code number of a turnbuckle connected between the two is JW3306-JW3308, JW3308 is selected in specific implementation, and the connection form is OU type.
Referring to fig. 7, the wireless intelligent tension monitoring device 3 includes a hydraulic cylinder 301, a short cable 302 and a hydraulic piston 303, one end of the short cable 302 is connected to the hydraulic piston 303, the other end is connected to the inner cable 6 through a U-shaped buckle, the hydraulic piston 303 is controlled by the hydraulic cylinder 301, the hydraulic cylinder 301 controls the pulling internal force of the short cable 302 and the inner cable 6 through remote wireless control, and the internal force control range is 10kN-40 kN.
In the above embodiment, the size of the long round hole 402 reserved on the embedded part 4 is 18mm-22mm, and the diameter of the embedded anchoring steel bar 403 welded to the embedded part is 14mm-20 mm.
In the above embodiment, the pitch of the pulling points of the obliquely upward outer cable 501 and the obliquely downward outer cable 502 ranges from 1m to 10 m.
Referring to fig. 8, in order to better explain the above invention, a construction method of a formwork fixing device for a Y-shaped high-rise concrete structure is further provided, which includes the following steps:
the method comprises the following steps: and (3) template construction: respectively erecting a formwork for an inclined column 1 and a vertical column 2 of a Y-shaped high-rise concrete structure, installing a horizontal short channel steel framework 702 and a vertical long channel steel framework 701, and fastening the horizontal short channel steel framework and the vertical long channel steel framework through a fixing bolt 8;
step two: installing a stay cable: erecting a construction platform tower, installing an obliquely upward outer cable 501, an obliquely downward outer cable 502 and an inner cable 6, fastening the cables through a fixing bolt 8, and setting the preset tension of the wireless intelligent tension monitoring device 3;
step three: pouring concrete: in the concrete pouring process, the dead weight of the concrete poured in the batter post 1 is increased and construction disturbance load influence is caused, the influence of the overturning moment of the batter post 1 on the structural stability is obvious, the wireless intelligent tension monitoring device 3 automatically adjusts the tension of the short stay cable 302 and the inner stay cable 6 in real time, and the overall balance state of the structure is monitored;
step four: and (5) maintenance: in the maintenance process, the pulling force of the wireless intelligent pulling force monitoring device 3 is kept unchanged, and after the concrete maintenance reaches 75% of the design strength, the pulling force of the wireless intelligent pulling force monitoring device 3 is removed.
In summary, the following steps: the formwork supporting fixing device and the construction method of the Y-shaped high-rise concrete structure have the advantages that the structural form is simple, the design is reasonable, the processing is convenient, the whole device can be recycled, the turnover efficiency is high, the design stress form is reasonable, and the problem of overlarge eccentricity in the construction process is effectively solved; in addition, the wireless intelligent tension monitoring device 3 can monitor the force change in the construction and concrete pouring processes in a real-time wireless mode, automatically adjust the tension of the steel stay cable, balance the eccentric load, ensure the safety of the whole construction and maintenance stages of the structure, be suitable for the pouring and maintenance stages of a similar high-rise eccentric structure and complete the formwork fixing of the structure safely and reliably.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (8)
- A formwork supporting fixing device of a Y-shaped high-rise concrete structure is characterized by comprising an inclined column (1) and a vertical column (2); the inclined column (1) and the upright column (2) are connected through an inclined upper outer cable (501) and an inclined lower outer cable (502); the other side of the upright post (2) is tied with the embedded part (4) through an inner inhaul cable (6), and a wireless intelligent tension monitoring device (3) is arranged on the inner inhaul cable (6);the inclined column (1) comprises an inclined formwork plywood (101), a long groove steel framework (701) parallel to the direction of the inclined column (1) and a short groove steel framework (702) perpendicular to the direction of the inclined column (1); the upright post (2) comprises a vertical formwork plywood (201), a long groove steel framework (701) parallel to the direction of the upright post (2) and a short groove steel framework (702) perpendicular to the direction of the upright post (2), wherein the long groove steel framework (701) is formed by splicing webs of two channel steels, and the short groove steel framework (702) is a single channel steel;the inclined upward outer cable (501), the inclined downward outer cable (502) and the inner cable (6) comprise an extrusion end rod anchorage, a steel wire rope, a U-shaped buckle and a turnbuckle, and one ends of the inclined upward outer cable (501), the inclined downward outer cable (502) and the inner cable (6) are fixed on the long-groove steel framework (701) or the short-groove steel framework (702) and are fixed by fixing bolts (8) on the long-groove steel framework (701) or the short-groove steel framework (702); the steel wire rope of the inner inhaul cable (6) is divided into two sections which are arranged in equal length, and the span of the steel wire rope is connected with the wireless intelligent tension monitoring device (3);the embedded part (4) consists of profile steel (401), reserved long round holes (402) and welded embedded anchoring steel bars (403), two groups of embedded parts are correspondingly arranged according to the bonding distance and are embedded in the structural slab.
- 2. The formwork holding apparatus for a Y-type high-rise concrete structure according to claim 1, wherein: the applicable included angle range between the batter post (1) and the upright post (2) is 20-60 degrees.
- 3. The formwork holding apparatus for a Y-type high-rise concrete structure according to claim 1, wherein: the long-groove steel frame (701) and the short-groove steel frame (702) are made of C12-C18 light channel steel, and the long-groove steel frame (701) and the short-groove steel frame (702) are connected into a whole through fixing bolts (8).
- 4. The formwork holding apparatus for a Y-type high-rise concrete structure according to claim 1, wherein: the category ranges of the steel wire ropes of the inclined upper outer stay (501), the inclined lower outer stay (502) and the inner stay (6) are 6 x 7 to 6 x 19, the diameter range of the steel wire ropes is 10mm to 35mm, and the grade range of the steel wire ropes is 1570-1960N/mm2The U-shaped buckles of the inclined upper outer cable (501), the inclined lower outer cable (502) and the inner cable (6) have the size range of M16-M20, and the size range of the anchor of the extrusion end rod is M16-M20, the code of the turnbuckle connected between the two screws is JW3306-JW3308, the diameter range is 16mm-20mm, and the connection form is OU type.
- 5. The formwork holding apparatus for a Y-type high-rise concrete structure according to claim 1, wherein: the wireless intelligent tension monitoring device (3) comprises a hydraulic cylinder (301), a short cable (302) and a hydraulic piston (303), one end of the short cable (302) is connected to the hydraulic piston (303), the other end of the short cable is connected with the inner cable (6) through a U-shaped buckle, the hydraulic piston (303) is controlled by the hydraulic cylinder (301), the hydraulic cylinder (301) controls the internal force of the short cable (302) and the inner cable (6) through remote wireless control, and the internal force control range is 10-40 kN.
- 6. The formwork holding apparatus for a Y-type high-rise concrete structure according to claim 1, wherein: the size of the long round hole (402) reserved on the embedded part (4) is 18-22 mm, and the diameter of the embedded anchoring steel bar (403) welded with the embedded part is 14-20 mm.
- 7. The formwork holding apparatus for a Y-type high-rise concrete structure according to claim 1, wherein: the distance range of the pull points of the obliquely upward outer cable (501) and the obliquely downward outer cable (502) is 1-10 m.
- 8. The method for constructing a formwork holding device for a Y-type high-rise concrete structure according to claim 1, comprising the steps of:s1: and (3) template construction: respectively erecting a formwork for an inclined column (1) and a vertical column (2) of a Y-shaped high-rise concrete structure, installing a horizontal short channel steel framework (702) and a vertical long channel steel framework (701) and fastening the horizontal short channel steel framework and the vertical long channel steel framework through a fixing bolt (8);s2: installing a stay cable: erecting a construction platform tower, installing an obliquely upward outer cable (501), an obliquely downward outer cable (502) and an inner cable (6), fastening the cables through a fixing bolt (8), and setting the preset tension of the wireless intelligent tension monitoring device (3);s3: pouring concrete: in the concrete pouring process, the self weight of concrete poured in the batter post (1) is increased, construction disturbance load influence is caused, the influence of the overturning moment of the batter post (1) on the structural stability is obvious, the wireless intelligent tension monitoring device (3) automatically adjusts the tension of the short stay cable (302) and the inner stay cable (6) in real time, and the integral balance state of the structure is monitored;s4: and (5) maintenance: in the maintenance process, the tension of the wireless intelligent tension monitoring device (3) is kept unchanged, and after the concrete maintenance reaches 75% of the design strength, the tension of the wireless intelligent tension monitoring device (3) is removed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010823010.0A CN111946058A (en) | 2020-08-17 | 2020-08-17 | Formwork supporting fixing device of Y-shaped high-rise concrete structure and construction method |
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| CN202010823010.0A CN111946058A (en) | 2020-08-17 | 2020-08-17 | Formwork supporting fixing device of Y-shaped high-rise concrete structure and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113958120A (en) * | 2021-09-27 | 2022-01-21 | 中冶天工集团有限公司 | Inclined frame concrete cylindrical formwork reinforcing system |
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| CN201416148Y (en) * | 2009-06-18 | 2010-03-03 | 中达建设集团股份有限公司 | Symmetrical anchoring rope pull rod shuttering for oblique post |
| CN102561680A (en) * | 2011-12-12 | 2012-07-11 | 中国建筑第二工程局有限公司 | Cast-in-place concrete external diagonal column mold plate system and construction method |
| CN208777151U (en) * | 2018-08-10 | 2019-04-23 | 苏交科集团股份有限公司 | A kind of stay cable force regulating device |
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2020
- 2020-08-17 CN CN202010823010.0A patent/CN111946058A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201416148Y (en) * | 2009-06-18 | 2010-03-03 | 中达建设集团股份有限公司 | Symmetrical anchoring rope pull rod shuttering for oblique post |
| CN102561680A (en) * | 2011-12-12 | 2012-07-11 | 中国建筑第二工程局有限公司 | Cast-in-place concrete external diagonal column mold plate system and construction method |
| CN208777151U (en) * | 2018-08-10 | 2019-04-23 | 苏交科集团股份有限公司 | A kind of stay cable force regulating device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113958120A (en) * | 2021-09-27 | 2022-01-21 | 中冶天工集团有限公司 | Inclined frame concrete cylindrical formwork reinforcing system |
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Application publication date: 20201117 |