CN107630554B - Rapid construction device and method for floor slab - Google Patents
Rapid construction device and method for floor slab Download PDFInfo
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- CN107630554B CN107630554B CN201610565042.9A CN201610565042A CN107630554B CN 107630554 B CN107630554 B CN 107630554B CN 201610565042 A CN201610565042 A CN 201610565042A CN 107630554 B CN107630554 B CN 107630554B
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- floor slab
- cross beam
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Abstract
The invention discloses a rapid construction device and a rapid construction method for a floor slab, wherein the rapid construction device comprises a floor slab template and a cross beam for supporting the floor slab template, and two ends of the cross beam are connected with a bearing wall or/and a bearing beam; the rapid construction method comprises the following operations: 1. laying a floor slab template on a cross beam of the rapid construction device; 2. fixing parts are arranged at two ends of the cross beam; 3. and (3) hoisting the assembly formed in the step (2) to a corresponding bearing wall or/and a bearing beam, and then carrying out steel bar laying and concrete pouring on the bearing wall or/and the bearing beam. The invention can change the prior overhead floor slab template into the one which is installed on the ground and then is directly hoisted to the construction site, can improve the safety and the construction efficiency of the construction, reduces the danger of the construction, and has strong practicability.
Description
Technical Field
The invention relates to the construction technology of buildings, in particular to a rapid construction device and a rapid construction method for a floor slab.
Technical Field
With the continuous improvement of the living standard of people, the quantity and the quality of buildings are greatly improved. Therefore, saving of building materials and improvement of construction speed are increasingly important. At present, a lot of inventions try to save building materials, for example, the invention with the patent application number of 200910076895.6 and the invention name of 'a thin-wall hollow tube anti-floating construction method for cast-in-place concrete hollow floor slab' disclosed by the Chinese patent office on No. 07/22/2009 discloses a method, and the method adopts a thin steel plate to weld a thin-wall hollow tube anti-floating frame to solve the problems of anti-floating and anti-moving of the thin-wall hollow tube in the concrete pouring process. Although the method can partially reduce the consumption of concrete, the operation mode is complex, the equipment investment is large, and the method cannot be effectively applied to high-rise buildings due to the lack of corresponding operation platforms. Therefore, there is an urgent need for a construction method and a corresponding apparatus that can fundamentally save building materials, is convenient to operate, has high safety, and can improve construction speed.
Disclosure of Invention
In view of the above problems and needs in the prior art, an object of the present invention is to provide a rapid construction apparatus and method for a floor slab, which is convenient for construction, has a rapid construction speed, and can significantly save building materials.
The invention provides a rapid construction device for a floor slab, which comprises a floor slab template and a cross beam for supporting the floor slab template, wherein two ends of the cross beam are connected with a bearing wall or/and a bearing beam.
The existing floor slab formwork is characterized in that a steel pipe support frame is built through a steel pipe, and then the steel pipe support frame is paved, so that the defects of long construction period, large workload, high danger and the like exist. By the technology, the floor slab template erected in the air can be directly hoisted to the site after being installed on the ground, so that the construction safety can be improved, the construction danger can be reduced, and the construction efficiency can be improved. The beam with the floor slab template installed is directly hoisted to the bearing wall or/and the bearing beam and then connected with the bearing wall or/and the bearing beam, and then the construction of erecting reinforcing steel bars and pouring concrete can be carried out on the beam.
As an improvement scheme, fixing pieces are arranged at two ends of the cross beam and are connected with the bearing wall or/and the bearing beam through the fixing pieces. The form of the fixing member may be various structures, the purpose of which is to connect the cross beam with the load-bearing wall or/and the load-bearing beam, for example: hook form may be used. When the fixing piece is a hook, one side of the hook is connected with the cross beam (usually movably connected), and the other side of the hook is hung on the bearing wall or/and the bearing beam; the hooks need to be able to bear the total weight of the beam and the floor slab templates, the steel bars and the concrete above.
As an improved scheme, two ends of the cross beam are provided with support rods, and the cross beam is connected with a bearing wall or/and a bearing beam through the support rods; the support rods need to bear the total weight of the cross beams and the floor slab templates, the steel bars and the concrete above.
As an improvement scheme, one or more middle supporting rods are further arranged in the middle of the cross beam to ensure the levelness of the cross beam. When the span of the cross beam is too large, the levelness of the cross beam must be ensured in order to ensure the levelness of the floor slab template, and if the strength of the cross beam is improved, the weight and the manufacturing cost of the cross beam are increased.
As an improvement scheme, one or more than one height adjusting piece is/are arranged on the cross beam to adjust the levelness of the floor slab formwork. Since concrete is poured on the floor slab formwork during construction, the increase of the concrete changes the bearing capacity of the floor slab formwork, so that the stress on the cross beams is changed. According to the invention, the height adjusting screw is arranged, so that the levelness of the floor slab template can be adjusted, the flatness of the floor slab is ensured, and the construction quality is further improved.
As an improved scheme, two ends of the cross beam are also provided with steel bar hanging teeth for fixing prestressed steel bars. The upper parts of two ends of a supporting beam of the supporting frame are respectively provided with a steel bar hanging tooth, and the prestressed steel bar after being pre-tensioned can be arranged and fixed between the two steel bar hanging teeth.
As an improved scheme, a plurality of embedded rods are preset on the floor slab template, the embedded rods are made of light building materials, and the embedded rods are positioned in concrete of the floor slab through positioning pieces. The positioning piece is connected with the floor slab template through the bolt, and the positioning piece can be separated from the floor slab template after the fixing nut of the bolt is loosened; the positioning piece can fix the embedded rod to prevent the embedded rod from floating upwards and moving in the process of pouring concrete. Because the embedded rod is made of light building materials, the mechanical strength and the specific gravity of the embedded rod are far lower than those of concrete, the structure can reduce the weight of the floor slab on one hand, and can form a cavity structure on the other hand, thereby improving the span of the floor slab.
The invention provides a rapid construction method for a floor slab, which comprises the rapid construction device and the following operations:
a1) laying a floor slab template on a cross beam of the rapid construction device (laying can be carried out on the ground);
b1) fixing parts are arranged at two ends of the cross beam, the fixing parts are used for fixing the cross beam on a corresponding bearing wall or/and a bearing beam, and the fixing parts can be in a hook form;
c1) hoisting the assembly formed in the step b1) to a corresponding bearing wall or/and a bearing beam, and then carrying out the next construction; the next construction step is to lay steel bars and pour concrete on the steel bars.
After the construction is finished, the connection between the fixing piece and the cross beam is removed, and then the cross beam and the formwork above the cross beam are separated from the solidified concrete.
As a preferred solution, the rapid construction method comprises the rapid construction device and the following operations:
a2) laying a floor slab template on a cross beam of the rapid construction device (laying can be carried out on the ground);
b2) mounting a support rod on the inner side of a bearing wall or/and a bearing beam to be constructed;
c2) hoisting the assembly formed in the step b2) onto the supporting rod, and then carrying out the next construction; the next construction step is to lay steel bars and pour concrete on the steel bars.
After the construction is finished, firstly, the inner side supporting rods of the bearing wall or/and the bearing beam are dismantled, and meanwhile, the cross beam and the upper formwork are separated from the solidified concrete.
As a preferable scheme, before hoisting, steel bar hanging teeth are fixed at two ends of the cross beam, so that two ends of the prestressed steel bar (at this time, the prestressed steel bar has generated corresponding pretension force) after pretensioning are fixed on the steel bar hanging teeth at two ends of the cross beam, and then hoisting is performed. The construction method can reduce the steel bar binding construction in the air and can save more than 80 percent of the steel bar consumption.
As a preferred scheme, before hoisting, a plurality of embedded rods are embedded in the floor slab template, wherein the embedded rods are made of light building materials and are positioned on the floor slab through positioning pieces, and then hoisting is performed. By adopting the construction method, the weight of the floor slab can be reduced by 30 percent, and the flexural strength and the span of the floor slab can be improved.
As a preferred scheme, before hoisting, fixing steel bar hanging teeth at two ends of the cross beam, so that two ends of prestressed steel bars (at this time, the prestressed steel bars generate corresponding pretension) after pretensioning are fixed on the steel bar hanging teeth at two ends of the cross beam, then embedding a plurality of embedded rods on the floor slab template, positioning the embedded rods on the floor slab through positioning pieces, and hoisting; the embedded rod is made of light building materials. By adopting the construction method, the binding construction of the reinforcing steel bars in the air can be reduced, more than 80% of the using amount of the reinforcing steel bars can be saved, simultaneously, the weight of the floor slab can be reduced by 30%, and the flexural strength and the span of the floor slab can be improved.
Compared with the prior art, the invention has the following remarkable progress:
1. the invention can ensure that the work of erecting the floor slab template which is required to be carried out in the air at present can be carried out on the ground and then directly hoisted, thereby not only improving the construction efficiency, but also reducing the work difficulty and danger in the construction.
2. When the prestressed reinforcement is adopted to replace the existing common reinforcement structure, the using amount of the reinforcement can be greatly reduced, and particularly, the span of the floor slab can be improved by adopting the prestressed structure.
Drawings
Fig. 1 is a schematic structural view of a rapid construction apparatus for a floor slab according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of another rapid construction device for a floor slab according to embodiment 2 of the present invention;
fig. 3 is a schematic structural view of a rapid construction device for a floor slab, which is capable of adjusting levelness and provided by embodiment 3 of the invention;
fig. 4 is a schematic structural view of a rapid construction device for a floor slab for installing prestressed reinforcement according to embodiment 4 of the present invention;
fig. 5 is a schematic structural view of a rapid construction device for a floor slab, which is provided by embodiment 5 of the present invention and has embedded rods installed therein;
fig. 6 is a schematic cross-sectional view of a reinforcing steel bar hanger according to embodiment 6 of the present invention;
fig. 7 is a schematic structural diagram of a rapid construction method for a floor slab according to embodiment 7 of the present invention;
fig. 8 is a schematic structural diagram of a rapid construction method for a floor slab according to embodiment 8 of the present invention;
fig. 9 is a schematic structural diagram of a rapid construction method for a floor slab according to embodiment 9 of the present invention;
fig. 10 is a schematic structural diagram of a rapid construction method for a floor slab according to embodiment 10 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention are further described in detail below with reference to the embodiments and the accompanying drawings.
Example 1
The floor of building all supports the steel pipe through the installation below the template, withstands the template of higher authority through supporting the steel pipe, nevertheless supports the installation and the dismantlement of steel pipe and waste time and energy, and the security of being under construction in the air is poor.
Referring to FIG. 1: the rapid construction device 1 provided by the invention consists of a cross beam 2 and a floor slab template 3 paved on the cross beam 2, and the paving work is carried out on the ground. The two ends of the cross beam 2 are respectively provided with the fixed hooks 4 and 5, and then the fixed hooks are directly hoisted on the bearing wall or/and the bearing beam through hoisting, so that the template is installed in the air, and the method has the advantages of high efficiency, good safety, simplicity in operation, low labor cost and the like.
Example 2
Referring to FIG. 2: the two ends of the beam 2 are respectively provided with the fixed support rods 6 and 7, and then are directly hoisted on the bearing wall 8 or/and the bearing beam 9 through hoisting, so that the template can be installed in the air, and the method has the advantages of high efficiency, good safety, simple operation, low labor cost and the like. Of course, the fixed support rods 6 and 7 may be connected to the load-bearing wall 8 or/and the load-bearing beam 9, and then the rapid construction device 1 may be hung on the fixed support rods 6 and 7 to be fixed.
Example 3
Referring to FIG. 3: a plurality of height adjusting screw rods 10 are arranged on the cross beam 2, and the levelness of the floor slab template 3 on the top can be adjusted through adjusting nuts 11 on the height adjusting screw rods 10.
Example 4
Referring to FIG. 4: the two ends of the beam 2 of the rapid construction device 1 are respectively provided with a steel bar hanging tooth 12 and a steel bar hanging tooth 13, a prestressed steel bar 14 is fixedly arranged between the steel bar hanging teeth 12 and 13 and is positioned above the floor slab template 3, and the work can be carried out on the ground. Because the prestressed reinforcement 14 has tension and is fixed by the concrete, the prestressed reinforcement can generate back tension to the concrete to achieve the prestressed effect, thereby improving the span and the flatness of the floor slab and saving the reinforcement.
Example 5
Referring to FIG. 5: the embedded positioning clamp 16 tightly wraps the embedded rod 15, and the embedded positioning clamp 16 is fixed on the floor slab template 3 through the clamp fixing screw 17 and the clamp fixing nut 18, so that the embedded rod 15 is positioned on the floor slab template 3. When the concrete is poured, the embedded rods 15 are positioned in the concrete to prevent the embedded rods from floating up or moving in the pouring process. After the concrete is cured, the clamp fixing nuts 18 are loosened, and the floor slab formwork 3 can be dismantled and removed. Because the embedded rod 15 is made of the light building material, the strength of the embedded rod is far lower than that of concrete, and the embedded rod does not play a supporting role, but the embedded rod is equivalent to a cavity in terms of mechanical strength, so that the poured concrete has a cavity anti-bending effect, the span of floors can be increased, and meanwhile, the light building material also has the functions of heat insulation and sound insulation and can also reduce the weight of the floors.
Example 6
Referring to FIG. 6: the steel bar hanging teeth 12 are of a sleeve structure and are composed of a hanging tooth sleeve 19 and a hanging tooth hook 20 inside, and the hanging tooth hook 20 can move up and down inside the hanging tooth sleeve 19. Reinforcing steel bar fixing clips 21 and 22 are respectively installed at both ends of the prestressed reinforcing steel bar 14, and after the prestressed reinforcing steel bar 14 is pre-tensioned, the reinforcing steel bar fixing clips 21 and 22 at both ends are respectively installed on the reinforcing steel bar hanging teeth 12 and 13 at both ends of the cross beam 2 (the structure of the reinforcing steel bar hanging teeth 13 is completely the same as that of the reinforcing steel bar hanging teeth 12, so that the illustration is omitted). To facilitate disassembly, a release agent may be applied to the hanger hook 20.
Example 7
Referring to FIG. 7: on the ground, a floor slab template 3 is firstly paved on a cross beam 2 to form the rapid construction device 1, then fixed hooks 4 and 5 are respectively installed at two ends of the cross beam 2, then the fixed hooks are integrally hoisted on a bearing wall 8 or/and a bearing beam 9, and then concrete 23 is poured after reinforcing steel bars are tied up on the floor slab template 3. Of course, the steel bars can be bundled on the ground and then hoisted. After the concrete 23 has cured, the fixing hooks 4 and 5 are released and the rapid construction device 1 can be dismantled and removed for the next construction.
Example 8
Referring to FIG. 8: on the ground, a floor slab template 3 is firstly paved on a cross beam 2 to form the rapid construction device 1, then fixed hooks 4 and 5 are respectively installed at two ends of the cross beam 2, reinforcing steel bar hanging teeth 12 and 13 are respectively installed on two ends of the cross beam 2, a prestressed reinforcing steel bar 14 is fixedly installed between the reinforcing steel bar hanging teeth 12 and 13 and is positioned above the floor slab template 3, and then the floor slab template is hoisted to a bearing wall 8 or/and a bearing beam 9 after being installed, and then concrete is poured.
The floor form 3 can be adjusted to be horizontal by the height adjusting screw 10. After the concrete is cured, the prestressed reinforcement 14 is fixed in the concrete, and then the reinforcement teeth 12 and 13 are pulled out. Since the prestressed reinforcement 14 has tension and is fixed by the concrete, the prestressed reinforcement can exert a back tension on the concrete, thereby achieving the effect of prestressing. The quick construction device 1 can be removed for the next construction by loosening the fixing hooks 4 and 5.
Example 9
Referring to FIG. 9: on the ground, a floor slab template 3 is firstly paved on a cross beam 2 to form the rapid construction device 1, then fixed hooks 4 and 5 are respectively installed at two ends of the cross beam 2, and an embedded positioning clamp 16 is used for tightly wrapping an embedded rod 15 and fixing the embedded rod on the floor slab template 3. When concrete is poured, the embedded rods 15 are positioned in the concrete to prevent the concrete from floating up or moving in the pouring process. Because the embedded rod 15 is made of light building materials, the strength of the embedded rod is far lower than that of concrete, and the embedded rod does not play a supporting role, but the embedded rod is equivalent to a cavity in terms of mechanical strength, so that the poured concrete has a cavity effect, and the span of floors is increased. Meanwhile, the light building material also has the functions of heat insulation and sound insulation, and the weight of a floor can be reduced. After being installed, the concrete is hoisted to the bearing wall 8 or/and the bearing beam 9, and then concrete is poured.
The floor form 3 can be adjusted to be horizontal by the height adjusting screw 10. After the concrete has cured, the fixing hooks 4 and 5 are released, and the rapid construction device 1 can be dismantled and removed for the next construction.
Example 10
Referring to FIG. 10: on the ground, a floor slab template 3 is firstly paved on a cross beam 2 to form the rapid construction device 1, then fixed hooks 4 and 5 are respectively installed at two ends of the cross beam 2, reinforcing steel bar hanging teeth 12 and 13 are respectively installed on two ends of the cross beam 2, and a prestressed reinforcement 14 is fixedly installed between the reinforcing steel bar hanging teeth 12 and 13 and is positioned above the floor slab template 3. Meanwhile, the embedded rods 15 are installed on the floor slab formwork 3, the embedded rods 15 are tightly wrapped through the embedded positioning clamps 16 and are fixed on the floor slab formwork 3, and the embedded rods 15 are located in concrete when the concrete is poured so as to prevent the embedded rods from floating upwards or moving in the pouring process. Because the embedded rod 15 is made of light building materials, the strength of the embedded rod is far lower than that of concrete, and the embedded rod does not play a supporting role, but the embedded rod is equivalent to a cavity in terms of mechanical strength, so that the poured concrete has a cavity effect, and the span of floors is increased. Meanwhile, the light building material also has the functions of heat insulation and sound insulation, and the weight of a floor can be reduced. And after the installation, hoisting the concrete to the bearing wall 8 or/and the bearing 9 for pouring concrete.
The floor form 3 can be adjusted to be horizontal by the height adjusting screw 10. After the concrete is cured, the prestressed reinforcement 14 is fixed in the concrete, and then the reinforcement teeth 12 and 13 are pulled out. Since the prestressed reinforcement 14 has tension and is fixed by the concrete, the prestressed reinforcement can exert a back tension on the concrete, thereby achieving the effect of prestressing. The quick construction device 1 can be removed for the next construction by loosening the fixing hooks 4 and 5.
Finally, it must be said here that: the above embodiments are only used for further detailed description of the technical solutions of the present invention, and should not be understood as limiting the scope of the present invention, and the insubstantial modifications and adaptations made by those skilled in the art according to the above descriptions of the present invention are within the scope of the present invention.
Claims (7)
1. A rapid construction method for a floor slab comprises a rapid construction device, wherein the rapid construction device comprises a floor slab template and a cross beam for supporting the floor slab template, and two ends of the cross beam are connected with a bearing wall or/and a bearing beam; the rapid construction method comprises the following operations:
a1) laying a floor slab template on a cross beam in the rapid construction device;
b1) fixing parts are arranged at two ends of the cross beam;
c1) hoisting the assembly formed in the step b1) to a corresponding bearing wall or/and a bearing beam, and then carrying out the next construction;
the method is characterized in that: before hoisting, fixing steel bar hanging teeth at two ends of the cross beam, fixing two ends of the prestressed steel bar after pretensioning on the steel bar hanging teeth at two ends of the cross beam, and then hoisting.
2. The rapid construction method according to claim 1, wherein: before hoisting, a plurality of embedded rods are embedded in the floor slab template, and are positioned on the floor slab through positioning pieces, and then hoisting is carried out; the embedded rod is made of light building materials.
3. The rapid construction method according to claim 1, wherein: before hoisting, fixing steel bar hanging teeth at two ends of the cross beam, fixing two ends of the prestressed steel bars after pretensioning on the steel bar hanging teeth at two ends of the cross beam, embedding a plurality of embedded rods on the floor slab template, positioning the embedded rods on the floor slab through positioning pieces, and hoisting; the embedded rod is made of light building materials.
4. The rapid construction method according to claim 1, the fixing member being a hook.
5. The rapid construction method according to claim 1, wherein: and supporting rods are arranged at two ends of the cross beam and are connected with the bearing wall or/and the bearing beam through the supporting rods.
6. The rapid construction method according to claim 5, wherein: one or more middle supporting rods are arranged in the middle of the cross beam to ensure the levelness of the cross beam.
7. The rapid construction method according to claim 1, wherein: one or more height adjusting pieces are further arranged on the cross beam to adjust the levelness of the floor slab formwork.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610565042.9A CN107630554B (en) | 2016-07-18 | 2016-07-18 | Rapid construction device and method for floor slab |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610565042.9A CN107630554B (en) | 2016-07-18 | 2016-07-18 | Rapid construction device and method for floor slab |
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| CN107630554A CN107630554A (en) | 2018-01-26 |
| CN107630554B true CN107630554B (en) | 2021-04-30 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2140928Y (en) * | 1992-08-22 | 1993-08-25 | 北京市建筑工程研究所 | Multi-functional form supporting beam |
| CN1368585A (en) * | 2001-02-03 | 2002-09-11 | 朱其聪 | Technology for in-situ casting prestressed hollow floor concrete slab |
| CN1851191A (en) * | 2006-05-18 | 2006-10-25 | 刘建康 | Construction method for making congruent floor using upper support frame |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100504264B1 (en) * | 2002-11-12 | 2005-08-03 | 노윤근 | Apparatus for reinforcing slab of girder bridge using steel wire and reinforcing method using the apparatus |
| CN101481935B (en) * | 2009-01-20 | 2011-02-16 | 常州天普马鞍板有限公司 | Prestressed reinforcement concrete double T plate, tire shuttering thereof and production method |
| CN102169068B (en) * | 2010-12-31 | 2012-09-26 | 扬州大学 | Loading method for concrete member flexural test |
| CN103206084A (en) * | 2012-01-17 | 2013-07-17 | 上海奇谋能源技术开发有限公司 | Material-saving construction method of cast-in-place floor |
| JP2014227754A (en) * | 2013-05-24 | 2014-12-08 | 北川工業株式会社 | Bridge girder and construction method of bridge girder |
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2016
- 2016-07-18 CN CN201610565042.9A patent/CN107630554B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2140928Y (en) * | 1992-08-22 | 1993-08-25 | 北京市建筑工程研究所 | Multi-functional form supporting beam |
| CN1368585A (en) * | 2001-02-03 | 2002-09-11 | 朱其聪 | Technology for in-situ casting prestressed hollow floor concrete slab |
| CN1851191A (en) * | 2006-05-18 | 2006-10-25 | 刘建康 | Construction method for making congruent floor using upper support frame |
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