CN110761419A - Construction method for three-dimensional positioning accuracy of prefabricated house foundation connecting piece - Google Patents
Construction method for three-dimensional positioning accuracy of prefabricated house foundation connecting piece Download PDFInfo
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- CN110761419A CN110761419A CN201911041320.0A CN201911041320A CN110761419A CN 110761419 A CN110761419 A CN 110761419A CN 201911041320 A CN201911041320 A CN 201911041320A CN 110761419 A CN110761419 A CN 110761419A
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- precast
- connecting piece
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- 238000010276 construction Methods 0.000 title claims abstract description 80
- 229910000831 Steel Inorganic materials 0.000 claims description 35
- 239000010959 steel Substances 0.000 claims description 35
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 238000003466 welding Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a construction method for accurately positioning a prefabricated house foundation connecting piece in three dimensions, which comprises the following steps: (1) building a construction foundation on a construction site; (2) providing a precast beam embedded with an embedded connecting piece, and rotating the precast beam to the corresponding upper part of the construction foundation; (3) adjusting the precast beam in the horizontal direction and the height direction to accurately position the pre-buried connecting piece on the precast beam in the three-dimensional direction relative to the construction foundation; and (4) pouring concrete to fix the precast beam and the construction foundation together; to simplify the process and solve the problem of inaccurate positioning.
Description
Technical Field
The invention relates to the field of buildings, in particular to a construction method for accurately positioning a prefabricated house foundation connecting piece in three dimensions.
Background
In a fabricated building, a concrete foundation and a concrete precast element are indispensable combined bodies. In which a concrete prefabricated part (such as, but not limited to, a precast beam, a precast wall body, or a precast stairway) is installed on a concrete foundation through anchor plates or bolts, and thus, the anchor plates or bolts (collectively referred to as embedded connectors) need to be embedded in the concrete foundation. The embedding accuracy of the anchor plates or bolts on the concrete foundation is very important to influence the installation quality of the concrete prefabricated parts, particularly the dry connection of the concrete prefabricated parts.
At present, in the existing construction method, a foundation is built on the ground or a wall of a construction site, anchor plates or bolts are installed in the foundation according to a layout of the anchor plates or bolts, and concrete is poured into the foundation to achieve the purpose of embedding the anchor plates or bolts in the concrete foundation.
However, when the constructor installs the anchor foot plates or bolts, the anchor foot plates or bolts need to be positioned one by one, so that the process is complicated, and the problem of inaccurate positioning is easy to occur.
Therefore, a construction method for accurately positioning the prefabricated house foundation connecting piece in three dimensions is urgently needed to overcome the defects.
Disclosure of Invention
The invention aims to provide a construction method for accurately positioning a prefabricated house foundation connecting piece in three dimensions, which can simplify the process and solve the problem of inaccurate positioning.
In order to achieve the purpose, the construction method for the three-dimensional positioning accuracy of the prefabricated house foundation connecting piece comprises the following steps: (1) building a construction foundation on a construction site; (2) providing a precast beam embedded with an embedded connecting piece, and rotating the precast beam to the corresponding upper part of the construction foundation; (3) adjusting the precast beam in the horizontal direction and the height direction to accurately position the pre-buried connecting piece on the precast beam in the three-dimensional direction relative to the construction foundation; and (4) pouring concrete to fix the precast beam and the construction foundation together.
Preferably, in the step (1), the building of the foundation includes a step of building a fixed beam model groove on the ground or a wall and a step of laying a fixed beam steel bar in the fixed beam model groove; correspondingly, in the step (4), concrete is poured into the fixed beam mold groove.
Preferably, in the step (1), the building of the foundation includes a step of building a fixed beam model groove on the ground or a wall, a step of laying a fixed beam steel bar in the fixed beam model groove, a step of placing an upward external connecting bar on the fixed beam steel bar, and a step of pouring concrete into the fixed beam model groove to form a fixed beam, so that the external connecting bar extends upward out of the fixed beam; correspondingly, in the step (2), a reserved through hole is also prefabricated on the precast beam, so that the external connecting rib is inserted into the reserved through hole in a clearance fit manner when the precast beam rotates to a position above the corresponding building foundation; and (4) pouring concrete into the reserved through holes.
Preferably, before or after the construction of the construction foundation, the construction method for accurately positioning the prefabricated house foundation connecting piece in three dimensions of the invention further comprises the step of laying a concrete layer on the ground or the wall.
Preferably, in the step (2), the precast beam is manufactured by the following steps:
a. manufacturing a mould according to a drawing;
b. placing the pre-buried connecting piece and the precast beam steel bar in a mould, and fixing the pre-buried connecting piece; and
c. and pouring concrete into the mold.
Preferably, in the step b, a step of installing the connecting bars in the mold is further included, so that the connecting bars on the precast beam extend downward out of the precast beam, and the connecting bars extend into the reinforcing bars of the fixed beam when the precast beam is rotated to be positioned above the corresponding foundation.
Preferably, the embedded connector comprises an anchor plate and a bolt.
Preferably, before turning the precast girders over the corresponding building foundations, a step of assembling the precast girders on three-dimensional adjusting devices suspending the precast girders over the corresponding building foundations is further included.
Preferably, the three-dimensional adjusting device comprises a first height adjusting bearing platform, a second height adjusting bearing platform, a first channel steel, a second channel steel stacked above the first channel steel, and a horizontal lead screw for adjusting the horizontal position of the second channel steel relative to the first channel steel along the horizontal direction, the top ends of the first height adjusting bearing platform and the second height adjusting bearing platform are assembled at the first channel steel, and the precast beam is suspended below the first channel steel through the assembly connection of the embedded connecting piece and the second channel steel.
Preferably, in the step (2), the precast beam is manufactured by the following steps:
a. manufacturing a mould according to a drawing;
b. placing the pre-buried connecting piece, the precast beam steel bar and the structure for forming the reserved through hole in a mould, and fixing the pre-buried connecting piece; and
c. and pouring concrete into the mold.
Compared with the prior art, the position of each embedded connecting piece on the precast beam is ensured by the die for manufacturing the precast beam by using the precast beam, so that the position accuracy of the embedded connecting pieces on the precast beam is ensured; then, when the precast beam is rotated to the position above the corresponding building foundation built on the construction site, the precast beam is adjusted in the horizontal direction and the height direction, so that each embedded connecting piece is accurately positioned in the three-dimensional direction along with the precast beam relative to the building foundation, the situation that constructors need to position the embedded connecting pieces one by one is avoided, the process is simplified, and the problem that each embedded connecting piece is inaccurate in positioning is solved.
Drawings
Fig. 1 is a flow chart of a construction method for accurately positioning the three-dimensional position of the prefabricated house foundation connecting piece according to the invention.
Fig. 2 is a schematic structural view of an embodiment of a precast beam used in the construction method of the present invention.
Fig. 3 is a schematic structural view of another embodiment of a precast beam used in the construction method of the present invention.
Fig. 4 is a schematic view of the structure of the precast beam shown in fig. 2 when it is rotated to and positioned with respect to a construction base according to an embodiment.
Fig. 5 is a schematic view of the structure of the precast beam shown in fig. 3 when it is turned to and positioned with respect to another embodiment of the construction foundation.
Fig. 6 is a plan view showing only the construction foundation after hiding the precast girders and the three-dimensional adjusting means shown in fig. 4.
Fig. 7 is a plan view of fig. 4 showing the precast girders, the three-dimensional adjusting means, and the construction base.
Detailed Description
In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.
Referring to fig. 1, the construction method for accurately positioning the three-dimensional position of the prefabricated house foundation connecting piece of the present invention includes the following steps:
s001, building a construction foundation 10 (10') on a construction site. Specifically, the construction of the foundation 10 (10') is carried out in two ways: in fig. 4, the first mode of construction of the construction foundation 10 includes a step of constructing a fixed beam molding groove 11 on the ground and a step of laying a fixed beam reinforcing bar 12 in the fixed beam molding groove 11. In fig. 5, the second construction of the foundation 10 'includes the steps of constructing the fixed beam mold groove 11 on the ground, laying the fixed beam reinforcement 12 in the fixed beam mold groove 11, placing the upward external connection rib 13 on the fixed beam reinforcement 12, and pouring the concrete 14 into the fixed beam mold groove 11 to form the fixed beam, that is, in the second construction, the foundation 10' is the fixed beam in which the external connection rib 13 is protruded upward; it is understood that the construction site of the construction foundation 10 (10') can also be on a wall, and thus is not limited to the above examples.
S002, providing a precast beam 20(20 ') embedded with the embedded connectors 21, and turning the precast beam 20(20 ') to the position above the corresponding building foundation 10(10 '). Specifically, the precast girders 20 are manufactured in two ways: in fig. 2, the precast girders 20 of the first mode are manufactured by the steps of: a. manufacturing a mould according to a drawing; b. placing the pre-buried connecting piece 21, the precast beam steel bars 22 and the connecting steel bars 24 in a mould, and fixing the pre-buried connecting piece 21; and c, pouring concrete 23 into the mould; wherein the coupling bars 24 of the precast girders 20 are extended downward from the precast girders 20 (see fig. 2), and the coupling bars 24 are further extended into the fixing beam bars 12 when the precast girders 20 are rotated to be correspondingly above the construction foundation 10, as shown in fig. 3. In fig. 3, the second type of precast beam 20' is manufactured by the following steps: a. manufacturing a mould according to a drawing; b. placing the pre-buried connecting piece 21, the precast beam steel bar 22 and a structure for forming the reserved through hole 25 in a mold, and fixing the pre-buried connecting piece 21; and c, pouring concrete 23 into the mould; so that the external connection ribs 13 are inserted into the reserved through holes 25 with a clearance fit when the precast girders 20 'are rotated to be correspondingly over the construction foundations 20', as shown in fig. 5. It is understood that, in the manufacturing step of the precast beam 20 according to the first embodiment, the step of placing the connecting bars 24 on the mold may be eliminated according to actual needs, but not limited thereto.
S003, adjusting the precast beam 20(20 ') in the horizontal direction and the height direction to accurately position the embedded connectors 21 on the precast beam 20(20 ') in the three-dimensional direction relative to the construction foundation 10(10 ');
and S004, pouring concrete to fix the precast girders 20(20 ') and the construction foundation 10 (10'). Specifically, for the first mode of construction of the foundation 10, concrete is poured into the fixed beam mold grooves 11; for the second mode of the construction foundation 10', concrete is poured into the reserved through holes 25; the above-mentioned pouring method can better improve the bonding strength between the precast girders 20 and the foundation 10, and between the precast girders 20 'and the foundation 10'. More specifically, the following:
as shown in fig. 4 and 5, before or after the construction of the construction foundation 10(10 '), the construction method for the prefabricated house foundation connection member of the present invention with accurate three-dimensional positioning further includes the step of laying a concrete layer 30 on the ground to provide support for the three-dimensional adjusting means 40 described below by means of the concrete layer 30, so that the three-dimensional adjusting means 40 more reliably suspends the precast girders 20(20 ') above the construction foundation 10(10 ') under the support of the concrete layer 30, thereby facilitating the adjustment of the operator in three-dimensional orientation; of course, the concrete layer 30 may be laid on the wall, and the laying position is not limited thereto. Specifically, before the precast girders 20(20 ') are turned to be correspondingly above the construction foundation 10 (10'), there is further included a step of assembling the precast girders 10(10 ') on the three-dimensional adjusting devices 40, and the three-dimensional adjusting devices 40 suspend the precast girders 20 (20') to be correspondingly above the construction foundation 10(10 '), so as to improve the convenience of handling the precast girders 20 (20'). For example, the three-dimensional adjusting device 40 includes a first height adjusting bearing platform 41, a second height adjusting bearing platform 42, a first channel steel 43, a second channel steel 44 stacked above the first channel steel 43, and a horizontal screw 45 for adjusting the horizontal position of the second channel steel 44 relative to the first channel steel 43 along the horizontal direction, the top ends of the first height adjusting bearing platform 41 and the second height adjusting bearing platform 42 are assembled at the first channel steel 43, and the precast beam 20(20 ') is suspended below the first channel steel 43 through the assembly connection of the embedded connector 21 and the second channel steel 43, so that the precast beam 20 (20') is suspended above the construction foundation 10(10 ') by the three-dimensional adjusting device 40 before being poured and fixed with the construction foundation 10 (10'), thereby improving the convenience of the adjusting operation; in addition, the embedded connector 21 includes anchor plates 212 and bolts 211, the anchor plates 212 are used for facilitating the welding of the adjacent precast girders 20(20 ') together through a welding process, the welding joints 25 between the adjacent precast girders 20 are shown in fig. 7, and the precast girders 20 (20') are connected with the second channel steels 43 through the bolts 211 in an assembling manner, but not limited thereto.
As shown in fig. 6 and 7, the precast girders 20 are turned to the upper side of the construction base 10 by the three-dimensional adjusting device 40, and the height and horizontal direction of the precast girders 20 are adjusted by the three-dimensional adjusting device 40. Specifically, in fig. 7, two adjacent precast girders 20 are spliced, and each precast girder 20 uses two three-dimensional adjusting devices 40, and each three-dimensional adjusting device 40 is responsible for adjusting one end of the same precast girder 20, but not limited thereto.
Compared with the prior art, the position of each embedded connector 21 on the precast beam 20(20 ') is ensured by the mould for manufacturing the precast beam 20 (20') through the use of the precast beam 20(20 '), so that the position accuracy of the embedded connector 21 on the precast beam 20 (20') is ensured; then, when the precast beam 20(20 ') is rotated to a position above the corresponding building foundation 10(10 ') constructed by the construction site, the precast beam 20(20 ') is adjusted in the horizontal direction and the height direction, so that the pre-buried connectors 21 are accurately positioned in the three-dimensional direction along with the precast beam 20(20 ') relative to the building foundation 10(10 '), the situation that the constructors need to position the pre-buried connectors 21 one by one is avoided, the process is simplified, and the problem that the positioning of the pre-buried connectors 21 is inaccurate is solved.
The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.
Claims (10)
1. A construction method for accurately positioning a prefabricated house foundation connecting piece in three dimensions is characterized by comprising the following steps:
(1) building a construction foundation on a construction site;
(2) providing a precast beam embedded with an embedded connecting piece, and rotating the precast beam to the corresponding upper part of the construction foundation;
(3) adjusting the precast beam in the horizontal direction and the height direction to accurately position the pre-buried connecting piece on the precast beam in the three-dimensional direction relative to the construction foundation; and
(4) and pouring concrete to fix the precast beam and the construction foundation together.
2. The construction method for the prefabricated house foundation connecting member with the accurate three-dimensional positioning as claimed in claim 1, wherein in the step (1), the construction of the construction foundation comprises the steps of constructing a fixed beam mold groove on the ground or a wall and laying a fixed beam reinforcing steel bar in the fixed beam mold groove; correspondingly, in the step (4), concrete is poured into the fixed beam mold groove.
3. The construction method of the prefabricated house foundation connecting member with the accurate three-dimensional positioning as claimed in claim 1, wherein in the step (1), the construction of the construction foundation comprises a step of constructing a fixed beam model groove on the ground or a wall, a step of laying a fixed beam reinforcing bar in the fixed beam model groove, a step of placing an upward external connecting bar on the fixed beam reinforcing bar, and a step of pouring concrete into the fixed beam model groove to form the fixed beam, so that the external connecting bar extends upward out of the fixed beam; correspondingly, in the step (2), a reserved through hole is also prefabricated on the precast beam, so that the external connecting rib is inserted into the reserved through hole in a clearance fit manner when the precast beam rotates to a position above the corresponding building foundation; and (4) pouring concrete into the reserved through holes.
4. The construction method for the prefabricated house foundation connecting member with the accurate three-dimensional positioning as claimed in claim 1, further comprising the step of laying a concrete layer on the ground or the wall before or after the construction of the construction foundation.
5. The construction method for the three-dimensional positioning accuracy of the prefabricated house foundation connecting pieces according to claim 2, wherein in the step (2), the prefabricated beam is manufactured by the steps of:
a. manufacturing a mould according to a drawing;
b. placing the pre-buried connecting piece and the precast beam steel bar in a mould, and fixing the pre-buried connecting piece; and
c. and pouring concrete into the mold.
6. The construction method for the prefabricated house foundation connecting member with the accurate three-dimensional positioning as claimed in claim 5, further comprising the step of installing the connecting bars in the mold in step b such that the connecting bars on the prefabricated beam extend downward out of the prefabricated beam and the connecting bars extend into the reinforcing bars of the fixed beam when the prefabricated beam is rotated to be correspondingly above the construction foundation.
7. The construction method for the prefabricated house foundation connecting piece to be positioned accurately in three dimensions as claimed in claim 1, wherein the embedded connecting piece comprises an anchor plate and a bolt.
8. The construction method for the prefabricated house foundation connecting member to be positioned three-dimensionally accurately according to claim 1, further comprising the step of assembling the precast girders to three-dimensional adjusting means for suspending the precast girders above the corresponding construction base before turning the precast girders above the corresponding construction base.
9. The construction method for the prefabricated house foundation connecting piece to be accurately positioned in the three-dimensional mode is characterized in that the three-dimensional adjusting device comprises a first height adjusting bearing platform, a second height adjusting bearing platform, a first channel steel, a second channel steel stacked above the first channel steel and a horizontal lead screw for adjusting the horizontal position of the second channel steel relative to the first channel steel along the horizontal direction, the top ends of the first height adjusting bearing platform and the second height adjusting bearing platform are assembled at the first channel steel, and the prefabricated beam is suspended below the first channel steel through the assembly connection of embedded connecting pieces and the second channel steel.
10. The construction method for the three-dimensional positioning accuracy of the prefabricated house foundation connecting pieces according to the claim 3, wherein in the step (2), the prefabricated beam is manufactured by the steps of:
a. manufacturing a mould according to a drawing;
b. placing the pre-buried connecting piece, the precast beam steel bar and the structure for forming the reserved through hole in a mould, and fixing the pre-buried connecting piece; and
c. and pouring concrete into the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911041320.0A CN110761419A (en) | 2019-10-29 | 2019-10-29 | Construction method for three-dimensional positioning accuracy of prefabricated house foundation connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911041320.0A CN110761419A (en) | 2019-10-29 | 2019-10-29 | Construction method for three-dimensional positioning accuracy of prefabricated house foundation connecting piece |
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| CN110761419A true CN110761419A (en) | 2020-02-07 |
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| CN201911041320.0A Pending CN110761419A (en) | 2019-10-29 | 2019-10-29 | Construction method for three-dimensional positioning accuracy of prefabricated house foundation connecting piece |
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| CN102808465A (en) * | 2012-08-08 | 2012-12-05 | 沈阳建筑大学 | Assembly connecting structure and assembly connecting method of assembled concrete frame and shear wall combination |
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| CN108547377A (en) * | 2018-05-17 | 2018-09-18 | 东北林业大学 | A kind of novel fabricated concrete continuous beam dry type welding node |
| CN208009467U (en) * | 2018-03-23 | 2018-10-26 | 中建海峡建设发展有限公司 | A kind of foundation bolt installation control device |
| CN109914467A (en) * | 2019-04-04 | 2019-06-21 | 南京中核能源工程有限公司 | A kind of foundation bolt positioning device convenient for adjusting |
| US20190257081A1 (en) * | 2018-02-21 | 2019-08-22 | Scott Edward Heatly | Precast modular structural building system and method |
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2019
- 2019-10-29 CN CN201911041320.0A patent/CN110761419A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808465A (en) * | 2012-08-08 | 2012-12-05 | 沈阳建筑大学 | Assembly connecting structure and assembly connecting method of assembled concrete frame and shear wall combination |
| CN104775545A (en) * | 2015-03-09 | 2015-07-15 | 沈阳建筑大学 | Novel disassembling component for assembling type concrete frame and shear wall structure and connecting method |
| CN106400846A (en) * | 2016-11-25 | 2017-02-15 | 安徽瑞研新材料技术研究院有限公司 | Positioning device for walling crib embedding |
| CN107675838A (en) * | 2017-09-26 | 2018-02-09 | 中国二十二冶集团有限公司 | Assembled architecture sidewalk brick precast beam embedded sleeve barrel joint bar construction method |
| US20190257081A1 (en) * | 2018-02-21 | 2019-08-22 | Scott Edward Heatly | Precast modular structural building system and method |
| CN208009467U (en) * | 2018-03-23 | 2018-10-26 | 中建海峡建设发展有限公司 | A kind of foundation bolt installation control device |
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Application publication date: 20200207 |