CN113622244A - Precast concrete panel, connection structure of precast concrete panels, and installation method of precast concrete panels - Google Patents
Precast concrete panel, connection structure of precast concrete panels, and installation method of precast concrete panels Download PDFInfo
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- CN113622244A CN113622244A CN202110760102.3A CN202110760102A CN113622244A CN 113622244 A CN113622244 A CN 113622244A CN 202110760102 A CN202110760102 A CN 202110760102A CN 113622244 A CN113622244 A CN 113622244A
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 92
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000009434 installation Methods 0.000 title claims abstract description 7
- 230000000694 effects Effects 0.000 claims abstract description 12
- 239000004567 concrete Substances 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000011440 grout Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 238000010276 construction Methods 0.000 description 15
- 239000004568 cement Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C5/00—Pavings made of prefabricated single units
- E01C5/06—Pavings made of prefabricated single units made of units with cement or like binders
- E01C5/08—Reinforced units with steel frames
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/52—Apparatus for laying individual preformed surfacing elements, e.g. kerbstones
Abstract
The invention provides a precast concrete panel which comprises a precast concrete panel body, wherein embedded rods and reserved grooves are arranged on the edges of two side plates of the precast concrete panel body in a staggered mode and are used for splicing and connecting the precast concrete panel. The invention provides a connecting structure of precast concrete panels, which comprises a plurality of precast concrete panels, wherein the precast concrete panels are spliced and connected. The invention also provides an installation method of the precast concrete panel. The invention provides a precast concrete pavement slab connection structure based on staggered pull rod connection, which solves the problem that the strength of a single-side slab edge is seriously weakened and the force transmission effect is influenced because the reserved groove is too close; and the staggered lapping can ensure that the force transmission among the plates is more balanced, and the integrity between the plates is stronger.
Description
Technical Field
The invention relates to the field of fabricated cement concrete, in particular to a precast concrete panel, a connection structure of the precast concrete panel and an installation method of the precast concrete panel.
Background
With the rapid development of infrastructure construction in China. In the aspect of airports, large-area structural quick repair under the condition of no navigation is generally needed, the fabricated cement concrete is the best choice, in addition, the number and the density of domestic airports are greatly different compared with those of foreign countries, the fabricated cement concrete pavement mode is directly adopted for newly built airports in the future, a set of mature technology is constructed, and the core advantages of the fabricated cement concrete are that the speed, the maintenance are convenient, and the reutilization are achieved; in the aspects of highways, container freight yards and the like, more and more precast concrete pavement slabs are applied to actual construction, and the assembly type scheme is gradually more and more important depending on the advantages of the assembly type scheme and is more and more commonly used. The high requirements on the temperature stress and the upper load in the precast concrete structure are provided aiming at the lap joint between the assembled panels, wherein the load transfer effect and the construction convenience of panel splicing are the core requirements of panel pavement.
The existing prefabricated concrete panel connecting structure adopting the pull rod and the groove in the market has the defects that only the pull rod is arranged on one side or only the groove is arranged on one side, so that the phenomenon that the strength of the plate edge is weakened too much due to excessive grooving of the plate edge easily occurs, and the using effect of the plate is influenced; secondly, the one-side slotting or one-side pull rod has poor meshing integrity, and the local damage of a certain side is easy to occur to influence the use of the plate; moreover, the steel bar pull rod on one side is densely arranged, the slotting quantity on one side is dense, the gravity center shift is large during hoisting, and the hoisting construction is more complicated.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a precast concrete panel, a connecting structure of the precast concrete panel and an installation method, has stronger integrity and good load transfer effect, can bear temperature stress, is convenient and fast to construct, and at least solves some problems in the prior art.
The invention is realized by the following steps:
the invention provides a precast concrete panel which comprises a precast concrete plate body, wherein two opposite side walls of the precast concrete plate body are respectively provided with an embedded rod and a reserved groove, and the embedded rods and the reserved grooves are used for splicing and connecting the precast concrete panel.
Preferably, two opposite longitudinal side walls of the precast concrete slab body are respectively provided with a pre-embedded longitudinal dowel bar along the longitudinal direction of the precast concrete slab body, a reserved groove on one side wall is arranged close to the slab top, the longitudinal dowel bar on the side wall is arranged close to the slab bottom, a reserved groove on the other side wall is arranged close to the slab bottom, and the longitudinal dowel bar on the side wall is arranged close to the slab top.
Preferably, the preformed groove on one side wall is a plate top groove, and the preformed groove on the other side wall is a plate bottom groove.
Preferably, two opposite transverse side walls of the precast concrete slab body are respectively provided with a pre-embedded transverse pull rod along the transverse direction of the precast concrete slab body, a reserved groove on one side wall is arranged close to the slab top, the transverse pull rod on the side wall is arranged close to the slab bottom, a reserved groove on the other side wall is arranged close to the slab bottom, and the transverse pull rod on the side wall is arranged close to the slab top.
Preferably, the preformed groove on one side wall is a plate top groove, and the preformed groove on the other side wall is a plate bottom groove.
Preferably, the caliber of the reserve groove gradually increases along the direction from inside to outside.
Preferably, the embedded rods and the reserved grooves on the side wall are arranged in a staggered mode.
The invention provides a connecting structure of precast concrete panels, which comprises a plurality of precast concrete panels, wherein the precast concrete panels are spliced and connected to form an assembled concrete panel.
The invention provides a method for installing a precast concrete panel, which comprises the following steps: s1, prefabricating the concrete panel in advance in a factory; s2, after the plate body, the embedded rod and the preformed groove are prefabricated in a prefabricating factory, the plate body, the embedded rod and the preformed groove are demoulded and stored; s3, transporting the precast concrete panel prepared in the step S2 to the site; s4, roughly adjusting horizontal alignment by hoisting, aligning and fitting the embedded rods and the reserved grooves between the precast concrete panels, and assembling; and S5, after the plates are assembled, grouting the bottoms and the plate seams of the plates through the grouting holes, and filling the reserved grooves with grout to bond the reserved rods and the plates so as to achieve the effects of bearing temperature stress and upper load.
Preferably, in step S1, the precast concrete panels are provided with embedded rods and preformed grooves in the longitudinal direction, the transverse direction or the periphery according to the actual connection requirement of the panels.
The invention has the following beneficial effects:
1. the concrete panel is prefabricated for the prefabrication factory, and the form is simple and clear, and the processing cost is low, and the site operation is swift.
2. The connection structure of the precast concrete pavement slab based on the staggered pull rod connection reduces the problems that the strength of the slab edge is seriously weakened and the force transmission effect is influenced because the reserved groove is too close to the slab edge on one side; and the staggered lapping can ensure that the force transmission among the plates is more balanced, and the integrity between the plates is stronger.
3. The prefabricated plate adopts a reserved groove on one side of a long (short) edge as a lower groove and an upper groove on one side; direct alignment is put into during the construction of assembling, and the pre-buried pole of next door plate is directly sat into to grooved bottom, and grooved top be the next door concatenation plate pre-buried pole directly fall into the inslot can, the construction is simple swift.
4. The embedded rod is embedded into the plate when the prefabricated plate in a factory is prefabricated, the preformed groove needs to follow the principle of small inside and large outside, and the template is convenient to remove when the prefabricated plate in the factory is prefabricated.
5. Crisscross pull rod that sets up all around, traditional unilateral mode board relatively, the focus is placed in the middle, for the symmetry board, is convenient for hoist and mount concatenation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a multi-slab assembly of a precast concrete panel based on staggered tie bar connection according to an embodiment of the present invention;
FIG. 2 is a perspective view of a precast concrete panel provided by an embodiment of the present invention;
FIG. 3 is a top view of a precast concrete panel provided by an embodiment of the present invention;
FIG. 4 is a left side view of a precast concrete panel provided by an embodiment of the present invention;
FIG. 5 is a front view of a precast concrete panel provided by an embodiment of the present invention;
FIG. 6 is a right side view of a precast concrete panel provided by an embodiment of the present invention;
fig. 7 is a rear view of a precast concrete panel provided by an embodiment of the present invention.
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.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1 to 7, an embodiment of the present invention provides a precast concrete panel, which includes a precast concrete plate body 1, where two opposite sidewalls of the precast concrete plate body 1 are respectively provided with an embedded rod (a longitudinal dowel bar 2 and a transverse tie bar 3) and a reserved groove, and the embedded rod and the reserved groove are used for splicing and connecting the precast concrete panel.
The caliber of the preformed groove is gradually increased along the direction from inside to outside. The embedded rod is embedded into the plate when the prefabricated plate in a factory is prefabricated, the preformed groove needs to follow the principle of small inside and large outside, and the template is convenient to remove when the prefabricated plate in the factory is prefabricated.
The pre-buried pole and the preformed groove on the lateral wall are arranged in a staggered mode. Crisscross pull rod that sets up all around, traditional unilateral mode board relatively, the focus is placed in the middle, for the symmetry board, is convenient for hoist and mount concatenation.
The concrete panel is prefabricated by a prefabrication factory, is transported to the site for direct paving and grouting, and has simple form, low processing cost and rapid site construction. The connection structure of the precast concrete pavement slab based on the staggered pull rod connection reduces the problems that the strength of the slab edge is seriously weakened and the force transmission effect is influenced because the reserved groove is too close to the slab edge on one side; and the staggered lapping can ensure that the force transmission among the plates is more balanced, and the integrity between the plates is stronger.
Along the vertical of precast concrete panel, all be equipped with pre-buried vertical dowel steel 2 on two vertical lateral walls that precast concrete plate body 1 is relative, wherein the preformed groove on the lateral wall is close to the board top and sets up, and vertical dowel steel 2 on this lateral wall is close to the board end and sets up, and the preformed groove on another lateral wall is close to the board end and sets up, and vertical dowel steel 2 on this lateral wall is close to the board top and sets up.
In the longitudinal direction of the precast concrete panel, the preformed groove on one side wall of two opposite side walls of the precast concrete panel body 1 is a plate top preformed groove (longitudinal top preformed groove 6), and the preformed groove on the other side wall is a plate bottom preformed groove (longitudinal bottom preformed groove 7). Vertical dowel steel 2 that sets up at the bottom of the board of being close to of adjacent precast concrete panel is directly sat downwards to vertical bottom preformed groove 7, and vertical dowel steel 2 that is close to the board top setting can directly fall into vertical top preformed groove 6 of adjacent precast concrete panel downwards, directly aligns when assembling the construction and puts into, and the construction is simple swift.
Along the horizontal of precast concrete panel, all be equipped with pre-buried transverse pull rod 3 on two relative transverse side walls of precast concrete plate body 1, the preformed groove on one of them lateral wall is close to the board top and sets up, and transverse pull rod 3 on this lateral wall is close to the board end and sets up, and the preformed groove on another lateral wall is close to the board end and sets up, and transverse pull rod 3 on this lateral wall is close to the board top and sets up.
In the transverse direction of the precast concrete panel, the preformed groove on one of the two opposite side walls of the precast concrete panel body 1 is a plate top preformed groove (transverse top preformed groove 4), and the preformed groove on the other side wall is a plate bottom preformed groove (transverse bottom preformed groove 5). Horizontal bottom preformed groove 5 directly sits into adjacent precast concrete panel's horizontal pull rod 3 that sets up near the board bottom downwards, and the horizontal pull rod 3 that sets up near the board top can directly fall into adjacent precast concrete panel's horizontal top preformed groove 4 downwards in, directly aligns when assembling the construction and puts into, and the construction is simple swift.
The second embodiment of the invention provides a connecting structure of precast concrete panels, which comprises a plurality of precast concrete panels, wherein the precast concrete panels are spliced and connected to form an assembled concrete panel.
The third embodiment of the invention provides a method for installing a precast concrete panel, which comprises the following steps: s1, prefabricating the concrete panel in advance in a factory; s2, after the plate body, the embedded rod and the preformed groove are prefabricated in a prefabricating factory, the plate body, the embedded rod and the preformed groove are demoulded and stored; s3, transporting the precast concrete panel prepared in the step S2 to the site; s4, roughly adjusting horizontal alignment by hoisting, aligning and fitting the embedded rods and the reserved grooves between the precast concrete panels, and assembling; and S5, after the plates are assembled, grouting the bottoms and the plate seams of the plates through the grouting holes, and filling the reserved grooves with grout to bond the reserved rods and the plates so as to achieve the effects of bearing temperature stress and upper load.
In step S1, according to the actual connection requirement of the slab, the precast concrete panel is provided with pre-buried rods and pre-grooves in the longitudinal direction, the transverse direction or the periphery.
In step S4, the bottom preformed groove is directly set down into the embedded rod of the adjacent precast concrete panel near the bottom of the slab, and the embedded rod near the top of the slab can directly fall down into the top preformed groove of the adjacent precast concrete panel.
The invention provides a prefabricated concrete panel connecting structure based on staggered pull rod connection and an installation method, and particularly aims at the connecting action among assembled concrete panels of airports, highways and container yards.
The invention combines the advantages of good force transmission, convenient construction and the like of the traditional pull rod connection, and further improves the strength of plate edges, the integrity of the plate and the convenience of construction by adopting a staggered pull rod connection mode.
The invention mainly comprises a precast concrete plate body 1, a longitudinal dowel bar 2, a transverse pull rod 3 and a preformed groove (comprising a transverse top preformed groove 4, a transverse bottom preformed groove 5, a longitudinal top preformed groove 6 and a longitudinal bottom preformed groove 7).
The concrete panel is prefabricated in advance for a factory, and is transported to a site for direct paving and grouting.
The pre-buried pole and the reservation groove need crisscross setting on the veneer, reduce the unilateral flange edge because of the reservation groove is too near to lead to the flange edge intensity to weaken seriously, influence the effect of biography power. And the staggered lapping can ensure that the force transmission among the plates is more balanced, and the integrity between the plates is stronger.
The plate adopts a reserved groove on one side of a long (short) edge as a lower groove and an upper groove on one side; direct alignment is put into during the construction of assembling, and the pre-buried pole of next door plate is directly sat into to grooved bottom, and grooved top be the next door concatenation plate pre-buried pole directly fall into the inslot can, the construction is simple swift.
The embedded rod is embedded into the plate when the prefabricated plate is prefabricated in a factory, and the preformed groove follows the principle of small inside and large outside, so that the form is convenient to disassemble.
The pull rods are arranged in a staggered mode around, the center of gravity of the plate is not shifted compared with that of a traditional unilateral mode plate, and hoisting and splicing are facilitated.
The concrete technology of the plate connecting structure is implemented as follows:
s1, according to the actual plate connection requirements, a longitudinal, transverse or peripheral connection structure mode can be selected, and a peripheral groove and tongue increasing mode can be considered for increasing the actual force transmission effect;
s2, prefabricating the plate, the plate pre-embedded rod and the plate preformed groove in a prefabricating factory, and then removing the mold for storage;
s3, transporting the prefabricated plates manufactured in the step S2 to a construction site, leveling and aligning through hoisting, aligning and matching pre-buried rods between the prefabricated plates with the reserved grooves, directly placing the lower grooves of the plates into the positions matched with the side pre-buried rods, matching the pre-buried rods of the plates with the upper grooves of the side rods, and finally achieving the purpose of connection and combination between plate blocks;
after the plates are assembled, grouting is carried out on the bottoms and the plate seams of the plates through the grouting holes, and the slots are filled with slurry, so that the rod pieces and the plates are bonded, and the effects of bearing temperature stress and upper load are achieved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A precast concrete panel characterized by: including the precast concrete plate body, all be equipped with pre-buried pole and preformed groove on two relative lateral walls of precast concrete plate body, pre-buried pole with the preformed groove is used for assembling of precast concrete panel and connects.
2. The precast concrete panel of claim 1, wherein: along the vertical of precast concrete panel, all be equipped with pre-buried vertical dowel steel on two vertical lateral walls that precast concrete plate body is relative, the reservation groove on one of them lateral wall is close to the board top and sets up, and vertical dowel steel on this lateral wall is close to the board end and sets up, and the reservation groove on another lateral wall is close to the board end and sets up, and vertical dowel steel on this lateral wall is close to the board top and sets up.
3. The precast concrete panel of claim 2, wherein: the preformed groove on one side wall is a plate top groove, and the preformed groove on the other side wall is a plate bottom groove.
4. The precast concrete panel of claim 1, wherein: along the horizontal of precast concrete panel, all be equipped with pre-buried transverse pull rod on two relative transverse side walls of precast concrete plate body, the preformed groove on one of them lateral wall is close to the board top and sets up, and transverse pull rod on this lateral wall is close to the board end and sets up, and the preformed groove on another lateral wall is close to the board end and sets up, and transverse pull rod on this lateral wall is close to the board top and sets up.
5. The precast concrete panel of claim 4, wherein: the preformed groove on one side wall is a plate top groove, and the preformed groove on the other side wall is a plate bottom groove.
6. The precast concrete panel of claim 1, wherein: the caliber of the preformed groove is gradually increased along the direction from inside to outside.
7. The precast concrete panel of claim 1, wherein: the pre-buried pole and the preformed groove on the lateral wall are arranged in a staggered mode.
8. A connection structure of precast concrete panels characterized in that: the prefabricated concrete panel assembly structure comprises a plurality of prefabricated concrete panels, wherein the prefabricated concrete panels are spliced and connected to form an assembly type concrete panel.
9. A method for installing a precast concrete panel, comprising the steps of: s1, prefabricating the concrete panel in advance in a factory; s2, after the plate body, the embedded rod and the preformed groove are prefabricated in a prefabricating factory, the plate body, the embedded rod and the preformed groove are demoulded and stored; s3, transporting the precast concrete panel prepared in the step S2 to the site; s4, roughly adjusting horizontal alignment by hoisting, aligning and fitting the embedded rods and the reserved grooves between the precast concrete panels, and assembling; and S5, after the plates are assembled, grouting the bottoms and the plate seams of the plates through the grouting holes, and filling the reserved grooves with grout to bond the reserved rods and the plates so as to achieve the effects of bearing temperature stress and upper load.
10. The precast concrete panel installation method of claim 9, wherein: in step S1, according to the actual connection requirement of the slab, the precast concrete panel is provided with pre-buried rods and pre-grooves in the longitudinal direction, the transverse direction or the periphery.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110760102.3A CN113622244A (en) | 2021-07-06 | 2021-07-06 | Precast concrete panel, connection structure of precast concrete panels, and installation method of precast concrete panels |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110760102.3A CN113622244A (en) | 2021-07-06 | 2021-07-06 | Precast concrete panel, connection structure of precast concrete panels, and installation method of precast concrete panels |
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| CN113622244A true CN113622244A (en) | 2021-11-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114263076A (en) * | 2021-11-26 | 2022-04-01 | 中建科技集团有限公司 | Assembled precast concrete pavement slab and construction method thereof |
| CN115110375A (en) * | 2022-06-27 | 2022-09-27 | 中国民航大学 | FRP reinforcing fiber cloth concrete pavement board suitable for airport pavement |
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| CN211522711U (en) * | 2019-03-15 | 2020-09-18 | 天津市丙辉建材科技开发有限公司 | Shear lock type precast concrete pavement |
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| CN114263076A (en) * | 2021-11-26 | 2022-04-01 | 中建科技集团有限公司 | Assembled precast concrete pavement slab and construction method thereof |
| CN115110375A (en) * | 2022-06-27 | 2022-09-27 | 中国民航大学 | FRP reinforcing fiber cloth concrete pavement board suitable for airport pavement |
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