CN219240842U - Precast concrete post node connection structure - Google Patents
Precast concrete post node connection structure Download PDFInfo
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- CN219240842U CN219240842U CN202222570970.8U CN202222570970U CN219240842U CN 219240842 U CN219240842 U CN 219240842U CN 202222570970 U CN202222570970 U CN 202222570970U CN 219240842 U CN219240842 U CN 219240842U
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Abstract
The utility model discloses a prefabricated concrete column joint connection structure, wherein a plurality of first reinforcing steel bars protruding upwards are arranged on a lower prefabricated concrete column or a lower cast-in-situ concrete column, a prefabricated hollow closed connection component is connected to a supporting component, the prefabricated hollow closed connection component comprises a first steel plate hoop, a concrete layer or a mortar layer is poured on the outer side of the first steel plate hoop, the prefabricated hollow closed connection component is sleeved on the outer side of the plurality of first reinforcing steel bars, an upper prefabricated concrete column is further connected to the prefabricated hollow closed connection component, a second reinforcing steel bar which can extend into the prefabricated hollow closed connection component is embedded in the upper prefabricated concrete column, a pouring cavity is formed among the upper prefabricated concrete column, the prefabricated hollow closed connection component and the supporting component in an enclosing mode, the first steel plate hoop is formed by enclosing and welding steel plates, a punching hole is formed in the steel plate, a flanging embedded in the concrete layer or the mortar layer is formed in the position of the punching hole, and a reinforcing steel plate and/or a stirrup are arranged on the inner side of the steel plate. The utility model has convenient installation and high construction efficiency.
Description
[ field of technology ]
The utility model relates to a prefabricated concrete column node connecting structure.
[ background Art ]
The assembled building is formed by assembling prefabricated parts on a construction site, and the assembled building keeps developing rapidly along with the vigorous popularization of the modern industrialized construction by the nation. Precast concrete columns are common assembly type building parts, and joints connected among the precast concrete columns are taken as important joints of an assembly type structure, so that the important points and the difficulties to be solved in the assembly type building research are all the time.
According to the stress characteristics of the frame structure, the fabricated concrete frame column is generally formed by connecting an upper prefabricated concrete solid column and a lower prefabricated concrete solid column through joints, wherein a second steel bar 5b and a sleeve a are arranged in the upper concrete solid column 4b, and a first steel bar 2b is arranged in the lower concrete solid column 3b, as shown in fig. 7 to 10, but in the mode, the upper concrete solid column 4b is required to be lifted and then the sleeve a and the steel bars 2b below are required to be aligned one by one, the construction difficulty is high, overlapping force transmission is not carried out between the upper steel bar and the lower steel bar, and the connection effect is difficult to be satisfied. And the condition that the upper concrete solid column bends the steel bars also exists, after the sleeve is sleeved on the steel bars, the inward grouting is difficult, and the cost of the sleeve is high.
The present utility model has been developed in response to the above-described drawbacks.
[ utility model ]
The utility model aims to overcome the defects of the prior art and provides a prefabricated concrete column node connecting structure convenient to install.
The utility model is realized by the following technical scheme:
the utility model provides a precast concrete post node connection structure, includes concrete pouring fashioned support component 2, lower precast concrete post 21 or cast-in-place concrete post 22 that support component 2 connects have upwards protruding many first reinforcing bars 3, support component 2 on be connected with prefabricated hollow closed connecting element 1, prefabricated hollow closed connecting element 1 include first steel sheet hoop 11, first steel sheet hoop 11 outside pour concrete layer 12 or mortar layer 13 together with it is fixed, prefabricated hollow closed connecting element 1 cover in the outside of many first reinforcing bars 3, prefabricated hollow closed connecting element 1 on still be connected with precast concrete post 4, last precast concrete post 4 in bury the many second reinforcing bars 5 that protrusion its lower extreme and can stretch into in the prefabricated hollow closed connecting element 1, the concrete pouring device is characterized in that a pouring cavity 100 for concrete pouring is formed between the upper precast concrete column 4, the precast hollow closed connecting member 1 and the supporting member 2 in a surrounding mode, concrete capable of connecting the upper precast concrete column 4, the precast hollow closed connecting member 1 and the supporting member 2 together is poured in the pouring cavity 100, the first steel plate hoop 11 is formed by surrounding and welding steel plates 111, a plurality of punching holes 112 are formed in the steel plates 111, a flange 113 formed in punching is formed in the position, located in the punching holes 112, of the steel plates 111, the flange 113 is embedded into a concrete layer 12 or a mortar layer 13, and protruding reinforcing steel plates 114 and/or stirrups 6 in the horizontal directions are arranged on the inner side of the steel plates 111.
The upper precast concrete column 4 is provided with a pouring channel 41 which can be communicated with the pouring cavity 100.
The prefabricated hollow closed connecting component 1 is provided with prefabricated mounting holes 14 which can be conveniently lifted by lifting equipment and can be used for a tie bar to pass through or a concrete or a vibrating rod to pass through to vibrate the concrete when concrete is poured into the pouring cavity 100, and the prefabricated mounting holes 14 are synchronously sealed by the concrete when the concrete in the pouring cavity 100 is poured.
The shape of the punched hole 112 is rectangular, square, circular or elliptical.
The cross section of the prefabricated hollow closed connecting component 1 is rectangular, square, round, oval, U-shaped or L-shaped.
The height of the first steel plate hoop 11, the concrete layer 12 or the mortar layer 13 is 400mm-1500mm, the thickness of the first steel plate hoop 11 is 0.5mm-10mm, and the thickness of the concrete layer 12 or the mortar layer 13 is 9.5mm-50mm.
The lower end of the precast concrete column 4 is provided with a second steel plate hoop 42, the height of the second steel plate hoop 42 is 10mm-50mm, and the second steel plate hoop 42 is welded with all or part of adjacent second steel bars 5.
The first steel bar 3 adjacent to all or part of the first steel plate hoop 11 is welded with the first steel plate hoop 11, and the first steel plate hoop 11 is welded with the second steel plate hoop 42.
The ends of the first steel bar 3 and the second steel bar 5 are bent; or, the end parts of the first steel bar 3 and the second steel bar 5 are welded with anchor bars 7; or, the end parts of the first steel bar 3 and the second steel bar 5 are welded with anchor plates; or, the end parts of the first steel bar 3 and the second steel bar 5 are connected with bolt anchor heads.
A first bonding mortar layer 81 is arranged between the prefabricated hollow closed connecting component 1 and the supporting component 2, and a second bonding mortar layer 82 is arranged between the prefabricated hollow closed connecting component 1 and the upper prefabricated concrete column 4.
Compared with the prior art, the utility model has the following advantages: when the prefabricated hollow closed connecting component is installed, the prefabricated hollow closed connecting component is firstly lifted and sleeved on the outer sides of the first reinforcing steel bars, then the upper prefabricated concrete column is lifted, a plurality of second reinforcing steel bars in the upper prefabricated concrete column are inserted into the prefabricated hollow closed connecting component, then the position of the upper prefabricated concrete column relative to the prefabricated hollow closed connecting component is adjusted, so that the upper prefabricated concrete column is adjusted to a preset position relative to the prefabricated hollow closed connecting component, and after the adjustment is finished, pouring concrete is poured into pouring cavities formed by the upper prefabricated concrete column, the prefabricated hollow closed connecting component and the supporting component through pouring channels, so that the three components are connected and fixed; the second steel bars in the upper precast concrete column can be inserted into the precast hollow closed connecting member in a factory, the first steel plate hoops in the precast hollow closed connecting member are welded with the second steel plate hoops pre-buried at the lower end of the upper precast concrete column, so that the upper precast concrete column and the precast hollow closed connecting member form an integral precast member, the integral precast member is conveyed to a construction site, the position of the precast hollow closed connecting member relative to each other is regulated in a hoisting mode, the integral precast member is sleeved on the outer sides of the first steel bars, the prefabricated hollow closed connecting member is finally regulated to a preset position, and after regulation is completed, concrete is poured into pouring cavities formed by the upper precast concrete column, the precast hollow closed connecting member and the supporting member through pouring channels, so that the three are connected and fixed. Whether the former or the latter, the installation of the whole precast concrete column node connection structure is simpler, quicker and firmer. The prefabricated hollow closed connecting component can be directly manufactured in a processing field, is mass-produced, has low cost, can be used as a standard fitting, is more convenient to obtain, is simple to manufacture, has lower cost compared with a metal sleeve, and does not need subsequent fireproof, antirust and anticorrosion treatment on the surface.
[ description of the drawings ]
FIG. 1 is a perspective view of a hollow preform closure connecting member of the present utility model;
FIG. 2 is a cross-sectional view of a hollow preformed closure connecting member of the present utility model;
FIG. 3 is one of the cross-sectional views of the precast concrete column node connection structure of the present utility model without casting concrete in the casting cavity;
FIG. 4 is a second cross-sectional view of the precast concrete column node connection structure of the present utility model when no concrete is poured into the pouring cavity;
FIG. 5 is a view showing one of the states of the first and second reinforcing bars in the node connecting structure of the precast concrete column according to the present utility model;
FIG. 6 is a second state diagram of the first and second reinforcement bars in the precast concrete column node connection structure of the present utility model;
FIG. 7 is a cross-sectional view of a prior art precast concrete column node connection structure;
FIG. 8 is one of the perspective views of a prior art precast concrete column node connection structure;
FIG. 9 is a second perspective view of a prior art precast concrete column node connection structure;
FIG. 10 is a third perspective view of a prior art precast concrete column node connection structure;
[ detailed description ] of the utility model
The utility model is further described below with reference to the accompanying drawings:
as shown in fig. 1 to 6, a prefabricated concrete column joint connection structure comprises a support member 2 formed by concrete pouring, a plurality of first reinforcing steel bars 3 protruding upwards are arranged on a lower prefabricated concrete column 21 or a lower cast-in-place concrete column 22 connected with the support member 2, the support member 2 is connected with a prefabricated hollow closed connection member 1, the prefabricated hollow closed connection member 1 comprises a first steel plate hoop 11, a concrete layer 12 or a mortar layer 13 fixed with the first steel plate hoop 11 is poured on the outer side of the first steel plate hoop 11, the prefabricated hollow closed connection member 1 is sleeved on the outer side of the plurality of first reinforcing steel bars 3, an upper prefabricated concrete column 4 is further connected onto the prefabricated hollow closed connection member 1, a plurality of second reinforcing steel bars 5 protruding out of the lower end of the upper prefabricated concrete column 4 and extending into the prefabricated hollow closed connection member 1 are buried in the prefabricated hollow closed connection member 4, a cavity 100 for concrete pouring is formed between the upper prefabricated concrete column 4, the hollow closed connection member 1 and the support member 2, the prefabricated hollow closed connection member is provided with a plurality of steel plates 12 or a mortar layer 13 which are arranged in a surrounding mode, the prefabricated steel plates 111 are arranged on the inner side of the prefabricated steel plate hoop 100, the prefabricated steel plates are arranged on the hollow closed connection member 1, and the hollow closed connection member is formed by the hollow steel plates 111, and the prefabricated steel plates are formed by the flanges 111, and the concrete layer 111 are formed by punching the concrete layer 111, and the concrete layer is formed by the concrete layer 111 is formed by the concrete layer and the concrete layer 111, and the concrete layer is formed by the prefabricated steel plate layer and the concrete layer 12.
At the time of installation, installation scheme 1: firstly, the prefabricated hollow closed connecting component 1 is lifted, then the prefabricated hollow closed connecting component 1 is sleeved on the outer sides of the first reinforcing steel bars 3, then the upper prefabricated concrete column 4 is lifted, a plurality of second reinforcing steel bars 5 in the upper prefabricated concrete column 4 are inserted into the prefabricated hollow closed connecting component 1, then the position of the upper prefabricated concrete column 4 relative to the prefabricated hollow closed connecting component 1 is adjusted, so that the upper prefabricated concrete column 4 is adjusted to a preset position relative to the prefabricated closed connecting component 1, after adjustment, concrete is poured into pouring cavities 100 formed by the upper prefabricated concrete column 4, the prefabricated hollow closed connecting component 1 and the supporting component 2, so that the three components are fixedly connected, and only the upper prefabricated concrete column 4 and the prefabricated hollow closed connecting component 1 are needed to be aligned during installation, the installation alignment is more convenient, and then concrete is poured into the pouring cavities 100, so that the installation of the whole prefabricated concrete column node connecting structure is simpler, faster and more firm. The prefabricated hollow closed connecting component 1 can be directly manufactured in a processing field, is mass-produced, has low cost, can be used as a standard fitting, is more convenient to obtain, is simple to manufacture, has lower cost compared with a metal sleeve, and does not need subsequent fireproof, rust-proof and corrosion-proof treatment on the surface. The flange 113 is embedded into the concrete layer 12 or the mortar layer 13 so that the steel plate 111 and the concrete layer 12 or the mortar layer 13 are tightly connected and the connection is firmer. The prefabricated hollow closure connecting element 1 is produced with the first steel plate collar 11 serving as an inner mould core and with an outer mould arranged on the outside thereof, between which outer mould and the first steel plate collar 11 a space is formed for shaping the concrete layer 12 or the mortar layer 13. The cross section area of the punching hole 112 is small, the flange 113 can prevent concrete or mortar from entering the inner side of the first steel plate hoop 11 from the punching hole 112 and restrict shrinkage of the concrete layer 12 or the mortar layer 13 in the consolidation forming process, and after consolidation, the concrete layer 12 or the mortar layer 13 is firmly connected with the first steel plate hoop 11 due to the engagement of the flange 113. In addition, a reinforcing steel plate 114 or a reinforcing rivet protruding toward the casting cavity 100 is added to the steel plate 111, thereby reinforcing the connection of the first steel plate hoop 11 with the concrete in the casting cavity 100. Of course, a plurality of stirrups 6 in the horizontal direction can be arranged, and the stirrups 6 are sleeved between the plurality of first steel bars 3 and outside the second steel bars 5, so that the overall mechanical property of the connecting node is further improved.
As shown in fig. 4, the upper precast concrete column 4 is provided with a pouring channel 41 which can be communicated with the pouring cavity 100, and when concrete is poured into the pouring cavity 100, pouring can be performed through the pouring channel 41 on the upper precast concrete column 4.
As shown in fig. 1 to 2, the prefabricated hollow closed connecting member 1 is provided with a prefabricated mounting hole 14 which can be conveniently lifted by a lifting device and can be used for a tie bar to pass through or cast concrete or a vibrating rod to pass through to vibrate concrete when concrete is poured into the pouring cavity 100, and the prefabricated mounting hole 14 is synchronously closed by the concrete when the concrete is poured into the pouring cavity 100.
As shown in fig. 1 to 2, the shape of the punched hole 112 is rectangular, square, circular or elliptical.
As shown in fig. 1 to 2, the cross-sectional shape of the prefabricated hollow closure connecting element 1 is rectangular, square, circular, oval, U-shaped or L-shaped. The first steel plate hoop 11 is convenient to process, and can be formed by processing one steel plate 111 or welding a plurality of steel plates 111.
As shown in fig. 1 to 2, the first steel sheet hoop 11, the concrete layer 12 or the mortar layer 13 has a height of 400mm to 1500mm, and can be customized according to the protruding length of the first and second reinforcing bars 3 and 5.
As shown in fig. 1 to 2, the thickness of the first steel plate hoop 11 is 0.5mm to 10mm, and the thickness of the concrete layer 12 or the mortar layer 13 is 9.5mm to 50mm.
As shown in fig. 2 to 6, the lower end of the upper precast concrete column 4 is provided with a second steel hoop 42, the height of the second steel hoop 42 is 10mm-50mm, and the second steel hoop 42 is welded with all or part of the adjacent second steel bars 5. The second steel band 42 is welded to the second reinforcing bar 5 so that the connection therebetween is more stable and a continuous electrical path is formed.
As shown in fig. 2 to 6, the first reinforcing bars 3 adjacent to all or part of the first steel sheet hoops 11 are welded, and the first steel sheet hoops 11 are welded to the second steel sheet hoops 42. The first reinforcing bar 3 is welded to the first steel band 11 so that the two are connected more tightly and a continuous electrical path is formed. The first steel plate hoop 11 is welded to the second steel plate hoop 42, and the connection is tighter and forms a continuous electrical path. Meanwhile, in order to prevent lightning strike, a lightning rod is arranged in a modern building, and then a special metal connector or an electric path is externally arranged to be connected with the ground, so that the cost is increased. The lightning rod is led to conduct from top to bottom in sequence from the second steel bar 5, the second steel plate hoop 42, the first steel plate hoop 11 and the first steel bar 3, and conducts downwards layer by layer in sequence, and finally conducts to the ground, and the lightning rod and the first steel plate hoop form an electric path, so that the lightning rod is safer, more efficient and more economical.
As shown in fig. 2 to 6, the ends of the first and second reinforcing bars 3 and 5 are bent; or, the end parts of the first steel bar 3 and the second steel bar 5 are welded with anchor bars 7; or, the end parts of the first steel bar 3 and the second steel bar 5 are welded with anchor plates; or, the end parts of the first steel bar 3 and the second steel bar 5 are connected with bolt anchor heads. So that the first and second reinforcing bars 3 and 5 are more firmly connected to the concrete.
As shown in fig. 2 to 6, a first bonding mortar layer 81 is arranged between the prefabricated hollow closed connecting member 1 and the supporting member 2, and a second bonding mortar layer 82 is arranged between the prefabricated hollow closed connecting member 1 and the upper prefabricated concrete column 4. The first adhesive mortar layer 81 makes the connection of the prefabricated hollow closure connecting member 1 with the support member 2 more stable, and the second adhesive mortar layer 82 makes the connection of the prefabricated hollow closure connecting member 1 with the upper prefabricated concrete column 4 more stable. While preventing leakage of concrete while pouring the concrete in the pouring cavity 100.
Of course, the following installation scheme 2 may be adopted according to the production and installation requirements: the method comprises the steps of inserting a plurality of second steel bars 5 in an upper precast concrete column 4 into a precast hollow closed connecting member 1 in a factory, welding a first steel plate hoop 11 and a second steel plate hoop 42 to form an integral precast member with the upper precast concrete column 4 and the precast hollow closed connecting member 1, conveying the integral precast member to a construction site, hoisting and adjusting the relative position of the precast hollow closed connecting member 1, sleeving the integral precast member on the outer sides of the plurality of first steel bars 3, finally adjusting the integral precast member to a preset position, and pouring concrete in pouring cavities 100 formed by the upper precast concrete column 4, the precast hollow closed connecting member 1 and a supporting member 2 through pouring channels 41 after adjustment is completed, so that the three are fixedly connected. Whether the installation scheme 1 or the installation scheme 2 is adopted, the installation of the whole precast concrete column node connecting structure is simpler, quicker and firmer. In the present installation scheme 2, the first reinforcing bar 3 is not welded to the first steel sheet hoop 11.
Claims (10)
1. A precast concrete post node connection structure, its characterized in that: the concrete pouring structure comprises a support member (2) formed by concrete pouring, a plurality of first reinforced bars (3) protruding upwards are arranged on a lower precast concrete column (21) or a lower cast-in-place concrete column (22) connected with the support member (2), the support member (2) is connected with a precast hollow closed connecting member (1), the precast hollow closed connecting member (1) comprises a first steel plate hoop (11), a concrete layer (12) or a mortar layer (13) fixed with the first steel plate hoop (11) is poured outside the first steel plate hoop, the precast hollow closed connecting member (1) is sleeved outside a plurality of first reinforced bars (3), an upper precast concrete column (4) is further connected to the precast hollow closed connecting member (1), a plurality of second reinforced bars (5) protruding the lower end of the precast hollow closed connecting member and capable of extending into the precast hollow closed connecting member (1) are buried in the precast hollow closed connecting member (4), a concrete layer (12) or a mortar layer (13) is poured outside the first steel plate hoop (11), the precast hollow closed connecting member (1) is sleeved outside the first reinforced concrete column (3), the precast hollow closed connecting member (1) is connected with the precast hollow closed connecting member (2), and the precast hollow connecting member (2) can be connected with the precast concrete (2) through the precast hollow connecting member (2), the first steel plate hoop (11) is formed by encircling and welding a steel plate (111), a plurality of punching holes (112) are formed in the steel plate (111), a flanging (113) formed during punching is formed in the position, located in the punching holes (112), of the steel plate (111), the flanging (113) is embedded into a concrete layer (12) or a mortar layer (13), and protruding reinforcing steel plates (114) and/or stirrups (6) in the horizontal directions are arranged on the inner side of the steel plate (111).
2. The precast concrete column node connection structure according to claim 1, wherein: and a pouring channel (41) which can be communicated with the pouring cavity (100) is formed in the upper precast concrete column (4).
3. The precast concrete column node connection structure according to claim 1, wherein: the prefabricated hollow closed connecting component (1) is provided with prefabricated mounting holes (14) which can be conveniently lifted by lifting equipment and can be used for a tie bar to pass through or cast concrete or a vibrating rod to pass through vibrating concrete when concrete is poured into the pouring cavity (100), and the prefabricated mounting holes (14) are synchronously sealed by the concrete when the concrete is poured into the pouring cavity (100).
4. The precast concrete column node connection structure according to claim 1, wherein: the shape of the punching hole (112) is rectangular, square, round or elliptical.
5. The precast concrete column node connection structure according to claim 1, wherein: the cross section of the prefabricated hollow closed connecting component (1) is rectangular, square, round, oval, U-shaped or L-shaped.
6. The precast concrete column node connection structure according to claim 1, wherein: the height of the first steel plate hoop (11), the concrete layer (12) or the mortar layer (13) is 400-1500 mm, the thickness of the first steel plate hoop (11) is 0.5-10 mm, and the thickness of the concrete layer (12) or the mortar layer (13) is 9.5-50 mm.
7. The precast concrete column node connection structure according to claim 1, wherein: the lower extreme of precast concrete post (4) be equipped with second steel sheet hoop (42), second steel sheet hoop (42) highly be 10mm-50mm, second steel sheet hoop (42) with whole or partial adjacent second reinforcing bar (5) welded connection.
8. The precast concrete column node connection structure of claim 7, wherein: the first steel bar (3) adjacent to all or part of the first steel plate hoop (11) is welded with the first steel plate hoop (11), and the first steel plate hoop (11) is welded with the second steel plate hoop (42).
9. The precast concrete column node connection structure according to claim 1 or 7 or 8, characterized in that: the ends of the first steel bar (3) and the second steel bar (5) are bent;
or, the end parts of the first steel bar (3) and the second steel bar (5) are welded with anchor bars (7);
or, the end parts of the first steel bar (3) and the second steel bar (5) are welded with anchor plates;
or the end parts of the first steel bar (3) and the second steel bar (5) are connected with bolt anchor heads.
10. The precast concrete column node connection structure according to claim 1, wherein: a first bonding mortar layer (81) is arranged between the prefabricated hollow closed connecting component (1) and the supporting component (2), and a second bonding mortar layer (82) is arranged between the prefabricated hollow closed connecting component (1) and the upper prefabricated concrete column (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222570970.8U CN219240842U (en) | 2022-09-27 | 2022-09-27 | Precast concrete post node connection structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222570970.8U CN219240842U (en) | 2022-09-27 | 2022-09-27 | Precast concrete post node connection structure |
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| Publication Number | Publication Date |
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| CN219240842U true CN219240842U (en) | 2023-06-23 |
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| CN202222570970.8U Active CN219240842U (en) | 2022-09-27 | 2022-09-27 | Precast concrete post node connection structure |
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