CN212129686U - A connection structure for prefabricated column of assembled concrete - Google Patents
A connection structure for prefabricated column of assembled concrete Download PDFInfo
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- CN212129686U CN212129686U CN202020645325.6U CN202020645325U CN212129686U CN 212129686 U CN212129686 U CN 212129686U CN 202020645325 U CN202020645325 U CN 202020645325U CN 212129686 U CN212129686 U CN 212129686U
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Abstract
A connecting structure for an assembled concrete precast column comprises a tenon arranged on the bottom surface of an upper precast column, an upper pre-buried steel plate pre-buried on the peripheral side surface of the bottom of the upper precast column, a groove formed on the top surface of a lower precast column, a lower pre-buried steel plate pre-buried on the peripheral side surface of the top of the lower precast column and a connecting steel plate; the shape of the groove is matched with that of the tenon, when the bottom surface of the upper precast column is arranged on the top surface of the lower precast column, the tenon is inserted into the groove, and the bottom edge of the upper embedded steel plate is butted with the top edge of the lower embedded steel plate; in the upper prefabricated column and the lower prefabricated column, the upper embedded steel plate on the same side surface is flush with the outer side surface of the lower embedded steel plate; the connecting steel plate is arranged on the outer side surfaces of the upper embedded steel plate and the lower embedded steel plate, and the upper embedded steel plate and the lower embedded steel plate are connected together. This connection structure can be as a whole with the quick connection of two sections precast concrete posts, and can guarantee that the junction of two precast concrete posts has sufficient joint strength.
Description
Technical Field
The utility model relates to an assembly type structure field refers in particular to a connection structure for prefabricated post of assembled concrete.
Background
The assembly type building has the advantages of high construction speed, guaranteed quality, high economic benefit, environmental friendliness, labor saving and the like, and is widely popularized in China in recent years. The fabricated concrete structure refers to a concrete structure fabricated by prefabricated concrete members in a reliable connection manner. Whether the connection between the members is reliable is one of the important factors affecting the performance of the fabricated concrete structure.
The main connection modes of the fabricated concrete structure include a wet connection mode and a dry connection mode.
At present, wet connection is the most widely applied in China, and the method of the connection mode mainly comprises the steps that steel bars extend out of precast concrete components at the connection parts, and then all the precast concrete components are connected into a whole in a post-cast concrete or sleeve grouting mode.
The main problems of the connection mode are that the field wet operation amount is large, the construction of the next procedure can be started only when the concrete reaches a certain strength, the construction speed is slow, and the advantages of the assembly type building cannot be fully embodied.
Compared with wet connection, dry connection can effectively reduce the wet operation amount on site and has higher construction speed. The dry type connection is to connect two precast concrete members together through a connecting structure, but there is not a better connecting structure to be used for connecting two sections of precast concrete columns together fast to prefabricated concrete column of assembled at present to guarantee that the cylinder after connecting has sufficient working strength.
Disclosure of Invention
The utility model aims to provide a: to the problem that above-mentioned exists, provide a connection structure for prefabricated post of assembled concrete, this connection structure can be as a whole with the quick connection of two sections prefabricated post of concrete, and can guarantee that the junction of two prefabricated posts of concrete has sufficient joint strength, and then guarantees that whole cylinder has sufficient working strength.
The utility model adopts the technical scheme as follows:
a connecting structure for an assembled concrete precast column comprises a tenon arranged on the bottom surface of an upper precast column, an upper pre-buried steel plate pre-buried on the peripheral side surface of the bottom of the upper precast column, a groove formed on the top surface of a lower precast column, a lower pre-buried steel plate pre-buried on the peripheral side surface of the top of the lower precast column and a connecting steel plate for connecting the upper pre-buried steel plate and the lower pre-buried steel plate; the shape of the groove is matched with that of the tenon, when the bottom surface of the upper precast column is arranged on the top surface of the lower precast column, the tenon is inserted into the groove, and the bottom edge of the upper embedded steel plate is butted with the top edge of the lower embedded steel plate; in the upper prefabricated column and the lower prefabricated column, the upper embedded steel plate on the same side surface is flush with the outer side surface of the lower embedded steel plate; the connecting steel plate is arranged on the outer side surfaces of the upper embedded steel plate and the lower embedded steel plate, and the upper embedded steel plate and the lower embedded steel plate are connected together.
Furthermore, a reinforced steel bar framework is arranged in the tenon.
Furthermore, the reinforced steel bar framework comprises a plurality of longitudinal bars and a plurality of stirrups, the upper ends of the longitudinal bars are inserted into the upper prefabricated columns, and the lower ends of the longitudinal bars are inserted into the tenons; the stirrups are arranged at intervals along the extending direction of the longitudinal bars, and all the longitudinal bars are sleeved together.
Furthermore, the cross section of the tenon is in a regular polygon shape, and the cross section of the groove is matched with that of the tenon.
Furthermore, the volume of the cavity of the groove is larger than that of the tenon, so that the distance from the side surface of the tenon to the inner wall of the groove and/or the distance from the bottom surface of the tenon to the bottom surface of the groove is 10-20 mm.
Furthermore, an upper anchoring steel bar is arranged on the inner side of the upper embedded steel plate, one end of the upper anchoring steel bar is connected with the inner side surface of the upper embedded steel plate, and the other end of the upper anchoring steel bar is inserted into the bottom of the upper prefabricated column;
and lower anchoring steel bars are arranged on the inner sides of the lower embedded steel plates, one ends of the lower anchoring steel bars are connected with the inner side surfaces of the lower embedded steel plates, and the other ends of the lower anchoring steel bars are inserted into the tops of the lower prefabricated columns.
Furthermore, the one end that goes up anchor reinforcing bar and anchor reinforcing bar down and insert prefabricated capital portion and prefabricated capital portion down is provided with spacing portion, spacing portion is used for restricting upper anchor reinforcing bar and anchor reinforcing bar down and is pulled out prefabricated capital portion and prefabricated capital portion down.
Furthermore, one end of the upper anchoring steel bar inserted into the bottom of the upper prefabricated column is bent upwards to form a limiting part; and one end of the lower anchoring steel bar inserted into the top of the lower prefabricated column is bent downwards to form a limiting part.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
the utility model discloses a connection structure, the cooperation through tenon and recess can be quick make the quick butt joint of two precast concrete posts together, the location is convenient, pre-buried steel sheet and lower pre-buried steel sheet relegate the joint strength that the joint can guarantee the joint in the setting of the joint of two precast concrete posts, also the convenience will go up pre-buried steel sheet through the welded mode, lower pre-buried steel sheet links together with the joint steel sheet, and then link together two precast concrete posts, make the post after the connection have good working strength.
Drawings
FIG. 1 is a block diagram of an upper precast column and a lower precast column when they are connected;
FIG. 2 is a block diagram of the upper precast column and the lower precast column in a separated state;
FIG. 3 is a block diagram of the junction of an upper precast column and a lower precast column;
FIG. 4 is a view showing an external appearance of an upper precast column and a lower precast column when they are coupled;
FIG. 5 is a view showing the bottom structure of the upper precast column;
FIG. 6 is a top view of the lower precast column.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model discloses a connecting structure for an assembled concrete precast column, which comprises a tenon 2 arranged on the bottom surface of an upper precast column 1, an upper pre-buried steel plate 9 pre-buried on the peripheral side surface of the bottom of the upper precast column 1, a groove 3 arranged on the top surface of a lower precast column 4, a lower pre-buried steel plate 5 pre-buried on the peripheral side surface of the top of the lower precast column 4 and a connecting steel plate 11 for connecting the upper pre-buried steel plate 9 and the lower pre-buried steel plate 5; the shape of the groove 3 is matched with that of the tenon 2, when the bottom surface of the upper precast column 1 is arranged on the top surface of the lower precast column 4, the tenon 2 is inserted into the groove 3, and the bottom edge of the upper embedded steel plate 9 is mutually butted with the top edge of the lower embedded steel plate 5; in the upper prefabricated column 1 and the lower prefabricated column 4, the upper embedded steel plate 9 on the same side surface is flush with the outer side surface of the lower embedded steel plate 5; the connecting steel plate 11 is arranged on the outer side surfaces of the upper embedded steel plate 9 and the lower embedded steel plate 5, and connects the upper embedded steel plate 9 and the lower embedded steel plate 5 together.
Due to the structure, the matching of the groove 3 and the tenon 2 can enable the upper prefabricated column 1 to be rapidly butted with the lower prefabricated column 4, the joint of the upper prefabricated column 1 and the lower prefabricated column 4 is provided with the upper embedded steel plate 9 and the lower embedded steel plate 5 to ensure the strength of the joint, and meanwhile, the upper embedded steel plate 9 and the lower embedded steel plate 5 are also conveniently and rapidly welded on the upper embedded steel plate 9 and the lower embedded steel plate 5 due to the existence of the upper embedded steel plate 9 and the lower embedded steel plate 5.
And a reinforced steel bar framework is arranged in the tenon 2 to improve the bearing capacity of the tenon 2.
As shown in fig. 2, the reinforcing steel bar framework comprises a plurality of longitudinal bars 7 and a plurality of stirrups 8, wherein the upper ends of the longitudinal bars 7 are inserted into the upper prefabricated column 1, and the lower ends of the longitudinal bars are inserted into the tenons 2; the stirrups 8 are arranged at intervals along the extending direction of the longitudinal bars 7, and all the longitudinal bars 7 are sleeved together.
The length of the longitudinal ribs 7 inserted into the upper prefabricated column 1 meets the anchoring requirements of the longitudinal ribs 7, so that the anchoring strength of the longitudinal ribs 7 in the upper prefabricated column 1 is improved, and the tenons 2 can be stably arranged on the bottom surface of the upper prefabricated column 1; the number of the stirrups 8 in the tenon is set according to the requirement of the shear-resistant bearing capacity of the tenon.
The cross section of the tenon 2 is in a regular polygon shape, and the cross section of the groove 3 is matched with that of the tenon 2, so that the tenon 2 can be prevented from rotating after being inserted into the groove 3, and the connection stability of the two prefabricated columns is ensured; in this embodiment, as shown in fig. 5 and 6, the upper prefabricated column 1 and the lower prefabricated column 4 are both quadrangular prisms, so that the upper prefabricated column 1 and the lower prefabricated column 4 are respectively provided with 4 upper embedded steel plates 9 and 4 lower embedded steel plates 5, the cross-sectional shape of the tenon 2 is square, and the cross-sectional shape of the groove 3 is also square.
The volume of the cavity of the groove 3 is larger than that of the tenon 2, so that the distance from the side surface of the tenon 2 to the inner wall of the groove 3 and/or the distance from the bottom surface of the tenon 2 to the bottom surface of the groove 3 is 10-20 mm. So as to pour mortar into the groove 3 and ensure the connection of the groove 3 and the tenon 2.
An upper anchoring steel bar 10 is arranged on the inner side of the upper embedded steel plate 9, one end of the upper anchoring steel bar 10 is connected with the inner side surface of the upper embedded steel plate 9, and the other end of the upper anchoring steel bar is inserted into the bottom of the upper prefabricated column 1;
the inboard of lower pre-buried steel sheet 5 is provided with down anchor bar 6, 6 one end of anchor bar link to each other with 5 medial surfaces of lower pre-buried steel sheet down, and the other end inserts prefabricated post 4 tops down.
One end of the upper anchoring steel bar 10 and one end of the lower anchoring steel bar 6, which are inserted into the bottom of the upper prefabricated column 1 and the top of the lower prefabricated column 4, are provided with limiting parts, and the limiting parts are used for limiting the upper anchoring steel bar 10 and the lower anchoring steel bar 6 to be pulled out of the bottom of the upper prefabricated column 1 and the top of the lower prefabricated column 4.
As shown in fig. 1-3, one end of the upper anchoring bar 10 inserted into the bottom of the upper prefabricated column 1 is bent upwards to form a limiting part; and one end of the lower anchoring steel bar 6 inserted into the top of the lower prefabricated column 4 is bent downwards to form a limiting part.
The utility model discloses an on-the-spot work progress as follows:
when the upper prefabricated column 1 is produced, the tenon 2 extends outwards from the bottom surface of the lower end of the upper prefabricated column 1, and the size of the tenon 2 is determined according to the size of the shearing force borne in the column span. In addition, in order to improve the bearing capacity of the tenon 2, the longitudinal rib 7 and the stirrup 8 need to be arranged in the tenon 2, and the longitudinal rib 7 in the tenon 2 extends into the upper prefabricated column 1 and has enough anchoring length. The 4 side faces of the lower section of the upper prefabricated column 1 are all embedded with upper embedded steel plates 9, and the upper embedded steel plates 9 are anchored in concrete through upper anchoring steel bars 10. In order to ensure that the surface of the two prefabricated columns is smooth after the two prefabricated columns are connected on site, the upper embedded steel plate 9 groove 3 is reserved at the position where the upper embedded steel plate 9 is arranged on the upper prefabricated column 1, the depth of the upper embedded steel plate 9 groove 3 is 2cm, and the upper embedded steel plate 9 is arranged in the upper embedded steel plate 9 groove 3.
When the lower prefabricated column 4 is produced, a cuboid groove 3 is reserved at the top of the upper prefabricated column 1 according to the size of the tenon 2, so that the tenon 2 can be inserted into the groove. In order to ensure smooth field installation, the size of the cavity is slightly larger than that of the tenon 2, and the distance from the side surface of the tenon 2 to the inner wall of the groove 3 and/or the distance from the bottom surface of the tenon 2 to the bottom surface of the groove 3 is 10-20 mm. The top of the lower prefabricated column 4 is also provided with a groove 3 of an embedded steel plate 5 and a lower embedded steel plate 5 at the connecting part, and the positions of the groove 3 of the lower embedded steel plate 5 and the lower embedded steel plate 5 correspond to the position of the upper prefabricated column 1.
When the prefabricated column is installed on site, the lower prefabricated column 4 is installed. And then, pouring mortar into the groove 3 at the top of the lower prefabricated column 4, wherein the volume of the poured mortar is larger than the difference between the volumes of the tenon 2 and the groove 3. And after the mortar is poured, hoisting the lower prefabricated column 4 to enable the tenon 2 of the upper prefabricated column 1 to be inserted into the groove 3, observing that the mortar overflows from the joint position of the upper prefabricated column 1 and the lower prefabricated column 4, and ensuring that the mortar fills the gap between the tenon 2 and the groove 3. And after the tenon 2 is inserted into the groove 3, the perpendicularity and elevation of the upper prefabricated column 1 are checked.
And welding the connecting steel plate 11 to the upper and lower embedded steel plates 5, wherein the sizes of the upper and lower embedded steel plates 5 and the connecting steel plate 11 are determined according to the size of the bending moment borne by the node and the basic construction requirement. In order to ensure the reliability of connection, the welding adopts a 4-surface surrounding welding mode.
After welding, the grooves 3 of the upper embedded steel plate 9 and the grooves 3 of the lower embedded steel plate 5 are filled with cement mortar, so that the surface of the column body is smooth, and the appearance quality of the column is improved.
The utility model discloses the connection form is simple, and construction speed is fast. The precision requirement on the production and hoisting of the component is low. And moreover, no overhanging reinforcing steel bars are arranged, and the requirement on the template is lower.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides a connection structure for prefabricated column of assembled concrete which characterized in that: the steel plate connecting structure comprises a tenon (2) arranged on the bottom surface of an upper prefabricated column (1), an upper embedded steel plate (9) embedded on the peripheral side surface of the bottom of the upper prefabricated column (1), a groove (3) formed on the top surface of a lower prefabricated column (4), a lower embedded steel plate (5) embedded on the peripheral side surface of the top of the lower prefabricated column (4) and a connecting steel plate (11) used for connecting the upper embedded steel plate (9) and the lower embedded steel plate (5); the shape of the groove (3) is matched with that of the tenon (2), when the bottom surface of the upper prefabricated column (1) is arranged on the top surface of the lower prefabricated column (4), the tenon (2) is inserted into the groove (3), and the bottom edge of the upper embedded steel plate (9) is mutually butted with the top edge of the lower embedded steel plate (5); in the upper prefabricated column (1) and the lower prefabricated column (4), the upper embedded steel plate (9) on the same side surface is flush with the outer side surface of the lower embedded steel plate (5); and the connecting steel plate (11) is arranged on the outer side surfaces of the upper embedded steel plate (9) and the lower embedded steel plate (5), and the upper embedded steel plate (9) is connected with the lower embedded steel plate (5).
2. The connecting structure for an assembled concrete precast column according to claim 1, characterized in that: and a reinforcing steel bar framework is arranged in the tenon (2).
3. The connecting structure for prefabricated concrete columns according to claim 2, wherein: the reinforced steel bar framework comprises a plurality of longitudinal bars (7) and a plurality of stirrups (8), the upper ends of the longitudinal bars (7) are inserted into the upper prefabricated column (1), and the lower ends of the longitudinal bars are inserted into the tenons (2); the stirrups (8) are arranged at intervals along the extending direction of the longitudinal bars (7), and all the longitudinal bars (7) are sleeved together.
4. The connecting structure for an assembled concrete precast column according to claim 1, characterized in that: the cross section of the tenon (2) is in a regular polygon shape, and the cross section of the groove (3) is matched with that of the tenon (2).
5. The connecting structure for an assembled concrete precast column according to claim 1, characterized in that: the volume of the cavity of the groove (3) is larger than that of the tenon (2), so that the distance from the side surface of the tenon (2) to the inner wall of the groove (3) and/or the distance from the bottom surface of the tenon (2) to the bottom surface of the groove (3) is 10-20 mm.
6. The connecting structure for an assembled concrete precast column according to claim 1, characterized in that: an upper anchoring steel bar (10) is arranged on the inner side of the upper embedded steel plate (9), one end of the upper anchoring steel bar (10) is connected with the inner side surface of the upper embedded steel plate (9), and the other end of the upper anchoring steel bar is inserted into the bottom of the upper prefabricated column (1);
and lower anchoring steel bars (6) are arranged on the inner sides of the lower embedded steel plates (5), one ends of the lower anchoring steel bars (6) are connected with the inner side surfaces of the lower embedded steel plates (5), and the other ends of the lower anchoring steel bars are inserted into the tops of the lower prefabricated columns (4).
7. The connecting structure for prefabricated concrete columns according to claim 6, wherein: go up anchor reinforcing bar (10) and anchor reinforcing bar (6) down and insert prefabricated post (1) bottom and the one end at prefabricated post (4) top down and be provided with spacing portion, spacing portion is used for restricting anchor reinforcing bar (10) and anchor reinforcing bar (6) down and is pulled out prefabricated post (1) bottom and prefabricated post (4) top down.
8. The connecting structure for an assembled concrete precast column according to claim 7, wherein: one end of the upper anchoring steel bar (10) inserted into the bottom of the upper prefabricated column (1) is bent upwards to form a limiting part; and one end of the lower anchoring steel bar (6) inserted into the top of the lower prefabricated column (4) is bent downwards to form a limiting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020645325.6U CN212129686U (en) | 2020-04-24 | 2020-04-24 | A connection structure for prefabricated column of assembled concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020645325.6U CN212129686U (en) | 2020-04-24 | 2020-04-24 | A connection structure for prefabricated column of assembled concrete |
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| Publication Number | Publication Date |
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| CN212129686U true CN212129686U (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020645325.6U Active CN212129686U (en) | 2020-04-24 | 2020-04-24 | A connection structure for prefabricated column of assembled concrete |
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| CN (1) | CN212129686U (en) |
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- 2020-04-24 CN CN202020645325.6U patent/CN212129686U/en active Active
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