CN216552442U - Prefabricated staircase and cast-in-place shear force wall connection structure - Google Patents
Prefabricated staircase and cast-in-place shear force wall connection structure Download PDFInfo
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- CN216552442U CN216552442U CN202123006540.5U CN202123006540U CN216552442U CN 216552442 U CN216552442 U CN 216552442U CN 202123006540 U CN202123006540 U CN 202123006540U CN 216552442 U CN216552442 U CN 216552442U
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Abstract
The utility model provides a prefabricated staircase and cast-in-place shear wall connecting structure which comprises a prefabricated staircase, a cast-in-place shear wall and angle steel, wherein the prefabricated staircase comprises two end parts and a step plate. The cast-in-place shear wall comprises a wall body and a beam. The end part of the prefabricated staircase is provided with a pre-embedded rib and extends out, and the end part is connected with the beam through the pre-embedded rib. The ladder board is provided with embedded ribs and extends out, and the ladder board and the wall body are arranged at intervals. The wall body is provided with a pre-buried anchor. The angle steel is arranged at the bottom of the ladder board, one end of the angle steel is fixedly connected with the embedded anchor, and the other end of the angle steel is used for bearing the bottom of the ladder board. And a groove is poured after the groove surrounded by the wall body, the angle steel and the step plate is formed. The ladder plate is connected with the wall body through the embedded ribs and the concrete poured in the rear pouring groove. The prefabricated staircase is fixedly connected with the cast-in-place shear wall in a cast-in-place pouring mode by arranging the embedded ribs, the embedded anchors and the post-pouring grooves, the integrity of the structure is enhanced, and the connection is reliable.
Description
Technical Field
The utility model relates to a connecting structure of a prefabricated staircase and a cast-in-place shear wall.
Background
In recent years, the development of fabricated buildings has been continued under the push of national and local policies, in which fabricated integral shear wall structures are widely used in high-rise residences.
Because the prefabricated vertical stressed components such as shear walls, columns and the like have certain difficulties in design, manufacture and construction, the selection sequence of the common prefabricated stressed components is that horizontal components such as prefabricated composite slabs, prefabricated stairs, prefabricated cantilever slabs, prefabricated composite beams and the like are preferentially adopted on the premise of meeting the requirements of assembly rates of various local policies. In the high-rise plate type residence, the stairwell is usually positioned at the north side, the outer wall of the shear wall adjacent to the prefabricated staircase is a straight wall, and if reliable measures and prefabricated step boards are not adopted, the stability problem can exist.
SUMMERY OF THE UTILITY MODEL
The utility model provides a prefabricated staircase and cast-in-place shear wall connecting structure for solving the technical problems, which comprises a prefabricated staircase, a cast-in-place shear wall and angle steel, wherein the prefabricated staircase comprises end parts at the upper end and the lower end and a step plate in the middle. The cast-in-place shear wall comprises a wall body and a beam extending out.
Specifically, the end of the prefabricated staircase is provided with a pre-embedded rib and extends out, and the end extends into and is connected with the beam through the pre-embedded rib. The ladder board is also provided with embedded ribs and extends out, and the ladder board and the wall body are arranged at intervals. And a pre-buried anchor is arranged on one side of the wall body, which is connected with the ladder boards. The angle steel is arranged at the bottom of the ladder board, one end of the angle steel is fixedly connected with the pre-buried anchor, and the other end of the angle steel spans the gap and bears the bottom of the ladder board. And a groove is poured after the groove surrounded by the wall body, the angle steel and the step plate is formed. The ladder plate is connected with the wall body through the embedded ribs and the concrete poured in the rear pouring groove.
The utility model arranges the pre-buried rib, the pre-buried anchor and the post-pouring groove. Through the mode of cast in situ, with prefabricated staircase and cast-in-place shear force wall fixed connection, this connected mode can avoid the shear force wall unstability, makes the halfpace provide the side direction for the shear force wall and supports, strengthens the wholeness of structure, is a reliable connected mode.
Furthermore, the embedded ribs are U-shaped and have better bending resistance.
Further, the pre-buried anchor is higher than the bottom of the ladder board. The pre-buried muscle of ladder board extends and contacts pre-buried anchor. The pre-buried muscle of stair board is through welded fastening connection pre-buried anchor has improved the connection degree of stair and wall.
Furthermore, the pre-buried muscle of stair board with pre-buried anchor passes through the double-sided welding, and welding length is more than or equal to 5d, and wherein d is the pre-buried muscle diameter of stair board.
Furthermore, the width of the rear pouring groove is 90mm-110 mm. The extending length of the embedded rib extending out of the ladder board is 90-110 mm, the length of the part bent downwards is 15d, and d is the diameter of the embedded rib of the ladder board.
Furthermore, in order to further improve the connection strength, the wall body is also provided with embedded ribs and extends into the rear pouring groove.
Furthermore, the embedded ribs of the wall body are connected with the embedded ribs of the ladder board through single-side welding, the welding length is larger than or equal to 10d, and d is the diameter of the embedded ribs of the ladder board. By welding, the structural integrity is further enhanced.
Furthermore, in order to improve the connection strength of the pre-buried anchor and the wall, the pre-buried anchor comprises a plate and a steel bar. The plate is arranged on the wall surface of the wall body. The reinforcing steel bars are arranged in the wall body and fixedly connected with the plate through welding.
Further, the wall of wall body is equipped with the embedded groove, the plate sets up in the embedded groove, just the surface of plate with the wall parallel and level of wall body, the wall body has the power of upwards supporting to exposed plate promptly.
Furthermore, the beam is a superposed beam or a cast-in-place beam. The beam is provided with a bearing table corresponding to the end part, the width of the bearing table is 8mm-12mm, and a certain supporting force can be provided for the end part of the prefabricated staircase.
As is apparent from the above description of the present invention, the present invention has the following advantageous effects:
1. the embedded steel bar, the embedded anchor and the rear pouring groove are arranged. Through the mode of cast in situ, with prefabricated staircase and cast-in-place shear force wall fixed connection, this connected mode can avoid the shear force wall unstability, makes the halfpace provide the side direction for the shear force wall and supports, strengthens the wholeness of structure, is a reliable connected mode.
2. The pre-embedded ribs of the ladder boards are welded with the pre-embedded anchors of the wall body, so that the integrity and the strength of the connecting structure are improved.
3. Through set up the embedded muscle at the wall body, improve the joint strength of wall body and step.
4. Through the pre-buried muscle welded connection with the embedded muscle welded connection of the embedded muscle of wall body and step, improve connection structure's wholeness and intensity.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model.
Wherein:
FIG. 1 is a schematic view of an end to beam connection; (side)
FIG. 2 is a schematic view of a connection structure of a ladder board and a wall; (overlooking)
FIG. 3 is a first schematic view of a connection structure of a ladder board and a wall; (side)
FIG. 4 is a second schematic view of the connection structure of the step plate and the wall; (side)
The designations in fig. 1 to 4 are respectively: the prefabricated staircase comprises a prefabricated staircase 1, an end part 11, a stair board 12, a rear pouring groove 13, a cast-in-place shear wall 2, a wall body 21, a pre-buried anchor 212, a beam 22, a bearing platform 221, angle steel 3 and pre-buried ribs 4.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention clearer and clearer, 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 utility model and are not intended to limit the utility model.
Referring to fig. 1 to 4, a connection structure of a prefabricated staircase 1 and a cast-in-place shear wall 2 includes the prefabricated staircase 1, the cast-in-place shear wall 2 and angle steel 3, wherein the prefabricated staircase 1 includes end portions 11 at upper and lower ends and a step plate 12 at a middle portion. The cast-in-situ shear wall 2 comprises a wall body 21 and an extended beam 22, wherein the beam 22 is the cast-in-situ beam 22.
Specifically, referring to fig. 1, the end portion 11 of the prefabricated staircase 1 is provided with the embedded ribs 4 and extends out, and when the beam 22 is cast in place, the embedded ribs 4 of the end portion 11 extend into and are connected with the beam 22. In order to improve the connection strength and the bending resistance, the embedded ribs 4 are U-shaped.
In other embodiments, the beam 22 is provided with a receiving platform 221 corresponding to the end 11, and the receiving platform 221 is 8mm-12mm wide and can provide a certain supporting force for the end 11 of the prefabricated staircase 1.
The ladder board 12 is also provided with embedded ribs 4 and extends out, and is also U-shaped, the extending length is 100mm, and the length of the downward bent part is 15 d. d is the diameter of the embedded rib of the ladder board.
The step boards 12 and the wall 21 are arranged at intervals.
The wall 21 is provided with pre-embedded anchors 212 at one side connected to the ladder boards 12. In this embodiment, in order to improve the connection strength between the pre-buried anchor 212 and the wall 21, the pre-buried anchor 212 includes a plate and a steel bar. The plate sets up wall 21's wall, it is preferred, wall 21's wall is equipped with the embedded groove, the plate sets up in the embedded groove, just the surface of plate with wall 21's wall parallel and level, wall 21 has the power of upwards supporting to exposed plate promptly. The reinforcing steel bars are arranged in the wall body 21 and fixedly connected with the plates through welding.
The angle steel 3 is arranged at the bottom of the ladder board 12, one end of the angle steel is fixedly connected with the embedded anchor 212, and the other end of the angle steel spans the gap and bears the bottom of the ladder board 12. And a groove formed by the wall 21, the angle steel 3 and the step plate 12 is a rear pouring groove 13. The step boards 12 are connected with the wall 21 through the embedded ribs 4 and the concrete poured in the rear pouring groove 13.
Referring to fig. 3, in this embodiment, the pre-embedded anchors 212 are higher than the bottom of the ladder board 12. The pre-embedded ribs 4 of the ladder board 12 extend and contact the pre-embedded anchors 212. The embedded ribs 4 of the stair boards 12 are fixedly connected with the embedded anchors 212 through double-sided welding, the welding length is more than or equal to 5d, and the connecting degree of the stair and the wall is improved. In other embodiments, referring to fig. 4, in order to further improve the connection strength, the wall body 21 is also provided with embedded ribs 4 and extends into the rear casting groove 13. Furthermore, the embedded ribs 4 of the wall 21 are connected with the embedded ribs 4 of the ladder board 12 through single-side welding, the welding length is larger than or equal to 10d, and the structural integrity is further enhanced through welding.
The utility model arranges the embedded bar 4, the embedded anchor 212 and the post-pouring groove 13. Through the mode of cast in situ, with prefabricated staircase 1 and cast-in-place shear force wall 2 fixed connection, this connected mode can avoid the shear force wall unstability, makes halfpace 12 provide the side direction for the shear force wall and supports, strengthens the wholeness of structure, is a reliable connected mode.
The utility model has been described above with reference to the accompanying drawings, it is obvious that the utility model is not limited to the specific implementation in the above-described manner, and it is within the scope of the utility model to apply the inventive concept and solution to other applications without substantial modification.
Claims (10)
1. A connection structure of a prefabricated staircase and a cast-in-place shear wall is characterized by comprising the prefabricated staircase, the cast-in-place shear wall and angle steel; the prefabricated staircase comprises end parts at the upper end and the lower end and a middle step plate; the cast-in-place shear wall comprises a wall body and a beam extending out; the end part of the prefabricated staircase is provided with a pre-embedded rib and extends out, and the end part extends into and is connected with the beam through the pre-embedded rib; the ladder boards are also provided with embedded ribs and extend out, and the ladder boards and the wall body are arranged at intervals; a pre-buried anchor is arranged on one side of the wall body, which is connected with the ladder boards; the angle steel is arranged at the bottom of the ladder plate, one end of the angle steel is fixedly connected with the embedded anchor, and the other end of the angle steel spans the interval and bears the bottom of the ladder plate; a groove formed by the wall body, the angle steel and the step plate in a surrounding mode is a post-pouring groove; the ladder plate is connected with the wall body through the embedded ribs and the concrete poured in the rear pouring groove.
2. The prefabricated staircase and cast-in-place shear wall connection structure as claimed in claim 1, wherein the embedded ribs are U-shaped.
3. The connecting structure of the prefabricated staircase and the cast-in-place shear wall as claimed in claim 2, wherein the pre-embedded anchors are higher than the bottom of the stair tread; the embedded bar of the ladder plate extends and contacts the embedded anchor; the pre-buried muscle of step passes through welded fastening and connects pre-buried anchor.
4. The connecting structure of the prefabricated staircase and the cast-in-place shear wall as claimed in claim 3, wherein the pre-embedded ribs of the stair plates and the pre-embedded anchors are welded by double-sided welding, the welding length is greater than or equal to 5d, and d is the diameter of the pre-embedded ribs of the stair plates.
5. The prefabricated staircase and cast-in-place shear wall connection structure as claimed in claim 2, wherein the rear casting groove has a width of 90mm-110 mm; the extension length of the embedded rib of the ladder board is 90-110 mm, the length of the part bent downwards is 15d, and d is the diameter of the embedded rib of the ladder board.
6. The precast stair and cast-in-place shear wall connection structure as claimed in claim 1, wherein the wall body is also provided with embedded ribs and extends into the rear pouring groove.
7. The structure of claim 6, wherein the embedded ribs of the wall and the embedded ribs of the stair plates are connected by single-sided welding, the welding length is greater than or equal to 10d, and d is the diameter of the embedded ribs of the stair plates.
8. The connecting structure of the prefabricated staircase and the cast-in-place shear wall as claimed in claim 1, wherein the pre-buried anchors comprise plates and reinforcing steel bars; the plate is arranged on the wall surface of the wall body; the reinforcing steel bars are arranged in the wall body and fixedly connected with the plate through welding.
9. The precast stair and cast-in-place shear wall connection structure of claim 8, wherein the wall surface of the wall body is provided with an embedded groove, the plate is arranged in the embedded groove, and the outer surface of the plate is flush with the wall surface of the wall body.
10. The connection structure of the prefabricated staircase and the cast-in-place shear wall as claimed in claim 1, wherein the beam is a laminated beam or a cast-in-place beam; the beam is provided with a bearing table corresponding to the end part, and the width of the bearing table is 8mm-12 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123006540.5U CN216552442U (en) | 2021-12-01 | 2021-12-01 | Prefabricated staircase and cast-in-place shear force wall connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123006540.5U CN216552442U (en) | 2021-12-01 | 2021-12-01 | Prefabricated staircase and cast-in-place shear force wall connection structure |
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| Publication Number | Publication Date |
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| CN216552442U true CN216552442U (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123006540.5U Active CN216552442U (en) | 2021-12-01 | 2021-12-01 | Prefabricated staircase and cast-in-place shear force wall connection structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941382A (en) * | 2022-05-31 | 2022-08-26 | 中建八局总承包建设有限公司 | Concrete structure and steel stair waterproof node and construction method thereof |
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2021
- 2021-12-01 CN CN202123006540.5U patent/CN216552442U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941382A (en) * | 2022-05-31 | 2022-08-26 | 中建八局总承包建设有限公司 | Concrete structure and steel stair waterproof node and construction method thereof |
| CN114941382B (en) * | 2022-05-31 | 2023-12-08 | 中建八局总承包建设有限公司 | Waterproof node for concrete structure and steel stair and construction method thereof |
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