CN213806250U - Novel bolted connection structure of assembled prefabricated stair - Google Patents
Novel bolted connection structure of assembled prefabricated stair Download PDFInfo
- Publication number
- CN213806250U CN213806250U CN202022372236.1U CN202022372236U CN213806250U CN 213806250 U CN213806250 U CN 213806250U CN 202022372236 U CN202022372236 U CN 202022372236U CN 213806250 U CN213806250 U CN 213806250U
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- Prior art keywords
- prefabricated
- connection structure
- prefabricated staircase
- novel
- bolt
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- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 239000011083 cement mortar Substances 0.000 claims description 8
- 239000004793 Polystyrene Substances 0.000 claims description 5
- 229920002223 polystyrene Polymers 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 238000004873 anchoring Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 230000006872 improvement Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229920006389 polyphenyl polymer Polymers 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model discloses a novel bolted connection structure of prefabricated stair of assembled, including prefabricated stair, landing slab, bolt and cast-in-place ladder beam, the lower extreme of landing slab is provided with cast-in-place ladder beam, the preformed hole has been seted up to the tip of prefabricated stair, the bolt is worn to establish in the preformed hole with prefabricated stair are fixed on the cast-in-place ladder beam. And (5) problems are solved. The technical effects achieved are as follows: the utility model discloses a connected mode, under the prerequisite of having guaranteed security and reliability, reduces the pre-buried degree of difficulty, guarantees pre-buried precision, has improved prefabricated stair's installation effectiveness, has improved the accuracy that main part bolt is pre-buried and prefabricated stair bolt hole was reserved.
Description
Technical Field
The utility model relates to a construction technical field, concretely relates to novel bolted connection structure of prefabricated stair of assembled.
Background
Compared with cast-in-place stairs, the prefabricated stairs have the advantages that field wet operation can be obviously reduced, quality and appearance are easy to guarantee, the installation process is simple, the prefabricated stairs become a great trend in building structures along with high-speed development of assembly buildings in China, research on connecting nodes of the prefabricated stairs is relatively few, most of the connecting nodes still adopt embedded bolts in a main body structure, holes are reserved at the tops of the prefabricated stairs, and the holes are filled with cementing materials after being hoisted.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a novel bolted connection structure of assembled prefabricated staircase to solve above-mentioned problem among the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
according to the utility model discloses an aspect, a novel bolted connection structure of prefabricated stair of assembled, including prefabricated stair, landing slab, bolt and cast-in-place ladder beam, the lower extreme of landing slab is provided with cast-in-place ladder beam, the preformed hole has been seted up to prefabricated stair's tip, the bolt is worn to establish in the preformed hole with prefabricated stair are fixed on the cast-in-place ladder beam.
Further, still include the cement mortar layer, the cement mortar layer sets up in prefabricated stair tip and the junction of cast-in-place terraced roof beam.
Further, the hole edge reinforcing rib is further included, and the hole edge reinforcing rib is sleeved on the outer peripheral side of the reserved hole.
And the bolt further comprises a fixing nut gasket, the fixing nut gasket is in threaded connection with the top of the bolt, and the fixing nut gasket is fastened on the hole edge reinforcing rib.
Further, still include the polyphenyl board filling layer, prefabricated stair top with be provided with between the vertical face of landing slab the polyphenyl board filling layer.
Further, a reserved seam is arranged between the bottom end of the prefabricated staircase and the vertical surface of the platform plate.
Further, still include the slab muscle, the platform board is embedded to be equipped with the slab muscle.
Further, still include reinforcing bar anchor plate, reinforcing bar anchor plate sets up the lower extreme of bolt.
Further, still include the raft, the raft setting is in the lower extreme of prefabricated stair.
Further, still include a supporting beam, a supporting beam sets up the downside of landing slab, a supporting beam's upper end still is connected with the floor.
The utility model has the advantages of as follows: through the novel bolt connecting structure of the assembly type prefabricated staircase, the same-proportion reduction experiment method and the gradual improvement method are adopted, the prefabricated staircase has higher cost, the prefabricated staircase is self-made on a construction site by the same-proportion reduction method, the installation environment is simulated, the problem can be well found and improved, and the gradual improvement method is to gradually improve because the structural form is different and the installation environment is also different, so that a connecting node with strong applicability is found; the utility model discloses a connected mode, under the prerequisite of having guaranteed security and reliability, reduces the pre-buried degree of difficulty, guarantees pre-buried precision, has improved prefabricated stair's installation effectiveness, has improved the accuracy that main part bolt is pre-buried and prefabricated stair bolt hole was reserved.
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 should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a partial structure view of a novel bolt connection structure of prefabricated staircase that some embodiments of the present invention provide.
Fig. 2 is a partial structure view of a novel bolt connection structure of prefabricated staircase that some embodiments of the present invention provide.
Fig. 3 is a partial structure view of a novel bolt connection structure of prefabricated staircase that some embodiments of the present invention provide.
Fig. 4 is a partial structure view of a novel bolt connection structure of prefabricated staircase that some embodiments of the present invention provide.
Fig. 5 is a partial structure view of a novel bolt connection structure of prefabricated staircase according to some embodiments of the present invention.
Fig. 6 is a structural diagram of a basement without a bolt connection structure for prefabricated staircases according to some embodiments of the present invention.
Fig. 7 is a structural diagram of a lower basement of the novel bolt connection structure of prefabricated staircase according to some embodiments of the present invention.
In the figure: 1. prefabricated staircase, 2, landing slab, 3, cast-in-place ladder beam, 4, cement mortar layer, 5, bolt, 6, preformed hole, 7, polyphenyl board filling layer, 8, hole edge reinforcing rib, 9, plate rib, 10, remained seam, 11, fixation nut gasket, 12, raft, 13, supporting beam, 14, floor.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1 to 7, the novel bolted connection structure of assembled prefabricated staircase in this embodiment includes prefabricated staircase 1, landing slab 2, bolt 5 and cast-in-place terraced roof beam 3, and the lower extreme of landing slab 2 is provided with cast-in-place terraced roof beam 3, and preformed hole 6 has been seted up to the tip of prefabricated staircase 1, and bolt 5 wears to establish and fixes prefabricated staircase 1 on cast-in-place terraced roof beam 3 in preformed hole 6.
The technical effect that this embodiment reaches does: through the novel bolt connecting structure of the assembly type prefabricated staircase, the same-proportion reduction experiment method and the gradual improvement method are adopted, the prefabricated staircase has higher cost, the prefabricated staircase is self-made on a construction site by the same-proportion reduction method, the installation environment is simulated, the problem can be well found and improved, and the gradual improvement method is to gradually improve because the structural form is different and the installation environment is also different, so that a connecting node with strong applicability is found; the utility model discloses a connected mode, under the prerequisite of having guaranteed security and reliability, reduces the pre-buried degree of difficulty, guarantees pre-buried precision, has improved prefabricated stair's installation effectiveness, has improved the accuracy that main part bolt is pre-buried and prefabricated stair bolt hole was reserved.
Example 2
As shown in fig. 1 to 7, the novel bolt connection structure for prefabricated staircases in this embodiment includes all the technical features of embodiment 1, and in addition, further includes a cement mortar layer 4, and the cement mortar layer 4 is disposed at the connection between the end of the prefabricated staircase 1 and the cast-in-place stair beam 3.
Optionally, the device further comprises a hole-edge reinforcing rib 8, and the hole-edge reinforcing rib 8 is sleeved on the outer periphery of the preformed hole 6.
Optionally, the bolt further comprises a fixing nut gasket 11, the fixing nut gasket 11 is in threaded connection with the top of the bolt 5, and the fixing nut gasket 11 is fastened on the hole edge reinforcing rib 8.
The beneficial effects in this embodiment are: the cement mortar layer 4 is arranged, so that the bonding strength of the connecting part of the end part of the prefabricated staircase 1 and the cast-in-place staircase beam 3 is enhanced; the strength of the preformed hole 6 is enhanced by arranging the hole edge reinforcing rib 8; through setting up fixation nut gasket 11, played the better fastening effect to bolt 5.
Example 3
As shown in fig. 1 to 7, the novel bolt connection structure for prefabricated stairways in this embodiment includes all the technical features of embodiment 2, and in addition, further includes a polystyrene board filling layer 7, and the polystyrene board filling layer 7 is disposed between the top end of the prefabricated stairway 1 and the vertical surface of the landing board 2.
Optionally, a seam 10 is provided between the bottom end of the prefabricated staircase 1 and the vertical surface of the landing slab 2.
The beneficial effects in this embodiment are: the polystyrene board filling layer 7 is arranged, so that a good spacing effect is achieved; by providing the remaining seam 10, safety and stability are improved.
Example 4
As shown in fig. 1 to 7, the novel bolt connection structure for prefabricated staircases in this embodiment includes all the technical features of embodiment 3, and in addition, includes a plate rib 9, and the plate rib 9 is embedded in the platform plate 2.
The beneficial effects in this embodiment are: through setting up the lath 9, strengthened the intensity of landing slab.
Example 5
As shown in fig. 1 to 7, the novel bolt connection structure for prefabricated staircases in this embodiment includes all the technical features of embodiment 4, and in addition, further includes a steel bar anchoring plate disposed at the lower end of the bolt 5.
Optionally, the prefabricated staircase further comprises a raft 12, and the raft 12 is arranged at the lower end of the prefabricated staircase 1.
Optionally, a support beam 13 is further included, the support beam 13 is disposed on the lower side of the platform plate 2, and the upper end of the support beam 13 is further connected to the floor 14.
The beneficial effects in this embodiment are: through setting up reinforcing bar anchor plate, the stability of the lower extreme of bolt 5 has been strengthened.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.
Claims (10)
1. The utility model provides a novel bolted connection structure of prefabricated stair of assembled, a serial communication port, including prefabricated stair (1), landing slab (2), bolt (5) and cast-in-place terraced roof beam (3), the lower extreme of landing slab (2) is provided with cast-in-place terraced roof beam (3), preformed hole (6) have been seted up to the tip of prefabricated stair (1), bolt (5) are worn to establish will in preformed hole (6) prefabricated stair (1) are fixed on cast-in-place terraced roof beam (3).
2. The novel bolt connection structure of prefabricated staircase according to claim 1, characterized in that it further comprises a cement mortar layer (4), said cement mortar layer (4) is arranged at the connection of said prefabricated staircase (1) end and said cast-in-place staircase beam (3).
3. The novel bolt connection structure of prefabricated staircase according to claim 1, characterized in that it further comprises a hole-edge reinforcing rib (8), said hole-edge reinforcing rib (8) is sleeved on the outer periphery of said preformed hole (6).
4. The novel bolt connection structure of prefabricated staircase according to claim 3, characterized in that it further comprises a fixing nut gasket (11), said fixing nut gasket (11) is in threaded connection with the top of said bolt (5), said fixing nut gasket (11) is fastened on said hole-edge reinforcing rib (8).
5. The novel bolt connection structure of prefabricated staircase according to claim 1, characterized in that it further comprises a polystyrene board filling layer (7), and the polystyrene board filling layer (7) is arranged between the top end of the prefabricated staircase (1) and the vertical surface of the landing slab (2).
6. The novel bolt connection structure of prefabricated staircase according to claim 5, characterized in that a gap (10) is provided between the bottom end of prefabricated staircase (1) and the vertical surface of landing slab (2).
7. The novel bolt connection structure of prefabricated staircase according to claim 1, characterized in that it further comprises a plate rib (9), and the plate rib (9) is embedded in the landing slab (2).
8. The novel bolt connection structure of prefabricated staircase according to claim 1, characterized in that it further comprises a steel bar anchoring plate, which is arranged at the lower end of said bolt (5).
9. The novel bolt connection structure of prefabricated staircase according to claim 1, characterized in that it further comprises a raft (12), said raft (12) being disposed at the lower end of said prefabricated staircase (1).
10. The novel bolt connection structure of prefabricated staircase according to claim 1, characterized in that it further comprises a supporting beam (13), said supporting beam (13) is arranged on the lower side of said platform plate (2), the upper end of said supporting beam (13) is connected with the floor (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022372236.1U CN213806250U (en) | 2020-10-22 | 2020-10-22 | Novel bolted connection structure of assembled prefabricated stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022372236.1U CN213806250U (en) | 2020-10-22 | 2020-10-22 | Novel bolted connection structure of assembled prefabricated stair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213806250U true CN213806250U (en) | 2021-07-27 |
Family
ID=76960820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022372236.1U Expired - Fee Related CN213806250U (en) | 2020-10-22 | 2020-10-22 | Novel bolted connection structure of assembled prefabricated stair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213806250U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439114A (en) * | 2022-01-17 | 2022-05-06 | 中国建筑第八工程局有限公司 | Embedded bolt device of assembled stair and construction method thereof |
-
2020
- 2020-10-22 CN CN202022372236.1U patent/CN213806250U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439114A (en) * | 2022-01-17 | 2022-05-06 | 中国建筑第八工程局有限公司 | Embedded bolt device of assembled stair and construction method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210727 |
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| CF01 | Termination of patent right due to non-payment of annual fee |