CN111088877A - Fully-prefabricated combined stair - Google Patents
Fully-prefabricated combined stair Download PDFInfo
- Publication number
- CN111088877A CN111088877A CN201911353466.9A CN201911353466A CN111088877A CN 111088877 A CN111088877 A CN 111088877A CN 201911353466 A CN201911353466 A CN 201911353466A CN 111088877 A CN111088877 A CN 111088877A
- Authority
- CN
- China
- Prior art keywords
- prefabricated
- staircase
- ladder
- fully
- half space
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011440 grout Substances 0.000 claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 5
- 239000011148 porous material Substances 0.000 claims description 25
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4157—Longitudinally-externally threaded elements extending from the concrete or masonry, e.g. anchoring bolt with embedded head
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F2011/0203—Miscellaneous features of stairways not otherwise provided for
- E04F2011/0205—Stairways characterised by the use of specific materials for the supporting structure of the treads
- E04F2011/021—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of stone or stone like materials, e.g. concrete; mainly of glass
- E04F2011/0212—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of stone or stone like materials, e.g. concrete; mainly of glass mainly of concrete
Abstract
The invention belongs to the field of assembly type buildings, and particularly relates to a fully-prefabricated combined stair. Including prefabricated staircase, prefabricated ladder beam, prefabricated half space and be used for supporting prefabricated half space's prefabricated halfpace, prefabricated ladder beam with prefabricated staircase prefabricated half space with prefabricated half space with all connect through the reinforcing bar grout between the prefabricated halfpace. The invention adopts the ladder posts, the ladder beams and the rest platform plate to be prefabricated completely, so that the whole stair is constructed in an assembly mode, the embarrassment situation that half of the stair uses a cast-in-place process and half of the stair uses a prefabricated process is avoided, the construction speed and quality of the project are improved, and the construction cost is reduced.
Description
Technical Field
The invention belongs to the field of assembly type buildings, and particularly relates to a fully-prefabricated combined stair.
Background
In recent years, the modernization of assembly type buildings and industries is rapidly developed in China. The guidance opinions about the vigorous development of the assembly type building further make clear that green buildings and building materials are actively popularized in the future, and the assembly type building accounts for 30% of the newly built building in about 10 years.
The existing assembled concrete building stairs usually adopt cast-in-place ladder posts, ladder beams and rest platforms. Only the stair sections adopt prefabricated stairs, cast-in-place embedded size and position deviation are inevitable, and later-stage stair installation is difficult and even impossible.
Meanwhile, the rest platform and the ladder beam and ladder column need to be independently poured in advance by adopting a wood formwork, so that the construction period is inevitably influenced and resources are wasted.
Disclosure of Invention
The invention aims to solve the technical problem of providing a fully-prefabricated combined stair, which improves the construction speed and quality of engineering and reduces the manufacturing cost.
The invention is realized by the following steps:
the utility model provides a full prefabricated combination stair, includes prefabricated stair, prefabricated ladder beam, prefabricated half space and is used for supporting prefabricated half space's prefabricated ladder post, prefabricated ladder beam with prefabricated stair prefabricated half space with prefabricated half space with all connect through the reinforcing bar grout between the prefabricated ladder post.
The prefabricated ladder beam with prefabricated staircase with the connection between the prefabricated half space all adopts L type structure to accept.
Prefabricated half space includes integrated into one piece's landing slab, L type roof beam, rectangular beam, L type roof beam the rectangular beam sets up respectively the landing slab both sides, and all are equipped with and are used for pegging graft the slotted hole of prefabricated halfpace, the vertical pre-buried a plurality of in horizontal end of L type roof beam is used for connecting prefabricated staircase's crab-bolt.
The prefabricated ladder post is characterized in that a groove is formed in the center of the top of the prefabricated ladder post, and reinforcing steel bars corresponding to the groove holes are pre-embedded in the prefabricated ladder post, so that the reinforcing steel bars are inserted into the groove holes to be connected.
The height of the cross section of the prefabricated ladder column is equal to the beam width of the L-shaped beam, and the width of the cross section of the prefabricated ladder column is the beam width of the rectangular beam.
The number of the prefabricated ladder posts is four.
The number of the prefabricated staircase is at least two.
The prefabricated ladder post is connected with the floor slab through a plurality of grouting sleeves which are arranged inside the lower section of the prefabricated ladder post in a preset mode.
The lower end of the prefabricated staircase is provided with a pore channel corresponding to an anchor bolt embedded in the connecting structure of the prefabricated staircase; the diameter of the pore canal is big-end-up, and is divided into a big-mouth pore canal and a small-mouth pore canal, the bottom of the big-mouth pore canal is plugged by an anchor bolt fastener during connection, grouting material is poured into the big-mouth pore canal, and the grouting material and the upper part of the anchor bolt are fastened and condensed into a whole.
The anchor bolt fastener is including being used for the shutoff the gasket of wide-mouthed pore way, and with anchor bolt assorted nut.
The length of the large-opening pore canal is less than that of the small-opening pore canal.
"several" in this application refers to two or more.
"steel bar grout is connected" in this application indicates to insert the through-hole with the reinforcing bar, then grout to the through-hole, makes grout material and reinforcing bar fastening condense as an organic whole, forms connection structure.
The invention has the advantages that:
1. the original stair only with prefabricated bench boards is changed into the ladder post, the ladder beam and the rest platform board are all prefabricated, so that the whole stair is constructed in an assembly mode, and the embarrassing situation that half of the stair uses a cast-in-place process and half of the stair uses a prefabricated process is avoided.
2. The original rest platform beam slab is integrated and prefabricated, the hoisting times are reduced, the mold sealing and cast-in-place operation of the superposed members is reduced, and the construction efficiency is improved.
3. The rest platform and the prefabricated ladder column are connected through steel bars and grouting, the number of beam column node mold sealing and cast-in-place operation is reduced, and the construction efficiency is improved.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of a prefabricated rest platform.
Fig. 3 is a side view of fig. 2.
Fig. 4 is a connection structure diagram of the upper end of the prefabricated staircase and the prefabricated rest platform or the prefabricated ladder beam.
Fig. 5 is a connection structure view of the lower end of the prefabricated staircase.
Detailed Description
Example 1
Because the stairs of the existing fabricated concrete building are usually cast in situ by ladder posts, ladder beams and rest platforms. Only the stair sections adopt prefabricated stairs, cast-in-place embedded size and position deviation are inevitable, and later-stage stair installation is difficult and even impossible. The invention provides a fully prefabricated combined stair, which is shown in figure 1. The invention discloses a fully-prefabricated combined stair which comprises a prefabricated stair 1, prefabricated ladder beams 2, prefabricated ladder columns 3 and a prefabricated rest platform 4.
As shown in fig. 2 and 3, the prefabricated rest platform 4 comprises a platform plate 41, an L-shaped beam 42 and a rectangular beam 43 which are integrally formed, wherein the L-shaped beam 42 and the rectangular beam 43 are respectively arranged on two sides of the platform plate 41, and are both provided with a slot hole 44 for connecting the prefabricated ladder post 3.
The center of the top of the prefabricated ladder post 3 is provided with a groove 31 which plays a role in connection and leveling. Because the ladder post is prefabricated, there may be the error in the size, and the uneven atress that causes in surface can be avoided in the design of recess 31, makes the later stage grout connect the back wholeness better. Reinforcing steel bars 33 corresponding to the slotted holes 44 are pre-embedded in the prefabricated ladder posts 3, so that the reinforcing steel bars 33 are inserted into the slotted holes 44 for connection
The number of the prefabricated ladder posts 3 is four.
The number of the prefabricated staircases 1 is two, and a dual-run staircase is formed.
The prefabricated ladder posts 3 are connected with the lower floor slab through a plurality of grouting sleeves 32 which are arranged at the bottoms of the prefabricated ladder posts 3 in a preset mode. Reinforcing steel bars are embedded in the floor slab, grouting connection is adopted, and the ladder posts 3 and the floor slab can be effectively and fixedly connected as cast-in-place.
The lower end of each prefabricated staircase 1 is provided with two longitudinal holes 11 which are arranged at intervals, and anchor bolts 45 corresponding to the holes 11 are embedded in the prefabricated rest platform 4 (positioned at the transverse end of the L-shaped beam 42) and the lower ladder beam which are connected with the lower end of the prefabricated staircase 1, so that the anchor bolts 45 are inserted into the holes 11 for connection. The diameter of the pore canal 11 is big-end-up and small-end, and is divided into a big-end pore canal and a small-end pore canal, the bottom of the big-end pore canal is sealed by the anchor bolt fastener 14 during connection, grouting material is poured into the big-end pore canal, and the grouting material and the upper part of the anchor bolt 45 are fastened and condensed into a whole, so that the small-end pore canal is still a cavity and can move forwards and backwards properly under the action of an earthquake. The main principle is that the grout link is weak position, and this position destroys earlier when the earthquake for crab-bolt 45 limits and moves in the within range of pore 11, reduces the earthquake to stair structure's destruction.
The anchor bolt fastener 14 includes a washer 141 for sealing the wide bore hole and a nut 142 for mating with the anchor bolt.
And hanging ribs (not shown) are also embedded in the prefabricated staircase 1 for hoisting after production.
The fully prefabricated combined stair has the following characteristics:
1. the prefabricated ladder beam 2 is an L-shaped beam and is connected with the main beam by a cattle arm plate;
2. the rest platform 4 is integrally prefabricated and molded;
3. the prefabricated staircase 1 is connected with the prefabricated rest platform 4 and the prefabricated ladder beam 2 through steel bar grouting;
4. the prefabricated column top 3 is provided with a groove 31, so that the shear bearing capacity of the joint after the slot 31 is grouted is enhanced;
5. the four prefabricated ladder posts 3 are produced by the same die, the height of the cross section of each prefabricated ladder post 3 is the width of the L-shaped beam 42, and the width of the cross section of each prefabricated ladder post 3 is the width of the rectangular beam 43.
6. The connection mode of prefabricated halfpace 3 and prefabricated rest platform 4 is: the top of the prefabricated ladder post 3 extends out of the embedded shear steel bar 33, the prefabricated rest platform slot 44 is aligned with the steel bar 33, and the steel bar 33 is ensured to be inserted into the slot 44; the slot 44 is grouted.
7. The connection mode of prefabricated ladder beam 2 and prefabricated staircase 1 upper end is: the prefabricated ladder beam 2 extends out of the embedded anchor bolt 21, the slotted hole 12 of the prefabricated staircase 1 is aligned with the embedded anchor bolt 21, and the embedded anchor bolt 21 is ensured to be inserted into the slotted hole 12; the slot 12 is grouted as shown in fig. 4.
8. The connection mode of prefabricated half space 4 and prefabricated stair 1 upper end does: the prefabricated rest platform 4 extends out of the embedded anchor 45, the slotted hole 13 of the prefabricated staircase is aligned with the embedded anchor 45, and the embedded anchor 45 is ensured to be inserted into the slotted hole 13; the slot 13 is grouted as shown in fig. 4.
9. The connection mode of prefabricated staircase lower extreme does: the lower ladder beam (not shown) and the prefabricated rest platform 4 extend out of the embedded anchor 45, the hole channel 11 at the lower end of the prefabricated staircase 1 is aligned with the embedded anchor 45, the embedded anchor 45 is ensured to be inserted into the hole channel 11, the hole channel 11 is a big hole and a small hole, and the hole channel is blocked by a fastening piece 14; the tunnel 11 is grouted to form a partially grouted connection as shown in figure 5.
10. The prefabricated ladder posts 3 are connected with a floor (not shown) through sleeves, and 15mm of setting grout is reserved at the bottom.
Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.
Claims (10)
1. The utility model provides a full prefabricated combination stair which characterized in that: including prefabricated staircase, prefabricated ladder beam, prefabricated half space and be used for supporting prefabricated half space's prefabricated halfpace, prefabricated ladder beam with prefabricated staircase prefabricated half space with prefabricated half space with all connect through the reinforcing bar grout between the prefabricated halfpace.
2. The fully prefabricated assembled staircase of claim 1, wherein: the prefabricated ladder beam with prefabricated staircase with the connection between the prefabricated half space all adopts L type structure to accept.
3. The fully prefabricated assembled staircase of claim 1, wherein: prefabricated half space includes integrated into one piece's landing slab, L type roof beam, rectangular beam, L type roof beam the rectangular beam sets up respectively the landing slab both sides, and all are equipped with and are used for pegging graft the slotted hole of prefabricated halfpace, the vertical pre-buried a plurality of in horizontal end of L type roof beam is used for connecting prefabricated staircase's crab-bolt.
4. The fully prefabricated assembled staircase of claim 3, wherein: the prefabricated ladder post is characterized in that a groove is formed in the center of the top of the prefabricated ladder post, and reinforcing steel bars corresponding to the groove holes are pre-embedded in the prefabricated ladder post, so that the reinforcing steel bars are inserted into the groove holes to be connected.
5. The fully prefabricated assembled staircase of claim 3, wherein: the height of the cross section of the prefabricated ladder column is equal to the beam width of the L-shaped beam, and the width of the cross section of the prefabricated ladder column is the beam width of the rectangular beam.
6. The fully prefabricated assembled staircase of claim 1, wherein: the number of the prefabricated stairs is two.
7. The fully prefabricated assembled staircase of claim 1, wherein: the prefabricated ladder post is connected with the lower floor through a plurality of grouting sleeves which are preset inside the lower section of the prefabricated ladder post.
8. The fully prefabricated assembled staircase of claim 1, wherein: the lower end of the prefabricated staircase is provided with a pore channel corresponding to an anchor bolt embedded in the connecting structure of the prefabricated staircase; the diameter of the pore canal is big-end-up, and is divided into a big-mouth pore canal and a small-mouth pore canal, the bottom of the big-mouth pore canal is plugged by an anchor bolt fastener during connection, grouting material is poured into the big-mouth pore canal, and the grouting material and the upper part of the anchor bolt are fastened and condensed into a whole.
9. The fully prefabricated assembled staircase of claim 8, wherein: the anchor bolt fastener is including being used for the shutoff the gasket of wide-mouthed pore way, and with anchor bolt assorted nut.
10. The fully prefabricated assembled staircase of claim 8, wherein: the length of the large-opening pore canal is less than that of the small-opening pore canal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911353466.9A CN111088877A (en) | 2019-12-25 | 2019-12-25 | Fully-prefabricated combined stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911353466.9A CN111088877A (en) | 2019-12-25 | 2019-12-25 | Fully-prefabricated combined stair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111088877A true CN111088877A (en) | 2020-05-01 |
Family
ID=70397123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911353466.9A Pending CN111088877A (en) | 2019-12-25 | 2019-12-25 | Fully-prefabricated combined stair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111088877A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809726A (en) * | 2022-02-24 | 2022-07-29 | 三能集成房屋股份有限公司 | Fully-assembled building and assembling method thereof |
| CN115217278A (en) * | 2022-05-25 | 2022-10-21 | 中交一公局集团有限公司 | Assembled prefabricated staircase and installation method thereof |
-
2019
- 2019-12-25 CN CN201911353466.9A patent/CN111088877A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809726A (en) * | 2022-02-24 | 2022-07-29 | 三能集成房屋股份有限公司 | Fully-assembled building and assembling method thereof |
| CN115217278A (en) * | 2022-05-25 | 2022-10-21 | 中交一公局集团有限公司 | Assembled prefabricated staircase and installation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210767243U (en) | Assembled building frame construction | |
| CN201661021U (en) | Prefabricated reinforced concrete stair | |
| CA2407359C (en) | Open web dissymmetric beam construction | |
| US5704181A (en) | Dissymetric beam construction | |
| CN109853783B (en) | Assembled steel plate concrete shear wall structure and construction method | |
| CN105715068A (en) | Underpinning and reinforcing structure for seismic isolation bearing of existing brick-concrete structure and construction method for underpinning and reinforcing structure | |
| CN108775084B (en) | Steel-concrete combined precast beam and precast column connecting structure and construction method | |
| CN111088877A (en) | Fully-prefabricated combined stair | |
| CN212129721U (en) | Fully-prefabricated combined stair | |
| CN109629714A (en) | A kind of prefabricated partition wall of the staircase with installation base and its installation method | |
| CN109057009B (en) | Prefabricated assembled concrete frame dry type node | |
| KR101324884B1 (en) | Hybrid building construction method combining dry type and wet type | |
| CN213539524U (en) | Assembled stair | |
| CN211850480U (en) | Assembled stair system | |
| KR20100121865A (en) | Method for constructing building using prc integrating method | |
| CN109610875B (en) | Assembled floor door frame of existing building with elevator and construction method | |
| CN210086685U (en) | Prefabricated staircase and connection structure of prefabricated staircase and floor slab | |
| CN113445652A (en) | Plate end slotted hole SP hollow composite slab-steel beam connecting structure and construction method thereof | |
| CN207228407U (en) | A kind of prefabricated partition wall of the staircase with installation base | |
| CN112192705B (en) | Prefabricated process for assembled structure | |
| CN111206731A (en) | Assembled stair system and rapid construction method thereof | |
| CN215442785U (en) | Split type prefabricated assembled stair | |
| CN220814619U (en) | Frame type prefabricated stair assembling structure | |
| CN112031159B (en) | Combination structure of precast beam and precast column | |
| CN220267019U (en) | Assembly type combined column structure with steel reinforcement cage on core column |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200927 Address after: 350000, 36 floor, landmark 89, 54 Road, Gulou District, Fujian, Fuzhou Applicant after: FUJIAN JIANGONG GROUP Co.,Ltd. Applicant after: Fujian Construction Engineering Group Co., Ltd Address before: 350000, 36 floor, landmark 89, 54 Road, Gulou District, Fujian, Fuzhou Applicant before: FUJIAN JIANGONG GROUP Co.,Ltd. |
|
| TA01 | Transfer of patent application right |