CN113605617A - Splitting and installing method for prefabricated staircase - Google Patents
Splitting and installing method for prefabricated staircase Download PDFInfo
- Publication number
- CN113605617A CN113605617A CN202110868055.4A CN202110868055A CN113605617A CN 113605617 A CN113605617 A CN 113605617A CN 202110868055 A CN202110868055 A CN 202110868055A CN 113605617 A CN113605617 A CN 113605617A
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- China
- Prior art keywords
- stair
- prefabricated
- cast
- layer
- positioning
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000011065 in-situ storage Methods 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000010276 construction Methods 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 3
- 238000002224 dissection Methods 0.000 claims 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Images
Classifications
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- 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
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/142—Means in or on the elements for connecting same to handling apparatus
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The invention discloses a splitting and installing method of a prefabricated staircase, which comprises the following steps: step one, pouring stair beam concrete to a laying elevation required by a prefabricated stair, and embedding a plurality of positioning bolts at the lug positions of an upper-layer stair beam and a lower-layer stair beam of the cast-in-situ stair; step two, the stairs are composed of a plurality of prefabricated stair plates which are arranged side by side transversely; a plurality of prefabricated stair plates are sequentially hoisted and arranged between an upper-layer stair beam and a lower-layer stair beam of the cast-in-place stair; the upper end and the lower end of the prefabricated stair plate are respectively provided with a positioning hole, positioning bolts of an upper stair beam of the cast-in-situ stair and a lower stair beam of the cast-in-situ stair are respectively inserted into the positioning holes at the upper end and the lower end during hoisting, so that the upper end of the prefabricated stair plate is fixedly connected with the upper stair beam of the cast-in-situ stair, and the lower end of the prefabricated stair plate is fixedly connected with the lower stair beam of the cast-in-situ stair; and step three, filling the positioning holes at the upper end and the lower end of the prefabricated stair boards with grouting material. The invention enables the transportation, hoisting and installation of the prefabricated stair boards to be more convenient.
Description
Technical Field
The invention belongs to the field of buildings, relates to a stair construction method, and particularly relates to a splitting installation method of a prefabricated stair.
Background
At present, the application of the assembly type building structure is more and more extensive, the prefabricated staircase is a staircase form commonly adopted in high-rise buildings, the construction is simple, the consumption is low, and the construction period is short, so that the prefabricated staircase is generally adopted. However, the prefabricated component of the prefabricated stair step plate is too heavy (about 5 tons), and the traditional construction site tower crane cannot hoist the component, so that the cost is inevitably increased if a large-tonnage tower crane is adopted, and the popularization and the application of the prefabricated stair in high-rise buildings are hindered.
Disclosure of Invention
The invention provides a split mounting method for a prefabricated staircase, which overcomes the defects of the prior art.
In order to achieve the purpose, the invention provides a splitting installation method of a prefabricated staircase, which is characterized in that: the method comprises the following steps:
step one, ladder beam structure construction: pouring the stair beam to the required laying elevation of the prefabricated stair to obtain an upper-layer stair beam and a lower-layer stair beam of the cast-in-place stair, and pre-burying a plurality of positioning bolts at the lug positions of the upper-layer stair beam and the lower-layer stair beam of the cast-in-place stair;
step two, hoisting the prefabricated stair boards: the stairs are composed of a plurality of prefabricated stair plates which are arranged side by side in the transverse direction; a plurality of prefabricated stair plates are sequentially hoisted and arranged between an upper-layer stair beam and a lower-layer stair beam of the cast-in-place stair; the upper end and the lower end of the prefabricated stair plate are respectively provided with a positioning hole, positioning bolts of an upper stair beam of the cast-in-situ stair and a lower stair beam of the cast-in-situ stair are respectively inserted into the positioning holes at the upper end and the lower end during hoisting, so that the upper end of the prefabricated stair plate is fixedly connected with the upper stair beam of the cast-in-situ stair, and the lower end of the prefabricated stair plate is fixedly connected with the lower stair beam of the cast-in-situ stair;
and step three, filling the positioning holes at the upper end and the lower end of the prefabricated stair boards with grouting material.
Further, the invention provides a prefabricated staircase splitting and installing method, which can also have the following characteristics: wherein, two adjacent prefabricated stair boards in parallel are connected into a whole through bonding glue.
Further, the invention provides a prefabricated staircase splitting and installing method, which can also have the following characteristics: the prefabricated stair boards are provided with hoisting holes and hoisted in place by rotating universal wheels and steel wire ropes; after the rotary universal wheel is fixedly connected with the hoisting hole of the prefabricated stair board, the steel wire rope is connected with the rotary universal wheel to hoist the prefabricated stair board in place, the prefabricated stair board is aligned and leveled, and the positioning bolt is inserted into the positioning hole.
Further, the invention provides a prefabricated staircase splitting and installing method, which can also have the following characteristics: wherein, the width of a plurality of prefabricated stair boards is equal.
Further, the invention provides a prefabricated staircase splitting and installing method, which can also have the following characteristics: wherein, the positioning bolt is a C-grade bolt with a diameter of 14 mm.
The invention has the beneficial effects that: the invention provides a prefabricated staircase splitting and installing method which can be used for carrying out block prefabrication and block hoisting according to the hoisting capacity of a tower crane, so that the self weight of a single piece of the prefabricated staircase is reduced, namely the weight of single hoisting is reduced, convenience and rapidness in manufacturing, transportation, hoisting and positioning are brought, and the existing tower crane in a construction site can be used for hoisting; on the other hand, the installation process is safe, is easy to adjust in place, and has low cost and high working efficiency.
Drawings
FIG. 1 is a schematic view of positioning bolts embedded at the ears of a ladder beam;
FIG. 2 is a schematic view of a first prefabricated step floor hoisted by rotary universal wheels and steel wire ropes;
FIG. 3 is a schematic view of the first prefabricated step floor being hoisted in place by the rotary universal wheels and the steel wire ropes;
FIG. 4 is a schematic illustration of the first prefabricated step in place;
FIG. 5 is a schematic view of a second prefabricated step floor hoisted by a rotary universal wheel and a steel wire rope;
FIG. 6 is a schematic view of the second prefabricated step floor being hoisted in place by the rotary universal wheels and the steel wire ropes;
FIG. 7 is a schematic view of the second block in place;
FIG. 8 is a schematic view of the positioning holes of the prefabricated step boards filled with slurry.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
The invention provides a splitting and installing method of a prefabricated staircase, which comprises the following steps:
step one, ladder beam structure construction: the stair beam concrete is poured to the required laying elevation of the prefabricated stair to obtain a cast-in-place stair upper-layer stair beam 1 and a cast-in-place stair lower-layer stair beam, and a plurality of positioning bolts 3 are pre-buried at the lug raising positions of the cast-in-place stair upper-layer stair beam 1 and the cast-in-place stair lower-layer stair beam, as shown in figure 1.
Wherein, the positioning bolt 3 is a C-grade bolt with the diameter of 14 mm.
Step two, hoisting the prefabricated stair boards:
the stair comprises the horizontal prefabricated stair board that sets up side by side of a plurality of, and the stair comprises two prefabricated stair boards in this embodiment. The widths of the two prefabricated stair boards are equal.
As shown in fig. 2-7, two prefabricated stair plates 4 are hoisted in sequence and arranged between the cast-in-place stair upper-layer stair beam 1 and the cast-in-place stair lower-layer stair beam 2. The upper end and the lower end of the prefabricated stair plate 4 are respectively provided with a positioning hole 5, and positioning bolts 3 of the upper stair beam 1 of the cast-in-place stair and the lower stair beam 2 of the cast-in-place stair are respectively inserted into the positioning holes 5 at the upper end and the lower end during hoisting, so that the upper end of the prefabricated stair plate 4 is fixedly connected with the upper stair beam 1 of the cast-in-place stair, and the lower end of the prefabricated stair plate is fixedly connected with the lower stair beam 2 of the cast-in-place stair.
Wherein, prefabricated step board 4 is equipped with the hole for hoist and mount, hoists through rotatory universal wheel 6 and wire rope 7 and takes one's place: after the rotary universal wheel 6 is fixedly connected with a hoisting hole of the prefabricated stair board 4, the steel wire rope 7 is connected with the rotary universal wheel 6 to hoist the prefabricated stair board 4 in place, the horizontal position is adjusted by the adjusting block, the leveling is aligned, and the positioning bolt 3 is inserted into the positioning hole 5. The steel wire ropes 7 are four steel wire ropes with two long ends and two short ends. After the first prefabricated stair board is hoisted through the rotary universal wheel and the steel wire rope, the rotary universal wheel and the steel wire rope are taken down and installed on the second prefabricated stair board for hoisting.
Wherein, two adjacent prefabricated stair boards 4 in parallel are connected into a whole through bonding glue.
And step three, as shown in fig. 8, filling the positioning holes 5 at the upper end and the lower end of the prefabricated stair boards 4 with grouting material.
The grouting material is M10 cement mortar and C40 level grouting material.
Claims (5)
1. The utility model provides a prefabricated staircase mounting method of cutting open which characterized in that:
the method comprises the following steps:
step one, ladder beam structure construction: pouring the stair beam to the required laying elevation of the prefabricated stair to obtain an upper-layer stair beam and a lower-layer stair beam of the cast-in-place stair, and pre-burying a plurality of positioning bolts at the lug positions of the upper-layer stair beam and the lower-layer stair beam of the cast-in-place stair;
step two, hoisting the prefabricated stair boards: the stairs are composed of a plurality of prefabricated stair plates which are arranged side by side in the transverse direction; a plurality of prefabricated stair plates are sequentially hoisted and arranged between an upper-layer stair beam and a lower-layer stair beam of the cast-in-place stair;
the upper end and the lower end of the prefabricated stair plate are respectively provided with a positioning hole, positioning bolts of an upper stair beam of the cast-in-situ stair and a lower stair beam of the cast-in-situ stair are respectively inserted into the positioning holes at the upper end and the lower end during hoisting, so that the upper end of the prefabricated stair plate is fixedly connected with the upper stair beam of the cast-in-situ stair, and the lower end of the prefabricated stair plate is fixedly connected with the lower stair beam of the cast-in-situ stair;
and step three, filling the positioning holes at the upper end and the lower end of the prefabricated stair boards with grouting material.
2. The prefabricated staircase dissection installation method according to claim 1, characterized in that:
wherein, two adjacent prefabricated stair boards in parallel are connected into a whole through bonding glue.
3. The prefabricated staircase dissection installation method according to claim 1, characterized in that:
the prefabricated stair boards are provided with hoisting holes and hoisted in place by rotating universal wheels and steel wire ropes; after the rotary universal wheel is fixedly connected with the hoisting hole of the prefabricated stair board, the steel wire rope is connected with the rotary universal wheel to hoist the prefabricated stair board in place, the prefabricated stair board is aligned and leveled, and the positioning bolt is inserted into the positioning hole.
4. The prefabricated staircase dissection installation method according to claim 1, characterized in that: wherein, the width of a plurality of prefabricated stair boards is equal.
5. The prefabricated staircase dissection installation method according to claim 1, characterized in that:
wherein, the positioning bolt is a C-grade bolt with a diameter of 14 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110868055.4A CN113605617A (en) | 2021-07-30 | 2021-07-30 | Splitting and installing method for prefabricated staircase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110868055.4A CN113605617A (en) | 2021-07-30 | 2021-07-30 | Splitting and installing method for prefabricated staircase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113605617A true CN113605617A (en) | 2021-11-05 |
Family
ID=78306138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110868055.4A Pending CN113605617A (en) | 2021-07-30 | 2021-07-30 | Splitting and installing method for prefabricated staircase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113605617A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499663A (en) * | 2014-12-11 | 2015-04-08 | 济南轨道交通集团有限公司 | Concrete stair and assembling method of concrete stair |
| CN106930484A (en) * | 2017-03-15 | 2017-07-07 | 中建三局第建设工程有限责任公司 | For the full precast stairway system and construction method of prefabricated concrete structure |
| CN111155728A (en) * | 2020-02-25 | 2020-05-15 | 中国建筑第四工程局有限公司 | Method for reducing hoisting weight of prefabricated staircase and prefabricated staircase structure |
-
2021
- 2021-07-30 CN CN202110868055.4A patent/CN113605617A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499663A (en) * | 2014-12-11 | 2015-04-08 | 济南轨道交通集团有限公司 | Concrete stair and assembling method of concrete stair |
| CN106930484A (en) * | 2017-03-15 | 2017-07-07 | 中建三局第建设工程有限责任公司 | For the full precast stairway system and construction method of prefabricated concrete structure |
| CN111155728A (en) * | 2020-02-25 | 2020-05-15 | 中国建筑第四工程局有限公司 | Method for reducing hoisting weight of prefabricated staircase and prefabricated staircase structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211105 |
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| RJ01 | Rejection of invention patent application after publication |