CN115182526A - High-altitude overhanging stair structure and construction method thereof - Google Patents

High-altitude overhanging stair structure and construction method thereof Download PDF

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Publication number
CN115182526A
CN115182526A CN202210962779.XA CN202210962779A CN115182526A CN 115182526 A CN115182526 A CN 115182526A CN 202210962779 A CN202210962779 A CN 202210962779A CN 115182526 A CN115182526 A CN 115182526A
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CN
China
Prior art keywords
embedded
steel
altitude
overhanging
stair structure
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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
Application number
CN202210962779.XA
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Chinese (zh)
Inventor
涂齐耀
余新
王韦
陈江伟
张政印
李宇航
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Construction Seventh Engineering Division Corp Ltd
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China Construction Seventh Engineering Division Corp Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Construction Seventh Engineering Division Corp Ltd filed Critical China Construction Seventh Engineering Division Corp Ltd
Priority to CN202210962779.XA priority Critical patent/CN115182526A/en
Publication of CN115182526A publication Critical patent/CN115182526A/en
Pending legal-status Critical Current

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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
    • E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
    • E04G13/06—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall
    • E04G13/062—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall for stairs or steps
    • 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
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • 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
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/06—Solidifying concrete, e.g. by application of vacuum before hardening
    • E04G21/08—Internal vibrators, e.g. needle vibrators
    • 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
    • E04F2011/0214—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 cast in situ
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

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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 high-altitude overhanging stair structure and a construction method thereof, wherein the high-altitude overhanging stair structure comprises embedded parts embedded in a main body structure, and steel platforms are connected between the embedded parts; and a template support frame body for pouring the overhanging stair is erected on the steel platform. According to the invention, a pre-buried steel plate with bolt holes and a steel platform are installed on the lower layer of the overhanging stair structure, a template support frame is erected on the steel platform, and then concrete pouring is carried out on the overhanging stair structure; the invention has the advantages of easy construction, simple and convenient operation, practicality and high safety performance, solves the problem of difficult construction of the high-altitude overhanging stair structure, and can be widely applied.

Description

High-altitude overhanging stair structure and construction method thereof
Technical Field
The invention relates to the technical field of overhanging stairs, in particular to a high-altitude overhanging stair structure and a construction method thereof.
Background
Along with the development of the building industry, the safety requirements of people on buildings are higher and higher, the structures are diversified, the super high-rise building is widely applied, particularly, the outer wall structure is provided with a refuge layer and other overhanging stair structures, an aluminum mould and a climbing frame system are adopted in the construction of a general standard layer structure, the overhanging structure cannot follow the main structure for one-time construction, and the following construction process is complex, safe and difficult to construct. Therefore, the high-altitude overhanging stair structure and the construction method become a construction problem in the industry.
Disclosure of Invention
Aiming at the defects in the background technology, the invention provides a high-altitude overhanging stair structure and a construction method thereof, and solves the problem that the subsequent construction of an overhanging stair in the prior art is complex.
The technical scheme of the invention is realized as follows:
a high-altitude overhanging stair structure comprises embedded parts embedded in a main body structure, wherein steel platforms are connected between the embedded parts; and a template support frame body for pouring the overhanging stair is erected on the steel platform.
Furthermore, the steel platform includes the bracket of connection on the built-in fitting, connects the composite beam between the bracket, and the composite beam upper berth is equipped with the decorative pattern steel sheet.
Further, the combination beam comprises a main beam which is detachably connected between the brackets, and secondary beams are connected between the main beams in a crossed manner.
Furthermore, the embedded part comprises embedded steel plates embedded at two sides of the main structure and a steel sleeve embedded in the main structure, two ends of the steel sleeve are connected with the embedded steel plates, and the embedded steel plates are provided with holes communicated with the steel sleeve.
A high-altitude overhanging stair structure and a construction method thereof comprise the high-altitude overhanging stair structure and further comprise the following steps:
s1, positioning and pre-embedding an embedded part when a next layer of main body structure of the cantilever stair to be constructed is constructed;
s2, mounting a steel platform on the embedded part and the main body structure;
s3, erecting a template support frame body on the steel platform;
and S4, pouring concrete to form the overhanging stair.
Further, the method also comprises the step of vibrating the concrete in the step S4 through an inserted vibrating rod.
The invention has the beneficial effects that: according to the invention, a pre-buried steel plate with bolt holes and a steel platform are installed on the lower layer of the overhanging stair structure, a template support frame is erected on the steel platform, and then concrete pouring is carried out on the overhanging stair structure; the invention is easy to construct, simple and convenient to operate, practical and high in safety performance, solves the problem of difficult construction of the high-altitude overhanging stair structure, and can be widely applied.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 isbase:Sub>A schematic cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic cross-sectional view taken along line B-B in FIG. 1;
FIG. 4 is a schematic structural view of an embedment of the present invention;
fig. 5 is a side view of fig. 4.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art based on the embodiments of the present invention without inventive step, are within the scope of the present invention.
As shown in fig. 1 to 3, the high-altitude overhanging stair structure according to embodiment 1 of the present invention includes embedded parts 1 embedded in adjacent main structures, and the main structure is a main structure of a lower floor of an overhanging stair 4 to be constructed. A steel platform 2 is connected between the embedded parts 1 of the adjacent main body structures; a formwork supporting frame body 3 for pouring the overhanging stair 4 is erected on the steel platform 2, and the overhanging stair 4 is poured through concrete to form a complete high-altitude overhanging structure construction method.
Further, as shown in fig. 4 and 5, the embedded part 1 includes embedded steel plates 11 embedded at two sides of the main body structure and a steel sleeve 12 embedded in the main body structure, two ends of the steel sleeve 12 are connected to the embedded steel plates 11, and the embedded steel plates 11 are provided with openings communicated with the steel sleeve 12, in this embodiment, the openings are bolt holes.
Further, as shown in fig. 2, the steel platform 2 includes brackets 21 connected to the embedded part 1, and a composite beam connected between the brackets 21, and a patterned steel plate is laid on the composite beam. The bracket 21 is detachably connected with the embedded part 1 and the main structure by a split bolt passing through the steel sleeve 12. Then, a combination beam is arranged between the brackets 21 of the adjacent main body structures, and a pattern steel plate is laid to form the complete steel platform 2.
Further, as shown in fig. 2, the composite beam includes main beams 22 and secondary beams 23, the main beams 22 are detachably connected between the corbels 21, and the secondary beams 23 are vertically and crossly connected between the main beams 22.
In this embodiment, the pre-buried steel plate is a steel plate of 500mm × 540mm × 4 mm. The main beam 22 of the steel platform adopts a model of HN350 multiplied by 175 multiplied by 7 multiplied by 11, the secondary beam adopts a model of HN244 multiplied by 175 multiplied by 7 multiplied by 11, and the pattern steel plate is 4mm thick.
Embodiment 2 differs from embodiment 1 in that, as shown in fig. 2, the formwork support frame 3 mainly comprises a steel pipe, a fastener, an adjustable U-shaped support, a formwork, and a batten. In the embodiment, the template is a plywood with the thickness of 15mm, and the wood beam is 50mm multiplied by 100mm; the steel pipe is 48X 3.0mm phi and is made of Q235B, the steel pipe comprises an upright stanchion and a cross bar, a phi 36 adjustable U-shaped support is adopted, and the length of the steel pipe inserted into the upright stanchion is not less than 150mm. The distance between the vertical rods is 800mm, the step distance between the horizontal cross rods is 1500mm, the horizontal cross rods are pulled through in two directions, the floor sweeping rods are arranged within 200mm from the ground, and the cross braces are arranged at the longitudinal and transverse directions of 4-6 m; the distance between the wood beams at the bottom of the beam plate is not more than 250mm.
Embodiment 3, which is different from embodiment 1 in that a construction method of a high-altitude overhanging stair structure, comprising the high-altitude overhanging stair structure of claim 1, further comprises the steps of:
s1, positioning and pre-burying an embedded part 1 when a next-layer main body structure of an overhanging stair 4 to be constructed is constructed; the width of the embedded part 1 is the same as that of the wall of the main body structure;
s2, mounting a steel platform 2 on the embedded part 1 and the main body structure; the method comprises the steps that a main beam 22 and a secondary beam 23 are installed on brackets 21 on two sides, and then a closed supporting steel platform 2 is formed by fully paving pattern steel plates;
s3, erecting a template support frame body 3 on the steel platform 2;
and S4, pouring concrete to form the cantilever stair 4.
Further, the method also comprises the step of vibrating the concrete in the step S4 by adopting a ZN60 inserted vibrating spear.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (6)

1. The utility model provides a stair structure encorbelments high altitude which characterized in that: the steel platform embedded structure comprises embedded parts (1) embedded in a main body structure, wherein steel platforms (2) are connected between the embedded parts (1); and a template support frame body (3) for pouring the overhanging stair (4) is erected on the steel platform (2).
2. The high altitude overhanging stair structure of claim 1, wherein: the steel platform (2) comprises brackets (21) connected to the embedded parts (1) and a combined beam connected between the brackets (21), and the combined beam is paved with a pattern steel plate.
3. The high altitude stair structure of claim 2, characterized in that: the combined beam comprises main beams (22) detachably connected among the brackets (21), and secondary beams (23) are connected among the main beams (22) in a cross mode.
4. The high-altitude overhanging stair structure according to any one of claims 1 to 3, wherein: the embedded part (1) comprises embedded steel plates (11) embedded at two sides of the main body structure and steel sleeves (12) embedded in the main body structure, two ends of each steel sleeve (12) are connected with the embedded steel plates (11), and openings communicated with the steel sleeves (12) are formed in the embedded steel plates (11).
5. A construction method of a high-altitude overhanging stair structure is characterized by comprising the following steps: the high-altitude overhanging stair structure comprising the high-altitude overhanging stair structure of claim 1, further comprising the steps of:
s1, positioning and pre-burying an embedded part (1) when a next-layer main body structure of an overhanging stair (4) to be constructed is constructed;
s2, mounting a steel platform (2) on the embedded part (1) and the main body structure;
s3, erecting a formwork support frame body (3) on the steel platform (2);
and S4, pouring concrete to form the overhanging stair (4).
6. The construction method of the high-altitude overhanging stair structure according to claim 5, wherein: and vibrating the concrete in the step S4 by an inserted vibrating spear.
CN202210962779.XA 2022-08-11 2022-08-11 High-altitude overhanging stair structure and construction method thereof Pending CN115182526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210962779.XA CN115182526A (en) 2022-08-11 2022-08-11 High-altitude overhanging stair structure and construction method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210962779.XA CN115182526A (en) 2022-08-11 2022-08-11 High-altitude overhanging stair structure and construction method thereof

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Publication Number Publication Date
CN115182526A true CN115182526A (en) 2022-10-14

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001069004A1 (en) * 2000-03-14 2001-09-20 Tomoya Ota Inner stairs for building and method of constructing it
KR200395552Y1 (en) * 2005-06-20 2005-09-13 대명건영(주) Steel-frame stair structure
CN102444203A (en) * 2011-09-15 2012-05-09 浙江城建建设集团有限公司 High-altitude long-span overhanging corridor type reinforced concrete structure and construction method
CN102733606A (en) * 2011-04-08 2012-10-17 中国建筑第八工程局有限公司 Construction method of high large cantilever structure
CN105298107A (en) * 2015-10-16 2016-02-03 河北中建工程有限公司 High supporting frame of high-altitude large cantilever structure
CN107630531A (en) * 2017-11-03 2018-01-26 中建局华江建设有限公司 A kind of large cantilever clear-water concrete stair and its construction method
CN114232805A (en) * 2022-01-20 2022-03-25 中国建筑第二工程局有限公司 Construction method of ultrahigh-height large-span steel concrete beam hanging structure
CN217000874U (en) * 2022-03-28 2022-07-19 中国建筑第四工程局有限公司 Overhanging supporting die steel platform with large overhanging structure

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001069004A1 (en) * 2000-03-14 2001-09-20 Tomoya Ota Inner stairs for building and method of constructing it
KR200395552Y1 (en) * 2005-06-20 2005-09-13 대명건영(주) Steel-frame stair structure
CN102733606A (en) * 2011-04-08 2012-10-17 中国建筑第八工程局有限公司 Construction method of high large cantilever structure
CN102444203A (en) * 2011-09-15 2012-05-09 浙江城建建设集团有限公司 High-altitude long-span overhanging corridor type reinforced concrete structure and construction method
CN105298107A (en) * 2015-10-16 2016-02-03 河北中建工程有限公司 High supporting frame of high-altitude large cantilever structure
CN107630531A (en) * 2017-11-03 2018-01-26 中建局华江建设有限公司 A kind of large cantilever clear-water concrete stair and its construction method
CN114232805A (en) * 2022-01-20 2022-03-25 中国建筑第二工程局有限公司 Construction method of ultrahigh-height large-span steel concrete beam hanging structure
CN217000874U (en) * 2022-03-28 2022-07-19 中国建筑第四工程局有限公司 Overhanging supporting die steel platform with large overhanging structure

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