CN114776003A - Rectangular reinforcing steel bar support frame and method for controlling space between cast-in-place stair reinforcing steel bar meshes - Google Patents
Rectangular reinforcing steel bar support frame and method for controlling space between cast-in-place stair reinforcing steel bar meshes Download PDFInfo
- Publication number
- CN114776003A CN114776003A CN202210288358.3A CN202210288358A CN114776003A CN 114776003 A CN114776003 A CN 114776003A CN 202210288358 A CN202210288358 A CN 202210288358A CN 114776003 A CN114776003 A CN 114776003A
- Authority
- CN
- China
- Prior art keywords
- rectangular
- stair
- steel bar
- layer
- frame
- 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
- 229910001294 Reinforcing steel Inorganic materials 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 72
- 239000010959 steel Substances 0.000 claims abstract description 72
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 51
- 238000009415 formwork Methods 0.000 claims abstract description 43
- 238000011065 in-situ storage Methods 0.000 claims abstract 2
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 abstract description 81
- 239000011241 protective layer Substances 0.000 abstract description 12
- 238000010276 construction Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Images
Classifications
-
- 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
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
- E04C5/04—Mats
-
- 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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention relates to the technical field of stair construction, aims to solve the problems of inconvenience in erecting a stair formwork support, uneven control of the space between upper and lower layers of a stair, insufficient thickness of a stair bottom plate reinforcing steel bar protective layer and the like in the prior art, and provides a rectangular reinforcing steel bar support frame and a method for controlling the space between cast-in-situ stair reinforcing steel bar meshes; the rectangular steel bar support frame comprises an upper rectangular frame and a lower rectangular frame which are parallel to each other, and the upper rectangular frame and the lower rectangular frame are connected through a plurality of vertical components to form a cage-shaped structure; two ends of the vertical member extend out of the surfaces of the upper rectangular frame and the lower rectangular frame respectively, and the length of the vertical member is greater than the distance between the upper layer of reinforcing mesh and the lower layer of reinforcing mesh of the stair; a sleeve is arranged in the cage-shaped structure, the sleeve is connected with the upper layer rectangular frame and the lower layer rectangular frame, and the sleeve is connected with a formwork support upright rod fixing seat; the invention has the advantages of ensuring the interval between the upper and lower layers of the stair, controlling the thickness of the protective layer of the stair bottom plate steel bars, providing bottom support for the upper-layer stair formwork support and the like.
Description
Technical Field
The invention relates to the technical field of stair construction, in particular to a rectangular reinforcing steel bar support frame and a method for controlling the space between reinforcing steel bar meshes of a cast-in-place stair.
Background
The cast-in-place stair is widely applied to the field of current building construction. But the reasons such as the irregularity of stair, inclined plane structure cause its template support to set up inconveniently, stair upper and lower floor reinforcing bar interval control is uneven, stair bottom plate reinforcing bar protective layer thickness is not enough and the stair is stepped on by constructor as the frequent upper portion reinforcing bar of construction passageway and leads to the deformation. The actual distance control of the reinforcing mesh and the thickness control of the reinforcing protective layer have the following modes:
(1) the step-type stair steel bar mesh piece interval control uses herringbone steel bar stirrups (field processing or customization) and is placed between an upper steel bar mesh piece and a lower steel bar mesh piece according to a certain interval. In the method, because the stair template is an inclined plane, the stirrup of the reinforcing steel bar is not fixed well, and in addition, constructors walk on the reinforcing steel bar on the upper layer, the stirrup is displaced seriously, the reinforcing steel bars on the upper layer and the lower layer are deformed, the space between the reinforcing steel bars of the stair is uneven, and the quality problem exists after the concrete is poured and molded.
(2) The stair lower part steel bar protective layer is controlled, a concrete cushion block or a plastic cushion block is used and placed between the lower part steel bar and the template, and the effect of controlling the thickness of the stair bottom steel bar protective layer is achieved. Because of the template is an inclined plane, and the surface is smooth, the cushion of placing often slides downwards along the template, can not play the protective steel bar layer thickness control effect, often leads to on stair bottom plate reinforcing bar pastes and the template, protective steel bar layer thickness is serious not enough.
(3) When the floor is higher, have and run the stair more, have perpendicular and run the stair more and prop up the mould simultaneously, pour simultaneously. The upper formwork support frame needs to be erected on the next stair steel bar. The common method is to weld the cross steel bar support in the steel bar net piece of the lower-layer stair for the upright stanchion of the upper-layer stair support formwork to be fixed, and after the concrete is completely poured, the exposed cross steel bar support is cut off, so that the steel bars are wasted, and the steel bars of the lower-layer stair are disturbed during construction.
Disclosure of Invention
The invention aims to provide a rectangular reinforcing steel bar support frame and a method for controlling the space between cast-in-place stair reinforcing steel bar meshes, and aims to solve the problems that in the prior art, a stair formwork support frame is inconvenient to erect, the space between upper and lower layers of reinforcing steel bars of a stair is uneven to control, the thickness of a stair bottom plate reinforcing steel bar protective layer is insufficient, and the stair is used as a construction channel, and the upper reinforcing steel bar is frequently stepped by constructors to cause deformation.
The invention is realized by adopting the following technical scheme:
a rectangular steel bar support frame comprises an upper rectangular frame and a lower rectangular frame which are arranged in parallel, wherein the upper rectangular frame and the lower rectangular frame are connected through a plurality of vertical components to form a cage-shaped structure;
two ends of the vertical member extend out of the surfaces of the upper rectangular frame and the lower rectangular frame respectively, and the length of the vertical member is larger than the distance between the upper layer of reinforcing mesh and the lower layer of reinforcing mesh of the stair;
the cage-shaped structure is internally provided with a sleeve, the sleeve is connected with the upper rectangular frame and the lower rectangular frame, and the sleeve is connected with a formwork support vertical rod fixing seat.
According to the invention, the rectangular reinforcing steel bar support frame is used for replacing an original cast-in-place stair stirrup, and is stably supported between the reinforcing steel bar net sheets on the upper layer and the lower layer of the stair, so that the space between the reinforcing steel bar net sheets on the upper layer and the lower layer of the stair is ensured; the vertical member can extend out of the reinforcing mesh sheets at the lower layer of the stair, and the specific extending length is determined according to the actual working condition, so that the thickness of the reinforcing steel bar protective layer of the stair bottom plate can be controlled; when the multilayer stairs are constructed simultaneously, the bottom support is provided for the upper-layer stair formwork support, namely, the formwork support upright rod fixing seat is fixed on the sleeve, and the formwork support is connected to the formwork support upright rod fixing seat; can provide trampling point for the operation personnel stair is current, avoid upper reinforcing bar to be trampled the deformation.
As a preferred technical scheme:
the rectangular steel bar support frame is arranged between the upper and lower layers of steel bar net sheets of the stairs, and two ends of the vertical component are respectively used for being bound and connected with the upper and lower layers of steel bar net sheets of the stairs.
As a preferred technical scheme:
the upper rectangular frame and the lower rectangular frame are formed by splicing a plurality of reinforcing steel bars.
As a preferred technical scheme:
the upper layer rectangular frame and the lower layer rectangular frame are formed by splicing a plurality of angle steels or rectangular pipes.
As a preferable technical scheme:
the vertical member is a steel bar.
As a preferred technical scheme:
the length of the rectangular reinforcing steel bar support frame is smaller than the width of the stair.
As a preferred technical scheme:
the length of the rectangular reinforcing steel bar support frame is 200mm less than the width of the stairs.
As a preferred technical scheme:
the upright rod fixing seat of the formwork support is of a cross structure.
As a preferable technical scheme:
the support die frame upright rod fixing seat is in threaded connection with the sleeve.
A method for controlling the interval of cast-in-place stair steel bar meshes comprises the following steps:
the method comprises the following steps: installing a lower-layer stair bottom plate reinforcing steel bar mesh, installing the rectangular reinforcing steel bar support frame on the lower-layer stair bottom plate reinforcing steel bar mesh, binding and fixing the lower-layer stair bottom plate reinforcing steel bar mesh and the rectangular reinforcing steel bar support frame, installing a lower-layer stair panel reinforcing steel bar mesh, and binding and fixing the lower-layer stair panel reinforcing steel bar mesh and the rectangular reinforcing steel bar support frame;
step two: adjusting the height of a formwork support upright rod fixing seat on the rectangular steel bar supporting frame, and erecting an upper-layer stair formwork support;
step three: installing an upper-layer stair bottom plate reinforcing mesh, installing the rectangular reinforcing steel bar support frame on the upper-layer stair bottom plate reinforcing mesh, binding and fixing the upper-layer stair bottom plate reinforcing mesh and the rectangular reinforcing steel bar support frame, installing an upper-layer stair panel reinforcing steel bar mesh, and binding and fixing the upper-layer stair panel reinforcing steel bar mesh and the rectangular reinforcing steel bar support frame;
step four: pouring two layers of stair concrete;
step five: and removing the formwork support and the formwork support upright fixing seat, and plugging the sleeve hole connected with the formwork support upright fixing seat.
The rectangular reinforcing steel bar support frame is arranged between the stair bottom plate reinforcing steel bar mesh and the panel reinforcing steel bar mesh, so that the space between the stair bottom plate reinforcing steel bar mesh and the panel reinforcing steel bar mesh can be controlled; the vertical members on the rectangular reinforcing steel bar support frames extend out of the surface of the lower rectangular frame, so that the thickness of the reinforcing steel bar protective layer of the stair bottom plate can be controlled; because install the sleeve on rectangular steel bar support frame, the sleeve is connected with formwork support pole fixing base, sets up upper stair formwork support on the formwork support pole fixing base to can realize that two-layer stair pours simultaneously.
As a preferable technical scheme:
in the first step and the third step, the rectangular steel bar support frame is arranged along the length direction of the stair.
As a preferable technical scheme:
the rectangular steel bar support frames are arranged at intervals of 1m along the length direction of the stair.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
according to the invention, the rectangular reinforcing steel bar support frame is used for replacing the original cast-in-place stair stirrup, and is stably supported between the reinforcing steel bar net sheets on the upper layer and the lower layer of the stair, so that the space between the reinforcing steel bar net sheets on the upper layer and the lower layer of the stair is ensured; the vertical members extend out of the surface of the lower rectangular frame instead of the cushion blocks, so that the thickness of the protective layer of the reinforcing steel bar of the stair bottom plate can be controlled; when the multilayer stairs are constructed simultaneously, the bottom support is provided for the upper-layer stair formwork support, namely, the formwork support upright rod fixing seat is fixed on the sleeve, and the formwork support is connected to the formwork support upright rod fixing seat; can provide for the operation personnel stair current trample the point, avoid upper reinforcing bar to be trampled the deformation.
Drawings
Fig. 1 is a schematic structural view of a rectangular reinforcing steel bar support frame according to the present invention.
Fig. 2 is a schematic view of the installation of the rectangular reinforcing steel bar support frame according to the present invention.
Icon: 1-upper rectangular frame, 2-lower rectangular frame, 3-vertical steel bars, 4-steel bar sleeves, 5-formwork support vertical rod fixing seats, 6-stair formwork support, 7-upper cast-in-place stairs, 8-lower cast-in-place stairs, 9-rectangular steel bar support frames, 10-lower stair bottom plate steel bar net pieces, 11-lower stair panel steel bar net pieces, 12-upper stair bottom plate steel bar net pieces and 13-upper stair panel steel bar net pieces.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-2, the present embodiment provides a rectangular reinforcing steel bar support frame, which includes an upper layer rectangular frame 1 and a lower layer rectangular frame 2, which are arranged in parallel, and the upper layer rectangular frame 1 and the lower layer rectangular frame 2 are connected by a plurality of vertical reinforcing steel bars 3 to form a cage-shaped structure; the upper-layer rectangular frame 1 and the lower-layer rectangular frame 2 are formed by welding a plurality of steel bars.
The utility model discloses a stair bottom plate reinforcement protection layer, including vertical reinforcing bar 3, upper rectangular frame 1 and lower floor rectangular frame 2, vertical reinforcing bar 3's both ends are stretched out respectively upper rectangular frame 1 with the surface of lower floor rectangular frame 2, vertical reinforcing bar 3's length is greater than the interval of two-layer reinforcing bar net piece about the stair, rectangle steel bar support frame 9 sets up between two-layer reinforcing bar net piece about the stair, vertical reinforcing bar 3's both ends are used for respectively with two-layer reinforcing bar net piece ligature connection about the stair, just vertical reinforcing bar 3 stretches out stair lower floor's reinforcing bar net piece for control stair bottom plate reinforcement protection layer thickness, the length that specifically stretches out is confirmed according to operating condition. It should be noted that, for each layer of stairs, two layers of steel bar meshes are included, and the rectangular steel bar support frame 9 is arranged between the two layers of steel bar meshes.
Be equipped with steel sleeve 4 in the cage-like structure, steel sleeve 4 with upper rectangle frame 1 lower floor's rectangle frame 2 welding, steel sleeve 4 is connected with formwork support pole setting fixing base 5, formwork support pole setting fixing base 5 props for the cross reinforcing bar, the cross reinforcing bar prop with 4 threaded connection of steel sleeve.
In this embodiment, according to actual need, be equipped with a plurality ofly between two-layer reinforcing bar net piece about the stair rectangle steel bar support frame 9, the interval 1m arranges between the rectangle steel bar support frame 9, the length of rectangle steel bar support frame 9 is 200mm less than the stair width.
In this embodiment, all nodes (steel bars and steel bars, and steel bars and steel bar sleeves 4) in the rectangular steel bar support frame 9 are welded firmly by electric welding, and the phi 20 steel bar sleeves 4 are in straight threaded connection with the cross bracing steel bars HRB400 phi 20; considering the length of a steel bar protective layer according to a drawing by the expenditure length of the vertical steel bar 3HRB400 phi 12; the HRB400 phi 8 space of the horizontal support steel bars is manufactured according to the space of the steel bars on the upper layer and the lower layer of the stair; the upper part of the steel bar sleeve 4 is extended to be flush with the concrete surface at the upper part of the stair.
According to the invention, the rectangular reinforcing steel bar support frame is used for replacing the original cast-in-place stair stirrup, and is stably supported between the reinforcing steel bar net sheets on the upper layer and the lower layer of the stair, so that the space between the reinforcing steel bar net sheets on the upper layer and the lower layer of the stair is ensured; the vertical steel bars 3 extend out of the surface of the steel bar mesh at the lower layer of the stair instead of the cushion blocks, so that the thickness of the steel bar protective layer of the stair bottom plate can be controlled; when the multi-layer stairs are constructed simultaneously, the bottom support is provided for the upper-layer stair formwork support 6, namely, the formwork support vertical rod fixing seat 5 is fixed on the steel bar sleeve 4, and the stair formwork support 6 is connected to the formwork support vertical rod fixing seat 5; can provide trampling point for the operation personnel stair is current, avoid upper reinforcing bar to be trampled the deformation.
Specifically, the method for controlling the space between the cast-in-place stair steel bar meshes comprises the following steps:
the method comprises the following steps: installing a lower-layer stair bottom plate reinforcing steel bar mesh piece 10, installing the rectangular reinforcing steel bar support frame 9 on the lower-layer stair bottom plate reinforcing steel bar mesh piece 10, binding and fixing the lower-layer stair bottom plate reinforcing steel bar mesh piece 10 and the rectangular reinforcing steel bar support frame 9, installing a lower-layer stair panel reinforcing steel bar mesh piece 11, and binding and fixing the lower-layer stair panel reinforcing steel bar mesh piece 11 and the rectangular reinforcing steel bar support frame 9;
step two: adjusting the height of a formwork support vertical rod fixing seat 5 on the rectangular steel bar supporting frame 9, and erecting an upper-floor ladder formwork support 6;
step three: installing an upper-layer stair bottom plate reinforcing mesh 12, installing the rectangular reinforcing steel bar support frame 9 on the upper-layer stair bottom plate reinforcing mesh 12, binding and fixing the upper-layer stair bottom plate reinforcing mesh 12 and the rectangular reinforcing steel bar support frame 9, installing an upper-layer stair panel reinforcing steel bar mesh 13, and binding and fixing the upper-layer stair panel reinforcing steel bar mesh 13 and the rectangular reinforcing steel bar support frame 9;
step four: pouring two layers of stair concrete;
step five: and removing the stair formwork support 6 and the formwork support vertical rod fixing seat 5, and plugging the sleeve hole connected with the formwork support vertical rod fixing seat 5.
In the first step and the third step, the rectangular reinforcing steel bar supporting frames 9 are arranged at intervals of 1m along the length direction of the stair.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a rectangle reinforcing bar support frame which characterized in that:
the cage-shaped frame structure comprises an upper rectangular frame and a lower rectangular frame which are arranged in parallel, wherein the upper rectangular frame and the lower rectangular frame are connected through a plurality of vertical components to form a cage-shaped structure;
two ends of the vertical member extend out of the surfaces of the upper rectangular frame and the lower rectangular frame respectively, and the length of the vertical member is larger than the distance between the upper layer of reinforcing mesh and the lower layer of reinforcing mesh of the stair;
the cage-shaped structure is internally provided with a sleeve, the sleeve is connected with the upper rectangular frame and the lower rectangular frame, and the sleeve is connected with a formwork support vertical rod fixing seat.
2. The rectangular rebar support stand of claim 1, wherein:
the rectangular steel bar support frame is arranged between the upper and lower layers of steel bar meshes of the stairs, and two ends of the vertical component are respectively used for being bound and connected with the upper and lower layers of steel bar meshes of the stairs.
3. The rectangular rebar support stand of claim 1, wherein:
the upper rectangular frame and the lower rectangular frame are formed by splicing a plurality of reinforcing steel bars.
4. The rectangular rebar support stand of claim 1, wherein:
the upper layer rectangular frame and the lower layer rectangular frame are formed by splicing a plurality of angle steels or rectangular pipes.
5. The rectangular rebar support stand of claim 3, wherein:
the vertical member is a steel bar.
6. The rectangular rebar support stand of claim 1, wherein:
the length of the rectangular reinforcing steel bar support frame is smaller than the width of the stair.
7. The rectangular rebar support stand of claim 1, wherein:
the support die frame upright rod fixing seat is of a cross structure.
8. The rectangular rebar support stand of claim 7, wherein:
the support die frame upright rod fixing seat is in threaded connection with the sleeve.
9. A method for controlling the interval of cast-in-situ stair reinforcement meshes is characterized in that: the method comprises the following steps:
the method comprises the following steps: installing a lower-layer stair bottom plate reinforcing mesh, installing the rectangular reinforcing cage according to any one of claims 1-8 on the lower-layer stair bottom plate reinforcing mesh, binding and fixing the lower-layer stair bottom plate reinforcing mesh with the rectangular reinforcing cage, installing a lower-layer stair panel reinforcing mesh, and binding and fixing the lower-layer stair panel reinforcing mesh with the rectangular reinforcing cage;
step two: adjusting the height of a formwork support vertical rod fixing seat on the rectangular steel bar supporting frame, and erecting an upper-floor ladder formwork support;
step three: installing an upper-layer stair bottom plate reinforcing mesh, installing the rectangular reinforcing cage according to any one of claims 1-8 on the upper-layer stair bottom plate reinforcing mesh, binding and fixing the upper-layer stair bottom plate reinforcing mesh with the rectangular reinforcing cage, installing an upper-layer stair panel reinforcing mesh, and binding and fixing the upper-layer stair panel reinforcing mesh with the rectangular reinforcing cage;
step four: pouring two layers of stair concrete;
step five: and removing the formwork support and the formwork support vertical rod fixing seat, and plugging the sleeve hole connected with the formwork support vertical rod fixing seat.
10. The method of controlling the pitch of cast-in-place stair rebar mesh sheets of claim 9, wherein:
in the first step and the third step, the rectangular steel bar support frame is arranged along the length direction of the stair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210288358.3A CN114776003A (en) | 2022-03-23 | 2022-03-23 | Rectangular reinforcing steel bar support frame and method for controlling space between cast-in-place stair reinforcing steel bar meshes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210288358.3A CN114776003A (en) | 2022-03-23 | 2022-03-23 | Rectangular reinforcing steel bar support frame and method for controlling space between cast-in-place stair reinforcing steel bar meshes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114776003A true CN114776003A (en) | 2022-07-22 |
Family
ID=82425634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210288358.3A Pending CN114776003A (en) | 2022-03-23 | 2022-03-23 | Rectangular reinforcing steel bar support frame and method for controlling space between cast-in-place stair reinforcing steel bar meshes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114776003A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6354403B1 (en) * | 1998-05-21 | 2002-03-12 | Richard Truckner | Adjustable stair stringer and railing |
| KR20100055900A (en) * | 2008-11-18 | 2010-05-27 | 박덕용 | Construction frame for staircase tail of structure and constructing mathod using the same |
| KR20100076166A (en) * | 2008-12-26 | 2010-07-06 | 재단법인 포항산업과학연구원 | Variable support system of steel stair with preceding construction method type |
| CN203320968U (en) * | 2013-06-14 | 2013-12-04 | 北京城建二建设工程有限公司 | Rectangular hanging split heads support |
| CN203961130U (en) * | 2014-04-30 | 2014-11-26 | 浙江广厦建设职业技术学院 | A kind of stair rebar spacing and protective layer thickness control tool |
| CN105113786A (en) * | 2015-08-17 | 2015-12-02 | 刘海宁 | Pad block support system for supporting fixed adjustable cast-in-situ stair formwork |
| CN206917093U (en) * | 2017-07-17 | 2018-01-23 | 山西八建集团有限公司 | Cylindrical floor bar protective layer positioning fixture and the mould for making fixture |
| CN209308285U (en) * | 2018-12-14 | 2019-08-27 | 中铁七局集团第五工程有限公司 | Cast-in-situ stair plate cushion block special |
| CN213952981U (en) * | 2020-10-29 | 2021-08-13 | 江西省新宇建设工程有限公司 | Steel pipe supporting base of stair platform |
| CN113550579A (en) * | 2021-06-22 | 2021-10-26 | 中国五冶集团有限公司 | Scaffold erecting method for cast-in-place stair platform |
| CN215253995U (en) * | 2021-04-22 | 2021-12-21 | 中国二冶集团有限公司 | Reinforcing bar protective layer thickness control cushion |
| CN215889359U (en) * | 2021-09-17 | 2022-02-22 | 上海宝冶集团有限公司 | Stair template branch base |
| KR20220025548A (en) * | 2020-08-24 | 2022-03-03 | 삼목에스폼 주식회사 | Formwork structure for preventing frame for step from being pushed during placing concrete |
| CN217581241U (en) * | 2022-03-23 | 2022-10-14 | 中国五冶集团有限公司 | Rectangular steel bar support frame |
-
2022
- 2022-03-23 CN CN202210288358.3A patent/CN114776003A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6354403B1 (en) * | 1998-05-21 | 2002-03-12 | Richard Truckner | Adjustable stair stringer and railing |
| KR20100055900A (en) * | 2008-11-18 | 2010-05-27 | 박덕용 | Construction frame for staircase tail of structure and constructing mathod using the same |
| KR20100076166A (en) * | 2008-12-26 | 2010-07-06 | 재단법인 포항산업과학연구원 | Variable support system of steel stair with preceding construction method type |
| CN203320968U (en) * | 2013-06-14 | 2013-12-04 | 北京城建二建设工程有限公司 | Rectangular hanging split heads support |
| CN203961130U (en) * | 2014-04-30 | 2014-11-26 | 浙江广厦建设职业技术学院 | A kind of stair rebar spacing and protective layer thickness control tool |
| CN105113786A (en) * | 2015-08-17 | 2015-12-02 | 刘海宁 | Pad block support system for supporting fixed adjustable cast-in-situ stair formwork |
| CN206917093U (en) * | 2017-07-17 | 2018-01-23 | 山西八建集团有限公司 | Cylindrical floor bar protective layer positioning fixture and the mould for making fixture |
| CN209308285U (en) * | 2018-12-14 | 2019-08-27 | 中铁七局集团第五工程有限公司 | Cast-in-situ stair plate cushion block special |
| KR20220025548A (en) * | 2020-08-24 | 2022-03-03 | 삼목에스폼 주식회사 | Formwork structure for preventing frame for step from being pushed during placing concrete |
| CN213952981U (en) * | 2020-10-29 | 2021-08-13 | 江西省新宇建设工程有限公司 | Steel pipe supporting base of stair platform |
| CN215253995U (en) * | 2021-04-22 | 2021-12-21 | 中国二冶集团有限公司 | Reinforcing bar protective layer thickness control cushion |
| CN113550579A (en) * | 2021-06-22 | 2021-10-26 | 中国五冶集团有限公司 | Scaffold erecting method for cast-in-place stair platform |
| CN215889359U (en) * | 2021-09-17 | 2022-02-22 | 上海宝冶集团有限公司 | Stair template branch base |
| CN217581241U (en) * | 2022-03-23 | 2022-10-14 | 中国五冶集团有限公司 | Rectangular steel bar support frame |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101903628B1 (en) | Precast Double Wall Structure with Enhanced Seismic Performance and Construction method thereof | |
| CN104594211B (en) | A kind of existing Hollow Slab Beam Bridge seat empty reinforcing construction and construction method | |
| CN210067002U (en) | Support-free assembled frame structure system | |
| CN217581241U (en) | Rectangular steel bar support frame | |
| CN111663659B (en) | Staggered floor synchronous construction method | |
| CN114482529A (en) | Back-jacking construction method for post-cast strip galvanized steel pipe support frame | |
| CN104594193A (en) | Upper structure of hollow board beam bridge and construction method thereof | |
| KR101889064B1 (en) | Construction method of a long span bridge main tower | |
| CN112900854B (en) | Template system for slope bottom plate construction and construction method | |
| CN114776003A (en) | Rectangular reinforcing steel bar support frame and method for controlling space between cast-in-place stair reinforcing steel bar meshes | |
| CN114382170B (en) | Construction method of upper prefabricated vertical component | |
| CN212388856U (en) | Cast-in-place clear water concrete batter post structure of prestressing force | |
| CN115741985A (en) | Production method of pier column containing shear keys | |
| CN206457971U (en) | A kind of prefabricated overlapped hollow plate of prestressing force | |
| KR20100057293A (en) | Method for the continuous construction concrete wall using slide form | |
| KR101616483B1 (en) | Construction Method Of Underground Parking Lot Using Precast Concrete Beam With Changing Cross Section | |
| JP7134133B2 (en) | Bridge railing construction method | |
| CN210562953U (en) | Prefabricated plate and coincide floor | |
| CN111424883A (en) | Prestressed cast-in-place clear water concrete inclined column structure and construction method thereof | |
| JP2001295404A (en) | Method for driving hollow pipe into reinforced permanent form | |
| KR102277159B1 (en) | A support unit for forming a slab of a reinforced concrete building structure | |
| JP3338240B2 (en) | Construction method for reinforced concrete structures | |
| CN220362751U (en) | Prefabricated template of pavement cover plate | |
| CN113323132B (en) | Large-volume concrete double-layer reinforcing steel bar support replacing, installing and constructing method | |
| CN212224198U (en) | Concrete prefabricated PC house unit |
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 |