CN113529774B - Construction method for mounting large foundation steel bars - Google Patents
Construction method for mounting large foundation steel bars Download PDFInfo
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- CN113529774B CN113529774B CN202110812004.XA CN202110812004A CN113529774B CN 113529774 B CN113529774 B CN 113529774B CN 202110812004 A CN202110812004 A CN 202110812004A CN 113529774 B CN113529774 B CN 113529774B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- 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
- E04G21/12—Mounting of reinforcing inserts; Prestressing
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
Abstract
The invention discloses a construction method, particularly discloses a construction method for mounting large foundation reinforcing steel bars, and belongs to the technical field of construction processes of building engineering structures. The construction method for installing the large foundation steel bars is convenient to construct and operate, and can effectively guarantee construction quality. The construction method at least comprises the steps of erecting a construction operation platform on the bottom layer steel bars of the foundation with qualified installation, laying surface layer horizontal steel bars by taking the construction operation platform as the foundation, welding column inserted bars and shear wall inserted bars on the surface layer horizontal steel bars with qualified installation, and pouring concrete, wherein rib arrangement grid lines for installing the surface layer steel bars are divided on the construction operation platform according to design requirements before the surface layer horizontal steel bars are arranged, and then the corresponding surface layer horizontal steel bars are installed by the rib arrangement grid lines.
Description
Technical Field
The invention relates to a construction method, in particular to a construction method for mounting large foundation reinforcing steel bars, and belongs to the technical field of construction processes of building engineering structures.
Background
The large-scale foundation steel bar installation surface layer rib usually adopts a large amount of angle steels or steel bar split heads as supports, a large amount of steel is buried in concrete, and the supports are easy to deform in construction operation, so that the engineering quality problem is easy to cause; such construction structures have plagued construction units.
The utility model discloses a utility model patent of bulletin number is CN212443856U a ladder muscle weldment work platform, the on-line screen storage device comprises a base, the base upper end is equipped with table surface, vertically be equipped with the sliding tray of symmetry on the table surface, be equipped with the steel bay in the sliding tray, the steel bay passes through the sliding rod connection in two sliding trays of symmetry, be equipped with vertical scale and numerical value on the table surface, one side of table surface is equipped with the stiff end, and the opposite side is equipped with the transverse sliding groove, be equipped with the width control strip on the transverse sliding groove, the width control strip passes through bolted connection and is in on the transverse sliding groove, one side of transverse sliding groove still is equipped with horizontal scale and numerical value. Adopt the utility model discloses make more standardization, the orderliness of weldment work of ladder muscle, effectively ensured the off-the-shelf precision, greatly improved work efficiency, practice thrift manpower, material resources, improved economic benefits, simple structure, easy dismounting, safe and reliable is fit for popularizing and applying. However, the ladder reinforcement welding workbench consumes too much steel in the installation and construction of large-scale foundation steel bars, and the workbench is inconvenient to dismantle after the foundation steel bars are arranged.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the construction method for installing the large foundation steel bars is convenient to construct and operate, and can effectively guarantee construction quality.
The technical scheme adopted for solving the technical problems is as follows: a construction method for installing the reinforcing bars of large foundation includes such steps as erecting a construction platform on the qualified reinforcing bars of foundation bottom, laying horizontal reinforcing bars on the surface layer, welding the column and shear wall reinforcing bars on the horizontal reinforcing bars, and pouring concrete,
the method comprises the steps of dividing rib arrangement grid lines for installing the surface layer steel bars on a construction operation platform according to design requirements before arranging the surface layer horizontal steel bars, and then installing the corresponding surface layer horizontal steel bars through the rib arrangement grid lines.
Further, before the construction operation platform is built, a cushion layer is laid on the steel bars of the foundation bottom layer, and then the construction operation platform is built on the cushion layer.
The preferable mode of the above scheme is that the construction operation platform comprises steel pipe columns and horizontal steel pipes, and the horizontal steel pipes are arranged on the cushion layer in a truss structure through the steel pipe columns.
Further, a construction operation platform is erected, and meanwhile shear wall dowel embedded parts are arranged on the cushion layer.
The preferred mode of above-mentioned scheme is, arrange at surface course horizontal reinforcement, post dowel and shear force wall dowel and accomplish the back, detect the position of arranging of surface course horizontal reinforcement earlier at least before carrying out bulky concrete pouring, when surface course horizontal reinforcement appears the local collapse, can adopt support piece top to the design elevation of height-adjustable formula, then support with the angle steel stand and remove support piece of height-adjustable formula after fixed and carry out position adjustment and restoration.
Furthermore, before the large-volume concrete is poured, the construction operation platform is dismantled, and then the large-volume concrete is poured.
The preferable mode of the scheme is that before the pouring of the mass concrete, the pouring template is arranged on the cushion layer after the construction operation platform is dismantled.
Further, the thickness of the large-volume concrete is not less than 1000mm.
Furthermore, the joint of the upper part of the column joint bar and the horizontal steel bar of the surface layer is welded, and the embedded steel bar of the lower pile is welded; the joint of the upper part of the shear wall joint bar and the horizontal steel bar of the surface course is welded, and the lower part of the shear wall joint bar is welded with the embedded part of the shear wall joint bar in the cushion course.
The invention has the beneficial effects that: the construction method provided by the application is based on existing foundation bottom layer steel bars qualified in installation, a construction operation platform is erected on the foundation bottom layer steel bars, then surface layer horizontal steel bars are laid on the construction operation platform, column inserting bars, shear wall inserting bars and concrete pouring are welded on the surface layer horizontal steel bars qualified in laying, large foundation steel bar installation is completed, rib arrangement grid lines for surface layer steel bar installation are divided on the construction operation platform according to design requirements before the surface layer horizontal steel bars are arranged, and then installation of corresponding surface layer horizontal steel bars is carried out through the rib arrangement grid lines, so that installation quality is improved. Therefore, the construction method of the application is based on the existing foundation bottom layer steel bars which are installed qualified, then the construction operation platform is erected on the foundation bottom layer steel bars, and finally the surface layer horizontal steel bars are laid on the basis of the construction operation platform, so that the problem that a large amount of steel materials are buried in concrete by using angle steel or a steel bar split heads as supports in the prior art is solved, the production cost is effectively reduced, grid lines are divided on the construction operation platform by using the construction operation platform, and then the surface layer steel bars are arranged on the basis of the grid lines, so that the arrangement quality can be effectively improved and the arrangement operation is facilitated compared with the construction method in the prior art.
Drawings
FIG. 1 is a schematic structural diagram of a construction operation platform involved in the construction method for installing large foundation steel bars according to the present invention;
FIG. 2 is a schematic structural view of a surface layer steel bar laid by the construction method of the present invention.
Labeled in the figure as: foundation bottom layer reinforcing steel bar 1, construction operation platform 2, surface course horizontal reinforcement 3, post dowel 4, shear wall dowel 5, bed course 6, steel pipe stand 7, horizontal steel pipe 8, shear wall dowel built-in fitting 9, angle steel stand 10.
Detailed Description
As shown in fig. 1 and 2, the construction method for installing the large-sized foundation steel bar is convenient to construct and operate, and can effectively ensure the construction quality. The construction method at least comprises the steps of erecting a construction operation platform 2 on the bottom layer steel bars 1 of the qualified foundation, laying surface layer horizontal steel bars 3 by taking the construction operation platform 2 as the foundation, welding column joint bars 4 and shear wall joint bars 5 on the surface layer horizontal steel bars 3 of the qualified foundation, and pouring concrete,
the reinforcement distribution grid lines for installing the surface layer reinforcements are divided on the construction operation platform 2 according to design requirements before the surface layer horizontal reinforcements 3 are arranged, and then the corresponding surface layer horizontal reinforcements 3 are installed through the reinforcement distribution grid lines. The construction method provided by the application is based on existing foundation bottom layer steel bars qualified in installation, a construction operation platform is erected on the foundation bottom layer steel bars, then surface layer horizontal steel bars are laid on the construction operation platform, column inserting bars, shear wall inserting bars and concrete pouring are welded on the surface layer horizontal steel bars qualified in laying, large foundation steel bar installation is completed, rib arrangement grid lines for surface layer steel bar installation are divided on the construction operation platform according to design requirements before the surface layer horizontal steel bars are arranged, and then installation of corresponding surface layer horizontal steel bars is carried out through the rib arrangement grid lines, so that installation quality is improved. Therefore, the construction method of the application is based on the existing foundation bottom layer steel bars which are installed qualified, then the construction operation platform is erected on the foundation bottom layer steel bars, and finally the horizontal steel bars of the surface layer are laid on the basis of the construction operation platform, so that the problem that in the prior art, a large amount of steel materials are buried in concrete by using angle steel or steel bar split heads as supports is solved, the production cost is effectively reduced, the construction operation platform is used for dividing grid lines on the construction operation platform, then the surface layer steel bars are arranged on the basis of the grid lines, and compared with the construction method in the prior art, the operation can effectively improve the laying quality and is convenient to lay.
In the above embodiment, in order to improve the operability of the construction method of the present application and combine with a subsequent casting formwork device to improve the comprehensive efficiency of construction, in the present application, before the construction operation platform 2 is set up, the cushion layer 6 is laid on the foundation bottom layer steel bar 1, and the construction operation platform 2 is set up on the cushion layer 6. At this time, the construction operation platform 2 comprises a steel pipe upright post 7 and a horizontal steel pipe 8, and the horizontal steel pipe 8 is arranged on the cushion layer 6 in a truss structure through the steel pipe upright post 7. And the shear wall dowel bar embedded part 9 is arranged on the cushion layer 6 while the construction operation platform 2 is erected. Then, according to needs, after the surface layer horizontal steel bars 3, the column joint bars 4 and the shear wall joint bars 5 are arranged, the arrangement positions of the surface layer horizontal steel bars 3 are at least detected before large-volume concrete pouring is carried out, when the surface layer horizontal steel bars 3 are locally collapsed, the height-adjustable supporting pieces can be used for jacking to the designed elevation, and then the height-adjustable supporting pieces are removed for position adjustment and repair after the angle steel upright columns 10 are used for supporting and fixing.
Of course, in order to avoid the construction operation platform being buried in the concrete, before the large-volume concrete is poured, the construction operation platform is firstly dismantled, and then the large-volume concrete is poured. Naturally, before the large-volume concrete is poured, a pouring template is arranged on the cushion layer in need after the construction operation platform 2 is dismantled, the joint of the upper part of the column dowel 4 and the surface layer horizontal steel bar 3 is welded, and the lower pile embedded steel bar is welded; the joint of the upper part of the shear wall joint bar 5 and the surface layer horizontal steel bar 3 is welded, and the lower part of the shear wall joint bar is welded with the shear wall joint bar embedded part 9 in the cushion layer.
According to the concrete conditions of the site, the construction method is more suitable for the laying construction of the concrete foundation steel with the thickness of the large-volume concrete not less than 1000mm.
In summary, the construction method provided by the application further has the following beneficial effects: in the installation and construction of large-scale foundation reinforcing steel bars, a large number of section steel support systems are submerged in conventional concrete, and the steel tube support has the advantages of low installation cost, large support force of the steel tube support and easiness in height adjustment. The construction operation is very convenient, the construction efficiency can be obviously improved, and the construction safety is effectively ensured.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The technical problem that this application will solve is: in view of the above situation, it is an object of the present invention to provide a method for installing large-scale foundation reinforcing steel bars, which has low installation cost, large supporting force and easy adjustment.
In order to solve the technical problem, the technical scheme adopted by the application is as follows:
the method for installing the large-scale foundation steel bar comprises the following steps:
after the bottom layer steel bars of the foundation are installed, the steel pipes are used for positioning, and steel pipe upright columns and horizontal steel pipes are erected in the foundation to form a steel pipe support operation platform.
And dividing reinforcement distribution grid lines for installing surface layer reinforcements on the horizontal steel pipe according to the reinforcement intervals designed by the drawing, and installing the reinforcements.
Furthermore, according to the elevation of each part designed by the drawing, the elevation of the surface layer steel bar is controlled by adjusting the horizontal steel pipe of the steel pipe support.
Mounting column joint bars according to a positioning line of the structural design, welding the upper parts of the joints of the column joint bars and the surface layer steel bars, and welding the lower parts of the column joint bars and the pile embedded steel bars; the joint of the upper part of the shear wall joint bar and the surface layer steel bar is welded, and the lower part of the shear wall joint bar is welded with the embedded part in the cushion layer. And (4) additionally installing angle steel upright supports in the areas without the joint bars in the local part of the foundation steel bar engineering.
And (4) dismantling the steel pipe upright post and the horizontal steel pipe.
Furthermore, during the reinforcing bar self-checking, if the surface course reinforcing bar net piece part has the collapse, can adopt height-adjustable support piece top to design elevation, then with angle steel stand support fixed back, demolish height-adjustable support piece.
And (4) checking and accepting the large-scale foundation steel bars and pouring concrete until the large-size foundation concrete is poured.
The invention is suitable for the installation and construction of the steel bars of large-scale foundations (the concrete thickness is more than 1.0 meter).
Claims (5)
1. A construction method for installing large foundation steel bars is characterized in that: the construction method at least comprises the steps of erecting a construction operation platform (2) on the bottom layer steel bars (1) of the foundation with qualified installation, laying surface layer horizontal steel bars (3) by taking the construction operation platform (2) as the foundation, welding column inserting ribs (4) and shear wall inserting ribs (5) on the surface layer horizontal steel bars (3) with qualified arrangement and pouring concrete,
wherein, the reinforcement distribution grid lines for installing the surface layer reinforcements are divided on the construction operating platform (2) according to the design requirements before the surface layer horizontal reinforcements (3) are arranged, then the corresponding surface layer horizontal reinforcements (3) are installed by the reinforcement distribution grid lines,
after the surface layer horizontal steel bars (3), the column joint bars (4) and the shear wall joint bars (5) are arranged, at least the arrangement positions of the surface layer horizontal steel bars (3) are detected before large-volume concrete pouring, when the surface layer horizontal steel bars (3) are locally collapsed, the height-adjustable supporting pieces can be adopted to jack to the designed elevation, then the height-adjustable supporting pieces are removed for position adjustment and repair after being supported and fixed by the angle steel upright posts (10),
before the construction operation platform (2) is set up, firstly, a cushion layer (6) is laid on the base bottom layer steel bar (1), then, the construction operation platform (2) is set up on the cushion layer (6),
a shear wall dowel bar embedded part (9) is arranged on the cushion layer (6) while a construction operation platform (2) is erected,
before the large-volume concrete is poured, the construction operation platform is dismantled, and then the large-volume concrete is poured.
2. The construction method for large foundation rebar installation according to claim 1, wherein: the construction operation platform (2) comprises steel pipe columns (7) and horizontal steel pipes (8), wherein the horizontal steel pipes (8) are arranged on the cushion layer (6) in a truss structure through the steel pipe columns (7).
3. The construction method for large foundation reinforcement installation according to claim 1 or 2, wherein: before the pouring of the mass concrete, a pouring template is arranged on the cushion layer after the construction operation platform (2) is removed.
4. The construction method for large foundation reinforcement installation according to claim 3, wherein: the thickness of the large-volume concrete is not less than 1000mm.
5. The construction method for large foundation reinforcement installation according to claim 4, wherein: the joint of the upper part of the column dowel bar (4) and the surface layer horizontal steel bar (3) is welded, and the lower part of the column dowel bar is welded with the pile embedded steel bar; the joint of the upper part of the shear wall joint bar (5) and the surface layer horizontal steel bar (3) is welded, and the lower part of the shear wall joint bar is welded with the shear wall joint bar embedded part (9) in the cushion layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110812004.XA CN113529774B (en) | 2021-07-19 | 2021-07-19 | Construction method for mounting large foundation steel bars |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110812004.XA CN113529774B (en) | 2021-07-19 | 2021-07-19 | Construction method for mounting large foundation steel bars |
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| CN113529774A CN113529774A (en) | 2021-10-22 |
| CN113529774B true CN113529774B (en) | 2023-02-28 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014139252A1 (en) * | 2013-03-15 | 2014-09-18 | 中国十七冶集团有限公司 | Method for constructing large raft foundation in high-temperature environment |
| CN109049323A (en) * | 2018-09-04 | 2018-12-21 | 广东蕉岭建筑工程集团有限公司 | Plate bar frame production method |
| CN111501833A (en) * | 2020-03-30 | 2020-08-07 | 中国建筑第八工程局有限公司 | Steel bar structure of thick raft and reverse construction method thereof |
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2021
- 2021-07-19 CN CN202110812004.XA patent/CN113529774B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014139252A1 (en) * | 2013-03-15 | 2014-09-18 | 中国十七冶集团有限公司 | Method for constructing large raft foundation in high-temperature environment |
| CN109049323A (en) * | 2018-09-04 | 2018-12-21 | 广东蕉岭建筑工程集团有限公司 | Plate bar frame production method |
| CN111501833A (en) * | 2020-03-30 | 2020-08-07 | 中国建筑第八工程局有限公司 | Steel bar structure of thick raft and reverse construction method thereof |
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