CN106245852B - Abnormity concrete counterfort reinforcing bar localization method - Google Patents
Abnormity concrete counterfort reinforcing bar localization method Download PDFInfo
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- CN106245852B CN106245852B CN201610849088.3A CN201610849088A CN106245852B CN 106245852 B CN106245852 B CN 106245852B CN 201610849088 A CN201610849088 A CN 201610849088A CN 106245852 B CN106245852 B CN 106245852B
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- reinforcing bar
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
Abstract
The present invention relates to a kind of abnormity concrete counterfort reinforcing bar localization method, its step is：1) steel bar segmentation：Reinforcing bar is divided into three sections, first segment reinforcing bar to right cylinder and column top 5m, the second section reinforcing bar to 2 meters of concrete lower section for encircleing the 5th section of bifurcated, section three, reinforcing bar extremely encircles bifurcated top, and twice positioning support is set, first of support is saved at the top of reinforcing bar positioned at second, supports the construction of the second section concrete；Second support supports arch bifurcated the 3rd, the construction of the 4th section of concrete at the top of Section of three reinforcing bar；2) reinforcing bar moulding controls；3) positioning support：From two steel pipes as vertical bar, a horizontal steel pipe is placed on the downside of the reinforcing bar of bottom two, and is welded for every group of positioning support；Another transverse steel is placed on the downside of the reinforcing bar of two, top, and is welded, then connects horizontal steel pipe respectively with two longitudinal steel pipes, several rows of steel pipe is arranged according to bar spacing on longitudinal steel pipe, for supporting horizontal a lot of reinforcing bar.
Description
Technical field
The present invention relates to a kind of positioning of concrete counterfort reinforcing bar, especially a kind of abnormity concrete counterfort reinforcing bar positioning side
Method.
Background technology
Large-sized workshop, station and public venue use big roof system more according to architectural image, mixed on the downside of steel structural roof
Xtah Crude Clay structure includes roof system arch springing, concrete ring beam, Special-Shaped Column and batter post beam etc..Whole roof system is a unconventional property structure
Part, moulding are often special-shaped hyperboloid or warped surface, and the main function of the larger arch springing of the scale of construction and counterfort is the whole big roof system of support
System, arch springing batter post together form the plane outer support system to superstructure with lower rebar concrete, ensure that it is stable
Property and security.
Plane outer support system feature：
1) the reinforcing bar cage bar diameter of counterfort and ring beam is 40mm, and reinforcing bar follows the moulding of arch springing and ring beam constantly turning round
Song, the locus of every reinforcing bar are different from, and each reinforcing bar needs are separately machined according to locus, and itself load
Greatly, reinforced bar engineering positioning and support must set up independent support, therefore the positioning of whole complicated reinforced bar engineering, processing and
Support difficulty quite big.
2) engineering structure is complicated, and counterfort is distortion, deformed shape with cant beam component, while is connected respectively in front and rear domed end
Steel construction and concrete structure ring beam, it is to be ensured that the last accurate connection of construction；Concrete ring beam is also the 3 D stereo knot in space
Structure, and up to 28 meters or so of height, therefore, it is necessary to work out the locus of special monitoring scheme monitoring complex component.
3) every group of counterfort is not every independent, but is intersected by 2 arches according to certain angle and converged, and is then separated again,
The batter post support moulding of the intersection of front end 2 forms an arch springing.Counterfort is not only cambered in arch plane, and simultaneously to both sides
There is an angle of inclination, the measurement and positioning difficulty of reinforcing bar and template is very big.The reinforcing bar setting-out of beam column intersection is extremely complex, and installation is stranded
It is difficult.
4) inner side batter post is up big and down small gradual change inclined-plane post, and stirrup covers from the top down in conventional Joint Re-bar Construction
Mode can not construct.
The content of the invention
The present invention is to provide for a kind of abnormity concrete counterfort reinforcing bar localization method, for solving above-mentioned technical problem.
The technical scheme is that：A kind of abnormity concrete counterfort reinforcing bar localization method, its step are：
1) steel bar segmentation
Abnormity concrete counterfort is made up of two groups of arch bifurcated posts and column, above column have two groups of arch bifurcated posts, every group
Arch bifurcated post sequentially consists of the 5th section arch bifurcated second segment, the 3rd section of bifurcated of arch, the 4th section of bifurcated of arch, arch of bifurcated；Will
The position of reinforcing bar and moulding, wherein steel are controlled by some angle steel muscle of the arch springing of roof system counterfort, stirrup and positioning support
Muscle is divided into three sections, first segment reinforcing bar to right cylinder and column top 5m, the second section reinforcing bar to the concrete lower section 2 for encircleing the 5th section of bifurcated
Rice, Section of three reinforcing bar set twice positioning support to arch bifurcated top, and first of support is saved at the top of reinforcing bar positioned at second, branch
Support the construction of the second section concrete；Second support supports at the top of Section of three reinforcing bar and encircles bifurcated the 3rd, and the 4th
The construction of the concrete of section；
2) reinforcing bar moulding controls
First, the graphics of reinforcing bar is drawn, the three-dimensional dimension of the reinforcing bar of respective point position is taken out according to the division of construction section, is sent
It is processed to process unit is specified；After machining, welded according to three-dimensional dimension precise positioning reinforcement location, then with positioning support
Extremely, colligation and fixed stirrup, and control the moulding of whole roof system arch springing；Then, some angle steel muscle are laid according to bar spacing
Distribution bar；
3) positioning support：
From two steel pipes as longitudinal steel pipe, a horizontal steel pipe is placed under the reinforcing bar of bottom two for every group of positioning support
Side, and be welded；Another horizontal steel pipe is placed on the downside of the reinforcing bar of two, top, and is welded, then is connected respectively with two longitudinal steel pipes
Horizontal steel pipe is connect, several rows of steel pipe is arranged according to bar spacing on longitudinal steel pipe, for supporting horizontal a lot of reinforcing bar.
, it is necessary to carry out construction survey to roof system counterfort in above-mentioned steps, first, room is generated by BIM 3 d modeling softwares
The three-dimensional structure model of lid counterfort, the coordinate for each crucial four points in section for drawing the component is decomposed by software, will be each
The space coordinates of the point in section resolves into plane coordinates, and corresponding absolute altitude；Support of the steel platform as component is set up again
Platform and sterically defined operating platform, then, plane control stake double as high process control stake, and each control point height, which uses, to be closed
Route pilot measurement up to scratcs, and by distance assign matching somebody with somebody for mis-tie misclosure.
The beneficial effects of the invention are as follows：
The abnormity concrete counterfort reinforcing bar localization method of the present invention can have solution：
(1) reinforced bar engineering of counterfort and ring beam positioning and support must set up independent support, whole complicated reinforcing bar
Positioning, processing and the support sizable technical problem of difficulty of engineering.
(2) locus of special monitoring scheme monitoring complex component need not be worked out.
(3) beam column intersection reinforcing bar setting-out complexity, the difficult technical problem of installation can be solved.
(4) can angle inner side batter post of determining be up big and down small gradual change inclined-plane post, stirrup is from upper in conventional Joint Re-bar Construction
The technical problem that can not be constructed to the mode trapped.
Brief description of the drawings
Fig. 1 is that reinforcing bar positions supporting plane figure；
Fig. 2 is reinforcement positioning support figure；
Fig. 3 is along 1-1 sectional view in Fig. 2；
Fig. 4 is that reinforcing bar positions supporting plane layout drawing.
Embodiment
A kind of abnormity concrete counterfort reinforcing bar localization method, its step are：
1) steel bar segmentation
As shown in figure 1, abnormity concrete counterfort is made up of face arch bifurcated post 1-1, rear arch bifurcated post 1-2, column 1-3.It is vertical
There is face arch bifurcated post 1-1, rear arch bifurcated post 1-2 above post 1-3.Face arch bifurcated post 1-1 sequentially consists of face arch bifurcated
The 5th section of second segment 2-A, the 3rd section of 3-A of face arch bifurcated, the 4-A of face arch bifurcated section the 4th, face arch bifurcated 5-A.Rear arch bifurcated post 1-2
Sequentially consist of rear arch bifurcated second segment 2-B, the 3rd section of 3-B of rear arch bifurcated, rear arch bifurcated the 4th section of 4-B, rear arch bifurcated
5th section of 5-B.
The reinforcing bar of counterfort is all irregular distortion reinforcing bar, so four angle steel for passing through arch springing in addition to column and batter post
Muscle, stirrup and positioning are supported to control the position of reinforcing bar and moulding.Reinforcing bar is divided into three sections, on first segment reinforcing bar 10 to column 1-3
Remove 5m, 2 meters or so of the concrete lower section of the second section reinforcing bar 11 to the 5th section of bifurcated of arch, Section of three reinforcing bar to top.If twice are determined
Position support, first of support 20 support the construction of the concrete of arch bifurcated second segment at the top of the second section reinforcing bar 11；The
Two supports 21 (take 1-1 sections) at the top of Section of three reinforcing bar on 5-A section concretes, support arch bifurcated the 3rd, the
Four sections of mixed solidifying native constructions.Steel bar segmentation and positioning supporting plane figure are as shown in Figure 1.
2) reinforcing bar moulding controls
By taking four angle steel muscle of face arch as an example, 20mm protective layer thickness is removed, drawing the graphics of four reinforcing bars, (reinforcing bar is straight
Footpath 40mm), the three-dimensional dimension of the reinforcing bar of respective point position is taken out according to the division of construction section, specified process unit is delivered to and is added
Work；After machining, it is welded according to three-dimensional dimension precise positioning reinforcement location, then with positioning support, colligation and fixed stirrup, control
Make the moulding of whole roof system arch springing.Directly distribution steel is laid after controlling moulding according to bar spacing in four angle steel muscle again
Muscle.Rear arch and the same face arch of coupling beam reinforcing bar value.
3) positioning support：
Every group of positioning support is placed on bottom two from two 48X3mm steel pipes as vertical bar, a horizontal steel pipe
On the downside of reinforcing bar, after confirmation, it is welded；Another transverse steel is placed on the downside of the reinforcing bar of two, top, after confirmation, weldering
Extremely, then with two longitudinal steel pipes horizontal steel pipe is connected respectively, several rows of steel pipe is arranged according to bar spacing on longitudinal steel pipe, use
In the horizontal a lot of reinforcing bar of support.
Whole arch springing construction deployment is as follows：Basis → first segment reinforcing bar colligation → first paragraph concrete construction → sets up first
→ colligation second saves reinforcing bar and → sets up first of reinforced bar support → second segment concrete construction → and set up the second layer steel layer steel platform
Platform → Section of three reinforcing bar of colligation → is set up the section concrete of second reinforced bar support → first of dismounting reinforced bar support → the 3rd and applied
The concrete construction of work → set up third layer steel platform → four concrete constructions → dismounting second reinforced bar support → the 5th.It is fixed
Setting up and removing for position support is constructed according to the flow in construction deployment
Support Position is positioned to determine：So that face arch second saves reinforced bar support as an example, 1- is taken at reinforced bar support in BIM models
1 section, obtains profile, can take out four pads A, B, C, D of reinforcing bar and horizontal cross bar Z coordinate；Further according to perspective
Plan, can take out X, Y-coordinate, determine the three-dimensional coordinate of four pads of reinforcing bar and horizon bar, such as Fig. 2, shown in 3：
Reinforcing bar positioning supporting row frame is set up：So that face arch second saves Steel bar rack as an example：Between respectively being set up in Steel bar rack both sides
The twice steel pipe of spacing 800 is also set up away from 800 twice steel pipe, while in the side that cuts section bar, is collectively forming reinforcing bar positioning support row
Frame system, as shown in Figure 4.
4) construction survey
Roof system counterfort belongs to three dimensions stereoscopic member, and the positioning of component has very big difficulty.Pass through BIM three-dimensional modelings
Software Create three-dimensional structure model, can be decomposed by software each crucial four points in section for drawing the component coordinate (x,
Y, z), the space coordinates of the point in each section is resolved into plane coordinates (x, y), and corresponding absolute altitude H.
Because the pitch of arch is higher after face arch, there is very big difficulty in support and setting-out, set up branch of the steel platform as component
Support platform and sterically defined operating platform.
High process control：Plane control stake doubles as high process control stake, and vertical control point Fixed Initial Point is provided simultaneously using owner
The bench mark for agreeing to use through management inspection.Each control point height uses closed leveling line pilot measurement, and is closed by distance
Matching somebody with somebody for difference is assigned.High process control is with reference to fourth-order leveling.
Claims (2)
1. a kind of abnormity concrete counterfort reinforcing bar localization method, it is characterised in that its step is：
1) steel bar segmentation
Abnormity concrete counterfort is made up of two groups of arch bifurcated posts and column, has two groups of arch bifurcated posts, every group of arch point above column
Crutch sequentially consists of the 5th section arch bifurcated second segment, the 3rd section of bifurcated of arch, the 4th section of bifurcated of arch, arch of bifurcated；It will pass through
Some angle steel muscle, stirrup and the positioning of the arch springing of roof system counterfort are supported to control the position of reinforcing bar and moulding, wherein reinforcing bar point
For three sections, first segment reinforcing bar to column top 5m, the second section reinforcing bar to 2 meters, Section three of concrete lower section for encircleing the 5th section of bifurcated
Reinforcing bar sets twice positioning support to arch bifurcated top, and first of support is saved at the top of reinforcing bar positioned at second, supports second segment
The construction of concrete；Second support supports arch bifurcated the 3rd, the 4th section of concrete at the top of Section of three reinforcing bar
Construction；
2) reinforcing bar moulding controls
First, the graphics of reinforcing bar is drawn, the three-dimensional dimension of the reinforcing bar of respective point position is taken out according to the division of construction section, delivers to finger
Determine process unit to be processed；After machining, it is welded according to three-dimensional dimension precise positioning reinforcement location, then with positioning support,
Colligation and fixed stirrup, and control the moulding of whole roof system arch springing；Then, some angle steel muscle are laid according to bar spacing and are distributed
Reinforcing bar；
3) positioning support：
From two steel pipes as longitudinal steel pipe, a horizontal steel pipe is placed on the downside of the reinforcing bar of bottom two for every group of positioning support,
And it is welded；Another horizontal steel pipe is placed on the downside of the reinforcing bar of two, top, and is welded, then connects horizontal stroke respectively with two longitudinal steel pipes
To steel pipe, several rows of steel pipe is arranged according to bar spacing on longitudinal steel pipe, for supporting horizontal a lot of reinforcing bar.
2. abnormity concrete counterfort reinforcing bar localization method according to claim 1, it is characterised in that：In above-mentioned steps, need
Construction survey is carried out to roof system counterfort, first, the three-dimensional structure model of roof system counterfort be generated by BIM 3 d modeling softwares,
The coordinate for each crucial four points in section for drawing the component is decomposed by software, the space coordinates of the point in each section is decomposed
Into plane coordinates, and corresponding absolute altitude；It is flat as the support platform of component and sterically defined operation that steel platform is set up again
Platform, then, plane control stake double as high process control stake, each to control point height use closed leveling line pilot measurement, and press away from
Assigned from matching somebody with somebody for mis-tie misclosure is carried out.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107122539B (en) * | 2017-04-24 | 2019-09-03 | 清华大学建筑设计研究院有限公司 | A kind of design method based on continuous deflecting armored concrete column structure system |
| CN108427783A (en) * | 2017-08-12 | 2018-08-21 | 中民筑友科技投资有限公司 | A kind of reinforcing bar bundle design management method and device based on BIM |
| CN108759775A (en) * | 2018-03-14 | 2018-11-06 | 江苏恒久钢构有限公司 | A kind of method for building up of vertical control network |
| CN110835976A (en) * | 2019-12-09 | 2020-02-25 | 上海宝冶集团有限公司 | Space positioning construction method for V-shaped stiff column |
| CN111335546B (en) * | 2020-03-11 | 2021-06-11 | 中国建筑第八工程局有限公司 | Construction method for binding special-shaped variable-section cylindrical steel bars |
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| CN204492166U (en) * | 2015-03-20 | 2015-07-22 | 江苏省华建建设股份有限公司 | A kind of wavy roofing counterfort support shuttering |
| CN105178510A (en) * | 2015-09-22 | 2015-12-23 | 中国建筑第八工程局有限公司 | Huge steel reinforced concrete combined column structure and construction method thereof |
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