CN109915175A - A kind of grid type reinforcing bar grid steelframe - Google Patents
A kind of grid type reinforcing bar grid steelframe Download PDFInfo
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- CN109915175A CN109915175A CN201910341677.4A CN201910341677A CN109915175A CN 109915175 A CN109915175 A CN 109915175A CN 201910341677 A CN201910341677 A CN 201910341677A CN 109915175 A CN109915175 A CN 109915175A
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- grid
- reinforcement
- steel frame
- steel
- reinforcing bar
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 44
- 239000010959 steel Substances 0.000 claims abstract description 44
- 230000002787 reinforcement Effects 0.000 claims abstract description 40
- 238000003466 welding Methods 0.000 claims abstract description 6
- 239000002356 single layer Substances 0.000 claims description 3
- MFYFNUKUXIRYFV-JSGCOSHPSA-N Polygonone Natural products O=CC=1C(=O)C[C@H]2C(C)(C)CCC[C@@]2(C)C=1 MFYFNUKUXIRYFV-JSGCOSHPSA-N 0.000 claims 1
- 238000006467 substitution reaction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 239000011435 rock Substances 0.000 description 7
- 239000011378 shotcrete Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 239000007921 spray Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004567 concrete Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
Landscapes
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses a kind of grid type grid steel frame, by reinforcement welding at latticed, end and the angle steel of two sides weld together, and form grid type grid steel frame, between the grid type grid steel frame, are interconnected respective angle steel by bolt.Above-mentioned reinforcing bar is divided into main reinforcement and assistant reinforcement.One of polygon, circle, ellipse or and combined grid can be used in reinforcing bar.The present invention can solve the technical problems such as fixed difficult, activity duration length existing for traditional support lining device.
Description
Technical field
The present invention relates to a kind of improved technologies of the grid type reinforcing bar grid steelframe of Tunnel Engineering.Especially it is suitable for spray anchor
Lining cutting stiffness and strength require less high situation, such as II, III grade of country rock shotcrete bolt lining and preliminary bracing reinforcement.
Background technique
Shotcrete bolt lining is the common support lining form of Tunnel Engineering, generally according to country rock situation and excavated section to spray anchor
Lining cutting stiffness and strength require to use pneumatically placed concrete assembled bolt, steel mesh, steelframe supporting, and the sequence of operation is construction after just spray
Anchor pole hangs steel mesh, then erects steelframe shotcrete support.Steelframe and steel mesh separate, and steelframe supporting is with reinforcing bar grid steelframe
It is most widely used, reinforcing bar grid steelframe is welded by main reinforcement, assistant reinforcement and forms three-dimensional framework, and cross sectional shape has triangle, trapezoidal, square
Shape；Steel mesh usesReinforcing bar fragment be welded into latticed, overlap joint is hung, and is fixed on termination point of anchor rod.
There are the following shortcomings for the support form: it is larger by main reinforcement, assistant reinforcement welded reinforcement grid steel frame relative rigidity, spray anchor
Supporting is relatively thick；Steel mesh is thin scrappy, fixed to rely on anchor pole；Steel mesh and the closely connected effect of scar are poor；Just spray thinner thickness, anchor
Bar construction disturbance country rock, is easy to collapse；Complex procedures, the activity duration is long, is unfavorable for country rock and cavern stablizes.
Open CN1306150A steel bar mesh shell bracket and wire-shell bolting shotcrete supporting and CN103470273A mine working three-dimensional lattice
Structure reinforced concrete support is three-dimensional reinforcing bar space lattice, and processing and fabricating is difficult compared with the single layer for after present invention expansion being plane
Degree is big, and jetting thickness is big；Connecting plate of the present invention uses angle steel, and angle steel is on one side and reinforcement welding, another side set bolt hole, is convenient for
Implement.
Summary of the invention
The present invention provides a kind of grid type grid steel frame, with solve existing for traditional support lining device it is fixed it is difficult,
The technical problems such as activity duration length.
In order to achieve the above-mentioned object of the invention, the technical solution adopted in the present invention is as follows:
A kind of grid type grid steel frame, by reinforcement welding at latticed, end and the angle steel of two sides weld together, and are formed
Monolayer net format grid steel frame between the grid type grid steel frame, is interconnected respective angle steel by bolt；The steel
Muscle includes main reinforcement and two kinds of assistant reinforcement, and main reinforcement and assistant reinforcement are to be alternately distributed or assistant reinforcement at grid main reinforcement is border structure.
A kind of grid type grid steel frame, above-mentioned main reinforcement can be substituted with steel pipe or square steel.
A kind of grid type grid steel frame, above-mentioned mesh shape include one of polygon, circle, ellipse or
And combination.
Advantages of the present invention is with effect: combining steelframe and mesh sheet together, is conducive to early formation supporting construction, plays country rock
Self-bearing ability, and construction is simple, conveniently.Especially it is suitable for requiring shotcrete bolt lining stiffness and strength less high situation, such as III grade
Country rock and preliminary bracing reinforcement.
Detailed description of the invention
Fig. 1 is the schematic diagram of one of constructive embodiment of the invention.
Fig. 2 is two schematic diagram of constructive embodiment of the invention.
Fig. 3 is three schematic diagram of constructive embodiment of the invention.
Fig. 4 is steel angle structure schematic diagram of the invention.
It is numbered in figure: 1. angle steel；2. main reinforcement；3. assistant reinforcement；4. bolt hole；5. weld seam.
Specific embodiment
Structure of the invention is shown in Figure 1.By reinforcement welding at latticed, the end welding of angle steel 1, formation grid type
Grid steel frame is connected between steelframe by bolt hole 4.Latticed reinforcing bar is alternately distributed and is formed by main reinforcement 2 and assistant reinforcement 3.
Shown in Figure 2, latticed reinforcing bar is welded by the main reinforcement of polygon assistant reinforcement and both sides.
Shown in Figure 3, latticed reinforcing bar is welded by polygon assistant reinforcement and latticed main reinforcement.
A kind of grid type grid steel frame, main reinforcement is thicker than assistant reinforcement, and above-mentioned main reinforcement can be substituted with steel pipe or square steel.
A kind of grid type grid steel frame, above-mentioned mesh shape include one of polygon, circle, ellipse or
And combination.
Together by steelframe and mesh sheet combination, overcome the shortcomings of fixed difficult, the activity duration length of steel mesh, and be conducive to early shape
At supporting construction, self is played, rapid construction is conducive to.Especially required less when to shotcrete bolt lining stiffness and strength
High situation, such as II, III grade of country rock shotcrete bolt lining and preliminary bracing reinforcement.
Claims (3)
1. a kind of grid type grid steel frame, which is characterized in that by reinforcement welding at latticed, end and the angle steel of two sides are welded on
Together, monolayer net format grid steel frame is formed, between the grid type grid steel frame, respective angle steel is mutually connected by bolt
It connects；The reinforcing bar includes main reinforcement and two kinds of assistant reinforcement, and main reinforcement and assistant reinforcement are to be alternately distributed or assistant reinforcement at grid main reinforcement is border structure.
2. a kind of grid type grid steel frame according to claim 1, which is characterized in that above-mentioned main reinforcement can use steel pipe or square steel
Substitution.
3. a kind of grid type grid steel frame according to claim 1, which is characterized in that above-mentioned mesh shape includes polygon
One of shape, circle, ellipse or and combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910341677.4A CN109915175A (en) | 2019-04-26 | 2019-04-26 | A kind of grid type reinforcing bar grid steelframe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910341677.4A CN109915175A (en) | 2019-04-26 | 2019-04-26 | A kind of grid type reinforcing bar grid steelframe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109915175A true CN109915175A (en) | 2019-06-21 |
Family
ID=66978628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910341677.4A Pending CN109915175A (en) | 2019-04-26 | 2019-04-26 | A kind of grid type reinforcing bar grid steelframe |
Country Status (1)
| Country | Link |
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| CN (1) | CN109915175A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0740846U (en) * | 1993-12-27 | 1995-07-21 | 住倉鋼材株式会社 | Self-supporting rebar wire mesh |
| JP2005180100A (en) * | 2003-12-22 | 2005-07-07 | Takenaka Komuten Co Ltd | Method of reinforcing joint of column and beam for shearing and reinforced joint structure for shearing |
| US20110030288A1 (en) * | 2009-08-10 | 2011-02-10 | Steven Traulsen | Prefabricated reinforced concrete structural support panel system for multi-story buildings |
| CN102587936A (en) * | 2012-04-01 | 2012-07-18 | 中国矿业大学 | Fully-enclosed integral assembly grid concrete support method |
| CN203685217U (en) * | 2013-12-28 | 2014-07-02 | 中铁十二局集团第二工程有限公司 | Initial-stage supporting steel frame of large-section weak-surrounding-rock tunnel |
| CN108397231A (en) * | 2018-04-25 | 2018-08-14 | 山东黄金归来庄矿业有限公司 | A kind of V-type drainage wall for mine working filling |
| CN209925005U (en) * | 2019-04-26 | 2020-01-10 | 北京市市政工程设计研究总院有限公司 | Grid type steel bar grating steel frame |
-
2019
- 2019-04-26 CN CN201910341677.4A patent/CN109915175A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0740846U (en) * | 1993-12-27 | 1995-07-21 | 住倉鋼材株式会社 | Self-supporting rebar wire mesh |
| JP2005180100A (en) * | 2003-12-22 | 2005-07-07 | Takenaka Komuten Co Ltd | Method of reinforcing joint of column and beam for shearing and reinforced joint structure for shearing |
| US20110030288A1 (en) * | 2009-08-10 | 2011-02-10 | Steven Traulsen | Prefabricated reinforced concrete structural support panel system for multi-story buildings |
| CN102587936A (en) * | 2012-04-01 | 2012-07-18 | 中国矿业大学 | Fully-enclosed integral assembly grid concrete support method |
| CN203685217U (en) * | 2013-12-28 | 2014-07-02 | 中铁十二局集团第二工程有限公司 | Initial-stage supporting steel frame of large-section weak-surrounding-rock tunnel |
| CN108397231A (en) * | 2018-04-25 | 2018-08-14 | 山东黄金归来庄矿业有限公司 | A kind of V-type drainage wall for mine working filling |
| CN209925005U (en) * | 2019-04-26 | 2020-01-10 | 北京市市政工程设计研究总院有限公司 | Grid type steel bar grating steel frame |
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