CN206233626U - Perforation rib pull bar constraint rectangular steel pipe outsourcing self-compacting concrete reinforced column - Google Patents
Perforation rib pull bar constraint rectangular steel pipe outsourcing self-compacting concrete reinforced column Download PDFInfo
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- CN206233626U CN206233626U CN201620363920.4U CN201620363920U CN206233626U CN 206233626 U CN206233626 U CN 206233626U CN 201620363920 U CN201620363920 U CN 201620363920U CN 206233626 U CN206233626 U CN 206233626U
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- steel pipe
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Abstract
The utility model discloses one kind perforation rib pull bar constraint rectangular steel pipe outsourcing self-compacting concrete reinforced column, including outsourcing rectangular steel pipe, self-compacting concrete, ribbed stiffener, pull bar, existing reinforced concrete post.The ribbed stiffener is identical with outside steel pipe wall thickness.The ribbed stiffener upper connecting rod answers the size in perforate, hole be able to pass through pull bar through position.The ribbed stiffener is evenly arranged in Covered with Angles tube wall interior periphery, between outside steel pipe tube wall and existing reinforced concrete post, is installed using welding method perpendicular to Covered with Angles tube wall.The pull bar passes perpendicularly through the tube wall of outsourcing rectangular steel pipe, and along pillar height side long, short side is with appropriate spacing interlaced arrangement.The tie rod end is connected by welding or bolt connection with Covered with Angles tube wall.Self-compacting concrete is poured in gap between outsourcing perforation rib pull bar constraint rectangular steel pipe and existing reinforced concrete post.The utility model can realize good consolidation effect with relatively thin steel plate thickness to large extent.
Description
Technical field
The utility model is related to Structures Reinforced Technique field, more particularly to a kind of perforation rib pull bar constraint rectangular steel pipe
Outsourcing self-compacting concrete reinforced column.
Background technology
Earthquake, fire, blast, collision, environment, artificial, durability, the reason such as change using function, can cause reinforcing bar
The Lack of support of concrete column.When the assessment that can relatively accurately carry out reinforced column residue mechanical property, rationally comment
Valency its degree of injury, can select rational restoring and fastening method, it is ensured that the safety of structure of civil engineering, it is to avoid remove weight
Build, reduce economic loss.Country will put into substantial contribution for various building reinforcement and repairs every year.Reinforcement Technology of Concrete Structure
Key Scientific And Technical Problems in the urgent need to address are turned into, there is important economic implications and social value for national economy.
The reinforced column method for reinforcing commonly used in engineering mainly has：Increasing section method for strengthening, Strengthening by Steel-Packing
The carbon cloth reinforced method of method, external pasting and outside steel pipe method for strengthening etc..Enlargement of Section situ wet operation is more, long construction period,
Larger is influenceed on original structure, even additional reinforcing can need to be carried out to the basis of original structure because of the increase of member dead weight sometimes.Outward
Steel clad reinforcement method is relatively low to the restriction ability of concrete transversely deforming, it is impossible to improve the ductility of component well.Paste carbon fine
Dimension (fiber reinforced plastic, abbreviation FRP) cloth method for strengthening is little to the bearing power increase amplitude of reinforced column, just
Degree improves also limited, and FRP material utilization rate is relatively low.Outside steel pipe method for strengthening is to process reinforced column to be reinforced
Behind surface (or dabbing, or bar planting, or both combine), outer steel pipe, and the casting concrete between space, it is ensured that steel pipe, new
Good bonding between casting concrete and existed concrete bridge.Outside steel pipe method for strengthening is by steel pipe and the coefficient original of concrete
Reinforcing compression column ought to be used, under pressure, due to the effect of contraction of outside steel pipe, the core concrete of rear part was reinforced
In three dimension stress state, compression strength is improved, so that the ultimate bearing capacity of component increases, deformability also strengthens.So
Reinforcing after sectional dimension of members relatively small (compared with increasing section method for strengthening), easy construction, can give full play to from close
The characteristic of real concrete material and the performance of steel tube confined concrete, reach cooperation, the purpose of overall stress.
Outsourcing rectangular steel pipe is concentrated mainly on corner to core concrete effect of contraction, and effect of contraction is almost in the middle part of four sides
Do not exist, so steel pipe is much smaller than circular steel tube concrete to the overall effect of restraint of core concrete, its bearing capacity is compared with outsourcing
Circular steel tube concrete is much lower.Outsourcing rectangular steel pipe section side long is weaker than short side to the effect of contraction of core concrete, and
Steel pipe side shorter edge long is more easy to local buckling.The lateral rigidity of outsourcing rectangular steel-tube concrete column steel plate is effectively improved,
Delay the bond-slip between steel pipe walls and concrete, the ability of its resistance local buckling can be lifted and to core concrete
The integraty of effect of contraction, reinforcing steel pipe and concrete, so as to improve bearing capacity and ductility.
Perforation rib pull bar constraint rectangular steel-tube concrete column integraty reinforcement technique is by the perforate on ribbed stiffener, constraint
Pull bar is perforated and mistake, connection（Can be using welding, plug welding mode of such as perforating also may be bolted）In in steel pipe walls, to putting more energy into
Rib forms effective effect of contraction, and then slows down the local buckling of steel pipe walls.
The content of the invention
Based on outside steel pipe method for strengthening and perforation rib pull bar constraint rectangular steel-tube concrete column integraty reinforcement technique, this reality
Rectangular steel pipe outsourcing self-compacting concrete is constrained with new proposition perforation rib pull bar and reinforce column technology, i.e., opened by ribbed stiffener
Hole, binding bar is perforated and mistake, connection（Can be using welding, plug welding mode of such as perforating also may be bolted）In in steel pipe walls,
Effective effect of contraction is formed to ribbed stiffener, between outsourcing perforation rib pull bar constraint rectangular steel pipe and existing steel core concrete column
Gap in pour self-compacting concrete, to reinforce existing reinforced concrete cylinder.
Perforation rib pull bar constraint rectangular steel pipe outsourcing self-compacting concrete reinforces post design, and the big cross-sectional distribution of intensity is in four
In week, larger cross sectional moment of inertia can be formed, be more suitable as bearing Compact-bending Load, with preferable resistance to overturning.Ribbed stiffener
Combined with binding bar, the point-like constraint of binding bar is become the wire constraint of ribbed stiffener, be not required to encrypt binding bar, be not required to
Larger stiffness ratio of stiffener to panel is used, excessive perforate, saving steel can be prevented effectively from steel pipe walls.Also, binding bar
Setting forms larger hoop constraint effect to steel pipe walls, can effectively delay the bond-slip between steel pipe walls and concrete.
Perforation rib pull bar constraint rectangular steel pipe outsourcing self-compacting concrete reinforced column construction technology is difficult construction is not increased
Degree, on the premise of meeting structure safety, can strengthen the ability of its resistance local buckling to large extent with relatively thin steel plate thickness
With the effect of contraction to core concrete, improve rectangular steel-tube concrete column steel pipe walls lateral rigidity, enhancing steel pipe with it is existing
The integraty of reinforced column, intensity higher, rigidity and ductility are realized with relatively low cost, and consolidation effect is good.
The utility model is adopted the following technical scheme that：
Perforation rib pull bar constraint rectangular steel pipe outsourcing self-compacting concrete reinforced column, including outsourcing rectangular steel pipe, self-compaction
Concrete, ribbed stiffener, pull bar, existing reinforced concrete post.The ribbed stiffener is strip-form steel plate, its thickness and Covered with Angles tube wall
It is thick identical.The ribbed stiffener upper connecting rod answers the size in perforate, hole be able to pass through pull bar through position.The ribbed stiffener is in Covered with Angles
Tube wall interior periphery is evenly arranged, between outside steel pipe tube wall inside and existing reinforced concrete post, perpendicular to outsourcing
Steel pipe walls are connected using welding method.The pull bar uses common pull bar or reinforcing bar, passes perpendicularly through the side long of outsourcing rectangular steel pipe,
Short side, along pillar height with appropriate spacing interlaced arrangement.The tie rod end is to select with the first connected mode of Covered with Angles tube wall
Welding, plug welding mode of such as perforating, second connected mode is to carry out mantle fiber treatment with thread cutter for steel bar in tie rod end, is passed through
Covered with Angles tube wall tapping is connected by screw bolts.Outsourcing perforation rib pull bar constraint rectangular steel pipe and existing reinforced concrete post it
Between gap in pour self-compacting concrete.
The beneficial effects of the utility model：
(1) with larger cross sectional moment of inertia, it is more suitable as bearing Compact-bending Load, with preferable resistance to overturning；
(2) it is not required to encrypt binding bar, it is not necessary to use larger stiffness ratio of stiffener to panel, be prevented effectively from the perforate on Covered with Angles tube wall
It is many；(3) outside steel pipe wall thickness can be reduced, strengthens side constraint ability, the office that outsourcing constrains steel pipe is slowed down to greatest extent
Portion's elastic-plastic buckling, effectively delays the bond-slip between Covered with Angles tube wall and concrete, improves the intensity and ductility of cylinder；
(4) compared with increasing section method for strengthening, vertical muscle and stirrup are changed to outside steel pipe, it is possible to decrease increasing section area；(5) self-compaction is mixed
Solidifying soil can effectively reduce difficulty of construction, it is ensured that concrete pouring quality；(6) outside steel pipe can as the template of rear pouring concrete,
Simplify working procedure, shorten the duration, reduce engineering cost.
Brief description of the drawings
Fig. 1 is front elevation view of the present utility model；
Fig. 2 is side view of the present utility model；
Fig. 3 is the A-A profiles of Fig. 1, Fig. 2；
Fig. 4 is special case of the present utility model, that is, rib pull bar constraint rectangular steel tube outsourcing self-compacting concrete reinforced column of perforating
Front elevation view；
Fig. 5 is special case of the present utility model, that is, rib pull bar constraint rectangular steel tube outsourcing self-compacting concrete reinforced column of perforating
Side view；
Fig. 6 is the A '-A ' profiles of Fig. 4, Fig. 5.
Shown in figure：1- pull bars draw with Covered with Angles tube wall tie point 2- long side direction ribbed stiffener 3- short side direction ribbed stiffeners 4-
Bar 5- outside steel pipe 6- self-compacting concrete 7- existing reinforced concrete post 8- ribbed stiffener position of opening
The ribbed stiffener that different directions length of side direction is set is represented for square steel tube concrete column, 2,3.
With reference to embodiment and accompanying drawing, the utility model is described in further detail, but reality of the present utility model
Apply mode not limited to this.
Specific embodiment
Embodiment
One kind perforation rib pull bar constraint rectangular steel pipe outsourcing self-compacting concrete reinforced column, including section long side direction is set
Ribbed stiffener 2, section short side direction set ribbed stiffener 3, pull bar 4, outsourcing rectangular steel pipe 5, self-compacting concrete 7.It is described to add
Strength rib is strip-form steel plate, and its thickness is identical with the wall thickness of outside steel pipe 5.The ribbed stiffener upper connecting rod answers perforate, hole through position 8
Size be able to pass through pull bar 4.The ribbed stiffener is evenly arranged in the tube wall interior periphery of outside steel pipe 5, positioned at outside steel pipe pipe
Between pars intramuralis and existing reinforced concrete post, connected using welding method perpendicular to the tube wall of outside steel pipe 5.The pull bar 4 is adopted
With common pull bar or reinforcing bar, the tube wall of outsourcing rectangular steel pipe 5 is passed perpendicularly through, along column section side long, short side is interlocked with appropriate spacing
Arrangement.The tie rod end is the plug welding side of such as perforating from welding with the first connected mode of Covered with Angles tube wall tie point 1
Formula, second connected mode is to carry out mantle fiber treatment with thread cutter for steel bar in tie rod end, and spiral shell is used through steel pipe walls tapping
Tether and connect.Self-compaction is poured in gap between outsourcing perforation rib pull bar constraint rectangular steel pipe and existing reinforced concrete post to mix
Solidifying soil 6.
Embodiment 1
It is a kind of perforate rib pull bar constraint rectangular steel pipe outsourcing self-compacting concrete reinforced column construction procedure be：
（1）Intensity, size, the position of outsourcing rectangular steel pipe, pull bar and ribbed stiffener are determined according to design drawing requirement；
（2）Make outsourcing rectangular steel pipe 5, ribbed stiffener, pull bar 4；
（3）The position of measurement and positioning pull bar 4, drills in the pull bar 1 of outsourcing rectangular steel pipe and ribbed stiffener through position；
（4）Ribbed stiffener is welded on outsourcing rectangle steel tube wall using welding manner method；
（5）Pull bar 4 is arranged in the hole that has been drilled of outsourcing rectangular steel pipe through ribbed stiffener, using perforation plug welding connection or
Bolt connection；
（6）Self-compacting concrete is poured in gap between outsourcing rectangular steel pipe and existing reinforced concrete post, by applying
Work requirement is conserved.
Above-described embodiment is the utility model preferably implementation method, but implementation method of the present utility model is not by described
The limitation of embodiment, it is other it is any without departing from the change made under Spirit Essence of the present utility model and principle, modify, replace
Generation, combination, simplification, should be equivalent substitute mode, be included within protection domain of the present utility model.
Claims (6)
1. a kind of perforation rib pull bar constrains rectangular steel pipe outsourcing self-compacting concrete reinforced column, it is characterised in that including outsourcing square
Shape steel pipe, self-compacting concrete, ribbed stiffener, pull bar, existing reinforced concrete post, the ribbed stiffener is in outsourcing rectangular steel pipe tube wall
Interior periphery is evenly arranged, between outsourcing rectangular steel pipe tube wall inside and existing reinforced concrete post, perpendicular to outsourcing square
Shape steel pipe tube wall is installed using welding method, and the pull bar is passed perpendicularly through ribbed stiffener, handed over appropriate spacing along pillar height side long, short side
Mistake arrangement, tie rod end is connected with outsourcing rectangular steel pipe tube wall, between outsourcing rectangular steel pipe and existing reinforced concrete post
Self-compacting concrete is poured in gap.
2. a kind of perforation rib pull bar according to claim 1 constrains rectangular steel pipe outsourcing self-compacting concrete reinforced column, its
It is characterised by, the ribbed stiffener is strip-form steel plate, its thickness is identical with outsourcing rectangular steel pipe wall thickness.
3. a kind of perforation rib pull bar according to claim 1 constrains rectangular steel pipe outsourcing self-compacting concrete reinforced column, its
It is characterised by, pass through position perforate in pull bar on the ribbed stiffener, hole size be able to pass through pull bar.
4. a kind of perforation rib pull bar according to claim 1 constrains rectangular steel pipe outsourcing self-compacting concrete reinforced column, its
It is characterised by, the pull bar uses common pull bar or reinforcing bar.
5. a kind of perforation rib pull bar according to claim 1 constrains rectangular steel pipe outsourcing self-compacting concrete reinforced column, its
It is characterised by, the tie rod end selects welding with the first connected mode of outsourcing rectangular steel pipe tube wall.
6. a kind of perforation rib pull bar according to claim 1 constrains rectangular steel pipe outsourcing self-compacting concrete reinforced column, its
It is characterised by, the tie rod end is connected by screw bolts with second connected mode of outsourcing rectangular steel pipe tube wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620363920.4U CN206233626U (en) | 2016-04-27 | 2016-04-27 | Perforation rib pull bar constraint rectangular steel pipe outsourcing self-compacting concrete reinforced column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620363920.4U CN206233626U (en) | 2016-04-27 | 2016-04-27 | Perforation rib pull bar constraint rectangular steel pipe outsourcing self-compacting concrete reinforced column |
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| CN206233626U true CN206233626U (en) | 2017-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620363920.4U Expired - Fee Related CN206233626U (en) | 2016-04-27 | 2016-04-27 | Perforation rib pull bar constraint rectangular steel pipe outsourcing self-compacting concrete reinforced column |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386100A (en) * | 2017-07-27 | 2017-11-24 | 长安大学 | More limb hollow combination tower piers |
| CN110359728A (en) * | 2019-07-16 | 2019-10-22 | 西安建筑科技大学 | A kind of rectangular section RC column active constraint bracing means |
| CN112900910A (en) * | 2021-01-21 | 2021-06-04 | 东南大学 | Three-dimensional frame reinforcing structure in large-volume brick-stone masonry column body and construction method |
| CN113356631A (en) * | 2021-05-21 | 2021-09-07 | 郑州工业应用技术学院 | Main structure reinforcing device of high-rise building |
| CN114809693A (en) * | 2022-03-21 | 2022-07-29 | 重庆科技学院 | High-load self-restraint reinforcing device for existing reinforced concrete column |
| CN115075607A (en) * | 2019-04-17 | 2022-09-20 | 深圳中固建筑集团有限公司 | Reinforced concrete structure and reinforcing method |
-
2016
- 2016-04-27 CN CN201620363920.4U patent/CN206233626U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386100A (en) * | 2017-07-27 | 2017-11-24 | 长安大学 | More limb hollow combination tower piers |
| CN115075607A (en) * | 2019-04-17 | 2022-09-20 | 深圳中固建筑集团有限公司 | Reinforced concrete structure and reinforcing method |
| CN110359728A (en) * | 2019-07-16 | 2019-10-22 | 西安建筑科技大学 | A kind of rectangular section RC column active constraint bracing means |
| CN112900910A (en) * | 2021-01-21 | 2021-06-04 | 东南大学 | Three-dimensional frame reinforcing structure in large-volume brick-stone masonry column body and construction method |
| CN112900910B (en) * | 2021-01-21 | 2022-04-12 | 东南大学 | Three-dimensional frame reinforcing structure in large-volume brick-stone masonry column body and construction method |
| CN113356631A (en) * | 2021-05-21 | 2021-09-07 | 郑州工业应用技术学院 | Main structure reinforcing device of high-rise building |
| CN114809693A (en) * | 2022-03-21 | 2022-07-29 | 重庆科技学院 | High-load self-restraint reinforcing device for existing reinforced concrete column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170609 Termination date: 20190427 |