CN110219474A - A kind of structural column increasing section reinforcement means using steel tube confinement - Google Patents
A kind of structural column increasing section reinforcement means using steel tube confinement Download PDFInfo
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- CN110219474A CN110219474A CN201910448768.8A CN201910448768A CN110219474A CN 110219474 A CN110219474 A CN 110219474A CN 201910448768 A CN201910448768 A CN 201910448768A CN 110219474 A CN110219474 A CN 110219474A
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- column
- steel pipe
- existing structure
- reinforcement means
- increasing section
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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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
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- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention discloses a kind of structural column increasing section reinforcement means using steel tube confinement: surrounding existing structure column (2) with constraint steel pipe (1), casting concrete (3) between on the inside of constraint steel pipe (1) and on the outside of existing structure column (2), and bolumn cap (4) are increased newly at existing structure column (2) bean column node.The method of the present invention provides strong constraint to existing structure column core space concrete by constraint steel pipe (1), to make the compression strength of existing structure column core space concrete be enhanced, effective consolidation process is carried out to beam column node core area by newly-increased bolumn cap (4), greatly enhance the bearing capacity of bean column node, it is easy to operate with easy construction, save template, stress form is reasonable, the good feature of consolidation effect.
Description
(1) technical field
The present invention relates to civil engineering structure field of reinforcement, refer specifically to a kind of structural column increasing section using steel tube confinement
Reinforcement means.
(2) background technique
In Construction of Civil Engineering field, main structure the phenomenon that construction quality problem occurs often in the construction process to be had out
It is existing.For structural column component, can usually encounter such as concrete pouring quality is poor, column side voids and pits mostly and concrete strength
Grade is not up to standard to wait construction quality problems, these construction quality problems influence whether the safety and normal use of structure, it is necessary to right
These construction quality problems are repaired or are handled.
For certain incomplete or delayed projects engineerings, main structure is just stopped work after only completing a part.Due to lacking building enclosure,
Its main structure is completely exposed among natural environment.It has constructed the main structure of completion, even if quality is closed after the completion of construction
Lattice, but experience it is long-term expose to the sun and rain after, biggish change can occur for stress performance, seriously affect structure and continue to make
With.Before restoring construction, it is necessary to carry out repairing or consolidation process to these problems existing for existing structure, eliminate already present peace
Full hidden danger.
Further, since existing building leads to the mode of transfer force and bearing load hair of original structure using variation functionally
Changing, so that the unbearable newly increased load of original structure column, it is necessary to carry out consolidation process to it, just be able to satisfy existing building
New use demand.
In the demand scene, it is required to carry out consolidation process to existing structure column.Common column reinforcing and processing method
Have: increasing section method for strengthening, outsourcing CFRP Sheet Strengthening Method, reinforced with external steel encased and outer reinforcement by sticking of sheets.Wherein, increasing section adds
Gu method is to apply to obtain more universal reinforcement means.
Traditional increasing section method for strengthening is according to live structure detection appraisal and design checking situation, in pillar
One side, two sides or four sides reinforced concrete enveloped, the basic principle is that by increasing concrete compression area and quantity of reinforcement,
To make up the Lack of support of existing structure column.It is worth noting that, this routine reinforcement means is to existing structure column core space
The compression strength reinforcing effect of concrete is not obvious, and reason is that newly-increased armored concrete cannot be to core space concrete shape
At strong constraint.
In bean column node region, the beam of all directions is concentrated in column cap position to be converged, and existing steel bar arrangement is intensive, and part is new
Increase reinforcing bar to be inevitably truncated, the consolidation effect that the consolidation effect at bean column node is weaker than column component itself is good, does not meet
The structural concept design thinking of " the strong weak component of node ", leaves some potential safety problems to structure.
(3) summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology, provides a kind of structural column increase section using steel tube confinement
Face reinforcement means provides strong constraint to core space concrete by constraint steel pipe, to make existing structure column core space concrete
Compression strength be enhanced, effective consolidation process is carried out to beam column node core area by newly-increased bolumn cap, greatly enhances beam column
The bearing capacity of node has easy construction, easy to operate, saves template, stress form is reasonable, the good feature of consolidation effect.
The object of the present invention is achieved like this, this uses the structural column increasing section reinforcement means of steel tube confinement, is
Existing structure column is surrounded with constraint steel pipe, is constraining casting concrete between on the inside of steel pipe and on the outside of existing structure column, and both
Have and increases bolumn cap at structural column bean column node newly.In this way, casting concrete and constraint steel pipe form effective package to existing structure column,
The concrete newly poured increases the compression area of existing structure column.Constraint steel pipe enhances existing structure column core space concrete
Compression strength, newly-increased bolumn cap ensure that the consolidation effect of existing structure column bean column node, meet the knot of " the strong weak component of node "
Structure conceptual design.
This uses the structural column increasing section reinforcement means of steel tube confinement, and the constraint steel pipe arrangement altitude range is described
Existing structure column goes out floor top surface between the soffit of top.In this way, the arrangement of constraint steel pipe is not penetrated whole structural column, constrain
Steel pipe can not undertake vertical load, only provide the lateral confinement to the existing structure column in addition to bean column node range.
This uses the structural column increasing section reinforcement means of steel tube confinement, and the production method of the constraint steel pipe is to reinforce
Construction site assembly is formed by connecting.Steel pipe is constrained for rectangle, four blocks of steel plates or two C-type steel assembly can be used, for circle
Shape constrains steel pipe, and it is assembled that two pieces, three pieces or four blocks circular arc steel plates can be used.After required steel plate and fashioned iron on-site consolidation in place,
It is welded by construction personnel or is bolted, form rectangle or circular constraint steel pipe.
This use steel tube confinement structural column increasing section reinforcement means, the concrete using without vibration, self-flowing dense,
Slightly expanded concrete.It selects good fluidity, self-compaction, need the slightly expanded concrete to vibrate, can effectively guarantee coagulation
Native pouring quality guarantees that concrete effectively fills the space between on the inside of constraint steel pipe and on the outside of existing structure column, formation pair
Effective package of existing structure column.
This uses the structural column increasing section reinforcement means of steel tube confinement, and the bolumn cap bottom package constraint steel pipe is centainly high
Degree.In this way, there are the overlay regions of certain altitude with steel tube confinement section for newly-increased bolumn cap, it is ensured that the two can work together, and
There is no the weak sections of unguyed processing.
To realize the structural column increasing section reinforcement means for using steel tube confinement, construction method of the invention, including as follows
Step: (1) flooring absolute altitude reinforced column locating at, required steel plate or fashioned iron is placed by group, after on-site consolidation is in place, carried out
It welds or is bolted；(2) in bean column node region, binding anchoring bolumn cap reinforcing bar installs bolumn cap template；(3) aforementioned work is checked
Sequence, behind the unqualified place of adjusting correction, inside bolumn cap, on the inside of constraint steel pipe and on the outside of existing structure column between casting concrete.
This uses the structural column increasing section reinforcement means easy construction of steel tube confinement, easy to operate, compared to traditional
Increasing section method for strengthening saves column template material, omits template processing and formwork demoulding work, stress form is reasonable, adds
Gu effect is good, with good economic efficiency and social benefit.
(4) Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the structural plan schematic diagram of the embodiment of the present invention 1；
Fig. 3 is that 1 bolumn cap form of the embodiment of the present invention is trapezoidal structural schematic diagram；
Fig. 4 is that 1 bolumn cap form of the embodiment of the present invention is trapezoidal structural plan schematic diagram；
Fig. 5 is the structural schematic diagram that the embodiment of the present invention 1 constrains that steel pipe reinforces rectangular column using rectangle；
Fig. 6 is the structural schematic diagram that the embodiment of the present invention 1 constrains that steel pipe reinforces circular columns using rectangle；
Fig. 7 is the structural schematic diagram that the embodiment of the present invention 1 reinforces circular columns using round constraint steel pipe.
Fig. 8 is the structural schematic diagram that the embodiment of the present invention 1 reinforces rectangular column using round constraint steel pipe；
(5) specific embodiment
Present invention is further described in detail in the following with reference to the drawings and specific embodiments.
With reference to Fig. 1-Fig. 8, this uses the structural column increasing section reinforcement means of steel tube confinement, it is characterised in that: with constraint
Steel pipe 1 surrounds existing structure column 2, the casting concrete 3 between 2 outside of 1 inside of constraint steel pipe and existing structure column, and existing
Increase bolumn cap 4 at 2 bean column node of structural column newly, constraint steel pipe 1 arranges that altitude range is that the existing structure column 2 goes out floor top surface extremely
Between the soffit of top, the production method of the constraint steel pipe 1 is to be formed by connecting in strengthening construction on-site consolidation, the concrete
3 use without vibration, self-flowing dense, slightly expanded concrete, 4 bottom of bolumn cap package constraint 1 certain altitude of steel pipe.
Claims (5)
1. a kind of structural column increasing section reinforcement means using steel tube confinement, it is characterised in that: both with constraint steel pipe (1) package
There are structural column (2), the casting concrete (3) between constraint steel pipe (1) inside and existing structure column (2) outside, and in existing knot
Bolumn cap (4) are increased newly at structure column (2) bean column node.
2. the structural column increasing section reinforcement means according to claim 1 using steel tube confinement, it is characterised in that: described
Constraining steel pipe (1) arrangement altitude range is floor top surface at the existing structure column (2) between the soffit of top.
3. the structural column increasing section reinforcement means according to claim 1 using steel tube confinement, it is characterised in that: described
The production method of constraint steel pipe (1) is to be formed by connecting in strengthening construction on-site consolidation.
4. the structural column increasing section reinforcement means according to claim 1 using steel tube confinement, it is characterised in that: described
Concrete (3) uses without vibration, self-flowing dense, slightly expanded concrete.
5. the structural column increasing section reinforcement means according to claim 1 using steel tube confinement, it is characterised in that: described
Bolumn cap (4) bottom package constraint steel pipe (1) certain altitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910448768.8A CN110219474A (en) | 2019-05-28 | 2019-05-28 | A kind of structural column increasing section reinforcement means using steel tube confinement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910448768.8A CN110219474A (en) | 2019-05-28 | 2019-05-28 | A kind of structural column increasing section reinforcement means using steel tube confinement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110219474A true CN110219474A (en) | 2019-09-10 |
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ID=67818586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910448768.8A Pending CN110219474A (en) | 2019-05-28 | 2019-05-28 | A kind of structural column increasing section reinforcement means using steel tube confinement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110219474A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878730A (en) * | 2021-03-26 | 2021-06-01 | 湖南瑞弗斯科技发展有限公司 | Pouring system for antigravity reinforcement |
| CN114541794A (en) * | 2021-08-25 | 2022-05-27 | 上海民航新时代机场设计研究院有限公司 | Steel pipe confined reinforced concrete column reinforcing structure and reinforcing method |
-
2019
- 2019-05-28 CN CN201910448768.8A patent/CN110219474A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878730A (en) * | 2021-03-26 | 2021-06-01 | 湖南瑞弗斯科技发展有限公司 | Pouring system for antigravity reinforcement |
| CN114541794A (en) * | 2021-08-25 | 2022-05-27 | 上海民航新时代机场设计研究院有限公司 | Steel pipe confined reinforced concrete column reinforcing structure and reinforcing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190910 |