CN107269016B - A kind of node that existing reinforced concrete column is connect with newly-increased reinforced beam - Google Patents
A kind of node that existing reinforced concrete column is connect with newly-increased reinforced beam Download PDFInfo
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- CN107269016B CN107269016B CN201710343277.8A CN201710343277A CN107269016B CN 107269016 B CN107269016 B CN 107269016B CN 201710343277 A CN201710343277 A CN 201710343277A CN 107269016 B CN107269016 B CN 107269016B
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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
- E04G23/0266—Enlarging
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- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a kind of nodes that existing reinforced concrete column is connect with newly-increased reinforced beam, including existing column and newly-increased beam, it further include the vertical muscle and U-shaped interface muscle of newly-increased beam, the vertical muscle of the newly-increased beam is around the edge of existing column, it is put in the newly-increased beam at existing column both ends respectively after edge bends certain angle, the U-shaped interface muscle is vertically implanted into the four sides of existing column and newly-increased beam connecting node and the vertical muscle of newly-increased beam is fixed in U-shaped interface muscle.The present invention is different from traditional bar planting and increases beam technology newly, newly-increased node mainly connects existing column and newly-increased beam by the U-shaped interface muscle of existing four side of column implantation, the vertical muscle of newly-increased beam is not implanted into existing column, and it uses the lesser U-shaped interface muscle of diameter instead and is implanted into existing column, both it can be reduced bar planting and be put into depth, it again can be in the bar planting of existing column four sides, break only in the limitation of newly-increased beam interface bar planting, has better met requirement of the embedding re-bar technique to " diameter of implantation reinforcing bar " and " spacing and back gauge of bar planting " etc..
Description
Technical field
The invention belongs to building engineering fields, and in particular to a kind of existing reinforced concrete column and newly-increased reinforced beam
The node of connection.
Background technique
Referring to external Experience in Development, the strengthening reconstruction of domestic existing building will become soon the main of construction industry following
Business, China's existing building storage is huge, and the demand of strengthening reconstruction is more and more.It is often used during strengthening reconstruction
Bar planting increasing layer technology uses the requirement of function to reach change building.During bar planting increasing layer, need to bore on existing column
Hole, to existing column at certain injury, new increasing layer makes existing column need to bear additional weight again.Embedding re-bar technique is to " implantation
The diameter of reinforcing bar ", " bar planting depth ", " bar planting spacing and back gauge " etc. it is more demanding.Therefore a kind of novel technology is needed
Above-mentioned requirements are better met, embedding re-bar technique is enable to be more widely used.
Summary of the invention
The purpose of the present invention is to provide a kind of node that existing reinforced concrete column is connect with newly-increased reinforced beam,
When for solution, existing column increases beam newly in strengthening reconstruction, the bar planting of existing column surface excessively makes existing column destroy larger, bearing capacity
Insufficient and bar planting interface tensile capacity deficiency problem.
The purpose of the present invention is achieved through the following technical solutions:
A kind of node that existing reinforced concrete column is connect with newly-increased reinforced beam, including existing column and newly-increased beam,
It is characterized by also including the vertical muscle of newly-increased beam and U-shaped interface muscle, the vertical muscle of the newly-increased beam around the edge of existing column,
It is put in the newly-increased beam at existing column both ends respectively after edge bending certain angle, the U-shaped interface muscle is vertically implanted into both
There is the four sides of column and newly-increased beam connecting node and the vertical muscle of newly-increased beam is fixed in U-shaped interface muscle.
It as a further improvement of the present invention, further include the stirrup and node stirrup of newly-increased beam, the stirrup of the newly-increased beam
Newly-increased beam is waled, the node stirrup wales U-shaped interface muscle.
Further, the angle of the vertical muscle bending of the newly-increased beam need to meet the tangent value of the angle less than 1/6.
Preferably, the diameter of the U-shaped interface muscle is less than the diameter of the vertical muscle of newly-increased beam, the U-shaped interface muscle implantation
Depth is 10 times of its diameter.
Further, four sides dabbing at the node that the existing column is connect with newly-increased beam.
Further, the existing column increases beam newly, increases the vertical muscle of beam newly, and U-shaped interface muscle increases the stirrup and node of beam newly
Stirrup is poured together jointly by casting concrete.
The present invention, around column, is made the vertical muscle of newly-increased beam not need to be implanted into existing column, reduces existing column surface by vertical muscle
Bar planting reduces the destruction to existing column.Compared with muscle is indulged in traditional implantation, newly-increased U-shaped interface muscle is used than newly-increased beam
The vertical smaller reinforcing bar of muscle diameter, the depth of implantation are 10 times of planted bar diameter, and the vertical muscle of newly-increased beam are fixed on U-shaped boundary
In gluten, due to there is the vertical muscle of newly-increased beam to bear pulling force, so the vertical rib area for planting the relatively newly-increased beam of U-shaped interface muscle area can
Less；And the position of U-shaped interface muscle arrangement get along well newly-increased beam vertical muscle it is the same can only be in the stirrup location arrangements of newly-increased beam, U
Type interface muscle can arrange arbitrarily as needed, and from it is traditional can only be different along the bar planting of newly-increased beam direction, U-shaped interface muscle can
It arranges, greatly meeting influences two bigger requirements on bar planting: " diameter of implantation reinforcing bar " and " planting at the four sides of existing column
The spacing and back gauge of muscle ", enables embedding re-bar technique to be more widely used.
Compared with prior art, the present invention has the following technical effect that:
(1) reinforcing bar being implanted into is smaller, and the depth of required implantation is more shallow, smaller to the injury of existing column；
(2) it needs the area of bar planting smaller, reduces the destruction to existing column；
(3) be implanted into reinforcing bar position do not limited by the vertical muscle position of newly-increased beam, and can in the four sides bar planting of existing column,
More it is able to satisfy requirement of the bar planting to spacing and back gauge；
(4) newly-increased beam is reduced to the pulling force at bar planting interface, improves the safety of structure.
Detailed description of the invention
Described herein the drawings are intended to provide a further understanding of the invention, constitutes a part of the invention, but
And it does not constitute a limitation of the invention.
Fig. 1 is the elevation of a kind of existing reinforced concrete column and newly-increased armored concrete beam connecting node；
Fig. 2 is the 1-1 of Fig. 1 to sectional view；
Fig. 3 is the 2-2 of Fig. 2 to sectional view；
Fig. 4 is the structural schematic diagram of U-shaped interface muscle；
Fig. 5 is the structural schematic diagram of the vertical muscle of newly-increased beam.
Wherein, 1, existing column, 2, newly-increased beam, 21, the vertical muscle of newly-increased beam, 22, the stirrup of newly-increased beam, 3, U-shaped interface muscle, 4,
Node stirrup.
Specific embodiment
For the present invention is described in further detail, it is as follows that its specific embodiment is now disclosed.
As shown in Figs. 1-5, a kind of node that existing reinforced concrete column is connect with newly-increased reinforced beam, including it is existing
Column 1 increases beam 2 newly, increases the vertical muscle 21 of beam newly, and U-shaped interface muscle 3 increases the stirrup 22 and node stirrup 4 of beam newly.The vertical muscle of newly-increased beam
21, around the edge of existing column 1, put in the newly-increased beam 2 positioned at existing 1 both ends of column after edge bends certain angle & respectively
In, but be not implanted into existing column 1, the angle A P.MM.AP that the vertical muscle 21 of newly-increased beam is bent need to meet tan & < 1/6.U-shaped interface muscle 3
It is vertically implanted into the four sides of existing column 1 and newly-increased 2 connecting node of beam and the vertical muscle 21 of newly-increased beam is fixed in U-shaped interface muscle 3, newly
The stirrup 22 for increasing beam wales newly-increased beam 2, and node stirrup 4 wales U-shaped interface muscle 3, and the diameter of U-shaped interface muscle 3 is less than newly-increased
The diameter of the vertical muscle 21 of beam, the depth that U-shaped interface muscle 3 is implanted into are 10 times of its diameter, and the vertical muscle 21 due to increasing beam newly is fixed on
In U-shaped interface muscle 3, the vertical muscle 21 by increasing beam newly bears pulling force, so planting the vertical muscle face of the relatively newly-increased beam of U-shaped interface muscle area
Product can be less.Four sides dabbing at the node that existing column 1 is connect with newly-increased beam 2, enables new-old concrete to be preferably combined together,
Collective effect.Existing column 1 increases beam 2 newly, increases the vertical muscle 21 of beam newly, and U-shaped interface muscle 3 increases the stirrup 22 and node stirrup 4 of beam newly
It is poured jointly together by casting concrete.
The present invention reduces destruction of the bar planting to existing column 1 by being implanted into smaller reinforcing bar and the less area of reinforcement.It adopts
It is implanted into the form of U-shaped interface muscle 3 on four sides with existing column 1, the requirement of bar planting spacing and back gauge can be better met, make embedding re-bar technique
Requirement to existing column 1 is lower, can apply in wider engineering.The vertical muscle 21 of newly-increased beam is not implanted into existing column 1, is made new
It is smaller to the pulling force at new-old concrete interface to increase beam 2, new-old concrete is enable preferably to cooperate.The present invention increases node packet newly
Existing column 1 is wrapped up in, certain consolidation effect is played to existing column 1；Newly-increased node mainly passes through the U that existing column 1 is implanted on four sides
Type interface muscle 3 connects existing column 1 and newly-increased beam 2；The present invention is different from traditional bar planting and increases beam technology newly, increases the vertical muscle of beam newly
21 are not implanted into existing column 1, and use the lesser U-shaped interface muscle 3 of diameter instead and be implanted into existing column 1, both can be reduced bar planting and have been put into
Depth, and can break only in the limitation of newly-increased 1 interface bar planting of beam in existing 1 four sides bar planting of column, better meet embedding re-bar technique
Requirement to " diameter of implantation reinforcing bar " and " spacing and back gauge of bar planting " etc..The present invention on existing column 1 increase newly beam 2, but
The engineering that column section is unsatisfactory for node bar planting requirement provides a kind of splendid solution.
Claims (6)
1. a kind of node that existing reinforced concrete column is connect with newly-increased reinforced beam, including existing column (1) and newly-increased beam
(2), it is characterised in that: further include the vertical muscle (21) and U-shaped interface muscle (3) of newly-increased beam, the vertical muscle (21) of the newly-increased beam around
The edge of existing column (1) puts in the newly-increased beam positioned at existing column (1) both ends after edge bends certain angle (&) respectively
(2) in, the U-shaped interface muscle (3) is vertically implanted into the four sides of existing column (1) and newly-increased beam (2) connecting node and by newly-increased beam
Vertical muscle (21) are fixed in U-shaped interface muscle (3).
2. the node that a kind of existing reinforced concrete column according to claim 1 is connect with newly-increased reinforced beam,
It is characterized in that: further including the stirrup (22) and node stirrup (4) of newly-increased beam, the stirrup (22) of the newly-increased beam is by newly-increased beam (2)
It wales, the node stirrup (4) wales U-shaped interface muscle (3).
3. the node that a kind of existing reinforced concrete column according to claim 1 or 2 is connect with newly-increased reinforced beam,
It is characterized by: the angle (&) that the vertical muscle of the newly-increased beam is bent need to meet the tangent value of the angle (&) less than 1/6.
4. the node that a kind of existing reinforced concrete column according to claim 3 is connect with newly-increased reinforced beam,
Be characterized in that: the diameter of the U-shaped interface muscle (3) is less than the diameter of the vertical muscle (21) of newly-increased beam, and the U-shaped interface muscle (3) is planted
The depth entered is 10 times of its diameter.
5. the node that a kind of existing reinforced concrete column according to claim 4 is connect with newly-increased reinforced beam,
It is characterized in that: four sides dabbing at the node that the existing column (1) connect with newly-increased beam (2).
6. the node that a kind of existing reinforced concrete column according to claim 5 is connect with newly-increased reinforced beam,
Be characterized in that: the existing column (1) increases newly beam (2), increases the vertical muscle (21) of beam newly, and U-shaped interface muscle (3) increases the stirrup of beam newly
(22) it is poured jointly together with node stirrup (4) by casting concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710343277.8A CN107269016B (en) | 2017-05-16 | 2017-05-16 | A kind of node that existing reinforced concrete column is connect with newly-increased reinforced beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710343277.8A CN107269016B (en) | 2017-05-16 | 2017-05-16 | A kind of node that existing reinforced concrete column is connect with newly-increased reinforced beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107269016A CN107269016A (en) | 2017-10-20 |
| CN107269016B true CN107269016B (en) | 2019-07-09 |
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| CN201710343277.8A Active CN107269016B (en) | 2017-05-16 | 2017-05-16 | A kind of node that existing reinforced concrete column is connect with newly-increased reinforced beam |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110629890A (en) * | 2019-09-26 | 2019-12-31 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | Reinforced concrete column connecting structure and building |
| CN111364478A (en) * | 2020-03-31 | 2020-07-03 | 中铁第四勘察设计院集团有限公司 | Construction method for modifying crown beam, foundation pit support structure and crown beam |
| CN112696044A (en) * | 2020-12-29 | 2021-04-23 | 广州市大新特种建筑新技术开发有限公司 | Ring beam joint and method for anchoring newly-added structural beam on concrete column |
| CN114059792A (en) * | 2021-11-16 | 2022-02-18 | 刘征 | Connecting structure and method for newly-added beam and existing column with through beam longitudinal ribs |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201280727Y (en) * | 2008-08-06 | 2009-07-29 | 青岛海川建设集团有限公司 | After-increasing cantilever beam root node structure on frame construction |
| CN202324203U (en) * | 2011-11-17 | 2012-07-11 | 辽宁省建筑设计研究院 | Connecting node structure for existing concrete column and new steel column |
| CN202969974U (en) * | 2012-08-13 | 2013-06-05 | 黄智辉 | Jacketed reinforced concrete reinforcing column |
| CN102966245A (en) * | 2012-12-07 | 2013-03-13 | 清华大学 | Connecting method of steel beam and existing reinforced concrete column |
| CN104196261B (en) * | 2014-09-19 | 2016-06-01 | 山东省建筑科学研究院 | A kind of existed concrete bridge post and newly-increased steel beam connecting joint |
| CN204126295U (en) * | 2014-10-22 | 2015-01-28 | 天颂建设集团有限公司 | Outsourcing reinforcing bar ruggedized construction at the bottom of a kind of beam |
| KR101678508B1 (en) * | 2015-01-20 | 2016-11-23 | 롯데건설 주식회사 | the pipe diagrid joint structure and the compression test structure using the same |
| CN106401207B (en) * | 2016-10-13 | 2019-04-02 | 浙江杰地建筑设计有限公司 | The overlapping connection structure and its construction method on pillar basis are added for existing building |
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Effective date of registration: 20200114 Address after: 510500 No. 121 martyrs East Road, Guangzhou, Guangdong, Tianhe District Patentee after: GUANGDONG JIANKE CONSTRUCTION ENGINEERING TECHNOLOGY DEVELOPMENT CO., LTD. Address before: 510500 martyrs East Road, Guangdong, Guangzhou No. 121 Co-patentee before: GUANGDONG JIANKE CONSTRUCTION ENGINEERING TECHNOLOGY DEVELOPMENT CO., LTD. Patentee before: Guangdong Construction Academy Group Plc |
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