CN102777052B - Reinforced concrete jacket strengthening beam-column core area structure - Google Patents
Reinforced concrete jacket strengthening beam-column core area structure Download PDFInfo
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- CN102777052B CN102777052B CN201210285842.7A CN201210285842A CN102777052B CN 102777052 B CN102777052 B CN 102777052B CN 201210285842 A CN201210285842 A CN 201210285842A CN 102777052 B CN102777052 B CN 102777052B
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- stirrup
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Abstract
A reinforced concrete jacket strengthening beam-column core area structure comprises a core area concrete strengthening jacket, wherein a plurality of anchor bar through holes and a plurality of additionally-arranged column longitudinal ribs are arranged in the core area concrete strengthening jacket along four sides of an initial column; a plurality of stirrup through holes are arranged by being parallel to the anchor bar through holes and close to the edge of the core area concrete strengthening jacket; a plurality of core area sealing stirrups are arranged in the core area concrete strengthening jacket, run through the stirrup through holes and are sealed at the corner of the core area; both ends of a column winding longitudinal tie bar and a column winding transverse tie bar are provided with hooks and respectively run through tie bar through holes; the hooks of the column winding longitudinal tie bar and the column winding transverse tie bar bend towards the side back away from the initial column and are jointed with the sealing stirrups at the core area; rib planting glue is filled in the stirrup through holes and the tie bar through holes; and the additionally-arranged column longitudinal ribs run through the initial floor and bend inwards, and the upper and lower additionally-arranged column vertical ribs are connected after bending. The structure is widely used for the core area of strengthening beams and strengthening beam columns.
Description
Technical field
The present invention relates to a kind of beam column core area structure, particularly a kind of beam column core area structure that reinforced concrete soil suite is reinforced.
Background technology
Beam column core space is exactly the position of joints of beam column handing-over, to belong to altogether beam, the part of post, in structure design, it is the region that needs emphasis to strengthen, in seismic design, an important principle is exactly " strong node, weak member ", even like this for ordinary construction, for the bean column node after reinforcing, owing to there being the problem connecting between new-old concrete face, can form reliable connection, be related to the use safety of whole node region, in addition, with respect to common beam column node core area, the beam column core space of reinforcing through cover exists new and old structure reliably to connect, structural measure is subject to the difficulty such as arrangement of reinforcement restriction in original post and beam structure cross section.
Summary of the invention
The object of this invention is to provide a kind of reinforced concrete soil suite reinforcement post core area structure, the beam column that solve after cover is reinforced forms the reliable technical problem connecting between core space new-old concrete face.
For achieving the above object, the present invention adopts following technical scheme:
A kind of reinforced concrete soil suite reinforcement post core area structure, be positioned at former post and Yuan Liang junction, comprise core space concrete strengthening cover, in described core space concrete strengthening cover, be provided with and wear dowel hole along the four sides of former post, newly-increased post longitudinal reinforcement, be parallel to and wear dowel hole and have and wear stirrup hole near core space concrete strengthening cover marginal position, in described core space concrete strengthening cover, be provided with core space closed stirrup, core space closed stirrup limb is worn stirrup hole in the sealing of the bight of core space, described around the vertical lacing wire of post with around the horizontal lacing wire of post two ends band crotch, wear respectively lacing hole, described around the vertical lacing wire of post with bend towards and deviate from former post one side around the crotch of the horizontal lacing wire of post, and with core space closed stirrup drawknot, described wear stirrup hole and wear in lacing hole, be all filled with anchoring adhesive, described newly-increased post longitudinal reinforcement is through former floor and to former floor inner bending, after bending, upper and lower two newly-increased post longitudinal reinforcements connect.
Described former post is provided with crotch dowel overlapping upper and lower contact surface place without beam side and former beam and core space concrete strengthening, and described crotch dowel flat end inserts former post or core space concrete strengthening puts wearing in stirrup hole of offering, between gap filling have anchoring adhesive.
Described around the vertical lacing wire of post be 135 degree around the angle of the crotch of the horizontal lacing wire of post.
The thickness of described core space concrete strengthening cover is not less than 150mm.
Described core space closed stirrup is for being formed by connecting by branch sleeve by segmentation stirrup or butt welding is welded.
Described core space closed stirrup, around the vertical lacing wire of post be not less than 8mm around the diameter of the horizontal lacing wire of post, spacing is not more than the requirement of corresponding antidetonation grade column tie-bar spacing.
The described limb around the vertical lacing wire of post is apart from being not more than 350mm.
Compared with prior art the present invention has following characteristics and beneficial effect:
Former post, Yuan Liang and former floor by newly-increased beam column core space closed stirrup, newly-increasedly walk around the lacing wire of former post, dowel with 90 or 135 degree crotches and double as that the former floor bar of cutting mill reinforcing bar forms newly together, old concrete contact surface has reliable connection, and conforms with the steel bar concrete beam column core space member of the mass action of corresponding antidetonation grade beam column core space spacing of stirrup legs, spacing requirement; Wherein newly-increased beam column core space steel bar concrete cover is the rectangle steel bar concrete cover of a sealing, by newly-increased beam column core space closed stirrup, newly-increased walk around the lacing wire of former post, dowel with 90 degree crotches and double as the former floor bar of cutting mill reinforcing bar be reliably connected at new, old concrete contact surface according to shearing tribology principle with former post, Yuan Liang and former floor; Simultaneously by newly-increased walk around the lacing wire of former post, newly-increased beam column core space closed stirrup wide with former post >=the newly-increased dowel with 90 degree crotches that adds when 450mm together with, described newly-increased beam column core space steel bar concrete cover is formed and conforms with the entirety constraint that corresponding antidetonation grade beam column core space spacing of stirrup legs, spacing require.
In described newly-increased beam column core space steel bar concrete cover, simultaneously by newly-increased walk around the lacing wire of former post, newly-increased beam column core space closed stirrup wide with former post >=the newly-increased dowel (doubling as lacing wire) with 90 degree crotches that adds when 450mm together with, described newly-increased beam column core space steel bar concrete cover has been formed to the horizontal restrain that conforms with corresponding antidetonation grade beam column core space spacing of stirrup legs.
The present invention can be widely used in the core area structure of reinforcement and reinforced column.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Fig. 1 is the beam-column connection that the former column section of embodiment mono-is not more than 450*450.
Fig. 2 is the plan view of beam column and former floor node.
Fig. 3 is the sectional view of Fig. 2.
Fig. 4 is that direction of the former column section of embodiment bis-is greater than 450 another directions and is not more than 450 beam-column connection.
Fig. 5 is the plan view of beam column and former floor node.
Fig. 6 is the sectional view of Fig. 5.
Fig. 7 is that the former column section both direction of embodiment tri-is all greater than 450 beam-column connections.
Fig. 8 is the plan view of beam column and former floor node.
Fig. 9 is the sectional view of Fig. 8.
The newly-increased post longitudinal reinforcement of the former post of Reference numeral: 1-, the former beam of 2-, the former floor of 3-, 4-core space concrete strengthening cover, 5-floor bar, 6-, 7-core space closed stirrup, 8-wear around the horizontal lacing wire of post, 13-around the vertical lacing wire of post, 9-crotch dowel, 10-anchoring adhesive, 11-branch sleeve, 12-that lacing hole, 14-are worn stirrup hole, 15-wears dowel hole.
Detailed description of the invention
Embodiment mono-is referring to shown in Fig. 1 to Fig. 3, a kind of reinforced concrete soil suite reinforcement post core area structure, be positioned at former post 1 and former beam 2 junctions, it is characterized in that: comprise core space concrete strengthening cover 4, described core space concrete strengthening overlaps the 4 interior four sides along former post 1 and is provided with and wears dowel hole 13, newly-increased post longitudinal reinforcement 6, be parallel to and wear dowel hole and overlap 4 marginal positions near core space concrete strengthening and have and wear stirrup hole 14, in described core space concrete strengthening cover 4, be provided with core space closed stirrup 7, core space closed stirrup 7 limbs are worn stirrup hole 14 in the sealing of the bight of core space, described around the vertical lacing wire 8 of post with around the horizontal lacing wire 12 two ends band crotches of post, wear respectively lacing hole 13, described around the vertical lacing wire 8 of post with bend towards and deviate from former post 1 one sides around the crotch of the horizontal lacing wire 12 of post, and with core space closed stirrup 7 drawknots, describedly wear stirrup hole 14 and wear the interior anchoring adhesive 10 that is all filled with of lacing hole 13, described newly-increased post longitudinal reinforcement 6 is through former floor 3 and to former floor 3 inner bendings, after bending, upper and lower two newly-increased post longitudinal reinforcements 6 connect.
Described former post 1 contact surface place is being provided with crotch dowel 9 without beam side and former beam and core space concrete strengthening cover Shang Xia 4, described crotch dowel 9 flat end are inserted wearing in stirrup hole 14 of offering on former post 1 or core space concrete strengthening cover 4, between gap filling have anchoring adhesive 10.Described around the vertical lacing wire 8 of post be 135 degree around the angle of the crotch of the horizontal lacing wire 12 of post.The thickness of described core space concrete strengthening cover 4 is not less than 150mm.Described core space closed stirrup 7 is for being formed by connecting by branch sleeve 11 by segmentation stirrup or butt welding is welded.Described core space closed stirrup 7, around the vertical lacing wire 8 of post be not less than 8mm around the diameter of the horizontal lacing wire 12 of post, spacing is not more than the requirement of corresponding antidetonation grade column tie-bar spacing.The described limb around the vertical lacing wire 8 of post is apart from being not more than 350mm.
Floor bar 5 in floor doubles as cuts mill reinforcing bar together with other newly-increased reinforcing bars, forms reliably and connects.
Embodiment bis-, referring to shown in Fig. 4 to Fig. 6, is applicable to direction of former column section and is not more than 450mm, and another direction is greater than 450mm.Different from embodiment mono-, be greater than at width on the limit of 450mm, two one end band crotch dowels 9 are set up on every limit, and the flat end of described crotch dowel 9 is inserted to be opened in and is worn dowel hole 15 on former post, band crotch end and core space closed stirrup 7 drawknots,
Embodiment tri-, referring to shown in Fig. 7 to Fig. 9, is applicable to the situation that former column section both direction is all greater than 450mm.Different from embodiment mono-is, two one end band crotch dowels 9 are all set up on Shang Mei limit, four limits, the flat end of described crotch dowel 9 is inserted to be opened in and is worn dowel hole 15 on former post, band crotch end and core space closed stirrup 7 drawknots, and the spacing of two crotch dowels 9 is not more than 350mm.
Claims (7)
1. a reinforced concrete soil suite reinforcement post core area structure, be positioned at former post (1) He Yuanliang (2) junction, it is characterized in that: comprise core space concrete strengthening cover (4), in described core space concrete strengthening cover (4), be provided with and wear dowel hole (13) along the four sides of former post (1), newly-increased post longitudinal reinforcement (6), be parallel to and wear dowel hole and have and wear stirrup hole (14) near core space concrete strengthening cover (4) marginal position, in described core space concrete strengthening cover (4), be provided with core space closed stirrup (7), core space closed stirrup (7) limb is worn stirrup hole (14) in the sealing of the bight of core space, described around the vertical lacing wire (8) of post with around the horizontal lacing wire of post (12) two ends band crotch, wear respectively lacing hole (13), described around the vertical lacing wire (8) of post with bend towards and deviate from former post (1) one side around the crotch of the horizontal lacing wire of post (12), and with core space closed stirrup (7) drawknot, described wear stirrup hole (14) and wear in lacing hole (13), be all filled with anchoring adhesive (10), described newly-increased post longitudinal reinforcement (6) is through former floor (3) and to former floor (3) inner bending, after bending, upper and lower two newly-increased post longitudinal reinforcements (6) connect.
2. reinforced concrete soil suite reinforcement post core area structure according to claim 1, it is characterized in that: described former post (1) is being provided with crotch dowel (9) without beam side and former beam and the upper and lower contact surface of core space concrete strengthening cover (4) place, described crotch dowel (9) flat end is inserted wearing in stirrup hole (14) of offering on former post (1) or core space concrete strengthening cover (4), between gap filling have anchoring adhesive (10).
3. reinforced concrete soil suite reinforcement post core area structure according to claim 1, is characterized in that: described around the vertical lacing wire (8) of post be 135 degree around the angle of the crotch of the horizontal lacing wire of post (12).
4. reinforced concrete soil suite reinforcement post core area structure according to claim 1, is characterized in that: the thickness of described core space concrete strengthening cover (4) is not less than 150mm.
5. reinforced concrete soil suite reinforcement post core area structure according to claim 1, it is characterized in that: described core space closed stirrup (7) is formed by connecting by branch sleeve (11) by segmentation stirrup, or described core space closed stirrup (7) is welded by the butt welding of segmentation stirrup.
6. reinforced concrete soil suite reinforcement post core area structure according to claim 1, it is characterized in that: described core space closed stirrup (7), around the vertical lacing wire (8) of post be not less than 8mm around the diameter of the horizontal lacing wire of post (12), spacing is not more than the requirement of corresponding antidetonation grade column tie-bar spacing.
7. reinforced concrete soil suite reinforcement post core area structure according to claim 1, is characterized in that: the described limb around the vertical lacing wire (8) of post is apart from being not more than 350mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210285842.7A CN102777052B (en) | 2012-08-13 | 2012-08-13 | Reinforced concrete jacket strengthening beam-column core area structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210285842.7A CN102777052B (en) | 2012-08-13 | 2012-08-13 | Reinforced concrete jacket strengthening beam-column core area structure |
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| Publication Number | Publication Date |
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| CN102777052A CN102777052A (en) | 2012-11-14 |
| CN102777052B true CN102777052B (en) | 2014-08-06 |
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| CN201210285842.7A Expired - Fee Related CN102777052B (en) | 2012-08-13 | 2012-08-13 | Reinforced concrete jacket strengthening beam-column core area structure |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775631A (en) * | 2015-02-16 | 2015-07-15 | 中交一航局第一工程有限公司 | Late-added concrete stand column construction method |
| CN106400956B (en) * | 2016-11-23 | 2019-01-22 | 福州大学 | A kind of beam-column joint of reinforced concrete frame ruggedized construction and its construction method |
| CN109914611A (en) * | 2019-04-12 | 2019-06-21 | 西安建筑科技大学 | It is a kind of to guarantee weak axis connection band Durchgangshohle reinforcing bar T-piece |
| CN110042986A (en) * | 2019-05-05 | 2019-07-23 | 上海建工七建集团有限公司 | The quick connecting node of beam column core space stirrup and its installation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2821036Y (en) * | 2005-08-19 | 2006-09-27 | 郑育新 | Frame beam hogging moment reinforced structure |
| CN201011136Y (en) * | 2007-03-16 | 2008-01-23 | 中国建筑科学研究院 | Steel stranded wire and polymer mortar combined strengthening structure |
| CN201539106U (en) * | 2009-07-24 | 2010-08-04 | 天地金草田（北京）科技有限公司 | Beam-column joint reinforced structure adopting enlarging section method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60140711D1 (en) * | 2000-04-28 | 2010-01-21 | Peter James | Method for reinforcing a structure |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2821036Y (en) * | 2005-08-19 | 2006-09-27 | 郑育新 | Frame beam hogging moment reinforced structure |
| CN201011136Y (en) * | 2007-03-16 | 2008-01-23 | 中国建筑科学研究院 | Steel stranded wire and polymer mortar combined strengthening structure |
| CN201539106U (en) * | 2009-07-24 | 2010-08-04 | 天地金草田（北京）科技有限公司 | Beam-column joint reinforced structure adopting enlarging section method |
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| CN102777052A (en) | 2012-11-14 |
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