CN105297919A - Seismic strengthening method for frame beam-column joint core area - Google Patents
Seismic strengthening method for frame beam-column joint core area Download PDFInfo
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- CN105297919A CN105297919A CN201510734782.6A CN201510734782A CN105297919A CN 105297919 A CN105297919 A CN 105297919A CN 201510734782 A CN201510734782 A CN 201510734782A CN 105297919 A CN105297919 A CN 105297919A
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- stirrup
- muscle
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- steel bar
- stirrup cover
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Abstract
The invention discloses a seismic strengthening method for a frame beam-column joint core area. The method comprises the following steps that firstly, an integrated stirrup sleeve is prefabricated; secondly, main column ribs, beam bottom column stirrups and beam lower portion longitudinal ribs are installed; thirdly, the integrated stirrup sleeve is installed; fourthly, beam upper portion longitudinal ribs and waist ribs are installed. By means of the method, the integrated stirrup sleeve is prefabricated first and then integrally installed on site, and thus compared with an existing method, the method has the advantages that construction is easy, and operation is convenient; the requirement for seismic performance and construction quality in the frame beam-column joint core area can be effectively met, and the quality problem brought by the construction difficulty of the traditional binding technology can be effectively solved.
Description
Technical field
The present invention relates to construction work middle frame beam column construction field, specifically relate to a kind of concrete frame joint core space Shockproof reinforcing method.
Background technology
At present, because China's structure design is relatively conservative, Vierendeel girder, Column border node core space reinforcing bar are overstocked, reinforcing bar binding difficulty is larger, consider dodging between reinforcing bar, stirrup spacing, quantity and colligation difficult quality guarantee, add operator's weak quality consciousness, if strictly do not monitored this region stirrup colligation quality, easily leak and tie up.Frame joint core space transmits node, anti-seismic performance weakness zone as beam, post internal force, when earthquake occurs, if this region anti-seismic construction measure is not in place, very easily causes destructive destruction.
Summary of the invention
For the technical problem existed in prior art, the object of the present invention is to provide a kind of concrete frame joint core space Shockproof reinforcing method.
To achieve these goals, the technical solution adopted in the present invention is: a kind of concrete frame joint core space Shockproof reinforcing method, comprises the following steps:
S1, overall stirrup cover is prefabricated: choose the equal steel bar end of four length as skeleton, four steel bar end peripheries are set in by equidistant for the some foursquare stirrup cover made, and by four each reserved 10cm in steel bar end two ends, the corner, inner side that steel bar end overlaps with stirrup is respectively fixed by spot welding;
The main muscle of S2, post, beam foundation stirrup and beam bottom are indulged muscle and are installed: muscle is indulged in the main muscle of erection column, beam foundation stirrup and beam bottom, and the beam bottom after installing is indulged muscle insertion column cap and fixed;
S3, overall stirrup cover is installed: prefabricated overall stirrup cover is set in the main muscle periphery of post, and stirrup cover bottom flushes with at the bottom of beam, finally 10cm steel bar end reserved for two ends and the main muscle spot welding of post is fixed;
S4, beam upper longitudinal bar and waist muscle are installed: overall stirrup cover installs beam upper longitudinal bar and waist muscle after installing and fixing successively.
Preferably, in step S1 when making stirrup cover, the angle of bend of the crotch of stirrup cover is 135 °, and hook length is the greater in 10d and 75mm, and d is the bar diameter making stirrup cover.
Preferably, in step S1 steel bar end and stirrup overlap the spot welding of corner, inner side time, selected wlding strength grade is not less than strength of parent grade, by through examining professional welder that is qualified, that take appointment with certificate to operate, guarantees that weld seam is full, welding defect.
Beneficial effect of the present invention shows:
The method that the present invention proposes, by first precast monolithic stirrup cover, integral installation at the scene again, it is than existing method, there is the advantage that construction is simple, easy to operate, effectively can meet Vierendeel girder, Column border node core space anti-seismic performance and construction quality, effectively can avoid the quality problems brought because of traditional technology for binding difficulty of construction.
Accompanying drawing explanation
Fig. 1 is the schematic diagram after step S3 completes.
Detailed description of the invention
For further describing the present invention, below in conjunction with embodiment, it is described further.
As shown in Figure 1, a kind of concrete frame joint core space Shockproof reinforcing method, comprises the following steps:
S1, overall stirrup overlap 1 prefabricated: choose the equal steel bar end 2 of four length as skeleton, the some foursquare stirrup made is overlapped 1 and be equidistantly set in four steel bar end 2 peripheries, and by four each reserved 10cm in steel bar end 2 two ends, the corner, inner side steel bar end 2 being overlapped respectively 1 with stirrup is fixed by spot welding, when making stirrup and overlapping 1, the angle of bend of the crotch of stirrup cover 1 is 135 °, and hook length is the greater in 10d and 75mm, and d is the bar diameter making stirrup cover 1.When steel bar end 2 and stirrup overlap corner, the inner side spot welding of 1, selected wlding strength grade is not less than strength of parent grade, by through examining professional welder that is qualified, that take appointment with certificate to operate, guarantees that weld seam is full, welding defect.
The main muscle of S2, post 3, beam foundation stirrup and beam bottom are indulged muscle and are installed: muscle is indulged in the main muscle 3 of erection column, beam foundation stirrup and beam bottom, and the beam bottom after installing is indulged muscle insertion column cap and fixed.
S3, overall stirrup cover 1 is installed: prefabricated overall stirrup cover 1 is set in post main muscle 3 periphery, and stirrup cover 1 bottom flushes with at the bottom of beam, is finally fixed with the spot welding of post main muscle 3 by 10cm steel bar end 2 reserved for two ends.
S4, beam upper longitudinal bar and waist muscle are installed: overall stirrup cover 1 installs beam upper longitudinal bar and waist muscle after installing and fixing successively.
The present invention proposes a kind of concrete frame joint core space Shockproof reinforcing method, the present invention propose method adopt be Vierendeel girder, Column border node core space anti-seismic construction adopt column cap overall stirrup cover is installed, overall stirrup cover is on-the-spot pre-formed, the construction technology that then integral installation puts in place, thus reach beam, Column border node core space antidetonation working measure specification, standard, meet shockproof requirements.
Above content is only to design example of the present invention and explanation; affiliated those skilled in the art make various amendment to described specific embodiment or supplement or adopt similar mode to substitute; only otherwise depart from the design of invention or surmount this scope as defined in the claims, protection scope of the present invention all should be belonged to.
Claims (3)
1. a concrete frame joint core space Shockproof reinforcing method, is characterized in that, comprises the following steps:
S1, overall stirrup cover (1) are prefabricated: choose the equal steel bar end (2) of four length as skeleton, four steel bar end (2) peripheries are set in by equidistant for the some foursquare stirrup cover (1) made, and by four each reserved 10cm in steel bar end (2) two ends, steel bar end (2) is fixed by spot welding with the corner, inner side of stirrup cover (1) respectively;
The main muscle of S2, post (3), beam foundation stirrup and beam bottom are indulged muscle and are installed: muscle is indulged in the main muscle of erection column (3), beam foundation stirrup and beam bottom, and the beam bottom after installing is indulged muscle insertion column cap and fixed;
S3, overall stirrup cover (1) are installed: prefabricated overall stirrup cover (1) is set in the main muscle of post (3) periphery, and stirrup cover (1) bottom flushes with at the bottom of beam, are finally fixed with the main muscle of post (3) spot welding by 10cm steel bar end (2) reserved for two ends;
S4, beam upper longitudinal bar and waist muscle are installed: the installation of overall stirrup cover (1) installs beam upper longitudinal bar and waist muscle after fixing successively.
2. concrete frame joint core space Shockproof reinforcing method according to claim 1, it is characterized in that, in step S1 when making stirrup cover (1), the angle of bend of the crotch of stirrup cover (1) is 135 °, hook length is the greater in 10d and 75mm, and d is the bar diameter making stirrup cover (1).
3. concrete frame joint core space Shockproof reinforcing method according to claim 1, it is characterized in that, in step S1 during corner, the inner side spot welding of steel bar end (2) and stirrup cover (1), selected wlding strength grade is not less than strength of parent grade, by through examining professional welder that is qualified, that take appointment with certificate to operate, guarantee that weld seam is full, welding defect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510734782.6A CN105297919A (en) | 2015-10-30 | 2015-10-30 | Seismic strengthening method for frame beam-column joint core area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510734782.6A CN105297919A (en) | 2015-10-30 | 2015-10-30 | Seismic strengthening method for frame beam-column joint core area |
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| Publication Number | Publication Date |
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| CN105297919A true CN105297919A (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510734782.6A Pending CN105297919A (en) | 2015-10-30 | 2015-10-30 | Seismic strengthening method for frame beam-column joint core area |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729645A (en) * | 2017-04-18 | 2018-11-02 | 五冶集团上海有限公司 | Pre-fabricated one beam column core space reinforcing bar binding construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06136881A (en) * | 1991-02-22 | 1994-05-17 | Shimizu Corp | Split type previously assembled beam reinforcement and method of assembling construction of split type previously assembled beam reinforcement |
| CN102352655A (en) * | 2011-07-28 | 2012-02-15 | 华南理工大学 | Multi-floor type rectangular steel pipe concrete column and floor system beam connecting node and manufacturing method thereof |
| CN202483073U (en) * | 2012-03-22 | 2012-10-10 | 中国建筑第四工程局有限公司 | Quake-proof beam-column node column hoop structure |
| CN203238780U (en) * | 2013-03-12 | 2013-10-16 | 中国水利水电第二工程局有限公司 | Prefabricated stirrup cage of beam column core area |
| CN203808249U (en) * | 2014-01-16 | 2014-09-03 | 北京天润建设有限公司 | Column stirrup cage assembly for beam-column joint core region |
-
2015
- 2015-10-30 CN CN201510734782.6A patent/CN105297919A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06136881A (en) * | 1991-02-22 | 1994-05-17 | Shimizu Corp | Split type previously assembled beam reinforcement and method of assembling construction of split type previously assembled beam reinforcement |
| CN102352655A (en) * | 2011-07-28 | 2012-02-15 | 华南理工大学 | Multi-floor type rectangular steel pipe concrete column and floor system beam connecting node and manufacturing method thereof |
| CN202483073U (en) * | 2012-03-22 | 2012-10-10 | 中国建筑第四工程局有限公司 | Quake-proof beam-column node column hoop structure |
| CN203238780U (en) * | 2013-03-12 | 2013-10-16 | 中国水利水电第二工程局有限公司 | Prefabricated stirrup cage of beam column core area |
| CN203808249U (en) * | 2014-01-16 | 2014-09-03 | 北京天润建设有限公司 | Column stirrup cage assembly for beam-column joint core region |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729645A (en) * | 2017-04-18 | 2018-11-02 | 五冶集团上海有限公司 | Pre-fabricated one beam column core space reinforcing bar binding construction method |
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Application publication date: 20160203 |
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