CN102767142A - Bar planting construction method for widening and reinforcing reinforced concrete - Google Patents
Bar planting construction method for widening and reinforcing reinforced concrete Download PDFInfo
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- CN102767142A CN102767142A CN2012102807035A CN201210280703A CN102767142A CN 102767142 A CN102767142 A CN 102767142A CN 2012102807035 A CN2012102807035 A CN 2012102807035A CN 201210280703 A CN201210280703 A CN 201210280703A CN 102767142 A CN102767142 A CN 102767142A
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Abstract
The invention discloses a bar planting construction method for widening and reinforcing reinforced concrete. The bar planting construction method for widening and reinforcing the reinforced concrete is characterized by comprising the steps of: distributing the quantity of distributed drilling holes in old reinforced concrete according to reasonable anchoring parameters, determining the depth and diameter of each drilling hole to stress requirements, drilling the holes which need to be embedded with deformed steel bars or screw robs by drilling equipment, and thoroughly cleaning dust, collected water and oil in the holes after finishing hole driling; injecting high-strength structure glue of which the volume is 2/3 of hole volume into the hole, immediately planting the deformed steel bars or screw robs according with the design specification by a rotating mode, after the high-strength structure glue is completely condensed, carrying out a field drawing test on each anchored deformed steel bar or screw rod, and ensuring the bonding strength of the anchored glue body and the deformed steel bars or screw rods and pulling resistance are fully qualified; and firmly welding the deformed steel bars or screw rods with rebars on new reinforced concrete, then pouring the concrete, and forming an whole by the new and old reinforced concrete. The advantages of overall stress of the new and old reinforced concrete are achieved.
Description
Technical field
The present invention relates to when the concrete in road, bridge, house transformed, widen a kind of job practices that strengthening construction adopts, exactly is a kind of pore reinforced construction method that is used to widen reinforced steel concrete.
Background technology
Continuous propelling along with the Chinese Urbanization progress; The Traffic Net construction in city almost is with rapid changepl. never-ending changes and improvements, in the urban highway traffic planning construction, original street is transformed; The scheme of old bridge being widened strengthening construction can often occur; Old bridge is being widened when reinforcing operation, the steel concrete that to face a very big technical barrier be old bridge is a complete whole, and the steel concrete that need widen can be again an independent integral body; The concrete that the construction of two different times occurs can not melt and is holistic phenomenon; Bridge floor just can't evenly bear gravity, has so just lost the meaning of widening bridge floor, and can bring serious potential safety hazard to bridge.Therefore, the constructure scheme of old bridge being widened reinforcing is the problem of each designing unit and unit in charge of construction's research always.
Summary of the invention
The objective of the invention is to: a kind of a kind of pore reinforced construction method that is used to widen reinforced steel concrete is provided; Through high-strength structure glue screw-thread steel or screw rod are implanted in the old concrete structure; And concreting; Make young concrete and old concrete be connected to integral body, thereby reach common stressed purpose.
The objective of the invention is to realize through the enforcement following technical proposals:
Be used to widen a kind of pore reinforced construction method of reinforced steel concrete; It is characterized in that: the quantity of on old steel concrete, holing according to rational anchoring parameter distribution; Confirm the degree of depth of boring and the diameter in hole according to force request; Use the hole that rig gets out needs to implant screw-thread steel or screw rod, need dust, ponding and grease in the thorough clean-out opening after the completion boring; In the high-strength structure glue of injection hole capacity 2/3 in the hole, and in time implant screw-thread steel or the screw rod that meets design specifications, screw-thread steel or the screw rod can not disturbance in 24 hours implanted with rotation mode; After treating that high-strength structure glue is solidified fully, the screw-thread steel or the screw rod of every anchoring carried out on-the-spot drawing test experience, guarantee that the adhesion strength and the uplift resistance of colloid and screw-thread steel or screw rod of anchoring is qualified fully; In that the reinforcing bar on screw-thread steel or screw rod and the new steel concrete is firmly welded, carry out concreting then; Make new, old steel concrete form a complete whole.
Advantage of the present invention is: a kind of a kind of pore reinforced construction method that is used to widen reinforced steel concrete is provided; Through high-strength structure glue screw-thread steel or screw rod are implanted in the old concrete structure; And concreting; Make young concrete and old concrete be connected to integral body, thereby reach common stressed advantage.
Description of drawings
Fig. 1 overlooks and side view for the old steel concrete of the present invention;
Fig. 2 is old steel concrete of the present invention and new steel concrete plan structure figure;
Mark among the figure: 1 overlooks face for old steel concrete, and 2 is old steel concrete side-looking face, and 3 for needing to implant the hole of screw-thread steel or screw rod, 4 screw-thread steel or screw rods for implanting, and 5 is the reinforcing bar on the new steel concrete.
The specific embodiment
Embodiment: a kind of pore reinforced construction method that is used to widen reinforced steel concrete
It is characterized in that: the quantity of on old steel concrete 1, holing according to rational anchoring parameter distribution; Confirm the degree of depth of boring and the diameter in hole according to force request; Use the hole 3 that rig gets out needs to implant screw-thread steel or screw rod, need dust, ponding and grease in the thorough clean-out opening after the completion boring; In the high-strength structure glue of injection hole capacity 2/3 in the hole, and in time implant screw-thread steel or the screw rod 4 that meets design specifications, screw-thread steel or the screw rod 4 can not disturbance in 24 hours implanted with rotation mode; After treating that high-strength structure glue is solidified fully, the screw-thread steel or the screw rod 4 of every anchoring carried out on-the-spot drawing test experience, guarantee that the adhesion strength and the uplift resistance of colloid and screw-thread steel or screw rod 4 of anchoring is qualified fully; In that the reinforcing bar on screw-thread steel or screw rod 4 and new reinforcing bar 5 concrete is firmly welded, carry out concreting then; Make new, old steel concrete form a complete whole.
Carrying out injecting glue when operation, it is discarded that every bar planting glue should be extruded one section of termination, and after opening, should once one be used up.Injecting glue amount GPRS is accurate, and each injecting glue should begin at the bottom of the hole, and injecting glue generally should reach hole depth 2/3.The glue amount is crossed at least, and colloid inadequately completely causes adhesion strength not enough.The glue amount is too much, spills when inserting reinforcing bar, causes waste and pollution.
Test shows to the reinforcing bar resistance to plucking after implanting, and after the concrete of different labels is satisfied the bar planting degree of depth and requires, can reinforcing bar be pulled off.The bar planting material is anticorrosive, ageing-resistant, adhesion strength is much larger than concrete strength, and curing rate is fast, can make to implant reinforcing bar and bear the external force effect as early as possible.
The steel concrete in old road, bridge, house widened, transformed, when extending, the bar planting technology is the core in the whole reconstruction and extension project core.
Claims (1)
1. be used to widen a kind of pore reinforced construction method of reinforced steel concrete; It is characterized in that: go up quantity according to rational anchoring parameter distribution boring at old steel concrete (1); Confirm the degree of depth of boring and the diameter in hole according to force request; Use the hole (3) that rig gets out needs to implant screw-thread steel or screw rod, need dust, ponding and grease in the thorough clean-out opening after the completion boring; In the high-strength structure glue of injection hole capacity 2/3 in the hole, and in time implant screw-thread steel or the screw rod (4) that meets design specifications, screw-thread steel or the screw rod (4) can not disturbance in 24 hours implanted with rotation mode; After treating that high-strength structure glue is solidified fully, the screw-thread steel or the screw rod (4) of every anchoring carried out on-the-spot drawing test experience, guarantee that the adhesion strength and the uplift resistance of colloid and screw-thread steel or screw rod (4) of anchoring is qualified fully; In that the reinforcing bar on screw-thread steel or screw rod (4) and new reinforcing bar (5) concrete is firmly welded, carry out concreting then; Make new, old steel concrete form a complete whole, realize that new, old steel concrete integral body is stressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102807035A CN102767142A (en) | 2012-08-09 | 2012-08-09 | Bar planting construction method for widening and reinforcing reinforced concrete |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102807035A CN102767142A (en) | 2012-08-09 | 2012-08-09 | Bar planting construction method for widening and reinforcing reinforced concrete |
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| CN102767142A true CN102767142A (en) | 2012-11-07 |
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| CN2012102807035A Pending CN102767142A (en) | 2012-08-09 | 2012-08-09 | Bar planting construction method for widening and reinforcing reinforced concrete |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015469A (en) * | 2012-11-20 | 2013-04-03 | 中国石油天然气集团公司 | Bar planting technique |
| CN103967289A (en) * | 2014-04-23 | 2014-08-06 | 江苏建研建设工程质量安全鉴定有限公司 | Steel bar planting method and steel bar planting structure suitable for improving plain concrete post-installed fastening bearing capacity |
| CN105672144A (en) * | 2016-02-19 | 2016-06-15 | 湖南省交通规划勘察设计院 | Medium-small span old bridge reinforcement and jointing-widening structure and construction method thereof |
| CN106149643A (en) * | 2016-07-21 | 2016-11-23 | 葛洲坝集团试验检测有限公司 | A kind of closed type steel planting ruggedized construction and reinforcement means |
| CN107268461A (en) * | 2017-08-24 | 2017-10-20 | 中建五局土木工程有限公司 | The reinforcement means and ruggedized construction of a kind of existing elevated bridge |
| CN107905547A (en) * | 2017-10-16 | 2018-04-13 | 广州地铁设计研究院有限公司 | It is a kind of to existing building joint reinforcement structure and construction method |
| CN108505457A (en) * | 2018-04-16 | 2018-09-07 | 杭州屹方建筑科技有限公司 | A kind of method that steel flanged beam cemented rock arch bridge side wall is reinforced |
| CN109113368A (en) * | 2018-10-18 | 2019-01-01 | 中天建设集团有限公司 | A kind of double net pulling type shear walls and its reinforced construction method |
| CN109763668A (en) * | 2019-01-24 | 2019-05-17 | 铜陵有色金属集团铜冠建筑安装股份有限公司 | A kind of roof boarding aperture and reperforating method |
| CN111550077A (en) * | 2020-06-05 | 2020-08-18 | 中土大地国际建筑设计有限公司 | Fabricated anti-seismic reinforcing reconstruction structure and reconstruction construction method of existing building |
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| JP2011021384A (en) * | 2009-07-16 | 2011-02-03 | Sho-Bond Corp | Structure and method for widening road bridge |
| CN202227284U (en) * | 2011-05-25 | 2012-05-23 | 河南省九建工程有限公司 | Bridge widening split joint structure |
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Patent Citations (2)
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| JP2011021384A (en) * | 2009-07-16 | 2011-02-03 | Sho-Bond Corp | Structure and method for widening road bridge |
| CN202227284U (en) * | 2011-05-25 | 2012-05-23 | 河南省九建工程有限公司 | Bridge widening split joint structure |
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| 刘丽平: "桥梁改建中的植筋技术", 《林业科技情报》 * |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015469A (en) * | 2012-11-20 | 2013-04-03 | 中国石油天然气集团公司 | Bar planting technique |
| CN103967289A (en) * | 2014-04-23 | 2014-08-06 | 江苏建研建设工程质量安全鉴定有限公司 | Steel bar planting method and steel bar planting structure suitable for improving plain concrete post-installed fastening bearing capacity |
| CN103967289B (en) * | 2014-04-23 | 2016-01-13 | 江苏建研建设工程质量安全鉴定有限公司 | A kind ofly be applicable to the bar planting method and the bar planting structure that improve anchoring bearing capacity after plain concrete |
| CN105672144A (en) * | 2016-02-19 | 2016-06-15 | 湖南省交通规划勘察设计院 | Medium-small span old bridge reinforcement and jointing-widening structure and construction method thereof |
| CN105672144B (en) * | 2016-02-19 | 2017-07-28 | 湖南省交通规划勘察设计院有限公司 | A kind of medium-small span bridges are reinforced with spelling wide structure and its construction method |
| CN106149643A (en) * | 2016-07-21 | 2016-11-23 | 葛洲坝集团试验检测有限公司 | A kind of closed type steel planting ruggedized construction and reinforcement means |
| CN107268461A (en) * | 2017-08-24 | 2017-10-20 | 中建五局土木工程有限公司 | The reinforcement means and ruggedized construction of a kind of existing elevated bridge |
| CN107905547A (en) * | 2017-10-16 | 2018-04-13 | 广州地铁设计研究院有限公司 | It is a kind of to existing building joint reinforcement structure and construction method |
| CN108505457A (en) * | 2018-04-16 | 2018-09-07 | 杭州屹方建筑科技有限公司 | A kind of method that steel flanged beam cemented rock arch bridge side wall is reinforced |
| CN109113368A (en) * | 2018-10-18 | 2019-01-01 | 中天建设集团有限公司 | A kind of double net pulling type shear walls and its reinforced construction method |
| CN109763668A (en) * | 2019-01-24 | 2019-05-17 | 铜陵有色金属集团铜冠建筑安装股份有限公司 | A kind of roof boarding aperture and reperforating method |
| CN111550077A (en) * | 2020-06-05 | 2020-08-18 | 中土大地国际建筑设计有限公司 | Fabricated anti-seismic reinforcing reconstruction structure and reconstruction construction method of existing building |
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Application publication date: 20121107 |