CN102351482B - Grouting material and perfusion of same into enclosed steel die for reinforcement of steel concrete beams and columns - Google Patents
Grouting material and perfusion of same into enclosed steel die for reinforcement of steel concrete beams and columns Download PDFInfo
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- CN102351482B CN102351482B CN 201110181161 CN201110181161A CN102351482B CN 102351482 B CN102351482 B CN 102351482B CN 201110181161 CN201110181161 CN 201110181161 CN 201110181161 A CN201110181161 A CN 201110181161A CN 102351482 B CN102351482 B CN 102351482B
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Abstract
The invention provides a grouting material and perfusion of the same into an enclosed steel die for reinforcement of steel concrete beams and columns, and relates to grouting materials and perfusion of the same into steel dies for reinforcement of steel concrete beams and columns. The invention is aimed to overcome the problem that compact pouring of concrete is difficult to realize when original concrete beams and columns are reinforced by using the method of enlarging sections. The grouting material is prepared by mixing P.052.5 ordinary Portland cement, a UEA expanding agent, an FDN high efficiency water reducing agent and water. According to the invention, stirrups are arranged below an original steel concrete beam and are fixedly connected with the original steel concrete beam through first connecting steel bars, loaded steel bars are fixedly connected with a bearer of the original steel concrete beam through second connecting steel bars, a U-shaped channel steel die is fixedly sleeved on the steel bars and the original steel concrete beam; anchor bolts are fixedly connected with the original steel concrete column, the loaded steel bars are arranged at external sides of the original steel concrete column and are strapped by the stirrups, the loaded steel bars are in fixed connection with an upper bearer and a lower bearer of the original steel concrete column through the first and second connecting steel bars, steel templates are cladded over the stirrups, and the grouting material is perfused into an enclosed perfusion cavity. The invention is applicable to reinforcement of steel concrete beams and columns.
Description
Technical field
The present invention relates to a kind of grouting material perfusion punching block reinforcement of rc beam and post of utilizing, belong to civil engineering work reinforcement technique field.
Background technology
At present, the normal method that adopts increasing section in reinforced beam and the Reinforced Concrete Reinforcement.Enlargement of Section normally arranges wooden form or bamboo silk template behind former cross-sectional circumference assembling reinforcement skeleton, casting concrete then, and after the concrete knot is hard, form removal.But the sectional dimension that often runs into beam, the required increase of post in Practical Project is limited, and the coarse aggregate during casting concrete in the concrete is difficult to enter former member and die clearance, concrete and is difficult to build closely knit and the problem such as be difficult to vibrate.
Summary of the invention
The purpose of this invention is to provide a kind of grouting material that utilizes and pour into airtight punching block reinforcement of rc beam and post, solve adopting traditional Enlargement of Section in the process of reinforcing the limited beams of concrete of required increase size and concrete column, coarse aggregate is difficult to enter former member and die clearance, concrete and is difficult to build closely knit and the problem such as be difficult to vibrate.
The present invention solves the problems of the technologies described above the technical scheme of taking to be respectively:
Grouting material of the present invention, described grouting material is mixed by P.O52.5 ordinary Portland cement, UEA swelling agent, FDN high efficiency water reducing agent and water, wherein the weight ratio of P.O52.5 ordinary Portland cement and water is 1:0.3 ~ 0.5, the weight of UEA swelling agent accounts for 6 ~ 8% of P.O52.5 ordinary Portland cement weight, and the weight of FDN high efficiency water reducing agent accounts for 0.6 ~ 0.8% of P.O52.5 ordinary Portland cement weight.
Utilize the airtight punching block reinforcement of rc beam of grouting material perfusion welding, the airtight punching block reinforcement of rc beam of described grouting material perfusion welding comprises U-lag punching block, a plurality of stirrup, many steel bar stresses, many first connecting reinforcements, many second connecting reinforcements and a plurality of nailing or a plurality of crab-bolt, and the angle of cut that becomes between the groove bottom of U-lag punching block and the groove sidewall is the right angle; A plurality of stirrups be arranged on former reinforced beam under, and a plurality of stirrups equidistantly are set up in parallel along the length direction of former reinforced beam, the one end overlap joint welding of the upper end of each stirrup and the first connecting reinforcement, the other end of this first connecting reinforcement passes fixing the implantation in the former reinforced beam of bottom face of former reinforced beam, many steel bar stresses are along the length direction setting of former reinforced beam and pass successively a plurality of stirrups, each is corresponding with second connecting reinforcement at the two ends of every steel bar stress, the two ends of every steel bar stress each with the end overlap joint welding of corresponding the second connecting reinforcement, the other end of this second connecting reinforcement is fixing to be implanted in the corresponding former beam support, the U-lag punching block is sleeved on a plurality of stirrups and the former reinforced beam, the two side of the two side of U-lag punching block and former reinforced beam length direction is all affixed by a plurality of nailings or a plurality of crab-bolt, former reinforced beam, the inner chamber that forms between U-lag punching block and two the former beam supports is closed filling cavity, the upper end of one sidewall of U-lag punching block is provided with the grouting hole that communicates with closed filling cavity, described closed perfusion intra-bladder instillation grouting material.
Utilize the airtight punching block reinforced steel concrete post of grouting material perfusion welding, the airtight punching block reinforced steel concrete post of described grouting material perfusion welding comprises Sheet Steel Form, many steel bar stresses, a plurality of stirrup, many first connecting reinforcements, many second connecting reinforcements and a plurality of crab-bolts; A plurality of crab-bolts and shape of cross section are that four sidewalls of former Steel Concrete post of rectangle are vertical affixed, and a plurality of crab-bolts are along four uniform settings of sidewall of this former Steel Concrete post, many steel bar stresses vertically arrange, and many uniform outsides that are arranged on four sidewalls of this former Steel Concrete post of steel bar stress, the equidistant colligation from top to bottom of a plurality of stirrups is on the outer side of described many steel bar stresses, the upper end of many steel bar stresses and the one by one corresponding setting of many first connecting reinforcements, the one end overlap joint welding of the upper end of every steel bar stress and corresponding the first connecting reinforcement, the other end of every the first connecting reinforcement is fixing to be implanted in the former post upper bracket, the lower end of many steel bar stresses and the one by one corresponding setting of many second connecting reinforcements, the one end overlap joint welding of the lower end of every steel bar stress and corresponding the second connecting reinforcement, the other end of every the second connecting reinforcement is fixing to be implanted in the former post undersetting, Sheet Steel Form is coated on the outer side wall of a plurality of stirrups, it is the punching block of rectangle that the corresponding both sides end face welding of Sheet Steel Form consists of cross section, the punching block that described cross section is rectangle and former Steel Concrete post, the inner chamber that forms between former post upper bracket and the former post undersetting is closed filling cavity, the upper end of one sidewall of the punching block that described cross section is rectangle is provided with the grouting hole that communicates with this closed filling cavity, described closed perfusion intra-bladder instillation grouting material.
The present invention has following beneficial effect: the present invention proposes the assembling reinforcement outside former member (the former beam of Steel Concrete and the former post of Steel Concrete) of a kind of elder generation, the airtight punching block of welding is set in its periphery again, pour at last the reinforcement technique of grouting material of the present invention (cement based), be referred to as to weld airtight punching block grouting reinforcement technique.This novel reinforced technology is compared with the Enlargement of Section reinforcement technique of routine, and the obturation effect that welds airtight punching block is better, can guarantee in the construction process not spillage, and need not after the construction to remove, and easy construction is saved the duration.Compare with concrete, not only intensity is high for the strength cement-based grouting material that adopts (this strength cement-based grouting material substitutes conventional concrete and builds), and good fluidity, and non-coarse aggregate in its composition can reach the good effect of building at without vibration or under slightly vibrating.Therefore, the present invention has easy construction, saves the duration, and therefore the characteristics that consolidation effect is good have widely suitability.
Description of drawings
Fig. 1 is the front view that utilizes the airtight punching block reinforced concrete beam of grouting material perfusion welding, and Fig. 2 is the A-A sectional view of Fig. 1, and Fig. 3 is the front view that utilizes the airtight punching block reinforced concrete column of grouting material perfusion welding, and Fig. 4 is the B-B sectional view of Fig. 3.
Embodiment
Embodiment one: the grouting material of present embodiment is mixed by P.O52.5 ordinary Portland cement, UEA swelling agent, FDN high efficiency water reducing agent and water, wherein the weight ratio of P.O52.5 ordinary Portland cement and water is 1:0.3 ~ 0.5, the weight of UEA swelling agent accounts for 6 ~ 8% of P.O52.5 ordinary Portland cement weight, and the weight of FDN high efficiency water reducing agent accounts for 0.6 ~ 0.8% of P.O52.5 ordinary Portland cement weight.
Embodiment two: the weight ratio of the described P.O52.5 ordinary Portland cement of present embodiment and water is 1:0.4, the weight of UEA swelling agent accounts for 7% of P.O52.5 ordinary Portland cement weight, and the weight of FDN high efficiency water reducing agent accounts for 0.7% of P.O52.5 ordinary Portland cement weight.Intensity is high, good fluidity.Other is identical with embodiment one.
Embodiment three: in conjunction with Fig. 1 and Fig. 2 explanation, present embodiment is utilized embodiment one or two the airtight punching block reinforcement of rc beam of grouting material perfusion welding, the airtight punching block reinforcement of rc beam of described grouting material perfusion welding comprises U-lag punching block 5, a plurality of stirrup 8, many steel bar stresses 4, many first connecting reinforcements 9, many second connecting reinforcements 6 and a plurality of nailing or a plurality of crab-bolt 10, and the angle of cut that becomes between the groove bottom of U-lag punching block 5 and the groove sidewall is the right angle; A plurality of stirrups 8 be arranged on former reinforced beam 2 under, and a plurality of stirrups 8 equidistantly are set up in parallel along the length direction of former reinforced beam 2, the one end overlap joint welding of the upper end of each stirrup 8 and the first connecting reinforcement 9, the other end of this first connecting reinforcement 9 passes the fixing former reinforced beam 2 interior (quantity of the first connecting reinforcement 9 is determined by design) of implanting of bottom face of former reinforced beam 2, many steel bar stresses 4 are along the length direction setting of former reinforced beam 2 and pass successively a plurality of stirrups 8, each is corresponding with second connecting reinforcement 6 at the two ends of every steel bar stress 4, the two ends of every steel bar stress 4 each with the end overlap joint welding of corresponding the second connecting reinforcement 6, the other end of this second connecting reinforcement 6 is fixing to be implanted in the corresponding former beam support 3, U-lag punching block 5 is sleeved on a plurality of stirrups 8 and the former reinforced beam 2, the two side of the two side of U-lag punching block 5 and former reinforced beam 2 length directions is all affixed by a plurality of nailings or a plurality of crab-bolt 10, former reinforced beam 2, the inner chamber that forms between U-lag punching block 5 and two the former beam supports 3 is closed filling cavity 11, the upper end of one sidewall of U-lag punching block 5 is provided with the grouting hole 13 that communicates with closed filling cavity 11, described closed filling cavity 11 interior perfusion grouting materials.
Each former beam support 3 corresponding with one of the two ends of the former reinforced beam 2 in the present embodiment is affixed, and former beam support 3 is former Steel Concrete post or body of wall, belongs to prior art.
The height of the former reinforced beam 2 in the present embodiment is that the thickness of h1(floor 15 is included), the height of the reinforced beam that increases newly is h2, the value of the height h2 of the reinforced beam that increases newly is determined according to design.
Embodiment four: the described U-lag punching block 5 of present embodiment is formed by the steel sheet bending.Other is identical with embodiment three.
Embodiment five: described steel-sheet thickness of slab is 3 ~ 5mm.Design can be satisfied requirement of strength like this.Other is identical with embodiment three.
Embodiment six: in conjunction with Fig. 3 and Fig. 4 explanation, present embodiment is utilized embodiment one or two the airtight punching block reinforced steel concrete post of grouting material perfusion welding, and the airtight punching block reinforced steel concrete post of described grouting material perfusion welding comprises Sheet Steel Form 7, many steel bar stresses 4, a plurality of stirrup 8, many first connecting reinforcements 9, many second connecting reinforcements 6 and a plurality of crab-bolt 10; A plurality of crab-bolts 10 and shape of cross section are that four sidewalls of former Steel Concrete post 1 of rectangle are vertical affixed, and a plurality of crab-bolts 10 are along four uniform settings of sidewall of this former Steel Concrete post 1, many steel bar stresses 4 vertically arrange, and many steel bar stress 4 uniform outsides that are arranged on four sidewalls of this former Steel Concrete post 1, a plurality of stirrups 8 are equidistant colligation (quantity of steel bar stress 4 on the outer side of described many steel bar stresses 4 from top to bottom, a plurality of stirrup 8 quantity are determined according to design), the upper end of many steel bar stresses 4 and the one by one corresponding setting of many first connecting reinforcements 9, the one end overlap joint welding of the upper end of every steel bar stress 4 and corresponding the first connecting reinforcement 9, the other end of every the first connecting reinforcement 9 is fixing to be implanted in the former post upper bracket 12, the lower end of many steel bar stresses 4 and the one by one corresponding setting of many second connecting reinforcements 6, the one end overlap joint welding of the lower end of every steel bar stress 4 and corresponding the second connecting reinforcement 6, the other end of every the second connecting reinforcement 6 is fixing to be implanted in the former post undersetting 16, Sheet Steel Form 7 is coated on the outer side wall of a plurality of stirrups 8, it is the punching block of rectangle that the corresponding both sides end face welding of Sheet Steel Form 7 consists of cross section, the punching block that described cross section is rectangle and former Steel Concrete post 1, the inner chamber that forms between former post upper bracket 12 and the former post undersetting 16 is closed filling cavity 11, the upper end of one sidewall of the punching block that described cross section is rectangle is provided with the grouting hole 13 that communicates with this closed filling cavity 11, described closed filling cavity 11 interior perfusion grouting materials.
Each is affixed with former post upper bracket 12 and former post undersetting 16 at the up and down two ends of the former Steel Concrete post 1 in the present embodiment, and former post upper bracket 12 and former post undersetting 16 are former reinforced beam or floor, belong to prior art.
Embodiment seven: the thickness of the described Sheet Steel Form 7 of present embodiment is 3 ~ 5mm.Design can be satisfied requirement of strength like this.Other is identical with embodiment one.
Claims (5)
1. one kind is utilized the airtight punching block reinforcement of rc beam of grouting material perfusion welding, described grouting material is mixed by P.O52.5 ordinary Portland cement, UEA swelling agent, FDN high efficiency water reducing agent and water, wherein the weight ratio of P.O52.5 ordinary Portland cement and water is 1:0.3 ~ 0.5, the weight of UEA swelling agent accounts for 6 ~ 8% of P.O52.5 ordinary Portland cement weight, and the weight of FDN high efficiency water reducing agent accounts for 0.6 ~ 0.8% of P.O52.5 ordinary Portland cement weight; It is characterized in that: the airtight punching block reinforcement of rc beam of described grouting material perfusion welding comprises U-lag punching block (5), a plurality of stirrup (8), many steel bar stresses (4), many first connecting reinforcements (9), many second connecting reinforcements (6) and a plurality of nailing or a plurality of crab-bolt (10), and the angle of cut that becomes between the groove bottom of U-lag punching block (5) and the groove sidewall is the right angle; A plurality of stirrups (8) be arranged on former reinforced beam (2) under, and a plurality of stirrups (8) equidistantly are set up in parallel along the length direction of former reinforced beam (2), the one end overlap joint welding of the upper end of each stirrup (8) and the first connecting reinforcement (9), the other end of this first connecting reinforcement (9) passes fixing the implantation in the former reinforced beam (2) of bottom face of former reinforced beam (2), many steel bar stresses (4) also pass a plurality of stirrups (8) successively along the length direction setting of former reinforced beam (2), each is corresponding with second connecting reinforcement (6) at the two ends of every steel bar stress (4), the two ends of every steel bar stress (4) each with the end overlap joint welding of corresponding the second connecting reinforcement (6), the other end of this second connecting reinforcement (6) is fixing to be implanted in the corresponding former beam support (3), U-lag punching block (5) is sleeved on a plurality of stirrups (8) and the former reinforced beam (2), the two side of the two side of U-lag punching block (5) and former reinforced beam (2) length direction is all affixed by a plurality of nailings or a plurality of crab-bolt (10), former reinforced beam (2), the inner chamber that forms between U-lag punching block (5) and two the former beam supports (3) is closed filling cavity (11), the upper end of one sidewall of U-lag punching block (5) is provided with the grouting hole (13) that communicates with closed filling cavity (11), perfusion grouting material in the described closed filling cavity (11).
2. the grouting material that utilizes according to claim 1 pours into the airtight punching block reinforcement of rc beam of welding, and it is characterized in that: described U-lag punching block (5) is formed by the steel sheet bending.
3. the grouting material that utilizes according to claim 2 pours into the airtight punching block reinforcement of rc beam of welding, and it is characterized in that: described steel-sheet thickness of slab is 3 ~ 5mm.
4. one kind is utilized the airtight punching block reinforced steel concrete post of grouting material perfusion welding, described grouting material is mixed by P.O52.5 ordinary Portland cement, UEA swelling agent, FDN high efficiency water reducing agent and water, wherein the weight ratio of P.O52.5 ordinary Portland cement and water is 1:0.3 ~ 0.5, the weight of UEA swelling agent accounts for 6 ~ 8% of P.O52.5 ordinary Portland cement weight, and the weight of FDN high efficiency water reducing agent accounts for 0.6 ~ 0.8% of P.O52.5 ordinary Portland cement weight; It is characterized in that: the airtight punching block reinforced steel concrete post of described grouting material perfusion welding comprises Sheet Steel Form (7), many steel bar stresses (4), a plurality of stirrup (8), many first connecting reinforcements (9), many second connecting reinforcements (6) and a plurality of crab-bolt (10); A plurality of crab-bolts (10) and shape of cross section are that four sidewalls of former Steel Concrete post (1) of rectangle are vertical affixed, and a plurality of crab-bolts (10) are along four uniform settings of sidewall of this former Steel Concrete post (1), many steel bar stresses (4) vertically arrange, and the uniform outside that is arranged on four sidewalls of this former Steel Concrete post (1) of many steel bar stresses (4), a plurality of stirrups (8) equidistant colligation from top to bottom is on the outer side of described many steel bar stresses (4), the upper end of many steel bar stresses (4) and one by one corresponding setting of many first connecting reinforcements (9), the one end overlap joint welding of the upper end of every steel bar stress (4) and corresponding the first connecting reinforcement (9), the other end of every the first connecting reinforcement (9) is fixing to be implanted in the former post upper bracket (12), the lower end of many steel bar stresses (4) and many second connecting reinforcements (6)--corresponding setting, the one end overlap joint welding of the lower end of every steel bar stress (4) and corresponding the second connecting reinforcement (6), the other end of every the second connecting reinforcement (6) is fixing to be implanted in the former post undersetting (16), Sheet Steel Form (7) is coated on the outer side wall of a plurality of stirrups (8), it is the punching block of rectangle that the corresponding both sides end face welding of Sheet Steel Form (7) consists of cross section, described cross section is punching block and the former Steel Concrete post (1) of rectangle, the inner chamber that forms between former post upper bracket (12) and the former post undersetting (16) is closed filling cavity (11), the upper end of one sidewall of the punching block that described cross section is rectangle is provided with the grouting hole (13) that communicates with this closed filling cavity (11), perfusion grouting material in the described closed filling cavity (11).
5. the grouting material that utilizes according to claim 4 pours into the airtight punching block reinforced steel concrete post of welding, and it is characterized in that: the thickness of described Sheet Steel Form (7) is 3 ~ 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110181161 CN102351482B (en) | 2011-06-30 | 2011-06-30 | Grouting material and perfusion of same into enclosed steel die for reinforcement of steel concrete beams and columns |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110181161 CN102351482B (en) | 2011-06-30 | 2011-06-30 | Grouting material and perfusion of same into enclosed steel die for reinforcement of steel concrete beams and columns |
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| Publication Number | Publication Date |
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| CN102351482A CN102351482A (en) | 2012-02-15 |
| CN102351482B true CN102351482B (en) | 2013-03-06 |
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| CN 201110181161 Expired - Fee Related CN102351482B (en) | 2011-06-30 | 2011-06-30 | Grouting material and perfusion of same into enclosed steel die for reinforcement of steel concrete beams and columns |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859356A (en) * | 2017-11-30 | 2018-03-30 | 河南省电力勘测设计院 | A kind of cold reinforcement by connection method of simple bending H profile steel beam |
| CN108396986A (en) * | 2018-05-10 | 2018-08-14 | 上海建工二建集团有限公司 | reinforced structure and construction method of overlapped prefabricated L-shaped prestressed rib beam plate |
| CN109775559B (en) * | 2018-07-23 | 2020-06-02 | 安徽省雄峰起重机械有限公司 | Crane beam for crane |
| CN110872906A (en) * | 2018-09-04 | 2020-03-10 | 杭州固力建筑工程有限公司 | Method for reinforcing single-side section of concrete beam |
| CN111441583A (en) * | 2019-01-17 | 2020-07-24 | 柏诚工程股份有限公司 | Grouting method for enlarging cross section of frame column |
| CN111411791A (en) * | 2020-01-21 | 2020-07-14 | 武大巨成结构股份有限公司 | Existing foundation upper and lower column connecting structure and method for expanding underground space |
| CN113216677B (en) * | 2021-04-08 | 2023-02-10 | 河南征信建筑工程有限公司 | Simple high-strength structural column reinforcing mechanism and method |
| CN114893012B (en) * | 2022-05-07 | 2023-07-18 | 浙江翰达工程检测有限公司 | Reset method for reinforced concrete column |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4693046A (en) * | 1985-05-13 | 1987-09-15 | Yoshihiro Murayama | Method of constructing floor for buildings or similar structures |
| CN1151980A (en) * | 1996-11-20 | 1997-06-18 | 长江水利委员会长江科学院 | Early-strength grouting material for rock anchoring and grout producing process |
| CN100393969C (en) * | 2006-03-08 | 2008-06-11 | 哈尔滨工业大学 | Ribbed concrete column with built-in high-strength or super-strength concrete core column |
| CN101457592A (en) * | 2008-11-20 | 2009-06-17 | 江苏广宇建设集团有限公司 | Concrete structure affixing steel plate reinforcement method |
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