CN102351482A - 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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- CN102351482A CN102351482A CN2011101811611A CN201110181161A CN102351482A CN 102351482 A CN102351482 A CN 102351482A CN 2011101811611 A CN2011101811611 A CN 2011101811611A CN 201110181161 A CN201110181161 A CN 201110181161A CN 102351482 A CN102351482 A CN 102351482A
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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 and, belong to civil engineering work reinforcement technique field with this grouting material perfusion punching block reinforcement of rc beam and post.
Background technology
At present, the normal method that adopts increasing section during reinforced beam and reinforced column are reinforced.The increasing section method normally is provided with wooden form or bamboo silk template behind former cross-sectional circumference assembling reinforcement skeleton, casting concrete then, treat that the concrete knot is hard after, form removal.But the sectional dimension that in actual engineering, often runs into beam, the required increase of post is limited, and the coarse aggregate during casting concrete in the concrete is difficult to get into former member and die clearance, concrete and is difficult to build closely knit and problem such as be difficult to vibrate.
Summary of the invention
The purpose of this invention is to provide a kind of grouting material and pour into airtight punching block reinforcement of rc beam and post with this grouting material; Solve adopting traditional increasing section method in the process of reinforcing limited beams of concrete of required increase size and concrete column, coarse aggregate is difficult to get into former member and die clearance, concrete and is difficult to build closely knit and problem such as be difficult to vibrate.
The present invention solves the problems of the technologies described above the technical scheme of being taked to be respectively:
Grouting material of the present invention; Said 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 of the present invention; The airtight punching block reinforcement of rc beam of said 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 is become 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 Steel Concrete beam under; And a plurality of stirrups equidistantly are set up in parallel along the length direction of former Steel Concrete beam; The one end overlap joint welding of the upper end of each stirrup and first connecting reinforcement; The other end of this first connecting reinforcement passes fixing the implantation in the former Steel Concrete beam of bottom face of former Steel Concrete beam; Many steel bar stresses are along the length direction setting of former Steel Concrete beams and pass a plurality of stirrups successively, and each is corresponding with one 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 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 Steel Concrete beam, and the two side of the two side of U-lag punching block and former Steel Concrete beam length direction is all affixed through a plurality of nailings or a plurality of crab-bolt, and the inner chamber that forms between former Steel Concrete beam, 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, said closed perfusion intra-bladder instillation grouting material.
Utilize the airtight punching block reinforced steel concrete post of grouting material perfusion welding of the present invention, the airtight punching block reinforced steel concrete post of said 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 the former Steel Concrete post of orthogonal are vertical affixed; And a plurality of crab-bolts are uniformly distributed with setting along four sidewalls of this former Steel Concrete post; Many steel bar stresses vertically are provided with; And many steel bar stresses are uniformly distributed with the outside of four sidewalls that are arranged on this former Steel Concrete post; The equidistant from top to bottom colligation of a plurality of stirrups is on the outer side of said many steel bar stresses; The upper end of many steel bar stresses and the many first corresponding one by one settings of connecting reinforcement, the end overlap joint welding of the upper end of every steel bar stress and corresponding first connecting reinforcement, the other end of every first connecting reinforcement is fixing to be implanted in the former post upper bracket; The lower end of many steel bar stresses and the many second corresponding one by one settings of connecting reinforcement; The one end overlap joint welding of the lower end of every steel bar stress and corresponding second connecting reinforcement, the other end of every second connecting reinforcement is fixing to be implanted in the former post undersetting, and Sheet Steel Form is coated on the outer side wall of a plurality of stirrups; It is the orthogonal punching block that the corresponding both sides end face welding of Sheet Steel Form constitutes xsect; Said xsect is that the inner chamber that forms between orthogonal punching block and former Steel Concrete post, former post upper bracket and the former post undersetting is closed filling cavity, and said xsect is that the upper end of a sidewall of orthogonal punching block is provided with the grouting hole that communicates with this closed filling cavity, said closed perfusion intra-bladder instillation grouting material.
The present invention has following beneficial effect: the present invention proposes the assembling reinforcement outside former member (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 into the reinforcement technique of grouting material of the present invention (cement based) at last, be referred to as to weld airtight punching block grouting reinforcement technique.This novel reinforced technology is compared with the increasing section method 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 cement-based grout material that is adopted (this cement-based grout 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 extensive applicability.
Description of drawings
Fig. 1 is that Fig. 2 is the A-A sectional view of Fig. 1 with the front view of the airtight punching block reinforced concrete beam of grouting material perfusion welding, and Fig. 3 is that Fig. 4 is the B-B sectional view of Fig. 3 with the front view of the airtight punching block reinforced concrete column of grouting material perfusion welding.
Embodiment
Embodiment one: the grouting material of this 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 said P.O52.5 ordinary Portland cement of this 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: combine Fig. 1 and Fig. 2 explanation; This embodiment utilizes 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 said 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 is become 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 Steel Concrete beam 2 under; And a plurality of stirrups 8 equidistantly are set up in parallel along the length direction of former Steel Concrete beam 2; The one end overlap joint welding of the upper end of each stirrup 8 and first connecting reinforcement 9; The other end of this first connecting reinforcement 9 passes the fixing former Steel Concrete beam 2 interior (quantity of first connecting reinforcement 9 is confirmed by design) of implanting of bottom face of former Steel Concrete beam 2; The length direction setting of the many former Steel Concrete beams 2 in steel bar stress 4 edges also passes a plurality of stirrups 8 successively; Each is corresponding with one 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 welding of an end of corresponding second connecting reinforcement 6 overlap joint, 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 Steel Concrete beam 2; The two side of the two side of U-lag punching block 5 and former Steel Concrete beam 2 length directions is all affixed through a plurality of nailings or a plurality of crab-bolt 10; The inner chamber that forms between former Steel Concrete beam 2, U-lag punching block 5 and two the former beam supports 3 is closed filling cavity 11, and the upper end of a 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 said closed filling cavity 11.
Each is affixed with a corresponding former beam support 3 at the two ends of the former Steel Concrete beam 2 in this embodiment, and former beam support 3 is former Steel Concrete post or body of wall, belongs to prior art.
The height of the former Steel Concrete beam 2 in this embodiment is h1 (thickness of floor 15 is included), and the height of the reinforced beam that increases newly is h2, and the value of the height h2 of the reinforced beam that increases newly is confirmed according to design.
Embodiment four: the said U-lag punching block 5 of this embodiment is formed by the tole bending.Other is identical with embodiment three.
Embodiment five: said 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: combine Fig. 3 and Fig. 4 explanation; This embodiment utilizes 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 said 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 the former Steel Concrete post 1 of orthogonal are vertical affixed; And a plurality of crab-bolts 10 are uniformly distributed with setting along four sidewalls of this former Steel Concrete post 1; Many steel bar stresses 4 vertically are provided with; And many steel bar stresses 4 are uniformly distributed with the outside of four sidewalls that are arranged on this former Steel Concrete post 1; A plurality of stirrups 8 are equidistantly colligation (quantity of steel bar stress 4, a plurality of stirrup 8 quantity are confirmed according to design) on the outer side of said many steel bar stresses 4 from top to bottom; The upper end of many steel bar stresses 4 and the many first corresponding one by one settings of connecting reinforcement 9; The one end overlap joint welding of the upper end of every steel bar stress 4 and corresponding first connecting reinforcement 9; The other end of every 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 many second corresponding one by one settings of connecting reinforcement 6, the end overlap joint welding of the lower end of every steel bar stress 4 and corresponding second connecting reinforcement 6; The other end of every 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, and it is the orthogonal punching block that the corresponding both sides end face welding of Sheet Steel Form 7 constitutes xsect, and said xsect is that the inner chamber that forms between orthogonal punching block and former Steel Concrete post 1, former post upper bracket 12 and the former post undersetting 16 is closed filling cavity 11; Said xsect is that the upper end of a sidewall of orthogonal punching block is provided with the grouting hole 13 that communicates with this closed filling cavity 11, perfusion grouting material in the said closed filling cavity 11.
Each is affixed with former post upper bracket 12 and former post undersetting 16 at the two ends up and down of the former Steel Concrete post 1 in this embodiment, and former post upper bracket 12 is former Steel Concrete beam or floor with former post undersetting 16, belongs to prior art.
Embodiment seven: the thickness of the said Sheet Steel Form 7 of this embodiment is 3～5mm.Design can be satisfied requirement of strength like this.Other is identical with embodiment one.
Claims (7)
1. a grouting is expected; It is characterized in that: said 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.
2. grouting material according to claim 1; It is characterized in that: the weight ratio of said P.O52.5 ordinary Portland cement 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.
3. one kind is utilized claim 1 or the airtight punching block reinforcement of rc beam of 2 described grouting material perfusion welding; It is characterized in that: the airtight punching block reinforcement of rc beam of said 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 is become 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 Steel Concrete beam (2) under; And a plurality of stirrups (8) equidistantly are set up in parallel along the length direction of former Steel Concrete beam (2); The one end overlap joint welding of upper end of each stirrup (8) and first connecting reinforcement (9); The other end of this first connecting reinforcement (9) passes fixing the implantation in the former Steel Concrete beam (2) of bottom face of former Steel Concrete beam (2); Many steel bar stresses (4) also pass a plurality of stirrups (8) successively along the length direction setting of former Steel Concrete beam (2); Each is corresponding with one 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 welding of an end of corresponding second connecting reinforcement (6) overlap joint, 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 Steel Concrete beam (2); The two side of the two side of U-lag punching block (5) and former Steel Concrete beam (2) length direction is all affixed through a plurality of nailings or a plurality of crab-bolt (10); The inner chamber that forms between former Steel Concrete beam (2), U-lag punching block (5) and two the former beam supports (3) is closed filling cavity (11), and the upper end of a 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 said closed filling cavity (11).
4. the airtight punching block reinforcement of rc beam of grouting material perfusion welding according to claim 3, it is characterized in that: said U-lag punching block (5) is formed by the tole bending.
5. the airtight punching block reinforcement of rc beam of grouting material perfusion welding according to claim 4, it is characterized in that: said steel-sheet thickness of slab is 3～5mm.
6. one kind is utilized claim 1 or the airtight punching block reinforced steel concrete post of 2 described grouting material perfusion welding, and it is characterized in that: the airtight punching block reinforced steel concrete post of said 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 the former Steel Concrete post of orthogonal (1) are vertical affixed; And a plurality of crab-bolts (10) are uniformly distributed with setting along four sidewalls of this former Steel Concrete post (1); Many steel bar stresses (4) vertically are provided with; And many steel bar stresses (4) are uniformly distributed with the outside of four sidewalls that are arranged on this former Steel Concrete post (1); The equidistant from top to bottom colligation of a plurality of stirrups (8) is on the outer side of said many steel bar stresses (4); The upper end of many steel bar stresses (4) and the corresponding one by one 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 first connecting reinforcement (9); The other end of every 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 corresponding one by one setting of many second connecting reinforcements (6), the end overlap joint welding of the lower end of every steel bar stress (4) and corresponding second connecting reinforcement (6); The other end of every 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), and it is the orthogonal punching block that the corresponding both sides end face welding of Sheet Steel Form (7) constitutes xsect, and said xsect is that the inner chamber that forms between orthogonal punching block and former Steel Concrete post (1), former post upper bracket (12) and the former post undersetting (16) is closed filling cavity (11); Said xsect is that the upper end of a sidewall of orthogonal punching block is provided with the grouting hole (13) that communicates with this closed filling cavity (11), perfusion grouting material in the said closed filling cavity (11).
7. one kind is utilized the airtight punching block reinforced steel concrete post of claim 6 described grouting material perfusion welding, and it is characterized in that: the thickness of said 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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| CN102351482A true CN102351482A (en) | 2012-02-15 |
| CN102351482B 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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Cited By (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 | The ruggedized construction and construction method of superposed type Prefabricated L-shaped prestressing force girt strip plate |
| CN109775559A (en) * | 2018-07-23 | 2019-05-21 | 安徽省雄峰起重机械有限公司 | A kind of 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 |
| 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 |
| 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 |
| CN113216677A (en) * | 2021-04-08 | 2021-08-06 | 河南征信建筑工程有限公司 | Simple high-strength structural column reinforcing mechanism and method |
| CN114893012A (en) * | 2022-05-07 | 2022-08-12 | 浙江翰达工程检测有限公司 | Reinforced concrete column resetting method |
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| 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 |
| CN1818276A (en) * | 2006-03-08 | 2006-08-16 | 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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Patent Citations (4)
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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 |
| CN1818276A (en) * | 2006-03-08 | 2006-08-16 | 哈尔滨工业大学 | Ribbed concrete column with built-in high-strength or super-strength concrete core column |
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Cited By (9)
| 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 | The ruggedized construction and construction method of superposed type Prefabricated L-shaped prestressing force girt strip plate |
| CN109775559A (en) * | 2018-07-23 | 2019-05-21 | 安徽省雄峰起重机械有限公司 | A kind of 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 |
| CN113216677A (en) * | 2021-04-08 | 2021-08-06 | 河南征信建筑工程有限公司 | Simple high-strength structural column reinforcing mechanism and method |
| CN114893012A (en) * | 2022-05-07 | 2022-08-12 | 浙江翰达工程检测有限公司 | Reinforced concrete column resetting 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 |
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| CN102351482B (en) | 2013-03-06 |
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