CN100451276C - Method and structure for reinforcing concrete post using angle steel - Google Patents
Method and structure for reinforcing concrete post using angle steel Download PDFInfo
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- CN100451276C CN100451276C CNB2005102003645A CN200510200364A CN100451276C CN 100451276 C CN100451276 C CN 100451276C CN B2005102003645 A CNB2005102003645 A CN B2005102003645A CN 200510200364 A CN200510200364 A CN 200510200364A CN 100451276 C CN100451276 C CN 100451276C
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Abstract
The present invention discloses a new method for reinforcing concrete columns by using cradle angle steel in building engineering, and a structure thereof. The present invention has the method and the structure that firstly, angle steel assemblies are produced, namely that the outer side surface of one limb of the angle steel is welded with screw bolts of steel bars and the outer side surface of another limb is welded with steel pipes; secondly, the angle steel assemblies are arranged at the periphery of concrete columns of steel bars needing to be reinforced, all angle steel assemblies are mutually connected by the screw bolts of steel bars penetrating through the steel pipes; finally, nuts are arranged on the screw bolts of the steel bars and screwed so that the inner medial surface of each angle steel is tightly contacted with the surface of each screw bolt of steel bars. The present invention comprises angle steel, the screw bolts of steel bars, and the steel pipes; in the length direction of the angle steel, the screw bolts of steel bars and the steel pipes are arranged in sequence at intervals to form adjacent stirrups in staggered distribution. The present invention can solve a problem of close contact of the cradle angle steel and the concrete columns, enhance the strength of the concrete columns, and reduces the cost of reinforced engineering.
Description
Technical field:
The present invention relates to adopt in the construction work method and the structure thereof of reinforcing concrete post using angle steel.
Background technology:
Beam in the building structure, post member, because of quality accident takes place in construction, or because of the load after the technological transformation surpasses design load, and cause insufficient strength to reinforce; With reinforced concrete post, reinforcement means commonly used has two kinds: the one, and angle steel on the tetra-pack of post is reinforced with the hoop binding between the angle steel; The 2nd, around post, respectively pour into a mould the thick steel concrete of 80mm at least, column section is increased, this reinforcement means is commonly called as " wearing wadded jacket ".Said method one, convenient simple and direct, expense is low, but because the inner corner trim in institute cornerite steel cross section is a circular arc, is difficult to be adjacent to the concrete column corner angle be integral, so pillar intensity increases and only has an appointment 12% behind the cornerite steel; Method two, consolidation effect is reliable, but time-consuming, and cost is very high.
Summary of the invention:
The objective of the invention is to: a kind of new method and structure thereof that adopts reinforcing concrete post using angle steel is provided, can solves institute's cornerite steel and concrete column and paste not tight problem, improve the intensity of concrete column, can reduce the expense of stabilization works again.
The present invention is achieved in that at first, makes the angle steel composite member, promptly at a limb lateral surface welded reinforcement bolt of angle steel, at the lateral surface welded steel pipe of another limb; Secondly, the angle steel composite member is arranged in the reinforced concrete post that needs reinforcement around, pass steel pipe by the reinforcing bar bolt between each angle steel composite member and be connected with each other; At last, on the reinforcing bar bolt nut is installed, fastening nut is adjacent to the medial surface of each angle steel and the surface of reinforced concrete post.
On each limb of angle steel, all be furnished with reinforcing bar bolt and steel pipe at interval, form neighbouring stirrup interlaced arrangement.
Adopt the per pass hoop method of nutting simultaneously, after single nut was tightened by controlling value, second nut of screwing on again got loose preventing, and tightens in sequence.
Specification, the length of angle steel, reinforcing bar bolt, steel pipe and nut are decided on the design parameters of reinforced concrete post.
The present invention constitutes like this: it comprises angle steel, and at a limb lateral surface welded reinforcement bolt of angle steel, at the lateral surface welded steel pipe of another limb, the inboard of angle steel and the surface of reinforced concrete post are adjacent to, and the reinforcing bar bolt passes steel pipe and is connected with nut.
In the above constituted, reinforcing bar bolt and steel pipe arranged that being arranged as at interval of angle steel length direction promptly the order of placement on a limb of angle steel is reinforcing bar bolt, steel pipe, arrange at interval successively; Order of placement on another limb of angle steel is steel pipe, reinforcing bar bolt, arranges at interval successively, forms the interlaced arrangement of adjacent stirrup; The reinforcing bar bolt adopts two nuts to connect with being connected of steel pipe.
The invention has the beneficial effects as follows: solved cornerite steel and concrete column and pasted not tight problem, can improve the intensity of concrete column, and can reduce the expense of stabilization works.
Description of drawings:
Fig. 1 is the schematic diagram of angle steel composite member of the present invention;
Fig. 2 is the sectional view of reinforced concrete column of the present invention;
Fig. 3 is the elevation of reinforced concrete column of the present invention.
The specific embodiment:
Embodiments of the invention:
At first, requirement of strength according to the geometric parameter and the bearing load of reinforced concrete post 4, specification, the length of angle steel 1, reinforcing bar bolt 2, steel pipe 3 and nut 5 is determined in design, determine the arrangement and the distance of neighbouring stirrup, requirement is on each limb of angle steel 1, all being furnished with reinforcing bar bolt 2 and steel pipe 3 at interval, is interlaced arrangement to form neighbouring stirrup.
Secondly, make the angle steel composite member, promptly at a limb lateral surface welded reinforcement bolt 2 of angle steel 1, lateral surface welded steel pipe 3 at another limb, reinforcing bar bolt 2 and steel pipe 3 are arranged being arranged as at interval of angle steel 1 length direction, promptly the order of placement on a limb of angle steel 1 is reinforcing bar bolt 2, steel pipe 3, arranges at interval successively; Order of placement on another limb of angle steel 1 is steel pipe 3, reinforcing bar bolt 2, arranges at interval successively; This angle steel composite member is made 4;
Then, 4 angle steel composite membeies be arranged in reinforced concrete post 4 around, pass steel pipe 3 by reinforcing bar bolt 2 between each angle steel composite member and be connected with each other;
At last, a nut 5 is installed earlier on reinforcing bar bolt 2, is made the screw-down torque of this nut 5 reach design load, treat surperficial sturdy being adjacent to of the medial surface of each angle steel 1 and reinforced concrete post 4 after, second nut of screwing on again prevents the purpose that gets loose to reach.Take the per pass hoop method of nutting simultaneously, after hoop is tightened together, twist the second road hoop again, carry out successively, until finishing.
After the reinforcing, the medial surface of each angle steel and the surface of concrete column are adjacent to fully, and this is because in nutting application of force process, and the concrete compression that concrete column is four jiaos squeezes and grinds off corner angle, are harmonious with the concave arc of angle cross section, and both are adjacent to comprehensively, stressed jointly.After testing, the present invention makes the intensity of concrete column improve 35%; And the reinforcing expense is cheap, only for wearing 26% of wadded jacket reinforcement means expense.
Claims (6)
1. the method for a reinforcing concrete post using angle steel is characterized in that: at first, make the angle steel composite member, promptly at a limb lateral surface welded reinforcement bolt (2) of angle steel (1), at the lateral surface welded steel pipe (3) of another limb; Secondly, the angle steel composite member is arranged in the reinforced concrete post (4) that needs reinforcement around, pass steel pipe (3) by reinforcing bar bolt (2) between each angle steel composite member and be connected with each other; At last, go up installation nut (5) at reinforcing bar bolt (2), fastening nut (5) is adjacent to the medial surface of each angle steel (1) and the surface of reinforced concrete post (4).
2. the method for reinforcing concrete post using angle steel according to claim 1 is characterized in that: on each limb of angle steel (1), all be furnished with reinforcing bar bolt (2) and steel pipe (3) at interval, form neighbouring stirrup interlaced arrangement.
3. the method for reinforcing concrete post using angle steel according to claim 1 is characterized in that: adopt the per pass hoop method of nutting (5) simultaneously, and after single nut (5) is tightened by controlling value, second nut of screwing on again.
4. the used steel work of binding foot in the reinforcing concrete post using angle steel method as claimed in claim 1, it comprises angle steel (1), it is characterized in that: at a limb lateral surface welded reinforcement bolt (2) of each angle steel (1), lateral surface welded steel pipe (3) at another limb, the surface of the inboard of angle steel (1) and reinforced concrete post (4) is adjacent to, and reinforcing bar bolt (2) passes the steel pipe (3) that is welded on corresponding another angle steel outside and is connected with nut (5).
5. the used steel work of binding foot in the reinforcing concrete post using angle steel method according to claim 4, it is characterized in that: reinforcing bar bolt (2) and steel pipe (3) are arranged being arranged as at interval of angle steel (1) length direction, promptly the order of placement on a limb of angle steel (1) is reinforcing bar bolt (2), steel pipe (3), arranges at interval successively; Order of placement on another limb of angle steel (1) is steel pipe (3), reinforcing bar bolt (2), arranges at interval successively, forms the interlaced arrangement of adjacent stirrup.
6. the used steel work of binding foot in the reinforcing concrete post using angle steel method according to claim 4 is characterized in that: mendelevium muscle bolt (2) adopts two nuts to connect with being connected of steel pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005102003645A CN100451276C (en) | 2005-06-30 | 2005-06-30 | Method and structure for reinforcing concrete post using angle steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005102003645A CN100451276C (en) | 2005-06-30 | 2005-06-30 | Method and structure for reinforcing concrete post using angle steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1702271A CN1702271A (en) | 2005-11-30 |
| CN100451276C true CN100451276C (en) | 2009-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005102003645A Expired - Fee Related CN100451276C (en) | 2005-06-30 | 2005-06-30 | Method and structure for reinforcing concrete post using angle steel |
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Families Citing this family (14)
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| CN100432356C (en) * | 2006-05-26 | 2008-11-12 | 上海大学 | Steel reinforced concrete rectangular column reinforcing method |
| CN101397854B (en) * | 2008-01-23 | 2012-01-11 | 贵州大学 | Enveloping prestressing force fastening type steel tube concrete column and reinforcement method |
| CN101899907B (en) * | 2010-04-08 | 2015-02-11 | 台州建筑安装工程公司 | Reinforced concrete column replacing and reinforcing method and device for unloading load of reinforced concrete column |
| CN102296834A (en) * | 2011-07-11 | 2011-12-28 | 中国建筑科学研究院 | Method for reinforcing low-strength masonry by using angle steel packing belt |
| CN103422518A (en) * | 2012-05-14 | 2013-12-04 | 贵阳铝镁设计研究院有限公司 | Electrolytic plant bus support pier reinforcing method and structure |
| WO2014058231A1 (en) * | 2012-10-09 | 2014-04-17 | 조선대학교산학협력단 | Internal force reinforcement device for pillar structure |
| CA2891102A1 (en) | 2012-11-09 | 2014-06-26 | Iinjec Technologies Inc. | Fluid delivery device and method |
| CN103075019B (en) * | 2012-11-09 | 2015-04-15 | 河南省建设集团有限公司 | Dismountable steel truss system for reinforcing concrete framework and construction method of dismountable steel truss system |
| CN106382018A (en) * | 2016-11-23 | 2017-02-08 | 福州大学 | Angle iron reinforcing structure capable of applying prestress to rectangular column and construction method of angle iron reinforcing structure |
| CN107023177A (en) * | 2017-05-23 | 2017-08-08 | 浙江精工钢结构集团有限公司 | A kind of dome-like roof temporary reinforcement method |
| CN109208818B (en) * | 2018-09-28 | 2020-07-17 | 深圳市鹏城建筑集团有限公司 | Method for fixing electric box in prefabricated shear wall template |
| CN111608415B (en) * | 2020-05-13 | 2021-07-06 | 武汉大学 | Square steel tube concrete column reinforcing method based on high-ductility cement-based material |
| CN113914648B (en) * | 2021-10-13 | 2023-01-06 | 浙江高专建筑设计研究院有限公司 | Building reinforcing structure and reinforcing method thereof |
| CN114607171B (en) * | 2022-03-24 | 2024-01-23 | 中海华祥建设发展有限公司 | Reinforcing device and reinforcing method for concrete column |
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| WO1999049155A1 (en) * | 1998-03-24 | 1999-09-30 | University Of Ottawa | Retrofitting existing concrete columns by external prestressing |
| US6219991B1 (en) * | 1990-08-06 | 2001-04-24 | Hexcel Corporation | Method of externally strengthening concrete columns with flexible strap of reinforcing material |
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| CN1702271A (en) | 2005-11-30 |
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