CN105696805B - Brick column reinforcing method - Google Patents
Brick column reinforcing method Download PDFInfo
- Publication number
- CN105696805B CN105696805B CN201610181674.5A CN201610181674A CN105696805B CN 105696805 B CN105696805 B CN 105696805B CN 201610181674 A CN201610181674 A CN 201610181674A CN 105696805 B CN105696805 B CN 105696805B
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- CN
- China
- Prior art keywords
- steel
- brick
- presstressed reinforcing
- batten plate
- post
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
Abstract
The invention discloses a kind of brick column reinforcing method, it is characterized in that the removing surface of brick post hangs two presstressed reinforcing steels after painting mortar, presstressed reinforcing steel interlude is to be arranged vertically, segment length is 0.45~0.55 times of brick pillar height degree among presstressed reinforcing steel, the turnover position that presstressed reinforcing steel vertical section is changed into oblique section sets steering bloom, billet inserts the vertical mortar joint of brick post, angle steel is set at 250~300mm first from brick styletable, angle steel inserts brick post transverse direction mortar joint, is fixed on angle steel by anchorage after tension of prestressed tendon；Gunite concrete is set outside presstressed reinforcing steel, and gunite concrete uses expansive concrete, and steel batten plate is set outside expansive concrete, and steel batten plate welds with being embedded in U-shaped built-in fitting in brick post, and steel batten plate width is 150~200mm.
Description
Technical field
The present invention relates to a kind of reinforcement means, more particularly to brick column reinforcing method.
Background technology
Brick columns bearing capacity will be reinforced when inadequate, and traditional reinforcement means is section-increased method, due to original structure
Body is in stress, has produced ess-strain, then plus structure there is no ess-strain, cause original structure and
Afterwards plus structure ess-strain it is uncoordinated, after causing plus structure and original structure be difficult to form entirety.It is necessary
This is improved, certain prestressing force is applied to the rear structure added, its is produced ess-strain, is advantageous to original structure
Coordinate stress with the rear structure added.
The content of the invention
The present invention is to provide a kind of brick column reinforcing method, and it is bad that solution brick columns bearing capacity will carry out consolidation effect when inadequate
Problem.
The removing surface of brick post hangs two presstressed reinforcing steels, a diameter of 18~25mm of presstressed reinforcing steel, prestressing force after painting mortar
Muscle interlude is is arranged vertically, and segment length is 0.45~0.55 times of brick pillar height degree among presstressed reinforcing steel, two presstressed reinforcing steel spacing
It is determined according to brick post section, when brick column section length is 250mm, two presstressed reinforcing steel spacing are 60mm；When brick column section
Length is 300mm, and two presstressed reinforcing steel spacing are 75mm；When brick column section length is 350mm, two presstressed reinforcing steel spacing are
90mm；When brick column section length is 400mm, two presstressed reinforcing steel spacing are 100mm；When brick column section length is 450mm, two
Presstressed reinforcing steel spacing is 110mm；When brick column section length is 500mm and the above, two presstressed reinforcing steel spacing are 120mm.
The turnover position that presstressed reinforcing steel vertical section is changed into oblique section sets steering bloom, turns to bloom and is made up of billet and pad reinforcing bar,
Billet thickness is 10mm, and the round steel that pad reinforcing bar is 12~14mm of diameter, pad steel-bar and stress technique muscle contact site is answered according to pre-
Power myospasm folding radian is polished, and presstressed reinforcing steel is contacted after transferring with pad reinforcing bar and is contacted for face.Billet insertion brick post is vertical
Mortar joint, sets angle steel at 250~300mm first from brick styletable, angle steel insertion brick post transverse direction mortar joint, leads to after tension of prestressed tendon
Cross anchorage and be fixed on angle steel.Gunite concrete is set outside presstressed reinforcing steel, and gunite concrete uses expansive concrete, expands coagulation
Native intensity be C30 or more than, thickness be 25~35mm, steel batten plate is set outside expansive concrete, steel batten plate is with being embedded in brick
U-shaped built-in fitting welds in post, and steel batten plate width is 150~200mm, and wrapping up gunite concrete by steel batten plate makes reinforced concrete
In three-dimensional stress state, playing ruggedized construction mechanical function ahead of time has very big effect, and steel batten plate sets spacing with reinforcing
The stress of concrete, which plays, very big relation, and lot of experiments is carried out for this, between being determined that steel batten plate is set according to result of the test
Away from.Table 1 is that steel batten plate sets spacing and the stress mobilization factor situation of reinforced concrete, table when brick column section length is 400mm
Middle brick column section is square, and the stress mobilization factor of reinforced concrete refers to the reinforced concrete bearing stress under upper load
With the ratio of limit stress.According to the result of table 1, with the increase of bearing capacity, the stress mobilization factor of reinforced concrete can be
Lifting, when steel batten plate sets spacing to be more than 550mm, stress mobilization factor reduces larger, and is smaller than when steel batten plate is set
The change of stress mobilization factor is little during 500mm.Therefore brick column section length, when being 400mm, it is more than 500mm that steel batten plate, which sets spacing,
And it is less than or equal to 550mm.Table 2 is the stress that steel batten plate sets spacing and reinforced concrete when brick column section length is 450mm
Mobilization factor situation, according to the situation of table 2, when brick column section length is 450mm, steel batten plate set spacing be more than 550mm and
Less than or equal to 600mm.Experiment determines successively：When brick column section length is 500mm, steel batten plate set spacing be more than
600mm and it is less than or equal to 650mm.When brick column section length is for 550mm or more than 550mm, it is big that steel batten plate, which sets spacing,
In 650mm and it is less than or equal to 700mm.When brick column section length is for 350mm or less than 350mm, steel batten plate setting spacing is
More than or equal to 450mm and it is less than or equal to 550mm.
Table 1 is that steel batten plate sets spacing and the stress mobilization factor feelings of reinforced concrete when brick column section length is 400mm
Condition
Table 2 is that steel batten plate sets spacing and the stress mobilization factor feelings of reinforced concrete when brick column section length is 450mm
Condition
Construction procedure includes：
(1) brick post is made to be in unloaded state.
(2) peel off the removing surface of brick post and paint mortar, the pre-buried U-shaped built-in fitting of brick post transverse direction mortar joint.
(3) billet is inserted into the vertical mortar joint of brick post, welded gasket reinforcing bar on the outside of billet, is formed and turn to bloom.
(4) angle steel, angle steel insertion brick post transverse direction mortar joint are set at 250~300mm first from brick styletable.
(5) presstressed reinforcing steel is hung, deformed bar end is coupled with three-phase low-voltage transformer, transformer is equipped with can power transformation
Resistance, while cooling device should be carried, the electric wire being connected to from electric heating transformer on deformed bar uses insulation soft copper silk twisted wire.
(6) presstressed reinforcing steel is tentatively fixed on angle steel with anchorage, carries out first time electrified regulation, electrified regulation 5min, build
Vertical primary stress, is then fixed on angle steel by anchorage by deformed bar.
(7) jet expansion concrete.
(8) second of electrified regulation, electrified regulation 5min are carried out after gunite concrete 45min.
(9) third time electrified regulation is carried out after 12 hours of gunite concrete, electrified regulation 10min will by anchorage
Deformed bar is fixed on angle steel.
(10) steel batten plate and U-shaped built-in fitting are welded, fusion length is greater than 80mm.
Mechanical property of the present invention is good, and quality is easily obtained guarantee.
Brief description of the drawings
Fig. 1 is brick post ruggedized construction elevational schematic view, and Fig. 2 is brick post ruggedized construction schematic cross-section, and Fig. 3 is steering bloom
Structural representation.
In each accompanying drawing：1st, brick post, 2, turn to bloom, 3, presstressed reinforcing steel, 4, angle steel, 5, steel batten plate, 6, anchorage, 7, swelled mixture
Solidifying soil, 8, U-shaped built-in fitting, 9, billet, 10, pad reinforcing bar.
Embodiment
Fig. 1 is brick post ruggedized construction elevational schematic view, and Fig. 2 is brick post ruggedized construction schematic cross-section, and Fig. 3 is steering bloom
Structural representation.The removing surface of brick post 1 hangs two presstressed reinforcing steels 3 after painting mortar in embodiment, and presstressed reinforcing steel 3 is a diameter of
22mm, the interlude of presstressed reinforcing steel 3 is is arranged vertically, and 3 middle segment length of presstressed reinforcing steel is 0.5 times of height of brick post 1, the section of brick post 1
Length is 400mm, and two spacing of presstressed reinforcing steel 3 are 100mm.The turnover position that the vertical section of presstressed reinforcing steel 3 is changed into oblique section is set
Bloom 2 is turned to, bloom 2 is turned to and is made up of billet 9 and pad reinforcing bar 10, the thickness of billet 9 is 10mm, and pad reinforcing bar 10 is diameter
12mm round steel, pad reinforcing bar 10 are polished with the contact site of presstressed reinforcing steel 3 according to the turnover radian of presstressed reinforcing steel 3, make prestressing force
Muscle 3 is contacted with pad reinforcing bar 10 after transferring and contacted for face.Billet 9 inserts 1 vertical mortar joint of brick post, from being set at the termination 300mm of brick post 1
Angle setting steel 4, angle steel 4 insert 1 horizontal mortar joint of brick post, angle steel 4 are fixed on by anchorage 6 after the tensioning of presstressed reinforcing steel 3.Prestressing force
The outside of muscle 3 sets gunite concrete, and gunite concrete uses expansive concrete 7, and the intensity of expansive concrete 7 is C30, and thickness is
30mm, the outside of expansive concrete 7 set steel batten plate 5, and steel batten plate 5 welds with being embedded in U-shaped built-in fitting 8 in brick post 1, steel batten plate 5
Width is 180mm.It is more than 520mm that steel batten plate 5, which sets spacing,.
Construction procedure includes：
(1) brick post 1 is made to be in unloaded state.
(2) peel off the removing surface of brick post 1 and paint mortar, the pre-buried U-shaped built-in fitting 8 of 1 horizontal mortar joint of brick post.
(3) billet 9 is inserted into 1 vertical mortar joint of brick post, the outside welded gasket reinforcing bar 10 of billet 9, is formed and turn to bloom 2.
(4) from angle steel 4 is set at the termination 300mm of brick post 1, angle steel 4 inserts 1 horizontal mortar joint of brick post.
(5) presstressed reinforcing steel 3 is hung, deformed bar end is coupled with three-phase low-voltage transformer, transformer is equipped with variable
Resistance, while cooling device should be carried, the electric wire being connected to from electric heating transformer on deformed bar uses insulation soft copper silk twisted wire.
(6) presstressed reinforcing steel 3 is tentatively fixed on angle steel 4 with anchorage 6, carries out first time electrified regulation, electrified regulation 5min,
Primary stress is established, deformed bar is then fixed on by angle steel 4 by anchorage 6.
(7) jet expansion concrete seven.
(8) second of electrified regulation, electrified regulation 5min are carried out after gunite concrete 45min.
(9) third time electrified regulation is carried out after 12 hours of gunite concrete, electrified regulation 10min will by anchorage 6
Deformed bar is fixed on angle steel 4.
(10) steel batten plate 5 and U-shaped built-in fitting are welded, fusion length is greater than 80mm.
Claims (3)
- A kind of 1. brick column reinforcing method, it is characterized in that the removing surface of brick post hangs two presstressed reinforcing steels, prestressing force after painting mortar Muscle interlude is is arranged vertically, and segment length is 0.45~0.55 times of brick pillar height degree among presstressed reinforcing steel, and presstressed reinforcing steel vertical section becomes Set for oblique section of turnover position and turn to bloom, the billet insertion vertical mortar joint of brick post, at 250~300mm first from brick styletable Angle steel is set, angle steel insertion brick post transverse direction mortar joint, angle steel is fixed on by anchorage after tension of prestressed tendon；Outside presstressed reinforcing steel Face sets gunite concrete, and gunite concrete uses expansive concrete, sets steel batten plate outside expansive concrete, steel batten plate is with burying It is located at U-shaped built-in fitting in brick post to weld, steel batten plate width is 150~200mm.
- 2. brick column reinforcing method according to claim 1, it is characterized in that a diameter of 18~25mm of presstressed reinforcing steel.
- 3. brick column reinforcing method according to claim 1, it is characterized in that expansive concrete intensity be C30 or more than, it is thick Spend for 25~35mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710537097.3A CN107191004B (en) | 2016-03-10 | 2016-03-10 | Brick column reinforced construction method |
| CN201610181674.5A CN105696805B (en) | 2016-03-10 | 2016-03-10 | Brick column reinforcing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610181674.5A CN105696805B (en) | 2016-03-10 | 2016-03-10 | Brick column reinforcing method |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710537097.3A Division CN107191004B (en) | 2016-03-10 | 2016-03-10 | Brick column reinforced construction method |
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| Publication Number | Publication Date |
|---|---|
| CN105696805A CN105696805A (en) | 2016-06-22 |
| CN105696805B true CN105696805B (en) | 2017-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710537097.3A Active CN107191004B (en) | 2016-03-10 | 2016-03-10 | Brick column reinforced construction method |
| CN201610181674.5A Active CN105696805B (en) | 2016-03-10 | 2016-03-10 | Brick column reinforcing method |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710537097.3A Active CN107191004B (en) | 2016-03-10 | 2016-03-10 | Brick column reinforced construction method |
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| CN106836604B (en) * | 2017-02-07 | 2022-08-12 | 叶长青 | Method for manufacturing large-span inclined roof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09151610A (en) * | 1995-12-01 | 1997-06-10 | Kajima Corp | Reinforcing method for reinforced concrete column |
| CN1401873A (en) * | 2002-09-05 | 2003-03-12 | 杜旌 | Method for pre-stressed reinforcing concrete compression member |
| CN201531124U (en) * | 2009-09-24 | 2010-07-21 | 马人乐 | Graded external pre-stress strengthening masonry structure |
| CN102080454A (en) * | 2010-12-02 | 2011-06-01 | 西安建筑科技大学 | Method for reinforcing pillars in buildings |
| CN202925926U (en) * | 2012-11-04 | 2013-05-08 | 西安建筑科技大学 | Reinforcing device for brick pillar |
| CN202925924U (en) * | 2012-11-04 | 2013-05-08 | 西安建筑科技大学 | Combination reinforcing device for brick pillar |
| CN103306492A (en) * | 2013-05-29 | 2013-09-18 | 朱奎 | Method for reinforcing concrete weak beam |
| CN103388408A (en) * | 2013-07-28 | 2013-11-13 | 桂林理工大学 | External pre-stressed tendon reinforcing steering block for building structure |
| JP2014136923A (en) * | 2013-01-17 | 2014-07-28 | Sanyo-Home Co Ltd | Reinforcement structure of concrete column |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832035B (en) * | 2010-05-15 | 2011-05-11 | 朱虹 | Structure and construction method for reinforced concrete column |
| RU2442867C1 (en) * | 2010-08-16 | 2012-02-20 | Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Сибирский Федеральный Университет" | Device for reinforcing bearing frame |
-
2016
- 2016-03-10 CN CN201710537097.3A patent/CN107191004B/en active Active
- 2016-03-10 CN CN201610181674.5A patent/CN105696805B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09151610A (en) * | 1995-12-01 | 1997-06-10 | Kajima Corp | Reinforcing method for reinforced concrete column |
| CN1401873A (en) * | 2002-09-05 | 2003-03-12 | 杜旌 | Method for pre-stressed reinforcing concrete compression member |
| CN201531124U (en) * | 2009-09-24 | 2010-07-21 | 马人乐 | Graded external pre-stress strengthening masonry structure |
| CN102080454A (en) * | 2010-12-02 | 2011-06-01 | 西安建筑科技大学 | Method for reinforcing pillars in buildings |
| CN202925926U (en) * | 2012-11-04 | 2013-05-08 | 西安建筑科技大学 | Reinforcing device for brick pillar |
| CN202925924U (en) * | 2012-11-04 | 2013-05-08 | 西安建筑科技大学 | Combination reinforcing device for brick pillar |
| JP2014136923A (en) * | 2013-01-17 | 2014-07-28 | Sanyo-Home Co Ltd | Reinforcement structure of concrete column |
| CN103306492A (en) * | 2013-05-29 | 2013-09-18 | 朱奎 | Method for reinforcing concrete weak beam |
| CN103388408A (en) * | 2013-07-28 | 2013-11-13 | 桂林理工大学 | External pre-stressed tendon reinforcing steering block for building structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107191004B (en) | 2019-06-04 |
| CN105696805A (en) | 2016-06-22 |
| CN107191004A (en) | 2017-09-22 |
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Effective date of registration: 20201204 Address after: 410000, 1st floor, Putai village committee office building, Puji Town, Liuyang City, Changsha City, Hunan Province Patentee after: Hunan Fengshou Project Management Co., Ltd Address before: 325000 No. 4, Jinchuan Road, Tianhe street, Wenzhou economic and Technological Development Zone, Zhejiang, China Patentee before: Ye Changqing |
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