CN105756364A - Reinforcing method of concrete column - Google Patents
Reinforcing method of concrete column Download PDFInfo
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- CN105756364A CN105756364A CN201610127850.7A CN201610127850A CN105756364A CN 105756364 A CN105756364 A CN 105756364A CN 201610127850 A CN201610127850 A CN 201610127850A CN 105756364 A CN105756364 A CN 105756364A
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- steel
- concrete
- steel bushing
- template
- plank sheathing
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- 239000004567 concrete Substances 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 title abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 177
- 239000010959 steel Substances 0.000 claims abstract description 177
- 239000011150 reinforced concrete Substances 0.000 claims description 21
- 230000002787 reinforcement Effects 0.000 claims description 15
- 238000000465 moulding Methods 0.000 claims description 14
- 238000005266 casting Methods 0.000 claims description 10
- 210000003205 muscle Anatomy 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 4
- 230000011218 segmentation Effects 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000002023 wood Substances 0.000 abstract 8
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 2
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a reinforcing method of a concrete column. The reinforcing method is characterized in that steel plates are mounted on two opposite side faces of the concrete column; the other two side faces of the steel plates adopt steel batten plates; the steel batten plates and reinforcing steel plates are welded together, so that the steel plates on the two opposite side faces are connected into a whole body; in a concrete pouring process, poured concrete is pre-pressed through a pressurizing device; before the concrete is poured, a template supporting method is as follows: the steel plates mounted on the two opposite side faces of the concrete column are directly used as templates for pouring the concrete and the other two side faces of the concrete column adopt wood templates; each wood template is formed by splicing small templates; grooves are formed in connection parts of the wood templates and the steel plates; grooves are formed in the middles of the wood templates and steel square pipes are mounted in the grooves; the steel square pipes are arranged along the length direction of the wood templates; a unidirectional air valve is mounted at the end part of the steel square pipe of each small template. Template hoops are arranged on the outer surfaces of the wood templates and are used for connecting the steel plates and the wood templates to form a whole body; annular steel sleeves are arranged on the outer surfaces of the wood templates and a steel die, and an air pressure device is connected with air inlet flanges of the annular steel sleeves.
Description
Technical field
The present invention relates to a kind of reinforcement means, particularly to the reinforcement means of a kind of concrete weak post.
Background technology
When there are the common quality defects such as honeycomb hole when concrete column, bearing capacity can be a greater impact, it is necessary to concrete column is reinforced the bearing capacity improving concrete column.The method of tradition reinforced concrete disease post has steel plate reinforcement, namely arrange steel plate in concrete weak post surrounding to reinforce, casting concrete between steel plate and concrete weak post, owing to after-pouring concrete and original concrete deformation are inconsistent, differ greatly additionally, due to steel plate and concrete rigidity, when stress be no matter steel plate and after the concrete that adds be difficult to play a role, consolidation effect is severely impacted.
Summary of the invention
The present invention is to provide the reinforcement means of a kind of concrete weak post, and solving ruggedized construction and original xoncrete structure can not the problem of cooperative bearing.
Steel plate is installed at two of concrete column in side by the present invention, and steel plate thickness is 10～15mm, and two other side of steel plate adopts steel batten plate, and steel batten plate thickness is 12～16mm, and steel batten plate width is 15～20cm.Steel batten plate setting space is 50～70cm, steel batten plate welds with strengthening steel slab, and two steel plates to side are linked to be entirety, by pressue device, after-pouring concrete is carried out precompressed in casting concrete process, so that after-pouring concrete and original concrete deformation are coordinated, common load；Adopt as follows at casting concrete front template erection method: the steel plate template directly as casting concrete is installed in side by two of concrete column, another two side adopts plank sheathing, plank sheathing thickness is 18～25mm, and plank sheathing is formed by little template splicing, and every piece little form height is 50～70cm.Plank sheathing is arranging groove with steel plate connecting portion, and recess width is 10～15cm, and depth of groove is 8～10mm.Groove is set in the middle of plank sheathing, installing steel square tube in groove, steel Box Section length and width is 30～40cm, and steel square tube is along the elongated layout of plank sheathing, the steel square tube of each little template installs a Non-return air valve in end, and Non-return air valve is in order that be easy to each little template segmentation and remove.
Owing to reinforced concrete is subject to precompressed in condensation process, plank sheathing and reinforced concrete bonding ratio are stronger, plank sheathing is difficult to dismounting, therefore the present invention arranges steel square tube in the middle of plank sheathing, be conducive to removing plank sheathing after reinforcing concrete curing age reaches, dismounting plank sheathing is that reinforced concrete is produced lateral pressure by steel square tube, so that plank sheathing separates with reinforced concrete by realizing in the ventilation of steel square tube.
Arranging template hoop outside plank sheathing, template hoop is 40～50cm along the spacing of short transverse, and steel plate and plank sheathing are linked to be entirety by template hoop.
Annular steel bushing is set outside plank sheathing and punching block, annular steel bushing is fixed on the structure of periphery by bearing diagonal or horizontal support, annular steel bushing is made up of the semicircle steel bushing of two openings, semicircle You Yi limit, steel bushing both sides, wing limit indwelling pin hole, wing sideband has valve rubber, to ensure favorable sealing property after the splicing of semicircle steel bushing, insert pin hole with peg after semicircle steel bushing splicing to fix, annular steel bushing bottom floor does concrete cushion, floor bed course is placed above sponge to ensure sealing effectiveness, annular steel bushing is shelved on above the sponge on floor bed course top, two semicircle steel bushing end face winged limits, wing limit indwelling pin hole, annular steel bushing top cover winged limit, wing limit indwelling pin hole, wing sideband has valve rubber, annular steel bushing top cover inserts pin hole by peg and two semicircle steel bushings unify.Pneumatic shuttle couples with the inlet flange of annular steel bushing.
Construction procedure includes:
(1) concrete cover is cut
The concrete cover of two sides that sick post to be installed steel plate cuts, and exposes main muscle.
(2) steel plate is installed
Steel plate thickness is 10～15cm, is welded with main muscle by steel plate.
(3) plank sheathing is installed
Template hoop is made after the groove of steel plate insertion plank sheathing.
(4) reinforced concrete is built
(5) annular steel bushing is installed
Annular steel bushing bottom floor does concrete cushion, floor bed course is placed above sponge, annular steel bushing is shelved on above the sponge on floor bed course top, annular steel bushing is installed according to position location, annular steel bushing is fixed on the structure of periphery by bearing diagonal or horizontal support, annular steel bushing is made up of the semicircle steel bushing of two openings, inserts pin hole with peg and fix after semicircle steel bushing splicing, inserts pin hole stationary annular steel bushing top cover with peg again after treating semicircle steel bushing splicing.
(6) pneumatic shuttle is installed
Pneumatic shuttle couples with the inlet flange of annular steel bushing, and the moulding pressure of pneumatic shuttle is adjusted according to the intensity scale of reinforced concrete.Adopting C25 for reinforced concrete, moulding pressure adopts 4.5MPa；Adopting C30 for reinforced concrete, moulding pressure adopts 5MPa；Adopting C35 for reinforced concrete, moulding pressure adopts 5.5MPa；For reinforced concrete adopt C40 and more than, moulding pressure adopt 6MPa.Proceed by pressurization after 2 hours, after 10 hours, stop pressurization.
(7) annular steel bushing is removed
(8) plank sheathing is removed
Plank sheathing adopts segmentation to remove, and removes from bottom to top, opens the Non-return air valve of the little template in bottom, the steel square tube ventilation of little template in bottom, and air pressure is 3～5MPa, carries out removing the little template in bottom, installs steel batten plate after the little form removable in bottom at once.
The present invention makes the carrying ahead of time of reinforced concrete and steel column by precompressed, it is easy to coordinating with original concrete deformation and jointly carry, mechanical property is good.It addition, the present invention saves with conventional steel plates reinforcement material, less costly.
Accompanying drawing explanation
Fig. 1 is strenthening member molding structure schematic diagram, and Fig. 2 is that plank sheathing installs schematic diagram, and Fig. 3 is structural representation after reinforcing.
In each accompanying drawing: 1, steel plate, 2, plank sheathing, 3 annular steel bushings, 4, inlet flange, 5, pneumatic shuttle, 6, Non-return air valve, 7, steel square tube, 8, template hoop, 9, steel batten plate.
Detailed description of the invention
Fig. 1 is strenthening member molding structure schematic diagram, and Fig. 2 is that plank sheathing installs schematic diagram, and Fig. 3 is structural representation after reinforcing.
At two of concrete column, side being installed steel plate 1 in embodiment, steel plate 1 thickness is 12mm, and two other side of steel plate 1 adopts steel batten plate 9, and steel batten plate 9 thickness is 14mm, and steel batten plate 9 width is 18cm.Steel batten plate 9 setting space is 60cm, and steel batten plate 9 welds with strengthening steel slab 1, two steel plates 1 to side is linked to be entirety, by pressue device, after-pouring concrete is carried out precompressed in casting concrete process；Adopt as follows at casting concrete front template erection method: the steel plate 1 template directly as casting concrete is installed in side by two of concrete column, another two side adopts plank sheathing 2, plank sheathing 2 thickness is 20mm, and plank sheathing 2 is formed by little template splicing, and every piece little form height is 60cm.Plank sheathing 2 is arranging groove with steel plate 1 connecting portion, and recess width is 12cm, and depth of groove is 10mm.Arranging groove in the middle of plank sheathing 2, install steel square tube 7 in groove, steel square tube 7 cross-sectional length and width are 35cm, and steel square tube 7 is along the elongated layout of plank sheathing 2, and the steel square tube 7 of each little template installs a Non-return air valve 6 in end.
Arranging template hoop 8 outside plank sheathing 2, template hoop 8 is 45cm along the spacing of short transverse, and steel plate 1 and plank sheathing 2 are linked to be entirety by template hoop 8.
nullAnnular steel bushing 3 is set outside plank sheathing 2 and punching block，Annular steel bushing 3 is fixed on the structure of periphery by bearing diagonal or horizontal support，Annular steel bushing 3 is made up of the semicircle steel bushing of two openings，Semicircle You Yi limit, steel bushing both sides，Wing limit indwelling pin hole，Wing sideband has valve rubber，To ensure favorable sealing property after the splicing of semicircle steel bushing，Insert pin hole with peg after semicircle steel bushing splicing to fix，Annular steel bushing 3 bottom floor does concrete cushion，Floor bed course is placed above sponge to ensure sealing effectiveness，Annular steel bushing 3 is shelved on above the sponge on floor bed course top，Two semicircle steel bushing end face winged limits，Wing limit indwelling pin hole，Annular steel bushing 3 top cover winged limit，Wing limit indwelling pin hole，Wing sideband has valve rubber，Annular steel bushing 3 top cover inserts pin hole by peg and two semicircle steel bushings unify.Pneumatic shuttle 5 couples with the inlet flange 4 of annular steel bushing 3.
Construction procedure includes:
(1) concrete cover is cut
The concrete cover of two sides that sick post to be installed steel plate 1 cuts, and exposes main muscle.
(2) steel plate 1 is installed
Steel plate 1 thickness is 12cm, is welded with main muscle by steel plate 1.
(3) plank sheathing 2 is installed
Steel plate 1 makees template hoop 8 after inserting the groove of plank sheathing 2.
(4) reinforced concrete is built
(5) annular steel bushing 3 is installed
Annular steel bushing 3 bottom floor does concrete cushion, floor bed course is placed above sponge, annular steel bushing 3 is shelved on above the sponge on floor bed course top, annular steel bushing 3 is installed according to position location, annular steel bushing 3 is fixed on the structure of periphery by bearing diagonal or horizontal support, annular steel bushing 3 is made up of the semicircle steel bushing of two openings, inserts pin hole with peg and fix after semicircle steel bushing splicing, inserts pin hole stationary annular steel bushing 3 top cover with peg again after treating semicircle steel bushing splicing.
(6) pneumatic shuttle 5 is installed
Pneumatic shuttle 5 couples with the inlet flange 4 of annular steel bushing 3, and the moulding pressure of pneumatic shuttle 5 is adjusted according to the intensity scale of reinforced concrete.Reinforced concrete adopts C30, and moulding pressure adopts 5MPa.Proceed by pressurization after 2 hours, after 10 hours, stop pressurization.
(7) annular steel bushing 3 is removed
(8) plank sheathing 2 is removed
Plank sheathing 2 adopts segmentation to remove, and removes from bottom to top, opens the Non-return air valve 6 of the little template in bottom, and in bottom, the steel square tube 7 of little template is ventilated, and air pressure is 3～5MPa, carries out removing the little template in bottom, installs steel batten plate 9 after the little form removable in bottom at once.
Claims (9)
1. the reinforcement means of a concrete weak post, it is characterized in that, at two of concrete column, side is installed steel plate, two other side of steel plate adopts steel batten plate, steel batten plate welds with strengthening steel slab, two steel plates to side are linked to be entirety, in casting concrete process, by pressue device, after-pouring concrete are carried out precompressed；Adopt as follows at casting concrete front template erection method: the steel plate template directly as casting concrete is installed in side by two of concrete column, another two side adopts plank sheathing, plank sheathing is formed by little template splicing, plank sheathing is arranging groove with steel plate connecting portion, groove is set in the middle of plank sheathing, installing steel square tube in groove, steel square tube is along the elongated layout of plank sheathing, and the steel square tube of each little template installs a Non-return air valve in end.Arranging template hoop outside plank sheathing, steel plate and plank sheathing are linked to be entirety by template hoop；
Annular steel bushing is set outside plank sheathing and punching block, annular steel bushing is fixed on the structure of periphery by bearing diagonal or horizontal support, annular steel bushing is made up of the semicircle steel bushing of two openings, semicircle You Yi limit, steel bushing both sides, wing limit indwelling pin hole, wing sideband has valve rubber, insert pin hole with peg after semicircle steel bushing splicing to fix, annular steel bushing bottom floor does concrete cushion, floor bed course is placed above sponge, annular steel bushing is shelved on above the sponge on floor bed course top, two semicircle steel bushing end face winged limits, wing limit indwelling pin hole, annular steel bushing top cover winged limit, wing limit indwelling pin hole, wing sideband has valve rubber, annular steel bushing top cover inserts pin hole by peg and two semicircle steel bushings unify.Pneumatic shuttle couples with the inlet flange of annular steel bushing.
2. the reinforcement means of concrete weak post according to claim 1, is characterized in that construction procedure includes:
(1) concrete cover is cut
The concrete cover of two sides that sick post to be installed steel plate cuts, and exposes main muscle；
(2) steel plate is installed
Steel plate thickness is 10～15cm, is welded with main muscle by steel plate；
(3) plank sheathing is installed
Template hoop is made after the groove of steel plate insertion plank sheathing；
(4) reinforced concrete is built
(5) annular steel bushing is installed
Annular steel bushing bottom floor does concrete cushion, floor bed course is placed above sponge, annular steel bushing is shelved on above the sponge on floor bed course top, annular steel bushing is installed according to position location, annular steel bushing is fixed on the structure of periphery by bearing diagonal or horizontal support, annular steel bushing is made up of the semicircle steel bushing of two openings, inserts pin hole with peg and fix after semicircle steel bushing splicing, inserts pin hole stationary annular steel bushing top cover with peg again after treating semicircle steel bushing splicing；
(6) pneumatic shuttle is installed
Pneumatic shuttle couples with the inlet flange of annular steel bushing, and the moulding pressure of pneumatic shuttle is adjusted according to the intensity scale of reinforced concrete, adopts C25 for reinforced concrete, and moulding pressure adopts 4.5MPa；Adopting C30 for reinforced concrete, moulding pressure adopts 5MPa；Adopting C35 for reinforced concrete, moulding pressure adopts 5.5MPa；For reinforced concrete adopt C40 and more than, moulding pressure adopt 6MPa；Proceed by pressurization after 2 hours, after 10 hours, stop pressurization.
(7) annular steel bushing is removed
(8) plank sheathing is removed
Plank sheathing adopts segmentation to remove, and removes from bottom to top, opens the Non-return air valve of the little template in bottom, the steel square tube ventilation of little template in bottom, and air pressure is 3～5MPa, carries out removing the little template in bottom, installs steel batten plate after the little form removable in bottom at once.
3. the reinforcement means of concrete weak post according to claim 1, is characterized in that steel plate thickness is 10～15mm.
4. the reinforcement means of concrete weak post according to claim 1, is characterized in that steel batten plate thickness is 12～16mm, and steel batten plate width is 15～20cm.Steel batten plate setting space is 50～70cm.
5. the reinforcement means of concrete weak post according to claim 1, is characterized in that plank sheathing thickness is 18～25mm.
6. the reinforcement means of concrete weak post according to claim 1, is characterized in that every piece little form height is 50～70cm.
7. the reinforcement means of concrete weak post according to claim 1, is characterized in that recess width is 10～15cm, and depth of groove is 8～10mm.
8. the reinforcement means of concrete weak post according to claim 1, is characterized in that steel Box Section length and width is 30～40cm.
9. the reinforcement means of concrete weak post according to claim 1, is characterized in that template hoop is 40～50cm along the spacing of short transverse.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710542179.7A CN107327155B (en) | 2016-02-24 | 2016-02-24 | The reinforced construction method of concrete weak column |
| CN201610127850.7A CN105756364B (en) | 2016-02-24 | 2016-02-24 | The reinforcement means of concrete weak post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610127850.7A CN105756364B (en) | 2016-02-24 | 2016-02-24 | The reinforcement means of concrete weak post |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710542179.7A Division CN107327155B (en) | 2016-02-24 | 2016-02-24 | The reinforced construction method of concrete weak column |
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| Publication Number | Publication Date |
|---|---|
| CN105756364A true CN105756364A (en) | 2016-07-13 |
| CN105756364B CN105756364B (en) | 2017-11-28 |
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| CN201610127850.7A Active CN105756364B (en) | 2016-02-24 | 2016-02-24 | The reinforcement means of concrete weak post |
| CN201710542179.7A Active CN107327155B (en) | 2016-02-24 | 2016-02-24 | The reinforced construction method of concrete weak column |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710542179.7A Active CN107327155B (en) | 2016-02-24 | 2016-02-24 | The reinforced construction method of concrete weak column |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424763A (en) * | 2019-08-06 | 2019-11-08 | 北京市安泰运源建筑工程有限公司 | A kind of armored structure and its application method of column |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09151610A (en) * | 1995-12-01 | 1997-06-10 | Kajima Corp | Reinforcing method for reinforced concrete column |
| CN1343825A (en) * | 2001-10-31 | 2002-04-10 | 武汉大学 | Technology for making pressure bearing member of reinforced concrete |
| CN1851202A (en) * | 2006-05-26 | 2006-10-25 | 上海大学 | Steel reinforced concrete rectangular column reinforcing method |
| CN103410344A (en) * | 2013-07-08 | 2013-11-27 | 中冶天工上海十三冶建设有限公司 | Reinforced concrete wall beam strengthening and reinforcing device and wall beam strengthening method |
-
2016
- 2016-02-24 CN CN201610127850.7A patent/CN105756364B/en active Active
- 2016-02-24 CN CN201710542179.7A patent/CN107327155B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09151610A (en) * | 1995-12-01 | 1997-06-10 | Kajima Corp | Reinforcing method for reinforced concrete column |
| CN1343825A (en) * | 2001-10-31 | 2002-04-10 | 武汉大学 | Technology for making pressure bearing member of reinforced concrete |
| CN1851202A (en) * | 2006-05-26 | 2006-10-25 | 上海大学 | Steel reinforced concrete rectangular column reinforcing method |
| CN103410344A (en) * | 2013-07-08 | 2013-11-27 | 中冶天工上海十三冶建设有限公司 | Reinforced concrete wall beam strengthening and reinforcing device and wall beam strengthening method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424763A (en) * | 2019-08-06 | 2019-11-08 | 北京市安泰运源建筑工程有限公司 | A kind of armored structure and its application method of column |
| CN110424763B (en) * | 2019-08-06 | 2021-07-13 | 北京市安泰运源建筑工程有限公司 | Steel-clad structure of stand column and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105756364B (en) | 2017-11-28 |
| CN107327155A (en) | 2017-11-07 |
| CN107327155B (en) | 2019-03-08 |
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Effective date of registration: 20201221 Address after: 246000 yingdeli Industrial Park, Yangtze River Bridge Development Zone, Yixiu District, Anqing City, Anhui Province Patentee after: Anqing Expressway Concrete Co.,Ltd. Address before: Ouhai District of Zhejiang city in Wenzhou province 325000 Rong Road No. 39 Patentee before: Zhu Kui |
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Application publication date: 20160713 Assignee: Anqing Hengxin New Building Materials Co.,Ltd. Assignor: Anqing Expressway Concrete Co.,Ltd. Contract record no.: X2023980044505 Denomination of invention: Strengthening methods for concrete columns with defects Granted publication date: 20171128 License type: Common License Record date: 20231031 |