CN102704702A - Reinforced grouting casing capable of improving bearing capacity of steel member - Google Patents
Reinforced grouting casing capable of improving bearing capacity of steel member Download PDFInfo
- Publication number
- CN102704702A CN102704702A CN2012101643305A CN201210164330A CN102704702A CN 102704702 A CN102704702 A CN 102704702A CN 2012101643305 A CN2012101643305 A CN 2012101643305A CN 201210164330 A CN201210164330 A CN 201210164330A CN 102704702 A CN102704702 A CN 102704702A
- Authority
- CN
- China
- Prior art keywords
- steel member
- bearing capacity
- casing
- reinforced grouting
- flexible material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 41
- 239000010959 steel Substances 0.000 title claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 18
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 15
- 230000008961 swelling Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 3
- 238000010276 construction Methods 0.000 abstract description 10
- 239000012528 membrane Substances 0.000 abstract 3
- 239000011405 expansive cement Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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- Joining Of Building Structures In Genera (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention relates to a reinforced grouting casing capable of improving bearing capacity of a steel member in the structural engineering field of fixed constructions. The reinforced grouting casing can be used for improving the bearing capacity of the steel member and repairing damage of the steel member. The structure of the reinforced grouting casing is as follows: a flexible material membrane is directly coated on the deformed part of the steel member; a straight casing is axially sleeved outside the steel member coated with the flexible material membrane; and expansive cement paste is filled between the straight casing and the flexible material membrane. With the adoption of the reinforced grouting casing, the problem that the structural safety and normal usage of the steel member are influenced during the reinforcing construction period in the prior art is overcome. By virtue of the reinforced grouting casing, the bearing capacity of the original steel member is increased without influence to the rigidity of the original member, thus the stress of each member of the original structure cannot be influenced. At the same time, the reinforced grouting casing is low in constructing precision requirement, convenient in constructing and short in construction period.
Description
Technical field
The present invention relates to fixed buildings Structural Engineering field, particularly a kind of sleeve pipe is used to improve the steel bearing of component, repairs the damage of steel member.
Background technology
During the normal operating condition of steel member is linear; But in actual engineering; Whole distortion, bird caging take place or because of getting rusty or the unexpected damage that causes through regular meeting in the steel member; Present reinforcement means can influence the load-carrying properties of former member like this for to cutting, change or weld the plate reinforcement on the former member, influences building safety and normal function use during strengthening construction.And, need install during reinforcing original structure is supported, cause reinforcing long in time limit, problems such as cost is high, construction precision requirement height.
Summary of the invention
In order to overcome prior art in steel strengthening member construction period safety of structure and the affected problem of normal function of use; The present invention provides a kind of reinforcing grouting sleeve that improves bearing capacity; Through using said reinforcing grouting sleeve; Can increase the raw steel bearing of component, but not influence the rigidity of former member, thereby can not influence each member stress size of original structure.Simultaneously, have that the construction precision requirement is lower, easy construction, short beneficial effect of duration.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is following:
A kind of reinforcing grouting sleeve that improves bearing capacity; The flexible material film directly is rolled in the position that the steel member deforms; Straight connector axially is sleeved on outside the said steel member that is wrapped with the flexible material film, and swelling water mud is filled between said straight connector and the said flexible material film.The steel member can be the member of arbitrary section, comprises i iron, round steel, angle steel, steel pipe or H shaped steel etc.Can in said swelling water mud, can be mixed with fiber or sand or other aggregate, wherein, fiber comprises glass fiber, carbon fiber and steel fibre etc.; Other aggregate comprises microlith, metallic particles etc.Among the present invention, the flexible material film can be the film that soft materials is processed in the prior aries such as plastic foil, rubber skin, soft glass.
In this programme, also can adopt the microdilatancy pea gravel concreten to substitute swelling water mud and be filled between straight connector and the flexible material film, adopt pea gravel concreten to fill and also can.
Because steel member and be wrapped in directly contact between the outer film, mutually between zerofriction force almost, straight connector insert and grouting after, the steel bearing of component improves, axial rigidity is constant, can not cause that structural internal force heavily distributes.Member after reinforcing stressed size with reinforce before constant, other member stress size also remains unchanged with reinforcing in the structure, thereby other members in the structure are not had influence.
Advantage of the present invention is to improve the supporting capacity of original steel member, and the rigidity of former member remains unchanged.Simultaneously, easy construction.
Description of drawings
Accompanying drawing 1 is a reinforcing sketch map of the present invention.
Accompanying drawing 2 is the generalized section of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
As shown in Figure 1: flexural deformation has taken place in original straight steel member 1, and steel member 1 center line bends, and forms arc.The flexible material film 4 outer outsides that are rolled in steel member generation flexing position; Straight connector 2 is enclosed within outside the flexible material film 4; Can in advance straight connector 2 be cut into two parts vertically during installation, two parts of this straight connector are buckled in respectively outside the steel member 1 that is wrapped with flexible material film 4, and joint connects at the scene; Method of attachment can be used existing methods of attachment such as welding or bolt, can certainly take other method that sleeve pipe 2 is enclosed within outside the steel member 1.The construction precision of suit is less demanding, and only the straight connector of need approximate size is inserted in and gets final product.After suit finishes; Can inject swelling water mud 3 at the two ends of sleeve pipe; The clearance space of filling flexible material film 4 and straight connector 2 certainly, also can directly be opened grouting mouthful perfusion swelling water mud 3 on straight connector 2 tube walls; The interim shutoff of material such as sheet material or the foamed plastics of various materials can be adopted in the straight connector two ends, also can not adopt.
Fig. 2 is a generalized section of the present invention, and the steel member shown in the figure is a round steel pipe, is merely a kind of signal, and the present invention can be applicable on the steel member in any cross section.
More than the scheme that the embodiment of the invention provided is introduced in detail, for one of ordinary skill in the art, according to the thought of the embodiment of the invention, part all can change on the specific embodiment and range of application.In sum, this description should not be construed as limitation of the present invention, and all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (5)
1. reinforcing grouting sleeve that improves the steel element bearing capacity; It is characterized in that: flexible material film (4) directly is rolled in the position that steel member (1) deforms; Straight connector (2) axially is sleeved on outside the said steel member (1) that is wrapped with flexible material film (4), and swelling water mud (3) is filled between said straight connector (2) and the said flexible material film (4).
2. a kind of reinforcing grouting sleeve that improves the steel element bearing capacity according to claim 1 is characterized in that: said swelling water mud (3) is replaceable to be pea gravel concreten.
3. a kind of reinforcing grouting sleeve that improves the steel element bearing capacity according to claim 1 is characterized in that: in said swelling water mud (3), mix fiber.
4. a kind of reinforcing grouting sleeve that improves the steel element bearing capacity according to claim 1 is characterized in that: in said swelling water mud (3), mix sand.
5. a kind of reinforcing grouting sleeve that improves the steel element bearing capacity according to claim 1 is characterized in that: in said swelling water mud (3), mix aggregate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210164330.5A CN102704702B (en) | 2012-05-24 | 2012-05-24 | A kind of reinforcing grouting sleeve improving steel beam column bearing capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210164330.5A CN102704702B (en) | 2012-05-24 | 2012-05-24 | A kind of reinforcing grouting sleeve improving steel beam column bearing capacity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102704702A true CN102704702A (en) | 2012-10-03 |
| CN102704702B CN102704702B (en) | 2015-09-30 |
Family
ID=46897731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210164330.5A Expired - Fee Related CN102704702B (en) | 2012-05-24 | 2012-05-24 | A kind of reinforcing grouting sleeve improving steel beam column bearing capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102704702B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103255928A (en) * | 2013-04-24 | 2013-08-21 | 中国华冶科工集团有限公司 | Method for strengthening rod pieces of steel structural dome |
| CN107327637A (en) * | 2016-04-19 | 2017-11-07 | 淄博环能海臣环保技术服务有限公司 | Prestressing force expanding cement composite anti-corrosive nonmetal pipeline built in a kind of tension shell |
| CN108189221A (en) * | 2018-01-25 | 2018-06-22 | 华北水利水电大学 | Enhancement Method and the mold of the test block is made in regenerative pervious concrete test block |
| CN114352058A (en) * | 2021-12-30 | 2022-04-15 | 华润水泥(南宁)有限公司 | Building structure reinforced cement rope and reinforcing construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201078050Y (en) * | 2007-07-10 | 2008-06-25 | 南京丹普科技工程有限公司 | Flection restrict dissipating energy support with gap and antiskid hump |
| CN101463634A (en) * | 2008-12-05 | 2009-06-24 | 北京工业大学 | Buckling-restrained brace with end having energy dissipation lead box and method for producing the same |
| CN101514570A (en) * | 2009-04-07 | 2009-08-26 | 同济大学 | Dissipative element of grouting sleeve |
| US20110041424A1 (en) * | 2009-04-07 | 2011-02-24 | Tongji University | Grouted Tubular Energy-Dissipation Unit |
-
2012
- 2012-05-24 CN CN201210164330.5A patent/CN102704702B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201078050Y (en) * | 2007-07-10 | 2008-06-25 | 南京丹普科技工程有限公司 | Flection restrict dissipating energy support with gap and antiskid hump |
| CN101463634A (en) * | 2008-12-05 | 2009-06-24 | 北京工业大学 | Buckling-restrained brace with end having energy dissipation lead box and method for producing the same |
| CN101514570A (en) * | 2009-04-07 | 2009-08-26 | 同济大学 | Dissipative element of grouting sleeve |
| US20110041424A1 (en) * | 2009-04-07 | 2011-02-24 | Tongji University | Grouted Tubular Energy-Dissipation Unit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103255928A (en) * | 2013-04-24 | 2013-08-21 | 中国华冶科工集团有限公司 | Method for strengthening rod pieces of steel structural dome |
| CN107327637A (en) * | 2016-04-19 | 2017-11-07 | 淄博环能海臣环保技术服务有限公司 | Prestressing force expanding cement composite anti-corrosive nonmetal pipeline built in a kind of tension shell |
| CN108189221A (en) * | 2018-01-25 | 2018-06-22 | 华北水利水电大学 | Enhancement Method and the mold of the test block is made in regenerative pervious concrete test block |
| CN114352058A (en) * | 2021-12-30 | 2022-04-15 | 华润水泥(南宁)有限公司 | Building structure reinforced cement rope and reinforcing construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102704702B (en) | 2015-09-30 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 |
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| CF01 | Termination of patent right due to non-payment of annual fee |