CN1743627A - Method for reinforcing concrete flexural member - Google Patents
Method for reinforcing concrete flexural member Download PDFInfo
- Publication number
- CN1743627A CN1743627A CN 200510019183 CN200510019183A CN1743627A CN 1743627 A CN1743627 A CN 1743627A CN 200510019183 CN200510019183 CN 200510019183 CN 200510019183 A CN200510019183 A CN 200510019183A CN 1743627 A CN1743627 A CN 1743627A
- Authority
- CN
- China
- Prior art keywords
- steel plate
- flexural member
- reinforced plastics
- concrete flexural
- fibre reinforced
- 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.)
- Pending
Links
Images
Landscapes
- Working Measures On Existing Buildindgs (AREA)
Abstract
This invention provides a method for strengthening members in bending of concrete including: first of all, adhering fiber reinforced plastics (FRP) on the tensioned face of a member in bending, then adhering and pressing a steel plate on the FRP finally to connect them into a bulk by binding anchorings of a U-like steel plate hooping the end of the steel plate, which applies steel plate and FRP to strengthen the members in bending of concrete so as to improve its mechanics property, its bearing capacity, capacity or anti-deformation and its rigidness.
Description
Technical field
The present invention relates to a kind of method, belong to building and civil engineering structures reinforcing technique field with fibre reinforced plastics and steel plate composite consolidation concrete flexural member.
Background technology
China has huge construction market, in industry and civilian construction, many concrete structures are because factors such as the defective of design, construction and the damage in the long-term use, aging and disasters, cause member cracking, the anti-seismic performance of considerable part bad, many problems that influence safety and function of use such as bearing capacity deficiency, need reinforce.In addition because the requirement of building structure storey-adding reconstruction or the change of function of use etc., make the bearing capacity deficiency of original structure need increase substantially bearing of component by the method for reinforcing.
At present in actual reinforcing to concrete flexural member, outer steel bonding plate is reinforced and pasted the fibre reinforced plastics reinforcing is that two kinds of application are comparatively extensive, the method that Study on behavior is comparatively ripe, both respectively have pluses and minuses on to the performance improvement of flexural member: paste the bearing capacity that the fibre reinforced plastics reinforcing method can improve concrete flexural member by a relatively large margin, and easily paste, has the strength-weight ratio height, heat-resisting and corrosion resistance is strong, advantage such as applied widely, but to pasting the member after fibre reinforced plastics are reinforced, the ductility in its cross section reduces significantly, rigidity improves less, and the stripping damage of fibre reinforced plastics takes place easily, destruction has certain emergentness, and the utilization rate of fibre reinforced plastics is lower simultaneously; Outer steel bonding plate reinforcing method reinforcement performance is good, save usage space, easy construction and easily anchoring, the steel-bonded reinforcement member all can keep ductility preferably by being loaded in the destructive process, all be restricted with the steel plate thickness and the number of plies but reinforce, be generally one deck in the actual engineering, thickness makes that its raising to the concrete flexural member bearing capacity is limited between 2mm～6mm.
Summary of the invention
For overcoming the shortcoming and defect of above-mentioned concrete flexural member reinforcement means, the invention provides a kind of method of reinforced concrete flexural member, reinforced concrete flexural member not only can improve the bearing capacity of flexural member by a relatively large margin in this way, but also can improve rigidity, ductility and globality and the reliability of flexural member.
The technical scheme that the present invention solves its technical problem is: a kind of method of reinforced concrete flexural member, at first fibre reinforced plastics are sticked on the tension face of concrete flexural member with the fiber cementing agent, with construction structure glue steel plate is pasted then and be pressed on the fibre reinforced plastics, make steel plate, fibre reinforced plastics and concrete flexural member be connected to integral body by U shaped steel plate hoop at the steel plate end anchorage at last.
For making consolidation effect better, with U shaped steel plate hoop when the steel plate end anchorage is connected to integral body with steel plate, fibre reinforced plastics and concrete flexural member, earlier U shaped steel plate hoop is pasted on the steel plate termination with construction structure glue, again at U shaped steel plate hoop two ends to wearing bolt to strengthen anchoring.
Technique effect of the present invention is: fibre reinforced plastics and steel plate composite consolidation concrete flexural member, both can utilize the easy adhibit quality of fibre reinforced plastics, bearing capacity improves the deficiency that is subjected to steel plate thickness and number of plies restriction when increasing its number of plies and remedying affixing steel plate reinforcement, can increase substantially the bearing capacity of concrete flexural member, easy anchoring in the time of can utilizing affixing steel plate reinforcement again, by itself and fibre reinforced plastics collaborative work, improved the utilization rate of fibre reinforced plastics, prevented peeling off suddenly of fibre reinforced plastics, thereby improved the bearing capacity of flexural member indirectly, utilize the good ductility of steel plate simultaneously, remedy the deficiency that flexural member ductility reduces when pasting the fibre reinforced plastics reinforcing, improve the stress performance of flexural member.Therefore, utilize above-mentioned two kinds of material composite consolidation concrete flexural members both can increase substantially the bearing capacity of flexural member, can improve rigidity, ductility and globality and the reliability of flexural member again.
And to adopt fibre reinforced plastics and steel plate composite consolidation concrete flexural member be a kind of efficient and economic novel reinforced method, find by experimental study, adopt fibre reinforced plastics and two kinds of material composite consolidations of steel plate concrete flexural member, two kinds of materials not only can well collaborative work, and the mechanical property of concrete flexural member is significantly improved.The present invention not only consolidation effect is good, and can reduce engineering cost greatly, makes engineering investment cost reduce about 40%, therefore is with a wide range of applications.
Description of drawings
Fig. 1 is the reinforcing schematic diagram of fibre reinforced plastics and steel plate composite consolidation concrete flexural member;
Fig. 2 is the I-I sectional drawing of Fig. 1.
Among Fig. 1, Fig. 2, the name of member shown in the figure number is called: (1)-concrete flexural member; (2)-fibre reinforced plastics; (3)-steel plate; (4)-U shaped steel plate hoop; (5)-bolt.
The specific embodiment
That the present invention is further illustrated is as follows below in conjunction with accompanying drawing:
By Fig. 1, shown in Figure 2, construction sequence with fibre reinforced plastics and steel plate composite consolidation concrete flexural member is as follows: the tension face that at first with the fiber cementing agent fibre reinforced plastics 2 is sticked on concrete flexural member 1, with construction structure glue steel plate 3 is pasted then and be pressed on the fibre reinforced plastics 2, make steel plate 3, fibre reinforced plastics 2 and concrete flexural member 1 be connected to integral body by U shaped steel plate hoop 4 at steel plate 3 end anchorages at last, promptly realize reinforcing concrete flexural member.When U shaped steel plate hoop 4 is anchored at steel plate 3 terminations, can be pasted on steel plate 3 terminations to U shaped steel plate hoop 4 with construction structure glue earlier, again at U shaped steel plate hoop 4 two ends to wearing bolt 5 to strengthen anchoring.
Claims (2)
1. the method for a reinforced concrete flexural member, it is characterized in that adopting following steps: at first use the fiber cementing agent fibre reinforced plastics (2) to be sticked on the tension face of concrete flexural member (1), with construction structure glue steel plate (3) is pasted then and be pressed on the fibre reinforced plastics (2), make steel plate (3), fibre reinforced plastics (2) and concrete flexural member (1) be connected to integral body by U shaped steel plate hoop (4) at steel plate (3) end anchorage at last.
2. the method for reinforced concrete flexural member according to claim 1, it is characterized in that: make steel plate (3), fibre reinforced plastics (2) and concrete flexural member (1) by U shaped steel plate hoop (4) at steel plate (3) when end anchorage is connected to integral body, at first U shaped steel plate hoop (4) is pasted on steel plate (3) termination with construction structure glue, again at U shaped steel plate hoop (4) two ends to wearing bolt (5) to strengthen anchoring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510019183 CN1743627A (en) | 2005-07-29 | 2005-07-29 | Method for reinforcing concrete flexural member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510019183 CN1743627A (en) | 2005-07-29 | 2005-07-29 | Method for reinforcing concrete flexural member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1743627A true CN1743627A (en) | 2006-03-08 |
Family
ID=36139133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510019183 Pending CN1743627A (en) | 2005-07-29 | 2005-07-29 | Method for reinforcing concrete flexural member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1743627A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404888C (en) * | 2006-05-26 | 2008-07-23 | 中国舰船研究设计中心 | Bonded structure between shell plate made from fibrous composite material and hardware |
| US7799154B2 (en) | 2006-06-30 | 2010-09-21 | City University Of Hong Kong | Concrete reinforcement |
| WO2011066798A1 (en) * | 2009-12-03 | 2011-06-09 | 北京特希达技术研发有限公司 | Anchoring method for external bonding and reinforcing technique with prestressed fiber cloth |
| CN102127973A (en) * | 2010-12-02 | 2011-07-20 | 西安建筑科技大学 | Reinforcing method of beam for building |
| CN102182326A (en) * | 2011-04-02 | 2011-09-14 | 武汉大学 | Strengthening method for concrete flexural member |
| CN102729544A (en) * | 2012-07-20 | 2012-10-17 | 武汉大学 | FRP (Fiber Reinforced Polymer)-steel advanced composite material for structure reinforcement and preparation method thereof |
| CN104631853A (en) * | 2015-02-06 | 2015-05-20 | 广东工业大学 | Fiber reinforced composite material anchoring device and method for reinforcing concrete structure |
| CN104763163A (en) * | 2015-01-26 | 2015-07-08 | 盐城工学院 | Method and process for reinforcing RC (Reinforced Concrete) beam of E-glass fiber fabric reinforced magnesium phosphate cement-based concrete thin-slab |
| CN105714695A (en) * | 2016-02-18 | 2016-06-29 | 沈阳建筑大学 | Anchoring structure for reinforcing T beam FRP |
| CN106555481A (en) * | 2016-10-27 | 2017-04-05 | 湖南大学 | The device and method of prestretching fiber composite board reinforced steel concrete flexural member |
| CN107965156A (en) * | 2017-12-05 | 2018-04-27 | 华南理工大学 | A kind of component and method of rapid reinforcement reinforced beam shear-carrying capacity |
| CN110206337A (en) * | 2019-06-24 | 2019-09-06 | 重庆交通大学 | For anchoring the metal anchorage and anchor structure of fibre reinforced composites |
| CN111236090A (en) * | 2020-01-09 | 2020-06-05 | 广州交通投资集团有限公司 | Reinforcing structure for reinforcing reinforced concrete bridge by adhering steel lattice and method thereof |
| CN112065090A (en) * | 2020-09-14 | 2020-12-11 | 马鞍山十七冶工程科技有限责任公司 | Reinforcing system for improving bending resistance bearing capacity of concrete structure and construction method |
-
2005
- 2005-07-29 CN CN 200510019183 patent/CN1743627A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404888C (en) * | 2006-05-26 | 2008-07-23 | 中国舰船研究设计中心 | Bonded structure between shell plate made from fibrous composite material and hardware |
| US7799154B2 (en) | 2006-06-30 | 2010-09-21 | City University Of Hong Kong | Concrete reinforcement |
| WO2011066798A1 (en) * | 2009-12-03 | 2011-06-09 | 北京特希达技术研发有限公司 | Anchoring method for external bonding and reinforcing technique with prestressed fiber cloth |
| US8776474B2 (en) | 2009-12-03 | 2014-07-15 | Zhishen Wu & Beijing Texida Technology Co., Ltd. | Anchoring method for external bonding and reinforcing technique with prestressed fiber cloth |
| CN102127973A (en) * | 2010-12-02 | 2011-07-20 | 西安建筑科技大学 | Reinforcing method of beam for building |
| CN102182326A (en) * | 2011-04-02 | 2011-09-14 | 武汉大学 | Strengthening method for concrete flexural member |
| CN102729544A (en) * | 2012-07-20 | 2012-10-17 | 武汉大学 | FRP (Fiber Reinforced Polymer)-steel advanced composite material for structure reinforcement and preparation method thereof |
| CN104763163A (en) * | 2015-01-26 | 2015-07-08 | 盐城工学院 | Method and process for reinforcing RC (Reinforced Concrete) beam of E-glass fiber fabric reinforced magnesium phosphate cement-based concrete thin-slab |
| CN104763163B (en) * | 2015-01-26 | 2017-05-03 | 盐城工学院 | Method and process for reinforcing RC (Reinforced Concrete) beam of E-glass fiber fabric reinforced magnesium phosphate cement-based concrete thin-slab |
| CN104631853A (en) * | 2015-02-06 | 2015-05-20 | 广东工业大学 | Fiber reinforced composite material anchoring device and method for reinforcing concrete structure |
| CN104631853B (en) * | 2015-02-06 | 2016-08-17 | 广东工业大学 | A kind of fibre reinforced composites anchor for reinforced concrete structure and anchoring process thereof |
| CN105714695A (en) * | 2016-02-18 | 2016-06-29 | 沈阳建筑大学 | Anchoring structure for reinforcing T beam FRP |
| CN106555481A (en) * | 2016-10-27 | 2017-04-05 | 湖南大学 | The device and method of prestretching fiber composite board reinforced steel concrete flexural member |
| CN106555481B (en) * | 2016-10-27 | 2018-08-14 | 湖南大学 | The device and method of prestretching fiber composite board reinforced steel concrete flexural member |
| CN107965156A (en) * | 2017-12-05 | 2018-04-27 | 华南理工大学 | A kind of component and method of rapid reinforcement reinforced beam shear-carrying capacity |
| CN110206337A (en) * | 2019-06-24 | 2019-09-06 | 重庆交通大学 | For anchoring the metal anchorage and anchor structure of fibre reinforced composites |
| CN111236090A (en) * | 2020-01-09 | 2020-06-05 | 广州交通投资集团有限公司 | Reinforcing structure for reinforcing reinforced concrete bridge by adhering steel lattice and method thereof |
| CN112065090A (en) * | 2020-09-14 | 2020-12-11 | 马鞍山十七冶工程科技有限责任公司 | Reinforcing system for improving bending resistance bearing capacity of concrete structure and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1743627A (en) | Method for reinforcing concrete flexural member | |
| CN100436740C (en) | Prestressed tensioning device for fiber board | |
| CA2791146C (en) | Bridge composite structural panel | |
| CN100366845C (en) | Method for strengthening construction unit using high strength fibre cloth | |
| CN102704698A (en) | Fully prestressed and compositely integrally reinforced concrete structure | |
| CN201649682U (en) | Compound reinforcing concrete flexural member | |
| CN201962964U (en) | Prestressed fiber resin compound rib-embedded and adhered reinforced concrete structure | |
| CN208578344U (en) | A kind of intermediate plate type articulated anchor device of fiber reinforced composite board | |
| CN1827975A (en) | Carbon fiber board anchor for civil engineering construction | |
| CN101074578B (en) | Special anchoros for wedged variable-corrugated clamped sheets | |
| CN1743626A (en) | Method for reinforcing steel beam | |
| CN102182326A (en) | Strengthening method for concrete flexural member | |
| CN210713360U (en) | Filler wall frame structure of GFRP reinforced flexible connection | |
| CN105484355B (en) | Connecting system of wood-concrete combined structure | |
| CN103469737A (en) | Method for reinforcing concrete bending member by using variable-bonding prestress carbon fiber plate | |
| CN207813076U (en) | Hydro-concrete Structures combined prestressing force hardened system | |
| CN2890220Y (en) | Carbon fiber board anchorage device for use in civil engineering and building construction | |
| CN205421038U (en) | A integrated configuration for combination strengthening T roof beam | |
| CN213572648U (en) | Externally-bonded reinforced glass beam | |
| CN106088654B (en) | FRP ruggedized construction ductility Enhancement Methods based on preload | |
| CN1125912C (en) | Technology for making pressure bearing member of reinforced concrete | |
| CN108824690A (en) | The connection method of prefibers plate and prefibers plate and composite material section bar | |
| CN209556423U (en) | A kind of FRP outsourcing cracked concrete structure | |
| CN104746416A (en) | Technology for solving long-term downwarping of large-span PC box girder bridge through prefabricated reactive powder concrete (RPC) columns | |
| CN201771200U (en) | Electrochemical embedded type reinforcement device for reinforced concrete structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |