CN109853979A - A kind of structure for reinforcing stone beam structure flexural property - Google Patents
A kind of structure for reinforcing stone beam structure flexural property Download PDFInfo
- Publication number
- CN109853979A CN109853979A CN201910080556.9A CN201910080556A CN109853979A CN 109853979 A CN109853979 A CN 109853979A CN 201910080556 A CN201910080556 A CN 201910080556A CN 109853979 A CN109853979 A CN 109853979A
- Authority
- CN
- China
- Prior art keywords
- stone
- stone beam
- frp
- sheet material
- hole
- 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
- 239000004575 stone Substances 0.000 title claims abstract description 88
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 41
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 239000003822 epoxy resin Substances 0.000 claims abstract description 13
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 13
- 239000012790 adhesive layer Substances 0.000 claims abstract description 7
- 239000000853 adhesive Substances 0.000 claims abstract description 3
- 230000001070 adhesive effect Effects 0.000 claims abstract description 3
- 238000003475 lamination Methods 0.000 claims abstract 2
- 238000012545 processing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Working Measures On Existing Buildindgs (AREA)
Abstract
The present invention provides a kind of structures for reinforcing stone beam structure flexural property, including stone beam, FRP sheet material, mechanical anchor steel plate, expansion bolt, epoxy resin adhesive layer；Hole is arranged in the bottom of stone beam at a certain distance；FRP sheet material forms combination beam in stone beam bottom surface by epoxy resin adhesive layer lamination adhesive；The FRP sheet material of stacking forms certain thickness FRP plate band；Hole is located at the two sides of FRP plate band, and mechanical anchor steel plate is arranged along the length direction interval of stone beam bottom surface, and with FRP plate with contact；The both ends of mechanical anchor steel plate are equipped with along thickness direction relief hole, and expansion bolt is made up of the machanical fastener of " Kan " shape relief hole and mechanical anchor steel plate, and machanical fastener is fixedly connected by hole with stone beam.The structure of above-mentioned reinforcing stone beam structure flexural property, can effectively solve the problem for the stone beam structure bending resistance tensile region intensity deficiency first having, and avoid the problem that crack occurs too early in stone beam tensile region in use process.
Description
Technical field
The invention belongs to engineering design and technical field of construction is built, more particularly, to stone structure bridge and building construction.
Background technique
Stone material is because it is high with compressive strength, endurance quality is superior, freeze proof and sound insulation property is good, beautiful and generous and source is wide
The advantages that general, is just applied in many buildings as a kind of construction material very early, forms a kind of unique architectural style, Europe
Using castle, church and temple as representative, China is generally pinnacle, stone bridge, dolmen and stone masonry house etc. in continent.Stone structure building
It is the main carriers of human civilization for a long time with dense architectural feature and long history.
Nowadays one band of Southeast Coast of Fujian Province in China is still dispersed with a large amount of stone structure residential house, wherein most house mesh
It is preceding still to use.Stone beam, slabstone have been generallyd use in these stone structure houses, since stone material tensile capacity is relatively poor, and have been deposited
At natural fissure or joint, so that the bending resistance of stone material flexural member is often insufficient, it is easy in use process and under earthquake
Now it is broken.Although Fujian Province's provincial standard " stone structure house earthquake resistant design code " (DBJ13-11-93) is expressly provided, forbid to adopt
Use stone beam of the span greater than 1.2m as load-carrying members, but in practical villages and small towns stone structure house, there are a large amount of spans to be greater than 1.2m
Stone beam component.Using when existing FRP sheet attaching reinforces stone beam technology at present, combination interface is easy to happen surface layer tearing stripping
From.And when surface layer insertion FRP sheet material or FRP tendons reinforcing stone beam, it needs to existing structure slot treatment, existing structure can be caused
Damage and failure.Further research can be convenient and effectively improve the reinforcement technique of stone beam/hardened structure stress performance, and be used for
The strengthening reconstruction of existing stone structure house and stone beam bridge is of great significance.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of reinforcing stone beam
The structure of structure flexural property, structure is simple, and rationally, easy construction, function and effect are good, can effectively solve the stone first having for design
The problem of girder construction bending resistance tensile region intensity deficiency, and avoid the problem that crack occurs too early in stone beam tensile region in use process.
To solve the above-mentioned problems, the present invention propose it is a kind of reinforce stone beam structure flexural property structure, including stone beam,
FRP sheet material, mechanical anchor steel plate, expansion bolt, epoxy resin adhesive layer；
Hole is arranged in the bottom of the stone beam at a certain distance；The FRP sheet material bonds layer stackup by epoxy resin
It is bonded in stone beam bottom surface composition combination beam；The FRP sheet material of stacking forms certain thickness FRP plate band；
Described hole is located at the two sides of FRP plate band, and mechanical anchor steel plate is arranged along the length direction interval of stone beam bottom surface,
And with FRP plate band contact；The both ends of the mechanical anchor steel plate are equipped with along thickness direction relief hole, and expansion bolt is by allowing
The machanical fastener in position hole and mechanical anchor steel plate composition " Kan " shape, the machanical fastener connect by the way that hole and stone beam are fixed
It connects.
In a preferred embodiment: the bottom surface of the stone stone beam does interface roughness and handles a kind of compound sticking anchoring
The method of FRP bonding way reinforcing stone beam flexural property.
Compared to the prior art, the invention has the following advantages:
1. the present invention provides a kind of structure for reinforcing stone beam structure flexural property, both can be for the stone beam knot in hot work in progress
Structure is reinforced, and the stone beam structure in use can also be reinforced, and reinforcing does not need template, reduces a large amount of formwork, and
Reinforcing mode will not succinctly generate excessive waste material.
2. one layer of epoxy resin layer is arranged by the combination interface in stone beam-FRP sheet material in the present invention, and passes through mechanical anchor
The cohesive force that part effectively improves combination interface keeps the stress globality of entire composite structure more preferable, simultaneously because FRP sheet material is good
Good tensile strength, so that the compressive property of stone beam structure is fully played.
3. the present invention utilizes mechanic anchor to FRP sheet material and stone by the way that stone beam and FRP sheet material are carried out bonding combination
Beam combination interface applies precompressed effect, inhibits combination interface to remove too early, splits to avoid stone beam tension side during operation
Seam, reduces the maintenance cost of structure, can generate good economic benefits in the long term.
4. the present invention joined machanical fastener, and pass through compared with the mode of previous FRP material bonding and reinforcement structure
Machanical fastener is applied with pressure on FRP material surface, not only joined pin in the mechanism of entire FRP material work and makees
With also making the bonding interface of FRP sheet material and stone beam structural substrates that there is higher adhesion strength.
5. the present invention carries out coarse frosted processing by the surface to stone material bottom, in addition good bonding and interface precompressed
Effect so that two kinds of materials faying face have higher adhesion strength.Furthermore mechanic anchor can inhibit bonding interface
Removing, can be improved the utilization rate of entire FRP material performance.
Detailed description of the invention
Fig. 1 is that compound sticking anchors FRP reinforcing stone beam structure overview in the preferred embodiment of the present invention；
Fig. 2 is that compound sticking anchors FRP reinforcing stone beam structural facades figure in the preferred embodiment of the present invention；
Fig. 3 is the schematic diagram of mechanic anchor in the preferred embodiment of the present invention.
Specific embodiment
The invention patent is described in further detail below in conjunction with drawings and the embodiments.
Referring to fig. 1 to fig. 3, a kind of structure for reinforcing stone beam structure flexural property, including stone beam 1, FRP sheet material 2,
Expansion bolt 3, mechanical anchor plate 4, epoxy resin adhesive layer 5, the bottom 6 of stone beam 1 and FRP sheet material 2 bond, mechanical anchor plate 4
Both ends along thickness direction be equipped with relief hole 7.
As shown in figure 3, the bottom 6 of stone beam 1 is drilled with several holes on alongst, and FRP sheet material 2 is bonded in stone beam
Behind 1 bottom 6, there are a distances at the edge of the both ends of FRP sheet material 2 and stone beam 1, in order to construct and avoid stone beam at support
Crack at edge.The spacing of hole combines span and load size reasonable by curved stone beam structure to choose, and can accomplish in this way
Excess destruction is not caused to 1 section of stone beam, and the enough pressure of 2 extexine of FRP sheet material can be supplied to guarantee enough bondings
Intensity, and effectively inhibit the bonding interface of stone beam 1 and FRP sheet material 2 that removing occurs to early.
As shown in Figure 1, being bonded by epoxy resin adhesive layer 5 between stone beam 1 and FRP sheet material 2 to form composite structure.?
Coarse processing to be carried out for the bottom 6 of stone beam 1 before bonding, using electronic coarse machine come the bottom 6 to stone beam 1 in the present invention
Coarse processing is carried out to increase adhesive strength.After coarse be disposed, the smearing of epoxy resin is carried out in coarse processing region,
The bonding for carrying out first layer FRP sheet material 2 again later carries out after epoxy cure in the outer surface of first layer FRP sheet material 2
Above-mentioned identical processing to bond second layer FRP sheet material 2, and so on until required FRP sheet material 2 all bonding finishes.
Mechanical anchor steel plate 4 and expansion bolt 3 are prefabricated in the factory in advance, existing to be assembled into after transporting construction site to
" Qian " mechanic anchor.After FRP sheet material 2 all bonding finish and epoxy cure after, carry out the assembly of mechanic anchor.
The hole opened on expansion bolt 3 and stone beam 1 carries out the tight assembly in one hole of a bolt, after the completion of assembly, to same machinery
The expansion bolt at anchor plate both ends applies the matrix that identical torque is fixed in stone beam 1 simultaneously, to guarantee entire mechanical anchor
Gu steel plate 4 is smooth.Entire mechanic anchor connector it is assembled during there can be no the loosening of expansion bolt 3 with fall off.
During operation, pulling force suffered by 1 tension side of stone beam passes to FRP piece by the bonding effect of epoxy resin layer 5
Material 2, and the adhesion strength at interface is improved by mechanic anchor and inhibits the removing of combination interface.1 base of stone beam is reduced with this
The tensile stress that bottom is born, and improve the utilization rate of FRP sheet material 2.
In the present invention, FRP sheet material 2 is fixed on stone beam by epoxy resin and mechanic anchor and is drawn side external surface, FRP by 1
The hole of expansion bolt is drilled in the stone beam 1 of 2 two sides of sheet material, the spacing of two machanical fasteners is not answered overstocked in order to avoid causing to existing
Stone beam structure causes unnecessary damage and increases unnecessary strengthening construction workload, should not also dredge excessively and cause mechanical anchor
The unknown foot of effect.The spacing of mechanic anchor can be in conjunction with practical structures span and the load Rational choice being subjected to.It is swollen
Swollen bolt is squeezed into after drilled hole, is tightened nut and is controlled applied torque value by torque wrench, applies to bolt pre-
Clamp force makes combination interface be in preloading condition with this, and reinforces interface binding intensity and removing occurs to early in prefabricated interface.
In the present invention, the stone beam 2 reinforced can be the structure of hot work in progress construction, be also possible in existing structure
2 structure of stone beam reinforced.There is tensile region in the stone beam of required reinforcing, FRP sheet material is arranged in the substrate of tension side, right
Stone beam cracking should be avoided when stone beam is drilled to influence the fixed effect of machanical fastener and the bearing capacity of whole beam.
The smearing of epoxy resin 5 should carry out at normal temperature.The smearing time of slurry should be carried out continuously to avoid part is first poured
Curing shrinkage.
The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and those skilled in the art can
To readily appreciate that variation disclosed in this invention or technical scope.Alternative solution is intended to cover within the scope of the invention.Cause
This, protection scope of the present invention should be determined by the scope of the claims.
Claims (2)
1. a kind of structure for reinforcing stone beam structure flexural property, it is characterised in that: including stone beam, FRP sheet material, mechanical anchor steel
Plate, expansion bolt, epoxy resin adhesive layer；
Hole is arranged in the bottom of the stone beam at a certain distance；The FRP sheet material passes through epoxy resin adhesive layer lamination adhesive
Combination beam is formed in stone beam bottom surface；The FRP sheet material of stacking forms certain thickness FRP plate band；
Described hole is located at the two sides of FRP plate band, and mechanical anchor steel plate is arranged along the length direction interval of stone beam bottom surface, and
With FRP plate band contact；The both ends of the mechanical anchor steel plate are equipped with along thickness direction relief hole, and expansion bolt passes through relief hole
With the machanical fastener of mechanical anchor steel plate composition " Kan " shape, the machanical fastener is fixedly connected by hole with stone beam.
2. a kind of structure for reinforcing stone beam structure flexural property according to claim 1, it is characterised in that: the stone stone beam
Bottom surface do interface roughness processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910080556.9A CN109853979A (en) | 2019-01-28 | 2019-01-28 | A kind of structure for reinforcing stone beam structure flexural property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910080556.9A CN109853979A (en) | 2019-01-28 | 2019-01-28 | A kind of structure for reinforcing stone beam structure flexural property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109853979A true CN109853979A (en) | 2019-06-07 |
Family
ID=66896392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910080556.9A Pending CN109853979A (en) | 2019-01-28 | 2019-01-28 | A kind of structure for reinforcing stone beam structure flexural property |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109853979A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450144A (en) * | 2022-09-21 | 2022-12-09 | 山东大学 | Rusted concrete beam reinforcing method and structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736912A (en) * | 2009-12-03 | 2010-06-16 | 吴智深 | Anchorage method based on technique of bonding and reinforcement outside prestressed fiber cloth |
| CN101974959A (en) * | 2010-09-30 | 2011-02-16 | 大连理工大学 | Concrete structure FRP end anchor device |
| CN101994398A (en) * | 2010-10-15 | 2011-03-30 | 方远建设集团股份有限公司 | Concrete structure steel plate-fiber reinforce plastic (FRP) composite reinforcement method |
| CN105714695A (en) * | 2016-02-18 | 2016-06-29 | 沈阳建筑大学 | Anchoring structure for reinforcing T beam FRP |
| CN210086877U (en) * | 2019-01-28 | 2020-02-18 | 华侨大学 | Structure for reinforcing flexural performance of stone beam structure |
-
2019
- 2019-01-28 CN CN201910080556.9A patent/CN109853979A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736912A (en) * | 2009-12-03 | 2010-06-16 | 吴智深 | Anchorage method based on technique of bonding and reinforcement outside prestressed fiber cloth |
| CN101974959A (en) * | 2010-09-30 | 2011-02-16 | 大连理工大学 | Concrete structure FRP end anchor device |
| CN101994398A (en) * | 2010-10-15 | 2011-03-30 | 方远建设集团股份有限公司 | Concrete structure steel plate-fiber reinforce plastic (FRP) composite reinforcement method |
| CN105714695A (en) * | 2016-02-18 | 2016-06-29 | 沈阳建筑大学 | Anchoring structure for reinforcing T beam FRP |
| CN210086877U (en) * | 2019-01-28 | 2020-02-18 | 华侨大学 | Structure for reinforcing flexural performance of stone beam structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450144A (en) * | 2022-09-21 | 2022-12-09 | 山东大学 | Rusted concrete beam reinforcing method and structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6237292B1 (en) | Reinforcement of cementitious walls to resist seismic forces | |
| Meier et al. | 55 Retro-fitting of Structures through External Bonding of CFRP Sheets | |
| CN1963056B (en) | Bamboo residential building | |
| CN1978843A (en) | Construction method for reinforcing steel-bar net mortar thin layer | |
| CN101603335A (en) | The precast concrete shear wall and the production method of one-shot forming band heat insulation facing | |
| CN105781141B (en) | A kind of fiber knitted net enhancing cement base composite board reinforced for concrete flexural member and preparation method thereof | |
| CN211974453U (en) | Masonry brick wall steel plate belt reinforcing structure | |
| CN103964767A (en) | Cement-based composite and mending method of concrete cracks | |
| US6571524B2 (en) | Interconnection of building panels using fiber reinforced plastic composite-material connector plate | |
| CN208934217U (en) | A kind of prestressed slab component made of orthogonal laminated wood | |
| CN203129623U (en) | Composite strengthening structure for building | |
| CN109853979A (en) | A kind of structure for reinforcing stone beam structure flexural property | |
| CN102535734A (en) | Fiber-reinforced multilayer cement board and manufacturing method thereof | |
| CN202483200U (en) | Building reinforcing structure | |
| CN111469267B (en) | Wood-UHPC combined box girder and preparation method thereof | |
| CN113404215A (en) | Assembled steel-wood composite beam | |
| CN200975024Y (en) | Bamboo wood home building | |
| CN210086877U (en) | Structure for reinforcing flexural performance of stone beam structure | |
| CN110777997A (en) | Dry-type connecting system of prefabricated wood-concrete composite structure | |
| CN212295332U (en) | Section steel reinforced laminated wood/bamboo-concrete combined beam | |
| CN110130485A (en) | A kind of prefabricated assembled bean column node and its assembly method with tooth plate | |
| CN208858181U (en) | A kind of stickup anchoring bamboo wood reinforcing wood beam structure | |
| CN208455942U (en) | A kind of lightweight concrete-bamboo wood T-type beam | |
| CN218715381U (en) | Structure of prestressed carbon fiber fabric reinforced concrete slab reinforced concrete beam | |
| CN112065090A (en) | Reinforcing system for improving bending resistance bearing capacity of concrete structure and construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |