CN208533864U - A kind of FRP- steel plate and concrete composite doubly-linked beam - Google Patents
A kind of FRP- steel plate and concrete composite doubly-linked beam Download PDFInfo
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- CN208533864U CN208533864U CN201821084059.3U CN201821084059U CN208533864U CN 208533864 U CN208533864 U CN 208533864U CN 201821084059 U CN201821084059 U CN 201821084059U CN 208533864 U CN208533864 U CN 208533864U
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Abstract
The utility model discloses a kind of FRP- steel plate and concrete composite doubly-linked beams, including doubly-linked beam ontology, doubly-linked beam ontology both ends are fixedly connected in wall limb and are linked to be an entirety with wall limb, doubly-linked beam ontology there are two be parallel to each other and upper coupling beam set up and down and lower coupling beam composition, the both ends of upper coupling beam and lower coupling beam are fixedly connected in wall limb and are linked to be an entirety with wall limb, steel plate is embedded in upper coupling beam and lower coupling beam, the length direction in the span direction and steel plate of upper coupling beam and lower coupling beam is consistent, and the outer surface of upper coupling beam and lower coupling beam is also enclosed with FRP cloth.A kind of FRP- steel plate and concrete composite doubly-linked beam of the utility model solves problem existing in the prior art in span-depth radio λ≤1.5, the shear-carrying capacity of single coupling beam and common doubly-linked beam is insufficient and ductility is poor.
Description
Technical field
The utility model belongs to technical field of civil engineering, is related to a kind of FRP- steel plate and concrete composite doubly-linked beam.
Background technique
When an earthquake occurs, influence of the generated seismic force to main structure is very big, and this requires in design
When want the shock resistance of reinforcement structure.For high-level structure, coupling beam and shear wall are extremely important in whole system
Antidetonation position, and coupling beam primarily serves the effect of protection shear wall as first of defence line of providing fortification against earthquakes, to the ability of its antidetonation
Requirement be very high, therefore many engineers propose the coupling beam of various structure types.
For traditional single coupling beam, due to the feature that its span is small, sectional dimension is big, so that single coupling beam is rigid
Degree is big, and can generate biggish shearing in the event of an earthquake causes coupling beam by failure by shear, and arrangement of reinforcement difficulty be easy to happen it is super
Muscle phenomenon.In order to solve the problems, such as that shear resistance difference and overreinforced, the existing technology of single coupling beam propose doubly-linked beam, doubly-linked beam is
Finger opens a horizontal straight joint to form two beams that can be worked together jointly, by increasing coupling beam in the middle part of single coupling beam
Span-depth radio improves the anti-seismic performance of coupling beam, although the ductility of doubly-linked beam increases, anti-seismic performance also increases, smaller
Span-depth radio (λ≤1.5) under, shear-carrying capacity still will appear insufficient situation, cause component ductility and energy dissipation capacity compared with
Brittle break still can occur for difference.
Utility model content
The purpose of the utility model is to provide a kind of FRP- steel plate and concrete composite doubly-linked beams, solve in the prior art
It is existing in span-depth radio λ≤1.5, the shear-carrying capacity of single coupling beam of ordinary reinforced concrete and doubly-linked beam is insufficient and ductility compared with
The problem of difference.
The utility model is the technical scheme adopted is that a kind of FRP- steel plate and concrete composite doubly-linked beam, including doubly-linked beam
Ontology, doubly-linked beam ontology both ends are fixedly connected in wall limb and are linked to be an entirety with wall limb, and there are two mutually for doubly-linked beam ontology
The both ends of upper coupling beam parallel and set up and down and lower coupling beam composition, upper coupling beam and lower coupling beam are fixedly connected in wall limb simultaneously
It is linked to be an entirety with wall limb, is embedded with steel plate, the span direction and steel plate of upper coupling beam and lower coupling beam in upper coupling beam and lower coupling beam
Length direction be consistent, the outer surface of upper coupling beam and lower coupling beam is also enclosed with FRP cloth.
The utility model is further characterized in that,
The tow sides of steel plate are also welded with peg.
The number and arrangement form of the peg of the tow sides of upper coupling beam and the embedded steel plate in lower coupling beam welding are all the same.
Upper coupling beam is identical with the sectional dimension of lower coupling beam and the span of upper coupling beam and lower coupling beam is also identical.
Upper coupling beam is identical with the size of the embedded steel plate in lower coupling beam.
The length that steel plate is embedded in upper coupling beam and lower coupling beam is greater than the span of upper coupling beam and lower coupling beam, and steel plate stretches out upper coupling beam
With being partially embedded in wall limb for lower coupling beam.
FRP cloth is bonded in the outer surface of coupling beam and lower coupling beam using binder.
The outer surface of upper coupling beam and lower coupling beam is enclosed with multilayer FRP cloth, and the outer surface of upper coupling beam and lower coupling beam is wrapped up
FRP cloth the number of plies it is identical.
The FRP of the utility model refers to fibre reinforced composites.
The utility model has the beneficial effects that a kind of FRP- steel plate and concrete composite doubly-linked beam of the utility model, application
Doubly-linked beam in span-depth radio λ≤1.5, structure is simple, reliable performance, and installation is convenient；When encountering small shake, the structure type
It can be good at consuming seismic force, structure made not occur significantly to destroy；When encountering big shake, coupling beam can give full play to it
Energy consumption effect, destroys prior to shear wall and occurs to be bending failure, brittle break will not occur, therefore reduce shearing in this way
The extent of the destruction of wall, loss is minimized.The utility model solves single coupling beam of ordinary reinforced concrete and doubly-linked beam exists
The problem that shear-carrying capacity under small span-depth ratio is insufficient and ductility is poor is effectively reduced shearing that coupling beam is born and curved
Square prevents component from brittle break occurs, further improves the ductility and intensity of coupling beam.
Detailed description of the invention
Fig. 1 is a kind of front elevation view of FRP- steel plate and concrete composite doubly-linked beam of the utility model；
Fig. 2 is the A-A cross-sectional view of Fig. 1.
In figure, 1. doubly-linked beam ontologies, 2. steel plates, 3. pegs, 4.FRP cloth, 5. wall limbs；
The upper coupling beam of 1-1., coupling beam under 1-2..
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
A kind of FRP- steel plate and concrete composite doubly-linked beam of the utility model, as shown in Figure 1, include doubly-linked beam ontology 1,
1 both ends of doubly-linked beam ontology are fixedly connected in wall limb 5 and are linked to be an entirety with wall limb 5, and there are two mutually flat for doubly-linked beam ontology 1
The both ends of upper coupling beam 1-1 capable and set up and down and lower coupling beam 1-2 composition, upper coupling beam 1-1 and lower coupling beam 1-2 are fixedly connected with
It is linked to be an entirety in wall limb 5 and with wall limb 5, upper coupling beam 1-1 and lower coupling beam 1-2 are embedded with steel plate 2, and upper coupling beam 1-1 is under
The outer surface of coupling beam 1-2 is also enclosed with FRP cloth 4, span-depth radio λ≤1.5 of upper coupling beam 1-1 and lower coupling beam 1-2, upper coupling beam 1-1 and
The span direction of lower coupling beam 1-2 and the length direction of steel plate 2 are consistent.
The tow sides of steel plate 2 are also welded with peg 3, as shown in Fig. 2, steel plate 2 is embedded in upper coupling beam 1-1 and lower coupling beam respectively
The middle of 1-2, the thickness direction of steel plate 2 and the thickness direction of upper coupling beam 1-1 and lower coupling beam 1-2 are consistent, the axis of peg 3
To vertical with the thickness direction of steel plate 2, the peg 3 on two faces of same steel plate 2 is symmetrical set.
The number and arrangement shape of the peg 3 of the tow sides of upper coupling beam 1-1 and the embedded steel plate 2 in lower coupling beam 1-2 welding
Formula is all the same.
Upper coupling beam 1-1 is identical with the sectional dimension of lower coupling beam 1-2 and the span of upper coupling beam 1-1 and lower coupling beam 1-2 is also identical.
The size of embedded steel plate 2 in upper coupling beam 1-1 and lower coupling beam 1-2 is identical.
The length that steel plate 2 is embedded in upper coupling beam 1-1 and lower coupling beam 1-2 is greater than the span of upper coupling beam 1-1 and lower coupling beam 1-2,
The both ends upper coupling beam 1-1's and lower coupling beam 1-2 of stretching of steel plate 2 is partially embedded in wall limb 5.
FRP cloth 4 is bonded in the outer surface of coupling beam 1-1 and lower coupling beam 1-2 using binder.
The outer surface of upper coupling beam 1-1 and lower coupling beam 1-2 are enclosed with multilayer FRP cloth 4, and upper coupling beam 1-1 and lower coupling beam 1-2
Outer surface package FRP cloth 4 the number of plies it is identical.
Peg 3 is welded on the tow sides of steel plate 2 by the utility model, in order to make steel plate 2 and upper coupling beam 1-1 and
The concrete of lower coupling beam 1-2 can preferably link together co-ordination, which is embedded in the mixed of upper and lower coupling beam respectively
Solidifying soil middle part, is finally wrapped up in the concrete outer layer of upper and lower coupling beam with FRP cloth 4, effect is played to concrete respectively
Hoop constraint effect to achieve the purpose that reinforce the intensity and ductility of structure, and does not need setting stirrup.
A kind of FRP- steel plate and concrete composite doubly-linked beam of the utility model follows the steps below production:
First, it is first existing to overlap the framework of steel reinforcement of doubly-linked beam ontology 1 and the framework of steel reinforcement of wall limb 5, then on steel plate 2
Weld stud 3, and peg 3 is arranged by detailing requiments, the purpose of peg is to improve steel plate 2 and upper coupling beam 1-1 and lower coupling beam
The ability of the concrete co-ordination of 1-2；Wherein the specification of peg 3 is chosen according to " norm of steel structure "；
Second, two steel plates 2 for being welded with peg 3 are inserted respectively into the upper coupling beam 1-1 and lower coupling beam 1- of doubly-linked beam ontology 1
It fixes and assembles in 2 framework of steel reinforcement, form assembled framework of steel reinforcement；
Third builds template, and assembled framework of steel reinforcement is put into template and is fixed, concreting is then carried out；
After 4th, maintenance 25-30 days, then demoulding, then feather plucking is carried out to the outer surface of upper coupling beam 1-1 and lower coupling beam 1-2
Processing, it is bonding with concrete surface its purpose is to increase FRP；
5th, bonding agent is smeared in the outer surface of processed upper coupling beam 1-1 and lower coupling beam 1-2, then wraps up FRP cloth
On the surface of coupling beam, after waiting bonding agents to parch.
Claims (8)
1. a kind of FRP- steel plate and concrete composite doubly-linked beam, which is characterized in that including doubly-linked beam ontology (1), doubly-linked beam ontology
(1) both ends are fixedly connected on wall limb (5) and are linked to be an entirety with wall limb (5), and there are two mutually for the doubly-linked beam ontology (1)
Upper coupling beam (1-1) parallel and set up and down and lower coupling beam (1-2) composition, the upper coupling beam (1-1) and lower coupling beam (1-2)
Both ends are fixedly connected on wall limb (5) and are linked to be an entirety, the upper coupling beam (1-1) and lower coupling beam (1-2) with wall limb (5)
Steel plate (2) inside are embedded with, the length direction in the span direction and steel plate (2) of upper coupling beam (1-1) and lower coupling beam (1-2) keeps one
It causes, the outer surface of the upper coupling beam (1-1) and lower coupling beam (1-2) is also enclosed with FRP cloth (4).
2. a kind of FRP- steel plate and concrete composite doubly-linked beam according to claim 1, which is characterized in that the steel plate (2)
Tow sides be also welded with peg (3).
3. a kind of FRP- steel plate and concrete composite doubly-linked beam according to claim 2, which is characterized in that the upper coupling beam
The number and arrangement form of the peg (3) of the tow sides welding of the inner embedded steel plate (2) of (1-1) and lower coupling beam (1-2) are homogeneous
Together.
4. a kind of FRP- steel plate and concrete composite doubly-linked beam according to claim 1, which is characterized in that the upper coupling beam
The span of (1-1) coupling beam (1-1) identical and upper with the sectional dimension of lower coupling beam (1-2) and lower coupling beam (1-2) is also identical.
5. a kind of FRP- steel plate and concrete composite doubly-linked beam according to claim 1, which is characterized in that the upper coupling beam
(1-1) is identical with the inner size of embedded steel plate (2) of lower coupling beam (1-2).
6. a kind of FRP- steel plate and concrete composite doubly-linked beam according to claim 5, which is characterized in that the upper coupling beam
The length of (1-1) and lower coupling beam (1-2) inner embedded steel plate (2) is greater than the span of upper coupling beam (1-1) and lower coupling beam (1-2), described
The both ends stretching upper coupling beam (1-1) of steel plate (2) and being partially embedded in wall limb (5) for lower coupling beam (1-2).
7. a kind of FRP- steel plate and concrete composite doubly-linked beam according to claim 1, which is characterized in that the FRP cloth
(4) outer surface of coupling beam (1-1) and lower coupling beam (1-2) is bonded in using binder.
8. a kind of FRP- steel plate and concrete composite doubly-linked beam according to claim 1 or claim 7, which is characterized in that the upper company
The outer surface of beam (1-1) and lower coupling beam (1-2) is enclosed with multilayer FRP cloth (4), and the upper coupling beam (1-1) and lower coupling beam (1-
2) number of plies of the FRP cloth (4) of outer surface package is identical.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821084059.3U CN208533864U (en) | 2018-07-10 | 2018-07-10 | A kind of FRP- steel plate and concrete composite doubly-linked beam |
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| CN201821084059.3U CN208533864U (en) | 2018-07-10 | 2018-07-10 | A kind of FRP- steel plate and concrete composite doubly-linked beam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108972851A (en) * | 2018-07-10 | 2018-12-11 | 西安理工大学 | A kind of doubly-linked beam and preparation method thereof of structure enhancing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108972851A (en) * | 2018-07-10 | 2018-12-11 | 西安理工大学 | A kind of doubly-linked beam and preparation method thereof of structure enhancing |
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