CN106836493A - A kind of FRP strop transfers for dome structure lower node - Google Patents
A kind of FRP strop transfers for dome structure lower node Download PDFInfo
- Publication number
- CN106836493A CN106836493A CN201710045200.2A CN201710045200A CN106836493A CN 106836493 A CN106836493 A CN 106836493A CN 201710045200 A CN201710045200 A CN 201710045200A CN 106836493 A CN106836493 A CN 106836493A
- Authority
- CN
- China
- Prior art keywords
- clamp plate
- sleeve
- steel clamp
- frp
- strop
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/32—Arched structures; Vaulted structures; Folded structures
-
- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
Abstract
The invention discloses a kind of FRP strop transfers for dome structure lower node, including depression bar sleeve, otic placode, steering sleeve and cord clip, wherein, cord clip includes upper steel clamp plate and lower steel clamp plate；The depression bar sleeve and otic placode are fixed on steel clamp plate, and otic placode is two pieces, is individually fixed in depression bar sleeve both sides；The upper steel clamp plate and the relative one side of lower steel clamp plate offer the deep-slotted chip breaker consistent with sleeve radian is turned to, and turn to sleeve and are placed in the deep-slotted chip breaker；Upper steel clamp plate and lower steel clamp plate are fixed by several fastening bolts, and are fixed on sleeve is turned between upper steel clamp plate and lower steel clamp plate.The present apparatus is solved to be needed the FRP muscle or rope of steering excessive in a certain sectional twisting angle and the technical barrier of failure by shear occurs.The steering of FRP ropes in its lower node that can be not only used for dome structure, it is also possible to for the steering for having the external prestressing FRP muscle compared with big corner demand.
Description
Technical field
The present invention relates to the space structure technical field of civil engineering, and in particular to one kind can be used for dome structure lower node
FRP strop transfers.The present apparatus can also be used for the steering of external FRP presstressed reinforcing steels or rope.
Background technology
Dome structure is the space pin-jointed system being made up of drag-line and depression bar, and pre- by the balance between drag-line and depression bar
Stress provides rigidity.With adapting to, span is big, dead load is light, make full use of Materials with High Strength, save material, assembled in situ journey
The advantages of degree is high, speed of application is fast and constructs environmentally friendly, is applied in large span spatial structure quite variedly.
But, in exposing to surrounding environment due to dome structure prestressed cable, the Anticorrosion of prestressed cable is to be worth weight
The problem that point notes.As high-strength light, decay resistance superior fibre reinforced composites (FRP) are gradually in civil construction
In be widely applied, then can be very good to solve common prestressed cable institute as the prestressed cable of dome structure using FRP ropes
The Anticorrosion for facing.But because FRP material shearing strength is low, be unsuitable for acutely bending, using FRP material as prestressing force
Steering during rope governs its application, it is clear that the conventional prestressing force transfer suitable for cable wire is no longer desirable for
FRP ropes, the transfer suitable for FRP ropes that some researchers are proposed then usually is faced with loss of prestress and damages greatly, to rope
The serious problem of wound.
The content of the invention
It is an object of the invention to provide a kind of FRP strop transfers for dome structure lower node, to reduce tensioning
When the loss of prestress that causes is turned to due to FRP ropes, and solve FRP ropes as dome structure strop, turn between strut lower node
To the problem of easily generation failure by shear.
To achieve the above object, the present invention uses following technical scheme：
A kind of FRP strop transfers for dome structure lower node, including depression bar sleeve, otic placode, turn to sleeve and
Cord clip, wherein, cord clip includes upper steel clamp plate and lower steel clamp plate；The depression bar sleeve and otic placode are fixed on steel clamp plate, and ear
Plate is two pieces, is individually fixed in depression bar sleeve both sides；The upper steel clamp plate and the relative one side of lower steel clamp plate are offered and turned
To the deep-slotted chip breaker that sleeve radian is consistent, turn to sleeve and be placed in the deep-slotted chip breaker；Upper steel clamp plate and lower steel clamp plate are tight by several
Fixing bolt is fixed, and is fixed on sleeve is turned between upper steel clamp plate and lower steel clamp plate.
Groove and hole are offered along exterior normal direction on the exterior normal face for turning to sleeve, hole is two, respectively positioned at groove
Two ends.
The length of the groove is no longer than the length of deep-slotted chip breaker.
Two hole positions on the steering sleeve are in relative two end of cord clip.
Rounding treatment is carried out at the inwall of the end for turning to sleeve.
Beneficial effects of the present invention：
The invention provides a kind of FRP strop transfers for dome structure lower node, by curving special angle simultaneously
Steering sleeve pipe and the cord clip composition of fluting.Steering sleeve portion inside cord clip is slotted on outer side, and the two ends of groove are beaten
Hole.Turn to diameter of the casing inner diameter slightly larger than FRP strops, it is therefore an objective to FRP muscle materials is passed through the steel pipe of fluting, it is special
Point is after FRP strops are passed through into steering sleeve, can to turn over the angle of design.Device simple structure, the easy construction.Constructed
Loosen cord clip in journey during tensioning strop, FRP strops in steel pipe slidably, can reduce the loss of prestress of FRP strops, make
The stress of whole ring rope is evenly distributed between each lower node.After tensioning is to design prestressing force size, cord clip is clamped, flattened
The round steel pipe of fluting, finally clamps FRP ropes, prevents the relative slip between steel pipe and strop, and increase the globality of structure.It is located at
The reason for steel pipe outside cord clip is not slotted is the rope that steel pipe is stretched out after cord clip part needs individually bear strop tensioning and steering
Power.The present apparatus is solved to be needed the FRP muscle or rope of steering excessive in a certain sectional twisting angle and the technical barrier of failure by shear occurs.
The steering of FRP ropes in its lower node that can be not only used for dome structure, it is also possible to external pre- compared with big corner demand for having
The steering of stress FRP muscle.
Brief description of the drawings
Fig. 1 is the structural representation of device of the invention；
Fig. 2 is the structural representation for turning to sleeve pipe and lower steel plate folder；
Fig. 3 is the position relationship schematic diagram for turning to sleeve pipe and FRP muscle material positioned at cord clip；
Fig. 4 is the pictorial diagram in the actual tests model of embodiment 1；
Fig. 5 is the pictorial diagram in the actual tests model of embodiment 2.
In figure, 1- depression bar sleeves, 2- otic placodes, 3- turns to sleeve, 4- cord clips, the upper steel clamp plates of 5-, 6- fastening bolts, steel under 7-
Clamping plate, 8- deep-slotted chip breakers, 9- exterior normals face, 10- holes, 11- grooves, 12-FRP ropes.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the present invention.
Embodiment 1
Shown in reference picture 1, the dome structure strut lower node that bootable FRP strops are turned to.By depression bar sleeve 1, otic placode 2,
Turn to sleeve 3 and cord clip 4 is constituted, wherein, cord clip 4 includes upper steel clamp plate 5 and lower steel clamp plate 7；The depression bar sleeve 1 and otic placode 2
It is welded on steel clamp plate 5, and otic placode 2 is two pieces, is respectively welded in the both sides of depression bar sleeve 1；The upper steel clamp plate 5 and lower steel clamp
The relative one side of plate 7 offers the deep-slotted chip breaker 8 consistent with the radian of sleeve 3 is turned to, and turns to sleeve 3 and is placed in the deep-slotted chip breaker 8；On
Steel clamp plate 5 and lower steel clamp plate 7 are fixed by several fastening bolts 6, and are fixed on upper steel clamp plate 5 and lower steel by sleeve 3 is turned to
Between clamping plate 7.
Turn to and offer groove 11 and hole 10 along exterior normal direction on the exterior normal face 9 of sleeve 3, hole 10 is two, respectively position
In the two ends of groove 11.The length of groove 11 is no longer than the length of deep-slotted chip breaker 8.Turn to the phase that two holes 10 on sleeve 3 are located at cord clip 4
To two ends.
Processed by rounding at the inwall of the end for turning to sleeve 3, to prevent the contact firmly of FRP ropes from fractureing.
Turning to exterior normal face on sleeve 3 has carried out punching slot treatment, and is carried out with the contact position of FRP ropes 12 in steel tube end part
Rounding treatment, to prevent the contact firmly of FRP ropes from fractureing, upper and lower steel clamp plate 5 is provided with according to the shape and radian for turning to sleeve 3
Deep-slotted chip breaker, to clamp the purpose for turning to sleeve after reaching tensioning.
With reference to shown in Fig. 3, FRP ropes used are the FRP ropes of a diameter of 5mm, and pipe diameter is 8mm, and central axis arc length is
210mm, bends through 18 °, and after FRP ropes pass through steel pipe, the radius of gyration is 1120mm under nature, and maximum stress in bend is
328MPa。
With reference to shown in Fig. 4, for the device is applied to the pictorial diagram in actual tests model, FRP ropes have turned after passing through sleeve
18 ° are crossed, when tensioning is carried out to strop, FRP strops will be extruded sleeve, compatible deformation, finally between adjacent node
Strop corner has reached 30 °.
Embodiment 2
The device of embodiment 2 is substantially the same manner as Example 1, repeats no more here.
With reference to shown in Fig. 3, as a diameter of 15mm of FRP ropes, pipe diameter is 20mm, thickness of steel pipe 2.5mm, in steel pipe
Heart axle arc length 268mm, bends through 14 °, the radius of curvature 1.1m of steel pipe.Now, the radius of gyration of nature rope is 2807mm, phase
The bending stress answered is 460MPa.Or cause bending difficult if single FRP ropes diameter is excessive, turning for many ropes can be set
To such as Fig. 5 is that double ropes turn to example.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of FRP strop transfers for dome structure lower node, it is characterised in that：Including depression bar sleeve (1), otic placode
(2) sleeve (3) and cord clip (4), are turned to, wherein, cord clip (4) includes upper steel clamp plate (5) and lower steel clamp plate (7)；The depression bar set
Cylinder (1) and otic placode (2) are fixed on steel clamp plate (5), and otic placode (2) is two pieces, is individually fixed in depression bar sleeve (1) both sides；
The upper steel clamp plate (5) and the relative one side of lower steel clamp plate (7) offer the deep-slotted chip breaker consistent with sleeve (3) radian is turned to
(8), sleeve (3) is turned to be placed in the deep-slotted chip breaker (8)；Upper steel clamp plate (5) and lower steel clamp plate (7) are by several fastening bolts
(6) it is fixed, and steering sleeve (3) is fixed between steel clamp plate (5) and lower steel clamp plate (7).
2. FRP strop transfers for dome structure lower node according to claim 1, it is characterised in that：It is described
Groove (11) and hole (10) are offered along exterior normal direction on the exterior normal face (9) for turning to sleeve (3), hole (10) are two, respectively
Positioned at the two ends of groove (11).
3. FRP strop transfers for dome structure lower node according to claim 2, it is characterised in that：It is described
The length of groove (11) is no longer than the length of deep-slotted chip breaker (8).
4. FRP strop transfers for dome structure lower node according to claim 2, it is characterised in that：It is described
Two holes (10) on sleeve (3) are turned to positioned at relative two end of cord clip (4).
5. FRP strop transfers for dome structure lower node according to claim 1, it is characterised in that：It is described
Rounding treatment is carried out at the inwall of the end for turning to sleeve (3).
6. FRP strop transfers for dome structure lower node according to claim 1, it is characterised in that：It is described
It can be many to turn to sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710045200.2A CN106836493B (en) | 2017-01-22 | 2017-01-22 | A kind of FRP strop transfers for dome structure lower node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710045200.2A CN106836493B (en) | 2017-01-22 | 2017-01-22 | A kind of FRP strop transfers for dome structure lower node |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106836493A true CN106836493A (en) | 2017-06-13 |
| CN106836493B CN106836493B (en) | 2018-10-02 |
Family
ID=59119933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710045200.2A Active CN106836493B (en) | 2017-01-22 | 2017-01-22 | A kind of FRP strop transfers for dome structure lower node |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106836493B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109190208A (en) * | 2018-08-17 | 2019-01-11 | 东南大学 | A kind of active rope prestressed stretch-draw amount of tension integral structure determines method |
| CN109537790A (en) * | 2018-12-13 | 2019-03-29 | 江苏大学 | A kind of multidirectional nodal connection device for CFRP rope suspended-dome structure |
| CN110541511A (en) * | 2019-08-16 | 2019-12-06 | 青岛理工大学 | Space chord steel-concrete composite floor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2666991Y (en) * | 2003-12-17 | 2004-12-29 | 柳州海威姆建筑机械有限公司 | Cable inhauling steering gear |
| CN102926494A (en) * | 2012-11-20 | 2013-02-13 | 天津大学 | Radial spherical plain cable-strut system for suspended dome structure |
| KR20140029945A (en) * | 2012-08-31 | 2014-03-11 | 박경룡 | Cable anchorange system using interactive wedge |
| CN103696520A (en) * | 2013-12-20 | 2014-04-02 | 天津大学 | CFRP (carbon fiber reinforced plastic) cable connecting joint of cable supported structure |
| CN205777000U (en) * | 2016-05-27 | 2016-12-07 | 天津大学 | A kind of prestressed steel structure cable support node |
-
2017
- 2017-01-22 CN CN201710045200.2A patent/CN106836493B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2666991Y (en) * | 2003-12-17 | 2004-12-29 | 柳州海威姆建筑机械有限公司 | Cable inhauling steering gear |
| KR20140029945A (en) * | 2012-08-31 | 2014-03-11 | 박경룡 | Cable anchorange system using interactive wedge |
| CN102926494A (en) * | 2012-11-20 | 2013-02-13 | 天津大学 | Radial spherical plain cable-strut system for suspended dome structure |
| CN103696520A (en) * | 2013-12-20 | 2014-04-02 | 天津大学 | CFRP (carbon fiber reinforced plastic) cable connecting joint of cable supported structure |
| CN205777000U (en) * | 2016-05-27 | 2016-12-07 | 天津大学 | A kind of prestressed steel structure cable support node |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109190208A (en) * | 2018-08-17 | 2019-01-11 | 东南大学 | A kind of active rope prestressed stretch-draw amount of tension integral structure determines method |
| CN109190208B (en) * | 2018-08-17 | 2022-02-11 | 东南大学 | Method for determining prestress tension of active cable for tensioning integral structure |
| CN109537790A (en) * | 2018-12-13 | 2019-03-29 | 江苏大学 | A kind of multidirectional nodal connection device for CFRP rope suspended-dome structure |
| CN110541511A (en) * | 2019-08-16 | 2019-12-06 | 青岛理工大学 | Space chord steel-concrete composite floor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106836493B (en) | 2018-10-02 |
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