CN105672130A - Cable division pipe and inhaul cable combined piece thereof - Google Patents
Cable division pipe and inhaul cable combined piece thereof Download PDFInfo
- Publication number
- CN105672130A CN105672130A CN201610152996.7A CN201610152996A CN105672130A CN 105672130 A CN105672130 A CN 105672130A CN 201610152996 A CN201610152996 A CN 201610152996A CN 105672130 A CN105672130 A CN 105672130A
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- China
- Prior art keywords
- line segment
- sub
- straight
- wire pipe
- strand
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a cable division pipe and an inhaul cable combined piece thereof. The section of the cable division pipe is in a shape that the upper round shape is gradually changed into the lower raindrop shape. Lower linear segments are tangent to an upper arc. Due to the fact that included angles are formed between the linear segments of the raindrop-shaped HDPE cable division pipe and the axis of symmetry, the radial force of a cable strand acts on the pipe wall, a certain counter force is generated by the pipe wall to the cable strand, and the cable strand is clamped. Therefore, the operation that an inner pipe is filled with epoxy mortar for sealing and anchoring after a bridge is constructed is not necessary; the cable division pipe guarantees that stranded steel wires are parallel without mutual interference, and the compatibility between single inhaul cable installation and a tensioning system is complete; meanwhile, the requirement for the tensioning space is lowered; and certain convenience is brought for cable replacement in an operation period.
Description
Technical field
The invention belongs to bridge structure technical field, it is specifically related to a kind of sub-wire pipe and drag-line subassembly thereof.
Background technology
Due to the mechanical characteristic of part cable-stayed bridge own, the maximum uneven Suo Li of its same skew cables relative to its Suo Li only account for the latter 5% less than, therefore the holding force of steering gear is required just do not have full cable-stayed bridge to require height by this bridge type, and this just adopts HDPE material to bring very big possibility to sub-wire pipe. Part cable-stayed bridge suspension cable steering gear structure is many both at home and abroad at present is made up of inner and outer pipe, and in wherein, pipe uses the more of circular sub-wire pipe, and Cheng Qiaohou pours into epoxy mortar in interior pipe and carries out closed anchoring. The saddle of this kind of structural form, due to epoxy mortar by steel strand and interior pipe conglutinate, therefore there is the situation of extruding mutually in suspension cable on the one hand, can not carry out adjustment stretch-draw by single root, can only entire beam tension. And resistant slide performance is not good. Also certain difficulty is brought to changing rope from now on the other hand.
Summary of the invention
It is an object of the invention to provide a kind of sub-wire pipe and drag-line subassembly thereof. Strand can be produced holding force by the present invention, and the installation of drag-line sub-thread and tensioning system have the fully compatible raindrop shape HDPE sub-wire pipe for Cable-stayed Bridge Pylon saddle with being convenient to change rope. The concrete structure of the present invention is as follows:
A kind of sub-wire pipe is the long pipe of the hollow of both ends open, and the cross section of this sub-wire pipe is made up of top semi-circular section 11, bottom raindrop shape section two portions.
Bottom raindrop shape is made up of left straight-line segment 12, right straight-line segment 13, bottom semicircular section 14. Bottom raindrop shape is similar to V-shaped.
The two ends of top semi-circular segments 11 are tangent with the top of the top of left straight-line segment 12, right straight-line segment 13 respectively.
The two ends of bottom semicircular section 14 are tangent with the bottom of the bottom of left straight-line segment 12, right straight-line segment 13 respectively.
Angle between left straight-line segment 12, right straight-line segment 13 is 50 °.
Profile wide at the top and narrow at the bottom is jointly formed by left straight-line segment 12, right straight-line segment 13, bottom semicircular section 14, top semi-circular section 11.
Adopt the drag-line subassembly of sub-wire pipe of the present invention:
A strand it is provided with in sub-wire pipe. Described strand is made up of steel strand material.
Non-filler or tackiness agent between described strand and sub-wire pipe.
When the radial force of strand acts on sub-wire tube wall, when namely the radial force of strand acts on left straight-line segment 12 and right straight-line segment 13, strand is produced counter-force by tube wall, and by the rubbing effect of strand and tube wall, defines tube wall to the clamping of strand.
In other words, adopt the sub-wire pipe of this structure to carry out closed anchoring without the need to pouring mortar. In addition, strand in this sub-wire pipe is parallel to each other and does not interfere with each other, the installation of drag-line sub-thread and tensioning system are had sufficient compatibility, effectively eliminates and use multiply stretch-draw screw block difficulty greatly to the restriction of drag-line specification, also reduce the requirement to stretch-draw space simultaneously.
Preferred technical scheme is: the present invention is a kind of raindrop shape HDPE sub-wire pipe for Cable-stayed Bridge Pylon saddle, its cross section is that top is semicircle to bottom raindrop shape gradual change, lower straight line segment and top circular arc are tangent, straight-line segment becomes 25 ° of angles with diad, lower end is fillet, and fillet inside radius is 5mm.
Its Advantageous Effects is: owing to the straight-line segment of raindrop shape HDPE sub-wire pipe becomes 25 ° of angles with diad, therefore the radial force making strand acts on tube wall, strand is produced again certain counter-force by tube wall, and the rubbing effect of strand and tube wall, thus form the clamping to strand, thus both carried out closed anchoring without the need to inwardly managing interior perfusion epoxy mortar at Cheng Qiaohou, in turn ensure that steel hinge line is parallel and does not interfere with each other, the installation of drag-line sub-thread and tensioning system had sufficient compatibility, effectively eliminate and use multiply stretch-draw screw block difficulty greatly to the restriction of drag-line specification, also reduce the requirement to stretch-draw space simultaneously, change rope to the operation phase and bring certain convenience. its structure is simple, and processing and fabricating is easy, and material cost is lower.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Sequence number in above-mentioned figure: raindrop shape HDPE sub-wire pipe 1, non-bending steel cable 2, saddle outlet position 3, extension 4, saddle 5.
Embodiment
Now it is described with reference to the accompanying drawings the constructional feature of the present invention.
See Fig. 1, a kind of sub-wire pipe is the long pipe of the hollow of both ends open, and the cross section of this sub-wire pipe is made up of top semi-circular segments 11, bottom raindrop shape section two portions, as shown in Figure 2.
See Fig. 2, bottom raindrop shape is made up of left straight-line segment 12, right straight-line segment 13, bottom semicircular section 14. Bottom raindrop shape is similar to V-shaped.
The two ends of top semi-circular segments 11 are tangent with the top of the top of left straight-line segment 12, right straight-line segment 13 respectively.
The two ends of bottom semicircular section 14 are tangent with the bottom of the bottom of left straight-line segment 12, right straight-line segment 13 respectively.
Angle between left straight-line segment 12, right straight-line segment 13 is 50 °.
Profile wide at the top and narrow at the bottom is jointly formed by left straight-line segment 12, right straight-line segment 13, bottom semicircular section 14, top semi-circular segments 11.
Furtherly, the radius of bottom semicircular section 14 is 5mm.
Furtherly, left straight-line segment 12, right straight-line segment 13 are symmetrical. The diad of left straight-line segment 12 and right straight-line segment 13 is 25 ° to the angle of left straight-line segment 12, right straight-line segment 13.
Furtherly, the material of left straight-line segment 12, right straight-line segment 13, bottom semicircular section 14, top semi-circular segments 11 is HDPE(HighDensityPolyethylene, high density polyethylene(HDPE)).
Furtherly, the left straight-line segment 12 of sub-wire pipe, the length of right straight-line segment 13 are not less than 15mm. The radius of note top semi-circular section 11 is R, radius to be R1, central angle the be Ф of bottom semicircular section 14, the length of left straight-line segment 12 is LL, right straight-line segment 13 length be LR, a few person's relation meets:
LL=LR;
R-R1=LLTan (Ф/2);
LLSpan be not less than 15mm.
Furtherly, the softening temperature of left straight-line segment 12 and right straight-line segment 13 should be greater than 120 DEG C, temperature of fusion be greater than 150 DEG C, impact embrittlement temperature be less than-76 DEG C, the resisting environmental stress and cracking time should be greater than 6000 hours.
Furtherly, the external diameter of top semi-circular section 11 is 23mm.
Furtherly, the wall thickness of top semi-circular segments 11, left straight-line segment 12, right straight-line segment 13, bottom semicircular section 14 is 2mm.
See Fig. 2, furtherly, adopt the drag-line subassembly of sub-wire pipe of the present invention, in sub-wire pipe, it is provided with a strand. Described strand is made up of steel strand material. Non-filler or tackiness agent between described strand and sub-wire pipe. When the radial force of strand acts on sub-wire tube wall, when namely the radial force of strand acts on left straight-line segment 12 and right straight-line segment 13, strand is produced counter-force by tube wall, and by the rubbing effect of strand and tube wall, defines tube wall to the clamping of strand.
In other words, adopt the sub-wire pipe of this structure to carry out closed anchoring without the need to pouring mortar. In addition, strand in this sub-wire pipe is parallel to each other and does not interfere with each other, the installation of drag-line sub-thread and tensioning system are had sufficient compatibility, effectively eliminates and use multiply stretch-draw screw block difficulty greatly to the restriction of drag-line specification, also reduce the requirement to stretch-draw space simultaneously.
As shown in Figure 2, preferred scheme is: this is used for the raindrop shape HDPE sub-wire pipe of part cable-stayed bridge cable steering gear, tangent by the HDPE sub-wire pipe lower straight line segment of the shaping external diameter 23mm of mould drawing, wall thickness 2mm and top circular arc, straight-line segment becomes 25 ° of angles with diad, lower end is fillet, and fillet inside radius is the raindrop shape HDPE sub-wire pipe of 5mm.
See Fig. 1, in order to reduce raindrop shape HDPE sub-wire pipe the holding force of drag-line caused the fatigure failure of suspension cable, raindrop shape HDPE sub-wire pipe begins from the saddle outlet position 3 of saddle 5, outwards extend an extension 4 by intrinsic radius, make the steel strand can at position, the center outlet spout of raindrop shape HDPE sub-wire pipe.
Claims (9)
1. a sub-wire pipe is the long pipe of the hollow of both ends open, it is characterised in that: the cross section of this sub-wire pipe is made up of top semi-circular section (11), bottom raindrop shape section two portions;
Bottom raindrop shape is made up of left straight-line segment (12), right straight-line segment (13), bottom semicircular section (14); Bottom raindrop shape is similar to V-shaped;
The two ends of top semi-circular segments (11) are tangent with the top on the top of left straight-line segment (12), right straight-line segment (13) respectively;
The two ends of bottom semicircular section (14) are tangent with the bottom of the bottom of left straight-line segment (12), right straight-line segment (13) respectively;
Angle between left straight-line segment (12), right straight-line segment (13) is 50 °;
Jointly profile wide at the top and narrow at the bottom is formed by left straight-line segment (12), right straight-line segment (13), bottom semicircular section (14), top semi-circular segments (11).
2. a kind of sub-wire pipe according to claim 1, it is characterised in that: the radius of bottom semicircular section (14) is 5mm.
3. a kind of sub-wire pipe according to claim 1, it is characterised in that: left straight-line segment (12), right straight-line segment (13) are symmetrical; Left straight-line segment (12) is 25 ° with the diad of right straight-line segment (13) to the angle of left straight-line segment (12), right straight-line segment (13).
4. a kind of sub-wire pipe according to claim 1, it is characterised in that: the material of left straight-line segment (12), right straight-line segment (13), bottom semicircular section (14), top semi-circular segments (11) is HDPE.
5. a kind of sub-wire pipe according to claim 1, it is characterised in that: the length of the left straight-line segment (12) of sub-wire pipe, right straight-line segment (13) is not less than 15mm;
The radius of note top semi-circular section (11) is R, radius to be R1, central angle the be Ф of bottom semicircular section (14), the length of left straight-line segment (12) is LL, right straight-line segment (13) length be LR, a few person's relation should meet:
LL=LR;
R-R1=LLTan (Ф/2);
LLSpan be not less than 15mm.
6. a kind of sub-wire pipe according to claim 1, it is characterised in that: the softening temperature of left straight-line segment (12) and right straight-line segment (13) should be greater than 120 DEG C, temperature of fusion be greater than 150 DEG C, impact embrittlement temperature be less than-76 DEG C, the resisting environmental stress and cracking time should be greater than 6000 hours.
7. a kind of sub-wire pipe according to claim 1, it is characterised in that: the external diameter of top semi-circular segments (11) is 23mm.
8. a kind of sub-wire pipe according to claim 1, it is characterised in that: the wall thickness of top semi-circular segments (11), left straight-line segment (12), right straight-line segment (13), bottom semicircular section (14) is 2mm.
9. adopt the drag-line subassembly of sub-wire pipe described in claim 1-8, it is characterised in that:
A strand it is provided with in sub-wire pipe; Described strand is made up of steel strand material;
Non-filler or tackiness agent between described strand and sub-wire pipe;
When the radial force of strand acts on sub-wire tube wall, namely when the radial force of strand acts on left straight-line segment (12) and right straight-line segment (13), strand is produced counter-force by tube wall, and by the rubbing effect of strand and tube wall, defines tube wall to the clamping of strand;
In other words, adopt the sub-wire pipe of this structure to carry out closed anchoring without the need to pouring mortar; In addition, strand in this sub-wire pipe is parallel to each other and does not interfere with each other, the installation of drag-line sub-thread and tensioning system are had sufficient compatibility, effectively eliminates and use multiply stretch-draw screw block difficulty greatly to the restriction of drag-line specification, also reduce the requirement to stretch-draw space simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610152996.7A CN105672130A (en) | 2016-03-17 | 2016-03-17 | Cable division pipe and inhaul cable combined piece thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610152996.7A CN105672130A (en) | 2016-03-17 | 2016-03-17 | Cable division pipe and inhaul cable combined piece thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105672130A true CN105672130A (en) | 2016-06-15 |
Family
ID=56234699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610152996.7A Pending CN105672130A (en) | 2016-03-17 | 2016-03-17 | Cable division pipe and inhaul cable combined piece thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105672130A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638310A (en) * | 2017-03-05 | 2017-05-10 | 郑州大学 | Efficient steel strand wire stay cable saddle |
| CN108330812A (en) * | 2018-03-27 | 2018-07-27 | 安徽省交通控股集团有限公司 | Using the cable-stayed bridge of revolution drag-line in the same direction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002088715A (en) * | 2000-09-18 | 2002-03-27 | Sumitomo Electric Ind Ltd | Water stopping construction at outlet portion of bridge saddle |
| CN102966040A (en) * | 2012-11-21 | 2013-03-13 | 安徽佳路机械制造有限公司 | Novel cable-stayed bridge cable saddle and manufacturing method thereof |
| CN202913351U (en) * | 2012-11-21 | 2013-05-01 | 安徽佳路机械制造有限公司 | Novel cable saddle for diagonal bridge |
| CN203007842U (en) * | 2013-01-07 | 2013-06-19 | 合肥斯派索材料科技有限公司 | Raindrop-shaped stainless steel splitting tube for rope tower dragging redirector of cable-stayed bridge |
| CN205012224U (en) * | 2015-09-10 | 2016-02-03 | 安徽省交通规划设计研究总院股份有限公司 | Cable -stay bridge centre gripping type saddle V type metal divides fiber tube skew to decompress port |
-
2016
- 2016-03-17 CN CN201610152996.7A patent/CN105672130A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002088715A (en) * | 2000-09-18 | 2002-03-27 | Sumitomo Electric Ind Ltd | Water stopping construction at outlet portion of bridge saddle |
| CN102966040A (en) * | 2012-11-21 | 2013-03-13 | 安徽佳路机械制造有限公司 | Novel cable-stayed bridge cable saddle and manufacturing method thereof |
| CN202913351U (en) * | 2012-11-21 | 2013-05-01 | 安徽佳路机械制造有限公司 | Novel cable saddle for diagonal bridge |
| CN203007842U (en) * | 2013-01-07 | 2013-06-19 | 合肥斯派索材料科技有限公司 | Raindrop-shaped stainless steel splitting tube for rope tower dragging redirector of cable-stayed bridge |
| CN205012224U (en) * | 2015-09-10 | 2016-02-03 | 安徽省交通规划设计研究总院股份有限公司 | Cable -stay bridge centre gripping type saddle V type metal divides fiber tube skew to decompress port |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638310A (en) * | 2017-03-05 | 2017-05-10 | 郑州大学 | Efficient steel strand wire stay cable saddle |
| CN108330812A (en) * | 2018-03-27 | 2018-07-27 | 安徽省交通控股集团有限公司 | Using the cable-stayed bridge of revolution drag-line in the same direction |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160615 |