CN103556572B - Gravity type anchorage structure of horizontal drawing cable bridge - Google Patents
Gravity type anchorage structure of horizontal drawing cable bridge Download PDFInfo
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- CN103556572B CN103556572B CN201310506846.8A CN201310506846A CN103556572B CN 103556572 B CN103556572 B CN 103556572B CN 201310506846 A CN201310506846 A CN 201310506846A CN 103556572 B CN103556572 B CN 103556572B
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Abstract
The invention discloses a gravity type anchorage structure of a horizontal drawing cable bridge. The gravity type anchorage structure of the horizontal drawing cable bridge comprises a concrete anchorage body and also comprises a plurality of groups of drawing ribs, steel cables, connecting devices, joists and cable saddles; the connecting devices are formed by connecting plates, pulleys, pin shafts and pins; the connecting plates are used for connecting the drawing ribs; the pulleys are used for connecting the steel cables; the pin shafts and the pins are used for fixing the connecting plates and the pulleys; the drawing ribs are embedded in the concrete anchorage body; the front ends of the drawing ribs and the connecting plates are welded into a whole; the tail ends of the steel cables are connected onto the pulleys in a sleeving mode. According to the gravity type anchorage structure of the horizontal drawing cable bridge, bridge loads of the horizontal drawing cable bridge are uniformly transmitted to the drawing ribs in the anchorage and accordingly the problem that dozens or even hundreds of drawing ribs are stressed together is solved and the material requirements and the machining difficulty of the drawing ribs are greatly reduced; meanwhile the anchorage structure of the cable bridge is optimized, the construction technology of a bridge abutment and the anchorage is simplified, and accordingly the installation quality of the drawing ribs can be easy to control; compared with the traditional structure, the use is safe and reliable, the structure is simple, the construction is convenient, and the cost is saved.
Description
Technical field
The present invention relates to a kind of horizontal drawing cable bridge gravity anchor structure, belong to bridge structure technical field.
Background technology
Road, pipeline or other conveying engineerings need construct a bridge in the time crossing over river cheuch, and in numerous bridge types, horizontal drawing cable bridge, and is used widely because its cost is low, construction speed fast, easy construction as the common bridge type of one.The feature of horizontal drawing cable bridge is that load acts directly on cable wire, and the sag of cable wire is less, thereby the quantity of cable wire is more.Conventionally, cable wire is connected with special anchor pole by linkage, is delivered among the massif of two sides stressed by anchor pole.
The anchoring of anchor pole is the key issue of horizontal drawing cable bridge, traditional anchorage structure is to adopt special anchor pole, its one end is connected with cable wire, the other end is connected with the anchor device of special setting, anchor device is fixed on concrete anchorage beam, finally be subject to by anchorage joist support the steel cable stretching force transmitting by anchor pole, and pass on ground.In traditional horizontal drawing cable bridge anchorage structure, cable wire is a corresponding anchor pole of cable wire with the connection of anchor pole, and therefore the quantity of anchor pole is identical with cable wire.Stressed larger due to anchor pole, needs to adopt high-strength steel to make; Equally, the device of connection cable wire and anchor pole also needs to adopt Materials with High Strength.
The problem that this anchorage structure exists mainly contains: (1) is due to the corresponding cable wire of an anchor pole, anchor pole can not be jointly stressed, thereby anchor pole (or linkage) needs to adopt high-strength steel, easily produce brittle fracture, also very harsh to welding requirements, and site operation welding quality is often difficult to ensure.Once there are quality problems (as defective in material, installation deviation is large, poor welding quality etc.) in certain root anchor pole (or certain linkage), just may cause coupled cable wire inefficacy, and bridge security is constituted a threat to.(2) the linkage quantity of anchor pole and cable wire is many, processing trouble; Linkage and rockbolt installation required precision are high, and field control difficulty is larger.(3) anchor pole need to rely on more complicated anchor device to carry out anchoring, and steel concrete anchorage beam will be set.(4) anchor pole and linkage are expensive, and anchorage structural cost is high.
Summary of the invention
The object of the present invention is to provide a kind of horizontal drawing cable bridge gravity anchor structure, overcome the deficiencies in the prior art, can improve the safety of horizontal drawing cable bridge anchorage, simplify site operation and installation, cost-saving.
The object of the invention is to be achieved through the following technical solutions: a kind of horizontal drawing cable bridge gravity anchor structure, comprise concrete anchorage body, it also comprise many groups along cable bridge direction be parallel to each other arrange lacing wire, cable wire, connect the linkage of lacing wire and cable wire, the cable saddle of the joist of supporting linkage and supporting cable wire, linkage is by the junction plate for connecting lacing wire, for connecting the pulley of cable wire, for bearing pin and the pin composition of fixed connecting plate and pulley, wherein, junction plate and pulley are evenly arranged on bearing pin and by pin and fix side by side, concrete anchorage body is cast on ground, lacing wire is embedded in concrete anchorage body, front end and the junction plate of lacing wire are integrally welded, the tail end of cable wire is socketed on pulley.
Described joist is embedded in concrete anchorage body.
The quantity of described pulley position identical with the radical of cable wire and pulley is corresponding one by one with cable wire.
Many lacing wires of described every group of junction plate and even-multiple are integrally welded.
Described joist adopts I-shape construction, and its end face is level or inclination, and joist adopts mode single or many layerings to arrange, wherein, the number of plies of many layerings is no more than three layers.
Described lacing wire is single row or multiple rows arranges, has the inclination angle theta of 10～15 ° between lacing wire and horizon
1, and inclination angle theta
1be not less than the inclination angle theta between cable wire and horizon
2.
The quantity of described lacing wire is more than the quantity of cable wire.
Described lacing wire positions in concrete anchorage body by locating rack, and locating rack is welded with reinforcing bar, and its arrangement pitch is 3～5 meters, adopts the mode of welding to be fixed between lacing wire and locating rack.
The distance being provided with between described cable saddle and joist between Baltimore groove and cable saddle and joist is not less than 5 meters.
Beneficial effect of the present invention is: by the bridge floor load Transmit evenly of horizontal drawing cable bridge to the lacing wire in anchorage, need be corresponding and must adopt the problem of Materials with High Strength one by one with cable wire thereby broken through lacing wire in traditional structure, the tens of even up to a hundred common stressed problems of lacing wire that allow are solved, greatly reduce material requirements and the difficulty of processing of lacing wire, particularly avoid the problem such as high-strength steel brittle fracture and welding difficulty, adopt concrete anchorage body structure simultaneously, anchorage and abutment are integrated, cancel anchor device after anchorage beam in traditional structure and beam, optimize the anchorage structure of cable bridge, simplify the construction technology of abutment and anchorage, make the installation quality of lacing wire be easy to control, compared with traditional structure, safe and reliable, simple in structure, easy construction, save cost.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is floor map of the present invention;
Fig. 3 is the structural representation of linkage of the present invention;
Fig. 4 is the layout plan of linkage of the present invention;
Fig. 5 is individual layer joist structural representation of the present invention;
Fig. 6 is multilayer joist structural representation of the present invention;
Fig. 7 is the structural representation of locating rack of the present invention;
Fig. 8 is the side schematic view of locating rack of the present invention.
Wherein, 1-concrete anchorage body, 2-lacing wire, 3-joist, 4-linkage, 5-cable saddle, 6-cable wire, 7-junction plate, 8-pulley, 9-bearing pin, 10-pin, 11-locating rack.
Detailed description of the invention
Further describe technical scheme of the present invention below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
As Fig. 1, Fig. 2, a kind of horizontal drawing cable bridge gravity anchor structure, comprise concrete anchorage body 1, it also comprise many groups along cable bridge direction be parallel to each other arrange lacing wire 2, cable wire 6, connect the linkage 4 of lacing wire 2 and cable wire 6, the cable saddle 5 of the joist 3 of supporting linkage 4 and supporting cable wire 6, as Fig. 3, Fig. 4, linkage 4 is by the junction plate 7 for connecting lacing wire 2, for connecting the pulley 8 of cable wire 6, bearing pin 9 and pin 10 for fixed connecting plate 7 and pulley 8 form, wherein, junction plate 7 and pulley 8 are evenly arranged on side by side on bearing pin 9 and by pin 10 and fix, the position of pulley 8 is positioned on the extended line of cable wire 6 from plane, junction plate 7 is symmetrically distributed between pulley 8 as far as possible, in a set of connection devices 4, the quantity of pulley 8 and junction plate 7 is more, and bearing pin 9 is one, and vertical with cable wire 6 from plane bearing pin 9, concrete anchorage body 1 is cast on ground, lacing wire 2 is embedded in concrete anchorage body 1, from plane, lacing wire 2 is arranged in parallel or approximate being arranged in parallel as far as possible, be evenly distributed in anchor body 1 concrete, the front end of lacing wire 2 and junction plate 7 are integrally welded, the tail end of cable wire 6 is socketed on pulley 8.
Described joist 3 is embedded in concrete anchorage body 1.
The quantity of described pulley 8 position identical with the radical of cable wire 6 and pulley 8 is corresponding one by one with cable wire 6.
Described every group of junction plate 7 is integrally welded with the many lacing wires 2 of even-multiple.
Described joist 3 adopts I-shape construction, its end face be level or inclination to adapt with lacing wire 2, joist 3 adopts the mode of single or many layerings to arrange, wherein, the number of plies of many layerings is no more than three layers, as Fig. 5, single holder fine strain of millet supporting construction, joist 3 supports the junction plate 7 of linkage 4; As Fig. 6, multilayer holder fine strain of millet supporting construction, point two-layer up and down, joist 3 supports the junction plate 7 of linkage 4.
Described lacing wire 2 is single row or multiple rows arranges, has the inclination angle theta of 10～15 ° between lacing wire 2 and horizon
1, and inclination angle theta
1be not less than the inclination angle theta between cable wire 6 and horizon
2.
The quantity of described lacing wire 2 is more than the quantity of cable wire 6.
As Fig. 7, Fig. 8, because the quantity of lacing wire 2 is more, its installation quality can have influence on the effect of anchorage, be as the criterion and determine position lacing wire 2 and ensure its indeformable, invariant position in anchor body 1 concreting process, locating rack 11 need to be set, and described lacing wire 2 positions in concrete anchorage body 1 by locating rack 11, and locating rack 11 use reinforcing bars are welded, its arrangement pitch is 3～5 meters, adopts the mode of welding to be fixed between lacing wire 2 and locating rack 11.
The distance being provided with between described cable saddle 5 and joist 3 between Baltimore groove and cable saddle 5 and joist 3 is not less than 5 meters.
Key step of the present invention is implemented as follows: (1) is stressed according to bridge layout and load situation calculating cable wire 6, carries out type selecting and the layout of cable wire 6; (2) design parameters of definite anchor body 1 such as and topographic and geologic condition stressed according to cable wire 6 and lacing wire 2, and determine accordingly the relevant parameters of joist 3 and linkage 4; (3) excavation abutment foundation; (4) according to the relevant parameters of lacing wire 2 relevant parameters compute location framves 11, the on-the-spot locating rack 11 of installing; (5) joist 3; (6) junction plate 7 and lacing wire 2 are welded, lacing wire 2 and junction plate 7 are installed, and lacing wire 2 and locating rack 11 are welded together; (6) formwork erection is built anchor body 1 concrete and cable saddle basis, and cable saddle 5 is installed after cable saddle base concrete reaches intensity; (7) bearing pin 9 is passed to the hole on junction plate 7 and pulley 8 in order one by one, pulley 8 and junction plate 7 are tied together, plug pin 10, so far complete the assembling of linkage 4; (8) pull line 6 is bearing on cable saddle 5 it, and the tail end of cable wire 6 is enclosed within on pulley 8, and stretch-draw cable wire 6 is until accurately blocking upper cable clamp behind location.
Linkage 4 is made up of junction plate 7, pulley 8, bearing pin 9 and pin 10.One end of junction plate 7 and lacing wire 2 are welded, and the reserved porose other end and bearing pin 9 are hinged, and pulley 8 is used for being connected with cable wire 6.The operating principle of linkage 4 is: the pulling force of all cable wires 6 is delivered on same bearing pin 9 by pulley 8 separately, then is delivered on each coupled piece junction plate 7 by bearing pin 9, is finally delivered to lacing wire 2 by junction plate 7.By linkage 4, reach the object that the Suo Li of cable wire 6 is born by lacing wire 2 equably, thereby the problems that traditional structure exists are solved, linkage 4 is bearing on joist 3 simultaneously, such structure is convenient accurately locates with linkage 4, and a part of power that linkage 4 is transmitted passes to basis.
Because the quantity of cable wire 6 and lacing wire 2 is conventionally more, a set of connection devices 4 can not be satisfied the demand sometimes, and this just need to arrange many set of connection devices 4; Sometimes for easy for installation, strengthen the distance between junction plate 7 and pulley 8, many set of connection devices 4 also can be set.Now, linkage 4 is by layered arrangement, and Fig. 4 has gone out the deployment scenarios of two set of connection devices 4.Generally, linkage 4 also should not be more than three covers.
Claims (7)
1. a horizontal drawing cable bridge gravity anchor structure, comprise concrete anchorage body (1), it is characterized in that: it also comprise many groups along cable bridge direction be parallel to each other arrange lacing wire (2), cable wire (6), connect the linkage (4) of lacing wire (2) and cable wire (6), the cable saddle (5) of the joist (3) of supporting linkage (4) and supporting cable wire (6), linkage (4) is by the junction plate for connecting lacing wire (2) (7), be used for connecting the pulley (8) of cable wire (6), for bearing pin (9) and pin (10) composition of fixed connecting plate (7) and pulley (8), wherein, junction plate (7) and pulley (8) are evenly arranged on side by side bearing pin (9) and go up and pass through pin (10) and fix, concrete anchorage body (1) is cast on ground, lacing wire (2) and joist (3) are embedded in concrete anchorage body (1), described lacing wire (2) positions in concrete anchorage body (1) by locating rack (11), the front end of lacing wire (2) and junction plate (7) are integrally welded, the tail end of cable wire (6) is socketed on pulley (8), the quantity of described pulley (8) position identical with the radical of cable wire (6) and pulley (8) is corresponding one by one with cable wire (6),
The construction sequence of this gravity anchor structure is as follows: (1) is stressed according to bridge layout and load situation calculating cable wire (6), carries out type selecting and the layout of cable wire (6); (2) and topographic and geologic condition stressed according to cable wire (6) determined the design parameters of concrete anchorage body (1) and lacing wire (2), and determines accordingly the relevant parameters of joist (3) and linkage (4); (3) excavation abutment foundation; (4) according to the relevant parameters of lacing wire (2) relevant parameters compute location frame (11), the on-the-spot locating rack (11) of installing; (5) joist (3); (6) by junction plate (7) and lacing wire (2) welding, lacing wire (2) and junction plate (7) are installed, and lacing wire (2) and locating rack (11) are welded together; (6) formwork erection is built anchor body (1) concrete and cable saddle basis, and cable saddle (5) is installed after cable saddle base concrete reaches intensity; (7) bearing pin (9) is passed to the hole on junction plate (7) and pulley (8) in order one by one, pulley (8) and junction plate (7) are tied together, plug pin (10), so far complete the assembling of linkage (4); (8) pull line (6) makes it be bearing in cable saddle (5) above, the tail end of cable wire (6) is enclosed within to pulley (8) upper, and stretch-draw cable wire (6) is until accurately blocking above cable clamp behind location.
2. horizontal drawing cable bridge gravity anchor structure according to claim 1, is characterized in that: described every group of junction plate (7) is integrally welded with the many lacing wires (2) of even-multiple.
3. horizontal drawing cable bridge gravity anchor structure according to claim 1, it is characterized in that: described joist (3) adopts I-shape construction, its end face is level or inclination, joist (3) adopts the mode of single or many layerings to arrange, wherein, the number of plies of many layerings is no more than three layers.
4. horizontal drawing cable bridge gravity anchor structure according to claim 1, is characterized in that: described lacing wire (2) is single row or multiple rows arranges, between lacing wire (2) and horizon, has the inclination angle theta of 10～15 °
1, and inclination angle theta
1be not less than the inclination angle theta between cable wire (6) and horizon
2.
5. horizontal drawing cable bridge gravity anchor structure according to claim 1, is characterized in that: the quantity of described lacing wire (2) is more than the quantity of cable wire (6).
6. horizontal drawing cable bridge gravity anchor structure according to claim 1, it is characterized in that: locating rack (11) is welded with reinforcing bar, its arrangement pitch is 3～5 meters, adopts the mode of welding to be fixed between lacing wire (2) and locating rack (11).
7. horizontal drawing cable bridge gravity anchor structure according to claim 1, is characterized in that: the distance being provided with between described cable saddle (5) and joist (3) between Baltimore groove and cable saddle (5) and joist (3) is not less than 5 meters.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310506846.8A CN103556572B (en) | 2013-10-24 | 2013-10-24 | Gravity type anchorage structure of horizontal drawing cable bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310506846.8A CN103556572B (en) | 2013-10-24 | 2013-10-24 | Gravity type anchorage structure of horizontal drawing cable bridge |
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| CN103556572A CN103556572A (en) | 2014-02-05 |
| CN103556572B true CN103556572B (en) | 2014-11-05 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032676B (en) * | 2014-05-08 | 2016-06-29 | 中国水电顾问集团贵阳勘测设计研究院有限公司 | A kind of horizontal drawing cable bridge steel wire rope self-anchored type bridge abutment structure |
| CN105040592B (en) * | 2015-06-12 | 2017-03-01 | 中国电建集团贵阳勘测设计研究院有限公司 | Horizontal pull rope bridge and erection method thereof |
| CN105155413B (en) * | 2015-08-14 | 2017-01-11 | 山东大学 | Partial non-bonded tunnel type compound anchorage system and method |
| CN106284072B (en) * | 2016-08-05 | 2018-03-02 | 同济大学 | Full ground anchor type cable-stayed bridge anchorage structures and its construction method |
| CN106968164B (en) * | 2017-05-16 | 2018-08-14 | 中国电建集团成都勘测设计研究院有限公司 | Cable way bridge abutment |
| CN111455838B (en) * | 2020-05-20 | 2024-08-16 | 中国电建集团成都勘测设计研究院有限公司 | Arched cableway bridge abutment |
| CN111535159A (en) * | 2020-05-20 | 2020-08-14 | 中国电建集团成都勘测设计研究院有限公司 | Cover plate type cableway bridge abutment |
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| JPH08144274A (en) * | 1994-11-21 | 1996-06-04 | Moriya Koki Kk | Permanent anchor execution method and hanging packer |
| CN202108048U (en) * | 2011-05-31 | 2012-01-11 | 深圳市博德维建筑技术有限公司 | Pulley type earth anchor used for tension cable pneumatic membrane building |
| CN102352601A (en) * | 2011-08-15 | 2012-02-15 | 四川省交通运输厅公路规划勘察设计研究院 | Tunnel type composite anchorage |
| CN103195073A (en) * | 2013-04-26 | 2013-07-10 | 东南大学 | Anchorage foundation for suspension bridge |
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2013
- 2013-10-24 CN CN201310506846.8A patent/CN103556572B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08144274A (en) * | 1994-11-21 | 1996-06-04 | Moriya Koki Kk | Permanent anchor execution method and hanging packer |
| CN202108048U (en) * | 2011-05-31 | 2012-01-11 | 深圳市博德维建筑技术有限公司 | Pulley type earth anchor used for tension cable pneumatic membrane building |
| CN102352601A (en) * | 2011-08-15 | 2012-02-15 | 四川省交通运输厅公路规划勘察设计研究院 | Tunnel type composite anchorage |
| CN103195073A (en) * | 2013-04-26 | 2013-07-10 | 东南大学 | Anchorage foundation for suspension bridge |
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