CN103711082B - The cross-saddle single-track traffic construction method of overhead section - Google Patents
The cross-saddle single-track traffic construction method of overhead section Download PDFInfo
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- CN103711082B CN103711082B CN201310742655.1A CN201310742655A CN103711082B CN 103711082 B CN103711082 B CN 103711082B CN 201310742655 A CN201310742655 A CN 201310742655A CN 103711082 B CN103711082 B CN 103711082B
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- pier stud
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Abstract
The present invention relates to bridge field, be specifically related to the cross-saddle single-track traffic construction method of overhead section, it is characterized in that: bridge pier is in the cast in situs of road both sides, and crossbeam adopts prefabrication, and the installation that the form of construction work of on-site hoisting completes between crossbeam and bridge pier is fixed; Crossbeam arranges reserved chamber, the steel plate in each of reserved chamber welds dowel, then pulling force bearing anchor case is positioned in reserved chamber, then carry out cast-in-site.Advantage of the present invention is: the while of ensureing gooseneck construction quality, shorten the construction period, decreases the impact of traffic above-ground and eliminates Lu Zhongman hall frame and to construct the potential safety hazard brought; Solve the anchoring installation question of monorail transit pulling force bearing, installation accuracy is high, and support effects is good.
Description
Technical field
The present invention relates to bridge field, be specifically related to the cross-saddle single-track traffic construction method of overhead section.
Background technology
Cross-saddle single-track traffic elevated line trackside in road is changed mutually, distance between centers of tracks is larger and multi-thread place need arrange gate pier structure.Common practices adopts prestressed reinforced concrete construction gate pier crossbeam, Full space support construction, adopt during steel work and the pulling force bearing of supporting monorail transit is directly welded on steel beam column, but above-mentioned way shortcoming is obvious: first, because needs set up full framing in road, road traffic affects comparatively large and there is potential safety hazard over the ground; Secondly, because pulling force bearing is a complex system, require higher to installation accuracy, directly adopt welding manner to be difficult to meet required precision, required precision cannot be met and easily potential safety hazard is caused to monorail transit circuit.
Summary of the invention
The object of the invention is according to above-mentioned the deficiencies in the prior art, provide the cross-saddle single-track traffic construction method of overhead section, build integral after prefabricated crossbeam being lifted fixing concrete pier stud again, not only shorten the construction period, decrease the potential safety hazard that impact and the elimination Lu Zhongman hall frame of traffic above-ground are brought; Meanwhile, by being positioned in the prefabricated cavity of crossbeam by pulling force bearing anchor case, cast in situs is integral again, and its installation accuracy and bearing strength are protected.
The object of the invention realizes being completed by following technical scheme:
The cross-saddle single-track traffic construction method of overhead section, described overhead section primarily of crossbeam, and support described crossbeam and be positioned at the pier stud composition of its both sides, it is characterized in that: described construction method at least comprises the following steps:
Install box built-in fitting at described pier stud top, welded by the formation coaming plate of described box built-in fitting with the reserved main muscle of described pier stud, calibration after-pouring concrete completes the installation of described box built-in fitting, and the box built-in fitting after building has a reserved short column;
Described crossbeam is steel box-girder, and its two ends lower wing plate is preset with installing hole respectively with the corresponding installation site of described reserved short column, has reserved chamber above described crossbeam beam body;
On described transverse beam lifting to described pier stud, described installing hole is sleeved on described reserved short column, and has been fastened by bolts interim location;
In described reserved chamber, pulling force bearing is installed;
Described pulling force bearing sets up rail beam and secondary dead load;
Finally the junction plate of described crossbeam and described box built-in fitting is welded and fixed, tighten described bolt and in the steel case of described crossbeam concreting.
Described box built-in fitting comprises level board and vertical coaming plate, and wherein said vertical coaming plate arranges along described pier stud girth and welds with the reserved main muscle of described pier stud respectively, and described level board and described vertical coaming plate form case structure.
Base plate is set in described case structure, prefabricated short column described in described base plate fixed bearing.
In described reserved chamber, install pulling force bearing, refer to and weld dowel on described reserved chamber cavity each steel plate, described pulling force bearing lifting put in place, behind calibration location, concreting makes pulling force bearing and described crossbeam be integrally fixed structure.
Advantage of the present invention is: the while of ensureing gooseneck construction quality, shorten the construction period, decreases the potential safety hazard brought impact and the elimination Lu Zhongman hall frame of traffic above-ground; Solve the anchoring installation question of monorail transit pulling force bearing, installation accuracy is high, and support effects is good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the johning knot composition of pier stud and crossbeam in the present invention;
Fig. 3 is the johning knot composition of middle cross beam of the present invention and pulling force bearing;
Fig. 4 is the elevation of middle cross beam of the present invention;
Fig. 5 is the upward view of Fig. 4;
Fig. 6 is the sectional view of Fig. 4;
Fig. 7 is the elevation of pier stud in the present invention;
Fig. 8 is pier stud capital top view in the present invention;
Fig. 9 is the transverse sectional view of Fig. 8;
Figure 10 is the longitudinal sectional view of Fig. 8.
Detailed description of the invention
Feature of the present invention and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that the understanding of technician of the same trade:
As Figure 1-10 shows, number in the figure 1-20 is respectively: after pier stud 1, crossbeam 2, pulling force bearing 3, reserved short column 4, crossbeam after pouring concrete 5, pier stud in pouring concrete 6, vertical coaming plate 7, bolt 8, dowel 9, cavity after pouring concrete 10, reserved chamber 11, installing hole 12, the main muscle of bridge pier 13, bolt hole 14, level board 15, base plate 16, junction plate 17, lower wing plate 18, box built-in fitting 19, bearing anchor case 20.
Embodiment: by the construction method of overhead section, the cross-saddle single-track traffic in the present embodiment is applicable to that trackside in road is changed mutually, distance between centers of tracks is larger and all the other some complex road conditions such as multi-thread place, causes road traffic considerable influence over the ground and the situation that there is potential safety hazard to avoid needing in prior art building in road full framing.As shown in Figure 1, the overhead segment structure of monorail transit in the present embodiment is made up of pier stud 1, crossbeam 2, its middle cross beam 2 is by pier stud 1 fixed bearing being positioned at its two ends, and fixed support two pulling force bearings 3 above crossbeam 2, each pulling force bearing 3 supports a single track respectively.
Construction method in the present embodiment specifically comprises the following steps:
Build pier stud 1 in the road both sides of construction, build a box built-in fitting 19 at pier stud 1 top.As is seen in figs 7-10, the box built-in fitting 19 of pier stud 1 capital adopts coaming plate structure, and this coaming plate structure plays positioning support and reserves short column 4, and by effect that it is integrally formed with pier stud 1.Box built-in fitting 19 is made up of vertical coaming plate 7, level board 15 and base plate 16, and wherein vertical coaming plate 7 arranges around the capital circumferential direction of pier stud 1 and welds with the main muscle 13 of the bridge pier on pier stud 1, forms the casting area of pouring concrete 6 after a pier stud; Base plate 16 is weldingly fixed in the middle part of the region that is made up of vertical coaming plate 7, and its upper surface is fixedly connected with the reserved short column 4 of supporting; Level board 15 welds the region upper shed encapsulating and be made up of vertical coaming plate 7, and the height due to reserved short column 4 is greater than the height of vertical coaming plate 7, so the coverage of level board 15 plate body is to the cylinder reserving short column 4 by the upper limb of vertical coaming plate 7.Casting area in the box built-in fitting be made up of vertical coaming plate 7, level board 15 and base plate 16 is filled by pouring concrete after pier stud 6, realizes reserved fixing between short column 4 and pier stud 1.Peripheral symmetrical both sides are provided with a plate 17, and junction plate 17 and pier stud 1 fix, and offer some bolts hole 14.
As Figure 4-Figure 6, crossbeam 2 is prefabricate gooseneck, and its two ends lower wing plate 18 offers installing hole 12 respectively with the corresponding installed position of reserved short column 4, and the beam body of crossbeam 2 offers reserved chamber 11; Crossbeam 2 lower wing plate 18 of installing hole 12 both sides has the bolt hole matched with bolt hole 14 position, size.Offer two reserved chambeies 11 above prefabricated crossbeam 2, reserved chamber 11 is respectively as the installation position of the pulling force bearing 3 of fixed bearing two monorail transit circuits.
Crossbeam 2 is lifted on pier stud 1, be sleeved on the reserved short column 4 of pier stud 1 by the installing hole 12 under crossbeam 2, by bolt 8 junction plate 17 on the lower wing plate 18 at installing hole 12 place and box built-in fitting 19 be fastenedly connected to make to form between crossbeam 2 and pier stud 1 and locate temporarily.
In reserved chamber 11, weld dowel 9 makes it form bearing anchor case 20, pulling force bearing 3 is lifted in reserved chamber 11, after in the location after-pouring cavity of calibration pulling force bearing 3, pouring concrete 10 makes pulling force bearing 3 be fixedly attached on crossbeam 2 by reserved chamber 11, and is integrally formed structure with it.
Loosen the bolt 8 between installing hole 12 and junction plate 17, then on pulling force bearing 3, set up rail beam and construction secondary dead load, be converted to after rail beam and other secondary dead load have been constructed and be rigidly connected, this kind of mode reduces pier stud bending square, improves structure stress.
The lower wing plate at installing hole 12 place is welded fastening with the junction plate 17 of reserved short column 4, tights a bolt 8 and pouring concrete 5 after building the crossbeam of crossbeam.
The present embodiment is in the specific implementation: the vertical coaming plate 7 around pre-buried pier stud 4 first welds with the main muscle 13 of pier stud, then welds all the other each plates again, calibrates after-pouring concrete and completes reserved short column 4 and install.
Lifting is in advance at the crossbeam 2 that factory process is made, and be directly sleeved on the reserved short column 4 at pier stud 1 top by gooseneck 2 two ends lower wing plate installing hole 12 during erection, the bolt 8 tightening beam-ends is located temporarily.
Welded dowel 9 in reserved chamber 11 on crossbeam 2, lifting pulling force bearing 3, builds pouring concrete 10 after in cavity again after calibration.
Claims (4)
1. the cross-saddle single-track traffic construction method of overhead section, described overhead section primarily of crossbeam, and support described crossbeam and be positioned at the pier stud composition of its both sides, it is characterized in that: described construction method at least comprises the following steps:
Install box built-in fitting at described pier stud top, welded by the formation coaming plate of described box built-in fitting with the reserved main muscle of described pier stud, calibration after-pouring concrete completes the installation of described box built-in fitting, and the box built-in fitting after building has a reserved short column;
Described crossbeam is steel box-girder, and its two ends lower wing plate is preset with installing hole with the corresponding installation site of described reserved short column, has reserved chamber above described crossbeam beam body;
On described transverse beam lifting to described pier stud, described installing hole is sleeved on described reserved short column, and has been fastened by bolts interim location;
In described reserved chamber, pulling force bearing is installed;
Described pulling force bearing sets up rail beam and construction secondary dead load;
Finally the junction plate of described crossbeam and described box built-in fitting is welded and fixed, tighten described bolt and in the steel case of described crossbeam concreting.
2. a kind of cross-saddle single-track traffic according to claim 1 construction method of overhead section, it is characterized in that: described box built-in fitting comprises level board and vertical coaming plate, wherein said vertical coaming plate arranges along described pier stud girth and welds with the reserved main muscle of described pier stud respectively, and described level board and described vertical coaming plate form case structure.
3. a kind of cross-saddle single-track traffic according to claim 2 construction method of overhead section, is characterized in that: in described case structure, arrange base plate, and described base plate fixed bearing reserves short column.
4. a kind of cross-saddle single-track traffic according to claim 1 construction method of overhead section, it is characterized in that: in described reserved chamber, pulling force bearing is installed, refer to and weld dowel on described reserved chamber cavity each steel plate, described pulling force bearing lifting is put in place, behind calibration location, concreting makes pulling force bearing and described crossbeam be integrally fixed structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310742655.1A CN103711082B (en) | 2013-12-30 | 2013-12-30 | The cross-saddle single-track traffic construction method of overhead section |
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| CN201310742655.1A CN103711082B (en) | 2013-12-30 | 2013-12-30 | The cross-saddle single-track traffic construction method of overhead section |
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| CN103711082A CN103711082A (en) | 2014-04-09 |
| CN103711082B true CN103711082B (en) | 2015-09-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104032681A (en) * | 2014-06-30 | 2014-09-10 | 北京交通大学 | Linear adjustment method of track girder bridges of straddle-type monorail transportation simple-support-first rigid-framework-second system |
| CN105821773B (en) * | 2016-05-23 | 2017-08-11 | 中交第一公路工程局有限公司 | The electronic penetrating device of Precast T-Beam hogging moment steel strand wires |
| CN108374296B (en) * | 2018-02-27 | 2019-05-03 | 中建五局土木工程有限公司 | The construction method of straddle type monorail rail tracks installation |
| CN108532448A (en) * | 2018-07-04 | 2018-09-14 | 深圳市市政设计研究院有限公司 | A kind of concrete circular stub consolidates connecting structure with girder steel |
| CN111236080A (en) * | 2020-03-03 | 2020-06-05 | 重庆单轨交通工程有限责任公司 | Door-shaped pier steel beam support installation method and door-shaped pier steel beam support installation component |
| CN111691690A (en) * | 2020-05-28 | 2020-09-22 | 中铁十局集团青岛工程有限公司 | Steel beam construction positioning detection device and positioning detection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CH563512A5 (en) * | 1971-12-31 | 1975-06-30 | Mannesmann Leichtbau Gmbh | |
| CN2367634Y (en) * | 1999-05-18 | 2000-03-08 | 重庆市轨道交通总公司 | Straddle-seat type tension-bearing-seat for single track of communication |
| CN2423313Y (en) * | 2000-02-11 | 2001-03-14 | 宝鸡桥梁工厂 | Straddle type track traffic PC track beam support |
| CN2426489Y (en) * | 2000-06-07 | 2001-04-11 | 国营重庆重型铸锻厂 | Single-track traffic PC rail beam cast steel supporter |
| JP3811618B2 (en) * | 2001-01-17 | 2006-08-23 | 株式会社日立製作所 | Stretched monorail track girder and installation method thereof |
| CA2349315A1 (en) * | 2001-05-11 | 2002-11-11 | Scott E. Anderson | Structural support for elevated railway |
| CN201144398Y (en) * | 2007-12-27 | 2008-11-05 | 中铁二院工程集团有限责任公司 | Straddling type track traffic elevated 'bridge-build' structure |
| JP5149853B2 (en) * | 2009-03-31 | 2013-02-20 | 大成建設株式会社 | Construction method of track girder, box girder and box girder for straddle type monorail |
| CN102817289B (en) * | 2012-07-20 | 2015-09-02 | 重庆川东船舶重工有限责任公司 | Flexible turnout beam section for saddle type single track traffic track |
| CN103215886B (en) * | 2013-04-12 | 2015-06-24 | 北京交通大学 | Novel short segment steel box-concrete combined beam |
| CN203174446U (en) * | 2013-04-12 | 2013-09-04 | 北京交通大学 | Straddle-type monorail traffic rigid frame system |
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