CN109610328A - Straddle-type monorail Simple-supported PC Rail Beam in Light Rail high accuracy install method - Google Patents

Straddle-type monorail Simple-supported PC Rail Beam in Light Rail high accuracy install method Download PDF

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Publication number
CN109610328A
CN109610328A CN201811550149.1A CN201811550149A CN109610328A CN 109610328 A CN109610328 A CN 109610328A CN 201811550149 A CN201811550149 A CN 201811550149A CN 109610328 A CN109610328 A CN 109610328A
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CN
China
Prior art keywords
support
rail
screw
rectangular
backing plate
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Pending
Application number
CN201811550149.1A
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Chinese (zh)
Inventor
张�杰
刘龙卫
辛国平
补正发
张宇
马磊
祖辉
刘勇兵
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China Railway Tunnel Group Yichu Co Ltd
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China Railway Tunnel Group Yichu Co Ltd
Priority date (The priority date 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 date listed.)
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Application filed by China Railway Tunnel Group Yichu Co Ltd filed Critical China Railway Tunnel Group Yichu Co Ltd
Priority to CN201811550149.1A priority Critical patent/CN109610328A/en
Publication of CN109610328A publication Critical patent/CN109610328A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges

Abstract

The invention discloses a kind of straddle-type monorail Simple-supported PC Rail Beam in Light Rail high accuracy install methods, including following construction procedure: step (1), temporary support structure is installed, temporary support structure includes welding the rectangular frame surrounded by four rectangular tubes, the rectangular frame is parallel to the horizontal plane, fining twisted steel is equipped with along the vertical direction respectively on four angles of rectangular frame, and the height of four fining twisted steels is identical, is arranged with screw-thread steel nut respectively at the position close to two end faces above and below rectangular tube on each fining twisted steel;Further include the first backing plate, be also placed with jack on the first backing plate, which is located in rectangular frame;Step (2), attachment rail beam, step (3) adjust track girder position, step (4), erection support, step (5), after pour section and pour, step (6), removing temporary support structure makes Bearing Seat Force.The method increase construction efficiency, reduces and adjust beam and measurement workload.

Description

Straddle-type monorail Simple-supported PC Rail Beam in Light Rail high accuracy install method
Technical field
The present invention relates to a kind of straddle-type monorail Simple-supported PC Rail Beam in Light Rail high accuracy install methods, belong to track girder construction technology Field.
Background technique
Straddle type monorail beam type in rolling stock section uses Simple-supported PC Rail Beam in Light Rail structure, deck-molding 180cm, deck-siding 69cm, section For rectangular section.Because track girder installation back rest bottom is apart from ground level 62cm, height difference is smaller, is currently using economic convenient pillow The mode that grillage divides into simple sandbox is set a roof beam in place, and tie dimensions are length × width × height=80cm × 20cm × 20cm.Due to purchasing pillow The wooden compactness is inconsistent, and the lumps of wood need to be laid with 3 layers, deforms larger (having 3~5cm sedimentation) after falling beam, needs cushioning steel plate repeatedly, It falls that the beam time is long, reduces the efficiency set a roof beam in place.In addition it is observed after beam body installation in different periods, discovery still has sedimentation and inclines Oblique situation, beam body is longer stable period, need to repeatedly adjust beam and observe repeatedly, waste a large amount of manpowers, be otherwise unable to reach design It is required that.
Summary of the invention
In view of the above drawbacks of the prior art, the present invention provides a kind of straddle-type monorail Simple-supported PC Rail Beam in Light Rail high-precision peace Dress method is required with meeting track girder design and construction, while being accelerated construction efficiency, being reduced and adjust beam and measurement workload.
Technical solution of the present invention is as follows:
A kind of straddle-type monorail Simple-supported PC Rail Beam in Light Rail high accuracy install method, including following construction procedure:
Step (1), installs temporary support structure, and the temporary support structure includes being surrounded by four rectangular tube welding Rectangular frame, the rectangular frame are parallel to the horizontal plane, and are equipped with essence along the vertical direction respectively on four angles of the rectangular frame Screw-thread steel is rolled, and the height of four fining twisted steels is identical, close to the rectangle on each described fining twisted steel It manages and is cased with screw-thread steel nut respectively at the position of two end faces up and down;It further include the first backing plate, four fining twisted steel peaces On first backing plate, it is also placed with jack on first backing plate, which is located in the rectangular frame;Specifically Installation process is to be laid on first backing plate below track girder, by two wherein opposite rectangular tube cross-bridges direction cloth Set, in addition two opposite rectangular tubes are along the bridge arranged, by four rectangular tubes welding back walls at rectangular frame It is placed in below track girder, four fining twisted steels are placed on first backing plate, pass through the screw-thread steel nut adjustment institute Rectangular tube center absolute altitude is stated to design requirement is met, then being measured with horizontal ruler will be described after the rectangular tube determines level Screw-thread steel nut is tightened, and the installation of the temporary support structure is completed;
Track girder after the completion of the step (1), is slowly placed on described by step (2), attachment rail beam by crane On rectangular frame complete fall beam work, when falling beam according to marked on cushion cap beam-ends line, beam sideline be aligned;
Step (3) adjusts track girder position, detects after falling beam to back absolute altitude, middle line and verticality, discovery has It after sedimentation or inclination, is adjusted using the jack pair beam body elevation, plan-position deviation, by beam body LFM signal to completely After foot design, then the screw-thread steel nut high and low position of four upper and lower end faces of fining twisted steel is finely adjusted, works as tune The screw-thread steel nut is tightened after being close to the rectangular tube with the beam bottom of track girder;
Step (4), erection support after the completion of the step (3), carry out support installation according to design model, by support Lower steel plate is placed in pinner preformed hole, and vertically and horizontally cross hairs finds support center to steel plate mark out on the support, it is ensured that support After plan-position and elevation meet design requirement, support is fixed, support carries out anchor hole grouting works after accurately installing, and completes Support installation;
Step (5), after pour section and pour, after the track girder is accurately positioned and is installed support, after first installing A section bottom plate is poured, then reinforcing bar and side form are installed, by checking and accepting after-pouring concrete;
Step (6), removing temporary support structure makes Bearing Seat Force.
Preferably, the step (6) is specially to pour after section concrete intensity reaches design strength to remove interim branch after Support structure makes Bearing Seat Force, and when dismounting first unscrews the screw-thread steel nut below the rectangular tube, keeps described in four Rectangular tube simultaneously operating integrally removes the temporary support structure after the rectangular frame de-orbits beam beam bottom.
Preferably, the lower end of each fining twisted steel is provided with the second backing plate, which is fixed on On first backing plate, and the surrounding on each described fining twisted steel at the position of its lower end is provided with reinforcement Plate, the stiffening plate are welded to connect with the fining twisted steel and the second backing plate respectively.
Preferably, be also cased with position limiting structure on each described fining twisted steel, the position limiting structure be it is up big and down small, The hollow columnar structures of upper short lower length, and the upper end of the position limiting structure and the screw-thread steel spiral shell below the rectangular tube It is close to female lower end.
The utility model has the advantages that the present invention passes through installation temporary support structure in construction, and by adjusting screw-thread steel nut Highly come the height for adjusting rectangular tube, after absolute altitude to be measured meets design requirement, tightens screw-thread steel nut and unload jack, it is complete It is very easy to use at tune beam process, while avoiding and flexible contact deformation occurs between beam body and support construction and causes anti- Polyphony beam improves construction efficiency, reduces and adjust beam and measurement workload.
Detailed description of the invention
Fig. 1 is the main view of temporary support structure of the invention;
Fig. 2 is the left view of Fig. 1.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples:
A kind of straddle-type monorail Simple-supported PC Rail Beam in Light Rail high accuracy install method, including following construction procedure:
Step (1) installs temporary support structure, and as shown in Figure 1 and Figure 2, which includes by four Rectangular tube 1 welds the rectangular frame surrounded, which is parallel to the horizontal plane, respectively along vertical on four angles of rectangular frame Direction is equipped with fining twisted steel 2, and the height of four fining twisted steels 2 is identical, each described fining twisted steel 2 On close to about 1 two end face of rectangular tube position at be cased with screw-thread steel nut 3 respectively;It further include the first backing plate 5, four A fining twisted steel 2 is mounted on first backing plate 5, is also placed with jack 4 on the first backing plate 5, which is located at described In rectangular frame;The lower end of each fining twisted steel 2 is provided with the second backing plate 7, which is fixed on described first On backing plate 5, and the surrounding on each fining twisted steel 2 at the position of its lower end is provided with stiffening plate 6, the stiffening plate 6 are welded to connect with the fining twisted steel 2 and the second backing plate 7 respectively;Rectangular frame is downward after beam body is placed up in order to prevent Sliding, is also arranged with position limiting structure 9 on each fining twisted steel 2, the position limiting structure 9 is generally up big and down small, it is upper it is short under Long hollow columnar structures, the i.e. upper diameter of position limiting structure 9 are greater than lower diameter, and upper length is less than lower length, and limits It is close to the lower end for the screw-thread steel nut 3 for being located at 1 lower section of rectangular tube the upper end of bit architecture 9;
Specific installation process is to detect after ground is compacted leveling processing to foundation bearing capacity, reach 260Kpa with By the first backing plate 5 according to the long 150cm in cross-bridges direction, the along the bridge closely cushion cap side concrete laying carrying of the long direction 100cm after upper Power distribution bottom arranges wherein opposite two 1 direction across bridge of rectangular tube, in addition two opposite rectangular tubes 1 along bridge to arrangement, By four rectangular tubes 1 weld back walls at rectangular frame be placed in 8 lower section of track girder, four fining twisted steels 2 are placed in the second backing plate 7 On, the second backing plate 7 is placed on the first backing plate 5, by screw-thread steel nut 3 adjust 1 center absolute altitude of rectangular tube to meet design It is required that then being tightened screw-thread steel nut 3 with after the determining level of horizontal ruler measurement rectangular tube 1, the peace of temporary support structure is completed Dress;
Step (2), attachment rail beam start bale handle and Luo Liang, pass through 2 220t automobiles after the completion of step (1) Bale handle is hung, 75t suspender belt is respectively adopted at track girder (8) beam body both ends 40cm beam body is bundled and is hung over and risen on automobile suspension hook Beam, two cranes are worked in coordination, are assumed unified command of, and beam body are slowly placed on temporary support structure and are completed to fall beam work, fall beam When according to marked on cushion cap beam-ends line, beam sideline be aligned;
Step (3) adjusts track girder position, detects after falling beam to back absolute altitude, middle line and verticality, discovery has After sedimentation or inclination, the beam body elevation of track girder 8, plan-position deviation are adjusted using jack 4, by the linear tune of beam body After the whole design to satisfaction, then 3 high and low position of screw-thread steel nut of four upper and lower end faces of fining twisted steel 2 is finely adjusted, works as tune Screw-thread steel nut 3 is tightened after being close to rectangular tube 1 with the beam bottom of track girder 8;
Step (4), erection support carry out support installation according to design model, due to riding on after the completion of step (3) Formula single track is higher to required precision, and using progress synchronous with measurement is installed, it is pre- that four anchor bolts of support lower steel plate are placed on pinner In boxing out, vertically and horizontally cross hairs finds support center to steel plate mark out on the support, and survey crew measures center Then positioning passes through quadrangle review, it is ensured that after support plan-position and elevation meet design requirement, support is fixed, support again Anchor hole grouting works are carried out after accurate installation, complete support installation;
Step (5), after pour section and pour, after track girder 8 is accurately positioned and is installed support, first installs and pour section afterwards Bottom plate, then reinforcing bar and side form are installed, by checking and accepting after-pouring concrete;
Step (6), removing temporary support structure makes Bearing Seat Force, 10 concrete strength of section is specially poured after reaches and set Removing temporary support structure after meter intensity makes Bearing Seat Force, and when dismounting first unscrews the screw-thread steel nut 3 positioned at 1 lower section of rectangular tube, Keep four 1 simultaneously operatings of rectangular tube, after rectangular frame de-orbits 8 beam bottom of beam, temporary support structure is integrally removed.
It is made it should be appreciated that those skilled in the art according to the present invention can conceive without creative work Many modifications and variations.Therefore, all technician in the art are led on the basis of existing technology under this invention's idea The available technical solution of logical analysis, reasoning, or a limited experiment is crossed, it all should be in the guarantor being defined in the patent claims It protects in range.

Claims (4)

1. a kind of straddle-type monorail Simple-supported PC Rail Beam in Light Rail high accuracy install method, which is characterized in that including following construction procedure:
Step (1), installs temporary support structure, and the temporary support structure includes welding the square surrounded by four rectangular tubes (1) Shape frame, the rectangular frame are parallel to the horizontal plane, and are equipped with finish rolling along the vertical direction respectively on four angles of the rectangular frame Screw-thread steel (2), and the height of four fining twisted steels (2) is identical, close to institute on each described fining twisted steel (2) It states rectangular tube (1) and is arranged with screw-thread steel nut (3) respectively at the position of two end faces up and down;It further include the first backing plate (5), four The fining twisted steel (2) is mounted on first backing plate (5), is also placed with jack (4) on first backing plate (5), should Jack (4) is located in the rectangular frame;Specific installation process is that first backing plate (5) is laid under track girder (8) Two wherein opposite rectangular tube (1) cross-bridges directions are arranged that in addition opposite two rectangular tubes (1) are along bridge by side Direction arrangement, by four rectangular tubes (1) welding back walls at rectangular frame be placed in below track girder (8), four essences It rolls screw-thread steel (2) to be placed on first backing plate (5), rectangular tube (1) centre bit is adjusted by the screw-thread steel nut (3) Absolute altitude is set to design requirement is met, then with horizontal ruler measure the rectangular tube (1) determine it is horizontal after by the screw-thread steel nut (3) it tightens, completes the installation of the temporary support structure;
Track girder (8) after the completion of the step (1), is slowly placed on described by step (2), attachment rail beam by crane On rectangular frame complete fall beam work, when falling beam according to marked on cushion cap beam-ends line, beam sideline be aligned;
Step (3) adjusts track girder position, detects after falling beam to back absolute altitude, middle line and verticality, and discovery has sedimentation Or after inclination, beam body elevation, plan-position deviation are adjusted using the jack (4), by beam body LFM signal to completely After foot design, then screw-thread steel nut (3) high and low position of the upper and lower end face of four fining twisted steels (2) is carried out micro- It adjusts, tightens the screw-thread steel nut (3) after being adjusted to the rectangular tube (1) and being close to the beam bottom of track girder (8);
Step (4), erection support after the completion of the step (3), carry out support installation according to design model, by steel under support Plate is placed in pinner preformed hole, and vertically and horizontally cross hairs finds support center to steel plate mark out on the support, it is ensured that support plane After position and elevation meet design requirement, support is fixed, support carries out anchor hole grouting works after accurately installing, and completes support Installation;
Step (5), after pour section and pour, after the track girder (8) are accurately positioned and are installed support, first install and pour afterwards Section bottom plate, then reinforcing bar and side form are installed, by checking and accepting after-pouring concrete;
Step (6), removing temporary support structure makes Bearing Seat Force.
2. straddle-type monorail Simple-supported PC Rail Beam in Light Rail high accuracy install method according to claim 1, it is characterised in that: described Step (6) is specially to pour dismounting temporary support structure after section (10) concrete strength reaches design strength after to make Bearing Seat Force, First unscrew the screw-thread steel nut (3) below the rectangular tube (1) when dismounting, keeps four rectangular tubes (1) same Step operation, after the rectangular frame de-orbits beam (8) beam bottom, the temporary support structure is integrally removed.
3. straddle-type monorail Simple-supported PC Rail Beam in Light Rail high accuracy install method according to claim 1 or 2, it is characterised in that: The lower end of each fining twisted steel (2) is provided with the second backing plate (7), which is fixed on described first On backing plate (5), and the surrounding on each described fining twisted steel (2) at the position of its lower end is provided with stiffening plate (6), which is welded to connect with the fining twisted steel (2) and the second backing plate (7) respectively.
4. straddle-type monorail Simple-supported PC Rail Beam in Light Rail high accuracy install method according to claim 3, it is characterised in that: every Position limiting structure (9) are also cased on one fining twisted steel (2), which is in up big and down small, upper short lower length Columnar structures, and the upper end of the position limiting structure (9) and the screw-thread steel nut (3) below the rectangular tube (1) Lower end be close to.
CN201811550149.1A 2018-12-18 2018-12-18 Straddle-type monorail Simple-supported PC Rail Beam in Light Rail high accuracy install method Pending CN109610328A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110886221A (en) * 2019-10-31 2020-03-17 柳州市轨道交通工程有限责任公司 Simply-supported system track beam erecting method
CN111156958A (en) * 2019-12-31 2020-05-15 中国核工业华兴建设有限公司 Method for measuring leveling of spent fuel reactor dry type shielding tank supporting rail
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
CN112696050A (en) * 2020-12-24 2021-04-23 江苏建科土木工程技术有限公司 Frame building jacking device, integral jacking method and jacking deviation rectifying method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110886221A (en) * 2019-10-31 2020-03-17 柳州市轨道交通工程有限责任公司 Simply-supported system track beam erecting method
CN111156958A (en) * 2019-12-31 2020-05-15 中国核工业华兴建设有限公司 Method for measuring leveling of spent fuel reactor dry type shielding tank supporting rail
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
CN112696050A (en) * 2020-12-24 2021-04-23 江苏建科土木工程技术有限公司 Frame building jacking device, integral jacking method and jacking deviation rectifying method

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