CN101418542A - Cable system construction method of spatial self-anchored rope-suspension bridge - Google Patents

Cable system construction method of spatial self-anchored rope-suspension bridge Download PDF

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Publication number
CN101418542A
CN101418542A CNA2008102032069A CN200810203206A CN101418542A CN 101418542 A CN101418542 A CN 101418542A CN A2008102032069 A CNA2008102032069 A CN A2008102032069A CN 200810203206 A CN200810203206 A CN 200810203206A CN 101418542 A CN101418542 A CN 101418542A
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China
Prior art keywords
cable
main push
towing rope
bridge
interim
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CNA2008102032069A
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Chinese (zh)
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CN101418542B (en
Inventor
沈洋
郝维索
张剑英
臧瑜
戴建国
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上海市政工程设计研究总院
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Publication of CN101418542A publication Critical patent/CN101418542A/en
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Publication of CN101418542B publication Critical patent/CN101418542B/en

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Abstract

The invention discloses a method for constructing a cable system of a spatial self-anchoring type suspension bridge. The method is characterized in that a cat path and a main cable are arranged on the vertical surface to form a hollow cable type; and the completed bridge linearity of the main cable is formed through traversing the main cable and stretching slings. Through the proposal, the method has obvious technical characteristics: 1. the main cable is arranged on the vertical surface and is favorable for braiding the cable; 2. the cable tightening operation is carried out on the vertical surface so as to be favorable for tightening the cable and ensuring the gap rate; and 3. firstly, a temporary inhaul cable is used to traverse the main cable in order that the main cable linearity is close to a completed bridge state; and secondly, the sling is stretched and is favorable for controlling the spatial angle of a cable clip and positioning the sling in a transverse oblique anchor tube. The method has the advantages that the construction method is simple, is favorable for the braiding and molding of the main cable and the spatial positioning of the angles of the cable clip and the slings and realizes the completed bridge linearity of the main cable.

Description

A kind of cable system construction method of spatial self-anchored rope-suspension bridge

Technical field:

The present invention relates to the technical field of construction of bridge, specifically a kind of cable system construction method of spatial self-anchored rope-suspension bridge.

Background technology:

Self-anchored suspension bridge is owing to will transmit the horizontal force of main push-towing rope by stiff girder, necessary first erection construction support or trestle aspect construction, on support or trestle, set up stiff girder then, set up main push-towing rope at last again, hoist cable is installed, carry out the adjustment of hoist cable power, make the deadweight of stiff girder be delivered to main push-towing rope, have the process of individual system conversion by hoist cable.

Traditional parallel rope face self-anchored suspension bridge funicular system construction is in the braided cable moulding of vertical plane, then vertical Plane Installation hoist cable, the conversion of vertical plane system.But construction is not all right for space self-anchored suspension bridge funicular system, because at empty cable state main push-towing rope is the vertical plane, becoming the bridge state but is the inclined-plane, space, exist one from the plane to the space transforming process, change bad meeting and make the angular deviation of cord clip otic placode excessive, even reversing appears in main push-towing rope, drum silk phenomenon, thereby make main push-towing rope, cord clip unbalance stress, reduce safety factor, influence workmanship.

Therefore, to adopt which kind of job practices to carry out funicular system construction be very important to the space self-anchored suspension bridge.

Summary of the invention:

An object of the present invention is to provide a kind of cable system construction method of spatial self-anchored rope-suspension bridge, so that solve the construction difficult problem of space self-anchored suspension bridge funicular system.

To achieve these goals, technical scheme of the present invention is: set up cat road and main push-towing rope at vertical guide, form empty cable type; Adopt the interim hoist cable stretch-draw of multiple spot, main push-towing rope traversing, make main push-towing rope near becoming bridge linear; Carry out the adjustment of cord clip space angle then,, form main push-towing rope and become the bridge line style, finish the system conversion by the permanent hoist cable of root stretch-draw.

Concrete steps comprise: A, set up cat road and main push-towing rope at vertical guide; B, the tight cable of vertical guide; C, interim cord clip, interim hoist cable are installed, permanent cord clip vertical guide initial alignment; D, in to stride symmetrical stretch-draw many to interim drag-line, will in stride that main push-towing rope is traversing to be flared near becoming bridge linear; E, permanent cord clip angle are accurately located, permanent hoist cable stretch-draw anchor, saddle pushing tow; F, full-bridge Suo Li adjust, and remove interim cord clip and interim hoist cable; G, main push-towing rope twine silk, protection, the ancillary works construction.For pick up speed, also dismountable interim pier support, deck paving in step G.

The tangible technical characterstic that the present invention constitutes by the such scheme feature, one, vertical guide sets up main push-towing rope, helps braided cable; Its two, tight cable is operated in vertical guide to carry out, and helps tight cable, guarantees void content; Its three, earlier with the traversing main push-towing rope of interim drag-line, make the main push-towing rope line style near one-tenth bridge state, stretch-draw hoist cable again helps the control and the location of hoist cable in the lateral inclination anchor tube of cord clip space angle.The invention has the advantages that job practices is simple, be beneficial to the space orientation of moulding of main push-towing rope braided cable and cord clip, hoist cable angle, realize that main push-towing rope becomes the bridge line style.

Description of drawings:

Fig. 1 is empty cable state main push-towing rope elevational schematic view

Fig. 2 is empty cable state main push-towing rope floor map

Fig. 3 is empty cable state main push-towing rope schematic cross-sectional view

Fig. 4 is the A place enlarged drawing of Fig. 3

Fig. 5 is that interim hoist cable facade is arranged schematic diagram

Fig. 6 is for becoming bridge state elevational schematic view

Fig. 7 is for becoming bridge state plane schematic diagram

Fig. 8 is for becoming bridge state main push-towing rope schematic cross-sectional view

Fig. 9 is the B place enlarged drawing of Fig. 7

Figure 10 is a cat road general arrangement elevational schematic view

Figure 11 is a cat road general arrangement floor map

Figure 12 is cord clip, hoist cable connection diagram

Figure 13 is the B-B sectional view of Figure 12

The specific embodiment:

Below in conjunction with accompanying drawing and example the present invention is further described.

1, vertical guide sets up the cat road

As shown in Figure 10 and Figure 11, cat road 1 is made up of cat road track cable, crossbeam, manrope, veil, horizontal wind resistance steadying line 7, anchoring Adjustment System etc.Cat road track cable 1 can be striden isolating construction with three.Two end bays are respectively established a width of cloth and are merged the cat road.In stride main push-towing rope because need be through the space transfer process, so in stride the cat road and adopt two width of cloth independence cat roads.

2, vertical guide braided cable

Main push-towing rope 2 is arranged on 1 top, cat road, and main push-towing rope unit strand adopts vertical guide erection technique comparative maturity, is divided into general strand and sets up with the benchmark strand and set up two classes.Main construction sequence is: the strand traction; Carry on the strand, traversing shaping goes into saddle; The strand sag is adjusted; The anchor span tension adjustment.Setting up the benchmark strand earlier, after observing, adjusting, is that benchmark sets up general strand with the benchmark strand again.

3, the tight cable of vertical guide

Tight cable work must be carried out in two steps, i.e. pretension cable and formal tight cable.The method that binding strap on the strand adopts tight cable limit, limit to remove, unsuitable complete removal.Formal tight cable adopts special-purpose tight cable machine that main push-towing rope is made into circle.The direction of formal tight cable should be carried out to the king-post direction from span centre, and end bay is carried out to the king-post direction by anchorage.Fig. 1~Fig. 4 is the schematic diagram of empty cable state main push-towing rope.

4, interim cord clip, interim hoist cable are installed, permanent cord clip vertical guide initial alignment

In vertical guide, install many to interim cord clip and interim hoist cable 3.Interim cord clip, hoist cable and permanent cord clip, hoist cable be not all at same position, and length is also different.Consider it is interim member, the strength of materials can be considered suitable reduction.Interim cord clip is installed on the main push-towing rope 2, and interim hoist cable 3 one ends link to each other with main push-towing rope 2 by interim cord clip, and the other end links to each other with big bridge girder 4.Because the permanent hoist cable of this bridge is the Spatial Cable face, this just requires permanent cord clip accurately to locate.Carry out permanent cord clip initial alignment earlier, the three dimensional space coordinate accurate positioning, the cord clip bolt is just twisted, and tonnage is less, does not make the cord clip slippage.Permanent cord clip is only pursued to cat head by span centre and anchorage place and installs.

5, in to stride symmetrical stretch-draw many to interim drag-line, will in stride that main push-towing rope is traversing to be flared near becoming bridge linear

Adopt multipoint method, as required, in to stride symmetrical stretch-draw many to interim drag-line, will in stride that main push-towing rope is traversing to be flared near becoming bridge linear, the space angle of control cord clip and hoist cable with become the bridge angle more approaching, when guaranteeing the hoist cable installation, can penetrate in the girder anchor tube.This process is the key of cable system construction method of spatial self-anchored rope-suspension bridge.Determine some, promptly several to interim drag-line, need to obtain by analog computation.Purpose is by several stretch-draw to interim hoist cable, make main push-towing rope traversing after, the hoist cable lateral slip angle can satisfy the design required precision.According to span, between the general interim hoist cable about the about 50m of spacing.Fig. 5 is that interim hoist cable is arranged schematic diagram, and Fig. 6~Fig. 9 is into the schematic diagram of bridge state main push-towing rope.

6, permanent cord clip angle accurately locate, permanent hoist cable stretch-draw anchor, saddle pushing tow

About the permanent about 10m of hoist cable spacing, every corresponding permanent cord clip in hoist cable upper end.Main push-towing rope is traversing to be flared near after becoming bridge linear, just can carry out the accurate location adjustment of permanent cord clip.Under this state higher near the cord clip position of king-post because depth-width ratio, with the lateral angles of girder anchor point with becomes the bridge state approaching, and the cord clip position of close span centre is lower, with the lateral angles of girder anchor point with become bridge state difference distance also very big.Therefore, the tension sequence of hoist cable should carry out stretch-draw to the span centre direction from king-post 6, can make the differential seat angle between cord clip otic placode and the hoist cable satisfy required precision.For eliminating the influence of the hoist cable of stretch-draw to other hoist cable own, the accurate adjustment of cord clip angle must be carried out after a last hoist cable stretch-draw is intact simultaneously.

By the gauge point of on main push-towing rope, doing in advance, use universal bevel protractor, measure the angle that this moment, main push-towing rope reversed, according to survey data and corrected Calculation value cord clip otic placode angle is accurately adjusted.According to work progress system converting analogue result calculated, because the Space Nonlinear and the requirement of hoist cable safety factor of main push-towing rope have the part rope to need the spreading anchoring in the stretching process.Along with the stretch-draw of hoist cable, bridge is linear to be drawn close to becoming gradually for main push-towing rope linear, and the cord clip angular deviation is also more and more littler.Excessive for preventing the hoist cable lateral angles, on each permanent cord clip, be provided with stiffening ring device 8, can regulate the space angle of cord clip by drag cable, make hoist cable lateral slip angle in stretching process be controlled at ± 2 the degree in.

7, system conversion, full-bridge Suo Li adjust

In system conversion process, along with the stretch-draw of permanent hoist cable, the Suo Li of interim hoist cable is decreased to zero gradually, at this moment interim hoist cable can be removed.A permanent stage is to hang cable force and linear two control, with Suo Liwei master.Mainly solve by regulate the order and the number of times that hang cable force and the permanent rope of stretch-draw temporarily.Permanent one finish, after girder steel takes off frame, carry out the full-bridge adjustment to hanging cable force as required.The permanent two-stage is to hang cable force and linear two control, based on linear.Be accelerating construction progress this moment, can carry out the construction of the deck paving and the second bridge deck main cable protection system earlier, treats into to carry out funiculus posterior medullae spinalis power behind the bridge as required and always adjust.

8, main push-towing rope twines silk, protection, the ancillary works construction

Carry out main push-towing rope system anticorrosive coating at last, the cat road is removed.Finish space self-anchored suspension bridge funicular system construction, Cheng Qiao.

Employed technical standard and standard comprise among the present invention:

(1) " highway bridge and culvert design general specification " (JTG D60-2004)

(2) " highway bridge and culvert construction technique normalizing " (JTJ041-2000)

(3) " highway suspension bridge design specifications " (declaration original text)

Claims (2)

1, a kind of cable system construction method of spatial self-anchored rope-suspension bridge is characterized in that vertical guide sets up cat road and main push-towing rope, forms empty cable type; Adopt the interim hoist cable stretch-draw of multiple spot, main push-towing rope traversing, make main push-towing rope near becoming bridge linear; Carry out the adjustment of cord clip space angle then,, form main push-towing rope and become the bridge line style, finish the system conversion by the permanent hoist cable of root stretch-draw.
2, cable system construction method of spatial self-anchored rope-suspension bridge as claimed in claim 1 is characterized in that this method comprises the steps: A, sets up cat road and main push-towing rope at vertical guide; B, the tight cable of vertical guide; C, interim cord clip, interim hoist cable are installed, permanent cord clip vertical guide initial alignment; D, in to stride symmetrical stretch-draw many to interim drag-line, will in stride that main push-towing rope is traversing to be flared near becoming bridge linear; E, permanent cord clip angle are accurately located, permanent hoist cable stretch-draw anchor, saddle pushing tow; F, full-bridge Suo Li adjust, and remove interim cord clip and interim hoist cable; G, main push-towing rope twine silk, protection, the ancillary works construction.
CN 200810203206 2008-11-21 2008-11-21 Cable system construction method of spatial self-anchored rope-suspension bridge CN101418542B (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102021887A (en) * 2010-09-16 2011-04-20 长沙理工大学 Suspender tensioning method of double-tower single-span self-anchored suspension bridge with high-cross dip and spatial cable
CN102839605A (en) * 2012-09-25 2012-12-26 长沙理工大学 Sag control method for small-sag datum strand
CN103233427A (en) * 2013-04-27 2013-08-07 长沙理工大学 Sling tensioning and system conversion method for double-tower three-span plane main cable self-anchorage type suspension bridge
CN103266570A (en) * 2013-05-28 2013-08-28 中交二公局第五工程有限公司 Method for accurately installing and positioning suspension bridge main cable anchor system
CN104060545A (en) * 2014-07-10 2014-09-24 中交二航局第四工程有限公司 Overwater suspension cable trestle capable of being used for pumping concrete and construction method and application thereof
CN105603879A (en) * 2015-12-29 2016-05-25 四川石油天然气建设工程有限责任公司 Construction technology for large-diameter pipeline crossing construction catwalk
CN105780658A (en) * 2016-03-11 2016-07-20 中国建筑第六工程局有限公司 Transverse opposite pulling method for space cable plane structure cable system
CN106339490A (en) * 2016-08-31 2017-01-18 铁道第三勘察设计院集团有限公司 System and method for managing railway bridge construction progress based on 3DGIS (Three-dimensional Geographic Information System) and engineering three-dimensional model
CN104404873B (en) * 2014-10-20 2017-04-26 上海市政工程设计研究总院(集团)有限公司 Self-anchored suspension bridge main cable anchoring method
CN107059650A (en) * 2017-06-28 2017-08-18 四川公路桥梁建设集团有限公司 A kind of main rope of suspension bridge thrustor
CN108229035A (en) * 2018-01-09 2018-06-29 安徽省交通控股集团有限公司 A kind of design method for cable-stayed bridge sub-wire clamp-type saddle
CN110468724A (en) * 2019-08-30 2019-11-19 西安市政设计研究院有限公司 A kind of cable of space cable suspension bridge main cable construction auxiliary device and main cable construction method
CN110644370A (en) * 2019-09-30 2020-01-03 中铁大桥局第七工程有限公司 Cable hoisting system of space self-anchored suspension bridge and construction method thereof

Families Citing this family (1)

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CN109137758A (en) * 2018-11-23 2019-01-04 中交第三航务工程局有限公司 A kind of self-anchored suspension bridge cable construction technology

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102021887A (en) * 2010-09-16 2011-04-20 长沙理工大学 Suspender tensioning method of double-tower single-span self-anchored suspension bridge with high-cross dip and spatial cable
CN102839605A (en) * 2012-09-25 2012-12-26 长沙理工大学 Sag control method for small-sag datum strand
CN103233427B (en) * 2013-04-27 2015-04-22 长沙理工大学 Sling tensioning and system conversion method for double-tower three-span plane main cable self-anchorage type suspension bridge
CN103233427A (en) * 2013-04-27 2013-08-07 长沙理工大学 Sling tensioning and system conversion method for double-tower three-span plane main cable self-anchorage type suspension bridge
CN103266570B (en) * 2013-05-28 2015-07-15 中交二公局第五工程有限公司 Method for accurately installing and positioning suspension bridge main cable anchor system
CN103266570A (en) * 2013-05-28 2013-08-28 中交二公局第五工程有限公司 Method for accurately installing and positioning suspension bridge main cable anchor system
CN104060545A (en) * 2014-07-10 2014-09-24 中交二航局第四工程有限公司 Overwater suspension cable trestle capable of being used for pumping concrete and construction method and application thereof
CN104404873B (en) * 2014-10-20 2017-04-26 上海市政工程设计研究总院(集团)有限公司 Self-anchored suspension bridge main cable anchoring method
CN105603879A (en) * 2015-12-29 2016-05-25 四川石油天然气建设工程有限责任公司 Construction technology for large-diameter pipeline crossing construction catwalk
CN105780658A (en) * 2016-03-11 2016-07-20 中国建筑第六工程局有限公司 Transverse opposite pulling method for space cable plane structure cable system
CN106339490A (en) * 2016-08-31 2017-01-18 铁道第三勘察设计院集团有限公司 System and method for managing railway bridge construction progress based on 3DGIS (Three-dimensional Geographic Information System) and engineering three-dimensional model
CN107059650A (en) * 2017-06-28 2017-08-18 四川公路桥梁建设集团有限公司 A kind of main rope of suspension bridge thrustor
CN107059650B (en) * 2017-06-28 2019-06-28 四川公路桥梁建设集团有限公司 A kind of main rope of suspension bridge thrustor
CN108229035A (en) * 2018-01-09 2018-06-29 安徽省交通控股集团有限公司 A kind of design method for cable-stayed bridge sub-wire clamp-type saddle
CN110468724A (en) * 2019-08-30 2019-11-19 西安市政设计研究院有限公司 A kind of cable of space cable suspension bridge main cable construction auxiliary device and main cable construction method
CN110644370A (en) * 2019-09-30 2020-01-03 中铁大桥局第七工程有限公司 Cable hoisting system of space self-anchored suspension bridge and construction method thereof

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