CN105780658A - Transverse opposite pulling method for space cable plane structure cable system - Google Patents

Transverse opposite pulling method for space cable plane structure cable system Download PDF

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Publication number
CN105780658A
CN105780658A CN201610139304.5A CN201610139304A CN105780658A CN 105780658 A CN105780658 A CN 105780658A CN 201610139304 A CN201610139304 A CN 201610139304A CN 105780658 A CN105780658 A CN 105780658A
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CN
China
Prior art keywords
main push
towing rope
main
rope
towing
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CN201610139304.5A
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Chinese (zh)
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CN105780658B (en
Inventor
马亮
屈喜庆
郭坤
陈平
王刚
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China Construction Sixth Engineering Division Co Ltd
China State Construction Bridge Corp Ltd
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China Construction Sixth Engineering Division Co Ltd
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Publication of CN105780658A publication Critical patent/CN105780658A/en
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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
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/16Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables

Abstract

The invention discloses a transverse opposite pulling method for a space cable plane structure cable system. The method comprises the following steps that (1) after tightening of main cables of a space cable plane structure suspension bridge is completed, main cable clamps are mounted on the two main cables correspondingly; (2) the number and positions of transverse oppositely-pulled cables required for main cable space system transformation are simulated according to computer structural calculation software; (3) a catwalk is reversely suspended on the two main cables so as to move transversely along with the two main cables; (4) according to the positions, set in the step (2), of transverse opposite pulling devices, the transverse opposite pulling devices are mounted on the catwalk; (5) jacks are used for tensioning steel strand harnesses, tensioning force of the jacks is transmitted into transverse opposite pulling acting force of the main cables, the steel strand harnesses are fixed through anchoring devices after the two main cables arrive at the designed positions, and transverse opposite pulling construction of the main cables is completed after the space line shape conforming to the main cables is measured; and (6) a steel wire rope is wound around the two main cables to fix the two main cables in the midspan position of a main span. By means of the method, the line shape of the main cables is approximate to a state line shape of a finished bridge.

Description

A kind of Spatial Cable face structural cables system is laterally to pulling method
Technical field
The present invention relates to laterally pulling method, particularly relate to a kind of Spatial Cable face structural cables system laterally to pulling method.
Background technology
Along with the development of suspension bridge construction technology, select in than process in the Longspan Bridge form such as valley, river of crossing over and more favor in earth anchored suspension bridge.Common rope-suspension bridge cable system adopts vertical curve linear, the inadaptable higher esthetic requirement that the outward appearance of Urban Bridge and scenic spot bridge is proposed.Spatial Cable face structural cables system configurations not only new in structure, and Spatial Cable face structural system also improves bridge self wind resisting stability energy, is selected by the famous Bridge Design in many places.Because main cable erection is in freely sagging horizontal alignment after completing in crossing over the Longspan Bridge Spatial Cable face such as valley, river structure construction procedure, make it to the linear a great problem transforming into work progress of bridge completion state at vacant state.According to past construction experiences select after the tight cable of main push-towing rope completes hoist engine, jack at span centre by freely sagging main push-towing rope laterally to drawing, but work progress is constantly in the process of groping, it does not have the construction method of a set of mature and reliable.
Summary of the invention
It is an object of the invention to overcome the shortcoming of prior art, a kind of simple in construction is provided, achieve multiple spot to apply laterally drawing active force, make main push-towing rope generation lateral shift, reaching the effect expected with multi-section-line replacement circular arc, main cable alignment is horizontal to pulling method close to the Spatial Cable face structural cables system that bridge completion state is linear.
A kind of Spatial Cable face structural cables system of the present invention is laterally to pulling method, and it comprises the following steps:
(1), after structure main rope of suspension bridge tight cable in Spatial Cable face completes, two main push-towing ropes are respectively mounted main push-towing rope cord clip;
(2) conversion of main push-towing rope three-dimensional system is simulated according to computer configuation software for calculation required laterally to draw bead number and position;
(3) hanging on two main push-towing ropes by counter for cat road, Shi Mao follows in road two main push-towing rope transverse shiftings;
(4) according to the horizontal position to drawing device set in step (2), cat road is installed laterally to drawing device, concretely comprise the following steps: respectively through laterally pulling seat being carried out pin joint with the main push-towing rope cord clip on twice main push-towing rope by multipair main push-towing rope by the pin joint hole on pulling seat by the main push-towing rope of drawing device respectively;Two main push-towing ropes that pulling seat is included being separately mounted on twice main push-towing rope along direction across bridge by every a pair main push-towing rope are to pulling seat, pulling seat is included pedestal by each main push-towing rope respectively, intermediate symmetry in the upper and lower of described pedestal have along horizontally disposed rope hole, every a pair main push-towing rope rope hole to pulling seat is equipped with steel wire bundle, at every a branch of steel wire bundle two ends, the outer wall place of pulling seat is connected to ground tackle by main push-towing rope, protrude respectively laterally in the middle of the outer wall of described pedestal and be provided with horizontal plate and lower horizontal board, on described upper horizontal plate and lower horizontal board, coaxial line has the pin joint hole vertically arranged;
(5) using jack tension steel wire bundle, make jack tension power transmit into main push-towing rope laterally to drawing active force, twice main push-towing rope fixes steel wire bundle with ground tackle after reaching design attitude place, and it is linear that measurement meets main push-towing rope space, completes main push-towing rope laterally to drawing construction;
(6) two main push-towing ropes are fastened in main span span centre position with steel wire rope.
Compared with prior art, the invention has the beneficial effects as follows:
Tool structure is simple, pin need to be used to be connected with cord clip otic placode, then install stretch-draw material and equipment for easy for installation.Achieve multiple spot by this method to apply laterally drawing active force, make main push-towing rope generation lateral shift, reach the effect expected with multi-section-line replacement circular arc.Main cable alignment is linear close to bridge completion state, improves follow-up cord clip lateral deflection angle adjustment and hoist cable, stiff girder lifting construction progress, it is ensured that construction quality, reduce construction cost, decrease construction management difficulty, provides guarantee for standardized construction.
Accompanying drawing explanation
Fig. 1 is the horizontal schematic diagram to pulling method of Spatial Cable face structural cables system of the present invention;
Fig. 2 is that the main push-towing rope that the inventive method adopts is horizontal to drawing device schematic diagram;
Fig. 3 is that the main push-towing rope in the device shown in Fig. 2 is to pulling seat schematic diagram.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, technical solution of the present invention being described in further detail, the present invention is only explained by described specific embodiment, not in order to limit the present invention.
One Spatial Cable face of the present invention structural cables system is laterally to pulling method, and it comprises the following steps:
(1), after structure main rope of suspension bridge tight cable in Spatial Cable face completes, two main push-towing ropes are respectively mounted main push-towing rope cord clip;
(2) according to computer configuation software for calculation, as: it is required laterally to draw bead number and position that BNLAS software simulates the conversion of main push-towing rope three-dimensional system.
(3) hanging on two main push-towing ropes by counter for cat road, Shi Mao follows in road two main push-towing rope transverse shiftings;
(4) according to the horizontal position to drawing device set in step (2), cat road is installed laterally to drawing device, concretely comprise the following steps: respectively through laterally pulling seat 2 being carried out pin joint with the main push-towing rope cord clip on twice main push-towing rope 1 by multipair main push-towing rope by the pin joint hole 2-2 on pulling seat 2 by the main push-towing rope of drawing device respectively;Two main push-towing ropes that pulling seat 2 is included being separately mounted on twice main push-towing rope along direction across bridge by every a pair main push-towing rope are to pulling seat 2, pulling seat 2 is included pedestal by each main push-towing rope respectively, intermediate symmetry in the upper and lower of described pedestal have along horizontally disposed rope hole 2-1, every a pair main push-towing rope rope hole 2-1 to pulling seat 2 is equipped with steel wire bundle 3, at every a branch of steel wire bundle 3 two ends, the outer wall place of pulling seat 2 is connected to ground tackle 4 by main push-towing rope, protrude respectively laterally in the middle of the outer wall of described pedestal and be provided with horizontal plate and lower horizontal board, on described upper horizontal plate and lower horizontal board, coaxial line has the pin joint hole 2-2 vertically arranged;
(5) using jack tension steel wire bundle 3, make jack tension power transmit into main push-towing rope laterally to drawing active force, twice main push-towing rope fixes steel wire bundle 3 with ground tackle 4 after reaching design attitude place, and it is linear that measurement meets main push-towing rope space, completes main push-towing rope laterally to drawing construction;
(6) two main push-towing ropes are fastened in main span span centre position with steel wire rope, it is prevented that safeguard protection effect is played in the unexpected great change of main push-towing rope spacing.
Embodiment 1
(1), after structure main rope of suspension bridge tight cable in Spatial Cable face completes, two main push-towing ropes are respectively mounted main push-towing rope cord clip;
(2) simulate main push-towing rope three-dimensional system according to BNLAS computer configuation software for calculation to change required to be laterally 3 roads to draw bead number, respectively arrange that one laterally to drawing device respectively at suspension bridge main span 1/4,1/2,3/4 place.
(3) hanging on two main push-towing ropes by counter for cat road, Shi Mao follows in road two main push-towing rope transverse shiftings;
(4) according to the horizontal position to drawing device set in step (2), cat road is installed laterally to drawing device, concretely comprise the following steps: respectively through laterally pulling seat 2 being carried out pin joint with the main push-towing rope cord clip on twice main push-towing rope 1 by multipair main push-towing rope by the pin joint hole 2-2 on pulling seat 2 by the main push-towing rope of drawing device respectively;Two main push-towing ropes that pulling seat 2 is included being separately mounted on twice main push-towing rope along direction across bridge by every a pair main push-towing rope are to pulling seat 2, pulling seat 2 is included pedestal by each main push-towing rope respectively, intermediate symmetry in the upper and lower of described pedestal have along horizontally disposed rope hole 2-1, every a pair main push-towing rope rope hole 2-1 to pulling seat 2 is equipped with steel wire bundle 3, at every a branch of steel wire bundle 3 two ends, the outer wall place of pulling seat 2 is connected to ground tackle 4 by main push-towing rope, protrude respectively laterally in the middle of the outer wall of described pedestal and be provided with horizontal plate and lower horizontal board, on described upper horizontal plate and lower horizontal board, coaxial line has the pin joint hole 2-2 vertically arranged;
(5) using jack tension steel wire bundle 3, make jack tension power transmit into main push-towing rope laterally to drawing active force, twice main push-towing rope fixes steel wire bundle 3 with ground tackle 4 after reaching design attitude place, and it is linear that measurement meets main push-towing rope space, completes main push-towing rope laterally to drawing construction;
(6) two main push-towing ropes are fastened in main span span centre position with steel wire rope, it is prevented that safeguard protection effect is played in the unexpected great change of main push-towing rope spacing.
Through field test, adopt this method main push-towing rope to linear linear substantially close to becoming bridge after pulling into, ensure that packing quality (the disposable qualification rate of cord clip angle is 98.6%, 142) accurately installed by follow-up cord clip, and substantially increase stiff girder lifting construction progress.
Although above in conjunction with accompanying drawing, invention has been described; but the invention is not limited in above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is merely schematic; rather than it is restrictive; those of ordinary skill in the art is under the enlightenment of the present invention; without deviating from the spirit of the invention, it is also possible to make many variations, these belong within the protection of the present invention.

Claims (1)

1. a Spatial Cable face structural cables system is laterally to pulling method, it is characterised in that it comprises the following steps:
(1), after structure main rope of suspension bridge tight cable in Spatial Cable face completes, two main push-towing ropes are respectively mounted main push-towing rope cord clip;
(2) conversion of main push-towing rope three-dimensional system is simulated according to computer configuation software for calculation required laterally to draw bead number and position;
(3) hanging on two main push-towing ropes by counter for cat road, Shi Mao follows in road two main push-towing rope transverse shiftings;
(4) according to the horizontal position to drawing device set in step (2), cat road is installed laterally to drawing device, concretely comprise the following steps: respectively through laterally pulling seat being carried out pin joint with the main push-towing rope cord clip on twice main push-towing rope by multipair main push-towing rope by the pin joint hole on pulling seat by the main push-towing rope of drawing device respectively;Two main push-towing ropes that pulling seat is included being separately mounted on twice main push-towing rope along direction across bridge by every a pair main push-towing rope are to pulling seat, pulling seat is included pedestal by each main push-towing rope respectively, intermediate symmetry in the upper and lower of described pedestal have along horizontally disposed rope hole, every a pair main push-towing rope rope hole to pulling seat is equipped with steel wire bundle, at every a branch of steel wire bundle two ends, the outer wall place of pulling seat is connected to ground tackle by main push-towing rope, protrude respectively laterally in the middle of the outer wall of described pedestal and be provided with horizontal plate and lower horizontal board, on described upper horizontal plate and lower horizontal board, coaxial line has the pin joint hole vertically arranged;
(5) using jack tension steel wire bundle, make jack tension power transmit into main push-towing rope laterally to drawing active force, twice main push-towing rope fixes steel wire bundle with ground tackle after reaching design attitude place, and it is linear that measurement meets main push-towing rope space, completes main push-towing rope laterally to drawing construction;
(6) two main push-towing ropes are fastened in main span span centre position with steel wire rope.
CN201610139304.5A 2016-03-11 2016-03-11 A kind of Spatial Cable face structural cables system is laterally to pulling method Active CN105780658B (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111691296A (en) * 2020-04-30 2020-09-22 武汉船用机械有限责任公司 Double main cable clamp
CN112195784A (en) * 2020-09-15 2021-01-08 中交第二公路工程局有限公司 Catwalk sag adjustment system and adjustment method for erecting main cable by adopting air spinning method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101418542A (en) * 2008-11-21 2009-04-29 上海市政工程设计研究总院 Cable system construction method of spatial self-anchored rope-suspension bridge
KR20090058069A (en) * 2007-12-04 2009-06-09 한양대학교 산학협력단 Bridge supported by a plurality of cable
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
KR101278924B1 (en) * 2011-09-23 2013-07-01 정관선 Sliding hinge Apparatus for setting segments of suspension bridge of impact type
CN104060540A (en) * 2014-06-03 2014-09-24 长安大学 Temporary cross bracing of space cable suspension bridge and lifting-constructing method of temporary cross bracing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090058069A (en) * 2007-12-04 2009-06-09 한양대학교 산학협력단 Bridge supported by a plurality of cable
CN101418542A (en) * 2008-11-21 2009-04-29 上海市政工程设计研究总院 Cable system construction method of spatial self-anchored rope-suspension bridge
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
KR101278924B1 (en) * 2011-09-23 2013-07-01 정관선 Sliding hinge Apparatus for setting segments of suspension bridge of impact type
CN104060540A (en) * 2014-06-03 2014-09-24 长安大学 Temporary cross bracing of space cable suspension bridge and lifting-constructing method of temporary cross bracing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111691296A (en) * 2020-04-30 2020-09-22 武汉船用机械有限责任公司 Double main cable clamp
CN112195784A (en) * 2020-09-15 2021-01-08 中交第二公路工程局有限公司 Catwalk sag adjustment system and adjustment method for erecting main cable by adopting air spinning method

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Effective date of registration: 20190730

Address after: 402260 Third Floor, No. 599 Qingqi Road, Binjiang New Town, Jiangjin District, Chongqing

Co-patentee after: China Construction Sixth Engineering Bureau Co., Ltd.

Patentee after: Zhongjian Bridge Co., Ltd.

Address before: 300451 Tanggu District, Tianjin, 72 Tanggu Hangzhou Road, Tianjin

Patentee before: China Construction Sixth Engineering Bureau Co., Ltd.

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