CN106758767B - A kind of suspension bridge segmented cat road and its construction method - Google Patents

A kind of suspension bridge segmented cat road and its construction method Download PDF

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Publication number
CN106758767B
CN106758767B CN201611055259.1A CN201611055259A CN106758767B CN 106758767 B CN106758767 B CN 106758767B CN 201611055259 A CN201611055259 A CN 201611055259A CN 106758767 B CN106758767 B CN 106758767B
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China
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king
track cable
suspension bridge
tower
cable
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CN201611055259.1A
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CN106758767A (en
Inventor
吕磊
代皓
周刚
张瑞霞
许佳平
张小川
杜凤
幸思佳
谢守杰
段妙奇
毛伟琦
涂满明
吴方明
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China Railway Major Bridge Engineering Group Co Ltd MBEC
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China Railway Major Bridge Engineering Group Co Ltd MBEC
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    • 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
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D11/00Suspension or cable-stayed bridges
    • E01D11/02Suspension bridges
    • 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 suspension bridge segmented cat road and its construction methods, it is related to suspension bridge construction field, it is used to connect two king-towers for being located at suspension bridge main span both sides and the anchorage positioned at suspension bridge both sides, king-tower both sides are respectively fixed with one first anchor, by being embedded in being connected to drawing device in king-tower between two the first anchors of same king-tower, a main span track cable is connected between two opposite the first anchors between two king-towers;Anchorage is equipped with the second anchor, and end bay track cable is connected between the second anchor and the first anchor of its opposite king-tower.

Description

A kind of suspension bridge segmented cat road and its construction method
The present invention relates to suspension bridge construction fields, and in particular to a kind of suspension bridge segmented cat road and its construction method.
Background technology
Suspension bridge construction cat road is to be erected under main push-towing rope, be parallel to main cable alignment arrangement, construction personnel is allowed to construct The height scaffolding of operation is the operation platform of main push-towing rope system or even the entire superstructure of suspension bridge, is responsible for strand traction, adjusts Rope, shaping enter saddle, tight cable, cord clip and hoist cable installation, main cable and girder and building site connection, main push-towing rope and twine important of silk, protective coating etc. Business.The roads Mao Daozhongmao track cable used by suspension bridge construction is continuous between two sides anchorage and king-tower at present, by Tower top is arranged steering cable saddle and crosses over king-tower structure, since track cable need to cross over overhead region, while to ensure cat road load-bearing Rope will meet design requirement king-tower both sides are linear, track cable pull device need to be arranged in king-tower both sides so that cat road structure exists King-tower regional structure is complicated, and working space is narrow, and main cable strand erection construction is inconvenient;Additionally, due to single track cable only two Linear tune rope device is set at bank anchorage position, while pull device is equipped in king-tower both sides so that track cable in installation and LFM signal is difficult during use, and the hanging of later stage cat road and dismounting are also inconvenient.
Invention content
In view of the deficiencies in the prior art, the purpose of the present invention is to provide a kind of suspension bridge segmented cat road and its Construction method makes suspension bridge cat road track cable that can quickly and easily adjust linear and later stage during installation and use and tears open It removes, while simplifying cat road in the arrangement of top region, facilitate associated construction operation.
To achieve the above objectives, the technical solution adopted by the present invention is that:
The present invention also provides a kind of construction method in above-mentioned suspension bridge segmented cat road, which is used for Connect two king-towers for being located at suspension bridge main span both sides and the anchorage positioned at suspension bridge both sides, each fixation in king-tower both sides There is one first anchor, by being embedded in connecting to drawing device in king-tower between two the first anchors of same king-tower It connects, a main span track cable is connected between two opposite the first anchors between two king-towers;The anchorage is equipped with the second anchor It is fixedly mounted with and sets, end bay track cable is connected between second anchor and the first anchor of its opposite king-tower; It is equipped on the end bay track cable by main span track cable and second anchor by first anchor for adjusting The tune rope device of whole track cable line style includes the following steps in method:
S1, main cable saddle is installed on the king-tower of suspension bridge both sides, is installed on the anchorage of both sides and dissipates cable saddle;It is subsequently mounted tower top door Frame dissipates cable saddle door frame, the first anchor, the second anchor and adjusts rope device;
S2, erecting guide rope, form it into unidirectional reciprocating-type tractor system, and two end bays are first installed using the trailer system Then track cable installs main span track cable, finally install door frame rope and hauling rope;
S3, installation cat road track cable displacement steel frame construction, cat road surface layer structure and lateral overline bridge structure.
Based on the above technical solution, when installing first anchor, drawing device is carried out by setting Prestretching.
Based on the above technical solution, the LFM signal of the main span track cable and the end bay track cable respectively into Row.
Based on the above technical solution, further include in the step S2, by adjusting rope device by the linear tune of guide cable It is designed under whole to empty strand state linear.
Based on the above technical solution, further include in the step S3, by adjusting rope device respectively by main span load-bearing Rope and end bay track cable LFM signal are to design position.
Compared with the prior art, the advantages of the present invention are as follows:
(1) roads segmented Mao Daozhongmao track cable of the invention disconnects at king-tower, and end bay can be separated in across track cable It is installed and is debugged so that track cable is influenced small by temperature and cutting length, and site operation tissue is simple, construction efficiency is high, With very strong applicability and economy.
(2) roads segmented Mao Daozhongmao track cable of the invention disconnects at king-tower, greatly simplify the erection of cat road rope and LFM signal process shortens and sets up the time, saves project cost, while keeping tower top arrangement more simple, facilitates main rope of suspension bridge Strand Erection is constructed, while later stage cat road structural demolition is more convenient, while process center line is being installed and used to cat road track cable Shape adjustment is more convenient.
Description of the drawings
Fig. 1 is the structural schematic diagram in centre suspension cord bridge segmented cat of embodiment of the present invention road;
Fig. 2 is the structural schematic diagram in the end bay anchorage position roads Chu Mao in the embodiment of the present invention;
Fig. 3 is the structural schematic diagram in cat road at the top of king-tower in the embodiment of the present invention;
Fig. 4 is construction procedure S1 schematic diagrames in the embodiment of the present invention;
Fig. 5 is construction procedure S2 schematic diagrames in the embodiment of the present invention;
Fig. 6 is construction procedure S3 schematic diagrames in the embodiment of the present invention;
In figure:1- king-towers, 2- anchorages, 3- main span track cables, 4- end bay track cables, the first anchors of 5-, 501- is to drawing Device, the second anchors of 6-, 7- tune rope devices, 8- guide cables, 9- door frame ropes, 10- hauling ropes, 11- tower top portals, 12- dissipate Cable saddle door frame.
Specific implementation mode
Invention is further described in detail with reference to the accompanying drawings and embodiments.
Shown in Fig. 1 to Fig. 3, the embodiment of the present invention provides a kind of suspension bridge segmented cat road, is used to connect difference Positioned at two king-towers 1 of suspension bridge main span both sides and positioned at the anchorage 2 of suspension bridge both sides,
1 both sides of the king-tower are respectively fixed with one first anchor 5, between two the first anchors 5 of same king-tower By being embedded in being connected to drawing device 501 in king-tower 1, it is connected between two opposite the first anchors 5 between two king-towers 1 One main span track cable 3;
The anchorage 2 is equipped with the second anchor 6, and the of the king-tower 1 opposite with its of second anchor 6 It is connected with end bay track cable 4 between one anchor 5.
Several tune rope devices 7 can be also arranged in suspension bridge segmented cat road of the present invention, adjust rope device 7 that can be set to the first anchoring and fill It sets on the main span track cable 3 on 5 sides and on the end bay track cable 4 on second anchor, 6 side, by being opened to track cable Tight or relaxation, adjusts fixed track cable line style.Rope device 7 is adjusted by setting, can be held main span track cable 3 and end bay In the case that weight rope 4 anchors, track cable line style is adjusted, constructing operation is facilitated.
Drawing device 501 will can be set as being embedded in king-tower 1 between two the first anchors 5 of same king-tower 1 To drawing finish rolling deformed bar, and be fixedly connected, further enhance consolidating for main span track cable 3 and end bay track cable 4 and king-tower 1 Determine structure, ensure its tensile bearing capacity, to strengthen the stability of Suspension bridge structure.
The segmented Mao Daozhongmao road track cables of the present invention disconnect at king-tower 1, and end bay track cable 3 is in across track cable 4 It can separate and be installed and be debugged so that track cable is influenced small by temperature and cutting length, and site operation tissue is simple, construction effect Rate is high, has very strong applicability and economy.
The embodiment of the present invention also provides a kind of construction method in aforementioned suspension bridge segmented cat road, carries out step by step below detailed It states:
It is shown in Figure 4, main cable saddle is installed on suspension bridge both sides king-tower 1 first, is installed on both sides anchorage 2 and dissipates rope Saddle;It is subsequently mounted tower top portal 11, cable saddle door frame 12, the first anchor 5, the second anchor 6 is dissipated and adjusts rope device 7;
Shown in Figure 5, second step erecting guide rope 8 forms it into unidirectional reciprocating-type tractor system, utilizes the traction system System first installs two end bay track cables 4, then installs main span track cable 3, finally installs door frame rope 9 and hauling rope 10;
It in this step, can also be linear by adjusting rope device 7 that will be designed under cat road rope LFM signal to empty strand state.
It is shown in Figure 6, third step installation cat road track cable displacement steel frame construction, cat road surface layer structure and lateral overline bridge knot Structure.
The first anchor 5 can be subjected to prestretching to drawing device 501 by setting in construction, ensure that its tension carries Power keeps Suspension bridge structure more firm.
It can be in construction when adjustment track cable line style, to the LFM signal point of main span track cable 3 and the end bay track cable 4 It does not carry out, it is non-interference.Construction efficiency is also improved while simplifying difficulty of construction.
It can be linear by adjusting rope device 7 that will be designed under 8 LFM signal of guide cable to empty strand state in second step construction.
It can be in third walks construction, using tune rope device 7 respectively by 4 LFM signal of main span track cable 3 and end bay track cable To design position.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as the protection of the present invention Within the scope of.The content not being described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.

Claims (5)

1. a kind of construction method in suspension bridge segmented cat road, which is located at suspension bridge for connecting Two king-towers (1) of main span both sides and the anchorage (2) positioned at suspension bridge both sides, king-tower (1) both sides are respectively fixed with one first Anchor (5), between two the first anchors (5) of same king-tower by be embedded in king-tower (1) to drawing device (501) it connects, a main span track cable (3) is connected between two opposite the first anchors (5) between two king-towers (1);It is described Anchorage (2) is equipped with the second anchor (6), the first anchor of second anchor (6) and its opposite king-tower (1) It is fixedly mounted between setting (5) and is connected with end bay track cable (4);The other main span track cable (3) of first anchor (5) and described the The tune rope device (7) for adjusting track cable line style, feature are equipped on the other end bay track cable (4) of two anchors (6) It is, includes the following steps in method:
S1, main cable saddle is installed on suspension bridge both sides king-tower (1), is installed on both sides anchorage (2) and dissipates cable saddle;It is subsequently mounted tower top Door frame (11) dissipates cable saddle door frame (12), the first anchor (5), the second anchor (6) and adjusts rope device (7);
S2, erecting guide rope (8), form it into unidirectional reciprocating-type tractor system, and two end bays are first installed using the trailer system Track cable (4) then installs main span track cable (3), finally installs door frame rope (9) and hauling rope (10);
S3, installation cat road track cable displacement steel frame construction, cat road surface layer structure and lateral overline bridge structure.
2. the construction method in suspension bridge segmented cat road as described in claim 1, it is characterised in that:First anchoring is being installed When device (5), prestretching is carried out to drawing device (501) by setting.
3. the construction method in suspension bridge segmented cat road as described in claim 1, it is characterised in that:The main span track cable (3) It is carried out respectively with the LFM signal of the end bay track cable (4).
4. the construction method in suspension bridge segmented cat road as described in claim 1, it is characterised in that:It is also wrapped in the step S2 It includes, it is linear by adjusting rope device (7) that will be designed under guide cable (8) LFM signal to empty strand state.
5. the construction method in suspension bridge segmented cat road as described in claim 1, it is characterised in that:It is also wrapped in the step S3 It includes, by adjusting rope device (7) respectively by main span track cable (3) and end bay track cable (4) LFM signal to design position.
CN201611055259.1A 2016-11-25 2016-11-25 A kind of suspension bridge segmented cat road and its construction method Active CN106758767B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109958060A (en) * 2019-04-09 2019-07-02 中国十七冶集团有限公司 The erection and regulating device of asymmetric finished main cable shape of self-anchored suspension Datum Strand

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110939069A (en) * 2019-12-11 2020-03-31 湖北省路桥集团有限公司 Construction method of suspension bridge catwalk
CN111441594B (en) * 2020-04-21 2021-10-26 中铁大桥局第七工程有限公司 Construction method of multilayer sectional type main cable
CN112064508A (en) * 2020-08-21 2020-12-11 中铁大桥局集团第六工程有限公司 Method for adjusting linear shape of continuous catwalk of suspension bridge

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CN102392418A (en) * 2011-12-01 2012-03-28 中交二公局第二工程有限公司 Span-division erection construction method of construction catwalk of multi-tower suspension bridge
KR101171039B1 (en) * 2010-09-02 2012-08-06 오베아룹코리아(주) Partially and fully earth-anchored cable-stayed bridge using main span prestressing appratus and construction method for the same
CN104278635A (en) * 2014-09-03 2015-01-14 中铁大桥局股份有限公司 Steering method of ground anchor type suspension bridge catwalk load bearing cable
CN104631329A (en) * 2014-12-30 2015-05-20 中铁大桥局集团有限公司 Method for adjusting overall line shape of continuous catwalk of suspension bridge
CN205576743U (en) * 2016-03-08 2016-09-14 贵州中交贵瓮高速公路有限公司 A mechanism that is used for suspension bridge catwalk main rope to put cable

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KR101171039B1 (en) * 2010-09-02 2012-08-06 오베아룹코리아(주) Partially and fully earth-anchored cable-stayed bridge using main span prestressing appratus and construction method for the same
CN102392418A (en) * 2011-12-01 2012-03-28 中交二公局第二工程有限公司 Span-division erection construction method of construction catwalk of multi-tower suspension bridge
CN104278635A (en) * 2014-09-03 2015-01-14 中铁大桥局股份有限公司 Steering method of ground anchor type suspension bridge catwalk load bearing cable
CN104631329A (en) * 2014-12-30 2015-05-20 中铁大桥局集团有限公司 Method for adjusting overall line shape of continuous catwalk of suspension bridge
CN205576743U (en) * 2016-03-08 2016-09-14 贵州中交贵瓮高速公路有限公司 A mechanism that is used for suspension bridge catwalk main rope to put cable

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109958060A (en) * 2019-04-09 2019-07-02 中国十七冶集团有限公司 The erection and regulating device of asymmetric finished main cable shape of self-anchored suspension Datum Strand

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