CN102392418A - Span-division erection construction method of construction catwalk of multi-tower suspension bridge - Google Patents

Span-division erection construction method of construction catwalk of multi-tower suspension bridge Download PDF

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Publication number
CN102392418A
CN102392418A CN2011103915456A CN201110391545A CN102392418A CN 102392418 A CN102392418 A CN 102392418A CN 2011103915456 A CN2011103915456 A CN 2011103915456A CN 201110391545 A CN201110391545 A CN 201110391545A CN 102392418 A CN102392418 A CN 102392418A
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China
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catwalk
cable
traction
pulling
rope
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CN2011103915456A
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Chinese (zh)
Inventor
先正权
冯兆祥
刘苗
吉林
周畅
孙存良
杜洪池
杨宁
林海峰
沈良成
金仓
陈兵华
陈策
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中交二公局第二工程有限公司
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Priority to CN2011103915456A priority Critical patent/CN102392418A/en
Publication of CN102392418A publication Critical patent/CN102392418A/en

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Abstract

The invention relates to the field of construction of multi-tower suspension bridges, and particularly relates to a span-division erection construction method of a construction catwalk of a multi-tower suspension bridge. The construction method is characterized in that: a multi-span construction catwalk is divided into different spans, every two spans of the construction catwalk are taken as a construction segment, each construction segment is provided with a corresponding single-line reciprocating traction system, a catwalk bearing rope is independently erected for each single-line reciprocating traction system and finally, the catwalk bearing ropes which are erected segment by segment are fixed at the segment positions. In the invention, the span-division erection construction method of the construction catwalk of the multi-tower suspension bridge is provided, thus the erection efficiency of the catwalk bearing ropes of the construction catwalk of the multi-tower suspension bridge is improved.

Description

多塔悬索桥施工猫道分跨架设施工方法 Construction of multi-tower suspension bridge catwalk astride Construction Method

技术领域 FIELD

[0001] 本发明涉及多塔悬索桥施工领域,特别是一种多塔悬索桥施工猫道分跨架设施工方法。 [0001] The present invention relates to the field of multi-tower suspension bridge construction, particularly a multi-column SUSPENSION BRIDGE straddle Construction Method.

背景技术 Background technique

[0002] 在我国公路交通等基础建设中,作为跨越能力最强的悬索桥,总是跨江、跨海通道的首选桥型。 [0002] On the basis of the construction of highway transportation, as the strongest capability across the suspension bridge, across the river always preferred cross-sea bridge-type channels. 近年来,为解决水面宽阔的大江、海峡的交通工程建设要求,考虑到传统的两塔悬索桥的跨越能力、主跨超越一定限度的经济性下降等因素,逐渐出现了三塔(多塔)悬索桥的新型桥型设计方案,其中泰州长江公路大桥、马鞍山长江公路大桥均采用了三塔两跨悬索桥结构,该桥型比传统两塔悬索桥相比,既解决了桥位水域对桥型的跨越能力要求, 又大大降低了悬索桥基础(主塔、锚碇)的规模,减少了总体工程造价,是跨越能力和经济性的统一的一种新型桥型。 In recent years, to address the broad surface of the river, cross the traffic engineering construction requirements, taking into account the capabilities across the traditional two-tower suspension bridge's main span beyond certain limits of economic decline and other factors, the gradual emergence of three towers (multi-tower) suspension bridge the new bridge-type design, which Taizhou Yangtze River Highway bridge, Maanshan Yangtze River Highway bridge are powered by two three-tower suspension bridge span structure, bridge-type than the usual two tower suspension bridge, which addresses the ability of the bridge site across the waters of the bridge type requirements, but also greatly reduces the size of the suspension bridge foundation (the main tower, anchorage), reducing the overall project cost, capacity and economy spanning the unity of a new bridge type.

[0003] 猫道是悬索桥上部结构施工最重要的高空作业通道和场地,其线形近似平行于主缆空缆线形。 [0003] Cat track superstructure construction is the most important Suspension aerial and space channel, which is approximately parallel to the main linear cable empty shape. 在整个上部施工期间,猫道的功能是主缆架设、加劲梁吊装、主缆防护等施工的作业平台。 During the entire upper construction, function Catwalk is the main cable, construction of platforms girders hoisting, the main cable protection. 猫道通常由悬吊在索塔与索塔、索塔与锚碇之间的数根平行承重钢绳、横梁组成,其上铺设钢丝网面层、防滑木条、扶手栏杆、扶手钢丝绳等。 Of catwalk generally bearing the number of the parallel between the tower and the tower is suspended, the tower and the anchor rope, beams, whose laying steel mesh facing, slip wood, the balustrade, the handrail rope like. 作为架设悬索桥主缆等工作时施工人员的过往通行的通道和平台。 As in the past when the main cable erection work construction workers accepted channels and platforms.

[0004] 施工猫道的跨度、跨数与悬索桥结构适应和一致,在以往的两塔悬索桥施工中均采用一套牵引系统进行一幅三跨猫道的架设。 Span [0004] Construction of the catwalk, the number of cross-suspension structure adapted and consistent with conventional suspension bridges two columns are used to set up a traction system of a three-span catwalk. 针对多塔多跨悬索桥猫道(猫道为四跨及以上),采用传统的架设方法,施工效率比较低,不能适应多塔悬索桥施工猫道的猫道承重索的架设施工要求。 For multi-tower multi-span suspension bridge Catwalk (Catwalk four across and above), using the traditional method of erection, construction efficiency is relatively low, can not meet the Catwalk of Suspension Bridge catwalk multi-tower erection load-bearing cable construction requirements.

发明内容 SUMMARY

[0005] 本发明的目的是提供一种多塔悬索桥施工猫道分跨架设施工方法,以提高多塔悬索桥施工猫道的猫道承重索架设效率。 [0005] The object of the present invention is to provide a multi-column SUSPENSION BRIDGE straddle Construction Method to improve the efficiency of the catwalk erection Ropes SUSPENSION BRIDGE multi-tower.

[0006] 本发明解决其技术问题所采用的技术方案是:一种多塔悬索桥施工猫道分跨架设施工方法,其特征在于:将多跨施工猫道分跨,每两跨分为一个施工段,每个施工段布设对应的单线往复牵引系统,各单线往复牵引系统独立架设猫道承重索,最后对分段架设完成后的猫道承重索在分段处固定。 [0006] aspect of the present invention to solve the technical problem is that: a multi-column SUSPENSION BRIDGE straddle Construction Method, comprising: a plurality of construction catwalk straddle across, each divided into a two-span construction segments, each corresponding to one-line construction section reciprocally laid traction system, the traction system is independent of individual wires shuttle main cable erection catwalk, catwalk last segment erection after completion of the main cable is fixed in the segment.

[0007] 所述的分段架设完成后的猫道承重索在分段处采用浇铸式锚头通过钢销固定连接。 [0007] The segment erection catwalk after the completion of use of the casting main cable segment anchor head at the fixedly connected by steel pins.

[0008] 所述的多跨施工猫道分为四跨猫道,以第二索塔3为界设置两套单线往复牵引系统。 [0008] The multi-span construction is divided into four cross the catwalk catwalk to a second tower 3 is provided as a boundary-line reciprocating two traction system.

[0009] 所述的单线往复牵引系统是由第一牵引系统卷扬机、第一牵引索导向轮、第一塔顶牵引索导轮组、第一牵引索、第一拽拉器、第二牵引索、第二牵引索导向轮、第二牵引系统卷扬机组成;第一锚碇处固定有第一牵引系统卷扬机及第一牵引索导向轮,第一索塔的塔顶处固定有第一塔顶牵引索导轮组,第二索塔的塔顶处固定有第二牵引索导向轮,第二索塔的塔底固定有第二牵引系统卷扬机;第一牵引系统卷扬机的第一牵引索经第一牵引索导向轮及第一塔顶牵引索导轮组连接至第一拽拉器上,第二牵引系统卷扬机的第二牵引索经第二牵引索导向轮同样连接至第一拽拉器上。 [0009] The single-line reciprocating traction system is composed of a first traction winch system, a first pulling cable guide wheels, a first guide wheel set of overhead traction cable, a first traction cable, pulling the first, the second pull rope a second pulling cable guide wheel, a second traction winch system consisting of; a first fixed anchorage of the first traction winch system and a first pulling cable guide wheels, the first tower at the top of the column a first overhead traction fixed cable guide wheel set, the overhead of the second tower of the second fixed guide wheel traction rope, the second tower bottom is fixed to the second traction winch system; a first traction winch to the first system via the first pulling rope a first guide wheel and traction cables overhead traction cable guide wheel set is connected to the first pull, a second traction winch second system via the second pulling rope pulling cable guide wheels also connected to a first pull unit.

[0010] 所述的单线往复牵引系统架设第一猫道承重索时具体包括以下步骤: [0010] The single-line set up shuttle traction system comprises the steps of first catwalk Ropes:

步骤一,第一猫道承重索前绳头由位于在第一锚碇处的第一猫道承重索放索架及索盘内放出,通过人工及其他辅助设备将其牵引到第一索塔的塔顶,并与第一拽拉器连接; A step of, before the first catwalk bearing rope by a cable located in a first anchor at the first bearing catwalk release the inner wire and cable release cable carrier tray, and other auxiliary equipment by manually pulling it to the first tower to tower, and connected to the first pulling device;

步骤二,启动第一牵引系统卷扬机、第二牵引系统卷扬机,第二牵引系统卷扬机收绳,第一牵引系统卷扬机放绳,在第二牵引索及第一牵引索及第一拽拉器的带动下,第一猫道承重索前绳头由第一索塔的塔顶牵向第二索塔,牵引过程中第一猫道承重索放索架及索盘对第一猫道承重索施加反张力确保通航净空高度; Step two, the first traction system start windlass, winch second traction system, the traction system of the second closing rope winch, the first winch release rope traction system, driven by the first and second traction rope pulling cable pull and a first filter next, before the first main cable thimble catwalk led from the top of the first tower to the second tower, the process of pulling the main cable catwalk first cable holder and the cable placed on the first disc catwalk load exerted thereon trans navigation headroom to ensure that the tension;

步骤三,第一猫道承重索放索架及索盘内后绳头亦即放出时,将第一猫道承重索的后绳头与第一锚碇支墩门架上的卷扬机滑车组连接,继续牵引第一猫道承重索前绳头,牵引至第二索塔顶时,临时锚固第一猫道承重索的前绳头;第一锚碇支墩门架上的卷扬机滑车组牵引第一猫道承重索后绳头,将其置入猫道锚固系统完成第一猫道承重索的架设; Step three, the first catwalk back bearing inner wire cable tray and put the cable carrier rope discharged i.e., the first catwalk after the main cable winch rope pulley connected to the first anchor group buttress mast when continuing the traction cable before the first catwalk bearing rope, pulling the second tower to the top, the first temporary anchor cable load before catwalk rope; a first anchorage buttress mast winch traction sheave blocks of a catwalk Suohou Sheng bearing head, which is placed in the cat channel system completes a first anchor cable load catwalk erection;

所述的单线往复牵引系统架设猫道承重索的方法步骤适用于其他各段猫道承重索架设。 The method of the single-line set up shuttle traction system catwalk main cable section is applicable to all other steps catwalk Ropes erection.

[0011] 本发明的有益效果是:本发明由于是将多跨施工猫道分跨,每两跨分为一个施工段,每个施工段布设对应的单线往复牵引系统,各工作段采用各自的单线往复牵引系统独立架设,最后对分段架设完成后的猫道承重索在分段处固定,因此各工段实现了同步施工,各段、上下游猫道承重索架设相互间不干涉,有效提高施工猫道的架设工效。 [0011] Advantageous effects of the invention are: Since the present invention is a multi-span construction catwalk astride, each divided into two segments span a construction, the construction of each segment corresponding to laid-line reciprocating traction system, the working section using the respective singlet reciprocally independent traction system set up, the last segment on the catwalk after completion of the erection of the main cable is fixed in the segment, so the construction of each stage to achieve the synchronization, each of the sections, the downstream catwalk interfere with each other between the main cable erection, improve Catwalk construction erecting ergonomics.

附图说明 BRIEF DESCRIPTION

[0012] 下面结合实施例附图对本发明做进一步说明: [0012] The following embodiments in conjunction with the accompanying drawings of the embodiments of the present invention will be further described:

图1为本发明施工方法的猫道承重索架设牵引系统分跨布置立面图1 ;图2为本发明施工方法的猫道承重索架设牵引系统分跨布置立面图2 ;图3为实施例的步骤图1;图4为实施例的步骤图2;图5为实施例的步骤图3;图6为实施例的步骤图4 ;图7为实施例的步骤图5;图8为实施例的步骤图6 ;图9为实施例的步骤图7。 FIG 1 catwalk construction method of the present invention, a traction system main cable erection disposed astride elevational 1; FIG construction method of the present invention catwalk erection main cable traction system disposed astride elevational 2; FIG. 3 embodiment the step of FIG Example 1; FIG. 4 is a step diagram of an embodiment 2; FIG. 5 is a step in FIG. 3 embodiment; FIG. 6 is an embodiment of the step of FIG. 4; FIG. 7 is a step diagram of an embodiment 5; FIG. 8 is a embodiment the procedure of Example 6; FIG. 9 is a view of an embodiment of step 7.

[0013] 图中:1、第一锚碇;2、第一索塔;3、第二索塔;4、第三索塔;5、第二锚碇; [0013] FIG: 1, a first anchor; 2, a first tower; 3, a second tower; 4, a third tower; 5, a second anchor;

1-1、第一牵引系统卷扬机;1-2、第一牵引索导向轮;1-3、第一塔顶牵引索导轮组; 1-1, the first traction winch system; 1-2, a first guide wheel traction rope; 1-3, a first overhead traction cable guide wheel set;

1-4、第一牵引索;1-5、第一拽拉器;1-6、第二牵引索;1-7、第二牵引索导向轮;1-8、第二牵引系统卷扬机;1-9、第一猫道承重索放索架及索盘;1-10、第一猫道承重索; 1-4, a first pulling cable; 1-5, a first pulling device; 1-6, a second pulling cable; 1-7, a second pulling cable guide wheels; 1-8, a second traction winch system; 1 -9 first catwalk main cable and cable release cable holder plate; 1-10, a first bearing cable catwalk;

2-1、第三牵引系统卷扬机;2-2、第三牵引索导向轮;2-3、第二塔顶牵引索导轮组; 2-1, third traction winch system; 2-2, third traction cable guide wheel; 2-3, second overhead traction cable guide wheel set;

2-4、第三牵引索;2-5、第二拽拉器;2-6、第四牵引索;2-7、第四牵引索导向轮;2_8、第四牵引系统卷扬机;2-9、第二猫道承重索放索架及索盘;2-10、第二猫道承重索。 2-4, a third pulling cable; 2-5, a second pulling device; 2-6, fourth pulling cable; 2-7, a fourth guide wheel traction rope; 2_8, the fourth traction winch system; 2-9 The second discharge catwalk main cable carrier cable and cable tray; 2-10, a second main cable catwalk.

具体实施方式 Detailed ways

[0014] 实施例1 : [0014] Example 1:

本多塔悬索桥施工猫道分跨架设施工方法是将多跨施工猫道分跨,每两跨分为一个施工段,每个施工段布设对应的单线往复牵引系统,如图1、图2所示,本实施例为三塔悬索桥,施工猫道为四跨猫道,以第二索塔3为界设置两套单线往复牵引系统,各单线往复牵引系统独立架设猫道承重索,最后对分段架设完成后的猫道承重索在分段处固定。 This multi-tower SUSPENSION BRIDGE straddle Erection is a multi-span construction method catwalk astride, each divided into two segments span a construction, the construction of each segment corresponding to laid-line reciprocating traction system, as shown in FIG 1, FIG 2 shown, the present embodiment is a suspension bridge, the construction of four cross catwalk catwalk to a second tower 3 is provided as a boundary-line reciprocating two traction system, the traction system is independent of individual wires shuttle main cable erection catwalk, last sub after completion of the erection of the catwalk segment in the segment at a fixed main cable.

[0015] 本发明由于是一套独立牵引系统承担一个区段施工猫道的架设,猫道架设顺序作业为多点同时作业,有效提高施工猫道的架设工效。 [0015] Since the present invention is to set up an independent traction systems assume a cat track construction section, catwalk erection job is a multi-order simultaneous operation, effectively improve the efficiency of construction catwalk of erection.

[0016] 实施例2: [0016] Example 2:

如图3、4、5所示,上述实施例中的其中一套单线往复牵引系统是由第一牵引系统卷扬机1-1、第一牵引索导向轮1-2、第一塔顶牵引索导轮组1-3、第一牵引索1-4、第一拽拉器1-5、第二牵引索1-6、第二牵引索导向轮1-7、第二牵引系统卷扬机1-8组成。 As shown in FIG. 4, 5, the above-described embodiment wherein a single wire traction system is reciprocally by a first traction winch system 1-1, a first traction rope guide wheels 1-2, a first overhead traction rope guide wheel sets 1-3, 1-4 first traction cable, a first pull unit 1-5, a second pulling cable 1-6, a second pulling cable guide wheels 1-7, 1-8 second traction winch system consisting of .

[0017] 第一锚碇1处固定有第一牵引系统卷扬机1-1及第一牵引索导向轮1-2,第一索塔2的塔顶处固定有第一塔顶牵引索导轮组1-3,第二索塔3的塔顶处固定有第二牵引索导向轮1-7,第二索塔3的塔底固定有第二牵引系统卷扬机1-8 ;第一牵引系统卷扬机1-1的第一牵引索1-4经第一牵引索导向轮1-2及第一塔顶牵引索导轮组1-3连接至第一拽拉器1-5上,第二牵引系统卷扬机1-8的第二牵引索1-6经第二牵引索导向轮1-7同样连接至第一拽拉器1-5上,通过第一牵引索1-4和第二牵引索1-6同时的收放,第一拽拉器1-5能够在第一塔顶牵引索导轮组1-3与第二牵引索导向轮1-7之间运动。 [0017] 1 is fixed to a first anchor at the first traction winch systems 1-1 and 1-2 of the first pulling cable guide wheels, at the top of the column 2 is fixed to a first tower overhead traction rope has a first guide wheel sets 1-3, the overhead of the second tower 3 is fixed to a second pull rope guide wheels 1-7, the second tower bottom 3 is fixed to the second traction winch system 1-8; a first traction hoist system 1 -1 1-4 first pulling rope pulling cable through a first guide wheel 1-2 and a first overhead traction rope pulley connected to the first group 1-3 pull on 1-5, the second traction system windlass 1-8 1-6 second pulling rope pulling rope through the second guide wheels 1-7 is likewise connected to the first pull on 1-5, 1-4 through a first and a second traction cables pulling rope 1-6 simultaneously retractable, the first pulling device 1-5 can be moved between a traction cable guide wheel sets 1-7 and 1-3 the second traction cable guide wheel in the first overhead.

[0018] 第一猫道承重索1-10的架设具体包括以下步骤: [0018] The first main cable catwalk erection 1-10 includes the following steps:

步骤一,第一猫道承重索1-10前绳头由位于在第一锚碇1处的第一猫道承重索放索架及索盘1-9内放出,通过人工及其他辅助设备将其牵引到第一索塔2的塔顶,并与第一拽拉器1-5连接,见图3; A step, a first bearing cable 1-10 catwalk positioned at the front by a first rope anchor 1 is released within the first 1-9 catwalk bearing cable carrier cable and cable tray discharge, and other auxiliary equipment through the artificial which is drawn into the first tower overhead 2, and is connected to the first pull 1-5, Figure 3;

步骤二,启动第一牵引系统卷扬机1-1、第二牵引系统卷扬机1-8,第二牵引系统卷扬机1-8收绳,第一牵引系统卷扬机1-1放绳,在第二牵引索1-6及第一牵引索1-4及第一拽拉器1-5的带动下,第一猫道承重索1-10前绳头由第一索塔2的塔顶牵向第二索塔3,牵弓I 过程中第一猫道承重索放索架及索盘1-9对第一猫道承重索1-10施加反张力确保通航净空高度,见图4 ; Step two, the first traction system start windlass 1-1, 1-8 windlass second traction system, the traction system of the second closing rope winch 1-8, 1-1 first release rope winch traction system, the traction rope 1 second 6 and driven by a first traction cable 1-4 and 1-5 of the first pulling device, a first bearing cable 1-10 catwalk led from the top rope before the first tower to the second tower 2 3, during a first pull bow I catwalk main cable carrier cable and cable tray placed on the first 1-9 1-10 Ropes catwalk back tension is applied to ensure navigation headroom, shown in Figure 4;

步骤三,第一猫道承重索放索架及索盘1-9内后绳头亦即放出时,将第一猫道承重索1-10的后绳头与第一锚碇1支墩门架上的卷扬机滑车组连接,继续牵引第一猫道承重索1-10前绳头,牵引至第二索塔3顶时,临时锚固第一猫道承重索1-10的前绳头;第一锚碇1支墩门架上的卷扬机滑车组牵引第一猫道承重索1-10后绳头,将其置入猫道锚固系统完成第一猫道承重索1-10的架设,见图5 ; 实施例3 : Step three, catwalk first cable holder and the load cables discharge tray after the cable thimble i.e. 1-9 when released, the first main cable catwalk 1-10 after the first rope anchor gate buttress 1 rack hoist sheave blocks are connected, continued pulling first cable 1-10 catwalk front bearing rope pulling to the second tower 3, the first temporary anchor cable thimble catwalk front bearing 10; first a buttress anchor mast hoist traction sheave blocks 1 after a first bearing cable 1-10 catwalk thimble which was placed into the cat track anchor system complete erection of the first bearing cable catwalk 1-10, see Fig. 5; Example 3:

如图6、7、8所示,实施例1的两套单线往复牵引系统中与实施例2相配合的另一套单线往复牵引系统是由第三牵引系统卷扬机2-1、第三牵引索导向轮2-2、第二塔顶牵引索导轮组2-3、第三牵引索2-4、第二拽拉器2-5、第四牵引索2-6、第四牵引索导向轮2-7、第四牵引系统卷扬机2-8组成。 As shown in FIG. 7, 8, another embodiment of a single wire 2 cooperating singlet Example 1 embodiment two reciprocating shuttle traction system traction system is composed of a third traction system windlass 2-1, third traction rope guide wheel 2-2, the second overhead traction cable guide wheel sets 2-3, 2-4 third traction cable, pulling the second 2-5, 2-6 fourth traction rope, traction rope fourth guide wheel 2-7, 2-8 fourth traction hoist system components.

[0019] 第二锚碇5处固定有第三牵引系统卷扬机2-1及第三牵引索导向轮2-2,第三索塔4的塔顶处固定有第二塔顶牵引索导轮组2-3,第二索塔3的塔顶处固定有第四牵引索导向轮2-7,第二索塔3的塔底固定有第四牵引系统卷扬机2-8 ;第三牵引系统卷扬机2-1的第三牵弓I索2-4经第三牵弓丨索导向轮2-2及第二塔顶牵引索导轮组2-3连接至第二拽拉器2-5上,第四牵引系统卷扬机2-8的第四牵引索2-6经第四牵引索导向轮2-7同样连接至第二拽拉器2-5上,通过第三牵引索2-4和第四牵引索2-6同时的收放,第二拽拉器2-5能够在第二塔顶牵引索导轮组2-3与第四牵引索导向轮2-7之间运动。 [0019] The second anchor 5 is fixed to a third winch traction system 2-1, and a third pulling cable guide wheels 2-2, a third tower at the top of the column 4 is fixed to a second group of overhead traction cable guide wheel 2-3, the overhead of the second tower 3 is fixed to the fourth wheel 2-7 pull rope guide, a second tower bottom 3 is fixed to a fourth traction winch system 2-8; third traction winch system 2 the third pull cord bow 2-4 I-1 through the third traction cable guide wheel arch Shu overhead pulling cable 2-2 and a second guide wheel set is connected to the 2-3 pull on the second 2-5, the first four fourth traction system windlass 2-8 2-6 pulling rope pulling rope through the fourth guide wheel is also connected to a second 2-7 pull on 2-5, 2-4 by the third and fourth traction traction cables Meanwhile retractable cable 2-6, 2-5 can be pulled a second pulling cable between 2-3 and the fourth guide wheel traction rope guide wheel 2-7 in the second set of motion overhead.

[0020] 第二猫道承重索2-10的架设具体包括以下步骤: [0020] The second main cable catwalk erection 2-10 includes the following steps:

步骤一,第二猫道承重索2-10前绳头由位于在第二锚碇5处的第二猫道承重索放索架及索盘2-9内放出,通过人工及其他辅助设备将其牵弓I到第三索塔4的塔顶,并与第二拽拉器2-5连接,见图3; A step of releasing the 2-9, 2-10 second catwalk main cable by the front bearing located in a second rope anchor catwalk 5 second cable holder and the cable release cable tray, and by doing so will other auxiliary equipment I bow which led to the third tower overhead 4 and connected to the second pull 2-5, Figure 3;

步骤二,启动第三牵引系统卷扬机2-1、第四牵引系统卷扬机2-8,第四牵引系统卷扬机2-8收绳,第三牵引系统卷扬机2-1放绳,在第四牵引索2-6及第三牵引索2-4及第二拽拉器2-5的带动下,第二猫道承重索2-10前绳头由第三索塔4的塔顶牵向第二索塔3,牵弓I 过程中第二猫道承重索放索架及索盘2-9对第二猫道承重索2-10施加反张力确保通航净空高度,见图4 ; Step two, the hoist traction system to start the third 2-1, 2-8 windlass fourth traction system, the traction system of the fourth closing rope winch 2-8, 2-1 to put the third winch rope traction system, the traction rope 2 in the fourth 6 and the third driven traction cables 2-4 and 2-5 of the second pulling device, a second main cable 2-10 catwalk before the third tower from the top rope led to the second tower 4 3, during a second pull bow I catwalk main cable carrier cable and cable tray placed on the second catwalk 2-9 2-10 Ropes applying a back tension to ensure navigation headroom, shown in Figure 4;

步骤三,第二猫道承重索放索架及索盘2-9内后绳头亦即放出时,将第二猫道承重索2-10的后绳头与第二锚碇5支墩门架上的卷扬机滑车组连接,继续牵引第二猫道承重索2-10前绳头,牵引至第二索塔3顶时,临时锚固第二猫道承重索2-10的前绳头;第二锚碇5支墩门架上的卷扬机滑车组牵引第二猫道承重索2-10后绳头,将其置入猫道锚固系统完成第二猫道承重索2-10的架设,见图5 ; 实施例4 : Step three, catwalk second main cable and cable release cable carrier tray after the release time of 2-9 thimble i.e., a second main cable 2-10 catwalk after the anchor rope 5 and a second gate Buttress rack hoist sheave blocks are connected, a second tow continued catwalk rope Ropes 2-10 before pulling to the second tower 3, a second temporary anchor cable load catwalk 2-10 rope before; first two anchor windlass pulley group 5 buttress mast anchorage second traction cable 2-10 catwalk back bearing rope, put it into the anchoring system to complete the second channel cat catwalk erection main cable 2-10, see 5; Example 4:

如图9所示,实施例2的第一猫道承重索1-10和实施3的第二猫道承重索2-10均架设完成后,在第二索塔3顶部将两组承重索采用浇铸式锚头通过钢销连接,调整第一猫道承重索1-10、第二猫道承重索2-10的垂度,形成一根贯通第一锚碇1与第二锚碇5之间的通常猫道承重索,即完成三塔四跨猫道一根通常猫道承重索的架设,本施工方法还适用于四塔悬索桥、五塔悬索桥、六塔悬索桥等多塔悬索桥,相邻的两塔之间的猫道承重索架设均可采用上述方法。 9, a first embodiment of the main cable 2 catwalk embodiments 1-10 and a second of the main cable 3 catwalk 2-10 were set up after the completion of the use of two load cables top of the second tower 3 a casting between the anchor head 1 through the first anchor and the second anchor 5 are connected by steel pins, adjusting the first catwalk main cable 10, a second bearing catwalk cable sag 2-10, formed ropes are usually catwalk, complete the three towers is usually a four-span Catwalk Catwalk main cable erection, this construction method is also suitable for suspension of four towers, five tower suspension bridge, six tower suspension bridge and other multi-tower suspension bridge, adjacent catwalk between the two towers main cable may be erected by the above method.

[0021] 悬索桥施工猫道对应每根主缆设置一幅猫道,每幅猫道又有若干猫道承重索组成,其他猫道承重索架设重复实施例2、3中所述步骤即可完成全部工程所需的猫道承重索的架设,实施例2、3中所述步骤采用各自的单线往复牵引系统独立架设,同步施工,各段、 上下游猫道承重索架设相互间不干涉,有效提高施工猫道的架设工效。 [0021] SUSPENSION BRIDGE main cable is provided corresponding to each of a catwalk, each piece there are a number of catwalk catwalk main cable composition, other load cables catwalk in the erection procedure of Example 3 was repeated to complete all works required for the erection of the main cable catwalk, Examples 2, 3 of the respective single-line reciprocating step using traction system set up an independent, simultaneous construction, the segments, the load-bearing cable erection downstream catwalk not interfere with each other, the effective improve the efficiency of construction erection Catwalk.

[0022] 值得注意的是本实施例没有详细叙述的部件和结构属本行业的公知部件和常用结构或常用手段,这里不一一叙述。 [0022] It is noted that the structure and member of the present embodiment is not described in detail the case of the present embodiment industry and well-known components commonly used means or structure, it is not going to describe here.

Claims (6)

1.多塔悬索桥施工猫道分跨架设施工方法,其特征在于:将多跨施工猫道分跨,每两跨分为一个施工段,每个施工段布设对应的单线往复牵引系统,各单线往复牵引系统独立架设猫道承重索,最后对分段架设完成后的猫道承重索在分段处固定。 1. Multi-column SUSPENSION BRIDGE straddle Construction Method, comprising: a plurality of construction catwalk straddle across, each divided into two segments span a construction, the construction of each segment corresponding to laid-line reciprocating traction system, each singlet erection reciprocally independent traction systems catwalk load cables, the last segment of the catwalk complete erection of the main cable is fixed in the segment.
2.根据权利要求1所述的多塔悬索桥施工猫道分跨架设施工方法,其特征在于:所述的分段架设完成后的猫道承重索在分段处采用浇铸式锚头通过钢销固定连接。 2. The multi-column SUSPENSION BRIDGE according to claim 1 straddle Construction Method, wherein: said segment erection catwalk after the completion of use of the casting main cable segment anchor head by the steel pins fixed connection.
3.根据权利要求1所述的多塔悬索桥施工猫道分跨架设施工方法,其特征在于:所述的多跨施工猫道分为四跨猫道,以第二索塔3为界设置两套单线往复牵引系统。 The multi-column SUSPENSION BRIDGE according to claim 1 straddle Construction Method, wherein: said multi-span construction across the catwalk catwalk into four, a second bounded set two tower 3 reciprocating sleeve singlet traction system.
4.根据权利要求1所述的多塔悬索桥施工猫道分跨架设施工方法,其特征在于:所述的单线往复牵引系统是由第一牵引系统卷扬机、第一牵引索导向轮、第一塔顶牵引索导轮组、第一牵引索、第一拽拉器、第二牵引索、第二牵引索导向轮、第二牵引系统卷扬机组成;第一锚碇处固定有第一牵引系统卷扬机及第一牵引索导向轮,第一索塔的塔顶处固定有第一塔顶牵引索导轮组,第二索塔的塔顶处固定有第二牵引索导向轮,第二索塔的塔底固定有第二牵引系统卷扬机;第一牵引系统卷扬机的第一牵引索经第一牵引索导向轮及第一塔顶牵引索导轮组连接至第一拽拉器上,第二牵引系统卷扬机的第二牵引索经第二牵引索导向轮同样连接至第一拽拉器上。 The multi-column SUSPENSION BRIDGE according to claim 1 straddle Construction Method, wherein: the single-line system by a first reciprocating traction winch traction system, a first pulling cable guide wheels, the first column top pulling cable guiding wheel set, the first traction cable, pulling a first, a second pulling cable, a second pulling cable guide wheel, a second traction winch system consisting of; a first anchorage fixed at a first winch and a traction system a first pulling cable guide wheels, the first tower at the top of the column a first overhead fixed traction cable guide wheel set, the overhead of the second tower of the second pulling rope fixed to a guide wheel, a second column tower a second substrate fixed to a traction winch system; a first pulling rope pulling cable via the first guide pulley and the first traction system overhead hoist first pulling rope guide wheel set is connected to the first pull, a second traction winch system a second pulling cable pulling rope through the second guide wheel also connected to a first pull unit.
5.根据权利要求4所述的多塔悬索桥施工猫道分跨架设施工方法,其特征在于:所述的单线往复牵引系统架设第一猫道承重索时具体包括以下步骤:步骤一,第一猫道承重索前绳头由位于在第一锚碇处的第一猫道承重索放索架及索盘内放出,通过人工及其他辅助设备将其牵引到第一索塔的塔顶,并与第一拽拉器连接;步骤二,启动第一牵引系统卷扬机、第二牵引系统卷扬机,第二牵引系统卷扬机收绳,第一牵引系统卷扬机放绳,在第二牵引索及第一牵引索及第一拽拉器的带动下,第一猫道承重索前绳头由第一索塔的塔顶牵向第二索塔,牵引过程中第一猫道承重索放索架及索盘对第一猫道承重索施加反张力确保通航净空高度;步骤三,第一猫道承重索放索架及索盘内后绳头亦即放出时,将第一猫道承重索的后绳头与第一锚碇支墩门架上的卷扬机滑车组 The multi-column SUSPENSION BRIDGE claimed in claim 4, wherein the straddle Construction Method, characterized in that: said comprises the steps of erecting a first-line reciprocating traction system catwalk Ropes: a step, first Ropes catwalk by a rope situated in front of the first anchor at the first bearing catwalk release cable inner frame plate and cable release cable, and other auxiliary equipment by manually pulling it into the overhead of the first tower, and connected to the first pulling device; step two, a first traction system start windlass, winch second traction system, the traction system of the second closing rope winch, the first winch release rope traction system, the first and second traction rope pulling cable and driven by a first pulling device, the first bearing cable catwalk first tower overhead prior to the rope by the retractor to a second tower, the process of pulling the main cable catwalk first cable holder and the cable placed on disk a first bearing catwalk back tension exerted thereon to ensure navigation headroom; step three, the first release cable catwalk main cable carrier tray and inner wire rope i.e. after release of the first catwalk after the main cable and rope the first anchorage buttress gantry hoist pulley block 接,继续牵引第一猫道承重索前绳头,牵引至第二索塔顶时,临时锚固第一猫道承重索的前绳头;第一锚碇支墩门架上的卷扬机滑车组牵引第一猫道承重索后绳头,将其置入猫道锚固系统完成第一猫道承重索的架设。 Then, continuing the traction cable before the first load catwalk rope pulling to the second tower top, a first temporary anchor cable load before catwalk rope; a first anchorage buttress mast winch traction sheave blocks a first bearing Suohou Sheng catwalk head, into which the cat channel system completes a first anchor cable load catwalk erection.
6.根据权利要求5所述的多塔悬索桥施工猫道分跨架设施工方法,其特征在于:所述的单线往复牵引系统架设猫道承重索的方法步骤适用于其他各段猫道承重索架设。 The multi-column SUSPENSION BRIDGE claimed in claim 5, wherein the straddle Construction Method, wherein: said pull-in method singlet shuttle catwalk main cable system set up procedure applicable to all other segments catwalk erection Ropes .
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CN104631329B (en) * 2014-12-30 2016-06-29 中铁大桥局集团有限公司 A kind of suspension bridge continuous way cat road integral linear method of adjustment
CN104805770A (en) * 2015-04-15 2015-07-29 中交二公局第二工程有限公司 Method for erecting canyon-spanning temporary passage applicable to mountainous area
CN105155427A (en) * 2015-10-22 2015-12-16 江苏法尔胜缆索有限公司 Construction method for laying suspension bridge catwalk
CN105155427B (en) * 2015-10-22 2016-11-16 江苏法尔胜缆索有限公司 The construction method that suspension bridge cat road is laid
CN106245527A (en) * 2016-08-08 2016-12-21 中交公局第三工程有限公司 A kind of dicyclic suspender and the erection method of Long span cat road track cable
CN106245527B (en) * 2016-08-08 2019-02-01 中交第一公路工程局有限公司 A kind of erection method of dicyclic suspender and Long span cat road track cable
CN106758767A (en) * 2016-11-25 2017-05-31 中铁大桥局集团有限公司 A kind of suspension bridge segmented cat road and its construction method
CN106758767B (en) * 2016-11-25 2018-10-30 中铁大桥局集团有限公司 A kind of suspension bridge segmented cat road and its construction method
CN107447665A (en) * 2017-08-16 2017-12-08 中国十七冶集团有限公司 A kind of laying method of self-anchored suspension bridge construction cat road carrying rope

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