CN103243658B - The spelling method of cable stayed bridge dragging suspension basket - Google Patents

The spelling method of cable stayed bridge dragging suspension basket Download PDF

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Publication number
CN103243658B
CN103243658B CN201310181950.4A CN201310181950A CN103243658B CN 103243658 B CN103243658 B CN 103243658B CN 201310181950 A CN201310181950 A CN 201310181950A CN 103243658 B CN103243658 B CN 103243658B
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China
Prior art keywords
spelling
basket
stayed bridge
hanging basket
cable stayed
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CN201310181950.4A
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Chinese (zh)
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CN103243658A (en
Inventor
江俊波
庄值政
雷志超
何志强
张敬弦
刘怀刚
安邦
Original Assignee
中交路桥华南工程有限公司
中交路桥建设有限公司
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Priority to CN201310181950.4A priority Critical patent/CN103243658B/en
Publication of CN103243658A publication Critical patent/CN103243658A/en
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Abstract

The present invention discloses a kind of cable stayed bridge dragging suspension basket, this dragging suspension basket comprise can be stitched together mutually in the first half of " saying " word frame construction and latter half, described first half comprises the main longitudinal grider of pair of parallel setting and the front beam be arranged between this main longitudinal grider and middle cross beam; The tail longeron that the pair of parallel setting be connected with described main longitudinal grider conllinear is drawn together in its latter half of subpackage and the rear cross beam be arranged near this tail longeron rear end.The spelling method of this dragging suspension basket, first utilize Sarasota lower transverse beam that one bracket is installed, this bracket completes the construction of 0-1# girder, then utilize the reserved interim rope of king-post to complete Hanging Basket spelling stage+module, carry out the spelling of Hanging Basket first half, and complete building of 0-2# block; Secondly first half Hanging Basket is fallen and on platform forward, spelling latter half Hanging Basket; Finally by Hanging Basket Integral lifting good for spelling, and with the 0-2# girder anchor connection of described cable stayed bridge.Easy construction of the present invention, cost reduce, security risk is low.

Description

The spelling method of cable stayed bridge dragging suspension basket
Technical field
The present invention relates to a kind of road and bridge construction technology, particularly relate to a kind of spelling method of cable stayed bridge dragging suspension basket.
Background technology
Cable stayed bridge is a kind of deck system pressurized, the bridge of support system tension, and its deck system is made up of stiff girder, and its support system is made up of cable wire.After Sweden's Stromsun bridge in 1956 has pulled open the prelude that modern cable stayed bridge builds, along with the development of material science and computer science, built a large amount of cable stayed bridges both at home and abroad, and it is also progressively increasing across footpath.Cable stayed bridge is large with its span ability, structural performance good, easy construction, for ease of maintenaince, low cost and the profile lightly advantage such as attractive in appearance, developed rapidly.The main feature of cable stayed bridge is the elasticity intermediate supports that the oblique cable utilizing bridge tower to draw collapses as beam, so as to reducing the section turn moment that beam collapses, alleviating beam weight, improving the span ability of beam.
Cable stayed bridge is one is the combining structure that basic structure forms by rope, tower, beam, and wherein, Liang Heta is main supporting member, and both are combined into overall structure.According to the supporting way of beam, comprising the bind mode of beam and tower or pier, form multi-form precursor structure, but be all borrow oblique cable to be hung on tower with the form of resiliency supported by beam, this middle spring support (oblique cable) enhances the rigidity of beam, defines the nonprismatic continuous beam of multiple spot resiliency supported, single cantilever beam, T-shaped rigid frame and continuous rigid frame.
The scaffold equipment, method of cable stayed bridge generally speaking has three kinds of common methods: Support Method, incremental launching method and cantilever-construction.Many employings in first two method CONSTRUCTION OF CABLE-STAYED BRIDGE in early days, for current cable stayed bridge of growing up, especially the many employings of the close cable stayed-cable bridge of multispan are from bridge tower to the cantilever construction of both sides, support section by section with oblique cable.Cantilever-construction is generally first water No. 0 beam section in king-post district, using the initial beam section as placement lifting appliance, then with various lifting appliance from king-post both sides symmetrical mounting rail section successively, cantilever is extended until close up, and this method needs to use a kind of important equipment---dragging suspension basket.
Operation very important together in the process that the spelling of dragging suspension basket is built at stayed-cable bridge cantilever, the mode of tradition Hanging Basket spelling is: first on ward, carry out dragging suspension basket spelling, then the lifting systems such as hoist engine are utilized to carry out Hanging Basket lifting, finally Hanging Basket is anchored in girder, finally completes the spelling of Hanging Basket.
Generally, when bridge floor is overhead lower, No. 0 and No. 1 Cast-in-Situ Segment all set up falsework construction, set up the spelling that rack platform carries out Hanging Basket after having constructed again; And when bridge floor is overhead higher, then adopt and land steel pipe support spelling Hanging Basket, carry out cast-in-place section construction and Hanging Basket cantilever construction.Along with China's expanding economy, the Longspan Bridge in a collection of deep water foundation and valley, mountain area will be built on a large scale, and cable stayed bridge will become first-selected bridge type because having Great span ability.But mountain area CONSTRUCTION OF CABLE-STAYED BRIDGE narrow field, bridge floor is higher apart from ground level, can reach more than 100m, and required timbering material quantity is too large, and cost is higher, sets up simultaneously and remove also extremely inconvenient, and security risk is large, long construction period; And Hanging Basket Integral lifting height is higher, security risk is very big.For this reason, need a kind of new Hanging Basket spelling method to reduce the security risk of mountain area cable stayed bridge Hanging Basket spelling, cost and construction period.
Summary of the invention
The object of the invention is, overcome the deficiencies in the prior art, there is provided that a kind of security risk is low, the duration shorten, construction cost is low, be adapted at that execution conditions difference, landform are precipitous, the spelling method of cable stayed bridge dragging suspension basket that the place of narrow field and main equipment and component conveying difficulty is carried out.
For reaching above technical purpose, the technical solution used in the present invention is as follows:
A kind of cable stayed bridge dragging suspension basket, wherein, this dragging suspension basket comprises the first half in " saying " word frame construction and latter half that can be stitched together mutually, described first half comprises the main longitudinal grider of pair of parallel setting and the front beam be arranged between this main longitudinal grider and middle cross beam, this front beam is arranged on the front end near main longitudinal grider, and middle cross beam is arranged on the middle rear end near main longitudinal grider; The tail longeron that the pair of parallel setting be connected with described main longitudinal grider conllinear is drawn together in its latter half of subpackage and the rear cross beam be arranged near this tail longeron rear end.
The spelling method of above-mentioned cable stayed bridge dragging suspension basket, it comprises the following steps:
(1) in the both sides of the lower transverse beam of the Sarasota built up, Bailey truss formula bracket is installed;
(2) using described Bailey truss formula bracket as job platform, build the 0-1# girder of cable stayed bridge, so far complete the installation of the spelling platform of dragging suspension basket;
(3) spelling of dragging suspension basket first half is carried out at described spelling platform;
(4) with the good dragging suspension basket first half of described spelling for job platform, build the 0-2# girder of cable stayed bridge;
(5) first half of described Hanging Basket is pushed away before cable-stayed bridge main-beam bearing of trend, until reserve the space of spelling Hanging Basket latter half;
(6) spelling of Hanging Basket latter half is carried out at described spelling platform;
(7) by Hanging Basket Integral lifting good for spelling, and with the 0-2# girder anchor connection of described cable stayed bridge, so far complete the installation of dragging suspension basket.
Particularly, described Sarasota also comprises the bracket being arranged on its lower transverse beam both sides and the interim rope be arranged on its king-post, and described Bailey truss formula bracket one end is fixedly connected with described bracket, its other end and described interim rope anchor connection.
Further, described Hanging Basket entirety is by arranging the 0-2# girder anchor connection of middle anchor pole, middle hanger and rear suspension bar on its main longitudinal grider, middle cross beam and tail longeron and cable stayed bridge respectively again.
Compared with prior art, the present invention has following advantage:
The spelling method of a, cable stayed bridge dragging suspension basket provided by the invention, with the spelling platform of the Bailey truss formula bracket be erected on Sarasota as Hanging Basket, overcomes mountain construction narrow field and the high condition inferior position of bridge floor height, engineering is more easily carried out;
The spelling method of b, cable stayed bridge dragging suspension basket provided by the invention, Bailey truss formula bracket entirety is freely supported structure, and the bracket loading characteristic of main stress structure is clear and definite, construction is simple, supporting capacity is large, structural safety; Suo Li also by adjusting interim rope makes bracket be in suitable force-bearing situation;
The spelling method of c, cable stayed bridge dragging suspension basket provided by the invention, makes two bites at a cherry the installation of spelling platform and the spelling of Hanging Basket, reduces the risk of construction material erection & lift.
Accompanying drawing explanation
Fig. 1 is the structural representation of spelling platform in the spelling method of cable stayed bridge dragging suspension basket of the present invention, and wherein Bailey truss formula bracket is installed, and 0-1# girder has been built.
Fig. 2 is the schematic diagram of Hanging Basket first half after spelling platform spelling completes in the spelling method of cable stayed bridge dragging suspension basket of the present invention.
Fig. 3 is the position view of each parts of Hanging Basket latter half spelling front axle beam in the spelling method of cable stayed bridge dragging suspension basket of the present invention, and wherein 0-2# girder has been built, and the first half of Hanging Basket before pushes away.
Fig. 4 is the schematic diagram of Hanging Basket Integral lifting in the spelling method of cable stayed bridge dragging suspension basket of the present invention, the instrument side-looking structural representation of Hanging Basket latter half is mainly shown, promoting.
Fig. 5 is the structure top view of dragging suspension basket in the spelling method of cable stayed bridge dragging suspension basket of the present invention.
Fig. 6 is the schematic diagram of the anchor structure of Hanging Basket entirety and bridge main beam in the spelling method of cable stayed bridge dragging suspension basket of the present invention.
Detailed description of the invention
Be described in further detail as follows below in conjunction with the spelling method of the drawings and specific embodiments to cable stayed bridge dragging suspension basket of the present invention:
With reference to figure 1-6, first, in the both sides of the lower transverse beam 11 of the Sarasota 1 built up, Bailey truss formula bracket 2 is installed; Secondly, using described Bailey truss formula bracket 2 as job platform, build the 0-1# girder 31 of cable stayed bridge, as shown in Figure 1, so far complete the installation of the spelling platform (sign) of dragging suspension basket.
Described Sarasota 1 also comprises the bracket 5 being embedded in its lower transverse beam 11 both sides and the interim rope 4 be arranged on its king-post.Described bracket 2 makes full use of the design feature of cable stayed bridge, its rear end utilizes described bracket 5 and fining twisted steel (not shown) to be fixed on lower transverse beam 11 both sides of Sarasota 1, this bracket 5 mainly bears the vertical shear that bracket 2 produces because of deadweight, and this fining twisted steel mainly bears the pulling force that bracket 2 brings this bracket 5; One end of described interim rope 4 is fixed on described king-post, and the other end is then fixed on the front end of bracket 2, thus plays bracket 2 and hang positioning action temporarily.
Then, described spelling platform carries out the spelling of dragging suspension basket first half 61, as shown in Figure 2 according to the preset structure of dragging suspension basket 6 described later; Again, with the good first half Hanging Basket 61 of described spelling for job platform, the 0-2# girder 32 of cable stayed bridge is built, as shown in Figure 3; Next step, utilize jack 5 and reaction frame 7 to push away before cable-stayed bridge main-beam bearing of trend the first half 61 of described Hanging Basket, until reserve the space of spelling Hanging Basket latter half 62, as shown in Figure 3; Next step, carry out the spelling of Hanging Basket latter half 62, as shown in Figure 4 at described spelling platform again.
From above-mentioned several construction sequences, in the present invention, the 0# girder 3 of this cable stayed bridge divides in fact two sections and builds, described in first utilizing, the 0-1# girder 31 near Sarasota 1 built by mounted bracket 2, recycle the 0-2# girder 32 that the good Hanging Basket first half 61 of described spelling builds contiguous 0-1# girder 31, building of these two sections of girders all utilizes the mounted job platform of part successively to complete, avoid once promoting too much construction material, and then decrease construction risk at the construction field (site) with this.
Please refer to Fig. 5, from the top view of dragging suspension basket 6: whole Hanging Basket 6 is in " saying " word frame construction, and Hanging Basket 6 includes first half 61 and the latter half 62 of sliceable Hanging Basket together.The first half 61 of described Hanging Basket comprise be arranged in parallel a pair main longitudinal grider 611, be set in parallel in front beam 612 between this main longitudinal grider 611 and middle cross beam 613, wherein, described front beam 612 is arranged on the front end near main longitudinal grider 611, and middle cross beam 613 is arranged on the middle rear end near main longitudinal grider 611; The latter half 62 of described Hanging Basket comprises the tail longeron 622 of the pair of parallel setting be connected with described main longitudinal grider 611 conllinear and is arranged on the rear cross beam 622 of close described tail longeron 621 rear end.
Finally, by Hanging Basket 6 Integral lifting good for spelling, and with 0-2# girder 32 anchor connection of described cable stayed bridge, as shown in Figure 4 and Figure 6, so far complete the installation of dragging suspension basket.
Please refer to Fig. 5 and Fig. 6, described Hanging Basket 6 also comprises for promoting himself and being anchored at the anchor system on cable-stayed bridge main-beam, and this anchor system comprises the C-type beam 63 in this main longitudinal grider 611 and middle cross beam 613 junction be arranged on main longitudinal grider 611, be arranged on main longitudinal grider 611 and anchor pole 64 in this C-type beam 63 contiguous, be arranged on the rear suspension bar 65 of tail longeron 622 end and be arranged on the middle hanger (not shown) in middle cross beam 613 stage casing; On each longitudinal and cross beam of Hanging Basket 6, offer the preformed hole 6111,6131 and 6211 of the described middle anchor pole 64 of installation, middle hanger (not shown) and rear suspension bar 65 respectively.
In the work progress of reality, the lifting of Hanging Basket 6 is in fact the installation process of anchor system, with reference to figure 4 and Fig. 6, during this Hanging Basket 6 utilizes, anchor pole 64 and jack 9 promote, middle anchor pole 64 should be tightened slightly before lifting, then the interim rope 4 of bracket 2 is put and open, need several of symmetric position interim ropes to carry out when this interim rope 4 is put to put simultaneously, open along putting of interim rope 4, the weight of Hanging Basket 6 is slowly transferred on 0# girder 3, finally promote Hanging Basket 6 by middle hanger and rear suspension bar 65 again, and anchoring, described c type beam 63 is across on 0# girder 3, simultaneously to be arranged on thrust terminator 66 on tail longeron 621 and reverse ejection device 67 stablizes Hanging Basket 6, Hanging Basket spelling is completed with this.
In sum, the spelling method easy construction of cable stayed bridge dragging suspension basket of the present invention, cost reduce, security risk is low, be adapted at that execution conditions difference, landform are precipitous, the place of narrow field and main equipment and component conveying difficulty implements.
Therefore; above-described embodiment is the present invention's preferably embodiment; but be not merely restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be all included within protection scope of the present invention.

Claims (3)

1. a spelling method for cable stayed bridge dragging suspension basket, it is characterized in that, it comprises the following steps:
(1) in the both sides of the lower transverse beam of the Sarasota built up, Bailey truss formula bracket is installed;
(2) using described Bailey truss formula bracket as job platform, build the 0-1# girder of cable stayed bridge, so far complete the installation of the spelling platform of dragging suspension basket;
(3) spelling of dragging suspension basket first half is carried out at described spelling platform;
(4) with the good dragging suspension basket first half of described spelling for job platform, build the 0-2# girder of cable stayed bridge;
(5) first half of described Hanging Basket is pushed away before cable-stayed bridge main-beam bearing of trend, until reserve the space of spelling Hanging Basket latter half;
(6) spelling of Hanging Basket latter half is carried out at described spelling platform;
(7) by Hanging Basket Integral lifting good for spelling, and with the 0-2# girder anchor connection of described cable stayed bridge, so far complete the installation of dragging suspension basket;
Wherein, described dragging suspension basket comprises the first half in " saying " word frame construction and latter half that can be stitched together mutually, described first half comprises the main longitudinal grider of pair of parallel setting and the front beam be arranged between this main longitudinal grider and middle cross beam, this front beam is arranged on the front end near main longitudinal grider, and middle cross beam is arranged on the middle rear end near main longitudinal grider; The tail longeron that the pair of parallel setting be connected with described main longitudinal grider conllinear is drawn together in its latter half of subpackage and the rear cross beam be arranged near this tail longeron rear end.
2. the spelling method of cable stayed bridge dragging suspension basket as claimed in claim 1, it is characterized in that: described Sarasota also comprises the bracket being arranged on its lower transverse beam both sides and the interim rope be arranged on its king-post, described Bailey truss formula bracket one end is fixedly connected with described bracket, its other end and described interim rope anchor connection.
3. the spelling method of cable stayed bridge dragging suspension basket as claimed in claim 1, is characterized in that: described Hanging Basket is overall by being separately positioned on the 0-2# girder anchor connection of anchor pole, middle hanger and rear suspension bar and cable stayed bridge on its main longitudinal grider, middle cross beam and tail longeron.
CN201310181950.4A 2013-05-16 2013-05-16 The spelling method of cable stayed bridge dragging suspension basket CN103243658B (en)

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103726445B (en) * 2013-12-05 2015-09-09 中交一公局第三工程有限公司 The construction method that a kind of cable-stayed bridge with tower beam consolidation 0# block support cast-in-place combines with Hanging Basket cantilever
CN103898835B (en) * 2014-03-02 2015-11-11 葛洲坝集团第一工程有限公司 The anti-back of the body of bridge draws load-bearing construction bracket and construction method
CN104314013B (en) * 2014-10-14 2016-04-20 中铁大桥局集团有限公司 Two Cantilever Construction Methods of a kind of pole asymmetrical array beam
CN104652289B (en) * 2015-03-20 2016-06-08 中建三局第三建设工程有限责任公司 Dragging suspension basket slide installation method
CN105735146B (en) * 2016-03-11 2017-11-03 广东省长大公路工程有限公司 The different rope construction method of dragging suspension basket of concrete deck cable stayed bridge
CN110158467B (en) * 2018-03-07 2020-12-15 中国铁建港航局集团有限公司 Sectional installation method for composite guy cable hanging basket in narrow region

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JP2004197313A (en) * 2002-12-16 2004-07-15 Kajima Corp Method of laying beam-like structure
CN101158146A (en) * 2007-11-20 2008-04-09 中铁大桥局集团第二工程有限公司 Cable-stayed bridge main-beam sliding form frame system and construction method
CN201526014U (en) * 2009-08-27 2010-07-14 孙广喜 Internal cable-stayed bailey cradle

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KR100969005B1 (en) * 2009-11-06 2010-07-09 동아대학교 산학협력단 Constructing method of suspension bridge and temporary cable therefor

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Publication number Priority date Publication date Assignee Title
CN2597531Y (en) * 2002-11-21 2004-01-07 广东省长大公路工程有限公司第一分公司 Single rope face tracting rope hanging cage
JP2004197313A (en) * 2002-12-16 2004-07-15 Kajima Corp Method of laying beam-like structure
CN101158146A (en) * 2007-11-20 2008-04-09 中铁大桥局集团第二工程有限公司 Cable-stayed bridge main-beam sliding form frame system and construction method
CN201526014U (en) * 2009-08-27 2010-07-14 孙广喜 Internal cable-stayed bailey cradle

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