CN105755959B - Suitable for the Sarasota construction auxiliary stand system and building method of different cross section - Google Patents
Suitable for the Sarasota construction auxiliary stand system and building method of different cross section Download PDFInfo
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- CN105755959B CN105755959B CN201610138193.6A CN201610138193A CN105755959B CN 105755959 B CN105755959 B CN 105755959B CN 201610138193 A CN201610138193 A CN 201610138193A CN 105755959 B CN105755959 B CN 105755959B
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- climbing frame
- frame
- sarasota
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to a kind of Sarasota construction auxiliary stand system and building method suitable for different cross section, the system includes steel pipe, climbing frame, hoisting frame, anchor ear, chain block and insurance steel cable, wherein, steel pipe is provided with four, it is separately fixed at around Sarasota, and can vertical extension, it is used as climbing frame, the guide rail that hoisting frame is fixed and climbed, climbing frame is provided with three layers, it is fixed on four steel pipes, and each layer of climbing frame is circumferentially laid along Sarasota, Sarasota is enclosed in interior, hoisting frame is fixed on four steel pipes, circumferentially laid along Sarasota, Sarasota is enclosed in interior, and positioned at the top of the superiors' climbing frame, anchor ear is located on steel pipe, for supporting climbing frame or hoisting frame, chain block is connected between adjacent two layers climbing frame, or be connected between climbing frame and hoisting frame, insurance steel cable is connected between adjacent two layers climbing frame, or be connected between climbing frame and hoisting frame.Compared with prior art, auxiliary stand system of the present invention can simplify work progress, reduce construction risk.
Description
Technical field
The present invention relates to a kind of Sarasota construction method, constructed more particularly, to a kind of Sarasota suitable for different cross section shape
Auxiliary stand system and building method, belong to field of bridge construction.
Background technology
It is domestic at present to carry out Sarasota construction frequently with overmolded technique and mould crawling process.Wherein over-form construction is above section rope
Tower top section template is as fixed knot and load part, and the template for installing section dismounting is constructed, and scaffold need to be set up in addition
It is used as operation platform；Creeping formwork is made up of jumping formwork, climbing frame and climbing equipment, is pouring the pre-buried track shear key in section, edge
Track section by section hydraulic lifting construct, from the template climbed scaffold cradle can save the external scaffolding in work progress.
Conventional Sarasota construction auxiliary stand domestic at present has scaffold, creeping formwork support.Scaffold is to use steel pipe, pin hand
Plate etc., which is successively set up, to be formed, due to the limitation of scaffolding height, if being used to that during high tower conversion platform segmented-erection and dismounting need to be used,
Work high above the ground governing factor is more, and construction safety risk is big.Creeping formwork support is same with jumping formwork using hydraulic climbing shuttering as support
Step lifting, if but the Sarasota changeable for section, track is pre-buried, installation accuracy is poor, and difficulty of construction is big.
It is oblique that the A of Publication No. CN 103898836 Chinese patent discloses a kind of high entablature steel of cable-stayed bridge H type Sarasotas
Leg prestress stent construction method, for field of bridge construction, it uses steel battered leg bracket and bow member come crossbeam of constructing, it is to avoid
High trestle method is constructed the installation and dismounting of a large amount of steel pipe supports in the prior art, when reducing Sarasota construction the installation of built-in fitting and
Later stage patch work, reduces overhead welding workload and material, work high above the ground risk is greatly reduced, while also having evaded high branch
Frame reserves the problems such as decrement and difficult pre-buried calf support camber setting；Clearly, upper node will be perpendicular for steel battered leg bracket stress
The oblique horizontally outward component exerted oneself on Sarasota, lower node is passed to load to apply in advance by prestress wire at inter-tie
Plus prestressing force offset, the oblique vertical force component exerted oneself is born by Sarasota on lower node.In addition, Sarasota and the asynchronous construction of crossbeam,
The template of crossbeam side construction Sarasota and high-altitude dismantling and the installation of climbing frame are avoided, security risk is reduced, shortens the duration.But
It is that above-mentioned construction method is only applicable to cable-stayed bridge H type Sarasotas, and constructs and do not apply to for the Sarasota of other cross sectional shapes.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of simplified work progress,
Reduce the Sarasota construction auxiliary stand system and building method suitable for different cross section of construction risk.
The purpose of the present invention can be achieved through the following technical solutions：
Suitable for the Sarasota construction auxiliary stand system of different cross section, the system includes：
Steel pipe：Provided with four, be separately fixed at around Sarasota, and can vertical extension, fix and climb as climbing frame, hoisting frame
The guide rail risen；
Climbing frame：Provided with three layers, it is fixed on four steel pipes, and each layer of climbing frame is circumferentially laid along Sarasota, by Sarasota bag
In being trapped among；
Hoisting frame：Be fixed on four steel pipes, circumferentially laid along Sarasota, Sarasota is enclosed in, and climbed positioned at the superiors
The top of frame；
Anchor ear：It is located on steel pipe, for supporting climbing frame or hoisting frame；
Chain block：It is connected between adjacent two layers climbing frame, or is connected between climbing frame and hoisting frame；
Insurance steel cable：It is connected between adjacent two layers climbing frame, or is connected between climbing frame and hoisting frame.
Further, the climbing frame of the superiors and the climbing frame in intermediate layer connect integral by truss.
Further, section steel platform is set to carry out closing of revealing all the details between undermost climbing frame and Sarasota.
Further, in addition to the activity that is arranged between adjacent two layers climbing frame or is arranged between climbing frame and hoisting frame is climbed
Ladder.
Further, described climbing frame includes main frame body and guardrail, and guardrail is located on main frame body；It is logical provided with cat ladder in climbing frame
Road, climbing frame surrounding sets steel wire totally-enclosed.
Further, the platform and guardrail of described hoisting frame are closed using wire netting.
Further, 4 reinforcing bars are welded along steel pipe walls in the bottom of anchor ear to support as insurance.
Suitable for the building method of the Sarasota construction auxiliary stand system of different cross section, comprise the following steps：
a）By the built-in fitting on cushion cap, four steel pipes as whole auxiliary stand guide rail are installed；
b）Installing bottom layer climbing frame：4 anchor ears are first installed on steel pipe, the anchor ear to be locked on steel pipe divides as support
The climbing frame of block installing bottom layer, similarly installs remaining 2 layers of climbing frame and hoisting frame from lower to upper；
c）Chain block is hung respectively between adjacent two layers climbing frame, and between climbing frame and hoisting frame as lifting power dress
Put, and connect insurance steel cable；
d）After the Sarasota construction for completing a section, 4 steel pipes of spreading lift one cable tower segment of hoisting frame using tower crane
Height, the climbing frame of the superiors is hung over by chain block to be lifted on hoisting frame, and the climbing frame of lower floor is hung by chain block
Being lifted on adjacent upper climbing frame, and adjust anchor ear position makes anchor ear be locked on steel pipe and is supported on the climbing frame of new high degree
Or below hoisting frame, complete singlepass circulation.
Entirety is linked to be by sway bracing pipe between 4 steel pipes, steel pipe sets one of cross pipe for every 24 meters along short transverse, simultaneously
Steel pipe sets the attached wall part being fixedly connected together with Sarasota along short transverse every 6 meters；During connected two steel-pipe weldings, steel pipe connects
Head full weld, and weld on the outside of coupling stiffened steel plates.
Compared with prior art, the present invention has advantages below and beneficial effect：
1st, auxiliary stand system of the present invention can be applied to the Tasso of variable cross-section or variable diameters, only pass through the auxiliary stand system
System can complete the construction of whole Tasso different cross section section, it is not necessary to cover auxiliary stand more, therefore construct convenient, the same to time
Save and install and the operating time, additionally it is possible to reduce the cost of manufacture of auxiliary stand.
2nd, auxiliary stand of the present invention it is main by can vertical extension steel pipe, hoisting frame, climbing frame, chain block, safety lanyard
The composition such as rope and anchor ear, structure setting is simple, and in build process, one Sarasota section of hoisting frame is lifted using tower crane
The height of section, climbing frame is hung over by chain block and lifted on hoisting frame, therefore is lifted up and down conveniently, real by locking anchor ear
It is easy to operate now to the support of hoisting frame or climbing frame.
The 3rd, levels cat ladder passage is set in climbing frame, and between adjacent two layers climbing frame or between climbing frame and hoisting frame
Adjustable ladder is set, the activity operations between different layers are realized.
4th, section steel platform is set to carry out closing of revealing all the details between undermost climbing frame and Sarasota, climbing frame surrounding sets steel wire complete
Closing, the platform and guardrail of hoisting frame are closed using wire netting, are welded 4 reinforcing bars along steel pipe walls in the bottom of anchor ear and are made
For insurance support, therefore, auxiliary stand system results of the invention consolidate safe, reduction construction risk.
Brief description of the drawings
Fig. 1 is Sarasota construction auxiliary stand system structure diagram of the invention.
Label in figure：1 is steel pipe, and 2 be hoisting frame, and 3 be climbing frame, and 4 be anchor ear, and 5 be chain block, and 6 be insurance steel cable,
7 be adjustable ladder, and 8 be tower crane, and 9 be cat ladder passage, and 10 be elevator, and 11 be cable tower segment.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
A kind of Sarasota construction auxiliary stand system suitable for different cross section, as shown in figure 1, the system includes steel pipe 1, climbed
Frame 3, hoisting frame 2, anchor ear 4, chain block 5, insurance steel cable 6 and adjustable ladder 7.Steel pipe 1 is provided with four, is separately fixed at rope
Around tower, and can vertical extension, the guide rail fixed and climbed as climbing frame 3, hoisting frame 2.Climbing frame 3 is provided with three layers, is fixed on four
On root steel pipe 1, and each layer of climbing frame 3 is circumferentially laid along Sarasota, Sarasota is enclosed in, wherein, the climbing frame 3 of the superiors is with
The climbing frame 3 of interbed connects integral by truss.Section steel platform is set to carry out envelope of revealing all the details between undermost climbing frame 3 and Sarasota
Close.Climbing frame 3 includes main frame body and guardrail, and guardrail is located on main frame body；Levels cat ladder passage 9, climbing frame 3 four are set in climbing frame 3
Week sets steel wire totally-enclosed.Hoisting frame 2 is fixed on four steel pipes 1, is circumferentially laid along Sarasota, Sarasota is enclosed in, and
Positioned at the top of the superiors' climbing frame 3, the platform and guardrail of hoisting frame 2 are closed using wire netting.Anchor ear 4 is located on steel pipe 1,
For supporting climbing frame 3 or hoisting frame 2, weld 4 reinforcing bars along steel pipe walls in the bottom of anchor ear 4 and supported as insurance.Chain block
5 are connected between adjacent two layers climbing frame 3, or are connected between climbing frame 3 and hoisting frame 2.Insurance steel cable 6 is connected to adjacent two layers
Between climbing frame 3, or it is connected between climbing frame 3 and hoisting frame 2.Adjustable ladder 7 is arranged between adjacent two layers climbing frame 3 or is arranged on
Between climbing frame 3 and hoisting frame 2.
Suitable for the building method of the Sarasota construction auxiliary stand system of different cross section, comprise the following steps：
A, by the built-in fitting on cushion cap, install four steel pipe Isosorbide-5-Nitrae root steel pipes 1 as whole auxiliary stand guide rail it
Between entirety is linked to be by sway bracing pipe, steel pipe 1 is along short transverse one of cross pipe of every 24 meters of settings, while steel pipe 1 is along short transverse
The attached wall part being fixedly connected together with Sarasota is set every 6 meters；When two steel pipes 1 that are connected are welded, coupling full weld, and in steel
Welding stiffened steel plates on the outside of pipe joint；
B, installing bottom layer climbing frame：4 anchor ears 4 are first installed on steel pipe, using the anchor ear 4 that is locked on steel pipe as supporting,
The climbing frame 3 of piecemeal installing bottom layer, similarly installs remaining 2 layers of climbing frame 3 and hoisting frame 2 from lower to upper；
C, to hang between adjacent two layers climbing frame 3, and between climbing frame 3 and hoisting frame 2 chain block 5 respectively dynamic as lifting
Power apparatus, and connect insurance steel cable 6；
After d, the Sarasota construction of one section of completion, 4 steel pipes 1 of spreading utilize tower crane 8 to lift 2 one Sarasotas of hoisting frame
The height of section, the climbing frame 3 of the superiors is hung over by chain block 5 to be lifted on hoisting frame 2, and the climbing frame 3 of lower floor passes through hand
Draw cucurbit 5 to hang over to be lifted on adjacent upper climbing frame 3, and adjusting the position of anchor ear 4 makes anchor ear 4 be locked on steel pipe 1 and support
Below the climbing frame 3 or hoisting frame 2 of new high degree, singlepass circulation is completed.
In the present embodiment, Sarasota total height is 107.928m, and tower top elevation is+114.502m, and bridge floor level above is
81.107m.Sarasota section is formed by " circle " and " side " combined transformation, Sarasota from the downward 39.0m of tower top be circular section section, thus
It is that circular section changes to square-section section to bottom of towe.Tower top diameter of section is 6.5m, and circular section starts to change section to square-section
A diameter of 5.5m king-posts minimum dimension.Will according to Sarasota design feature, bracket position and the section construction of upper king-post strut staying cable anchorage zone
Ask, Sarasota is divided into 19 construction sections.Sarasota 1,2 sections are constructed using conventional two-row scaffold, and 3 ~ 19 sections are adopted
Constructed with the auxiliary stand system of the present invention.
Steel pipe 1 is using major diameter spiral steel pipe such as more than external diameter 80cm steel pipe.The height of climbing frame 3 is 3.2m, in climbing frame 3
The high 2m of main frame body, the high 1.2m of guardrail；The height of hoisting frame 2 is 1.72 meters, and 3 climbing frames are the master of Sarasota construction auxiliary stand
Body.The external diameter of insurance steel cable 6 uses 28mm.Anchor ear 4 sets 4 brackets, and anchor ear internal diameter is Φ 820mm, and panel is 12mm steel plates,
Adpting flange is 12mm steel plates, and floor is 12mm steel plates, and anchor ear flange is connected using the grade high-strength bolt of 8 M20 × 100 8.8
Connect, bolt hole is φ 22.
Sarasota construction is completed after cable tower segment 11, and spreading steel pipe 1 is lifted to cable tower segment to be onstructed height using tower crane 8
Hoisting frame 2, and lock anchor ear 4.Climbing frame 3 is successively lifted respectively using chain block 5, and locks anchor ear 4, hangs insurance steel cable
6.Adjustable ladder 7 and cat ladder passage 9 are improved, convenient construction operating personnel is from elevator 10 to the upper and lower operation of safety after climbing frame.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using invention.
Person skilled in the art obviously can easily make various modifications to these embodiments, and described herein general
Principle is applied in other embodiment without passing through performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
Field technique personnel are according to the announcement of the present invention, and not departing from improvement and modification that scope made all should be the present invention's
Within protection domain.
Claims (5)
- The auxiliary stand system 1. a kind of Sarasota suitable for different cross section is constructed, it is characterised in that the system includes：Steel pipe（1）：Provided with four, be separately fixed at around Sarasota, and can vertical extension, be used as climbing frame（3）, hoisting frame（2）Gu Guide rail that is fixed and climbing；Climbing frame（3）：Provided with three layers, four steel pipes are fixed on（1）On, and each layer of climbing frame（3）Circumferentially laid along Sarasota, by rope In tower is enclosed in；Hoisting frame（2）：It is fixed on four steel pipes（1）On, circumferentially laid along Sarasota, Sarasota is enclosed in, and positioned at the superiors Climbing frame（3）Top；Anchor ear（4）：It is located at steel pipe（1）On, for supporting climbing frame（3）Or hoisting frame（2）；Chain block（5）：It is connected to adjacent two layers climbing frame（3）Between, or it is connected to climbing frame（3）With hoisting frame（2）Between；Insurance steel cable（6）：It is connected to adjacent two layers climbing frame（3）Between, or it is connected to climbing frame（3）With hoisting frame（2）Between；The climbing frame of the superiors（3）With the climbing frame in intermediate layer（3）Connect integral by truss；Undermost climbing frame（3）With Sarasota Between set section steel platform reveal all the details closing；Also include being arranged on adjacent two layers climbing frame（3）Between or be arranged on climbing frame（3）With hoisting frame（2）Between adjustable ladder （7）；Described climbing frame（3）Including main frame body and guardrail, guardrail is located on main frame body；Climbing frame（3）It is interior to be provided with cat ladder passage（9）, Climbing frame（3）Surrounding sets steel wire totally-enclosed.
- The auxiliary stand system 2. a kind of Sarasota suitable for different cross section according to claim 1 is constructed, it is characterised in that Described hoisting frame（2）Platform and guardrail closed using wire netting.
- The auxiliary stand system 3. a kind of Sarasota suitable for different cross section according to claim 1 is constructed, it is characterised in that In anchor ear（4）Bottom along steel pipe walls weld 4 reinforcing bars be used as insurance support.
- The building method of auxiliary stand system 4. a kind of Sarasota suitable for different cross section as described in claims 1 to 3 is constructed, It is characterised in that it includes following steps：a）By the built-in fitting on cushion cap, four steel pipes as whole auxiliary stand guide rail are installed（1）；b）Installing bottom layer climbing frame：4 anchor ears are first installed on steel pipe（4）, to be locked at the anchor ear on steel pipe（4）As support, The climbing frame of piecemeal installing bottom layer（3）, remaining 2 layers of climbing frame is similarly installed from lower to upper（3）And hoisting frame（2）；c）Respectively in adjacent two layers climbing frame（3）Between, and climbing frame（3）With hoisting frame（2）Between hang chain block（5）As carrying Power set are risen, and connect insurance steel cable（6）；d）After the Sarasota construction for completing a section, 4 steel pipes of spreading（1）, utilize tower crane（8）Lift hoisting frame（2）One rope The height of tower section, the climbing frame of the superiors（3）Pass through chain block（5）Hang over hoisting frame（2）It is upper to be lifted, the climbing frame of lower floor （3）Pass through chain block（5）Hang over adjacent upper climbing frame（3）It is upper to be lifted, and adjust anchor ear（4）Position makes anchor ear（4）Lock Tightly in steel pipe（1）Go up and be supported on the climbing frame of new high degree（3）Or hoisting frame（2）Lower section, completes singlepass circulation.
- The building method of auxiliary stand system 5. the Sarasota according to claim 4 suitable for different cross section is constructed, it is special Levy and be, the steel pipe described in 4（1）Between entirety, steel pipe are linked to be by sway bracing pipe（1）Along short transverse, every 24 meters are set together Cross pipe, while steel pipe（1）The attached wall part being fixedly connected together with Sarasota is set along short transverse every 6 meters；Be connected two steel Pipe（1）During welding, coupling full weld, and weld on the outside of coupling stiffened steel plates.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610138193.6A CN105755959B (en) | 2016-03-11 | 2016-03-11 | Suitable for the Sarasota construction auxiliary stand system and building method of different cross section |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610138193.6A CN105755959B (en) | 2016-03-11 | 2016-03-11 | Suitable for the Sarasota construction auxiliary stand system and building method of different cross section |
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| CN105755959A CN105755959A (en) | 2016-07-13 |
| CN105755959B true CN105755959B (en) | 2017-07-28 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107700819B (en) * | 2017-10-26 | 2023-01-17 | 中铁大桥局集团第八工程有限公司 | Tower column construction internal climbing frame and tower column construction method adopting same |
| CN113684758B (en) * | 2021-09-07 | 2023-12-05 | 中国铁建大桥工程局集团有限公司 | Self-anchored suspension bridge construction auxiliary device |
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| JP2003328323A (en) * | 2002-05-15 | 2003-11-19 | Kajima Corp | Construction method of tower structure |
| JP2010048060A (en) * | 2008-08-25 | 2010-03-04 | Shimizu Corp | Construction method of structure |
| CN103243654A (en) * | 2013-05-16 | 2013-08-14 | 中交路桥华南工程有限公司 | Mounting method for steel anchor beam of cable-stayed bridge and assembly jig and cable bent tower mounting platform used in method |
| CN103898836A (en) * | 2014-03-03 | 2014-07-02 | 中铁港航局集团有限公司 | Method for construction of high upper beam steel oblique leg prestress support of H-shaped cable bent tower of cable-stayed bridge |
| CN105155414A (en) * | 2015-09-24 | 2015-12-16 | 中铁四局集团第二工程有限公司 | Floor-type slant-legged steel truss bracket of lower transverse beam of large-span cable tower |
| CN205501830U (en) * | 2016-03-11 | 2016-08-24 | 广东省长大公路工程有限公司 | Cable support tower construction removable support |
-
2016
- 2016-03-11 CN CN201610138193.6A patent/CN105755959B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003328323A (en) * | 2002-05-15 | 2003-11-19 | Kajima Corp | Construction method of tower structure |
| JP2010048060A (en) * | 2008-08-25 | 2010-03-04 | Shimizu Corp | Construction method of structure |
| CN103243654A (en) * | 2013-05-16 | 2013-08-14 | 中交路桥华南工程有限公司 | Mounting method for steel anchor beam of cable-stayed bridge and assembly jig and cable bent tower mounting platform used in method |
| CN103898836A (en) * | 2014-03-03 | 2014-07-02 | 中铁港航局集团有限公司 | Method for construction of high upper beam steel oblique leg prestress support of H-shaped cable bent tower of cable-stayed bridge |
| CN105155414A (en) * | 2015-09-24 | 2015-12-16 | 中铁四局集团第二工程有限公司 | Floor-type slant-legged steel truss bracket of lower transverse beam of large-span cable tower |
| CN205501830U (en) * | 2016-03-11 | 2016-08-24 | 广东省长大公路工程有限公司 | Cable support tower construction removable support |
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