CN204940312U - A kind of integral lifting lowering system of steel cofferdam - Google Patents
A kind of integral lifting lowering system of steel cofferdam Download PDFInfo
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- CN204940312U CN204940312U CN201520693849.1U CN201520693849U CN204940312U CN 204940312 U CN204940312 U CN 204940312U CN 201520693849 U CN201520693849 U CN 201520693849U CN 204940312 U CN204940312 U CN 204940312U
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- steel cofferdam
- lifting lowering
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Abstract
The utility model discloses a kind of integral lifting lowering system of steel cofferdam, it is characterized in that described integral lifting lowering system comprises at least twice bracing frame and is installed on the derricking gear at two ends, support frame as described above top, per pass support frame as described above comprise two pile base steel pile casting, be positioned on described pile foundation steel pile casting connect high column and level frame is located at the Bailey beam connecing high column top described in two.The utility model has the advantages that, integral lifting lowering system composition is simple, by spreading pile foundation steel pile casting and set up Bailey beam be configured for lift by crane bracing frame, realize transferring in place to the lifting of steel cofferdam on the spot, overcome the shortcoming that routine adopts integral assembling on the bank, Xia Shui, overall transportation by driving in place, can construction costs be reduced.
Description
Technical field
The utility model relates to technical field of bridge engineering, is specifically related to a kind of integral lifting lowering system of steel cofferdam.
Background technology
Along with the develop rapidly across river Longspan Bridge, large scale of construction deep water foundation engineering gets more and more.As the construction of Chaoyang, Nanchang bridge foundation, have employed bridge deepwater shallow overburden basis (only there is about 1m at the most shallow place of covering layer) special new equipment of constructing: large-tonnage (400t) list-double-wall combined steel cofferdam.This steel cofferdam adopts two ends circular arc+intermediate rectangular structure, transfer guidance system, cofferdam coxopodite (band sword pin), cofferdam epimerite primarily of the assembled moulding bed system in cofferdam, cofferdam, reinforce and enclose the compositions such as purlin, a set of steel cofferdam is divided into 2 joints, 1 Double-Wall Steel Boxed Cofferdam coxopodite and 1 single-wall steel cofferdam epimerite, coxopodite steel cofferdam is divided into 22 cell blocks, wherein circular arc portion is divided into 12 pieces, straight line portion is divided into 10 pieces (straight line portion side plates and vertical girder all independent as a piecemeal), and epimerite is divided into 6 cell blocks.
For the lifting of steel cofferdam, conventional method is by steel cofferdam at produce in factory integrally, on-the-spot by large-scale floating crane rear integral sinking in place, needs large-scale floating clouds hanging device, has requirement to construction space and the depth of water, and can not remove recycling.
Summary of the invention
The purpose of this utility model is according to above-mentioned the deficiencies in the prior art part, a kind of integral lifting lowering system of steel cofferdam is provided, this integral lifting lowering system by spreading pile foundation steel pile casting and set up Bailey beam be configured for lift by crane bracing frame, realize transferring in place to the lifting of steel cofferdam.
The utility model object realizes being completed by following technical scheme:
A kind of integral lifting lowering system of steel cofferdam, it is characterized in that described integral lifting lowering system comprises at least twice bracing frame and is installed on the derricking gear at two ends, support frame as described above top, per pass support frame as described above comprise two pile base steel pile casting, be positioned on described pile foundation steel pile casting connect high column and level frame is located at the Bailey beam connecing high column top described in two.
Described connecing between high column top and described Bailey beam is furnished with bearing beam, and described bearing beam is the Two bors d's oeuveres H profile steel that direction across bridge is arranged.
Described derricking gear comprises transfers distribution beam, punching jack and suspension rod, described in transfer distribution beam and described punching jack is arranged in described Bailey beam two ends, described suspension rod is vertically connected to described punching jack lower end.
The utility model has the advantages that, integral lifting lowering system composition is simple, by spreading pile foundation steel pile casting and set up Bailey beam be configured for lift by crane bracing frame, realize transferring in place to the lifting of steel cofferdam on the spot, overcome the shortcoming that routine adopts integral assembling on the bank, Xia Shui, overall transportation by driving in place, can construction costs be reduced.
Accompanying drawing explanation
Fig. 1 is the integral lifting lowering system layout schematic diagram of steel cofferdam in the utility model;
Fig. 2 is the integral lifting lowering system elevational schematic view of steel cofferdam in the utility model.
Detailed description of the invention
Feature of the present utility model and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that the understanding of technician of the same trade:
Be respectively as marked 1-11 in Fig. 1-2, figure: steel cofferdam 1, derricking gear 2, bearing beam 3, pile foundation steel pile casting 4, Bailey beam 5, leading truck 6, bearing beam 7, connect high column 8, punching jack 9, transfer distribution beam 10, suspension rod 11.
Embodiment: as shown in Figure 1, 2, the present embodiment is specifically related to a kind of integral lifting lowering system of steel cofferdam, and for lifting by crane, to transfer two ends be circular arc, middle rectangular steel cofferdam, and this steel cofferdam at the scene Pile Installation Platform is assembled into entirety.
As shown in Figure 1, 2, the integral lifting lowering system in the present embodiment is made up of twice bracing frame and the derricking gear that is arranged at bracing frame top.
Bracing frame is in " ∏ " type, comprise pile foundation steel pile casting 4, connect high column 8 and Bailey beam 5, two pile base steel pile casting 4 selected by per pass bracing frame, and by connecing high column 8 by each pile foundation steel pile casting 4 spreading to exceeding the above 14m in operation platform face, the top connecing high column 8 is provided with a bit of horizontal bearing beam 3, and bearing beam 3 is specially Two bors d's oeuveres H profile steel; It is one overall for every two bearing beams 3 connecing high column 8 top being longitudinally placed with Bailey beam 5 two to be connect high column 8 connects, and it should be noted that, Bailey beam 5 is arranged by corresponding position with the suspension centre on steel cofferdam.
Derricking gear comprises transfers distribution beam 10, punching jack 9 and suspension rod 11, wherein transfer the both ends that distribution beam 10 and punching jack are symmetricly set in Bailey beam 5, suspension rod 11 is vertically arranged, and its upper end connects punching jack 9, and lower end is used for connecting with steel cofferdam 1 of transferring to be lifted.
In addition, integral lifting lowering system in the present embodiment also comprise be arranged at each pile foundation steel pile casting 4 periphery leading truck 6 for playing guide-localization effect to the steel cofferdam 1 in decentralization process, the size being dimensioned slightly smaller than steel cofferdam 1 of leading truck 6, but both shapes are corresponding, the space between leading truck 6 and steel cofferdam 1 is 5cm.
As shown in Figure 1, 2, mounting method and the operating principle thereof of the steel cofferdam integral lifting lowering system in the present embodiment are as follows:
(1) steel pipe pile is utilized to apply Pile Installation Platform, this operation platform completes the integral assembling of steel cofferdam 1, wherein, steel cofferdam 1 is Double-wall sin-gle-image radiography, length is respectively 34m, 21.4m, 13m, adopts the structure of two ends circular arc intermediate rectangular, weighs 400 tons, spacing between double-wall cofferdam wall is 1.6m, bottom sword pin height 3m;
(2) utilize the pile foundation steel pile casting 4 of steel cofferdam 1 four corner points to do reaction frame to support, after the construction of this four piles base steel pile casting 4 terminates, leading truck 6 is set in pile foundation steel pile casting 4 periphery; By four pile base steel pile casting 4 by connecing high column 8 spreading to exceeding the above 14m in operation platform face, afterwards connect high column is arranged a segment length 4m horizontal Two bors d's oeuveres H profile steel as bearing beam 3; Bearing beam 3 is longitudinally arranged the Bailey beam 5 of 21m length is to be linked to be entirety by two pile base steel pile casting 4; Bailey beam 5 is carried out on bearing beam 3 laterally fine setting to make Bailey beam 5 be formed corresponding with the hoisting point position on steel cofferdam 1;
Derricking gear is set at the two ends of each road Bailey beam 5, that is, installs at the both ends of Bailey beam 5 and transfer distribution beam 10, then fining twisted steel suspension rod 11 be installed and connect with steel cofferdam 1, then punching jack 9 is installed; It should be noted that, four lifting setting points, each suspension centre position is equipped with two φ 50 fining twisted steel suspension rods 11 and two 250t punching jack 9, by fining twisted steel suspension rod 11 with transfer distribution beam 10, Bailey beam 5 is connected with punching jack 9;
(3) after the installation of integral lifting lowering system, carry out examination and hang, start punching jack 9, steel cofferdam 1 integral lifting is about 10cm, eliminate each point joint gap and plastic strain, simultaneously the job stability of check system and safety of structure;
(4), after examination has been hung, will transfer distribution beam 10 upper hanger 11 nut and unclamp to certain altitude, oil cylinder regained by punching jack 9, and steel cofferdam 1 is transferred, and the weight of last steel cofferdam 1 is converted to by nut to be transferred in distribution beam 10.
Integral lifting lowering system composition in the present embodiment is simple, stressed braced structures is stablized, by spreading pile foundation steel pile casting and set up Bailey beam be configured for lift by crane bracing frame, realize transferring in place to the lifting of steel cofferdam on the spot, overcome the shortcoming that routine adopts integral assembling on the bank, Xia Shui, overall transportation by driving in place, can construction costs be reduced.
Claims (3)
1. the integral lifting lowering system of a steel cofferdam, it is characterized in that described integral lifting lowering system comprises at least twice bracing frame and is installed on the derricking gear at two ends, support frame as described above top, per pass support frame as described above comprise two pile base steel pile casting, be positioned on described pile foundation steel pile casting connect high column and level frame is located at the Bailey beam connecing high column top described in two.
2. the integral lifting lowering system of a kind of steel cofferdam according to claim 1, connects described in it is characterized in that between high column top and described Bailey beam and is furnished with bearing beam, and described bearing beam is the Two bors d's oeuveres H profile steel that direction across bridge is arranged.
3. the integral lifting lowering system of a kind of steel cofferdam according to claim 1, it is characterized in that described derricking gear comprises and transfer distribution beam, punching jack and suspension rod, describedly transfer distribution beam and described punching jack is arranged in described Bailey beam two ends, described suspension rod is vertically connected to described punching jack lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520693849.1U CN204940312U (en) | 2015-09-09 | 2015-09-09 | A kind of integral lifting lowering system of steel cofferdam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520693849.1U CN204940312U (en) | 2015-09-09 | 2015-09-09 | A kind of integral lifting lowering system of steel cofferdam |
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| CN204940312U true CN204940312U (en) | 2016-01-06 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869144A (en) * | 2017-11-17 | 2018-04-03 | 中铁二十二局集团第四工程有限公司 | A kind of pre- slotting ring seal Double-Wall Steel Boxed Cofferdam deep water foundation comprehensive construction method |
| CN106284081B (en) * | 2016-08-12 | 2018-07-13 | 中建三局基础设施建设投资有限公司 | A kind of blast cofferdam is as cast-in-place box beam bracket foundation construction method |
| CN109374193A (en) * | 2018-11-21 | 2019-02-22 | 中铁大桥科学研究院有限公司 | A kind of Oversea bridge steel suspended box cofferdam wave lift measuring device and method |
| CN109972846A (en) * | 2018-08-19 | 2019-07-05 | 中建六局安装工程有限公司 | A kind of moulding bed and its construction method for steel cylinder upside-down mounting jack-up construction |
| CN110606430A (en) * | 2019-08-28 | 2019-12-24 | 中铁大桥局集团有限公司 | Cofferdam hanging system and method |
| CN110644363A (en) * | 2019-06-24 | 2020-01-03 | 高军 | Construction method of underwater main tower of cross-river cable-stayed bridge of high-speed railway |
| CN110777826A (en) * | 2019-11-07 | 2020-02-11 | 孟北方 | Cofferdam hoisting and lowering construction device and cofferdam hoisting and lowering construction method |
| CN112267481A (en) * | 2020-10-22 | 2021-01-26 | 郑州大学 | Steel cofferdam lowering construction method |
| CN114319400A (en) * | 2022-02-17 | 2022-04-12 | 中交第三航务工程局有限公司 | Assembling and lowering process of steel cofferdam for underwater bearing platform construction |
-
2015
- 2015-09-09 CN CN201520693849.1U patent/CN204940312U/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284081B (en) * | 2016-08-12 | 2018-07-13 | 中建三局基础设施建设投资有限公司 | A kind of blast cofferdam is as cast-in-place box beam bracket foundation construction method |
| CN107869144A (en) * | 2017-11-17 | 2018-04-03 | 中铁二十二局集团第四工程有限公司 | A kind of pre- slotting ring seal Double-Wall Steel Boxed Cofferdam deep water foundation comprehensive construction method |
| CN109972846A (en) * | 2018-08-19 | 2019-07-05 | 中建六局安装工程有限公司 | A kind of moulding bed and its construction method for steel cylinder upside-down mounting jack-up construction |
| CN109374193A (en) * | 2018-11-21 | 2019-02-22 | 中铁大桥科学研究院有限公司 | A kind of Oversea bridge steel suspended box cofferdam wave lift measuring device and method |
| CN110644363A (en) * | 2019-06-24 | 2020-01-03 | 高军 | Construction method of underwater main tower of cross-river cable-stayed bridge of high-speed railway |
| CN110606430B (en) * | 2019-08-28 | 2020-12-01 | 中铁大桥局集团有限公司 | Cofferdam hanging system and method |
| CN110606430A (en) * | 2019-08-28 | 2019-12-24 | 中铁大桥局集团有限公司 | Cofferdam hanging system and method |
| CN110777826A (en) * | 2019-11-07 | 2020-02-11 | 孟北方 | Cofferdam hoisting and lowering construction device and cofferdam hoisting and lowering construction method |
| CN110777826B (en) * | 2019-11-07 | 2021-06-18 | 孟北方 | Cofferdam hoisting and lowering construction device and cofferdam hoisting and lowering construction method |
| CN112267481A (en) * | 2020-10-22 | 2021-01-26 | 郑州大学 | Steel cofferdam lowering construction method |
| CN112267481B (en) * | 2020-10-22 | 2022-02-18 | 郑州大学 | Steel cofferdam lowering construction method |
| CN114319400A (en) * | 2022-02-17 | 2022-04-12 | 中交第三航务工程局有限公司 | Assembling and lowering process of steel cofferdam for underwater bearing platform construction |
| CN114319400B (en) * | 2022-02-17 | 2023-12-29 | 中交第三航务工程局有限公司 | Assembling and lowering process of steel cofferdam for underwater bearing platform construction |
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