CN104088225A - Large-span steel structure hanging basket for bridge and installation method thereof - Google Patents
Large-span steel structure hanging basket for bridge and installation method thereof Download PDFInfo
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- CN104088225A CN104088225A CN201410303143.XA CN201410303143A CN104088225A CN 104088225 A CN104088225 A CN 104088225A CN 201410303143 A CN201410303143 A CN 201410303143A CN 104088225 A CN104088225 A CN 104088225A
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- hanging basket
- bridge
- suspender belt
- girder
- span steel
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Abstract
Provided is a large-span steel structure hanging basket for a bridge. A girder longitudinally arranged is arranged at the bottom of the hanging basket and provided with multiple girder connecting plates transversely arranged, spreader beams are arranged on the girder connecting plates, multiple bamboo gangplanks are arranged on the spreader beams, guard bars are arranged on the two sides of the upper portion of the hanging basket, lifting holes are formed in the two ends of the girder, and the hanging basket is fixedly connected with chambers at the bottom of the bridge through hanging straps. An installation method for the large-span steel structure hanging basket for the bridge includes the following steps that (1) a bridge floor of the bridge is connected with the lifting holes of the hanging basket through lifting devices and steel wire ropes, and the hanging basket is lifted to the position below the chambers; (2) constructors are in the chambers and on the hanging basket, the chambers are connected with the hanging basket through the hanging straps, and the hanging straps are anchored through a limiting beam; (3) the lifting devices are torn down. The large-span steel structure hanging basket is installed through the steps. The technical difficulty that the large-span bridge is difficult to construct is overcome, the security coefficient is high, the whole section can be covered and constructed, and the working range is wide.
Description
Technical field
The present invention relates to field of bridge construction, particularly large-span steel hanging basket and mounting method thereof for a kind of bridge.
Background technology
Although that current domestic bridge decorative engineering driven hanging basket used has is simple to operate, safe and reliable, reduced investment, efficiency high, due to limitation factors such as its span are little, is difficult to meet the requirement of execution conditions for some specific execution conditions.For example certain bridge is double width bridge, its cross section is as shown in Fig. 1,2, full width width 30.5m, in the middle of two width, establish 2cm seam wide, and the maximum 15m of alternative driven hanging basket span in prior art, be difficult to meet construction requirement, and this driven hanging basket is subject to the impact of bridge floor marble railing, mobile difficulty causes operation covering radius limited.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of bridge large-span steel hanging basket and mounting method thereof, can be suitable for the decoration construction of wider bridge, and is convenient to processing, installation, and construction cost is low.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of bridge large-span steel hanging basket, hanging basket bottom is provided with the girder of longitudinal layout, girder is by many parallel i iron, and adopt polylith girder junction plate to connect, and girder is provided with spreader beam, and spreader beam is provided with polylith bamboo springboard, the both sides, top of hanging basket are provided with guardrail, and the two ends of girder are provided with lifting eye;
Hanging basket is fixedly connected with the case chamber base plate of bridge by suspender belt.
Described girder adopts the structure of Two bors d's oeuveres i iron, and two longitudinal i iron connect the splicing that adopts reinforcement steel plate to carry out web and connect.
Suspender belt one end is connected with spacing beam through case chamber base plate, and the other end of suspender belt is connected with spacing beam through the Two bors d's oeuveres i iron of girder.
In described spacing beam, two channel-section steels arrange back-to-back, and the upper and lower surface of two channel-section steels connects by multichip connection plate, and the spacing between two channel-section steels is enough to make suspender belt to pass, and spacing beam middle part is provided with suspender belt hole.
Outside guardrail, be also provided with protective screening.
A mounting method for large-span steel hanging basket for above-mentioned bridge, comprises the following steps:
One, connect the lifting eye of hanging basket by wire rope with boom hoisting at the bridge floor of bridge, lifting hanging basket is to below, case chamber;
Two, constructor is at case on indoor and hanging basket, by suspender belt connecting box chamber and hanging basket, and by spacing beam by suspender belt anchoring;
Three, remove boom hoisting;
Realize the installation of large-span steel hanging basket by above-mentioned steps.
Described suspender belt is at least four.
Described boom hoisting is two mobile cranes.
Suspender belt is that the Yu Xiang chamber, suspender belt hole of leaving over connects through case chamber Hanging Basket cantilever pouring, after one section of decoration construction completes, by boom hoisting, hanging basket is moved to the suspender belt hole that next row is left over.
A kind of bridge large-span steel hanging basket and mounting method thereof provided by the invention, by adopting special steel work hanging basket, overcome the technical difficulty that Longspan Bridge is difficult to construction, because main Surveillance of Continuous Beam is all left over suspender belt hole in each stage of Hanging Basket cantilever pouring, substantially there is 1 row's embedded hole for every 4m, therefore the steel work Hanging Basket in the present invention can be from 1 row's preformed hole to next row preformed hole under the radius of gyration of crane, and often moving to 1 row's preformed hole just uses the suspender belt that finish rolling steel is made to carry out anchoring to hanging basket, so hanging basket safety factor is high, and can cover full section construction, job area is wider.The present invention is convenient to processing, is installed, and construction cost is low.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the structural representation that lifts by crane hanging basket in the present invention.
Fig. 2 is the structural representation that in the present invention, suspender belt connects hanging basket.
Fig. 3 is the structural representation of the hanging basket after installation in the present invention.
Fig. 4 is the structural representation of hanging basket in the present invention.
Fig. 5 is the schematic side view of hanging basket in the present invention.
Fig. 6 is the partial enlarged drawing at B place in Fig. 5.
Fig. 7 is the partial schematic diagram of middle girder of the present invention termination connecting portion.
Fig. 8 is the partial enlarged drawing of the spacing beam in B place in Fig. 4.
Fig. 9 is that the master of spacing beam in the present invention looks schematic diagram.
Figure 10 is the schematic top plan view of spacing beam in the present invention.
Hanging basket 1, lifting eye 11, girder 12, girder junction plate 13, strengthens steel plate 14, spreader beam 15, bamboo springboard 16, guardrail 17, boom hoisting 2, bridge 3, wire rope 4, case chamber 5, suspender belt 6, spacing beam 7, suspender belt hole 71, channel-section steel 72, gusset 73, junction plate 74.
Detailed description of the invention
Embodiment 1:
In Fig. 3～10, a kind of bridge large-span steel hanging basket, hanging basket 1 bottom is provided with the girder 12 of longitudinal layout, girder 12 is by many parallel i iron, and adopt polylith girder junction plate 13 to connect, and girder 12 is provided with spreader beam 15, and spreader beam 15 is provided with polylith bamboo springboard 16, the both sides, top of hanging basket 1 are provided with guardrail 17, and the two ends of girder 12 are provided with lifting eye 11;
Hanging basket 1 is fixedly connected with case chamber 5 base plates of bridge 3 by suspender belt 6.
Preferred structure is as shown in Fig. 6,7, and described girder 12 adopts the structure of Two bors d's oeuveres i iron, connects as two i iron longitudinal in Fig. 7 connect the splicing that adopts reinforcement steel plate 14 to carry out web.This is owing to not having on the market at present so huge shaped steel, thus adopt the long Two bors d's oeuveres 45c i iron splicing connection of 2 17m, and welding position adopts 700mm × 380mm × 10mm steel plate full weld to strengthen.
Preferred structure is as shown in Fig. 3,4, and suspender belt 6 one end are connected with spacing beam 7 through case chamber 5 base plates, and the other end of suspender belt 6 is connected with spacing beam 7 through the Two bors d's oeuveres i iron of girder 12.Described suspender belt 6 adopts Φ 25mm fining twisted steel to make.
Preferred structure is as shown in Fig. 8～10, and in described spacing beam 7, two channel-section steels arrange back-to-back, and the upper and lower surface of two channel-section steels connects by multichip connection plate 74, and the spacing between two channel-section steels is enough to make suspender belt 6 to pass, and spacing beam 7 middle parts are provided with suspender belt hole 71.
Outside guardrail 17, be also provided with protective screening.
Embodiment 2:
A mounting method for large-span steel hanging basket for above-mentioned bridge, comprises the following steps:
One, connect the lifting eye 11 of hanging basket 1 by wire rope 4 with boom hoisting 2 at the bridge floor of bridge 3, lifting hanging basket 1 is to 5 belows, case chamber; In this example, described boom hoisting 2 is two mobile cranes.Now 1 of steel work hanging basket is subject to self gravitation effect load.As shown in Figure 1.
Two, constructor is in case chamber 5 and on hanging basket 1, by suspender belt 6 connecting box chambers 5 and hanging basket 1, and by spacing beam 7 by suspender belt 6 anchorings; Suspender belt 6 is that the Yu Xiang chamber, suspender belt hole 5 of leaving over connects through case chamber 5 Hanging Basket cantilever pourings, as shown in Figure 2.
Three, remove boom hoisting 2, the suspender belt 6 that hanging basket 1 is made up of essence bundle screw-thread steel is completely stressed, now manually can enter hanging basket and carry out beam body base plate decoration construction; As shown in Figure 3.Preferably, described suspender belt 6 is at least four.
Realize the installation of large-span steel hanging basket by above-mentioned steps.
After one section of decoration construction completes, by boom hoisting 2, hanging basket 1 is moved to the suspender belt hole that next row is left over.
The present invention through adopt Midas Civil space finite element program to three kinds of above-mentioned Construction States under, the main bearing beam of lifting by crane under state, anchoring status, normal construction state is carried out modeling checking computations, and safety and the reasonability of checking structure meet construction requirement completely.
Claims (9)
1. a bridge large-span steel hanging basket, it is characterized in that: hanging basket (1) bottom is provided with the girder (12) of longitudinal layout, girder (12) is by many parallel i iron, and adopt polylith girder junction plate (13) to connect, girder (12) is provided with spreader beam (15), spreader beam (15) is provided with polylith bamboo springboard (16), and the both sides, top of hanging basket (1) are provided with guardrail (17), and the two ends of girder (12) are provided with lifting eye (11);
Hanging basket (1) is fixedly connected with case chamber (5) base plate of bridge (3) by suspender belt (6).
2. a kind of bridge large-span steel hanging basket according to claim 1, is characterized in that: described girder (12) adopts the structure of Two bors d's oeuveres i iron, and two longitudinal i iron connect the splicing that adopts reinforcement steel plate (14) to carry out web and connect.
3. a kind of bridge large-span steel hanging basket according to claim 2, it is characterized in that: suspender belt (6) one end is connected with spacing beam (7) through case chamber (5) base plate, and the other end of suspender belt (6) is connected with spacing beam (7) through the Two bors d's oeuveres i iron of girder (12).
4. a kind of bridge large-span steel hanging basket according to claim 1, it is characterized in that: in described spacing beam (7), two channel-section steels are arranged back-to-back, the upper and lower surface of two channel-section steels connects by multichip connection plate (74), spacing between two channel-section steels is enough to make suspender belt (6) to pass, and spacing beam (7) middle part is provided with suspender belt hole (71).
5. a kind of bridge large-span steel hanging basket according to claim 1, is characterized in that: guardrail is also provided with protective screening outside (17).
6. a mounting method for large-span steel hanging basket for the bridge described in claim 1～5 any one, is characterized in that comprising the following steps:
One, connect the lifting eye (11) of hanging basket (1) by wire rope (4) with boom hoisting (2) at the bridge floor of bridge (3), lifting hanging basket (1) to case chamber (5) below;
Two, constructor in case chamber (5) and hanging basket (1) upper, by suspender belt (6) connecting box chamber (5) and hanging basket (1), and by spacing beam (7) by suspender belt (6) anchoring;
Three, remove boom hoisting (2);
Realize the installation of large-span steel hanging basket by above-mentioned steps.
7. the mounting method of large-span steel hanging basket for a kind of bridge according to claim 6, is characterized in that: described suspender belt (6) is at least four.
8. the mounting method of large-span steel hanging basket for a kind of bridge according to claim 6, is characterized in that: described boom hoisting (2) is two mobile cranes.
9. the mounting method of large-span steel hanging basket for a kind of bridge according to claim 6, it is characterized in that: the Yu Xiang chamber, suspender belt hole (5) that suspender belt (6) is left over through case chamber (5) base plate Hanging Basket cantilever pouring connects, after one section of decoration construction completes, by boom hoisting (2), hanging basket (1) is moved to the suspender belt hole that next row is left over.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410303143.XA CN104088225B (en) | 2014-06-30 | 2014-06-30 | Bridge large-span steel hanging basket and installation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410303143.XA CN104088225B (en) | 2014-06-30 | 2014-06-30 | Bridge large-span steel hanging basket and installation method thereof |
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| Publication Number | Publication Date |
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| CN104088225A true CN104088225A (en) | 2014-10-08 |
| CN104088225B CN104088225B (en) | 2016-06-15 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005330693A (en) * | 2004-05-19 | 2005-12-02 | Jfe Engineering Kk | Working device and method for inspection and repair of steel structure |
| JP2007113348A (en) * | 2005-10-24 | 2007-05-10 | Yoneyama Kogyo Kk | Movable suspension-type scaffold device and construction method of movable suspension type scaffold |
| CN102009929A (en) * | 2010-11-11 | 2011-04-13 | 江苏百崮钢结构工程有限公司 | Movably-assembled anti-collision bridge wall construction hanging basket |
| CN102121235A (en) * | 2010-12-17 | 2011-07-13 | 杭州市市政工程集团有限公司 | Operating platform device moving at bottom of bridge |
| CN102733321A (en) * | 2012-07-17 | 2012-10-17 | 北京市公路桥梁建设集团有限公司 | Suspension bracket system for existing bridge reinforcing and building method of suspension bracket system |
| CN202530375U (en) * | 2012-05-07 | 2012-11-14 | 中铁十局集团建筑工程有限公司 | Basket trolley for bridge body construction |
| CN204000621U (en) * | 2014-06-30 | 2014-12-10 | 葛洲坝集团电力有限责任公司 | Bridge large-span steel hanging basket |
-
2014
- 2014-06-30 CN CN201410303143.XA patent/CN104088225B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005330693A (en) * | 2004-05-19 | 2005-12-02 | Jfe Engineering Kk | Working device and method for inspection and repair of steel structure |
| JP2007113348A (en) * | 2005-10-24 | 2007-05-10 | Yoneyama Kogyo Kk | Movable suspension-type scaffold device and construction method of movable suspension type scaffold |
| CN102009929A (en) * | 2010-11-11 | 2011-04-13 | 江苏百崮钢结构工程有限公司 | Movably-assembled anti-collision bridge wall construction hanging basket |
| CN102121235A (en) * | 2010-12-17 | 2011-07-13 | 杭州市市政工程集团有限公司 | Operating platform device moving at bottom of bridge |
| CN202530375U (en) * | 2012-05-07 | 2012-11-14 | 中铁十局集团建筑工程有限公司 | Basket trolley for bridge body construction |
| CN102733321A (en) * | 2012-07-17 | 2012-10-17 | 北京市公路桥梁建设集团有限公司 | Suspension bracket system for existing bridge reinforcing and building method of suspension bracket system |
| CN204000621U (en) * | 2014-06-30 | 2014-12-10 | 葛洲坝集团电力有限责任公司 | Bridge large-span steel hanging basket |
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| CN104088225B (en) | 2016-06-15 |
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