CN112523112A - Method for dismantling overhead suspension casting hanging basket - Google Patents
Method for dismantling overhead suspension casting hanging basket Download PDFInfo
- Publication number
- CN112523112A CN112523112A CN202011301353.7A CN202011301353A CN112523112A CN 112523112 A CN112523112 A CN 112523112A CN 202011301353 A CN202011301353 A CN 202011301353A CN 112523112 A CN112523112 A CN 112523112A
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- China
- Prior art keywords
- dismantling
- basket
- rigid frame
- hanging basket
- truss
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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
- E01D21/10—Cantilevered erection
Abstract
The invention discloses a method for dismantling a high-altitude suspension casting hanging basket, which can realize the gradual descending of a sling by utilizing small lifting appliances such as a chain block and the like, can safely, quickly and low-cost dismantle a bottom basket, can greatly save the construction cost, has obvious overall economic benefit, avoids using large-scale machinery and equipment to dismantle the bottom basket, greatly reduces the dismantling cost, does not need large-scale mechanical equipment for dismantling, and reduces the safety risk in the dismantling process. The invention solves the problem that the dismantling cost is high because the dismantling of the bottom basket of the suspended casting hanging basket of the conventional continuous rigid frame bridge is generally carried out by using large-scale machinery and equipment.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a method for dismantling a high-altitude suspension casting hanging basket.
Background
At present, the bottom basket of the suspended casting hanging basket of the domestic continuous rigid frame bridge is generally dismantled by using large-scale machinery and equipment, and multiple machines and equipment need to be put into synchronous operation, so that the dismantling cost of the bottom basket of the hanging basket is high.
Disclosure of Invention
In order to overcome the defects in the prior art, a method for dismantling a high-altitude suspended casting hanging basket is provided so as to solve the problems that the dismantling cost is high because large-scale machinery and equipment are generally used for dismantling the bottom basket of the suspended casting hanging basket of the conventional continuous rigid frame bridge.
In order to achieve the purpose, the high-altitude suspension casting hanging basket dismantling method comprises the following steps:
a plurality of through reserved holes are formed in the vertical direction of the rigid frame bridge corresponding to the lowering point of the hanging basket;
slings are arranged in the reserved holes in a penetrating mode, the middle parts of the slings are detachably connected to the truss, and the lower ends of the slings are connected to the bottom basket;
dismantling the suspender on the bottom basket to enable the bottom basket to be hung on the truss through a sling;
and the sling is placed section by section through the reserved hole, so that the bottom basket is integrally placed on the ground.
Further, the step of lowering the sling section by section through the reserved hole comprises:
a. installing a chain block on the truss and installing an anchorage device at the reserved hole of the rigid frame bridge;
b. adjusting a lifting hook of the chain block to an upper limit position;
c. removably attaching a middle portion of the sling to the hook at an upper limit position;
d. after the sling is detachably connected to the lifting hook, the lifting hook of the chain block is lowered to a lower limit position;
e. after the lifting hook reaches the lower limit position, the sling is detached and detachably mounted on the anchorage device;
f. and e, repeating the steps b to e until the bottom basket is lowered to the ground.
Further, the supporting rack is installed to the truss, the supporting rack includes the relative two stands that set up and connects in two many horizontal poles between the stand, many the horizontal pole is followed the direction of height interval of stand sets up, chain block's upper end detachably connect in one the horizontal pole.
Further, the sling is a steel strand.
Furthermore, a pre-buried pipe is buried in the rigid frame bridge, and the reserved hole is formed in the pre-buried pipe.
Further, the upper portion of rigid frame bridge extends along the bridge floor direction and forms the flange board, reserve the hole and form in the flange board.
The method for dismantling the high-altitude suspension casting hanging basket has the advantages that the sling can be lowered section by utilizing small lifting appliances such as a chain block, the bottom basket can be dismantled safely, quickly and at low cost, the construction cost can be greatly saved, the whole economic benefit is obvious, large-scale machinery and equipment are avoided for dismantling the bottom basket, the dismantling cost is greatly reduced, large-scale mechanical equipment is not needed for dismantling, and the safety risk in the dismantling process is reduced. In addition, the construction efficiency of dismantling the suspended casting hanging baskets is improved, synchronous dismantling of a plurality of suspended casting hanging baskets can be realized, and the construction period of dismantling the suspended casting hanging baskets is saved by more than 2 times compared with that of a conventional dismantling method.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic view of a bottom basket mounted to a rigid frame bridge via a boom according to an embodiment of the present invention.
Fig. 2 is a schematic view of the bottom basket of the embodiment of the invention being hung on a truss by a sling.
Fig. 3 is a side view of the bottom basket of the embodiment of the present invention suspended from the truss by the suspension cable.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1 is a schematic view of a bottom basket of an embodiment of the present invention mounted on a rigid frame bridge through a boom (the bottom basket is mounted on the rigid frame bridge through the boom in a normal working state of an overhead suspended casting basket), fig. 2 is a schematic view of the bottom basket of the embodiment of the present invention mounted on a truss through a sling, and fig. 3 is a side view of the bottom basket of the embodiment of the present invention mounted on the truss through a sling.
Referring to fig. 1, the pannier 1 includes a rail 11, a truss 12, a boom 13, and a bottom basket 14.
The track 11 is laid on the rigid frame bridge 2. Truss 12 is slidably disposed on track 11. The front end and the rear end of the bottom basket 14 are detachably hung on the bottom of the truss 12 and the rigid frame bridge 2 through the hanger rods 13. The bottom basket 14 is suspended below the bottom of the rigid frame bridge 2.
The rigid frame bridge is box-shaped. Both sides of the upper portion of the rigid frame bridge 2 extend in the deck direction to form flange plates 21.
Referring to fig. 1 to 3, the invention provides a method for dismantling a high-altitude suspended casting hanging basket, which comprises the following steps:
s1: and a plurality of through reserved holes are vertically formed in the rigid frame bridge 2 corresponding to the lowering point of the hanging basket 1. The prepared holes are formed in the flange plates 21 on both sides of the rigid frame bridge 2.
Specifically, the number of the reserved holes is four, and the reserved holes correspond to four corner parts of the rectangular bottom basket respectively.
The vertical pre-buried pipe is buried in the flange plate of the rigid frame bridge 2. The embedded pipe penetrates through the flange plate of the rigid frame bridge. The pre-buried pipe is provided with a pre-reserved hole.
S2: the sling 3 is arranged in the reserved holes in a penetrating way, the middle part of the sling 3 is detachably connected to the truss 12, and the lower end of the sling 3 is connected to the bottom basket 14.
The sling 3 is a steel strand. The steel strand is arranged in the reserved hole in a penetrating mode.
Specifically, the lower end of the steel strand is connected to the bottom basket, and the middle of the steel strand is connected to the truss.
S3: the hanger rods 13 on the bottom basket 14 are removed so that the bottom basket 14 is hung on the truss 12 by the suspension wires 3.
After the sling is connected with the bottom basket and the truss, the suspender on the bottom basket can be detached, so that the bottom basket is completely hung on the truss by the sling.
S4: the slings 3 are lowered section by section through the reserved holes so that the bottom basket 14 is lowered to the ground as a whole.
Specifically, step S4 includes the following steps:
a. and a chain block 5 is arranged on the truss 12, and an anchorage device is arranged at the reserved hole of the rigid frame bridge 2.
In particular, truss 12 is fitted with support frame 4.
The supporting frame 4 includes two upright columns disposed opposite to each other and a plurality of cross bars connected between the two upright columns. And a plurality of cross rods are arranged at intervals along the height direction of the upright post. The upper end (upper hook) of the chain block 5 is detachably connected to a cross bar.
In this embodiment, the supporting frame is installed to the front end of truss (based on the advancing direction of hanging the basket on the rigid frame bridge), welds the channel-section steel on the vertical pole in the middle part of truss as the hanging point of chain block's upper end (upper portion lifting hook).
b. The hook (lower hook) of the chain block 5 is adjusted to the upper limit position.
c. The middle part of the sling 3 is detachably attached to a hook (lower hook) at an upper limit position.
d. After the hoist cable 3 is detachably connected to the hook (lower hook), the hook (lower hook) of the chain block 5 is lowered to the lower limit position.
e. After the hook (lower hook) reaches the lower position, the sling 3 is detached and detachably attached to the anchor.
f. And e, repeating the steps b to e until the bottom basket 14 is lowered to the ground.
According to the method for dismantling the high-altitude suspended casting hanging basket, the sling can be lowered section by utilizing small lifting appliances such as chain blocks, the bottom basket can be dismantled safely, quickly and at low cost, the construction cost can be greatly saved, the overall economic benefit is obvious, large-scale machinery and equipment are avoided for dismantling the bottom basket, the dismantling cost is greatly reduced, large-scale mechanical equipment is not needed for dismantling, and the safety risk in the dismantling process is reduced. In addition, the construction efficiency of dismantling the suspended casting hanging baskets is improved, synchronous dismantling of a plurality of suspended casting hanging baskets can be realized, and the construction period of dismantling the suspended casting hanging baskets is saved by more than 2 times compared with that of a conventional dismantling method.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (6)
1. The method for dismantling the high-altitude suspension casting hanging basket is characterized in that the hanging basket comprises a track laid on a rigid frame bridge, a truss slidably arranged on the track and a bottom basket detachably hung on the truss and the rigid frame bridge through a hanging rod, the bottom basket is arranged below the rigid frame bridge, and the dismantling method comprises the following steps:
a plurality of through reserved holes are formed in the vertical direction of the rigid frame bridge corresponding to the lowering point of the hanging basket;
slings are arranged in the reserved holes in a penetrating mode, the middle parts of the slings are detachably connected to the truss, and the lower ends of the slings are connected to the bottom basket;
dismantling the suspender on the bottom basket to enable the bottom basket to be hung on the truss through a sling;
and the sling is placed section by section through the reserved hole, so that the bottom basket is integrally placed on the ground.
2. The method for dismantling the overhead hanging basket according to claim 1, wherein the step of lowering the suspension cable section by section through the pre-made hole comprises:
a. installing a chain block on the truss and installing an anchorage device at the reserved hole of the rigid frame bridge;
b. adjusting a lifting hook of the chain block to an upper limit position;
c. removably attaching a middle portion of the sling to the hook at an upper limit position;
d. after the sling is detachably connected to the lifting hook, the lifting hook of the chain block is lowered to a lower limit position;
e. after the lifting hook reaches the lower limit position, the sling is detached and detachably mounted on the anchorage device;
f. and e, repeating the steps b to e until the bottom basket is lowered to the ground.
3. The method for dismantling the overhead hanging basket according to claim 2, wherein the truss is provided with a support frame, the support frame comprises two opposite upright columns and a plurality of cross bars connected between the two upright columns, the cross bars are arranged at intervals along the height direction of the upright columns, and the upper end of the chain block is detachably connected to one cross bar.
4. The method for dismantling the overhead hanging basket according to claim 1, wherein the slings are steel strands.
5. The method for dismantling the overhead hanging basket according to claim 1, wherein a pre-buried pipe is embedded in the rigid frame bridge, and the reserved hole is formed in the pre-buried pipe.
6. The method for dismantling the overhead hanging basket according to claim 1, wherein the upper portion of the rigid frame bridge extends in a bridge deck direction to form a flange plate, and the reserved holes are formed in the flange plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011301353.7A CN112523112A (en) | 2020-11-19 | 2020-11-19 | Method for dismantling overhead suspension casting hanging basket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011301353.7A CN112523112A (en) | 2020-11-19 | 2020-11-19 | Method for dismantling overhead suspension casting hanging basket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112523112A true CN112523112A (en) | 2021-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011301353.7A Pending CN112523112A (en) | 2020-11-19 | 2020-11-19 | Method for dismantling overhead suspension casting hanging basket |
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| CN (1) | CN112523112A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113265958A (en) * | 2021-04-27 | 2021-08-17 | 河南乾坤路桥工程有限公司 | Bottom die platform integral hanging and dismantling type hanging basket suspension arm and construction method |
| CN114517451A (en) * | 2022-01-27 | 2022-05-20 | 中铁十五局集团有限公司 | Swinging type hanging basket dismantling method |
Citations (5)
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| JP2017020290A (en) * | 2015-07-14 | 2017-01-26 | オリエンタル白石株式会社 | Disassembling method of bridge |
| CN106812069A (en) * | 2017-03-01 | 2017-06-09 | 杭州市交通工程集团有限公司 | The bottom of mountain area buttress Hanging Basket high stops puts device and method |
| CN110158469A (en) * | 2018-04-03 | 2019-08-23 | 中铁十五局集团有限公司 | A kind of bridge hanging basket construction template integrally hangs method down |
| CN209873584U (en) * | 2019-03-25 | 2019-12-31 | 中铁十六局集团第二工程有限公司 | Hang basket template and demolish device |
| CN110820560A (en) * | 2018-08-10 | 2020-02-21 | 山东中宏路桥建设有限公司 | Method for disassembling hoop support of bent cap |
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2020
- 2020-11-19 CN CN202011301353.7A patent/CN112523112A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017020290A (en) * | 2015-07-14 | 2017-01-26 | オリエンタル白石株式会社 | Disassembling method of bridge |
| CN106812069A (en) * | 2017-03-01 | 2017-06-09 | 杭州市交通工程集团有限公司 | The bottom of mountain area buttress Hanging Basket high stops puts device and method |
| CN110158469A (en) * | 2018-04-03 | 2019-08-23 | 中铁十五局集团有限公司 | A kind of bridge hanging basket construction template integrally hangs method down |
| CN110820560A (en) * | 2018-08-10 | 2020-02-21 | 山东中宏路桥建设有限公司 | Method for disassembling hoop support of bent cap |
| CN209873584U (en) * | 2019-03-25 | 2019-12-31 | 中铁十六局集团第二工程有限公司 | Hang basket template and demolish device |
Non-Patent Citations (1)
| Title |
|---|
| 朱海军等: "悬臂现浇箱梁菱形挂篮施工技术", 《公路交通科技（应用技术版）》, 31 December 2013 (2013-12-31), pages 14 - 19 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113265958A (en) * | 2021-04-27 | 2021-08-17 | 河南乾坤路桥工程有限公司 | Bottom die platform integral hanging and dismantling type hanging basket suspension arm and construction method |
| CN114517451A (en) * | 2022-01-27 | 2022-05-20 | 中铁十五局集团有限公司 | Swinging type hanging basket dismantling method |
| CN114517451B (en) * | 2022-01-27 | 2023-04-18 | 中铁十五局集团有限公司 | Swinging type hanging basket dismantling method |
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Application publication date: 20210319 |
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