CN205934735U - A operation platform for stretch -draw of cantilever bent cap - Google Patents

A operation platform for stretch -draw of cantilever bent cap Download PDF

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Publication number
CN205934735U
CN205934735U CN201620887014.4U CN201620887014U CN205934735U CN 205934735 U CN205934735 U CN 205934735U CN 201620887014 U CN201620887014 U CN 201620887014U CN 205934735 U CN205934735 U CN 205934735U
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China
Prior art keywords
cape
bent cap
frame
cantilever
type
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Active
Application number
CN201620887014.4U
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Chinese (zh)
Inventor
丁永军
韩振江
王吉兵
李建波
姜伟
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China Construction Sixth Engineering Division Co Ltd
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China Construction Sixth Engineering Division Co Ltd
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Priority to CN201620887014.4U priority Critical patent/CN205934735U/en
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Abstract

The utility model discloses an operation platform for stretch -draw of cantilever bent cap, including hoist mechanism, suspended structure and frame -type cape, the frame -type cape sets up the below of cantilever bent cap cantilever portion, the frame -type cape passes through suspended structure connects existing structural, the frame -type cape with hoist mechanism connects, hoist mechanism installs existing structural. The utility model discloses simple structure, low in cost, convenient operation, the efficiency of construction is high, can reduce large -scale mechanical taking, practices thrift construction cost. The utility model discloses a spandrel girder is hung and is established on existing bent cap, has overcome the bad difficulty of bent cap cantilever troops under one's command side geological conditions, and carrying capacity is reliable, and is safe secure.

Description

A kind of operating platform for cantilever bent cap tensioning
Technical field
The utility model is related to bridge construction technical field and in particular to a kind of operation for cantilever bent cap tensioning is put down Platform.
Background technology
In Urban Bridge Construction, surrounding environment is very big on the impact of bridge top and the bottom structure model selection, should have enough under bridge Curb-to-curb width, meet bridge structure and surrounding environment coordination spatially again, thus meeting bridge in urban landscape On demand.Can not being interrupted of urban transportation also governs the duration, and Urban Bridge superstructure typically adopts precast assembly, bottom Structure needs to meet driving width and the penetrating visual field, and therefore, great cantilever Prestressed Slab Beams become the preferred version of engineering design.
In order to improve the stress state of Prestressed Slab Beams in work progress, the prestressed strand in bent cap needs to open in batches Draw:Complete when bent cap pours, its intensity reaches 90%, and during no less than 7 days, first steel bundle of tensioning;Top precast beam is whole Post-stretching second batch steel bundle in place.After the completion for the treatment of the whole tensioning of bent cap prestressed strand, carry out structure system on Simply supported non-uniform and turn Change and the second stage of the project such as deck paving.
Typically directly tensioning is carried out as operating platform using capping construction support during first prestressed strand tensioning, and work as During tensioning second batch prestressed strand, often in order to save construction cost, now capping construction support is removed, this gives the Two batches of prestressed strand tensioning bring the problem of no tension operation platform.In the construction in past, generally using sizing cat ladder Or set up scaffold tension operation platform to be provided.Once all there is high material consumption in both approaches, and run into It is the hazardous areas such as river, zanjon, weak soil mud under bridge, needs ground is processed, construction cost is high and exists hidden safely Suffer from.
Content of the invention
The utility model provide for solving technical problem present in known technology a kind of for cantilever bent cap tensioning Operating platform, this operating platform is safe and reliable, and material consumption is few, low cost.
The utility model is adopted the technical scheme that by solving technical problem present in known technology:One kind is used for hanging The operating platform of arm bent cap tensioning, including hoisting mechanism, suspended structure and frame-type cape, described frame-type cape is arranged on institute State the lower section of cantilever bent cap cantilever portion, described frame-type cape is connected on existing structure by described suspended structure, described frame Posture cape is connected with described hoisting mechanism, and described hoisting mechanism is arranged on existing structure.
Described frame-type cape is provided with main cape and secondary cape, and described pair cape is connected on the outside of described main cape Side.
Described hoisting mechanism includes base, is provided with hoist engine on described base, described hoist engine pass through steel wire rope I with Described frame-type cape connects.
Described base is provided with road wheel.
It is provided with cat ladder in described main cape near the side of described pair cape.
Described suspended structure includes being fixed in four suspension rods of both sides before and after both sides and the inner before and after in the middle part of described main cape And it is fixed in the steel wire rope II of both sides before and after described pair cape, described steel wire rope II is connected with Bridge guardrail reserved steel bar, institute State suspension rod to be connected with cantilever bent cap by spandrel girder.
It is connected with two diagonal braces between described main cape and described pair cape.
The utility model has the advantages and positive effects that:Structure is simple, cheap, easy to operate, efficiency of construction Height, can reduce the occupancy to big machinery, save construction cost.The utility model is hung on existing bent cap by spandrel girder On, overcome the bad difficulty of geological conditions below bent cap cantilever portion, ability to bear is reliable, safety is secure.
Brief description
Fig. 1 is front view of the present utility model;
Fig. 2 is the structural representation of hoisting mechanism of the present utility model;
Fig. 3 is the structural representation of frame-type cape of the present utility model.
In figure:1st, base;2nd, road wheel;3rd, hoist engine;4th, steel wire rope I;5th, main cape;6th, secondary cape;7th, diagonal brace;8th, climb Ladder;9th, suspension rod;10th, nut;11st, spandrel girder;12 steel wire rope II;13rd, guardrail reserved steel bar;14th, protection network;15th, cantilever bent cap; 16th, precast beam;17th, wet seam.
Specific embodiment
For content of the invention of the present utility model, feature and effect can be further appreciated that, hereby enumerate following examples, and coordinate Accompanying drawing describes in detail as follows:
Refer to Fig. 1~Fig. 3, a kind of operating platform for cantilever bent cap tensioning, including hoisting mechanism, suspended structure and Frame-type cape, described frame-type cape is arranged on the lower section of described cantilever bent cap 15 cantilever portion, and described frame-type cape passes through Described suspended structure is connected on existing structure, and described frame-type cape is connected with described hoisting mechanism, described hoisting mechanism peace It is contained on existing structure.
Concrete structure is as follows:Hoisting mechanism includes being arranged on two sets of both sides before and after cantilever bent cap 15, two sets of hoisting mechanisms Supported by precast beam 16.Described lift structure includes base 1, and the bottom of described base 1 is connected with four road wheels 2, left and right Described road wheel 2 be respectively supported on the adjacent two panels precast beam 16 in left and right, described base 1 is fixed with hoist engine 3, described Hoist engine 3 is connected with frame-type cape by the steel wire rope I 4 through wet seam 17.
In the present embodiment, described frame-type cape, in order to meet the demand at beam bottom and beam-ends tensioning, is provided with main cape 5 He Secondary cape 6, described pair cape 6 is connected to above the outside of main cape 5, in order to ensure the stability of secondary cape, hangs in described master It is also associated with two diagonal braces 7 between platform 5 and described pair cape 6.In order to operator is in described main cape 5 and described pair cape 6 Between current convenient, be provided with cat ladder 8 in described main cape 5 near the side of pair cape 6.
Described suspended structure includes being fixed in four suspension rods of both sides before and after both sides and the inner before and after described main cape 5 middle part 9 and the steel wire rope II 12, described steel wire rope II 12 and the Bridge guardrail reserved steel bar 13 that are fixed in both sides before and after described pair cape 6 Connect, described suspension rod 9 passes through spandrel girder 11 and nut 10 is connected with cantilever bent cap 15.Protection network 14 is hung on described frame-type and hangs The outside of platform.
Although being described to preferred embodiment of the present utility model above in conjunction with accompanying drawing, the utility model is not It is confined to above-mentioned specific embodiment, above-mentioned specific embodiment is only schematically, is not restricted, ability The those of ordinary skill in domain under enlightenment of the present utility model, without departing from the utility model objective and claimed Under ambit, a lot of forms can also be made, these belong within protection domain of the present utility model.

Claims (7)

1. a kind of operating platform for cantilever bent cap tensioning is it is characterised in that include hoisting mechanism, suspended structure and frame-type Cape, described frame-type cape is arranged on the lower section of described cantilever bent cap cantilever portion, and described frame-type cape is by described suspension Structure is connected on existing structure, and described frame-type cape is connected with described hoisting mechanism, and described hoisting mechanism is arranged on existing In structure.
2. the operating platform for cantilever bent cap tensioning according to claim 1 is it is characterised in that described frame-type cape It is provided with main cape and secondary cape, described pair cape is connected to above the outside of described main cape.
3. the operating platform for cantilever bent cap tensioning according to claim 1 is it is characterised in that described hoisting mechanism bag Include base, described base is provided with hoist engine, described hoist engine is connected with described frame-type cape by steel wire rope I.
4. the operating platform for cantilever bent cap tensioning according to claim 3 is it is characterised in that described base is provided with row Walk wheel.
5. the operating platform for cantilever bent cap tensioning according to claim 2 is it is characterised in that lean in described main cape The side of closely described pair cape is provided with cat ladder.
6. the operating platform for cantilever bent cap tensioning according to claim 2 is it is characterised in that described suspended structure bag Before including before and after both sides and the inner before and after being fixed in the middle part of described main cape four suspension rods of both sides and being fixed in described pair cape The steel wire rope II of both sides afterwards, described steel wire rope II is connected with Bridge guardrail reserved steel bar, and described suspension rod passes through spandrel girder and cantilever Bent cap connects.
7. the operating platform for cantilever bent cap tensioning according to claim 2 it is characterised in that in described main cape and It is connected with two diagonal braces between described pair cape.
CN201620887014.4U 2016-08-14 2016-08-14 A operation platform for stretch -draw of cantilever bent cap Active CN205934735U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620887014.4U CN205934735U (en) 2016-08-14 2016-08-14 A operation platform for stretch -draw of cantilever bent cap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620887014.4U CN205934735U (en) 2016-08-14 2016-08-14 A operation platform for stretch -draw of cantilever bent cap

Publications (1)

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CN205934735U true CN205934735U (en) 2017-02-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107604829A (en) * 2017-09-18 2018-01-19 中国十七冶集团有限公司 A kind of pier cap beam tensioning assembled tensioning job platform and preparation method thereof
CN110820564A (en) * 2019-10-15 2020-02-21 同济大学 Liftable and openable bent cap construction overhaul multipurpose platform

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107604829A (en) * 2017-09-18 2018-01-19 中国十七冶集团有限公司 A kind of pier cap beam tensioning assembled tensioning job platform and preparation method thereof
CN107604829B (en) * 2017-09-18 2019-10-18 中国十七冶集团有限公司 A kind of pier cap beam tensioning assembled tensioning job platform and preparation method thereof
CN110820564A (en) * 2019-10-15 2020-02-21 同济大学 Liftable and openable bent cap construction overhaul multipurpose platform

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