CN105088968A - Travelling method of cantilever casting arch bridge hanging basket push-type tracked small tank - Google Patents
Travelling method of cantilever casting arch bridge hanging basket push-type tracked small tank Download PDFInfo
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- CN105088968A CN105088968A CN201510535759.4A CN201510535759A CN105088968A CN 105088968 A CN105088968 A CN 105088968A CN 201510535759 A CN201510535759 A CN 201510535759A CN 105088968 A CN105088968 A CN 105088968A
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- hanging basket
- jack
- arch bridge
- tankette
- crawler belt
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Abstract
The invention provides a travelling method of a cantilever casting arch bridge hanging basket push-type tracked small tank. The high-maneuverability push type of a hydraulic jack, a hanging basket and the tracked small tank is adopted, and cantilever casting arch bridge hanging basket construction is achieved. A lower-bearing type inverted triangular hanging basket is selected as the hanging basket of a cantilever casting arch bridge, and the hanging basket overall structure is on the lower side of a concrete structure. The tracked small tank is installed on a hanging leg of the hanging basket. A jack front supporting base is arranged on the hanging leg of the hanging basket and connected with the hydraulic jack. A rear pulley is arranged on a rear fulcrum of a main beam of the hanging basket. The travelling method solves the problem that a hanging basket in a suspended poured arch bridge crawls along an arc-shaped face, the efficiency is low, the maneuverability and the safety of the hanging basket are improved, and the travelling speed is increased. The technology has the advantages that travelling is safe and reliable, the period is short, and operation is convenient, and the hanging basket is suitable for travelling on an arch ring and a bridge floor large in gradient.
Description
Technical field
The present invention relates to a kind of cantilever pouring arch bridges construction, especially a kind of cantilever pouring arch bridge Hanging Basket push mode crawler belt tankette traveling method.
Background technology
At home still under development, only have the positive triangle hanging basket of lower support type, lower support type inverted triangle Hanging Basket two kinds at present to Hanging Basket design form, it seems from construction experience, lower support type Hanging Basket is the construction of applicable arch ring and creeps Hanging Basket suspension pouring arch-type bridge construction technology.Domestic Hanging Basket walking is many to be carried out at bridge floor in easy flights, and the technology of creeping on arch ring arc is ripe not enough, and form is also many to be used for reference by the walking form (towed) of cantilever beam bridge Hanging Basket.According to domestic various Hanging Basket walking statistics, walking form has the traction of artificial Chain block, hydraulic jack wears the traction of Φ 32 fining twisted steel, hydraulic jack wears fining twisted steel traction, hydraulic jack pushing tow etc.
Domestic Hanging Basket walking adopts the walking of towed method, and mode of traction is then completed by fining twisted steel and hydraulic jack.But fining twisted steel fragility is comparatively large, and be not subject to cut, towed is also only carry out on beam face in easy flights, and especially when the such arcuate structure of arch ring is creeped, fining twisted steel is easily out of shape, and stressed effect is bad.And fining twisted steel application risk is large, can not be subject to electric shock, burn impact, in use, must carefully check and take safeguard procedures, unpredictable element be many, and working security is not high.
The walking manner of the direct pushing tow Hanging Basket of hydraulic jack is adopted to realize in cantilever beam bridge, realize Hanging Basket by jack round trip to advance, walking manner is stablized, but because Hanging Basket directly slides in orbit, frictional force is large, generally need coating butter to reduce friction, the Hanging Basket speed of travel is general.And when the forward and backward susceptor design of pushing tow jack, need, according to Specific construction environment, to meet force request and construction requirement.
Summary of the invention
The object of this invention is to provide a kind of cantilever pouring arch bridge Hanging Basket push mode crawler belt tankette traveling method.Adopt the high maneuverability pushing tow form of hydraulic jack+crawler type tankette, " hydraulic continuous jack " adds the power performance of Hanging Basket, reduce the frequent transitions of counter-force block, " crawler belt tankette " changes traditional Hanging Basket Boating type and slides walking for crawler belt rolling walking, reduce the frictional force of walking, successfully solve the technical barrier that Hanging Basket operational efficiency is low.Facts have proved the features such as this kind of walking technology has walking safety, reliable, the cycle is short, easy to operate, be applicable to Hanging Basket and walk on the bridge floor that arch ring uniform slope is larger.
The technical scheme that Bian of the present invention gets:
A kind of cantilever pouring arch bridge Hanging Basket push mode crawler belt tankette traveling method, is characterized in that: the high maneuverability pushing tow form adopting hydraulic jack+Hanging Basket+crawler type tankette, realizes cantilever pouring arch bridge cradle construction.
The Hanging Basket of described cantilever pouring arch bridge selects lower support type inverted triangle Hanging Basket, and Hanging Basket overall structure is on the downside of concrete structure; The extension leg of Hanging Basket installs crawler belt tankette, and before jack, bearing settlement is on the extension leg of Hanging Basket, and is connected with hydraulic jack, arranges rear wheel at Hanging Basket girder rear fulcrum.
Concrete construction method step is as follows:
(1) track moves forward and installs: track front end is buckled on concreting sections cantilever end edge cross-section by block, and track is solid by anchor beam simultaneously, prevents track from rocking;
(2) template is separated: remove whole top template, parallel disengaging side form also ensures lateral distance concrete more than edge 40cm;
(3) transfer Hanging Basket to track, remove anchor system: remove anchor system fining twisted steel and distribution beam, then transfer Hanging Basket by main top hydraulic jack, make bed die depart from concrete, ensure that crawler belt tankette is sat stressed in orbit simultaneously;
(4) rear wheel regulates, and removes thrust mechanism: rear wheel, as in rear fulcrum effect and plancier concrete, regulates matters height to contact with concrete surface during walking; Hydraulic jack is utilized to lock Hanging Basket, dismountable thrust mechanism;
(5) jack rear support locking, jack pushing tow Hanging Basket moves ahead: jack rear support is when Hanging Basket is walked, and lock in orbit with bearing pin, jack is by withstanding rear support, and the front Hanging Basket that pushes away is creeped;
(6) bearing before locking jack, lifting jack rear support is to the next stage: before jack, bearing settlement is on the extension leg of Hanging Basket, and is connected with jack.Bearing is provided with crawler belt tankette before jack; When Hanging Basket completes the walking of a stroke, need locking jack before bearing, utilize jack rear support priming forward;
(7) Hanging Basket walking puts in place: Hanging Basket walking puts in place according to the reverse installation of dismounting order before walking.
Advantage of the present invention:
(1) more traditional Hanging Basket slides in orbit and compares, and crawler belt tankette rolling walking friction is little, and speed is fast.
(2) more traditional fining twisted steel traction is compared, and hydraulic jack thrusting action, avoid fining twisted steel brittle fracture risk, work progress safety is high.
(3) application of continuous jack, decreases the frequent transitions of counter-force block, simplifies operating process, and artificial input is little, substantially increases the stability and speed of being inverted Hanging Basket operation.
(4) operation that Hanging Basket walking process is artificial is few, only needs oil pump control and latch locking, saves fining twisted steel and repeatedly installs, adjusts.
(5) pushing tow crawler belt tankette walking, compares fining twisted steel traction, and force distance is from shortening, and Hanging Basket can not offset left and right, avoids swiping with arch ring, and walking is stable, safety.
(6) to solve in suspension pouring arch-type bridge Hanging Basket arcuately to creep inefficient problem in face, improve the mobility of Hanging Basket, safety, accelerate the speed of travel.
Accompanying drawing explanation
Fig. 1 the present invention forms structural entity elevational schematic view.
Fig. 2 the present invention forms structural entity cross sectional representation.
Fig. 3 the present invention forms structure rear wheel schematic diagram.
Number in the figure illustrates: 1. before track 2. jack rear support 3. hydraulic jack 4. jack, bearing 5. crawler belt tankette 6. rear wheel 7. hangs leg.
Detailed description of the invention
Running gear agent structure of the present invention is primarily of the composition such as bearing, Hanging Basket before and after walking track 1, rear wheel 6, crawler belt tankette 5, hydraulic jack 3, jack.Crawler belt tankette 5 trade name also makes crawler type carry tankette.
The Hanging Basket of cantilever pouring arch bridge selects lower support type inverted triangle Hanging Basket, Hanging Basket overall structure is on the downside of concrete structure, and hang design and installation crawler belt tankette 5 on leg 7, before jack, bearing 4 is arranged on the extension leg 7 of Hanging Basket, and be connected with hydraulic jack 3, at Hanging Basket girder rear fulcrum, rear wheel 6 is set.Utilize effective combination of continuous jack and track, pushing tow crawler belt tankette realizes promoting Hanging Basket walking.
Concrete construction method step is as follows:
(1) track moves forward and installs: track 1 front end is buckled on concreting sections cantilever end edge cross-section by block, and track 1 is solid by anchor beam simultaneously, prevents track from rocking.
(2) template is separated: remove whole top template, parallel disengaging side form also ensures lateral distance concrete more than edge 40cm.
(3) transfer Hanging Basket to track, remove anchor system: remove anchor system fining twisted steel and distribution beam, then transfer Hanging Basket by main top hydraulic jack 3, make bed die depart from concrete, ensure that crawler belt tankette is sat stressed in orbit simultaneously.
(4) rear wheel regulates, and removes thrust mechanism: rear wheel 6, as in rear fulcrum effect and plancier concrete, regulates matters height to contact with concrete surface during walking.Hydraulic jack 3 is utilized to lock Hanging Basket, dismountable thrust mechanism.
(5) jack rear support 2 locks, and jack pushing tow Hanging Basket moves ahead: jack rear support 2 is when Hanging Basket is walked, and lock on path 1 with bearing pin, jack is by withstanding rear support, and the front Hanging Basket that pushes away is creeped.
(6) bearing 4 before locking jack, lifting jack rear support 2 is to the next stage: before jack, bearing 4 is arranged on the extension leg 7 of Hanging Basket, and is connected with jack.Before jack, bearing 4 is provided with crawler belt tankette 5.When Hanging Basket completes the walking of a stroke, need locking jack before bearing 4, utilize jack rear support priming forward.
(7) Hanging Basket walking puts in place: Hanging Basket walking puts in place according to the reverse installation of dismounting order before walking.
Claims (3)
1. a cantilever pouring arch bridge Hanging Basket push mode crawler belt tankette traveling method, is characterized in that: the high maneuverability pushing tow form adopting hydraulic jack+Hanging Basket+crawler type tankette, realizes cantilever pouring arch bridge cradle construction.
2. cantilever pouring arch bridge Hanging Basket push mode crawler belt tankette traveling method according to claim 1, is characterized in that: the Hanging Basket of cantilever pouring arch bridge selects lower support type inverted triangle Hanging Basket, and Hanging Basket overall structure is on the downside of concrete structure; At the extension leg (7) upper installation crawler belt tankette (5) of Hanging Basket, before jack, bearing (4) is arranged on the extension leg (7) of Hanging Basket, and is connected with hydraulic jack (3), arranges rear wheel (6) at Hanging Basket girder rear fulcrum.
3. cantilever pouring arch bridge Hanging Basket push mode crawler belt tankette traveling method according to claim 1, is characterized in that concrete construction method step is as follows:
3.1 tracks move forward and install: track (1) front end is buckled on concreting sections cantilever end edge cross-section by block, and track (1) is solid by anchor beam simultaneously, prevents track from rocking;
3.2 templates are separated: remove whole top template, parallel disengaging side form also ensures lateral distance concrete more than edge 40cm;
3.3 transfer Hanging Basket to track, remove anchor system: remove anchor system fining twisted steel and distribution beam, then transfer Hanging Basket by main top hydraulic jack (3), make bed die depart from concrete, ensure that crawler belt tankette is sat stressed in orbit simultaneously;
2.4 rear wheels regulate, and remove thrust mechanism: rear wheel (6), as in rear fulcrum effect and plancier concrete, regulates matters height to contact with concrete surface during walking; Hydraulic jack (3) is utilized to lock Hanging Basket, dismountable thrust mechanism;
3.5 jack rear support lockings, jack pushing tow Hanging Basket moves ahead: jack rear support (2), when Hanging Basket is walked, is locked on track (1) with bearing pin, and jack is by withstanding rear support, and the front Hanging Basket that pushes away is creeped;
Bearing before 3.6 locking jack, lifting jack rear support (2) is to the next stage: before jack, bearing (4) is arranged on the extension leg (7) of Hanging Basket, and is connected with jack; Before jack, bearing (4) is provided with crawler belt tankette (5); When Hanging Basket completes the walking of a stroke, need locking jack before bearing (4), utilize jack rear support priming forward;
3.7 Hanging Basket walkings put in place: Hanging Basket walking puts in place according to the reverse installation of dismounting order before walking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510535759.4A CN105088968B (en) | 2015-08-28 | 2015-08-28 | Cantilever pouring arch bridge Hanging Basket push mode crawler belt tankette traveling method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510535759.4A CN105088968B (en) | 2015-08-28 | 2015-08-28 | Cantilever pouring arch bridge Hanging Basket push mode crawler belt tankette traveling method |
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| CN105088968A true CN105088968A (en) | 2015-11-25 |
| CN105088968B CN105088968B (en) | 2018-05-01 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988230A (en) * | 2017-05-04 | 2017-07-28 | 贵州桥梁建设集团有限责任公司 | A kind of cradle structure in reinforced concrete arch bridge building course |
| CN108867408A (en) * | 2018-07-19 | 2018-11-23 | 重庆交通大学 | A kind of cantilever pouring method of single box single chamber Arch Bridge Ribs |
| CN111749132A (en) * | 2020-05-28 | 2020-10-09 | 中建隧道建设有限公司 | Construction method for lower chord beam of arched beam combined type continuous rigid frame bridge |
| CN115162211A (en) * | 2022-09-07 | 2022-10-11 | 中铁十七局集团第五工程有限公司 | Cantilever pouring construction method for main arch ring of reinforced concrete arch bridge |
-
2015
- 2015-08-28 CN CN201510535759.4A patent/CN105088968B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988230A (en) * | 2017-05-04 | 2017-07-28 | 贵州桥梁建设集团有限责任公司 | A kind of cradle structure in reinforced concrete arch bridge building course |
| CN108867408A (en) * | 2018-07-19 | 2018-11-23 | 重庆交通大学 | A kind of cantilever pouring method of single box single chamber Arch Bridge Ribs |
| CN111749132A (en) * | 2020-05-28 | 2020-10-09 | 中建隧道建设有限公司 | Construction method for lower chord beam of arched beam combined type continuous rigid frame bridge |
| CN115162211A (en) * | 2022-09-07 | 2022-10-11 | 中铁十七局集团第五工程有限公司 | Cantilever pouring construction method for main arch ring of reinforced concrete arch bridge |
| CN115162211B (en) * | 2022-09-07 | 2022-12-30 | 中铁十七局集团第五工程有限公司 | Cantilever pouring construction method for main arch ring of reinforced concrete arch bridge |
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