CN103911953A - Combined pushing device for mounting of overhead highways and bridges and unintermittent pushing method of combined pushing device - Google Patents
Combined pushing device for mounting of overhead highways and bridges and unintermittent pushing method of combined pushing device Download PDFInfo
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- CN103911953A CN103911953A CN201410148394.5A CN201410148394A CN103911953A CN 103911953 A CN103911953 A CN 103911953A CN 201410148394 A CN201410148394 A CN 201410148394A CN 103911953 A CN103911953 A CN 103911953A
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- jack
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Abstract
The invention provides a combined pushing device for mounting of overhead highways and bridges and an unintermittent pushing method of the combined pushing device. The combined pushing device comprises two pushing units. The pushing units circularly jack bridge box girders and alternately push the same to move to realize unintermittent pushing work, so that mounting and constructing efficiency of the overhead highways and the bridges is improved; the combined pushing device does not apply horizontal thrust to permanent piers during use, so that smoothness and safety of pushing of the bridge box girders and linearity of the bottoms of the bridge box girders are guaranteed while cost is reduced, and influences on sliding construction due to special topographic conditions of under-span portions of bridge box girder structures are effectively avoided.
Description
Technical field
The present invention relates to overhead, Bridge Construction technical field, relate in particular to a kind of combination thrustor of installing for overhead, bridge and pushing method intermittently not thereof.
Background technology
In steel case bridge floor Incremental Launching Construction Technology, generally adopt one group of hoist cylinder and one group of push action cylinder acting in conjunction at present.By hoist cylinder, bridge case back is risen, promote bridge case beam by push action cylinder, after a segment distance, then dropped on the falsework in temporary fixed holder device by hoist cylinder, utilize falsework to support after bridge case beam, continue retraction hoist cylinder again, make it to depart from bridge case beam, push action cylinder then bounces back, after retraction puts in place, rise hoist cylinder until jack-up bridge case beam makes bridge case beam depart from temporary fixed holder device, carry out next stroke before push away work.There is certain shortcoming in this construction method: the one, and because bridge case beam tonnage number is larger, the playback of push action cylinder need, by temporary fixed holder device, in the time that load is larger on temporary fixed holder device, need roll up the steel using amount of falsework; The 2nd, hoist cylinder, as needed jack-up bridge case beam, carries out the promotion of next stroke, must experience and bounce back to falsework, and continue retraction, until the process that bridge case beam departs from makes the bridge case beam support replacement process time longer; The 3rd, certain camber that rises is arranged at most bridge case beam bottom, and the absolute altitude moment can change, and adopts falsework to have difficulties for the linearity of controlling whole bridge case beam.
Summary of the invention
The invention provides a kind of combination thrustor of installing for overhead, bridge and pushing method intermittently not thereof, to solve thrustor high cost and safety factor and the low problem of efficiency of construction in prior art.
In order to solve the problems of the technologies described above, the invention provides a kind of for combination thrustor overhead, that bridge is installed, its permanent bridge pier that is arranged at overhead, bridge is or/and in falsework system, described combination thrustor is made up of two pushing tow unit, described two pushing tow unit form a line along thrusting slip axis, described pushing tow unit comprises vertical jack and horizontal sliding unit, described vertical jack is in the vertical direction jack-up bridge case beam, and described horizontal sliding unit moves along thrusting slip axis for promoting described vertical jack in the horizontal direction.
Further, described horizontal sliding unit comprises slippage inside casing, slide rail, slide block and horizontal pushing tow jack, described slide rail is arranged in described slippage inside casing along thrusting slip axis direction, described slide block and described slide rail are slidably connected, described vertical jack is arranged on described slide block, described horizontal pushing tow jack is arranged in described slippage inside casing, and its one end is connected with described slide block.
Further, described pushing tow unit also comprises level correction unit, and described level correction unit moves along the direction vertical with thrusting slip axis for promoting in the horizontal direction described vertical jack.
Further, described level correction unit comprises two level correction jack, and described two levels correction jack is arranged at respectively the relative both sides of described slippage inside casing along the direction vertical with thrusting slip axis, and its one end is all connected with described slide block.
Further, described horizontal sliding unit, level correction unit are all provided with limit switch with on vertical jack.
It is a kind of above-mentioned for overhead that the present invention also provides, the pushing method of the combination thrustor that bridge is installed, it comprises: step 1: one section of bridge case beam by the vertical jack stand in first pushing tow unit in overhead or bridge, then the vertical jack in second pushing tow unit is fallen and is departed from bridge case beam, drive described bridge case beam to move a segment distance along thrusting slip axis front by the horizontal sliding unit in first pushing tow unit again, drive the vertical jack in second pushing tow unit to get back to original position by the horizontal sliding unit in second pushing tow unit simultaneously, step 2: by bridge case beam described in the vertical jack stand in second pushing tow unit, then the vertical jack in first pushing tow unit is fallen and is departed from bridge case beam, drive described bridge case beam to move a segment distance along thrusting slip axis front by the horizontal sliding unit in second pushing tow unit again, drive the vertical jack in first pushing tow unit to get back to original position by the horizontal sliding unit in first pushing tow unit simultaneously, step 3: repeating step one and two, until the sliding of described bridge case back is moved on to position.
Further, described step 1 is specially: stretch bridge case beam described in cylinder jack-up by the vertical jack in first pushing tow unit described in computer control, then by the vertical very heavy synthlipsis cylinder in second pushing tow unit described in computer control, depart from described bridge case beam, again by the horizontal sliding cell operation in first pushing tow unit described in computer control, the vertical jack promoting in described first pushing tow unit drives described bridge case beam to move a segment distance along thrusting slip axis front, control the horizontal sliding cell operation in described second pushing tow unit simultaneously, pull the vertical jack in described second pushing tow unit to move and get back to original position along thrusting slip axis rear.
Further, described step 2 is specially: stretch bridge case beam described in cylinder jack-up by the vertical jack in second pushing tow unit described in computer control, then by the vertical very heavy synthlipsis cylinder in first pushing tow unit described in computer control, depart from described bridge case beam, again by the horizontal sliding cell operation in second pushing tow unit described in computer control, the vertical jack promoting in described second pushing tow unit drives described bridge case beam to move a segment distance along thrusting slip axis front, control the horizontal sliding cell operation in described first pushing tow unit simultaneously, pull the vertical jack in described first pushing tow unit to move and get back to original position along thrusting slip axis rear.
Further, described pushing tow unit also comprises level correction unit, in described step 1 and two, in described two pushing tow unit or wherein when one section of bridge case beam in the overhead or bridge of the vertical jack stand in arbitrary pushing tow unit, if desired correction, the vertical jack that its level correction unit promotes in described corresponding pushing tow unit in the horizontal direction moves along the direction vertical with thrusting slip axis, eliminates the deviation between described bridge case beam and thrusting slip axis.
Compared with prior art, the present invention has following beneficial effect:
Provided by the invention for overhead, the combination thrustor that bridge is installed and not intermittently pushing method by two pushing tow unit circulation jack-up bridge case beams, alternately pushing tow moves it, pushing tow work can not carried out off and on, improve overhead, the efficiency of bridge construction, described combination thrustor in use simultaneously, can not produce horizontal thrust to permanent bridge pier, in reducing costs, guarantee the stationarity that bridge case back pushes away, the linearity of safety and bridge case beam bottom, and effectively avoid bridge box-beam structure across the special impact that sliding construction is caused of lower position orographic condition.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
The structure principle chart of the combination thrustor of installing for overhead, bridge that Fig. 1 provides for the embodiment of the present invention;
The lateral view of the combination thrustor pushing tow unit of installing for overhead, bridge that Fig. 2 provides for the embodiment of the present invention;
The top view of the combination thrustor pushing tow unit of installing for overhead, bridge that Fig. 3 provides for the embodiment of the present invention.
In Fig. 1 to 3,
1: pushing tow unit; 11: vertical jack; 12: horizontal pushing tow jack; 13: slippage inside casing; 14: slide rail; 15: slide block; 16: level correction jack.
The specific embodiment
The combination thrustor of installing for overhead, bridge the present invention being proposed below in conjunction with the drawings and specific embodiments and not intermittently pushing method be described in further detail.According to the following describes and claims, advantages and features of the invention will be clearer.It should be noted that, accompanying drawing all adopts very the form of simplifying and all uses non-ratio accurately, only in order to convenient, the object of the aid illustration embodiment of the present invention lucidly.
Core concept of the present invention is, provide a kind of for overhead, the combination thrustor that bridge is installed and not pushing method intermittently, it is by two pushing tow unit circulation jack-up bridge case beams, alternately pushing tow moves it, pushing tow work can not carried out off and on, improve overhead, the efficiency of bridge construction, described combination thrustor in use simultaneously, can not produce horizontal thrust to permanent bridge pier, in reducing costs, guarantee the stationarity that bridge case back pushes away, the linearity of safety and bridge case beam bottom, and effectively avoid bridge box-beam structure across the special impact that sliding construction is caused of lower position orographic condition.
Please refer to Fig. 1 to 3, the structure principle chart of the combination thrustor of installing for overhead, bridge that Fig. 1 provides for the embodiment of the present invention; The lateral view of the combination thrustor pushing tow unit of installing for overhead, bridge that Fig. 2 provides for the embodiment of the present invention; The top view of the combination thrustor pushing tow unit of installing for overhead, bridge that Fig. 3 provides for the embodiment of the present invention.
As shown in Figures 1 to 3, it is a kind of for overhead that the embodiment of the present invention provides, the combination thrustor that bridge is installed, it is arranged at overhead, the permanent bridge pier of bridge is or/and in falsework system, described combination thrustor is made up of two pushing tow unit, described two pushing tow unit 1 form a line along thrusting slip axis, described pushing tow unit 1 comprises vertical jack 11 and horizontal sliding unit, described vertical jack 11 is for bridge case beam described in the vertical direction jack-up, described horizontal sliding unit moves along thrusting slip axis for promoting described vertical jack 11 in the horizontal direction.
Further, described horizontal sliding unit comprises slippage inside casing 13, slide rail 14, slide block 15 and horizontal pushing tow jack 12, described slide rail 14 is arranged in described slippage inside casing 13 along thrusting slip axis direction, described slide block 15 is slidably connected with described slide rail 14, described slide rail 14 adopts the minimum material of friction factor to make, with the frictional force of the base plate of balance bridge case beam base plate and slippage inside casing 13, described vertical jack 11 is arranged on described slide block 15, described horizontal pushing tow jack 12 is arranged in described slippage inside casing 13, its one end is connected with described slide block 15, described horizontal pushing tow jack 12 drives described slide block 15 to move along thrusting slip axis direction in described slippage inside casing 13 by telescoping cylinder.
Further, described pushing tow unit 1 also comprises level correction unit, and described level correction unit moves along the direction vertical with thrusting slip axis for promoting in the horizontal direction described vertical jack 11.
Further, described level correction unit comprises two level correction jack 16, described two levels correction jack 16 is arranged at respectively the relative both sides of described slippage inside casing 13 along the direction vertical with thrusting slip axis, its one end is all connected with described slide block 15, in the same direction correcting process of bridge case beam, described two levels correction jack 16 one is stretched a contracting all the time, drives described slide block 15 to move along the direction vertical with thrusting slip axis in described slippage inside casing 13.
Further, described horizontal sliding unit, level correction unit is all provided with limit switch with on vertical jack 11, described limit switch can be very sensitive the bridge case beam that judges whether throw off vertical jack 11, just can contracting cylinder without waiting for that bridge case beam is thrown off very large distance, shorten the time of telescoping cylinder, and due to the Height Adjustable feature of vertical jack 11, be adjacent to or throw off bridge case beam when bottom and all can meet that the linearity of bridge case beam requires, described limit switch also can determined level sliding element and level correction unit in jack and the position between slide block 15, make the displacement of slide block 15 can not exceed certain scope, avoid the generation of accident.
It is a kind of above-mentioned for pushing method overhead, combination thrustor that bridge is installed that the embodiment of the present invention also provides, and it comprises:
Step 1: one section of bridge case beam by vertical jack 11 jack-up in first pushing tow unit 1 in overhead or bridge, then the vertical jack 11 in second pushing tow unit 1 is fallen and is departed from bridge case beam, drive described bridge case beam to move a segment distance along thrusting slip axis front by the horizontal sliding unit in first pushing tow unit 1 again, drive the vertical jack 11 in second pushing tow unit to get back to original position by the horizontal sliding unit in second pushing tow unit 1 simultaneously;
Step 2: by bridge case beam described in vertical jack 11 jack-up in second pushing tow unit 1, then the vertical jack 11 in first pushing tow unit 1 is fallen and is departed from bridge case beam, drive described bridge case beam to move a segment distance along thrusting slip axis front by the horizontal sliding unit in second pushing tow unit 1 again, drive the vertical jack 11 in first pushing tow unit to get back to original position by the horizontal sliding unit in first pushing tow unit 1 simultaneously;
Step 3: repeating step one and two, until the sliding of described bridge case back is moved on to position.
Further, described step 1 is specially: stretch bridge case beam described in cylinder jack-up by the vertical jack 11 in first pushing tow unit 1 described in computer control, then by the vertical jack 11 contracting cylinders in second pushing tow unit 1 described in computer control, depart from described bridge case beam, again by the horizontal sliding cell operation in first pushing tow unit 1 described in computer control, the vertical jack 11 promoting in described first pushing tow unit 1 drives described bridge case beam to move a segment distance along thrusting slip axis front, control the horizontal sliding cell operation in described second pushing tow unit 1 simultaneously, pull the vertical jack 11 in described second pushing tow unit to move and get back to original position along thrusting slip axis rear.
Further, described step 2 is specially: stretch bridge case beam described in cylinder jack-up by the vertical jack 11 in second pushing tow unit 1 described in computer control, then by the vertical jack 11 contracting cylinders in first pushing tow unit 1 described in computer control, depart from described bridge case beam, again by the horizontal sliding cell operation in second pushing tow unit 1 described in computer control, the vertical jack 11 promoting in described second pushing tow unit 1 drives described bridge case beam to move a segment distance along thrusting slip axis front, control the horizontal sliding cell operation in described first pushing tow unit 1 simultaneously, pull the vertical jack 11 in described first pushing tow unit 1 to move and get back to original position along thrusting slip axis rear.
Further, in described step 1 to three, in described two pushing tow unit 1 or wherein when one section of bridge case beam in the overhead or bridge of vertical jack 11 jack-up in arbitrary pushing tow unit 1, if desired correction, the vertical jack 11 that its level correction unit promotes in described corresponding pushing tow unit 1 in the horizontal direction moves along the direction vertical with thrusting slip axis, eliminates the deviation between described bridge case beam and thrusting slip axis.
In sum, the embodiment of the present invention provide for overhead, the combination thrustor that bridge is installed and not intermittently pushing method by two pushing tow unit, 1 circulation jack-up bridge case beam wherein, alternately pushing tow moves it, pushing tow work can not carried out off and on, improve overhead, the efficiency of bridge construction, described combination thrustor in use simultaneously, can not produce horizontal thrust to permanent bridge pier, in reducing costs, guarantee the stationarity that bridge case back pushes away, the linearity of safety and bridge case beam bottom, and effectively avoid bridge box-beam structure across the special impact that sliding construction is caused of lower position orographic condition.
What can expect is, in concrete enforcement, can together with project scale, bridge construction and the many cover combinations of pushing tow load use thrustors, work, carried out the Synchronization Control of many cover combination thrustors by computer control system, formation meets the thrustor of actual demands of engineering, therefore the present invention is also intended to comprise these technical schemes interior.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are changed and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (9)
1. a combination thrustor of installing for overhead, bridge, it is characterized in that, be arranged at the permanent bridge pier of overhead, bridge or/and in falsework system, described combination thrustor is made up of two pushing tow unit, described two pushing tow unit form a line along thrusting slip axis, described pushing tow unit comprises vertical jack and horizontal sliding unit, described vertical jack is in the vertical direction jack-up bridge case beam, and described horizontal sliding unit moves along thrusting slip axis for promoting described vertical jack in the horizontal direction.
2. according to claim 1 for combination thrustor overhead, that bridge is installed, it is characterized in that, described horizontal sliding unit comprises slippage inside casing, slide rail, slide block and horizontal pushing tow jack, described slide rail is arranged in described slippage inside casing along thrusting slip axis direction, described slide block and described slide rail are slidably connected, described vertical jack is arranged on described slide block, and described horizontal pushing tow jack is arranged in described slippage inside casing, and its one end is connected with described slide block.
3. according to claim 1 for combination thrustor overhead, that bridge is installed, it is characterized in that, described pushing tow unit also comprises level correction unit, and described level correction unit moves along the direction vertical with thrusting slip axis for promoting in the horizontal direction described vertical jack.
4. according to claim 3 for combination thrustor overhead, that bridge is installed, it is characterized in that, described level correction unit comprises two level correction jack, described two levels correction jack is arranged at respectively the relative both sides of described slippage inside casing along the direction vertical with thrusting slip axis, its one end is all connected with described slide block.
5. the combination thrustor of installing for overhead, bridge according to claim 3, is characterized in that, described horizontal sliding unit, level correction unit are all provided with limit switch with on vertical jack.
6. a not pushing method intermittently for the combination thrustor of installing for overhead, bridge as claimed in claim 1, is characterized in that, comprising:
Step 1: one section of bridge case beam by the vertical jack stand in first pushing tow unit in overhead or bridge, then the vertical jack in second pushing tow unit is fallen and is departed from bridge case beam, drive described bridge case beam to move a segment distance along thrusting slip axis front by the horizontal sliding unit in first pushing tow unit again, drive the vertical jack in second pushing tow unit to get back to original position by the horizontal sliding unit in second pushing tow unit simultaneously;
Step 2: by bridge case beam described in the vertical jack stand in second pushing tow unit, then the vertical jack in first pushing tow unit is fallen and is departed from bridge case beam, drive described bridge case beam to move a segment distance along thrusting slip axis front by the horizontal sliding unit in second pushing tow unit again, drive the vertical jack in first pushing tow unit to get back to original position by the horizontal sliding unit in first pushing tow unit simultaneously;
Step 3: repeating step one and two, until the sliding of described bridge case back is moved on to position.
7. according to claim 6 for overhead, the not pushing method intermittently of the combination thrustor that bridge is installed, it is characterized in that, described step 1 is specially: stretch bridge case beam described in cylinder jack-up by the vertical jack in first pushing tow unit described in computer control, then by the vertical very heavy synthlipsis cylinder in second pushing tow unit described in computer control, depart from described bridge case beam, again by the horizontal sliding cell operation in first pushing tow unit described in computer control, the vertical jack promoting in described first pushing tow unit drives described bridge case beam to move a segment distance along thrusting slip axis front, control the horizontal sliding cell operation in described second pushing tow unit simultaneously, pull the vertical jack in described second pushing tow unit to move and get back to original position along thrusting slip axis rear.
8. according to claim 6 for overhead, the not pushing method intermittently of the combination thrustor that bridge is installed, it is characterized in that, described step 2 is specially: stretch bridge case beam described in cylinder jack-up by the vertical jack in second pushing tow unit described in computer control, then by the vertical very heavy synthlipsis cylinder in first pushing tow unit described in computer control, depart from described bridge case beam, again by the horizontal sliding cell operation in second pushing tow unit described in computer control, the vertical jack promoting in described second pushing tow unit drives described bridge case beam to move a segment distance along thrusting slip axis front, control the horizontal sliding cell operation in described first pushing tow unit simultaneously, pull the vertical jack in described first pushing tow unit to move and get back to original position along thrusting slip axis rear.
According to described in claim 6 to 8 any one for overhead, the not pushing method intermittently of the combination thrustor that bridge is installed, it is characterized in that, described pushing tow unit also comprises level correction unit, in described step 1 and two, in described two pushing tow unit or wherein when one section of bridge case beam in the overhead or bridge of the vertical jack stand in arbitrary pushing tow unit, if desired correction, the vertical jack that its level correction unit promotes in described corresponding pushing tow unit in the horizontal direction moves along the direction vertical with thrusting slip axis, eliminate the deviation between described bridge case beam and thrusting slip axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410148394.5A CN103911953B (en) | 2014-04-14 | 2014-04-14 | The combination thrustor installed for overhead, bridge and not intermittently pushing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410148394.5A CN103911953B (en) | 2014-04-14 | 2014-04-14 | The combination thrustor installed for overhead, bridge and not intermittently pushing method |
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| CN103911953A true CN103911953A (en) | 2014-07-09 |
| CN103911953B CN103911953B (en) | 2015-10-28 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314006A (en) * | 2014-10-08 | 2015-01-28 | 中铁二十四局集团有限公司 | High-performance sliding device oriented to large-tonnage incremental launching engineering |
| CN106437177A (en) * | 2016-10-14 | 2017-02-22 | 上海天演建筑物移位工程股份有限公司 | Synchronous and alternating pushing construction method |
| CN109267495A (en) * | 2018-11-22 | 2019-01-25 | 上海洪铺钢结构工程有限公司 | A kind of jacking device |
| CN109629461A (en) * | 2019-01-14 | 2019-04-16 | 中交公局第六工程有限公司 | A method of it does not break off a friendship and carries out cast-in-situ box girder reset and bearing replacement |
| CN110468739A (en) * | 2019-08-19 | 2019-11-19 | 中铁武汉勘察设计研究院有限公司 | A kind of bridge incremental launching rotor system and method |
| CN113774812A (en) * | 2021-08-21 | 2021-12-10 | 华东交通大学 | Graded pushing trolley system for bridge continuous pushing operation and construction method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522096A (en) * | 2016-10-09 | 2017-03-22 | 张小东 | Curved incremental launching construction technology for 48m-long-span railway simply-supported box girders and high piers |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314006A (en) * | 2014-10-08 | 2015-01-28 | 中铁二十四局集团有限公司 | High-performance sliding device oriented to large-tonnage incremental launching engineering |
| CN106437177A (en) * | 2016-10-14 | 2017-02-22 | 上海天演建筑物移位工程股份有限公司 | Synchronous and alternating pushing construction method |
| CN109267495A (en) * | 2018-11-22 | 2019-01-25 | 上海洪铺钢结构工程有限公司 | A kind of jacking device |
| CN109629461A (en) * | 2019-01-14 | 2019-04-16 | 中交公局第六工程有限公司 | A method of it does not break off a friendship and carries out cast-in-situ box girder reset and bearing replacement |
| CN110468739A (en) * | 2019-08-19 | 2019-11-19 | 中铁武汉勘察设计研究院有限公司 | A kind of bridge incremental launching rotor system and method |
| CN113774812A (en) * | 2021-08-21 | 2021-12-10 | 华东交通大学 | Graded pushing trolley system for bridge continuous pushing operation and construction method |
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| CN103911953B (en) | 2015-10-28 |
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