CN103911953B - The combination thrustor installed for overhead, bridge and not intermittently pushing method - Google Patents

The combination thrustor installed for overhead, bridge and not intermittently pushing method Download PDF

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Publication number
CN103911953B
CN103911953B CN201410148394.5A CN201410148394A CN103911953B CN 103911953 B CN103911953 B CN 103911953B CN 201410148394 A CN201410148394 A CN 201410148394A CN 103911953 B CN103911953 B CN 103911953B
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pushing tow
unit
bridge
jack
tow unit
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CN103911953A (en
Inventor
陈晓明
王云飞
张宇
潘令誉
俞嫒妍
刘泉
吴君
史维
许勇
杨斌
王正佳
王佳玮
程远程
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Shanghai Mechanized Construction Group Co Ltd
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Shanghai Mechanized Construction Group Co Ltd
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Abstract

The invention provides a kind of for overhead, the combination thrustor that bridge is installed and not intermittently pushing method, described combination thrustor is made up of two pushing tow unit, by the circulation jack-up bridge case beam of two pushing tow unit, alternately promote it to move, pushing tow work is not carried out off and on, improve overhead, the efficiency of bridge installation, described combination thrustor in use simultaneously, horizontal thrust can not be produced to permanent bridge pier, the stationarity that bridge case back pushes away is ensure that while reducing costs, linear bottom safety and bridge case beam, and effectively prevent bridge box-beam structure across the special impact caused sliding construction of lower portion orographic condition.

Description

The combination thrustor installed for overhead, bridge and not intermittently pushing method
Technical field
The present invention relates to overhead, Bridge Construction technical field, particularly relate to a kind of combination thrustor of installing for overhead, bridge and not intermittently pushing method thereof.
Background technology
In current steel case bridge floor Incremental Launching Construction Technology, general employing one group of hoist cylinder and one group of push action cylinder acting in conjunction.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, after utilizing falsework to support bridge case beam, continue retraction hoist cylinder again, make it to depart from bridge case beam, then bounce back push action cylinder, after retraction puts in place, rise hoist cylinder until jack-up bridge case beam, make bridge case beam depart from temporary fixed holder device, before carrying out next stroke, push away work.There is certain shortcoming in this construction method: one is that the playback of push action cylinder by temporary fixed holder device, when load is larger on temporary fixed holder device, need need roll up the steel using amount of falsework because bridge case beam tonnage number is comparatively large; Two be hoist cylinder as needed jack-up bridge case beam, carry out the promotion of next stroke, must experience and bounce back to falsework, and continue retraction, until bridge case beam depart from process, make the bridge case beam support replacement process time longer; Three is have certain spring quantum bottom most bridge case beam, and namely the absolute altitude moment can change, and adopts falsework for controlling linearly having difficulties of whole bridge case beam.
Summary of the invention
The invention provides a kind of combination thrustor of installing for overhead, bridge and not intermittently pushing method thereof, to solve thrustor high cost in prior art and safety factor and the low problem of efficiency of construction.
In order to solve the problems of the technologies described above, the invention provides a kind of combination thrustor installed for overhead, bridge, its permanent bridge pier being 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 used in the vertical direction jack-up bridge case beam, and described horizontal sliding unit is used for promoting described vertical jack in the horizontal direction and moves along thrusting slip axis.
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 is used for promoting described vertical jack in the horizontal direction along moving with the direction of thrusting slip axes normal.
Further, described level correction unit comprises two horizontal correction jack, and described two horizontal correction jack edges and the direction of thrusting slip axes normal are arranged at the relative both sides of described slippage inside casing respectively, 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.
The present invention also provides a kind of above-mentioned for overhead, the pushing method of the combination thrustor that bridge is installed, it comprises: step one: 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, described bridge case beam is driven 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: repeat step one and two, until the sliding of described bridge case back is moved on to position.
Further, described step one is specially: stretch bridge case beam described in cylinder jack-up by the computer vertical jack controlled in described first pushing tow unit, then the vertical very heavy synthlipsis cylinder in described second pushing tow unit is controlled by computer, depart from described bridge case beam, the horizontal sliding cell operation in described first pushing tow unit is controlled again by computer, the vertical jack promoted 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, the vertical jack in described second pushing tow unit is pulled to move along thrusting slip axis rear and get back to original position.
Further, described step 2 is specially: stretch bridge case beam described in cylinder jack-up by the computer vertical jack controlled in described second pushing tow unit, then the vertical very heavy synthlipsis cylinder in described first pushing tow unit is controlled by computer, depart from described bridge case beam, the horizontal sliding cell operation in described second pushing tow unit is controlled again by computer, the vertical jack promoted 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, the vertical jack in described first pushing tow unit is pulled to move along thrusting slip axis rear and get back to original position.
Further, described pushing tow unit also comprises level correction unit, in described step one and two, described two pushing tow unit the vertical jack stand wherein in arbitrary pushing tow unit is overhead or one section of bridge case beam in bridge time, if desired rectify a deviation, the vertical jack edge that then its level correction unit promotes in described corresponding pushing tow unit is in the horizontal direction moved with the direction of thrusting slip axes normal, 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 is not carried out off and on, improve overhead, the efficiency of bridge construction, described combination thrustor in use simultaneously, horizontal thrust can not be produced to permanent bridge pier, the stationarity that bridge case back pushes away is ensure that while reducing costs, linear bottom safety and bridge case beam, and effectively prevent bridge box-beam structure across the special impact caused sliding construction of lower portion 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 installed for overhead, bridge that Fig. 1 provides for the embodiment of the present invention;
The lateral view of pushing tow unit in the combination thrustor installed for overhead, bridge that Fig. 2 provides for the embodiment of the present invention;
The top view of pushing tow unit in the combination thrustor installed 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: horizontal correction jack.
Detailed description of the invention
The combination thrustor installed for overhead, bridge the present invention 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 the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, the aid illustration embodiment of the present invention lucidly.
Core concept of the present invention is, there is provided a kind of for overhead, the combination thrustor that bridge is installed and not intermittently pushing method, it is by two pushing tow unit circulation jack-up bridge case beams, alternately pushing tow moves it, pushing tow work is not carried out off and on, improve overhead, the efficiency of bridge construction, described combination thrustor in use simultaneously, horizontal thrust can not be produced to permanent bridge pier, the stationarity that bridge case back pushes away is ensure that while reducing costs, linear bottom safety and bridge case beam, and effectively prevent bridge box-beam structure across the special impact caused sliding construction of lower portion orographic condition.
Please refer to Fig. 1 to 3, the structure principle chart of the combination thrustor installed for overhead, bridge that Fig. 1 provides for the embodiment of the present invention; The lateral view of pushing tow unit in the combination thrustor installed for overhead, bridge that Fig. 2 provides for the embodiment of the present invention; The top view of pushing tow unit in the combination thrustor installed for overhead, bridge that Fig. 3 provides for the embodiment of the present invention.
As shown in Figures 1 to 3, the embodiment of the present invention provides a kind of for overhead, 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 is used for promoting described vertical jack 11 in the horizontal direction and moves along thrusting slip axis.
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 is used for promoting described vertical jack 11 in the horizontal direction and moves along the direction with thrusting slip axes normal.
Further, described level correction unit comprises two horizontal correction jack 16, described two horizontal correction jack 16 are arranged at the relative both sides of described slippage inside casing 13 respectively along with the direction of thrusting slip axes normal, its one end is all connected with described slide block 15, in the same direction correcting process of bridge case beam, described two horizontal correction jack 16 one stretch a contracting all the time, drive described slide block 15 in described slippage inside casing 13 along moving with the direction of thrusting slip axes normal.
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 judge whether bridge case beam throws off vertical jack 11, without the need to waiting for that bridge case beam is thrown off very large distance and just can be carried out contracting cylinder, shorten the time of telescoping cylinder, and due to the Height Adjustable feature of vertical jack 11, the linear requirements of bridge case beam all can be met when being adjacent to or throwing off bottom bridge case beam, described limit switch also can determined level sliding element and level correction unit in jack and slide block 15 between position, make the displacement of slide block 15 can not exceed certain scope, avoid the generation of accident.
The embodiment of the present invention also provides a kind of pushing method of the above-mentioned combination thrustor installed for overhead, bridge, and it comprises:
Step one: 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: repeat step one and two, until the sliding of described bridge case back is moved on to position.
Further, described step one is specially: stretch bridge case beam described in cylinder jack-up by the computer vertical jack 11 controlled in described first pushing tow unit 1, then the vertical jack 11 contracting cylinder in described second pushing tow unit 1 is controlled by computer, depart from described bridge case beam, the horizontal sliding cell operation in described first pushing tow unit 1 is controlled again by computer, the vertical jack 11 promoted 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, the vertical jack 11 in described second pushing tow unit is pulled to move along thrusting slip axis rear and get back to original position.
Further, described step 2 is specially: stretch bridge case beam described in cylinder jack-up by the computer vertical jack 11 controlled in described second pushing tow unit 1, then the vertical jack 11 contracting cylinder in described first pushing tow unit 1 is controlled by computer, depart from described bridge case beam, the horizontal sliding cell operation in described second pushing tow unit 1 is controlled again by computer, the vertical jack 11 promoted 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, the vertical jack 11 in described first pushing tow unit 1 is pulled to move along thrusting slip axis rear and get back to original position.
Further, in described step one is to three, described two pushing tow unit 1 vertical jack 11 jack-up wherein in arbitrary pushing tow unit 1 is overhead or one section of bridge case beam in bridge time, if desired rectify a deviation, the vertical jack 11 that then its level correction unit promotes in described corresponding pushing tow unit 1 in the horizontal direction moves along the direction with thrusting slip axes normal, 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 to be circulated jack-up bridge case beam by two pushing tow unit 1 wherein, alternately pushing tow moves it, pushing tow work is not carried out off and on, improve overhead, the efficiency of bridge construction, described combination thrustor in use simultaneously, horizontal thrust can not be produced to permanent bridge pier, the stationarity that bridge case back pushes away is ensure that while reducing costs, linear bottom safety and bridge case beam, and effectively prevent bridge box-beam structure across the special impact caused sliding construction of lower portion orographic condition.
It is conceivable that, can work together with project scale, bridge construction and pushing tow load use many cover combinations thrustor in concrete enforcement, the Synchronization Control of many cover combination thrustors is carried out by computer control system, form the thrustor meeting actual demands of engineering, therefore the present invention is also intended to comprise these technical schemes.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if of the present invention these change and modification belongs within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims (6)

1. the combination thrustor installed 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 used in the vertical direction jack-up bridge case beam, and described horizontal sliding unit is used for promoting described vertical jack in the horizontal direction and moves along thrusting slip axis;
Wherein, 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;
Described pushing tow unit also comprises level correction unit, and described level correction unit is used for promoting described vertical jack in the horizontal direction along moving with the direction of thrusting slip axes normal;
Described level correction unit comprises two horizontal correction jack, and described two horizontal correction jack edges and the direction of thrusting slip axes normal are arranged at the relative both sides of described slippage inside casing respectively, and its one end is all connected with described slide block.
2. the combination thrustor installed for overhead, bridge according to claim 1, is characterized in that, described horizontal sliding unit, level correction unit is all provided with limit switch with on vertical jack.
3. a not intermittently pushing method for the combination thrustor installed for overhead, bridge as claimed in claim 1, is characterized in that, comprising:
Step one: 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: repeat step one and two, until the sliding of described bridge case back is moved on to position.
4. according to claim 3 for overhead, the not intermittently pushing method of the combination thrustor that bridge is installed, it is characterized in that, described step one is specially: stretch bridge case beam described in cylinder jack-up by the computer vertical jack controlled in described first pushing tow unit, then the vertical very heavy synthlipsis cylinder in described second pushing tow unit is controlled by computer, depart from described bridge case beam, the horizontal sliding cell operation in described first pushing tow unit is controlled again by computer, the vertical jack promoted 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, the vertical jack in described second pushing tow unit is pulled to move along thrusting slip axis rear and get back to original position.
5. according to claim 3 for overhead, the not intermittently pushing method 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 computer vertical jack controlled in described second pushing tow unit, then the vertical very heavy synthlipsis cylinder in described first pushing tow unit is controlled by computer, depart from described bridge case beam, the horizontal sliding cell operation in described second pushing tow unit is controlled again by computer, the vertical jack promoted 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, the vertical jack in described first pushing tow unit is pulled to move along thrusting slip axis rear and get back to original position.
6. according to any one of claim 3 to 5 for overhead, the not intermittently pushing method 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 one and two, described two pushing tow unit the vertical jack stand wherein in arbitrary pushing tow unit is overhead or one section of bridge case beam in bridge time, if desired rectify a deviation, the vertical jack edge that then its level correction unit promotes in described corresponding pushing tow unit is in the horizontal direction moved with the direction of thrusting slip axes normal, eliminate the deviation between described bridge case beam and thrusting slip axis.
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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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CN104314006B (en) * 2014-10-08 2016-04-06 中铁二十四局集团有限公司 Towards the high-performance slide device of large-tonnage pushing tow engineering
CN106437177B (en) * 2016-10-14 2018-10-02 上海天演建筑物移位工程股份有限公司 A kind of method that timed delivery replaces incremental launching construction
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