CN202509398U - Base support frame of simulation steel truss girder for assisting erection of main tower zone steel truss girder of cable stayed bridge - Google Patents
Base support frame of simulation steel truss girder for assisting erection of main tower zone steel truss girder of cable stayed bridge Download PDFInfo
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- CN202509398U CN202509398U CN2012200466775U CN201220046677U CN202509398U CN 202509398 U CN202509398 U CN 202509398U CN 2012200466775 U CN2012200466775 U CN 2012200466775U CN 201220046677 U CN201220046677 U CN 201220046677U CN 202509398 U CN202509398 U CN 202509398U
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- steel truss
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- truss girder
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Abstract
The utility model discloses a base support frame of a simulation steel truss girder for assisting the erection of a main tower zone steel truss girder of a cable stayed bridge. The base support frame consists of an upright post pad girder, an upright post, a vertical connecting system, a plane connecting system, a front and a back transverse distribution girder, a bottom anchoring device and a distribution girder anchoring device. The base support frame can assist a fully rotary girder erecting crane to erect the main tower zone steel truss girder, and the problem that the girder erecting crane is assembled in advance during high water level in the flood period can be solved, so the erection of the main tower zone steel truss girder and the assembly of the girder erecting crane are not limited by the water level, in addition, the structure is simple and novel, the stress is specific, the use time of a large-scale floating crane can be greatly shortened, the equipment investment is reduced, and better economic benefits and social benefits are realized.
Description
Technical field
The utility model relates to the bridge construction equipment, especially relates to the base support that a kind of cable stayed bridge king-tower district steel truss girder sets up the simulation steel truss girder of auxiliary usefulness.
Background technology
Along with China's economy and fast development of society, the infrastructure construction scale constantly increases, and bridge construction makes rapid progress, and the large span steel truss girder cable-stayed bridge of crossing over rivers,lakes and seas has welcome upsurge in construction.
Build the large span stayed-cable bridge of crossing over rivers,lakes and seas, receive the influence of hydrogeological conditions etc., difficulty of construction is very big.Utilize prior art to set up to cross over the large span stayed-cable bridge of rivers,lakes and seas, need have high input, risk is high.The process that steel truss girder cable-stayed bridge is built is generally following: king-tower district steel truss girder is installed earlier, and the end face of steel truss girder is installed girder erection crane in the king-tower district again, is the center then with the king-tower, to bilateral symmetry cantilever erection steel truss girder.Wherein, most critical is the installation of king-tower district steel truss girder and girder erection crane.
The scheme of architecture of the cable stayed bridge king-tower district steel truss girder on the great rivers normally adopts the auxiliary crane barge of thrusting slip method to set up: utilize large-scale floating crane on pier-side bracket, to set up first internode steel truss girder, through the pushing tow mode with internode of first internode steel truss girder slippage forward; Utilize crane barge to set up the second internode steel truss girder, with two internode steel truss girders internode of thrusting slip forward; So back and forth, all set up completion until king-tower district steel truss girder (general 3～4 internodes); Then, two bridge floor girder erection cranes of the end face of steel truss girder symmetry assembly unit in the king-tower district.
There is following shortcoming in this scheme of architecture: 1, king-tower district steel truss girder sets up especially that the assembly unit of girder erection crane receives the restriction that crane barge hangs height and water level.For example in upper and middle reaches, the Changjiang river areas, the withered phase range of stage of flood reaches about 15 meters: between the highstand in flood season, crane barge hangs and highly can satisfy generally that steel truss girder sets up and the needs of girder erection crane assembly unit; But between withered phase lowstand period, crane barge hangs height and is difficult to satisfy steel truss girder and sets up the especially needs of girder erection crane assembly unit; And satisfying the more large-scale crane barge that hangs high needs, resource seldom receives the restriction of several the Yangtze Bridge navigational clearances in the Nanjing Yangtze River Bridge and the upper reaches thereof on the other hand on the one hand, can't get into area, upper and middle reaches, the Changjiang river; 2, steel truss girder needs vertical shift repeatedly could arrive design attitude, and the vertical shift scope is big; The steel truss girder of a plurality of sections need carry out vertical shift together, and much more every sections will increase the hundreds of ton even go up the load of kiloton; The system of vertical shift structure is huge, stress point is many, load is big and be prone to inhomogeneous stressed situation, vertical shift process middle slideway beam stressed complicated and changeable, and big load, there is great security risk in slippage on a large scale; 3, the cycle of setting up of king-tower district steel truss girder long, large-scale floating crane is long service time, expense is high.
Summary of the invention
The purpose of the utility model provides the base support that a kind of cable stayed bridge king-tower district steel truss girder sets up the simulation steel truss girder of auxiliary usefulness; This base support can solve the problem that shifts to an earlier date the assembly unit girder erection crane in flood season during high water level; Thereby make setting up of king-tower district steel truss girder not receive water level limitation, and this base support is simple in structure, novel, stressed clear and definite.
A kind of cable stayed bridge king-tower district steel truss girder sets up the base support of the simulation steel truss girder of auxiliary usefulness; Characteristic is: be made up of column, column bearing beam, vertical system, plane connection system, front and back transverse distribution beam, bottom anchor device and the distribution beam anchor device of connecting, wherein: be fixed on the slipway beam on frame support bracket top after the column bearing beam is passed by the bottom anchor device in the bottom of four vertical columns of arranging; The layout of four root posts is a rectangle, and the horizontal spacing of four root posts is wide identical with the purlin of steel truss girder, and the longitudinal pitch of four root posts equates with the panel length of steel truss girder; Between four root posts, be provided with the vertical connection system and the plane that are used to form rock-steady structure and connect system; The distribution beam of two direction across bridge is used to support girder erection crane before and after the end face of column is provided with, and distribution beam is provided with the connection otic placode that is used for fixing girder erection crane, and distribution beam is through the column anchoring at distribution beam anchor device and place; The track bearing beam top mark height of the girder erection crane of steel truss girder end face is identical between the top mark of base support high (being the distribution beam end face absolute altitude of direction across bridge) and first segment.
Column with vertically is connected system and plane and connects all to adopt between the system and be welded to connect, thereby the formation rock-steady structure; Column adopts the steel pipe column that diameter 800mm is above, wall thickness 10mm is above; The column bearing beam is welded with upper steel plate by thickness 16mm; The distribution beam of direction across bridge is welded by shaped steel, adopts box-structure, and the vertical member that connects system and plane connection system adopts box-structure.
The utility model is made up of column, column bearing beam, vertical system, plane connection system, front and back transverse distribution beam, bottom anchor device and the distribution beam anchor device of connecting; The bottom of column is fixed on the slipway beam of frame support bracket after passing the column bearing beam by the bottom anchor device; Column with vertically is connected system and plane and connects all to adopt between the system and be welded to connect, thereby the formation rock-steady structure; The column bearing beam is welded by steel plate, and column adopts steel pipe column, and the direction across bridge distribution beam is welded by shaped steel, adopts box-structure, is the support force transferring structure of base support, and the load of girder erection crane is reached on the frame support bracket.This base support can assist the full circle swinging girder erection crane to set up king-tower district steel truss girder; Not only can solve the problem that shifts to an earlier date the assembly unit girder erection crane in flood season during high water level; Thereby king-tower district steel truss girder is set up and the girder erection crane assembly unit does not receive the restriction of water level, and simple in structure, novel, stressed clear and definite, can shorten large-scale floating crane service time significantly; Minimizing equipment drops into, and has favorable economic benefit and social benefit.
Description of drawings
Fig. 1 is the mounting structure sketch map of the utility model;
Fig. 2 is the structural representation of the base support of simulation steel truss girder;
Fig. 3 is that the A-A of Fig. 2 is to sketch map;
Fig. 4 is that the B-B of Fig. 2 is to sketch map.
The specific embodiment
Below in conjunction with embodiment and contrast accompanying drawing the utility model is done further explain.
A kind of base support 3 that can assist the full circle swinging girder erection crane to set up the simulation steel truss girder of king-tower district steel truss girder; By column bearing beam 8, column 9, vertical connect be 14, the plane connect be 13, front and back transverse distribution beam 10, bottom anchor device 12, distribution beam anchor device 11 form, wherein: be fixed on the slipway beam 2 on frame support bracket 1 top after column bearing beam 8 is passed by bottom anchor device 12 in the bottom of the columns 9 of four vertical layouts; The layout of four root posts 9 is a rectangle, and the horizontal spacing of four root posts 9 is wide identical with the purlin of steel truss girder, and the longitudinal pitch of four root posts 9 equates with the panel length of steel truss girder; Between four root posts 9, be provided with the vertical connection that is used to form rock-steady structure and be 14 and to connect be 13 on the plane; The distribution beam 10 of two direction across bridge is used to support girder erection crane 4 before and after the end face of column 9 is provided with, and distribution beam 10 is provided with the connection otic placode that is used for fixing girder erection crane 4, and distribution beam 10 is through column 9 anchorings of distribution beam anchor device 11 with the place; The track bearing beam 5 top mark height of the girder erection crane 4 of steel truss girder 6 end faces are identical between the top mark of base support 3 high (being the distribution beam 10 end face absolute altitudes of direction across bridge) and first segment.
Column 9 is 14 and to connect be all to adopt between 13 to be welded to connect on the plane with vertically being connected, thus the formation rock-steady structure; Column 9 adopts the steel pipe column that diameter 800mm is above, wall thickness 10mm is above; Column bearing beam 8 is welded with upper steel plate by thickness 16mm; The distribution beam 10 of direction across bridge is welded by shaped steel, adopts box-structure, and vertical the connection is 14 and to connect be that 13 member adopts box-structure on the plane.
The installation of base support 3 and demolishing process:
1, earlier at the frame support bracket 1 of main pylon pier 7 other assembly unit king-tower district steel truss girders, base support 3 assemblings that will simulate steel truss girder again are combined into integral body; Between the highstand in flood season, utilize crane barge to lift base support 3 to the frame support bracket 1 and through slipway beam 2 anchorings of bottom anchor device 12, first full circle swinging girder erection crane 4 of assembly unit and fixing on base support 3 with distribution beam 10 with frame support bracket 1 top;
2, between first segment steel truss girder 6 set up and in place: utilize first good full circle swinging girder erection crane 4 of assembly unit earlier; Accomplish setting up of steel truss girder 6 between first segment in order; Again first full circle swinging girder erection crane 4 walked to walk between first segment on the steel truss girder 6; Utilize first full circle swinging girder erection crane 4 to remove base supports 3 then, with steel truss girder between first segment 6 and first full circle swinging girder erection crane 4 vertical shift to design attitude.
Claims (2)
1. a cable stayed bridge king-tower district steel truss girder sets up the base support of the simulation steel truss girder of auxiliary usefulness; It is characterized in that: form by column, column bearing beam, vertical system, plane connection system, front and back transverse distribution beam, bottom anchor device and the distribution beam anchor device of connecting, wherein: be fixed on the slipway beam on frame support bracket top after the column bearing beam is passed by the bottom anchor device in the bottom of four vertical columns of arranging; The layout of four root posts is a rectangle, and the horizontal spacing of four root posts is wide identical with the purlin of steel truss girder, and the longitudinal pitch of four root posts equates with the panel length of steel truss girder; Between four root posts, be provided with the vertical connection system and the plane that are used to form rock-steady structure and connect system; The distribution beam of two direction across bridge is used to support girder erection crane before and after the end face of column is provided with, and distribution beam is provided with the connection otic placode that is used for fixing girder erection crane, and distribution beam is through the column anchoring at distribution beam anchor device and place; The track bearing beam top mark height of the girder erection crane of steel truss girder end face is identical between the distribution beam end face absolute altitude of direction across bridge and first segment.
2. base support according to claim 1 is characterized in that: column with vertically is connected system and plane and connects all to adopt between the system and be welded to connect, thereby the formation rock-steady structure; Column adopts the steel pipe column that diameter 800mm is above, wall thickness 10mm is above; The column bearing beam is welded with upper steel plate by thickness 16mm; The distribution beam of direction across bridge is welded by shaped steel, adopts box-structure, and the vertical member that connects system and plane connection system adopts box-structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200466775U CN202509398U (en) | 2012-02-14 | 2012-02-14 | Base support frame of simulation steel truss girder for assisting erection of main tower zone steel truss girder of cable stayed bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200466775U CN202509398U (en) | 2012-02-14 | 2012-02-14 | Base support frame of simulation steel truss girder for assisting erection of main tower zone steel truss girder of cable stayed bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202509398U true CN202509398U (en) | 2012-10-31 |
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| CN2012200466775U Expired - Lifetime CN202509398U (en) | 2012-02-14 | 2012-02-14 | Base support frame of simulation steel truss girder for assisting erection of main tower zone steel truss girder of cable stayed bridge |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594201A (en) * | 2014-12-16 | 2015-05-06 | 中铁大桥局集团有限公司 | Method for erecting pier top steel beam through single-side pier-side bracket |
| CN105926457A (en) * | 2016-05-30 | 2016-09-07 | 中国铁建大桥工程局集团有限公司 | Method for mounting steel box girders in main tower area of cable-stayed bridge and auxiliary girder erection crane base |
| CN109356037A (en) * | 2018-11-26 | 2019-02-19 | 中铁六局集团有限公司 | Middle pier trusses and its construction method |
| CN110144829A (en) * | 2019-06-20 | 2019-08-20 | 中国五冶集团有限公司 | A kind of support construction being used to support bowstring arch bridge main structure |
-
2012
- 2012-02-14 CN CN2012200466775U patent/CN202509398U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594201A (en) * | 2014-12-16 | 2015-05-06 | 中铁大桥局集团有限公司 | Method for erecting pier top steel beam through single-side pier-side bracket |
| CN104594201B (en) * | 2014-12-16 | 2016-04-20 | 中铁大桥局集团有限公司 | A kind of method utilizing one-sided pier-side bracket to set up pier top girder steel |
| CN105926457A (en) * | 2016-05-30 | 2016-09-07 | 中国铁建大桥工程局集团有限公司 | Method for mounting steel box girders in main tower area of cable-stayed bridge and auxiliary girder erection crane base |
| CN109356037A (en) * | 2018-11-26 | 2019-02-19 | 中铁六局集团有限公司 | Middle pier trusses and its construction method |
| CN109356037B (en) * | 2018-11-26 | 2023-12-15 | 中铁六局集团有限公司 | Middle pier truss girder and construction method thereof |
| CN110144829A (en) * | 2019-06-20 | 2019-08-20 | 中国五冶集团有限公司 | A kind of support construction being used to support bowstring arch bridge main structure |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121031 |
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| CX01 | Expiry of patent term |