CN100519944C - Stress self-balancing and deviation rectification equipment for column system in use for push constructing bridge floor structure - Google Patents
Stress self-balancing and deviation rectification equipment for column system in use for push constructing bridge floor structure Download PDFInfo
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- CN100519944C CN100519944C CNB2003101092233A CN200310109223A CN100519944C CN 100519944 C CN100519944 C CN 100519944C CN B2003101092233 A CNB2003101092233 A CN B2003101092233A CN 200310109223 A CN200310109223 A CN 200310109223A CN 100519944 C CN100519944 C CN 100519944C
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- column
- head end
- steel strand
- displacable jack
- bridge deck
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Abstract
The invention relates to a stress self-balancing and deviation-rectifying equipment for upright post system in bridge deck structure jacking construction. Said equipment includes the following components: straight-through type jack, stranded wire, wind-resisting guy rope and anchorage device, etc. Said invention also provides the concrete mounting method and steps of the above-mentioned all the components for implementing stress felf-balancing and deviation-rectifying method of upright post system in bridge deck structure jacking construction.
Description
Technical field
The present invention relates to a kind of stressed self balancing device and method for correcting error of bridge deck structure incremental launching construction central post.
Background technology
The normal incremental launching construction technology that adopts in bridge construction at present, i.e. assembly unit bridge deck structure on the moulding bed of the design and installation position of bridge deck structure avris earlier, and then the bridge deck structure that assembly unit is good along column top thrusting slip one by one to the design attitude installation in position.When touching the column top in the bridge deck structure pushing tow process, can produce the thrust of horizontal direction because of the friction column, cause the column tip displacement, horizontal thrust be if will damage column when surpassing the design standard of column, constitutes dangerous to the safety of bridge and construction.In the existing technology measure normal adopt to set up the rigidity strut or draw establish cable wind rope and correct or reduce the influence of horizontal thrust column and the verticality of control column.Yet these construction equipments have certain limitation: these devices can be blocked traffic, can't construct at busy traffic zone; The rigidity strut is subjected to length restriction, but also need to consider stable problem, most importantly the horizontal thrust that in the bridge deck structure pushing tow process each column is produced is constantly to change, at any time regulate and control horizontal thrust that each column bears and tip displacement with these construction equipments and not only operate complicatedly, control accuracy also is difficult to guarantee.
Summary of the invention
The column top is because of horizontal thrust causes the detection and the regulation and control problem of displacement when the objective of the invention is to solve the bridge deck structure incremental launching construction that exists in the prior art, provides a kind of thinking novelty, device is simple, policer operation is convenient, the still retainable column system of construction area traffic is subjected to force self-balanced and deviation correcting device.The present invention designs the stressed self balancing device and the method for correcting error of bridge deck structure incremental launching construction central post, it is characterized in that: be installed with the vertically-displacable jack at head end and middle standing pillar top; There are steel strand to pass each vertically-displacable jack, on the terminal column that the end of steel strand is fixedly connected on moulding bed is fixedlyed connected, the head end of steel strand is by the ground tackle clamping of the vertically-displacable jack of head end column, and head end column top has the cable wind rope that is serially connected with screw-button to be anchored in ground.Utilize described column deviation correcting device to implement the method for correction, it is characterized in that: the ground tackle of vertically-displacable jack in the middle of unclamping, the tight steel strand of ground tackle anchor of hard-wired vertically-displacable jack on the head end column, the extension elongation of adjusting hard-wired vertically-displacable jack plunger on the head end column is again adjusted the pretightning force of steel strand, adjust the screw-button that is connected on the head end column again by the cable wind rope serial connection, the tip displacement that makes the head end column is zero, the ground tackle anchor of the hard-wired vertically-displacable jack in middle standing pillar top has tightly been applied the steel strand of pretightning force; When bridge deck structure was crossed column on the pushing tow moulding bed, the plunger of adjusting the hard-wired vertically-displacable jack in column top was flexible, and the tip displacement that makes column is zero.Advantage of the present invention is to have changed every root post stressed situation separately, make bridge substructure form a stressed self equilibrium systems, thereby the stressing influence of single upright column is weakened in the bridge deck structure incremental launching construction; Monitoring when every root post top is subjected to displacement in the construction and the operation of adjustment obtain simplifying, precision is improved; Apparatus structure is simple, Installation and Debugging are convenient, construction safety is reliable; And adopt this covering device can not block the traffic of construction area.
Description of drawings
Accompanying drawing is a construction schematic diagram of the present invention
Below in conjunction with embodiment the present invention is elaborated,
The specific embodiment
Assembly unit bridge deck structure on the moulding bed 4 of the design and installation position of bridge deck structure avris, fixedly mount vertically-displacable jack 5 at head end column 1 and each middle standing pillar 2 top of needs correction simultaneously, make each vertically-displacable jack 5 all on same straight line and unclamp the ground tackle of each vertically-displacable jack 5, steel strand 6 are passed each vertically-displacable jack 5, one end of steel strand 6 is fixed on terminal column 3 tops of fixedlying connected with moulding bed 4, after steel strand 6 arrangements in line, the other end is clamped by the ground tackle of the vertically-displacable jack 5 at head end column 1 top, at the fixedly connected cable wind rope 8 in head end column 1 top, be anchored in ground behind the other end of the cable wind rope 8 serial connection screw-button 7 again; After the ground tackle of vertically-displacable jack 5 is in releasing orientation on inspection and definite each middle standing pillar 2, the plunger extension elongation of adjusting vertically-displacable jack 5 on the head end column 1 is to apply pretightning force to steel strand 6, the pretightning force that applies is controlled at 50 percent of this column design horizontal thrust allowed to bear, the length of adjusting the screw-button 7 of serial connection in the cable wind rope 8 again is to correct the displacement on this column top, make displacement make zero, make the ground tackle clamping of vertically-displacable jack 5 on each middle standing pillar 2 be applied in the steel strand 6 of pretightning force then, thereby make moulding bed 4, each column 1-3, each vertically-displacable jack 5, steel strand 6, cable wind rope 8, screw-button 7 and the earth form a stressed self equilibrium systems.
When the bridge deck structure pushing tow passes through certain column top, monitor degree of displacement and development trend that this column top takes place, and can adjust the plunger extension elongation of vertically-displacable jack 5 on this column at any time, the displacement that this column top takes place is made zero; According to this operation sequence in the bridge deck structure pushing tow one by one the displacement on each column top of process monitor and adjust, finish until incremental launching construction.
The present invention has broken through the thinking that existing technology measure is only reinforced single upright column, make bridge substructure form a stressed self equilibrium systems, changed every root post stressed situation separately, the stressing influence of single upright column is weakened in the bridge deck structure incremental launching construction, thereby needn't take to reinforce stabilizing measures in addition by column, and monitoring and the operation of adjustment of every root post top when being subjected to displacement obtains simplifying in the construction, precision is improved; Apparatus of the present invention are simple in structure, Installation and Debugging are convenient, construction safety is reliable; And adopt this covering device can not block the traffic of construction area, be specially adapted to the construction of the bigger bridge of transport hub or column span.
Claims (2)
1, the stressed self balancing device of bridge deck structure incremental launching construction central post is characterized in that: be installed with the vertically-displacable jack at head end and middle standing pillar top; There are steel strand to pass each vertically-displacable jack, on the terminal column that the end of steel strand is fixedly connected on moulding bed is fixedlyed connected, the head end of steel strand is by the ground tackle clamping of the vertically-displacable jack of head end column, and head end column top has the cable wind rope that is serially connected with screw-button to be anchored in ground.
2, utilize the method for correcting error of the stressed self balancing device of the described bridge deck structure incremental launching construction of claim 1 central post, it is characterized in that: the ground tackle of vertically-displacable jack in the middle of unclamping, the tight steel strand of ground tackle anchor of hard-wired vertically-displacable jack on the head end column, the extension elongation of adjusting hard-wired vertically-displacable jack plunger on the head end column is again adjusted the pretightning force of steel strand, adjust the screw-button that is connected on the head end column again by the cable wind rope serial connection, the tip displacement that makes the head end column is zero, the ground tackle anchor of the hard-wired vertically-displacable jack in middle standing pillar top has tightly been applied the steel strand of pretightning force; When bridge deck structure was crossed column on the pushing tow moulding bed, the plunger of adjusting the hard-wired vertically-displacable jack in column top was flexible, and the tip displacement that makes column is zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101092233A CN100519944C (en) | 2003-12-10 | 2003-12-10 | Stress self-balancing and deviation rectification equipment for column system in use for push constructing bridge floor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101092233A CN100519944C (en) | 2003-12-10 | 2003-12-10 | Stress self-balancing and deviation rectification equipment for column system in use for push constructing bridge floor structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1626734A CN1626734A (en) | 2005-06-15 |
| CN100519944C true CN100519944C (en) | 2009-07-29 |
Family
ID=34758887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101092233A Expired - Fee Related CN100519944C (en) | 2003-12-10 | 2003-12-10 | Stress self-balancing and deviation rectification equipment for column system in use for push constructing bridge floor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100519944C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101259940B (en) * | 2007-03-07 | 2011-11-09 | 柳州欧维姆机械股份有限公司 | Large tonnage backstay multi-cable wind-rope simultaneously pretightening or releasing system and method thereof |
| CN101492967B (en) * | 2008-01-22 | 2011-01-19 | 上海宝冶建设有限公司 | Steel column error-correcting method |
| CN102102343A (en) * | 2010-12-17 | 2011-06-22 | 杭州市市政工程集团有限公司 | Method for correcting torsion of continuous box girder curved bridge |
| CN102619174B (en) * | 2012-03-20 | 2014-05-28 | 中铁四局集团钢结构有限公司 | Large-span continuous steel truss girder arch pushing device |
| CN102733316B (en) * | 2012-07-13 | 2014-07-23 | 中铁大桥局股份有限公司 | Integral synchronous rotary jacking construction method for small radius horizontal curved bridge |
| CN102778893B (en) * | 2012-08-07 | 2014-10-08 | 中铁二十三局集团有限公司 | Precise locating detecting method for truss girder |
| CN111608212B (en) * | 2019-02-24 | 2022-07-22 | 广州市市政工程试验检测有限公司 | Hydraulic self-balancing type single-pile vertical pulling-resistant static load test method and device |
| CN112177039B (en) * | 2019-07-03 | 2022-03-29 | 中天建设集团有限公司 | Top-down construction method one-pile one-column high-precision auxiliary verticality adjusting construction method |
| CN113526365B (en) * | 2021-07-27 | 2024-02-27 | 湖南省中南桥梁安装工程有限公司 | Cable crane lifting rope and traction rope tower top self-balancing system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3501075A1 (en) * | 1985-01-15 | 1986-07-17 | Polensky & Zöllner GmbH & Co, 6000 Frankfurt | Method and device for longitudinal displacement of an elongated construction |
| CN86201711U (en) * | 1986-03-22 | 1987-06-10 | 湖南省公路管理局 | Self-aligning shifting bearings for horizontal jack |
| FR2750146A1 (en) * | 1996-06-21 | 1997-12-26 | Royer Jacques | Installation or dismantling of bridge decks by pushing deck into position |
-
2003
- 2003-12-10 CN CNB2003101092233A patent/CN100519944C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3501075A1 (en) * | 1985-01-15 | 1986-07-17 | Polensky & Zöllner GmbH & Co, 6000 Frankfurt | Method and device for longitudinal displacement of an elongated construction |
| CN86201711U (en) * | 1986-03-22 | 1987-06-10 | 湖南省公路管理局 | Self-aligning shifting bearings for horizontal jack |
| FR2750146A1 (en) * | 1996-06-21 | 1997-12-26 | Royer Jacques | Installation or dismantling of bridge decks by pushing deck into position |
Non-Patent Citations (2)
| Title |
|---|
| 连续箱梁顶推法施工工艺. 秦卫雄.湖南交通科技，第29卷第3期. 2003 |
| 连续箱梁顶推法施工工艺. 秦卫雄.湖南交通科技，第29卷第3期. 2003 * |
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| Publication number | Publication date |
|---|---|
| CN1626734A (en) | 2005-06-15 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI MECHANIZED CONSTRUCTION CO., LTD. Free format text: FORMER NAME: SHANGHAI CITY MACHINERY CONSTRUCTION CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 200072, Shanghai, 200 old Shanghai Road Patentee after: Shanghai Mechanized Construction Group Co., Ltd. Address before: 200072, Shanghai, 200 old Shanghai Road Patentee before: Shanghai Mechanized Construction Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090729 Termination date: 20181210 |
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| CF01 | Termination of patent right due to non-payment of annual fee |