CN101831872B - Front and rear fulcrum combined cradle - Google Patents
Front and rear fulcrum combined cradle Download PDFInfo
- Publication number
- CN101831872B CN101831872B CN2010101698188A CN201010169818A CN101831872B CN 101831872 B CN101831872 B CN 101831872B CN 2010101698188 A CN2010101698188 A CN 2010101698188A CN 201010169818 A CN201010169818 A CN 201010169818A CN 101831872 B CN101831872 B CN 101831872B
- Authority
- CN
- China
- Prior art keywords
- load
- carrying construction
- girder
- fulcrum
- rear fulcrum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention relates to a cradle for use in bridge construction, in particular to a front and rear fulcrum combined cradle which is suitable to be used in engineering construction of bridges such as wide main beam, long-section, large-tonnage and single plane cable stayed bridges with complex requirements. The cradle comprises a travelling mechanism, a bearing structure, an anchoring device, a template and a cradle bottom platform, and is characterized in that: the bearing structure comprises a front fulcrum bearing structure and a rear fulcrum bearing structure; the front fulcrum bearing structure corresponding to the positions of the stay cables of the single plane cable stayed bridges; the rear fulcrum bearing structure is divided into two sets which are distributed on two sides of the front fulcrum bearing structure; and the rear fulcrum bearing structure is hinged with the cradle bottom platform of the front fulcrum bearing structure, and the template is overlapped on the hinged part. The front and rear fulcrum combined cradle adopting the technical scheme of the invention has a reasonable bearing structure and high stability, makes the adjustment of the standard height of the bottom template convenient, and meets the complex requirements of wide main beam, long-section, large-tonnage and single plane cable stayed bridges and the like.
Description
Technical field
The present invention relates to the Hanging Basket that a kind of bridge construction is used, be specifically related to a kind of front and rear fulcrum combined cradle that is applicable to the complicated bridge engineering construction that requires such as wide girder, long segment, large-tonnage, single plane cable stayed bridge.
Background technology
The Hanging Basket of cable-stayed bridge main-beam construction at present both at home and abroad mainly is divided into two kinds of front fulcrum and rear fulcrums by the stress form of its load-carrying construction.
The characteristics of rear fulcrum Hanging Basket are not utilize the front end suspension cable, by the rigidity of Hanging Basket agent structure, form the cantilever system entirely, and platform at the bottom of the suspension Hanging Basket carries out concreting.The rear fulcrum cradle structure is simple, and stressed clear and definite, walking is convenient, is extensive use of on continuous rigid frame bridge and cable stayed bridge.Its major defect: Hanging Basket is conducted oneself with dignity and is treated that the beam that the pouring concrete load has been built to last sections will produce bigger construction stress; , weight heavier sections big for cantilever, the design of rear fulcrum Hanging Basket is also uneconomical.
The characteristics of Hanging basket on front support are to utilize the front fulcrum of the suspension cable of sections to be poured as Hanging Basket, form system of simple supporting with the anchor point of building on the sections, and Hanging Basket Hanging Basket platform and major bearing structures are below bridge.Because front end has the suspension cable effect, the young concrete load is by the front end suspension cable and built sections and born jointly, helps reducing the construction stress of having built sections.Simultaneously, in concreting process, before the initial set,, can adjust the unstressed absolute altitude of concrete segment, help construction control by adjusting the front end stay cable force.The major defect of Hanging basket on front support: the layout of main truss cradle is subjected to the restriction of suspension cable position bigger, particularly at single rope face width girder cable stayed bridge, the suspension cable of front fulcrum is positioned at the centre of wide girder, structure space actuating system complexity, the lateral stability design difficulty is big, and it is big that the horizontal discrepancy in elevation of girder is adjusted difficulty.Also more complicated of the running gear of Hanging Basket in addition.
At present, along with the development of construction technology, the design of cable stayed bridge suspension cable is varied, and single rope face suspension cable increases gradually, and girder is to the wide box structure development of big section, and the sections of construction is long, Heavy Weight.Such as certain bridge, bridge type is the single rope surface concrete of a Low Towers cable stayed bridge, main bridge total length 644.43m, and span is arranged 75+145+330+95, main span is striden footpath 330m.Main bridge case beam is oblique web form, streamlined appearance, the wide 32.5m of bridge, case bottom width 9m, deck-molding 3.6m, standard knot segment length 7m, maximum weight 568t, this bridge has high requirement to the design and construction of Hanging Basket, if take traditional front fulcrum or rear fulcrum cradle construction all to have bigger construction risk merely.All there are comparatively significant disadvantages in traditional Hanging basket on front support or rear fulcrum Hanging Basket.
Summary of the invention
The technical problem to be solved in the present invention provide a kind of force structure rationally, good stability, what be convenient to regulate the soffit formwork absolute altitude is suitable for the complicated front and rear fulcrum combined cradle that requires such as wide girder, long segment, large-tonnage, single plane cable stayed bridge.
In order to solve the problems of the technologies described above, the invention provides a kind of front and rear fulcrum combined cradle, comprise walking mechanism, load-carrying construction, anchor device, platform at the bottom of template and the basket, load-carrying construction is fixed on the bridge floor by anchor device and chooses to the bridge floor direction of waiting to construct, its overhanging portion below is hung to draw and is connected platform at the bottom of the basket, connect template at the bottom of the basket on the platform, load-carrying construction also is connected with walking mechanism, walking mechanism comprises power-equipment, be anchored at the guide rail and the running gear of building on the bridge, described load-carrying construction comprises front fulcrum load-carrying construction and rear fulcrum load-carrying construction, the front fulcrum load-carrying construction is corresponding to the suspension cable position of single rope face bridge floor, the rear fulcrum load-carrying construction is two covers, be distributed in the both sides of front fulcrum load-carrying construction, the wing plate position of corresponding bridge cross section; The front fulcrum load-carrying construction comprises front end arc beam anchor-hold system, girder, secondary beam, crossbeam, thrust block and back suspension centre; The rear fulcrum load-carrying construction comprises girder and following girder, adopts to hang between the upper and lower girder and draws connection, and the following girder of inboard close front fulcrum load-carrying construction and the secondary beam of front fulcrum load-carrying construction combine together; Platform is articulated and connected at the bottom of the basket of corresponding rear fulcrum load-carrying construction and front fulcrum load-carrying construction; Described walking mechanism is located on the secondary beam of front fulcrum load-carrying construction.
Adopt the front and rear fulcrum combined cradle of technique scheme, have following advantage:
(1) the rear fulcrum Hanging Basket of Zeng Jiaing has strengthened the lateral stability of whole cradle structure;
(2) platform of the blue end of corresponding rear fulcrum load-carrying construction and front fulcrum load-carrying construction adopts and is articulated and connected, and Hanging basket on front support drag-line power does not pass to two girders in the outside of rear fulcrum Hanging Basket in the middle of guaranteeing, makes things convenient for the horizontal absolute altitude of rear fulcrum Hanging Basket outside girder adjustment simultaneously.
(3) structure design of Hanging Basket is optimized greatly, further expanded in the compliance of aspects such as long segment, large-tonnage, wide girder, single rope face, supporting capacity can reach the above rank of 600t.
(4) hinged between the platform at the bottom of platform and the Hanging basket on front support at the bottom of the rear fulcrum Hanging Basket, the Hanging Basket peace is torn open conveniently.
Further, the structure and the template of platform at the bottom of the basket limited, it is characterized in that: terrace part comprises girder, secondary beam, crossbeam at the bottom of the basket of corresponding front fulcrum load-carrying construction, adopts the bulk steel form, and is closely connected in girder to be poured bottom; The terrace part of the blue end of corresponding rear fulcrum load-carrying construction comprises and is clouded in two shaped steel crossbeams between the following girder, adopts the bulk steel form, the wing plate bottom of closely connected bridge sections girder to be poured.This structural entity good rigidity, airtight performance is good, spillage not, template is repeatedly used indeformable.
Further, the power-equipment of walking mechanism is limited, it is characterized in that: the power-equipment of described running gear comprises 4 cluster numerical control hydraulic jack that adopt Synchronization Control.
Description of drawings
Fig. 1 is the elevational schematic view of embodiment of the invention front and rear fulcrum combined cradle;
Fig. 2 is the generalized section of embodiment of the invention front and rear fulcrum combined cradle.
The specific embodiment
Below in conjunction with drawings and Examples technical solution of the present invention is further specified:
As depicted in figs. 1 and 2, the invention provides a kind of front and rear fulcrum combined cradle, comprise walking mechanism 1, load-carrying construction 2, anchor device 3, platform 5 at the bottom of template 4 and the basket, load-carrying construction 2 is fixed on the bridge floor by anchor device 3 and chooses to the bridge floor direction of waiting to construct, its overhanging portion below is hung to draw and is connected platform 5 at the bottom of the basket, connect template 4 at the bottom of the basket on the platform 5, load-carrying construction 2 also is connected with walking mechanism 1, walking mechanism 1 comprises four cluster numerical control hydraulic jack 11 that adopt Synchronization Control, and be anchored at the guide rail 12 and the running gear 13 of building on the bridge, load-carrying construction 2 comprises front fulcrum load-carrying construction 21 and rear fulcrum load-carrying construction 22, front fulcrum load-carrying construction 21 is corresponding to suspension cable 6 positions of single rope face bridge floor, rear fulcrum load-carrying construction 22 is two covers, be distributed in the both sides of front fulcrum load-carrying construction 21, the wing plate position of corresponding bridge cross section; Front fulcrum load-carrying construction 21 comprises front end arc beam anchor-hold system 211, girder 212, secondary beam 213, crossbeam 214, thrust block 215 and back suspension centre 216; Rear fulcrum load-carrying construction 22 comprises girder 221 and following girder 222, adopts to hang between last girder 221 and the following girder 222 and draws connection, and the following girder 222 of inboard close front fulcrum load-carrying construction 21 combines together with the secondary beam 213 of front fulcrum load-carrying construction 21; Platform 5 is articulated and connected at the bottom of the basket of corresponding rear fulcrum load-carrying construction 22 and front fulcrum load-carrying construction 21; Walking mechanism 1 is located on the secondary beam 213 of front fulcrum load-carrying construction 21; Comprise girder 212, secondary beam 213, crossbeam 214 corresponding to platform 5 at the bottom of the basket of front fulcrum load-carrying construction 21, corresponding template is a girder steel form 54, girder steel form 54 girder closely connected and to be poured bottoms; Comprise corresponding to platform 5 at the bottom of the basket of rear fulcrum load-carrying construction 22 being clouded in two shaped steel crossbeams 223 between the following girder 222, corresponding template is big girder wing plate punching block 55, the wing plate bottom of its closely connected bridge sections girder to be poured.
Above-described only is preferred implementation of the present invention; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from structure of the present invention; can also make some distortion and improvement; these also should be considered as protection scope of the present invention, and these can not influence effect of the invention process and practical applicability.
Claims (4)
1. front and rear fulcrum combined cradle, comprise walking mechanism, load-carrying construction, anchor device, platform at the bottom of template and the basket, load-carrying construction is fixed on the bridge floor by anchor device and stretches out to the bridge floor direction of waiting to construct, platform at the bottom of the load-carrying construction connection basket, connect template at the bottom of the basket on the platform, load-carrying construction also is connected with walking mechanism, walking mechanism comprises power-equipment, be anchored at the guide rail and the running gear of building on the bridge, it is characterized in that: described load-carrying construction comprises front fulcrum load-carrying construction and rear fulcrum load-carrying construction, the front fulcrum load-carrying construction is corresponding to the suspension cable position of single rope face bridge floor, the rear fulcrum load-carrying construction is two covers, be distributed in the both sides of front fulcrum load-carrying construction, the wing plate position of corresponding bridge cross section; The front fulcrum load-carrying construction comprises front end arc beam anchor-hold system, girder, secondary beam, crossbeam, thrust block and back suspension centre; The rear fulcrum load-carrying construction comprises girder and following girder, adopts to hang between the upper and lower girder and draws connection, and the following girder of inboard close front fulcrum load-carrying construction and the secondary beam of front fulcrum load-carrying construction combine together; Platform is articulated and connected at the bottom of the basket of corresponding rear fulcrum load-carrying construction and front fulcrum load-carrying construction; Described walking mechanism is located on the last girder of rear fulcrum load-carrying construction.
2. front and rear fulcrum combined cradle as claimed in claim 1 is characterized in that: terrace part comprises girder, secondary beam, crossbeam at the bottom of the basket of corresponding front fulcrum load-carrying construction, and corresponding template is the bulk steel form, and template is closely connected in girder to be poured bottom.
3. front and rear fulcrum combined cradle as claimed in claim 1 or 2, it is characterized in that: terrace part comprises and is clouded in two shaped steel crossbeams between the following girder at the bottom of the basket of corresponding rear fulcrum load-carrying construction, corresponding template is the bulk steel form, the wing plate bottom of closely connected bridge sections girder to be poured.
4. front and rear fulcrum combined cradle as claimed in claim 1 or 2 is characterized in that: the power-equipment of described running gear comprises 4 cluster numerical control hydraulic jack that adopt Synchronization Control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101698188A CN101831872B (en) | 2010-05-12 | 2010-05-12 | Front and rear fulcrum combined cradle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101698188A CN101831872B (en) | 2010-05-12 | 2010-05-12 | Front and rear fulcrum combined cradle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101831872A CN101831872A (en) | 2010-09-15 |
| CN101831872B true CN101831872B (en) | 2011-07-06 |
Family
ID=42716071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101698188A Expired - Fee Related CN101831872B (en) | 2010-05-12 | 2010-05-12 | Front and rear fulcrum combined cradle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101831872B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074854B (en) * | 2013-01-23 | 2014-12-17 | 中交四航局第一工程有限公司 | Rear supporting point triangular bracket hanging basket and bridge construction method using same |
| CN103498426A (en) * | 2013-10-17 | 2014-01-08 | 重庆城建控股(集团)有限责任公司 | Construction method of super-tonnage single-cable-plane front fulcrum and back fulcrum combined type basket hanging system |
| CN104631324A (en) * | 2014-12-17 | 2015-05-20 | 上海市基础工程集团有限公司 | Front supporting point hanging basket construction process used for inclined pull bridge super-wide flange girder |
| CN107747399B (en) * | 2017-11-10 | 2023-06-02 | 湖南联智智能科技有限公司 | Hanging basket walking system and working method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5104089A (en) * | 1989-10-05 | 1992-04-14 | Landes Company Inc. | Concrete pouring form system for bridge overhang decks |
| CN1123861A (en) * | 1995-08-28 | 1996-06-05 | 铁道部大桥工程局 | Construction of prestressed concrete stayed cable bridge |
| CN2291443Y (en) * | 1996-08-29 | 1998-09-16 | 湖南省公路桥梁建设总公司 | Hanging basket on front support |
| KR20030093680A (en) * | 2002-06-05 | 2003-12-11 | 브이에스엘코리아 주식회사 | The construction method of double-t girder bridge by underslung movable scaffolding system |
| CN2597531Y (en) * | 2002-11-21 | 2004-01-07 | 广东省长大公路工程有限公司第一分公司 | Single rope face tracting rope hanging cage |
| JP2008038463A (en) * | 2006-08-07 | 2008-02-21 | Shimizu Corp | Bridge girder erection method |
| JP2008274637A (en) * | 2007-04-27 | 2008-11-13 | Ps Mitsubishi Construction Co Ltd | Construction method for continuous viaduct |
| CN201187038Y (en) * | 2008-04-25 | 2009-01-28 | 中交第二航务工程局有限公司 | Hanging basket integral hoisting apparatus |
| JP2009108635A (en) * | 2007-10-31 | 2009-05-21 | Sumitomo Mitsui Construction Co Ltd | Bridge construction method |
| RU2381326C1 (en) * | 2008-11-14 | 2010-02-10 | Открытое акционерное общество по проектированию строительства мостов "Институт Гипростроймост" | Device for lifting and erecting units of superstructure |
-
2010
- 2010-05-12 CN CN2010101698188A patent/CN101831872B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5104089A (en) * | 1989-10-05 | 1992-04-14 | Landes Company Inc. | Concrete pouring form system for bridge overhang decks |
| CN1123861A (en) * | 1995-08-28 | 1996-06-05 | 铁道部大桥工程局 | Construction of prestressed concrete stayed cable bridge |
| CN2291443Y (en) * | 1996-08-29 | 1998-09-16 | 湖南省公路桥梁建设总公司 | Hanging basket on front support |
| KR20030093680A (en) * | 2002-06-05 | 2003-12-11 | 브이에스엘코리아 주식회사 | The construction method of double-t girder bridge by underslung movable scaffolding system |
| CN2597531Y (en) * | 2002-11-21 | 2004-01-07 | 广东省长大公路工程有限公司第一分公司 | Single rope face tracting rope hanging cage |
| JP2008038463A (en) * | 2006-08-07 | 2008-02-21 | Shimizu Corp | Bridge girder erection method |
| JP2008274637A (en) * | 2007-04-27 | 2008-11-13 | Ps Mitsubishi Construction Co Ltd | Construction method for continuous viaduct |
| JP2009108635A (en) * | 2007-10-31 | 2009-05-21 | Sumitomo Mitsui Construction Co Ltd | Bridge construction method |
| CN201187038Y (en) * | 2008-04-25 | 2009-01-28 | 中交第二航务工程局有限公司 | Hanging basket integral hoisting apparatus |
| RU2381326C1 (en) * | 2008-11-14 | 2010-02-10 | Открытое акционерное общество по проектированию строительства мостов "Институт Гипростроймост" | Device for lifting and erecting units of superstructure |
Non-Patent Citations (8)
| Title |
|---|
| JP特开2008038463A 2008.02.21 |
| JP特开2008274637A 2008.11.13 |
| JP特开2009108635A 2009.05.21 |
| 张正伟.贝雷及工字钢组合挂篮在大块件悬浇箱梁中的应用.《交通科技》.2009,(第S2期),1-3. |
| 李三珍,蒲怀仁,宁晓骏.桁架三角型组合挂篮的可行性研究和设计.《昆明理工大学学报》.2002,第27卷(第5期),93-95. * |
| 王春生 |
| 王春生;张正伟.贝雷及工字钢组合挂篮在大块件悬浇箱梁中的应用.《交通科技》.2009,(第S2期),1-3. * |
| 王治均等.重载轻型桁架斜拉式组合挂篮的研究.《昆明理工大学学报(理工版)》.2003,第28卷(第4期),75-77. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101831872A (en) | 2010-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104612058B (en) | A kind of construction method of buckstay flexible arch bridge | |
| CN106958206B (en) | Hybrid structure of arch and beam formula continuous rigid frame bridge bilayer bottom basket bilayer button hangs constructing device and method | |
| CN103074854B (en) | Rear supporting point triangular bracket hanging basket and bridge construction method using same | |
| CN206553961U (en) | The short light-duty expanded letter combined type Hanging Basket of tower cable-stayed bridge | |
| CN102409618B (en) | Inverted type triangular and obliquely-creeping cradle | |
| CN101559905A (en) | Deck unit erection gantry | |
| CN101446074B (en) | Installation and closure construction method for steel sliding roadway arch on top surface of steel trussed beam bridge | |
| CN101831872B (en) | Front and rear fulcrum combined cradle | |
| CN103938552A (en) | Self-balancing cantilevering construction method for large-span steel truss arch bridge and main pier limiting supports | |
| CN106381814B (en) | Roll over shape steel web continuous box girder jenny mould bases cantilever structure and its construction | |
| CN103882812A (en) | Construction method for midspan main beams of cable-stayed bridge | |
| CN109736206A (en) | Wavelike steel webplate continuous bridge end bay closes up cast-in-place support structure and construction method | |
| CN111764282B (en) | Rigid suspension cable stiffening steel truss bridge construction method based on inclined pull buckling hanging method | |
| CN206667079U (en) | Basket double-deck button in hybrid structure of arch and beam formula continuous rigid frame bridge bilayer bottom hangs constructing device | |
| JPS59501465A (en) | Split casting equipment for prestressed concrete bridges using cantilever construction method | |
| CN207032062U (en) | Tower with suspended cable available for Large-span Steel Box Beam construction | |
| JP4220295B2 (en) | Corrugated steel sheet web PC bridge closure method | |
| CN202280022U (en) | Inversely-hung triangular aslant-climbing hanging basket | |
| CN206233120U (en) | Folding shape steel web continuous box girder jenny mould bases cantilever structure | |
| CN201458544U (en) | Carrying pole for mounting component | |
| CN207452680U (en) | A kind of curve chord steel truss is put more energy into continuous beam | |
| CN205171343U (en) | Combination beam self anchored suspension bridge | |
| CN201762658U (en) | Front-back pivot combined type cradle | |
| CN215593730U (en) | Hanging basket for parasitic support with beam plate on wide body of cable-stayed bridge with cantilever pouring double-side box | |
| CN106351123B (en) | A kind of more case Wavelike steel webplate main girder construction Hanging Baskets of list rope |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20200512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |