CN2263134Y - Short platform compound hauling-rope type hanging basket - Google Patents
Short platform compound hauling-rope type hanging basket Download PDFInfo
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- CN2263134Y CN2263134Y CN 95237394 CN95237394U CN2263134Y CN 2263134 Y CN2263134 Y CN 2263134Y CN 95237394 CN95237394 CN 95237394 CN 95237394 U CN95237394 U CN 95237394U CN 2263134 Y CN2263134 Y CN 2263134Y
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- platform
- hanging basket
- tripod
- rope
- hauling
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Abstract
The utility model relates to a short platform compound hauling-rope type hanging basket used in the construction of a prestressed concrete cable-stayed bridge. Two tripods with lower camber rigid beams composed of beam stiffening girders are added on the basis of an existing long platform hauling-rope type hanging basket, a front hanger rod of each tripod can provide a vertical rigid support to the front end of a platform of a hanging basket mould plate, and the front hanger rod is stressed with a hauling rope together, so as to carry the hanging basket in a support pattern of simple support under construction, to decrease the length of the mould plate platform and the self weight of the hanging basket, and to decrease the reactive force of a hook of the platform greatly. The cross section need not be enlarged and the permanent structural material need not be increased in a cable-stayed bridge main beam, because of the need of the construction.
Description
The utility model relates to a kind of bridge construction equipment, particularly relates to a kind of hauling-rope type Hanging Basket of prestressed concrete cable-stayed bridge main girder construction.
In the prior art, the hauling-rope type Hanging Basket of a kind of prestressed concrete cable-stayed bridge construction close with the utility model mainly is made up of main truss support mechanism (being platform), template mechanism, guy rope mechanism, anchoring mechanism, height-regulating mechanism and running mechanism six parts.The main truss support mechanism of this Hanging Basket vertically is made up of four Pin universal rod body trusses, laterally connect by three Pin universal rod body trusses, and in the trusses front end certain limit of the outside, be provided with the anchoring chute that connects with guy rope mechanism, the place is provided with the traveling bracket at middle trusses, make whole Hanging Basket by guy rope mechanism and anchoring mechanism, whole load in construction are passed in king-tower and having become on the beam section, after the construction of girder sections is finished, Hanging Basket is finished transfer by the travelling wheel on traveling bracket and the tail end crossbeam.For example, " the door cable stayed bridge hauling-rope type cradle construction new technology near a river " that people such as Chen Keji write, the 2nd phase of " bridge construction " nineteen ninety-five, the 68th page to 70 pages.It is that vertical load with Hanging Basket front end (that is platform front end) directly reaches the cable stayed bridge king-tower that the guy rope mechanism of this hauling-rope type Hanging Basket mainly acts on, act on vertical load on the cable-stayed bridge main-beam to reduce Hanging Basket, and this mode only provides an oblique fulcrum with guy rope to the Hanging Basket front end, can not play the transfer function of vertical load completely effectively, simultaneously because the relative flexibility of guy rope, make the Hanging Basket supporting still be the semi girder support pattern, therefore, the platform that makes Hanging Basket can only be the long platform with longer anchorage length, the platform that makes this Hanging Basket is from great, the counter-force of platform hook is bigger, cause cable-stayed bridge main-beam because of construction needs enlarging section, increased nonvolatil structural meterials.
The purpose of this utility model is to overcome the defective of above-mentioned Hanging Basket, a kind of tripod that increased is provided, preceding suspension rod with each tripod provides a vertical rigid support to Hanging Basket platform front end, and preceding suspension rod and guy rope acting in conjunction, Hanging Basket is carried with the freely-supported support pattern in construction, thereby reduce land lengths and deadweight, and the compound hauling-rope type Hanging Basket of short platform that reduces platform hook counter-force significantly.
The purpose of this utility model is achieved in that and adopts two by the beam tripod that the lower edge reinforcing beam is arranged that the purlin constitutes of putting more energy into, the lower edge reinforcing beam upper support of tripod preceding suspension rod, rear suspension bar, back anchor pole and traveling suspension rod, consider that it bears stick force, the lower edge reinforcing beam of tripod adopts the box section form, be provided with the walking rails of template platform traveling dolly on the lower cover of its bracketed part, consider the independent traveling tilting complex torque of tripod equilibrium problem, be added with ballast at the tripod afterbody, the template platform is suspended on the tripod by preceding suspension rod and rear suspension bar, back anchor pole is anchored in bridge main beam with tripod by the arm-tie that is embedded in bridge main beam and has poured into a mould in the sections, when the traveling of template platform, traveling suspension rod two ends are individually fixed on the walking rails of the front beam bottom surface of template platform and tripod lower edge reinforcing beam base plate.The template platform is made up of front beam, rear cross beam, guy rope beam, suspension rod longeron, common longeron, horizontal trusses and safe tail boom, and front beam and rear cross beam adopt the put more energy into combining structure of purlin of beam, are beneficial to reduce platform amount of deflection and concrete pouring; The direct fixed stay of guy rope beam leads cable force with bearing, and guy rope is fixed in the arc head of guy rope beam; The suspension rod longeron is used for the connection of preceding suspension rod of tripod and rear suspension bar, and the suspension rod longeron is prolonged the safe tail boom of formation backward, in case the template platform is too fast excessive because of contingency descends; Horizontal trusses is arranged at following neutral axis place near front beam, rear cross beam, common longeron bottom surface, and the guy rope horizontal force that the guy rope beam is transmitted passes to the shear-pin that bridge main beam has been poured into a mould sections and sections joining place to be cast.Guy rope is the outer rope of root one of in the permanent suspension cable of the cable stayed bridge rope arranged side by side, in construction, be fixed on the arc head of template platform guy rope beam by its prolongation, make the preceding suspension rod of itself and tripod stressed jointly, so that Hanging Basket in construction on freely-supported support pattern carrying, thereby reduce template land lengths and Hanging Basket deadweight.
Technique scheme compared with prior art, owing to increased by two by beam the tripod that the lower edge reinforcing beam is arranged that the purlin constitutes of putting more energy into, and provide a vertical rigid support to Hanging Basket template platform front end with the preceding suspension rod of each tripod, and it is stressed jointly with guy rope, make Hanging Basket in construction, carry with the freely-supported support pattern, so reduced the deadweight of template land lengths and Hanging Basket, thereby reduced the counter-force of platform hook significantly, and need not make cable-stayed bridge main-beam need enlarging section and the nonvolatil structural meterials of increase because of construction.
Fig. 1 is the compound dragging suspension basket elevation of short platform;
Fig. 2 is the compound dragging suspension basket tripod of a short platform rated figure;
Fig. 3 is the compound dragging suspension basket cross-sectional view of short platform;
Fig. 4 is the compound dragging suspension basket template of a short platform platform structure schematic diagram;
Fig. 5 is the compound dragging suspension basket tripod of a short platform lower edge reinforcing beam structural representation;
Fig. 6 is that the compound dragging suspension basket tripod of short platform traveling suspension rod is arranged schematic diagram;
Fig. 7 is the compound dragging suspension basket template of short platform platform guy rope beam arc head and guy rope
Connect schematic diagram;
Fig. 8 is a cable-stayed bridge main-beam section form among the utility model embodiment.
Below in conjunction with embodiment and accompanying drawing the utility model is further described.
The Changjiang river, Wuhan City road bridge, main span is the two rope face prestressed concrete cable-stayed bridges of double tower, span is 180+400+180m, and suspension cable is the rope arranged side by side by inside and outside rope combination, and the rope distance is 8m, girder is the separate type box-girder, beam face width 29.4m, its section form as shown in Figure 8, the cast stage is long to be 8m, heavy 500t, the utility model are that embodiment designs with this bridge girder construction with the compound dragging suspension basket of short platform promptly.
Fig. 1 is the compound dragging suspension basket elevation of short platform.Design of the present utility model mainly by tripod 1 and 1 ', template platform 2 and guy rope 3 and 3 ' three big bearing structures partly form.Tripod 1 and 1 ' by back anchor pole 7 and 7 ' poured into a mould the sections anchoring with girder, and stretch out cantilever with support sections to be cast, consider tripod 1 and 1 ' independent traveling tilting complex torque equilibrium problem, tripod 1 and 1 ' afterbody be added with ballast 8 and 8 ', tripod 1 and 1 ' on, supporting before suspension rod 4 and 4 ', rear suspension bar 5 and 5 ', traveling suspension rod 6 and 6 ', the back anchor pole 7 and 7 '.Tripod 1 and 1 ' lead arm length must satisfy the needs of girder sections to be cast construction length, in the present embodiment greater than 9.6m; Supporting capacity must satisfy the counter-force by the template platform 2 of preceding suspension rod 4 and 4 ' transmit.Tripod 1 and 1 ' in the construction operation of concrete pouring, preceding suspension rod 4 and 4 ' with given maximum stick force and minimum stick force and the guy rope 3 and the 3 ' acting in conjunction that are anchored on the template platform 2 front end arc head.Before suspension rod 4 and 4 ' maximum stick force be according to girder, suspension cable and tripod 1 and 1 ' allowable bearing decide, it in the present embodiment 60t/ root, and minimum stick force be according to guy rope 3 and 3 ' the Suo Li that allows decide, but preceding suspension rod 4 and 4 ' minimum stick force must not be negative value (being pressure) and zero, should have necessarily for (being pulling force), be the 15t/ root in the present embodiment.Guy rope 3 and 3 ' the be outer rope of root one of in the permanent suspension cable of the cable stayed bridge rope arranged side by side.
Fig. 2 is the compound dragging suspension basket tripod of short platform rated figure (is calculating object with single tripod).Tripod 1 is by the lower edge reinforcing beam 19 of rigidity and the boom spare column 20 of putting more energy into, back stay 21, and front tension bar 22 is formed, and is a statically-indeterminate structure system.When finding the solution each component internal force of tripod 1, get column 20 and be redundant force, cut in column 20 bottoms.In fact, the specific practice of column 20 is that its theoretical level is shortened 20mm, so that tripod 1 assembly unit rod member in cantilever position, after each member closes up, promptly in column 20 bottom top liftings, to tripod 1 each member prestressing, thereafter, with backing plate that column 20 bottom jam-packs are also fixing.
Fig. 3 is the compound dragging suspension basket cross-sectional view of short platform.Template platform 2 by tripod 1 and 1 ' preceding suspension rod 4 and 4 ', rear suspension bar 5 and 5 ' hang; In fluid concrete construction, its front end is also by guy rope 3 and 3 ' care for; And in traveling is moved, except that guy rope 3 and 3 ' removing in advance, also remove before suspension rod 4 and 4 ', rear suspension bar 5 and 5 ', change by traveling suspension rod 6 and 6 ', the hook 16 kind 16 ' hang, and respectively along tripod 1 and 1 ' on traveling slideway 23 and 23 ', and girder both sides slideway 24 and 24 ' move.
Fig. 4 is the compound dragging suspension basket template of a short platform platform structure schematic diagram.Template platform 2 is by front beam 9, rear cross beam 10, and guy rope beam 11 and 11 ', suspension rod longeron 12 and 12 ', common longeron 13 that is arranged parallel to each other and the lattice operation platform of being formed with the horizontal trusses 14 of common longeron diagonal cross.In the construction of fluid concrete, on guy rope beam 11 and the 11 ' front end arc head stretch- draw guy rope 3 and 3 '.Guy rope 3 and 3 ' vertical stress component and preceding suspension rod 4 and 4 ' acting in conjunction, block 15 and 15 ' (as Fig. 1) that its horizontal component then is located at safe tail boom 18 and 18 ' top from guy rope beam 11 and 11 ' be passed to by horizontal trusses 14 and shear-pin 17 and 17 ', roof pressure is born by the girder of pouring into a mould sections on the girder boxboard then.Safe tail boom 18 and 18 ', still have to prevent from construction, to cause the too fast excessive effect of template platform 2 declines because of operate miss.Rear cross beam 10 rear sides be provided with in length and breadth to rackwork 25 and 25 ', be to move to the usefulness of transposing behind the new construction location for 2 travelings of template platform.
Fig. 5 is the compound dragging suspension basket tripod of a short platform lower edge reinforcing beam structural representation.Tripod 1 and 1 ' lower edge reinforcing beam 19 and 19 ' be the reinforcing beam of a box section, suspension rod 4 and 4 before supporting thereon ', rear suspension bar 5 and 5 ', traveling suspension rod 6 and 6 ' and the traveling slideway 23 and 23 of bracketed part ', bearing axially stick force and moment of flexure.
Fig. 6 is that the compound dragging suspension basket tripod of short platform traveling suspension rod is arranged schematic diagram (is object with single tripod).After the fluid concrete construction finished, template platform 2 was being hung the girder height (being 3m) that descends by preceding suspension rod 4 and rear suspension bar 5, and at this moment, hook 16 and traveling suspension rod 6 drop on girder slideway 24 respectively and be arranged on the outrigger 26 of newly building the girder front end temporarily.Then, remove preceding suspension rod 4 and rear suspension bar 5.Tripod can move to the new construction location in the place ahead separately 1 this moment.Thereafter, traveling suspension rod 6 is moved on the traveling slideway 23 of tripod lower edge reinforcing beam 19 from outrigger 26.The template platform is hung by hook 16 and traveling suspension rod 6 for 2 this moments, respectively at the traveling slideway 23 enterprising line slips of girder slideway 24 and tripod lower edge reinforcing beam 19, move to the new construction location in the place ahead, combine once more, carry out the construction circulation of next round with the tripod 1 that arrives in advance.
Fig. 7 is the first and guy rope connection schematic diagram (is object with single guy rope) of the compound dragging suspension basket template of short platform platform guy rope beam arc.Guy rope 3 is bound up on by extension bar 28 and spreading cable wire 29 on the arc head 27 of guy rope beam 11, and arc head 27 is the curved support of guy rope 3, is again the whole force structure of guy rope beam 11.Therefore, the section stress of arc head 27 must be analyzed by the garden ring structure.The bottom slab stress of arc head 27 is very big, adopts the 16Mn steel in the present embodiment, and thickness of slab reaches 48mm, bends to radius 3700mm circular arc (radius error is no more than 5mm).In beginning fluid concrete when construction, earlier nut 30 is unclamped, guy rope 3 is carried out fastening nut 31 after the stretch-draw, the Suo Li of guy rope 3 has promptly acted on the arc head 27.Construction finishes after girder hangs up permanent suspension cable, the suspension cable that stretch-draw and guy rope 3 are arranged side by side, and fastening nut 30 can unclamp nut 31, unties spreading cable wire 29 and extension bar 28, and is transferred to new construction location.
Claims (2)
1. compound hauling-rope type Hanging Basket of the working short platform of prestressed concrete cable-stayed bridge, mainly constitute by template platform and guy rope, it is characterized in that: adopt two by beam tripod [1] and [1 '] that lower edge reinforcing beam [19] and [19 '] are arranged that the purlin constitutes of putting more energy into, suspension rod [4] and [4 '] before the lower edge reinforcing beam [19] of tripod [1] and [1 '] and [19 '] upper support, rear suspension bar [5] and [5 '], back anchor pole [7] and [7 '] and traveling suspension rod [6] and [6 '], be provided with walking rails [23] and [23 '] of template platform traveling dolly on the lower cover of the lower edge reinforcing beam [19] of tripod [1] and [1 '] and the bracketed part of [19 '], on the template platform, be provided with guy rope beam [11] and [11 '] that front end has arc head, horizontal trusses [14], suspension rod longeron [12] and [12 '] and the formation safe tail boom [18] and [18 '] that extends back.
2. the compound hauling-rope type Hanging Basket of short platform according to claim 1, it is characterized in that: be arranged on the preceding suspension rod [4] of tripod [1] on [1 '] with [4 '] and rear suspension bar [5] fixedly connected with [12 '] with the suspension rod longeron [12] of template platform with [5 '], guy rope is fixedlyed connected with the guy rope beam [11] of template platform and the arc head of [11 '].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95237394 CN2263134Y (en) | 1995-08-09 | 1995-08-09 | Short platform compound hauling-rope type hanging basket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95237394 CN2263134Y (en) | 1995-08-09 | 1995-08-09 | Short platform compound hauling-rope type hanging basket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2263134Y true CN2263134Y (en) | 1997-09-24 |
Family
ID=33880126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95237394 Expired - Fee Related CN2263134Y (en) | 1995-08-09 | 1995-08-09 | Short platform compound hauling-rope type hanging basket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2263134Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424072B (en) * | 2008-11-18 | 2011-01-19 | 中铁一局集团有限公司 | Counter weight control construction method for large span un-symmetric segment stayed-cable bridge |
| CN102230312A (en) * | 2011-02-28 | 2011-11-02 | 中铁五局（集团）有限公司 | Cable-stayed cradle cambered head |
| CN108193711A (en) * | 2018-01-04 | 2018-06-22 | 云南省建设投资控股集团有限公司 | Pipe gallery crossing river channel construction method and comprehensive pipe gallery structure |
| CN109505267A (en) * | 2018-12-12 | 2019-03-22 | 中建港务建设有限公司 | A kind of Hanging Basket cantilever pouring construction method |
| CN114728662A (en) * | 2019-01-04 | 2022-07-08 | 阿纳托利·爱德华多维奇·尤尼茨基 | Chordal transport system |
-
1995
- 1995-08-09 CN CN 95237394 patent/CN2263134Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424072B (en) * | 2008-11-18 | 2011-01-19 | 中铁一局集团有限公司 | Counter weight control construction method for large span un-symmetric segment stayed-cable bridge |
| CN102230312A (en) * | 2011-02-28 | 2011-11-02 | 中铁五局（集团）有限公司 | Cable-stayed cradle cambered head |
| CN102230312B (en) * | 2011-02-28 | 2012-08-15 | 中铁五局（集团）有限公司 | Cable-stayed cradle cambered head |
| CN108193711A (en) * | 2018-01-04 | 2018-06-22 | 云南省建设投资控股集团有限公司 | Pipe gallery crossing river channel construction method and comprehensive pipe gallery structure |
| CN109505267A (en) * | 2018-12-12 | 2019-03-22 | 中建港务建设有限公司 | A kind of Hanging Basket cantilever pouring construction method |
| CN114728662A (en) * | 2019-01-04 | 2022-07-08 | 阿纳托利·爱德华多维奇·尤尼茨基 | Chordal transport system |
| CN114728662B (en) * | 2019-01-04 | 2023-10-31 | 阿纳托利·爱德华多维奇·尤尼茨基 | String type transport system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |