CN208649915U - A kind of double free cantilever erection equipment of steel truss girder - Google Patents
A kind of double free cantilever erection equipment of steel truss girder Download PDFInfo
- Publication number
- CN208649915U CN208649915U CN201721262719.8U CN201721262719U CN208649915U CN 208649915 U CN208649915 U CN 208649915U CN 201721262719 U CN201721262719 U CN 201721262719U CN 208649915 U CN208649915 U CN 208649915U
- Authority
- CN
- China
- Prior art keywords
- steel
- girder
- internode
- starting
- tower crane
- 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
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a kind of double free cantilever erection equipment of steel truss girder, are related to science of bridge building field, including bridge pier, bracket, starting internode girder steel and tower crane, and starting internode girder steel is set to bridge pier and cradle top, and tower crane is arranged in inside starting internode steel girder frame.The utility model can be substantially reduced tower crane and hang width and elevating capacity requirement, reduce construction risk, and obtain significant economic benefit in smaller all standing of the realization to pier top region steel truss girder starting internode under hanging web state.
Description
Technical field
The double cantilevers of bracket progress are set up in girder steel the utility model relates to science of bridge building field, in particular to one kind symmetrically to spell
Equipment arragement construction during dress.
Background technique
Girder steel symmetric double free cantilever erection construction technology is widely used in current bridge construction field, and general construction method is,
Pier top starting internode (two internodes or four internode girder steels) is lifted into branch by equipment such as tower crane, crane barges by the mounting bracket by pier
Carry out assembled on frame, then, girder steel is toward both direction symmetric double free cantilever erection.
Internode is originated for pier top girder steel, in the case where depth condition has, it is contemplated that directly lift using crane barge.But
, crane barge unapproachable region insufficient for land-based area area or depth condition, or because pier shaft height is larger, crane barge installation is obvious not
Daylight saving time, the method installed frequently with tower crane.
In conventional method, tower crane is typically disposed in outside Steel truss structure, and general setting and girder steel direction across bridge side, at this
Under arrangement states, tower crane need it is biggish hang width could by pier top region originate all standing of internode girder steel, thus need using compared with
The tower crane of big elevating capacity, it is less economical.
Utility model content
The purpose of this utility model is that: in view of the deficienciess of the prior art, proposing a kind of double free cantilever erections of steel truss girder
Equipment arragement construction can be substantially reduced in smaller all standing of the realization to pier top region steel truss girder starting internode under hanging web state
Tower crane hangs width and elevating capacity requirement, reduces construction risk, and obtain significant economic benefit.
The purpose of this utility model is realized by following technical proposals:
A kind of double free cantilever erection equipment of steel truss girder, including bridge pier, bracket, starting internode girder steel, tower crane and steel girder erection are made
Industry face, bridge pier and bracket are fixed in steel girder erection work surface, and starting internode girder steel is set to bridge pier and cradle top, tower crane arrangement
Inside starting internode steel girder frame, the tower body bottom of tower crane is fixed in steel girder erection work surface, and the tower body of tower crane is through bracket
Inside is stretched out inside starting internode steel girder frame, and the crane arm of tower crane is located above starting internode girder steel.
The aforementioned main scheme of the utility model and its each further selection scheme can be freely combined to form multiple schemes,
It can be used for the utility model and claimed scheme；And the utility model, (each non conflicting selection) selection between and
It can also be freely combined between other selections.Those skilled in the art are after understanding the present invention program according to the prior art and public affairs
Know that common sense can be illustrated there are many combination, is the claimed technical solution of the utility model, does not do exhaustion herein.
The utility model has the beneficial effects that the characteristics of the utility model utilizes Steel truss structure to be frame structure, utilizes steel
The space layout tower crane of trusses lower portion can be realized under web state in smaller hang to the complete of pier top region steel truss girder starting internode
Covering is substantially reduced tower crane and hangs width and elevating capacity requirement, reduces construction risk, and obtain significant economic benefit.
Detailed description of the invention
Fig. 1 is the schematic view of facade structure of the utility model embodiment；
Fig. 2 is the planar structure schematic diagram of the utility model embodiment；
In figure, 1 is bridge pier, and 2 be bracket, and 3 be starting internode girder steel, and 4 be tower crane, and 42 be tower body, and 41 be crane arm.
Specific embodiment
The utility model is further described with attached drawing combined with specific embodiments below.
By taking 112m at certain bridge pier is across steel girder erection as an example, steel truss girder is three main truss structures, and 10 are often arranged altogether across girder steel
A internode, steel truss girder transverse direction main truss center spacing are 14.5m, and longitudinal crossbeam spacing is 10.8m or 11m, during steel truss girder is assembled,
The frame structure formed by lateral three pieces main truss and longitudinal crossbeam is formed, lower portion is open space.
Because the pier is located at reclaimed land area, large-scale floating crane can not enter interior, construction period, one girder steel of setting at the bridge pier
Work surface is set up, bracket is set by pier, four internodes of pier top are lifted to progress assembly on bracket by tower crane and utilized thereafter
Tower crane is set a roof beam in place in the installation of four internode girder steel top surface of pier top with erection crane, from erection crane toward two sides symmetric double free cantilever erection remaining
Internode steel truss girder.
For tower crane arrangement, according to conventional method, tower crane is arranged on the outside of steel truss girder, then farthest rod piece is hung away from reaching
42.5m calculates according to about 30 tons of weight, needs 1300 tons of above tower cranes of rice of elevating capacity.
In work progress, innovation is arranged in scheme in steel truss girder frame cavity using by tower crane:
With reference to shown in Fig. 1,2, a kind of double free cantilever erection equipment arragement constructions of steel truss girder, including bridge pier 1, bracket 2, starting section
Between girder steel 3 and tower crane 4, starting internode girder steel 3 is set to bridge pier 1 and the top of bracket 2, and tower crane 4 is arranged in starting 3 frame of internode girder steel
It is internal.Through stretching out inside bracket 2 from starting 3 lower portion of internode girder steel, the crane arm 41 of tower crane 4 is located at the tower body 42 of tower crane 4
Originate 3 top of internode girder steel.
The program is actually farthest hung away from 35m, can meet construction demand using 1050 tons of above tower cranes of rice, when practice of construction
Using 1100 tons of rice tower cranes, steel truss erection task is completed safely, high-quality.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (1)
1. a kind of double free cantilever erection equipment of steel truss girder, it is characterised in that: including bridge pier, bracket, starting internode girder steel, tower crane and steel
Erection work surface, bridge pier and bracket are fixed in steel girder erection work surface, and starting internode girder steel is set to bridge pier and cradle top,
Tower crane is arranged in inside starting internode steel girder frame, and the tower body bottom of tower crane is fixed in steel girder erection work surface, the tower of tower crane
Body stretches out inside starting internode steel girder frame through internal stent, and the crane arm of tower crane is located above starting internode girder steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721262719.8U CN208649915U (en) | 2017-09-28 | 2017-09-28 | A kind of double free cantilever erection equipment of steel truss girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721262719.8U CN208649915U (en) | 2017-09-28 | 2017-09-28 | A kind of double free cantilever erection equipment of steel truss girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208649915U true CN208649915U (en) | 2019-03-26 |
Family
ID=65768817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721262719.8U Expired - Fee Related CN208649915U (en) | 2017-09-28 | 2017-09-28 | A kind of double free cantilever erection equipment of steel truss girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208649915U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447684A (en) * | 2017-09-28 | 2017-12-08 | 中交二航局第四工程有限公司 | A kind of double free cantilever erection equipment arrangements of steel truss girder |
-
2017
- 2017-09-28 CN CN201721262719.8U patent/CN208649915U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447684A (en) * | 2017-09-28 | 2017-12-08 | 中交二航局第四工程有限公司 | A kind of double free cantilever erection equipment arrangements of steel truss girder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107700360B (en) | A kind of assembling method of truss bridge section | |
| CN106522101A (en) | Construction method of superlong cable beam-free sections of cable-stayed bridge | |
| CN202658590U (en) | Integral assembled drilling platform | |
| CN208649915U (en) | A kind of double free cantilever erection equipment of steel truss girder | |
| CN106193284B (en) | The installation method and mounting structure of large span space drop level continuous truss frame | |
| CN105040591A (en) | Positioning device for waveform steel web and positioning method thereof | |
| CN106592446A (en) | Assembling construction method of precast segmental balanced cantilever with side-span wet joints | |
| CN206693061U (en) | A kind of hoisting device for main cable saddle of suspension bridge lifting | |
| CN109594554A (en) | Steel reinforcement cage for marine drilling pile grouting hangs system | |
| CN203238646U (en) | Casing box with built-in bottom board | |
| CN203187288U (en) | Box girder hanger | |
| CN206233120U (en) | Folding shape steel web continuous box girder jenny mould bases cantilever structure | |
| CN209260578U (en) | Longitudinal temporary connecting structure of suspension bridge concrete stiffening girder installation | |
| CN107447684A (en) | A kind of double free cantilever erection equipment arrangements of steel truss girder | |
| CN205114881U (en) | Gantry crane for shipbuilding | |
| CN109371848A (en) | The longitudinal temporary connecting structure and method of suspension bridge concrete stiffening girder installation | |
| CN104790300A (en) | Flexible pier-side girder erecting platform and construction method thereof | |
| CN106481967B (en) | A kind of installation method of rubber diaphragm gas chamber | |
| CN104085832A (en) | Flexible component lifting device and lifting method thereof | |
| CN201128882Y (en) | Lifting and supporting brackets integrated construction device for bridge arch rib | |
| CN206070380U (en) | A kind of device that can improve bottom concrete bearing capacity | |
| CN106522234B (en) | A kind of the underwater grouting formwork structure and its construction method of pole section increasing | |
| CN208870038U (en) | The suspension system of steel sheet-pile cofferdam | |
| CN205617565U (en) | Upper assembling type steel corbel of thermal power factory structure | |
| CN204873511U (en) | Embedded trolley frame of two roof beam hoists |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190326 Termination date: 20210928 |