CN208803366U - A kind of rotor sections oblique pull steel truss girder bridge - Google Patents
A kind of rotor sections oblique pull steel truss girder bridge Download PDFInfo
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- CN208803366U CN208803366U CN201821212932.2U CN201821212932U CN208803366U CN 208803366 U CN208803366 U CN 208803366U CN 201821212932 U CN201821212932 U CN 201821212932U CN 208803366 U CN208803366 U CN 208803366U
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Abstract
The utility model discloses a kind of rotor sections oblique pull steel truss girder bridges, including girder, the direction across bridge two sides of the girder are provided with along the main truss along bridge to extension, pass through suspension cable to several bridge towers, the two sides of the bridge tower are arranged at intervals with along bridge on the main truss and connect with ipsilateral main truss is located at；The bottom of the girder is provided with main pier, is provided with pier top revolving member between the top of the main pier and the bottom of girder.Design has main truss and bridge tower on the girder of the utility model rotor sections oblique pull steel truss girder bridge, and the rigidity of structure is big, can meet requirement of the high-speed railway to rigidity, it constructs also very convenient, the duration can be greatlyd save, and compared with Xtah Crude Clay structure, main truss it is light-weight, reduce to both wired influence.
Description
Technical field
The utility model belongs to the technical field of steel truss girder bridge, and in particular to a kind of rotor sections oblique pull steel truss girder bridge.
Background technique
Steel truss girder bridge is the structure type by the steel plate girder bridge of real abdomen according to certain regular empty stomachization, and structure is beam on the whole
Force way, that is, be primarily subjected to the structure of moment of flexure and shearing.In actual engineering construction, some spans are larger, traffic lines
The construction environment that road is more concentrated mostly uses the construction method of multi-joint multispan continuous steel girder bridge, and structure of main bridge generally mostly uses
The truss form that parallel chords or lower edge are got higher.
In the prior art, one kind is disclosed application No. is the Chinese invention patent of CN201711391073.8 be suitable for high pier
Longspan steel truss girder bridge push construction method installs non-bearing bracket, pier top pad to two sides the following steps are included: indulging bridge in pier top
Sliding surface is laid within the scope of stone, level jack, vertical jack, joist, conversion beam are placed in installation, and steel pad is arranged in joist both ends
Block is to support steel truss girder, and steel truss girder is supported on the steel cushion block of joist both ends, and joist one end is supported on pier top, and the other end is supported on
Roller trolley is arranged on non-bearing bracket in non-bearing bracket, to facilitate joist to slide in bracket top surface；Start level jack,
Joist is dragged, steel truss girder pushing tow forward is driven, conversion beam is pushed into steel truss girder connection along direction across bridge after by one internode of pushing tow
Lower section, and be supported on above vertical jack, start vertical jack top lifting steel truss girder；Joist is dragged using level jack
It returns, continues subsequent cycle incremental launching construction.Although the pushing tow of high-block bridge degree steel truss girder bridge may be implemented in above-mentioned technical proposal
Construction, but need to install interim nose girder, or temporary support leg is set in span centre, this adversely affects both Wired Securities.
Existing cross-line bridge uses concrete structure mostly, and in order to meet the requirement to rigidity, structure size is made larger, swivel weight
Amount is very big, this brings very detrimental effect to landscape and construction.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of rigidity of structure to solve deficiency existing for above-mentioned background technique
Greatly, rotor sections oblique pull steel truss girder bridge easy for construction.
A kind of in order to achieve the above purposes, the technical solution adopted by the utility model is: rotor sections oblique pull steel truss girder bridge, packet
Girder is included, the direction across bridge two sides of the girder are provided with to be set along bridge to interval along the main truss along bridge to extension, the main truss
Several bridge towers are equipped with, the two sides of the bridge tower pass through suspension cable and connect with ipsilateral main truss is located at；The bottom of the girder
It is provided with main pier at the underface of bridge tower, pier top rotation structure is provided between the top of the main pier and the bottom of girder
Part.
Preferably, the girder includes top plate, and the lower section of the top plate is set between the main truss of two sides
It is equipped with several and to spaced apart crossbeam, has poured concrete layer on the top plate along bridge.
Preferably, several are provided on the top plate along the spaced apart longitudinal rib of direction across bridge.
Preferably, the vertical bridge of the girder is provided with abutment pier, the abutment pier and main pier to both ends bottom
Between be additionally provided with and the auxiliary pier of the fixed support connection in girder bottom.
Preferably, the bottom of the main pier, abutment pier and auxiliary pier is provided with cushion cap, the cushion cap
Lower section be provided with pile foundation.
Preferably, the bridge tower includes the first king-post and the second king-post along direction across bridge arrangement, described
The bottom of first king-post and the second king-post is fixedly connected at the top of ipsilateral main truss respectively, first king-post and second
Several horizontal-associates are provided between king-post.
Preferably, the top of first king-post and the second king-post is provided with for anchoring suspension cable
Anchorage.
Preferably, the pier top revolving member includes top rotary table and lower rotary table, the top of the top rotary table
Portion is fixedly connected with the bottom of girder, is fixedly connected at the top of the bottom of the lower rotary table and main pier, the top of the lower rotary table
It is provided with flexural pivot cushion cap, steel ball hinge is provided between the flexural pivot cushion cap and top rotary table.
Preferably, several support columns are additionally provided between the top rotary table and lower rotary table.
The beneficial effects of the utility model are:
First, design has main truss and bridge tower, the rigidity of structure on the girder of the utility model rotor sections oblique pull steel truss girder bridge
Greatly, can meet requirement of the high-speed railway to rigidity, construct also very convenient, can greatly save the duration, and with Xtah Crude Clay structure phase
It is more light-weight than, main truss, it reduces to both wired influence, reference well is provided to cross-line Bridge Design, especially for high speed
Railroad bridge has good popularization and application foreground.
Second, the girder bridge floor of the utility model uses longitudinal rib overhead steel concrete combined bridge front panel, by top plate, cross
Beam, longitudinal rib and concrete layer composition, longitudinal rib are located above floorings, and structure is slim and graceful, and segment cantilever or bracket assembly are very convenient,
Floorings are installed after the completion of swivel, can mitigate swivel weight significantly.
Third, the bridge tower of the utility model can crouch, vertical transfer after spelling, can reduce swivel weight, and bridge type it is handsome in appearance,
It designs reasonable, easy for construction.
Detailed description of the invention
Fig. 1 be the utility model rotor sections oblique pull steel truss girder bridge along bridge to structural schematic diagram；
Fig. 2 is schematic cross-sectional view of Fig. 1 middle girder along direction across bridge；
Fig. 3 is bridge tower in Fig. 1 along the structural schematic diagram of direction across bridge；
Fig. 4 is pier top revolving member in Fig. 1 along the structural schematic diagram of direction across bridge；
In figure: 1- girder, 1.1- top plate, 1.2- crossbeam, 1.3- concrete layer, 1.4- longitudinal rib, 2- main truss, 3- bridge tower,
The first king-post of 3.1-, the second king-post of 3.2-, 3.3- horizontal-associate, 3.4- anchorage, 4- suspension cable, the main pier of 5-, 6- pier top revolving member,
6.1- top rotary table, 6.2- lower rotary table, 6.3- flexural pivot cushion cap, 6.4- steel ball hinge, 6.5- support column, 7- abutment pier, 8- auxiliary pier, 9- are held
Platform, 10- pile foundation.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, convenient for being well understood
The utility model, but they do not constitute the utility model and limit.
As shown in Figure 1 includes girder 1, and the direction across bridge two sides of girder 1 are provided with along main truss 2 of the bridge to extension, main truss 2
On along bridge, to two bridge towers 3 are arranged at intervals with, the two sides of bridge tower 3 pass through suspension cable 4 and connect with positioned at ipsilateral main truss 2；
The bottom of girder 1, which is located at the underface of bridge tower 3, is provided with main pier 5, is provided between the top of main pier 5 and the bottom of girder 1
Pier top revolving member 6.The vertical bridge of girder 1 is provided with abutment pier 7 to both ends bottom, is additionally provided between abutment pier 7 and main pier 5 and girder
The auxiliary pier 8 that 1 bottom is fixedly connected.The bottom of main pier 5, abutment pier 7 and auxiliary pier 8 is provided with cushion cap 9, the lower section of cushion cap 9
It is provided with pile foundation 10.Design has main truss 2 and bridge tower 3 on girder 1, and the rigidity of structure is big, can meet high-speed railway and want to rigidity
Ask, construct it is also very convenient, the duration can be greatlyd save, and compared with Xtah Crude Clay structure, main truss 2 it is light-weight, it is possible to reduce it is right
Both wired influence.
As shown in Fig. 2, girder 1 includes top plate 1.1, the lower section of top plate 1.1 is provided with several between two sides main truss 2
To spaced apart crossbeam 1.2, concrete layer 1.3 has been poured on top plate 1.1 along bridge.Several edges are provided on top plate 1.1
The spaced apart longitudinal rib 1.4 of direction across bridge.Girder uses longitudinal rib overhead steel concrete combined bridge front panel, by top plate, crossbeam, indulges
Rib and concrete layer composition, longitudinal rib are located above floorings, and structure is slim and graceful, and segment cantilever or bracket assembly are very convenient, bridge floor
Plate is installed after the completion of swivel, can mitigate swivel weight significantly.
As shown in figure 3, bridge tower 3 includes the first king-post 3.1 and the second king-post 3.2 along direction across bridge arrangement, the first king-post 3.1
It is fixedly connected respectively with the top for being located at ipsilateral main truss 2 with the bottom of the second king-post 3.2, the first king-post 3.1 and the second king-post
Several horizontal-associates 3.3 are provided between 3.2.The top of first king-post 3.1 and the second king-post 3.2 is provided with for anchoring suspension cable
4 anchorage 3.4.Bridge tower 3 can crouch vertical transfer after spelling, can reduce swivel weight, and bridge type is handsome in appearance, design rationally, apply
Work is convenient.
As shown in figure 4, pier top revolving member 6 includes top rotary table 6.1 and lower rotary table 6.2, the top of top rotary table 6.1 and girder
1 bottom is fixedly connected, and the bottom of lower rotary table 6.2 is fixedly connected with the top of main pier 5, and the top of lower rotary table 6.2 is provided with ball
Cushion cap 6.3 is cut with scissors, steel ball hinge 6.4 is provided between flexural pivot cushion cap 6.3 and top rotary table 6.1.Between top rotary table 6.1 and lower rotary table 6.2
It is additionally provided with several support columns 6.5.
The construction method of the utility model: main pier 5 of first constructing, abutment pier 7, auxiliary pier 8 and its corresponding cushion cap 9 and pile foundation
10, then pier top revolving member 6 is installed in main 5 pier top of pier, the assembled close main pier on the road or bridge being spanned, bracket
2 segment of main truss, then on main truss 2 crouch spell bridge tower 3, by loop wheel machine or cable traction, by 3 vertical transfer of bridge tower to position, then along by across
Other segments of road or bridge direction cantilever main truss 2 more, and suspension cable 4 is cooperated to assist cantilever, pass through pier top revolving member 6
Main truss is rotated at bridge location, using Window time closure main truss Middle span closing section, then girder 1 is installed on main truss, finally applies
Work bridge floor affiliated facility Cheng Qiao.Wherein, the specific embodiment of pier top revolving member 6: steel ball hinge 6.4 is mounted on flexural pivot cushion cap
In 6.3, flexural pivot cushion cap 6.3 is connect with the lower rotary table 6.2 of pier top, and top rotary table 6.1 is connect with girder 1, and 12 support columns 6.4 are located at
Between upper lower rotary table, by being located at the traction reaction support and hauling rope of pier top, top rotary table 6.1 is rotated, main truss 2 is rotated centainly
Closure span centre section after angle to the position of design releases the temporary locking of steel ball hinge and support column, then in very useful very heavy jack-up
Beam body installs permanent support, unscrews and connects bolt between flexural pivot top and crossbeam, removes support column and falls beam, makes permanent Bearing Seat Force,
Slideway and supporting leg are removed again, and full beam swivel is completed.
More than, only specific embodiment of the present utility model, it is noted that it is existing skill that remaining is unspecified
Art, anyone skilled in the art is in the technical scope disclosed by the utility model, the variation that can readily occur in or
Replacement, should be covered within the scope of the utility model.
Claims (9)
1. a kind of rotor sections oblique pull steel truss girder bridge, it is characterised in that: including girder (1), the direction across bridge two sides of the girder (1)
Be provided with along the main truss (2) along bridge to extension, along the main truss (2) along bridge to being arranged at intervals with several bridge towers (3), it is described
The two sides of bridge tower (3) pass through suspension cable (4) and connect with ipsilateral main truss (2) is located at；The bottom of the girder (1) is located at bridge tower
(3) it is provided at underface main pier (5), pier top rotation is provided between the top of the main pier (5) and the bottom of girder (1)
Component (6).
2. rotor sections oblique pull steel truss girder bridge according to claim 1, it is characterised in that: the girder (1) includes top plate
(1.1), the lower section of the top plate (1.1) be located between two sides main truss (2) be provided with several along bridge to spaced apart cross
Beam (1.2) has poured concrete layer (1.3) on the top plate (1.1).
3. rotor sections oblique pull steel truss girder bridge according to claim 2, it is characterised in that: be arranged on the top plate (1.1)
There are several along the spaced apart longitudinal rib of direction across bridge (1.4).
4. rotor sections oblique pull steel truss girder bridge according to claim 1 or 2 or 3, it is characterised in that: the girder (1)
Vertical bridge is provided with abutment pier (7) to both ends bottom, is additionally provided between the abutment pier (7) and main pier (5) and is supported with girder (1) bottom
The auxiliary pier (8) of connection.
5. rotor sections oblique pull steel truss girder bridge according to claim 4, it is characterised in that: the main pier (5), abutment pier (7)
And the bottom of auxiliary pier (8) is provided with cushion cap (9), is provided with pile foundation (10) below the cushion cap (9).
6. rotor sections oblique pull steel truss girder bridge according to claim 1 or 2 or 3, it is characterised in that: bridge tower (3) packet
Include the first king-post (3.1) and the second king-post (3.2) along direction across bridge arrangement, first king-post (3.1) and the second king-post (3.2)
Bottom respectively be located at ipsilateral main truss (2) at the top of be fixedly connected, first king-post (3.1) and the second king-post (3.2)
Between be provided with several horizontal-associates (3.3).
7. rotor sections oblique pull steel truss girder bridge according to claim 6, it is characterised in that: first king-post (3.1) and
The top of second king-post (3.2) is provided with the anchorage (3.4) for anchoring suspension cable (4).
8. rotor sections oblique pull steel truss girder bridge according to claim 1 or 2 or 3, it is characterised in that: the pier top rotates structure
Part (6) includes top rotary table (6.1) and lower rotary table (6.2), the fixed company in the top of the top rotary table (6.1) and the bottom of girder (1)
It connects, is fixedly connected at the top of the bottom and main pier (5) of the lower rotary table (6.2), is provided with ball at the top of the lower rotary table (6.2)
It cuts with scissors cushion cap (6.3), steel ball hinge (6.4) is provided between the flexural pivot cushion cap (6.3) and top rotary table (6.1).
9. rotor sections oblique pull steel truss girder bridge according to claim 8, it is characterised in that: the top rotary table (6.1) is under
Several support columns (6.5) are additionally provided between turntable (6.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821212932.2U CN208803366U (en) | 2018-07-27 | 2018-07-27 | A kind of rotor sections oblique pull steel truss girder bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821212932.2U CN208803366U (en) | 2018-07-27 | 2018-07-27 | A kind of rotor sections oblique pull steel truss girder bridge |
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| Publication Number | Publication Date |
|---|---|
| CN208803366U true CN208803366U (en) | 2019-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821212932.2U Active CN208803366U (en) | 2018-07-27 | 2018-07-27 | A kind of rotor sections oblique pull steel truss girder bridge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111926714A (en) * | 2020-08-19 | 2020-11-13 | 中交路桥华南工程有限公司 | Installation method of steel truss girder bridge |
| CN112064518A (en) * | 2020-08-21 | 2020-12-11 | 温州融宸科技有限公司 | Bridge pier combination swivel support |
-
2018
- 2018-07-27 CN CN201821212932.2U patent/CN208803366U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111926714A (en) * | 2020-08-19 | 2020-11-13 | 中交路桥华南工程有限公司 | Installation method of steel truss girder bridge |
| CN112064518A (en) * | 2020-08-21 | 2020-12-11 | 温州融宸科技有限公司 | Bridge pier combination swivel support |
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