CN207700026U - Space steel mesh arch bridge hyperboloid subtracts vibration-isolating system arrangement - Google Patents
Space steel mesh arch bridge hyperboloid subtracts vibration-isolating system arrangement Download PDFInfo
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- CN207700026U CN207700026U CN201820188831.XU CN201820188831U CN207700026U CN 207700026 U CN207700026 U CN 207700026U CN 201820188831 U CN201820188831 U CN 201820188831U CN 207700026 U CN207700026 U CN 207700026U
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Abstract
The utility model is related to a kind of space steel mesh arch bridge hyperboloids to subtract vibration-isolating system arrangement, including steel mesh main arch, arch box arch springing, foot steel casting, and arch springing steel casting is connect by three end bay diagonal braces with steel girder respectively；Sunpender is connected between steel mesh main arch and steel girder；2 hyperboloid spherical shape vibration absorption and isolation supports are set below arch springing steel casting, and hyperboloid spherical shape vibration absorption and isolation support is mounted on main pier pier top；Vertical pull rod, pull rod and steel main beam pivot are set between end bay diagonal brace and abutment pier on steel girder；Pull rod lower end is connect with gravity type tension basis；At abutment pier bearing 2 dampers are respectively set along both direction in length and breadth.The technical solution of antidetonation is cooperateed with damper with viscosity using above-mentioned hyperboloid spherical shape vibration absorption and isolation support, hyperboloid spherical shape vibration absorption and isolation support reduces the horizontal thrust of steel mesh arch bridge under geological process, damper with viscosity reduces the horizontal displacement of steel mesh arch bridge under geological process, reduce the design difficulty at arch bridge expansion joint and the difficulty of falling-off prevention measures, project cost, remarkable in economical benefits are saved.
Description
Technical field
The utility model belongs to bridge technology field, subtracts vibration-isolating system more particularly to a kind of space steel mesh arch bridge hyperboloid
Arrangement.
Background technology
Currently, in bridge construction, the antidetonation of bridge is the bridge major issue to be considered.From in May, 2008 Wenchuan
Since shake, the antidetonation of building structure causes the great attention of engineering circles.2008 Nian8Yue29 Ministry of Communications issue professional standard
《Seismic Design of Highway Bridges detailed rules and regulations》JTG/T B02-01-2008；On May 31st, 2010, the Ministry of Construction issued national standard《Building
Earthquake resistant design code》GB 50011-2010；On July 13rd, 2011, the Ministry of Construction issued professional standard《Urban Bridge shake design rule
Model》CJJ 166-2011.Seismic design provision in building code had just been revised 2001, and the revision of specification was less than 10 years twice, from this
It can be seen that attention of the engineering circles to building structure aseismatic.
《Seismic Design of Highway Bridges detailed rules and regulations》It points out：Cable-stayed bridge, suspension bridge, single span across footpath are more than the beam bridge and arch bridge of 150m
For special bridge, for special bridge, Aseismic Design should carry out particular study, by relation to special regulation execution.《City
Bridge shakes design specification》It points out：The arch bridge of cable-stayed bridge, suspension bridge, single span across footpath more than 150m is Class A bridge, for Class A bridge
Beam can be designed by the antidetonation principle that specification provides.In Areas of High Earthquake Intensity area, long-span arch bridge is horizontal under geological process
Power is huge, and the design of bridge infrastructure is key technical problem, the especially design of soft clay area highlight lines long-span arch bridge, meeting
Greatly increase the cost of lower part engineering.
Invention content
The utility model provides a kind of highlight lines area soft soil foundation to solve technical problem present in known technology
Upper large span steel mesh arch bridge subtracts the arrangement of vibration-isolating system, reduces the horizontal earthquake counter-force of infrastructure under geological process, realizes
The design of long-span arch bridge infrastructure on soft soil foundation, and further decrease the space steel mesh arch bridge hyperboloid of project cost
Subtract vibration-isolating system arrangement.
The utility model is adopted the technical scheme that solve technical problem present in known technology：
A kind of space steel mesh arch bridge hyperboloid subtracts vibration-isolating system arrangement, including the casting of steel mesh main arch, arch springing arch box, arch springing
Steel part, end bay diagonal brace, steel girder, sunpender, abutment pier bearing, main pier, abutment pier；It is characterized in that：The arch at steel mesh main arch both ends
Case arch springing connects arch springing steel casting, and the arch springing steel casting is connect by three end bay diagonal braces with steel girder respectively；The steel mesh
Sunpender is connected between main arch and steel girder；
For 2 hyperboloid spherical shape vibration absorption and isolation supports are arranged in cross-bridges direction under the arch springing steel casting, hyperboloid spherical shape subtracts
Shock isolating pedestal is mounted on main pier pier top；
Vertical pull rod, upper end and the steel main beam pivot of pull rod are set between end bay diagonal brace and abutment pier on steel girder；It draws
The lower end of bar is connect with gravity type tension basis；At the abutment pier bearing 2 dampers are respectively set along both direction in length and breadth.
The utility model can also use following technical measures：
The pull rod uses box section structure.
The end bay diagonal brace uses the spacial special-shaped case section structure of gradual change, small structure under presenting greatly.
The utility model has the advantages and positive effects of：The utility model in large span space steel mesh arch bridge by encircleing
Arch springing hyperboloid vibration absorption and isolation support is arranged at foot, reduces the horizontal force of steel mesh arch bridge under geological process, by large span sky
Between steel mesh arch bridge connection Dun Chu arrange damper, reduce the horizontal displacement of steel mesh arch bridge under geological process, reduce arch bridge and stretch
The difficulty for the design difficulty and falling-off prevention measures stitched of contracting, has saved project cost, remarkable in economical benefits.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the portions I enlarged drawing in Fig. 1.
In figure：1, steel mesh main arch；2, arch springing arch box；3, arch springing steel-casting；4, end bay diagonal brace；5, steel girder；6, pull rod；7、
Sunpender；8, hyperboloid vibration absorption and isolation support；9, abutment pier indulges bridge to damper；10, abutment pier direction across bridge damper；11, abutment pier bearing；
12, main pier；13, abutment pier.
Specific implementation mode
For that can further appreciate that the invention, features and effects of the utility model, the following examples are hereby given, and coordinates
Detailed description are as follows for attached drawing：
It please refers to Fig.1 and Fig. 2, a kind of space steel mesh arch bridge hyperboloid subtracts vibration-isolating system arrangement, including steel mesh main arch
1, arch springing arch box 2, arch springing steel-casting 3, end bay diagonal brace 4, steel girder 5, sunpender 7, main pier 8, abutment pier 13；1 liang of the steel mesh main arch
The arch box arch springing 2 at end connects arch springing steel casting 3, is corresponded at pier position in arch springing arch box 2, to make the part of horizontal thrust of arch springing arch box
It is transmitted to steel girder 5, the arch springing steel casting 3 is connect by three end bay diagonal braces 4 with steel girder 5 respectively, the end bay diagonal brace 4
Using the spacial special-shaped case section structure of gradual change, small structure under presenting greatly；It connects and hangs between the steel mesh main arch 1 and steel girder 5
Bar 7；Two hyperboloid spherical shape vibration absorption and isolation supports 8, hyperbolic is bolted in cross-bridges direction in the lower section of the arch springing steel casting 3
Face spherical shape vibration absorption and isolation support is mounted in main pier pier top, and hyperboloid spherical shape vibration absorption and isolation support can significantly reduce the level that bridge is subject to
Seismic force；To reduce the moment of flexure of end bay diagonal brace top position steel girder, the upper setting of steel girder is perpendicular between end bay diagonal brace and abutment pier
To pull rod 6, pull rod uses box section structure；The upper end of pull rod is hinged with pre-embedded steel slab in steel girder basis, for bearing
Axial tension and pressure；Both direction is equipped with the vertical bridge of abutment pier to damper 9 and side to 11 upper edge of abutment pier bearing of the abutment pier in length and breadth
Pier direction across bridge damper 10, two dampers can be effectively reduced horizontal displacement of the bridge in geological process, while absorb ground
Shake energy mitigates destruction of the earthquake to bridge structure.
The utility model is reduced by arranging arch springing hyperboloid vibration absorption and isolation support at large span space steel mesh arch bridge arch springing
The horizontal force of steel mesh arch bridge under geological process is arranged damper by connecting Dun Chu in large span space steel mesh arch bridge, is reduced
The horizontal displacement of steel mesh arch bridge, reduces the design difficulty at arch bridge expansion joint and the difficulty of falling-off prevention measures under geological process,
Project cost, remarkable in economical benefits are saved.
The above is only the preferred embodiment to the utility model, is not made in any form to the utility model
Limitation, it is every according to the technical essence of the utility model any simple modification made to the above embodiment, equivalent variations with
Modification, is all within the scope of the technical scheme of the utility model.
Claims (3)
1. a kind of space steel mesh arch bridge hyperboloid subtracts vibration-isolating system arrangement, including steel mesh main arch, arch springing arch box, arch springing cast steel
Part, end bay diagonal brace, steel girder, sunpender, abutment pier bearing, main pier, abutment pier；It is characterized in that：The arch box at steel mesh main arch both ends
Arch springing connects arch springing steel casting, and the arch springing steel casting is connect by three end bay diagonal braces with steel girder respectively；The steel mesh master
Sunpender is connected between arch and steel girder；
2 hyperboloid spherical shape vibration absorption and isolation supports are set in cross-bridges direction below the arch springing steel casting, hyperboloid spherical shape subtracts shock insulation
Bearing is mounted on main pier pier top；
Vertical pull rod, upper end and the steel main beam pivot of pull rod are set between end bay diagonal brace and abutment pier on steel girder；Pull rod
Lower end is connect with gravity type tension basis；At the abutment pier bearing 2 dampers are respectively set along both direction in length and breadth.
2. steel mesh arch bridge hyperboloid in space according to claim 1 subtracts vibration-isolating system arrangement, it is characterised in that：It is described
Pull rod uses box section structure.
3. steel mesh arch bridge hyperboloid in space according to claim 1 subtracts vibration-isolating system arrangement, it is characterised in that：It is described
End bay diagonal brace uses the spacial special-shaped case section structure of gradual change, small structure under presenting greatly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820188831.XU CN207700026U (en) | 2018-02-02 | 2018-02-02 | Space steel mesh arch bridge hyperboloid subtracts vibration-isolating system arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820188831.XU CN207700026U (en) | 2018-02-02 | 2018-02-02 | Space steel mesh arch bridge hyperboloid subtracts vibration-isolating system arrangement |
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| Publication Number | Publication Date |
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| CN207700026U true CN207700026U (en) | 2018-08-07 |
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| CN201820188831.XU Active CN207700026U (en) | 2018-02-02 | 2018-02-02 | Space steel mesh arch bridge hyperboloid subtracts vibration-isolating system arrangement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853353A (en) * | 2019-03-20 | 2019-06-07 | 广州市市政工程设计研究总院有限公司 | A kind of spacial special-shaped arch bridge and its construction method |
-
2018
- 2018-02-02 CN CN201820188831.XU patent/CN207700026U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853353A (en) * | 2019-03-20 | 2019-06-07 | 广州市市政工程设计研究总院有限公司 | A kind of spacial special-shaped arch bridge and its construction method |
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