CN218263427U - Cable-stayed bridge supporting and restraining system considering multipoint seismic oscillation - Google Patents
Cable-stayed bridge supporting and restraining system considering multipoint seismic oscillation Download PDFInfo
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- CN218263427U CN218263427U CN202221559460.4U CN202221559460U CN218263427U CN 218263427 U CN218263427 U CN 218263427U CN 202221559460 U CN202221559460 U CN 202221559460U CN 218263427 U CN218263427 U CN 218263427U
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Abstract
The utility model discloses a cable-stay bridge supporting and restraint system of considering multiple spot ground vibrations relates to bridge technical field. The device comprises a fusing damper, a viscous damper, a wind-resistant support and a spherical steel support; the fusing damper and the viscous damper are respectively positioned on two sides of a main tower of the cable-stayed bridge, one side of the fusing damper is hinged with the main tower, and the other side of the fusing damper is hinged with a main beam of the cable-stayed bridge; one side of the viscous damper is hinged with the main tower, and the other side of the viscous damper is hinged with the main beam; the wind-resistant support is arranged between a gap between the main beam and the main tower and used for connecting the main beam and the main tower, and the spherical steel support is respectively arranged between the top of the connecting pier and the main beam, between the top of the middle pier and the main beam and between the top of the main pier cantilever beam of the main tower and the main beam. The utility model discloses can improve the performance when cable-stay bridge deals with the multiple spot earthquake and move, strengthen cable-stay bridge's power consumption ability to the accurate power consumption under the different intensity areas of the realization of the specification model that utilizes the attenuator guarantees cable-stay bridge's economical type, improves cable-stay bridge at the suitability in different intensity areas.
Description
Technical Field
The utility model belongs to the technical field of the bridge, more specifically say, relate to a cable-stay bridge supporting and restraint system of considering multiple spot earthquake to move.
Background
The cable-stayed bridge is a bridge which pulls a beam on a tower column by a plurality of cable-stayed pull ropes. It is composed of beam, stayed cable and tower column. The cable-stayed bridge is a self-anchored system, and the horizontal force of a stay cable is borne by a beam. The beam is supported not only on the abutment but also on the stay cables drawn out from the pylon. It can be seen as a multi-span elastically supported continuous beam with guy cables instead of buttresses. The bending moment in the beam body can be reduced, the building height is reduced, the structural weight is reduced, materials are saved, and the spanning capability of the bridge is greatly improved.
The cable-stayed bridge system built at home and abroad is mainly divided into a consolidation system, namely, completely consolidating the tower beam pier, a support of a semi-floating body system main beam supported on a pier top beam, consolidating the tower pier, consolidating the floating system tower pier and no connection between the main beam and the tower pier at the joint according to the relationship among the tower, the beam and the pier. Wherein the energy consumption capacity of different systems under the action of earthquake motion is different. The energy consumption of the consolidation system mainly depends on the rigidity of the main structure, and once the energy consumption capability of the main structure is insufficient in a high-intensity area and large earthquake motion occurs, the structure is easily damaged, and the safety of the full bridge is endangered. The floating system mainly depends on the main tower to resist the earthquake motion, the beam body is not connected with the main tower, so that the beam body does not participate in earthquake motion energy consumption, and the earthquake motion energy consumption capability of the full bridge is poor. The semi-floating system is additionally provided with the support on the basis of the floating system, the main beam is connected with the main tower, the earthquake motion effect is resisted through the side resisting capacity of the support, an energy consumption component is added compared with the floating system, and the earthquake motion energy consumption capacity of a full bridge is improved.
The utility model discloses to the defect of shock resistance under three kinds of different structure systems to half float body system is the basis, provides supporting and restraint system based on the multiple spot earthquake vibrations, has effectively improved cable-stay bridge's earthquake power consumption ability, has strengthened cable-stay bridge's shock resistance, has promoted the popularization of cable-stay bridge in different intensity areas.
Disclosure of Invention
The utility model aims to solve the technical problem that a cable-stay bridge supporting and restraint system of considering the multiple spot earthquake moves is provided, can improve the performance when cable-stay bridge deals with the multiple spot earthquake effectively, strengthens cable-stay bridge's power consumption ability to the specification model that utilizes the attenuator realizes dealing with the accurate power consumption under the different intensity areas, guarantees cable-stay bridge's economical type, improves cable-stay bridge at the suitability in different intensity areas.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is:
a cable-stayed bridge supporting and restraining system considering multipoint earthquake motion comprises a fusing damper, a viscous damper, a wind-resistant support and a single/bidirectional spherical steel support; the fusing damper and the viscous damper are respectively positioned on two sides of a main tower of the cable-stayed bridge, one side of the fusing damper is hinged with the main tower, and the other side of the fusing damper is hinged with a main beam of the cable-stayed bridge; one side of the viscous damper is hinged with the main tower, and the other side of the viscous damper is hinged with the main beam; the wind-resistant support is arranged between the main beam and the gap of the main tower and is used for connecting the main beam and the main tower, and the single/bidirectional spherical steel support is respectively arranged between the top of the connecting pier and the main beam, between the top of the middle pier and the main beam, and between the top of the main pier cantilever of the main tower and the main beam.
Preferably, the wind-resistant support is a rectangular sliding plate support arranged along the width direction of the cable-stayed bridge.
Preferably, the wind-resistant support can be arranged on the inner side of the separated main beam and connected with the main tower, and also can be arranged on the outer side of the integrated main beam and connected with the inner sides of the double tower limbs of the A-type or H-type main tower.
Preferably, the fusing damper and the viscous damper can be arranged on the same tower column or on tower limbs on two sides separately, and the upper parts of the fusing damper and the viscous damper can be connected with two separated main beams or an integral box girder.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
1. the utility model discloses can effectively improve the power consumption ability that cable-stay bridge reply multiple spot earthquake moved, utilize fusing attenuator, viscous damper reinforcing cable-stay bridge's vertical shock resistance, improve cable-stay bridge's damping when the short-term earthquake takes place, reduce the structure in the shear force of ground vibrations effect to reinforcing cable-stay bridge's shock resistance, when the major earthquake takes place, attenuator fusing carries out the shock attenuation power consumption, protection major structure. The wind-resistant support and the single/bidirectional spherical steel support are transversely arranged, and the transverse vibration action is resisted by utilizing the lateral resistance of the main tower and the supports, so that the popularization of the cable-stayed bridge in different intensity areas is promoted.
The utility model discloses the pier adopts fusing attenuator and viscous damper as vertical antidetonation component, has increased one antidetonation system of seting up defences, and the accurate power consumption of the different intensity of reply is realized to the attenuator of accessible selection different models simultaneously to under the circumstances of guaranteeing that the major structure is unchangeable basically, realize the antidetonation economic selection of cable-stay bridge.
Drawings
Fig. 1 is a front view of the supporting and restraining system of the present invention;
FIG. 2 is a schematic top view of the support and restraint system of the present invention;
FIG. 3 is a cross-sectional view (taken along the width of the bridge) of the support and restraint system of the present invention;
fig. 4 is a schematic view of the connection structure of the fused damper and the viscous damper of the present invention with the main tower and the main beam;
in the figure: 1. fusing the damper; 2. a viscous damper; 3. a wind-resistant support; 4. a single/bidirectional spherical steel support; 5. a telescoping device; 6. a cable; 7. a main beam; 8. connecting piers; 9. a middle pier; 10. a main tower.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in figures 1-4, the cable-stayed bridge supporting and restraining system considering multipoint earthquake motion comprises a fusing damper 1, a viscous damper 2, a wind-resistant support 3 and a single/double-direction spherical steel support 4.
One side of the viscous damper 2 is hinged with the main tower 10, and the other side is hinged with the main beam 7. The limiting function under small displacement is realized by connecting the main tower 10 and the main beam 7, meanwhile, the structural damping is increased, the shear force of the base of the structural reaction is reduced when an earthquake occurs, and the stress of the structure is reduced.
The wind-resistant support 3 is arranged between the main beam 7 and the main tower 10 to connect the main beam 7 and the main tower 10, so that the rigidity of the main tower is fully utilized to resist the action of transverse earthquake motion.
The single/bidirectional spherical steel support 4 is respectively arranged between the pier top of the connecting pier 8 and the main beam 7, between the pier top of the middle pier 9 and the main beam 7 and between the main pier cantilever beam top of the main tower 10 and the main beam 7, and the side resistance of the support is utilized to resist the earthquake action, so that the energy consumption capability of the structure is enhanced.
Wherein, the wind-resistant support 3 is a rectangular sliding plate support arranged along the width direction of the cable-stayed bridge. The wind-resistant support 3 can be arranged on the inner side of the separated main beam and connected with the main tower, and can also be arranged on the outer side of the integrated main beam and connected with the inner sides of double tower limbs of an A-type or H-type main tower.
The fusing damper 1 and the viscous damper 2 can be arranged on the same tower column or on tower limbs on two sides separately, and the upper parts of the fusing damper and the viscous damper can be connected with two separated main beams or an integral box beam.
As shown in fig. 1, when two rows of spherical steel supports are arranged on the pier top of the connecting pier 8 along the length direction of the cable-stayed bridge, the two spherical steel supports can be connected by adopting a telescopic device 5. One end of the guy cable 6 is connected with the main tower 10, and the other end is connected with the main beam 7.
The utility model discloses a multidirectional restraint and supporting system, mainly based on half showy system, but increased fusing attenuator 1 and viscous damper 2 on the basis of conventional support, at the very big improvement seismic oscillation energy dissipation ability of work vertically through the attenuator, increase structural damping, thereby reduce the basement shear force of structural reaction, reduce the structure atress, and further consume seismic oscillation energy through the destruction of fusing attenuator when the macroseism takes place, very big protection major structure, the energy dissipation ability has been strengthened. Meanwhile, the wind-resistant support 3 is transversely arranged, the main beam 7 is transversely connected with the main tower 10 through the support, energy consumption is effectively carried out through the support and the main tower 10 when transverse earthquake action is carried out, and the transverse damage of earthquake motion to the structure is weakened; meanwhile, a spherical steel support 4 is arranged below the main beam 7, the earthquake motion is resisted by utilizing the lateral resistance of the support, and a shock-absorbing energy-consuming component is added. Through the system, the performance of the cable-stayed bridge in response to multi-point earthquake motion can be effectively improved, the energy consumption capability of the cable-stayed bridge is enhanced, accurate energy consumption under different intensity areas is realized by utilizing the specification and model of the damper, the economical type of the cable-stayed bridge is ensured, the applicability of the cable-stayed bridge in different intensity areas is greatly improved, the application of the cable-stayed bridge is popularized, and the system has higher practical value.
Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.
Claims (4)
1. A cable-stayed bridge supporting and restraining system considering multipoint earthquake motion is characterized by comprising a fusing damper (1), a viscous damper (2), a wind-resistant support (3) and a single/bidirectional spherical steel support (4); the fusing damper (1) and the viscous damper (2) are respectively positioned at two sides of a main tower (10) of the cable-stayed bridge, one side of the fusing damper (1) is hinged with the main tower (10), and the other side of the fusing damper is hinged with a main beam (7) of the cable-stayed bridge; one side of the viscous damper (2) is hinged with the main tower (10), and the other side of the viscous damper is hinged with the main beam (7); wind-resistant support (3) set up girder (7) with the interstitial space of main tower (10) is used for connecting girder (7) with main tower (10), single/two-way ball-type steel support (4) set up respectively connect the mound top of mound (8) with between girder (7), the mound top of middle mound (9) with between girder (7) the main mound of main tower (10) is chosen the roof beam top with between girder (7).
2. A cable-stayed bridge support and restraint system considering multi-point seismic motion according to claim 1, characterized in that the wind-resistant support (3) is a rectangular sliding plate support arranged along the width direction of the cable-stayed bridge.
3. A cable-stayed bridge support and restraint system considering multi-point seismic motion according to claim 1, wherein the wind-resistant support (3) can be arranged at the inner side of the split main beam to be connected with the main tower, and can also be arranged at the outer side of the integrated main beam to be connected with the inner sides of the double tower limbs of the A-type or H-type main tower.
4. The cable-stayed bridge supporting and restraining system considering the multi-point earthquake as claimed in claim 1, wherein the fused damper (1) and the viscous damper (2) may be disposed on the same pylon or may be separately disposed on the pylon limbs on both sides, and the upper portion may be connected to two separated main girders or to an integral box girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221559460.4U CN218263427U (en) | 2022-06-20 | 2022-06-20 | Cable-stayed bridge supporting and restraining system considering multipoint seismic oscillation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221559460.4U CN218263427U (en) | 2022-06-20 | 2022-06-20 | Cable-stayed bridge supporting and restraining system considering multipoint seismic oscillation |
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| Publication Number | Publication Date |
|---|---|
| CN218263427U true CN218263427U (en) | 2023-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221559460.4U Active CN218263427U (en) | 2022-06-20 | 2022-06-20 | Cable-stayed bridge supporting and restraining system considering multipoint seismic oscillation |
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| CN (1) | CN218263427U (en) |
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2022
- 2022-06-20 CN CN202221559460.4U patent/CN218263427U/en active Active
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