CN211079888U - High-intensity seismic area through-type reinforced concrete arch bridge structure earthquake-resistant system - Google Patents
High-intensity seismic area through-type reinforced concrete arch bridge structure earthquake-resistant system Download PDFInfo
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- CN211079888U CN211079888U CN201921238191.XU CN201921238191U CN211079888U CN 211079888 U CN211079888 U CN 211079888U CN 201921238191 U CN201921238191 U CN 201921238191U CN 211079888 U CN211079888 U CN 211079888U
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Abstract
An earthquake-resistant system of a deck type reinforced concrete arch bridge structure in a high-intensity earthquake area is used for effectively improving the overall earthquake-resistant performance and the earthquake-resistant and disaster-reducing capacity of the deck type reinforced concrete arch bridge. This antidetonation system includes: the beam between the arch rings is arranged between the left main arch ring and the right main arch ring at intervals along the axis, and two ends of the beam are respectively fixedly connected with the left main arch ring and the right main arch ring; the variable-rigidity support is arranged on the top cover beam of the upright column, and the horizontal shear rigidity of each variable-rigidity support is adjusted and set according to the height of the upright column and the shock resistance; the viscous damper is arranged at the transition piers at the two sides and is connected with the capping beam at the transition pier and the main bridge roadway beam plate; the device for preventing the beam from falling in the multi-direction can be linked and arranged between each bent cap and the traffic lane beam plate, and can limit the displacement of the traffic lane beam plate in the bridge direction, the transverse bridge direction and the vertical direction, so as to prevent the beam from falling.
Description
Technical Field
The utility model relates to a bridge, in particular to deck formula reinforced concrete arch bridge structure suitable for high intensity seismic region.
Background
The long-span through-put type reinforced concrete arch bridge has good stress performance, durability and economy, attractive appearance and good environmental adaptability, and is applied and practiced on mountain roads. In a high-intensity earthquake area, the structural earthquake-resistant problem to be solved by the deck type reinforced concrete arch bridge mainly comprises the following steps: (1) large displacement under the action of transverse seismic force; (2) the height difference of the arch upright posts is large, and the seismic force distribution is not uniform; (3) and (4) arching the upper lane beam plates and falling beams under the simultaneous action of the transverse, transverse and vertical earthquakes along the bridge direction to safely risk. In order to improve the earthquake resistance and earthquake-proof and disaster-reducing capacity of the deck reinforced concrete arch bridge, a reasonable earthquake-proof system is required.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a high-intensity earthquake district through-type reinforced concrete arch bridge structure antidetonation system is provided to effectively improve through-type reinforced concrete arch bridge's whole anti-seismic performance and the ability of taking precautions against earthquakes and reducing disasters.
The utility model provides an above-mentioned high-intensity seismic region is born formula reinforced concrete and is encircleed bridge structure antidetonation system, the main bridge includes main arch ring, the mound passes through, stand and carriageway beam slab, both ends and the main arch ring that the hunch seat concreties include horizontal separation's left side width of cloth main arch ring, right side width of cloth main arch ring, the stand sets up at left side width of cloth main arch ring, right side width of cloth main arch ring along following the bridge to the interval, set up the transition mound on the arch seat of both sides, the cross-bridge is to corresponding between the mound that passes through, between the stand in its top set up the bent cap of concretion with it, carriageway beam slab passes through the support. It is characterized in that the anti-seismic system comprises: the beam between the arch rings is arranged between the left main arch ring and the right main arch ring at intervals along the axis, and two ends of the beam are respectively fixedly connected with the left main arch ring and the right main arch ring; the variable-rigidity support is arranged on the top cover beam of the upright column, and the horizontal shear rigidity of each variable-rigidity support is adjusted and set according to the height of the upright column and the shock resistance; the viscous damper is arranged at the transition piers at the two sides and is connected with the capping beam at the transition pier and the main bridge roadway beam plate; the device for preventing the beam from falling in the multi-direction can be linked and arranged between each bent cap and the traffic lane beam plate, and can limit the displacement of the traffic lane beam plate in the bridge direction, the transverse bridge direction and the vertical direction, so as to prevent the beam from falling.
The utility model has the advantages that the transverse rigidity and stability of the arch bridge are improved and the transverse earthquake displacement is reduced through a reasonable structure earthquake-resistant system; the earthquake force borne by each upright post is distributed more uniformly, and better earthquake resistance is obtained; the viscous damper and the linked multidirectional beam falling prevention device are arranged, so that energy consumption and shock absorption are realized, and the beam falling of the traffic lane beam plate is effectively prevented; the overall anti-seismic performance and the anti-seismic and disaster-reducing capacity of the deck reinforced concrete arch bridge are improved.
Drawings
The present specification includes the following figures:
FIG. 1 is a vertical view of the deck-wise direction of the earthquake-resistant system of the deck-type reinforced concrete arch bridge structure in the high-intensity earthquake area of the present invention;
FIG. 2 is a cross-bridge vertical view of the high-intensity seismic area through-type reinforced concrete arch bridge structure earthquake-proof system of the utility model;
the figures show the components and corresponding references: the device comprises a left main arch ring 11, a right main arch ring 12, a vertical column 13, a cover beam 14, an arch base 15, a transition pier 16, an inter-arch ring beam 17, a roadway beam plate 20, an angle support 21, a viscous damper 22 and a linkage multidirectional anti-falling beam device 23.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Referring to fig. 1 and 2, the utility model discloses a high-intensity seismic region deck-type reinforced concrete arch bridge structure antidetonation system, the main bridge includes main arch ring 11 and 12, transition mound 16, stand 13 and travelway beam slab 20, the main arch ring that both ends and abutment 15 concreted includes horizontal spaced left side width of cloth main arch ring 11, right side width of cloth main arch ring 12, stand 13 sets up on left side width of cloth main arch ring 11, right side width of cloth main arch ring 12 to the interval along the bridge, set up transition mound 16 on the abutment 15 of both sides, between the transition mound 16 that the crossbridge corresponds, set up the bent cap 14 of consolidating with it on its top between the stand 13, travelway beam slab 20 supports on each bent cap 14 through support 21. This antidetonation system includes: the inter-arch ring cross beam 17 is arranged between the left main arch ring 11 and the right main arch ring 12 at intervals along the axis, and two ends of the inter-arch ring cross beam are respectively fixedly connected with the left main arch ring 11 and the right main arch ring 12, so that the integrity and the transverse rigidity of the main arch rings are improved, and the transverse seismic displacement is reduced; the variable-rigidity support is arranged on the support 21 on the top cover beam 14 of the upright post 13, and the horizontal shear rigidity of each variable-rigidity support is adjusted and set according to the height and the seismic capacity of the upright post 13, so that the seismic force borne by each upright post 13 is distributed uniformly, and good seismic performance is obtained; the viscous dampers 22 are arranged at the transition piers 16 at the two sides and are connected with the cover beam 14 at the transition pier 16 and the main bridge roadway beam slab 20 to perform energy dissipation and shock absorption and reduce the longitudinal displacement of the roadway beam slab 20; the linkage multi-directional beam falling prevention device 40 is arranged between each cover beam 14 and the traffic lane beam plate 20, limits the forward, transverse and vertical displacement of the traffic lane beam plate 20 and prevents beam falling.
Referring to fig. 1, the inter-arch cross beam 17 is disposed below each of the columns 13 and between two adjacent columns 13 in the bridge direction. Two crossbeams 17 between the arch rings are arranged below the upright columns 13 along the two sides of the bridge, namely below the high upright column. The cross section of the beam 17 between the arch rings is I-shaped.
The above is only used for illustrating the principles of the earthquake-resistant system of the high-intensity earthquake area through the reinforced concrete arch bridge structure of the present invention, which is not to limit the present invention to the specific structure and the applicable scope, so all the corresponding modifications and equivalents that may be utilized all belong to the patent scope of the present invention.
Claims (3)
1. High-intensity seismic area deck-type reinforced concrete arch bridge structure anti-seismic system, the main bridge includes main arch ring, transition mound (16), stand (13) and travelway beam slab (20), the main arch ring that both ends and hunch seat (15) concretion includes horizontal spaced left side main arch ring (11), right side main arch ring (12), stand (13) are along setting up in left side main arch ring (11) to the interval in the same direction as the bridge, on right side main arch ring (12), set up transition mound (16) on both sides hunch seat (15), between the corresponding transition mound (16) of crossbridge, set up capping beam (14) of consolidating with it on its top between stand (13), travelway beam slab (20) support on each capping beam (14) through support (21), characterized by that this anti-seismic system includes: the inter-arch ring cross beam (17) is arranged between the left main arch ring (11) and the right main arch ring (12) at intervals along the axis, and two ends of the inter-arch ring cross beam are respectively fixedly connected with the left main arch ring (11) and the right main arch ring (12); the variable-rigidity support is arranged on a support (21) on a bent cap (14) at the top of the upright post (13), and the horizontal shear rigidity of each variable-rigidity support is adjusted and set according to the height and the shock resistance of the upright post (13); the viscous damper (22) is arranged at the transition piers (16) at two sides and is connected with the capping beam (14) at the transition pier (16) and the main bridge roadway beam plate (20); the multi-directional beam falling prevention device (40) capable of being linked is arranged between each cover beam (14) and the traffic lane beam plate (20), and limits the forward, transverse and vertical displacements of the traffic lane beam plate (20) to prevent beam falling.
2. The high intensity seismic area through-put reinforced concrete arch bridge structure anti-seismic system of claim 1, wherein: the cross beam (17) between the arch rings is arranged below each upright post (13) and arranged between two adjacent upright posts (13) along the bridge direction, and two cross beams (17) between the arch rings are arranged below each upright post (13) along the bridge direction.
3. The high intensity seismic area through-put reinforced concrete arch bridge structure anti-seismic system of claim 1, wherein: the cross section of the beam (17) between the arch rings is I-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921238191.XU CN211079888U (en) | 2019-08-01 | 2019-08-01 | High-intensity seismic area through-type reinforced concrete arch bridge structure earthquake-resistant system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921238191.XU CN211079888U (en) | 2019-08-01 | 2019-08-01 | High-intensity seismic area through-type reinforced concrete arch bridge structure earthquake-resistant system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016390A (en) * | 2021-12-07 | 2022-02-08 | 中铁大桥勘测设计院集团有限公司 | Deck-type steel arch bridge anti-seismic structure system |
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2019
- 2019-08-01 CN CN201921238191.XU patent/CN211079888U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016390A (en) * | 2021-12-07 | 2022-02-08 | 中铁大桥勘测设计院集团有限公司 | Deck-type steel arch bridge anti-seismic structure system |
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