CN204370298U - A kind of device improving concrete T beam bridge Horizontal Seismic performance - Google Patents
A kind of device improving concrete T beam bridge Horizontal Seismic performance Download PDFInfo
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- CN204370298U CN204370298U CN201420829091.5U CN201420829091U CN204370298U CN 204370298 U CN204370298 U CN 204370298U CN 201420829091 U CN201420829091 U CN 201420829091U CN 204370298 U CN204370298 U CN 204370298U
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- bridge
- rib support
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- seismic performance
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Abstract
The utility model relates to a kind of raising concrete T beam bridge Horizontal Seismic performance devices, comprise construction of bridge T beam, it is right that described T sill bolt has rib to support, arrange to interval along bridge, described rib support is made by steel plate, described T beam and rib support bonding surface are provided with junction plate, for the connection of rib support to same concrete T-shaped beam.The utility model also relates to a kind of construction method improving concrete T beam bridge Horizontal Seismic performance devices, and it is simple that the utility model has structure, the feature of easy construction.
Description
Technical field
The utility model relates to a kind of device improving concrete T beam bridge Horizontal Seismic performance, belongs to bridge field.
Background technology
The earthquake disaster area of China has reached the over half of the area of China, especially quite frequent in seismic activity in recent years, brings huge economic loss to the mankind, and some special violent earthquakes are own brings immeasurable economic loss to human society.And the direction across bridge anti-seismic performance of beam bridge is relatively weak to comparing with vertical bridge, the major measure of current raising beam bridge Horizontal Seismic performance is at bent cap arranged outside anti-knock block, prevents girder under seismic loading, producing excessive lateral displacement or the phenomenon of the beam that occurs laterally to fall.
But domestic and international existing bridge earthquake resistance specification does not all propose clear and definite regulation to the design and structure of concrete Horizontal Seismic block, only it can be used as a kind of construction measure.When after Wenchuan earthquake, geological process is all pointed out in relevant bridge analysis report, concrete block destroys is one of the most general earthquake of beam type bridge.
Utility model content
In order to solve existing technical deficiency, the utility model provides a kind of device improving concrete T beam bridge Horizontal Seismic performance, and this constructive mechanism is firm, easy construction, can significantly improve beam bridge Horizontal Seismic performance.
The technical solution of the utility model is:
A kind of device improving concrete T beam bridge Horizontal Seismic performance, comprise construction of bridge T beam, it is characterized in that: described construction of bridge T sill bolt have by rib support the rib that forms support right, described rib support is made up of steel plate and arranges to interval along bridge, described construction of bridge T beam and rib support bonding surface are provided with junction plate, for the connection of rib support to same concrete T-shaped beam.
Wherein, the support of described rib is to when geological process, and rib support centering rib support pressurized, a rib support tension, in rib support, formation plastic hinge, dissipates the input energy of seismic wave with the form of hysteretic energy by plastic hinge.
The bending rigidity of described rib support should not be greater than 1/20 of construction of bridge T beam torsional stiffness.
The bending rigidity of described rib support is the 1/20-1/50 of construction of bridge T beam torsional stiffness, to guarantee first to form plastic hinge in rib support when geological process.
The width of described rib support is 1-2cm, is highly 10-20cm.
The utility model has the advantage of: the device of this raising concrete T beam bridge Horizontal Seismic performance, rib support centering rib support pressurized when geological process, a rib support tension, plastic hinge is formed in rib support, dissipated the input energy of seismic wave with the form of hysteretic energy by plastic hinge, reduce the lateral seismic reaction of bridge superstructure, reduce the excessive seismic load that girder bears, effectively raise the Horizontal Seismic performance of beam bridge, simultaneously compared to expensive anti-seismic damper, the utility model has cheap, the advantage of easy construction.
Accompanying drawing explanation
Fig. 1 is the organigram of utility model embodiment.
Fig. 2 is the distortion schematic diagram of utility model embodiment.
In figure: 1-construction of bridge T beam, the support of 2-rib is right, 3-junction plate.
Detailed description of the invention
For above-mentioned feature and advantage of the present utility model can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below.
Referring to figs. 1 to Fig. 2, the utility model relates to a kind of device improving concrete T beam bridge Horizontal Seismic performance, comprise construction of bridge T beam 1, described construction of bridge T beam 1 supports 2 with rib, described rib support 2 is arranged to interval along bridge, be made up of steel plate, described construction of bridge T beam and rib support bonding surface be provided with junction plate 3, for the connection of rib support to same concrete T-shaped beam.
In the present embodiment, the support of described rib to 2 when geological process, rib support centering rib support pressurized, a rib support tension, in rib support, form plastic hinge, dissipated the input energy of seismic wave by plastic hinge with the form of hysteretic energy, reduce the lateral seismic reaction of bridge superstructure, reduce the excessive seismic load that girder bears, effectively raise the Horizontal Seismic performance of beam bridge.
In the present embodiment, the bending rigidity of described rib support should not be greater than 1/20 of construction of bridge T beam torsional stiffness, and for the 1/20-1/50 of construction of bridge T beam torsional stiffness be good, to guarantee first to form plastic hinge in rib support when geological process.
In the present embodiment, the width of described rib support is 1-2cm, is highly 10-20cm, and is good with 15-20cm, calculate according to actual conditions.
The foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (5)
1. one kind is improved the device of concrete T beam bridge Horizontal Seismic performance, comprise construction of bridge T beam, it is characterized in that: described construction of bridge T sill bolt have by rib support the rib that forms support right, described rib support is made up of steel plate and arranges to interval along bridge, described construction of bridge T beam and rib support bonding surface are provided with junction plate, for the connection of rib support to same concrete T-shaped beam.
2. a kind of device improving concrete T beam bridge Horizontal Seismic performance according to claim 1, it is characterized in that: the support of described rib is to when geological process, rib support centering rib support pressurized, a rib support tension, in rib support, form plastic hinge, dissipated the input energy of seismic wave by plastic hinge with the form of hysteretic energy.
3. a kind of device improving concrete T beam bridge Horizontal Seismic performance according to claim 1, is characterized in that: the bending rigidity of described rib support should not be greater than 1/20 of construction of bridge T beam torsional stiffness.
4. a kind of device improving concrete T beam bridge Horizontal Seismic performance according to claim 3, it is characterized in that: the bending rigidity of described rib support is the 1/20-1/50 of construction of bridge T beam torsional stiffness, to guarantee first to form plastic hinge in rib support when geological process.
5. a kind of device improving concrete T beam bridge Horizontal Seismic performance according to claim 1, is characterized in that: the width of described rib support is 1-2cm, is highly 10-20cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420829091.5U CN204370298U (en) | 2014-12-24 | 2014-12-24 | A kind of device improving concrete T beam bridge Horizontal Seismic performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420829091.5U CN204370298U (en) | 2014-12-24 | 2014-12-24 | A kind of device improving concrete T beam bridge Horizontal Seismic performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204370298U true CN204370298U (en) | 2015-06-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420829091.5U Withdrawn - After Issue CN204370298U (en) | 2014-12-24 | 2014-12-24 | A kind of device improving concrete T beam bridge Horizontal Seismic performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204370298U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532738A (en) * | 2014-12-24 | 2015-04-22 | 福州大学 | Device for improving horizontal anti-seismic property of T-shaped concrete beam bridge and construction method thereof |
-
2014
- 2014-12-24 CN CN201420829091.5U patent/CN204370298U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532738A (en) * | 2014-12-24 | 2015-04-22 | 福州大学 | Device for improving horizontal anti-seismic property of T-shaped concrete beam bridge and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150603 Effective date of abandoning: 20160601 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |