CN104532738B - A kind of device and constructional method improving the horizontal anti-seismic performance of concrete T beam bridge - Google Patents
A kind of device and constructional method improving the horizontal anti-seismic performance of concrete T beam bridge Download PDFInfo
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- CN104532738B CN104532738B CN201410813321.3A CN201410813321A CN104532738B CN 104532738 B CN104532738 B CN 104532738B CN 201410813321 A CN201410813321 A CN 201410813321A CN 104532738 B CN104532738 B CN 104532738B
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- bridge
- rib support
- concrete
- seismic performance
- horizontal anti
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to a kind of horizontal anti-seismic performance device of raising concrete T beam bridge, comprise construction of bridge T beam, described T beam is right with rib 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 web plate, for rib support to the connection of same concrete T-shaped beam. The present invention also relates to a kind of constructional method improving the horizontal anti-seismic performance device of concrete T beam bridge, and it is simple that the present invention has structure, the feature of easy construction.
Description
Technical field
The present invention relates to a kind of device and the constructional method that improve the horizontal anti-seismic performance of concrete T beam bridge, belong to bridge field.
Background technology
The earthquake disaster area of China has reached more than half of the area of China, especially quite frequent in Seismic activity in recent years, brings huge financial loss to the mankind, and some special violent earthquakes are own brings inestimable financial 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 improving at present the horizontal anti-seismic performance of beam bridge is at the shockproof block of bent cap arranged outside, prevents girder from producing excessive transversal displacement under seismic loading or the phenomenon of the beam that occurs laterally to fall.
But the design and structure of the horizontal Antivibration block of concrete is not all proposed clear and definite regulation by domestic and international existing bridge earthquake resistance specification, only it can be used as a kind of construction measure. When after Wenchuan earthquake, earthquake action is all pointed out in relevant bridge analysis report, concrete block destroys is one of the most general earthquake of beam bridge beam.
Summary of the invention
In order to solve existing technical deficiency, the present invention provides a kind of device and the constructional method that improve the horizontal anti-seismic performance of concrete T beam bridge, and this structure mechanism is firm, easy construction, can significantly improve the horizontal anti-seismic performance of beam bridge.
Technical program of the present invention lies in:
A kind of device improving the horizontal anti-seismic performance of concrete T beam bridge, comprise construction of bridge T beam, it is characterized in that: described construction of bridge T beam is right with the rib support being made up of rib support, described rib support is made up of steel plate and is arranged to interval along bridge, described construction of bridge T beam and rib support bonding surface are provided with web plate, for rib support to the connection of same concrete T-shaped beam.
Wherein, the support of described rib is to when earthquake action, the rib support of rib support centering is pressed, and a rib support tension, is formed plastic hinge in rib supports, dissipated the input energy of seismic wave by plastic hinge with the form of hysteretic energy.
The flexural stiffness of described rib support should not be greater than the 1/20 of construction of bridge T beam torsional stiffness.
The flexural stiffness of described rib support is the 1/20-1/50 of construction of bridge T beam torsional stiffness, first forms plastic hinge in rib support to guarantee when earthquake action.
The width of described rib support is 1-2cm, is highly 10-20cm.
Another technical scheme of the present invention is:
It is a kind of based on the constructional method under said apparatus, it is characterised in that, carry out as follows:
(1) web plate is welded with T beam reinforcing mat;
(2) T beam concrete is built;
(3) the T beam after casting concrete is carried out suitable maintenance;
(4) same web plate is connected by rib support.
It is an advantage of the current invention that: the device of the horizontal anti-seismic performance of this raising concrete T beam bridge, when earthquake action, the rib support of rib support centering is pressed, a rib support tension, plastic hinge is formed in rib supports, 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 earthquake load that girder bears, effectively raise the horizontal anti-seismic performance of beam bridge, simultaneously compared to expensive anti-seismic damper, the present invention has cheap, the advantage of easy construction.
Accompanying drawing explanation
Fig. 1 is the organigram of inventive embodiments.
Fig. 2 is the distortion schematic diagram of inventive embodiments.
In figure: 1-construction of bridge T beam, the support of 2-rib is right, 3-web plate.
Embodiment
For the above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing, it is described in detail below.
Referring to figs. 1 to Fig. 2, the present invention relates to a kind of device improving the horizontal anti-seismic performance of concrete T beam bridge, 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, it is made up of steel plate, described construction of bridge T beam and rib support bonding surface is provided with web plate 3, for rib support to the connection of same concrete T-shaped beam.
In the present embodiment, described rib supports 2 when earthquake action, the rib support of rib support centering is pressed, a rib support tension, in rib supports, 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 earthquake load that girder bears, effectively raise the horizontal anti-seismic performance of beam bridge.
In the present embodiment, the flexural stiffness of described rib support should not be greater than the 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, first in rib support, form plastic hinge to guarantee when earthquake action.
In the present embodiment, the width of described rib support is 1-2cm, is highly 10-20cm, and taking 15-20cm as good, calculates according to practical situation.
In the present embodiment, the constructional method of a kind of device improving the horizontal anti-seismic performance of concrete T beam bridge, carries out according to the following steps:
(1) web plate 3 is welded with T beam 1 reinforcing mat;
(2) T beam 1 concrete is built;
(3) the T beam 1 after casting concrete is carried out suitable maintenance;
(4) rib support is connected with web plate 32.
The foregoing is only the better embodiment of the present invention, all impartial changes done according to the present patent application patent scope, with modifying, all should belong to the covering scope of the present invention.
Claims (6)
1. one kind is improved the device of the horizontal anti-seismic performance of concrete T beam bridge, comprise construction of bridge T beam, it is characterized in that: described construction of bridge T beam is right with the rib support being made up of rib support, described rib support is made up of steel plate and is arranged to interval along bridge, described construction of bridge T beam and rib support bonding surface are provided with web plate, for rib support to the connection of same concrete T-shaped beam.
2. a kind of device improving the horizontal anti-seismic performance of concrete T beam bridge according to claim 1, it is characterized in that: described rib supports when earthquake action, the rib support of rib support centering is pressed, a rib support tension, in rib supports, 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 the horizontal anti-seismic performance of concrete T beam bridge according to claim 1, it is characterised in that: the flexural stiffness of described rib support should not be greater than the 1/20 of construction of bridge T beam torsional stiffness.
4. a kind of device improving the horizontal anti-seismic performance of concrete T beam bridge according to claim 3, it is characterized in that: the flexural stiffness of described rib support is the 1/20-1/50 of construction of bridge T beam torsional stiffness, first in rib support, form plastic hinge to guarantee when earthquake action.
5. a kind of device improving the horizontal anti-seismic performance of concrete T beam bridge according to claim 1, it is characterised in that: the width of described rib support is 1-2cm, is highly 10-20cm.
6. one kind based on the constructional method under said apparatus, it is characterised in that, carry out as follows:
(1) web plate is welded with T beam reinforcing mat;
(2) T beam concrete is built;
(3) the T beam after casting concrete is carried out suitable maintenance;
(4) same web plate is connected by rib support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410813321.3A CN104532738B (en) | 2014-12-24 | 2014-12-24 | A kind of device and constructional method improving the horizontal anti-seismic performance of concrete T beam bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410813321.3A CN104532738B (en) | 2014-12-24 | 2014-12-24 | A kind of device and constructional method improving the horizontal anti-seismic performance of concrete T beam bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104532738A CN104532738A (en) | 2015-04-22 |
| CN104532738B true CN104532738B (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410813321.3A Expired - Fee Related CN104532738B (en) | 2014-12-24 | 2014-12-24 | A kind of device and constructional method improving the horizontal anti-seismic performance of concrete T beam bridge |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729343B (en) * | 2018-05-24 | 2020-09-08 | 西南交通大学 | Post-earthquake recoverable assembled energy-consuming column pier structure |
| CN109778661A (en) * | 2019-01-21 | 2019-05-21 | 浙江工业大学 | 3 adjustable steel truss formula T beam diaphragms |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5200825B2 (en) * | 2008-09-29 | 2013-06-05 | Ｊｆｅエンジニアリング株式会社 | Construction method of arch rib of concrete arch bridge |
| CN102191750B (en) * | 2010-03-10 | 2013-03-27 | 重庆交通大学 | Construction method for waterproof isolation structure of anchor plate of cable-stayed bridge by adopting steel-concrete composite beam |
| KR101228135B1 (en) * | 2010-12-02 | 2013-01-31 | 한국철도기술연구원 | Composite beam using steel member with shear parts to upper part of steel member and bridge construction method using the same |
| CN102995553B (en) * | 2012-11-27 | 2014-08-27 | 胜利油田胜利工程建设（集团）有限责任公司 | Arch rib of reinforced concrete arch bridge and erection support and manufacture method of arch rib |
| CN204370298U (en) * | 2014-12-24 | 2015-06-03 | 福州大学 | A kind of device improving concrete T beam bridge Horizontal Seismic performance |
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| CN104532738A (en) | 2015-04-22 |
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Granted publication date: 20160601 Termination date: 20211224 |