CN209584876U - A kind of railway gravity pier novel dual energy consumption combined earthquake-resistant bracing means - Google Patents
A kind of railway gravity pier novel dual energy consumption combined earthquake-resistant bracing means Download PDFInfo
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- CN209584876U CN209584876U CN201920065546.3U CN201920065546U CN209584876U CN 209584876 U CN209584876 U CN 209584876U CN 201920065546 U CN201920065546 U CN 201920065546U CN 209584876 U CN209584876 U CN 209584876U
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- pier
- bracing means
- bridge pier
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Abstract
The utility model relates to a kind of railway gravity pier novel dual consume energy combined earthquake-resistant bracing means, the bracing means be by steel band, high-damping rubber and L-type steel board group at.By omnipotent glue connection on the inside of the vertical plane of high-damping rubber and L-type steel plate, the vertical plane outside hoop of L-type steel plate is equipped with steel band, is anchored between the horizontal plane and cushion cap of L-type steel plate by screw rod, the bracing means and bridge pier are by omnipotent glue connection.The bracing means can realize the common promotion of pier stiffness, intensity and energy dissipation capacity.The beneficial effects of the utility model are: under the premise of not damaging bridge pier, by the plastic deformation energy dissipation of two dissipative cells, solving the anti-seismic problem under big shake for railway gravity pier.Meanwhile the bracing means does not damage bridge pier, is easily installed, maintains at low cost, replacement conveniently, by all-purpose adhesive closed reinforcement device and bridge pier interface, plays a protective role to bridge pier, is suitble to promote the use of on China railways gravity pier.
Description
Technical field
The utility model relates to a kind of railway gravity pier novel dual energy consumption combined earthquake-resistant bracing means, in particular to
A kind of high-damping rubber-steel plate-steel band combination unit for reinforcing existing railway gravity pier.Bridge pier can be improved in the present apparatus
Rigidity, intensity and energy dissipation capacity, and have economic cost low, do not damage bridge pier, the advantages that reinforcement process is succinct, which can
Seismic hardening for China's large area railway gravity pier.
Background technique
Bridge structure is widely distributed as the lifeline engineering in basic facility.Western China topography and geographical ring
Border is special, and earthquake is easily sent out, how to reduce destruction of the bridge structure in earthquake for Post disaster relief, reduce economic loss have it is important
Meaning.For railroad bridge since driving requires height, load is big, and design concept is different from highway bridge, and superstructure is generally with case
Based on type concrete section, substructure uses gravity pier, and sectional dimension is big, rigidity is big, arrangement of reinforcement is few (≤0.5%).
In Tangshan, Wenchuan earthquake, the destruction of gravity pier shows the feature different from reinforced concrete bridge pier, for this existing
As domestic Ji Suo research institutions expand experimental study to gravity pier, the results showed that, this kind of bridge pier energy dissipation capacity is insufficient,
Ductile performance is poor, is difficult to meet the performance requirement of " no collapsing with strong earthquake ".Such issues that solve, to the railway gravity type having a large capacity and a wide range
It is a kind of most effective way that bridge pier, which carries out seismic hardening,.The seismic hardening of bridge pier can be divided into two kinds at present: (1) replacement subtracts shock insulation
Support (indirect mode) weakens Dun Liang connection by vibration absorption and isolation support, prevents inertia force from being transferred to bridge pier, so that bridge pier be protected to exempt from
By seismic Damage.But this method, for railroad bridge, enforcement difficulty is big, and at high cost, and the replacement of support also affects
Train normal operation.(2) reinforce bridge pier (direct mode), pass through outsourcing carbon cloth, concrete, steel plate etc..This method pair
It is easy to implement in section lesser highway bridge pier (armored concrete), and consolidation effect is good, but railway gravity pier section is big,
The reinforcement cost of construction inconvenience and needs is larger.In addition, 2009 under the commission of science and technology department, the Ministry of Railways, Lanzhou Jiaotong University is anti-
Shake seminar has carried out " railway gravity pier Assessment of Seismic Vulnerability and seismic strengthening technology " special subject study, as a result table
Bright, the outsourcing method for strengthening for the purpose of improving intensity can shift the failure mechanics of gravity pier, it is difficult to realize " no collapsing with strong earthquake "
Performance requirement.In consideration of it, proposing that a kind of energy-dissipating type anti-seismic strengthening device of railway gravity pier is very necessary.
Summary of the invention
In view of the above-mentioned problems, the utility model relates to a kind of railway gravity pier novel dual energy consumption combined earthquake-resistants to reinforce
Device is mainly made of steel band, L-type steel plate, high-damping rubber three parts.On the inside of the vertical plane of high-damping rubber and L shape steel plate
By omnipotent glue connection, hoop is equipped with steel band on the outside of the vertical plane of L-type steel plate, passes through screw rod between the horizontal plane and cushion cap of L-type steel plate
Anchoring, the bracing means and bridge pier are by omnipotent glue connection.
To realize the above-mentioned technical purpose, the utility model adopts the following technical solution:
A. cutting and the matched L-type steel plate of bridge pier size and high-damping rubber, surface of steel plate of polishing；
B. use all-purpose adhesive by high-damping rubber together with L-type steel plate vertical plane inner adhesion；
C. bridge pier is drafted and reinforces height region surface grinding process, L-type steel plate horizontal plane apertured eye；
D. bracing means and bridge pier are bonded in vertical plane using all-purpose adhesive, using screw rod by L-type steel plate horizontal plane with hold
Platform anchoring.
E. above procedure is repeated in four sides of bridge pier, and with the steel band lock ring L-type steel plate and high-damping rubber of peripheral hardware.
The major advantage of the utility model is:
1, the utility model is that a kind of consumptive material is less, bracing means easy to process, can be real by reinforcing pier bottom weak area
The promotion of existing bridge pier entirety anti-seismic performance, is suitable for the seismic hardening of China railways gravity pier.
2, bracing means is to the effect of haveing a certain upgrade of the rigidity of bridge pier.
3, when small shake, high-damping rubber has certain initial stiffness, glues on the inside of high-damping rubber and L-type steel plate in vertical plane
Knot, cushion cap and L-type steel plate horizontal plane anchor, and bracing means and bridge pier bond, and realize the strength enhancing of bridge pier pier bottom weakness zone.
4, when big shake, lift-off occurs for pier shaft, and high-damping rubber passes through shear-deformable dissipation seismic energy, L-type steel plate right angle
Dissipation seismic energy is equally played the role of in the deformation at place, and the ductile performance of bridge pier can be improved.
5, the utility model does not need large-scale construction equipment, can shift to an earlier date it is prefabricated also make, to bridge pier without any
Damage without special rush-resisting material, simple maintenance, while being a kind of replaceable bracing means.
Detailed description of the invention
Fig. 1 is the structural map of bracing means；
Fig. 2 is reinforcing area and the cushion cap drilling of polishing bridge pier；
Fig. 3 is bracing means layout drawing；
Fig. 4 is the deformation pattern of deformation and bracing means of the bridge pier under big shake；
Specific embodiment
The present invention will be further described with reference to the accompanying drawing:
As shown in Figure 1, showing the shape of the high-damping rubber 1 and L-type steel plate 2 in bracing means in figure.According to reinforcing
Highly, the size of bridge pier determines the size of high-damping rubber 1 and L-type steel plate 2, and in the horizontal plane apertured eye 3 of L shape steel plate 2.
As shown in Fig. 2, place apertured road 5 corresponding with 2 horizontal plane eyelet 3 of L-type steel plate, cleaning polishing bridge pier 6 add on cushion cap 4
Gu region 7.As shown in figure 3, high-damping rubber 1 and bridge pier 6 are used omnipotent glue connection, 8 lock ring L-type steel plate of peripheral hardware steel band, 2 He
High-damping rubber 1, screw rod 9 anchor the horizontal plane of cushion cap 4 and L-type steel plate 2.This bracing means that this patent proposes is for bridge pier
Rigidity have castering action, under small shake, intensity is can be improved in combination unit, it is ensured that do not damaged under small shake, under big shake, pier bottom
Brittle failure type occurs to destroy, as shown in figure 4, fracture open is closed, lift-off occurs for pier shaft, and shear-deformable reality occurs for high-damping rubber 1
Existing damping energy dissipation, at the same L-type steel plate 2 right angle deformation can earthquake energy, it is ensured that structure does not collapse when big shake.This
Kind anti-seismic strengthening device does not damage bridge pier, and easy construction is replaceable, and maintenance is at low cost.
Claims (5)
- The combined earthquake-resistant bracing means 1. a kind of railway gravity pier novel dual consumes energy, it is characterized in that: the bracing means packet Include high-damping rubber (1), L-type steel plate (2) and steel band (8)；By ten thousand on the inside of the vertical plane of high-damping rubber (1) and L-type steel plate (2) The vertical plane outside hoop of energy glue connection, L-type steel plate (2) is equipped with steel band (8), between the horizontal plane and cushion cap (4) of L-type steel plate (2) It is anchored by screw rod (9), by omnipotent glue connection, the bridge pier (6) is rectangle for the bracing means and bridge pier (6), is all around set There are high-damping rubber (1), L-type steel plate (2), steel band (8).
- The combined earthquake-resistant bracing means 2. a kind of railway gravity pier novel dual according to claim 1 consumes energy, it is special Sign is: the thickness of high-damping rubber (1) is within 5cm.
- The combined earthquake-resistant bracing means 3. a kind of railway gravity pier novel dual according to claim 1 consumes energy, it is special Sign is: steel band (8) can reinforce the connection of bracing means Yu bridge pier (6), by the precompression for adjusting steel band (8), it is ensured that high-damping Rubber (1) occurs shear-deformable.
- The combined earthquake-resistant bracing means 4. a kind of railway gravity pier novel dual according to claim 1 consumes energy, it is special Sign is: by all-purpose adhesive closing bridge pier (6) and Air Interface, playing a protective role to bridge pier (6).
- The combined earthquake-resistant bracing means 5. a kind of railway gravity pier novel dual according to claim 1 consumes energy, it is special Sign is: all around pier bottom region is stabilization zone to the bridge pier (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920065546.3U CN209584876U (en) | 2019-01-16 | 2019-01-16 | A kind of railway gravity pier novel dual energy consumption combined earthquake-resistant bracing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920065546.3U CN209584876U (en) | 2019-01-16 | 2019-01-16 | A kind of railway gravity pier novel dual energy consumption combined earthquake-resistant bracing means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209584876U true CN209584876U (en) | 2019-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920065546.3U Expired - Fee Related CN209584876U (en) | 2019-01-16 | 2019-01-16 | A kind of railway gravity pier novel dual energy consumption combined earthquake-resistant bracing means |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808760A (en) * | 2021-01-19 | 2022-07-29 | 新疆北新路桥集团股份有限公司 | Old bridge reinforcing apparatus |
-
2019
- 2019-01-16 CN CN201920065546.3U patent/CN209584876U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808760A (en) * | 2021-01-19 | 2022-07-29 | 新疆北新路桥集团股份有限公司 | Old bridge reinforcing apparatus |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191105 Termination date: 20210116 |