CN201620347U - Reinforced concrete body vibration isolation unit - Google Patents
Reinforced concrete body vibration isolation unit Download PDFInfo
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- CN201620347U CN201620347U CN2010201476031U CN201020147603U CN201620347U CN 201620347 U CN201620347 U CN 201620347U CN 2010201476031 U CN2010201476031 U CN 2010201476031U CN 201020147603 U CN201020147603 U CN 201020147603U CN 201620347 U CN201620347 U CN 201620347U
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- reinforced concrete
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Abstract
The utility model discloses a reinforced concrete body vibration isolation unit, which comprises an inner reinforced concrete body (3) for surrounding a bridge pier and one or more outer reinforced concrete bodies (5), filling material layers are arranged in a gap among adjacent reinforced concrete bodies, a concrete cover plate is disposed at tops of all the reinforced concrete bodies, and bottoms of all the reinforced concrete bodies are respectively provided with an independent foundation. The vibration isolation unit is used for construction together with an elevated railway bridge pier, one vibration isolation unit can meet vibration isolation requirements for an ordinary vibration reduction district, and the vibration isolation unit has small construction range and less damage to surrounding environment. Besides, the vibration isolation unit has vibration isolation effect superior to a single barrier, has good integral stability, and is mainly used for reducing and isolating environmental vibrations caused by elevated rail transit.
Description
Technical field
The utility model relates to a kind of vibration isolation measure, specifically is the double steel bar concrete cylindrical cylindrical shell vibration isolation unit of the ambient vibration that causes of a kind of aerial conveyor traffic that is used to decay.
Background technology
Advantages such as track traffic is big with its freight volume, high speed is convenient, air pollution index is little have become the effective measures that solve the urban traffic congestion.The vibration that train operation meanwhile causes is to surrounding enviroment, and the normal use of building safety and precision instrument has caused more and more and seriously influenced, and this problem is subjected to various countries scholar's generally attention, seeks various effective vibration damping and vibration isolation measures one after another.For the aerial conveyor traffic system, running train produces vibration to the percussion of track, and by the stratum of structure (pier of bridge and basis thereof) around being delivered to, and then pass through native medium all around to propagating, near the secondary vibration of underground structure and building (comprising its structure and indoor furniture) further bringing out, thus people's work and life in the structural safety of building and the building have been produced very big influence.Control vibration source and cut-out wave propagation approach are effective vibration isolation measures: aspect the control vibration source, various countries scholar's research concentrates on the development of vibration damping type track structure and rail fastening, the wherein common iron chair fastener of the flexible bed course of one-level vibration damping form, track vibration-reducing device, LORD fastener and Pan Delu pioneer (Vanguard) fastener etc., the flexible sleeper of secondary vibration damping form, the formula of floating track etc.; Aspect cut-out wave propagation approach, various countries scholar's research concentrates on the barrier vibration isolation, wherein barrier is free ditch, fills ditch (ditch that haydite, sand, sawdust are filled, diaphragm wall etc.), porose row of discontinuous barrier (wave resistance piece WIB) and a row (single row or multiple rows powder spray piling) etc. continuously.But, for the location (precision instrument laboratory, hospital etc.) that has special vibration damping to need, single vibration isolation measure does not reach the effectiveness in vibration suppression of expection sometimes, the reasonable combination that needs several measures, and the boundary of works area that traditional barrier vibration isolation needs is bigger, destruction to surrounding enviroment is big, and is subjected to the influence of surrounding enviroment easily, and boundary of works area is restricted.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of double steel bar concrete cylindrical cylindrical shell vibration isolation unit is provided, the energy of soil body vibration wave farthest is limited in the bridge pier near zone, the energy of soil body vibration wave obtains decay in this zone, reduces vibration wave to propagating all around.
The technical scheme that its technical problem that solves the utility model adopts is: be provided with the internal layer reinforced concrete soil body of an encirclement bridge pier, be provided with one or more outer reinforcement concrete bodies more outward, the space between the adjacent steel reinforced concrete body is an encapsulant layer; In all reinforced concrete soil bodys, its top is provided with a steel concrete cover plate altogether, and its bottom respectively is provided with a single footing.
The utility model compared with prior art has following major advantage:
One. can construct with the elevated railway bridge pier is parallel, for general vibration damping location, a vibration isolation unit can reach the vibration isolation requirement, and boundary of works area is little, destroys less to surrounding environment;
They are two years old. be better than the vibration isolating effect of single barrier, and boundary of works area little (generally be limited in 6 meters circumference in) apart from the bridge pier center, and less to the destruction of surrounding enviroment, be mainly used on the vibration damping and vibration isolation of the ambient vibration that the aerial conveyor traffic causes.
They are three years old. and resistance to overturning is better than traditional vibration isolation measure.
Description of drawings
Fig. 1 is the sectional view of the utility model vibration isolation unit along the bridge pier cross section, and this figure mainly shows the relative position relation of the utility model and bridge pier.
Fig. 2 is an A-A sectional view among Fig. 1, and this figure mainly shows the relative position relation between the following basis of the tube of each layer cylindrical tube, the overlap joint of steel concrete cover plate and inside and outside layer Reinforced Concrete Circular Cylinder cylindrical shell.
Among the figure: 1. bridge pier; 2. plain soil layer; 3. internal layer Reinforced Concrete Circular Cylinder cylindrical shell; 4. encapsulant layer; 5. outer reinforcement concrete cylindrical cylindrical shell; 6. outside plain soil layer; 7. excavation border; 8. the tube of internal layer cylindrical tube is basic down; 9. the tube of outer cylindrical tube body is basic down; 10. steel concrete cover plate; 11. natural soil layer.
The specific embodiment
The double steel bar concrete cylindrical cylindrical shell vibration isolation unit that the utility model provides, the ambient vibration that the aerial conveyor traffic that is used to decay causes, its structure is: the internal layer reinforced concrete soil body 3 that is provided with an encirclement bridge pier, be provided with one or more outer reinforcement concrete bodies 5 more outward, the space between the adjacent steel reinforced concrete body is an encapsulant layer; In all reinforced concrete soil bodys, its top is provided with a steel concrete cover plate 10 altogether, and its bottom respectively is provided with a single footing.
Described steel concrete cover plate 10 is overlapped on the top of all reinforced concrete soil bodys, rather than is rigidly connected, and can avoid the first road barrier to drive the second road barrier vibration like this, propagates thereby reduce the soil layer on every side of vibration wave outside vibration isolation measure.
The utility model is described in further detail below in conjunction with double steel bar concrete bodies vibration isolation unit and accompanying drawing.
Double steel bar concrete cylindrical cylindrical shell is set, bridge pier is surrounded, as the double barrier that intercepts vibration wave, specifically as depicted in figs. 1 and 2: the internal layer reinforced concrete soil body 3 is a cylindrical tube, and outer reinforcement concrete bodies 5 is cylindrical tube or rectangle cylindrical shell.Perhaps, the internal layer reinforced concrete soil body 3 is the rectangle cylindrical shell, and outer reinforcement concrete bodies 5 is cylindrical tube or rectangle cylindrical shell.Be encapsulant layer 4 between the internal layer reinforced concrete soil body 3 and the outer reinforcement concrete bodies 5.
The described internal layer reinforced concrete soil body 3 surrounds bridge pier 1, as the first road barrier that intercepts vibration wave, is plain soil layer 2 between them.Outer reinforcement concrete bodies 5 surrounds the bridge pier and the internal layer reinforced concrete soil body, as the second road barrier that intercepts vibration wave.
Described encapsulant layer 4 is the haydite layer, utilizes the bulk characteristics of haydite, reaches the purpose of friction energy-dissipating.This encapsulant layer also can be a layer of sand, or the block rubber layer.
The bottom of the internal layer reinforced concrete soil body 3 be provided with an internal layer cylindrical tube the tube under the basis 8.
The bottom of outer steel concrete body 5 be provided with an outer cylindrical tube body the tube under the basis 9.In the outside of outer steel concrete body 5 are outside plain soil layers 6.The outside of externally plain soil layer 6 is excavation borders 7, and situation according to the geological condition and the neighboring buildings structure of place soil, whether decision adopts supporting and protection structure at excavation 7 places, border, guarantees stable, the unaffected and construction safety of neighboring buildings structure of excavation slope.
The bottom on basis 9 is nature soil layers 11 under the tube of basis 8 and outer cylindrical tube body under the tube of described internal layer cylindrical tube.
The parallel construction of the utility model and elevated railway bridge pier.Its job practices is: at first carry out Base Design under each layer Reinforced Concrete Circular Cylinder cylindrical shell tube, geological mapping data according to the place, in conjunction with elevated railway pier cap pattern and pile foundation type, the tube of choose reasonable internal layer cylindrical tube is the tube basis 9 down of basis 8 and outer cylindrical tube body down, and the tube of internal layer and outer layer barrel should leave the space between the basis down.The cast-in-place internal layer Reinforced Concrete Circular Cylinder cylindrical shell 3 of difference, outer reinforcement concrete cylindrical cylindrical shell 5 on basis 9 under basis 8 under described and the tube, and carry out necessary supporting measure.Treat that bridge pier 1, internal layer Reinforced Concrete Circular Cylinder cylindrical shell 3 and 5 constructions of outer reinforcement concrete cylindrical cylindrical shell finish, backfill haydite 4, plain soil 2 and plain soil 6 on the circumferencial direction of described two cylindrical tubes, form the plain soil layer of backfill haydite layer and backfill, and backfill is consistent highly as far as possible, guarantees the stability of each layer cylindrical shell.At the top of double-deck cylindrical tube steel concrete cover plate 10 is set, prevent that sand from entering backfill haydite layer, adopt the mode (Fig. 2) of overlap joint between described cover plate and cylindrical shell, steel concrete cover plate 10 should extend certain width (for example 10cm) in the plain soil layer of the backfill of a side.
The course of work of the present utility model is: haydite is filled the space between internal layer and the outer reinforcement concrete cylindrical cylindrical shell, after this vibration isolation unit is set, the actual attenuation situation of vibration wave is: the elevated trains operation, be delivered to the vibration of soil layer on every side by bridge pier (comprising pier and basis), part vibration wave energy is earlier through the first road barrier decay, enter backfill haydite layer afterwards, after the friction energy-dissipating of backfill haydite layer,, propagate to the distant place at last again through the decay of the second road barrier.The tube of each layer Reinforced Concrete Circular Cylinder cylindrical shell down need leave the space between the basis, fills with haydite between the space, reduces to be delivered to because of the basis of vibration wave by the first road barrier vibration of the top soil body that the second road barrier causes.Be the bulk characteristics of avoiding the extraneous soil body to enter backfill haydite damage layer haydite layer, treat haydite fill finish after, at backfill haydite layer top the steel concrete cover plate is set.Adopt overlap joint between cover plate and the cylindrical shell, rather than be rigidly connected, avoid the first road barrier to drive the second road barrier vibration, propagate thereby reduce the soil layer on every side of vibration wave outside vibration isolation measure.
The parallel construction of the utility model and elevated railway bridge pier, for general vibration damping location, a vibration isolation unit can reach the vibration isolation requirement, and boundary of works area is little, destroys less to surrounding environment; Vibration isolating effect is better than single barrier, and resistance to overturning is good, is mainly used on the vibration damping and vibration isolation of the ambient vibration that the aerial conveyor traffic causes.
Claims (5)
1. reinforced concrete soil body vibration isolation unit, it is characterized in that: be provided with the internal layer reinforced concrete soil body (3) of an encirclement bridge pier, be provided with one or more outer reinforcement concrete bodies (5) more outward, the space between the adjacent steel reinforced concrete body is an encapsulant layer; In all reinforced concrete soil bodys, its top is provided with a steel concrete cover plate altogether, and its bottom respectively is provided with a single footing.
2. reinforced concrete soil body vibration isolation unit according to claim 1 is characterized in that: described steel concrete cover plate is overlapped on the top of all reinforced concrete soil bodys.
3. reinforced concrete soil body vibration isolation unit according to claim 1 is characterized in that double steel bar concrete bodies vibration isolation unit, and wherein: the internal layer reinforced concrete soil body (3) is a cylindrical tube, and outer reinforcement concrete bodies (5) is cylindrical tube or rectangle cylindrical shell.
4. reinforced concrete soil body vibration isolation unit according to claim 1 is characterized in that double steel bar concrete bodies vibration isolation unit, and wherein: the internal layer reinforced concrete soil body (3) is the rectangle cylindrical shell, and outer reinforcement concrete bodies (5) is cylindrical tube or rectangle cylindrical shell.
5. reinforced concrete soil body vibration isolation unit according to claim 1 is characterized in that: encapsulant layer is haydite layer or layer of sand or block rubber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201476031U CN201620347U (en) | 2010-03-30 | 2010-03-30 | Reinforced concrete body vibration isolation unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201476031U CN201620347U (en) | 2010-03-30 | 2010-03-30 | Reinforced concrete body vibration isolation unit |
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| CN201620347U true CN201620347U (en) | 2010-11-03 |
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| CN2010201476031U Expired - Fee Related CN201620347U (en) | 2010-03-30 | 2010-03-30 | Reinforced concrete body vibration isolation unit |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535524A (en) * | 2012-01-18 | 2012-07-04 | 北京工业大学 | Composite multi-frequency-band vibration isolation trench for building |
| CN103410177A (en) * | 2013-07-26 | 2013-11-27 | 上海岩土工程勘察设计研究院有限公司 | Forming method of underground shielding vibration-isolation structure |
| CN109306704A (en) * | 2018-11-19 | 2019-02-05 | 中铁隧道局集团有限公司 | A kind of aquatic measurement platform multilayer damping stake |
| CN111156286A (en) * | 2018-11-08 | 2020-05-15 | 上海音宁电子科技有限公司 | Low-frequency vibration damping and isolating system |
| CN113201982A (en) * | 2021-04-20 | 2021-08-03 | 北京城建设计发展集团股份有限公司 | Vibration reduction method of rail transit structure |
| CN114319419A (en) * | 2021-12-23 | 2022-04-12 | 北京铁城检测认证有限公司 | Vibration isolation system of concrete vibration compaction forming machine |
| CN115637709A (en) * | 2022-11-07 | 2023-01-24 | 中铁第四勘察设计院集团有限公司 | Foundation pit enclosure structure with blasting vibration isolation effect and rock foundation pit blasting excavation method |
-
2010
- 2010-03-30 CN CN2010201476031U patent/CN201620347U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535524A (en) * | 2012-01-18 | 2012-07-04 | 北京工业大学 | Composite multi-frequency-band vibration isolation trench for building |
| CN102535524B (en) * | 2012-01-18 | 2014-04-02 | 北京工业大学 | Composite multi-frequency-band vibration isolation trench for building |
| CN103410177A (en) * | 2013-07-26 | 2013-11-27 | 上海岩土工程勘察设计研究院有限公司 | Forming method of underground shielding vibration-isolation structure |
| CN103410177B (en) * | 2013-07-26 | 2016-05-11 | 上海岩土工程勘察设计研究院有限公司 | A kind of formation method of underground shielding vibration insulation structure |
| CN111156286A (en) * | 2018-11-08 | 2020-05-15 | 上海音宁电子科技有限公司 | Low-frequency vibration damping and isolating system |
| CN109306704A (en) * | 2018-11-19 | 2019-02-05 | 中铁隧道局集团有限公司 | A kind of aquatic measurement platform multilayer damping stake |
| CN109306704B (en) * | 2018-11-19 | 2023-12-26 | 中铁隧道局集团有限公司 | Multilayer shock absorption pile for water measurement platform |
| CN113201982A (en) * | 2021-04-20 | 2021-08-03 | 北京城建设计发展集团股份有限公司 | Vibration reduction method of rail transit structure |
| CN114319419A (en) * | 2021-12-23 | 2022-04-12 | 北京铁城检测认证有限公司 | Vibration isolation system of concrete vibration compaction forming machine |
| CN115637709A (en) * | 2022-11-07 | 2023-01-24 | 中铁第四勘察设计院集团有限公司 | Foundation pit enclosure structure with blasting vibration isolation effect and rock foundation pit blasting excavation method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20130330 |