CN111593651A - Two-stage shearing energy-consumption steel plate-polypropylene pellet composite damper and energy consumption method - Google Patents
Two-stage shearing energy-consumption steel plate-polypropylene pellet composite damper and energy consumption method Download PDFInfo
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- CN111593651A CN111593651A CN202010553516.4A CN202010553516A CN111593651A CN 111593651 A CN111593651 A CN 111593651A CN 202010553516 A CN202010553516 A CN 202010553516A CN 111593651 A CN111593651 A CN 111593651A
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- cylinder body
- steel plate
- auxiliary cylinder
- energy consumption
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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
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/02—Suspension 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
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed bridges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to a two-stage shearing energy-consumption steel plate-polypropylene pellet composite damper and an energy consumption method, wherein the two-stage shearing energy-consumption steel plate-polypropylene pellet composite damper comprises the following steps: the damper comprises a main cylinder body and an auxiliary cylinder body, wherein the main cylinder body is spliced with the end part of the auxiliary cylinder body, the middle part in the auxiliary cylinder body is enclosed into a filling section by two clapboards, two baffles are arranged in the filling section, in which the outer side surfaces of the baffles are connected with the inner end of the main cylinder body through steel columns, is filled with polypropylene pellets, a plurality of grooves A are arranged at the upper side and the lower side of the end, inserted into the auxiliary cylinder body, of the main cylinder body along the axial direction of the auxiliary cylinder body at intervals, grooves B are arranged in the auxiliary cylinder body, a placing section is formed between each groove B and the corresponding groove A, the damper has the advantages of convenient installation and maintenance, two-stage energy consumption, bidirectional energy consumption, good energy consumption effect, obvious reduction of the response of the structure under the action of an earthquake, replacement of a shearing energy consumption disc, reutilization of a polypropylene ball and great reduction of the maintenance cost of the damper.
Description
Technical Field
The invention relates to a two-stage shearing energy-consumption steel plate-polypropylene pellet composite damper and an energy consumption method.
Background
The existing conventional node damper is damaged after the major earthquake, the damper fails, and the conventional node damper cannot dissipate the earthquake energy under the action of the subsequent aftershock. Some existing damping energy dissipation components adopt shape memory alloy, the energy dissipation capacity of a shape memory alloy wire coil is limited, and the shape memory alloy is high in price and is not beneficial to popularization in practical application; the existing energy dissipation part adopts a fusing type liquid viscous damper, the fusing type liquid viscous damper cannot solve the key problem of loosening and restricting in the daily working state for a suspension bridge and a cable-stayed bridge of a floating or semi-floating system, and the liquid viscous damper has the problems of oil leakage and aging and is complex to maintain.
Disclosure of Invention
The invention provides a two-stage shearing energy-consumption steel plate-polypropylene ball composite damper and an energy consumption method.
The invention solves the technical problem by adopting the scheme that the two-stage shearing energy-consumption steel plate-polypropylene pellet composite damper comprises a main cylinder body and an auxiliary cylinder body, wherein the left end and the right end of the auxiliary cylinder body are symmetrically provided with two main cylinder bodies, and the main cylinder body is inserted into the end part of the auxiliary cylinder body;
the middle part in the auxiliary cylinder body is surrounded into a filling interval through partition plates which are arranged in a bilateral symmetry mode, two baffle plates are arranged in the filling interval in a bilateral symmetry mode, the outer side faces of the baffle plates are connected with the inner end of the main cylinder body on the same side through steel columns, hole parts for yielding the steel columns are arranged on the partition plates, and polypropylene small balls are filled in the filling interval;
the upper side and the lower side of the end, inserted into the auxiliary cylinder body, of the main cylinder body are provided with a plurality of groups of grooves A at intervals along the axial direction of the auxiliary cylinder body, each group of grooves A is composed of two grooves A which are arranged in an up-down symmetrical mode, the upper side and the lower side in the auxiliary cylinder body are provided with grooves B, the grooves B and the grooves A are arranged in a one-to-one correspondence mode, a placement area is formed between each groove B and the corresponding groove A, and a shearing energy-consuming steel.
Furthermore, the outer wall of the baffle plate and the outer wall of the end, inserted into the auxiliary cylinder body, of the main cylinder body are attached to the inner wall of the auxiliary cylinder body.
Furthermore, the end part of the auxiliary cylinder body is provided with a notch for accommodating the main cylinder body, and the groove B is formed in the upper side wall and the lower side wall of the notch.
Furthermore, the insertion end of the main cylinder body is a cuboid, and the shape of the notch is matched with that of the insertion end of the main cylinder body.
Furthermore, the steel column between the baffle and the main cylinder body comprises a central column and a plurality of edge columns, the central column and the auxiliary cylinder body are coaxial, and the edge columns are uniformly distributed on the outer side of the central column in the circumference.
Furthermore, the steel column is welded with the baffle and the main cylinder body, and the partition plate is welded with the auxiliary cylinder body.
Furthermore, the outer end of the main cylinder body is provided with a rectangular connecting steel plate.
A two-stage energy consumption method comprises the following steps: the energy generated by the seismic waves enables the two ends of the damper to generate reciprocating relative displacement, and energy consumption in the first stage is carried out by means of rubbing off the shearing energy consumption disc; when the earthquake intensity is larger, the energy consumption discs are completely cut, the baffle starts to generate larger displacement to extrude the polypropylene balls to consume the energy generated by the earthquake, and the energy consumption of the second stage is carried out.
Compared with the prior art, the invention has the following beneficial effects: the damper has the advantages of simple structure, reasonable design, easy manufacture, reliable use, convenient installation and maintenance, two-stage energy consumption, bidirectional energy consumption and good energy consumption effect, remarkably reduces the response of the structure under the action of an earthquake, can replace a shearing energy consumption disc, can be repeatedly used by a polypropylene ball, and greatly reduces the maintenance cost of the damper.
Drawings
The invention is further described with reference to the following figures.
FIG. 1 is a schematic structural view of the damper;
FIG. 2 is a schematic structural view of the main cylinder;
FIG. 3 is a schematic structural view of the sub-cylinder;
FIG. 4 is a side view of the main cylinder;
fig. 5 is a side view of the sub-cylinder.
In the figure: 1-main cylinder body; 2-auxiliary cylinder body; 3-a separator; 4-polypropylene beads; 5-a baffle plate; 6-steel column; 7-shearing the energy-consuming steel plate; 8-rectangular connecting steel plates; 9-a hole portion; 10-notches; 11-groove B; 12-groove a.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1-5, the two-stage shearing energy-consumption steel plate-polypropylene pellet composite damper comprises a main cylinder body 1 and an auxiliary cylinder body 2, wherein the left end and the right end of the auxiliary cylinder body are symmetrically provided with two main cylinder bodies, and the main cylinder bodies are inserted into the end parts of the auxiliary cylinder bodies;
the middle part in the auxiliary cylinder body is surrounded into a filling interval through the partition plates 3 which are arranged in a bilateral symmetry mode, two baffle plates 5 are arranged in the filling interval in a bilateral symmetry mode, the outer side faces of the baffle plates are connected with the inner end of the main cylinder body on the same side through steel columns 6, hole parts 9 which are used for abdicating the steel columns are arranged on the partition plates, polypropylene balls 4 are filled in the filling interval, and the baffle plates extrude the polypropylene balls, so that the internal shearing energy consumption of polypropylene molecules can be utilized to the maximum degree, and a better damping effect;
the upper and lower sides that the end that the main cylinder body inserts the auxiliary cylinder body are equipped with a plurality of groups of recess A12 along auxiliary cylinder body axial interval, and every group recess A comprises two recess A that longitudinal symmetry set up, and the upper and lower side in the auxiliary cylinder body all is provided with recess B11, and recess B and recess A one-to-one set up, form between recess B and the recess A that corresponds and place the interval, place interval interpolation and be equipped with shearing energy consumption steel sheet 7, and recess B, recess A are vertical logical groove.
In this embodiment, the outer wall of the baffle and the outer wall of the end of the main cylinder body inserted into the auxiliary cylinder body are both attached to the inner wall of the auxiliary cylinder body.
In this embodiment, the end of the secondary cylinder is provided with a notch 10 for receiving the primary cylinder, and grooves B are formed in the upper and lower side walls of the notch.
In this embodiment, the insertion end of the main cylinder body is a rectangular parallelepiped, and the shape of the notch is adapted to the shape of the insertion end of the main cylinder body.
In this embodiment, the steel column between the baffle and the main cylinder body includes a central column and a plurality of edge columns, the central column and the auxiliary cylinder body are coaxial, and the edge columns are uniformly distributed on the outer side of the central column in the circumference.
In this embodiment, the steel column is welded to the baffle and the main cylinder, and the baffle is welded to the auxiliary cylinder.
In this embodiment, the outer end of the main cylinder is fitted with a rectangular connecting steel plate 8.
In this embodiment, the sub-cylinder may be a rectangular cylinder.
In this embodiment, the rectangular connecting steel plate is usually connected with the support and arranged in the structure, and the oblique and herringbone mounting manners are mostly adopted in the application of the actual engineering:
and in the oblique installation, the damper is connected in series on the diagonal support, and the relative displacement of two ends of the damper is larger than the interlayer lateral displacement of the structure. The oblique installation structure is simple and easy to assemble, but the occupied space is large, the walking of personnel and the arrangement of doors and windows are not facilitated, and the node burden is heavy.
And the herringbone installation is that the damper is connected in series on a horizontal rod at the top end of the herringbone support, or the damper is directly connected between the herringbone support and the frame beam. The relative displacement of the two ends of the damper is equal to the interlaminar lateral displacement of the structure. The damper in the herringbone installation mode can fully utilize the energy dissipation capacity of the damper, and the lateral stability needs to be fully considered during the support design.
A two-stage energy consumption method comprises the following steps: the energy generated by the seismic waves enables the two ends of the damper to generate reciprocating relative displacement, and energy consumption in the first stage is carried out by means of rubbing off the shearing energy consumption disc; when the earthquake intensity is larger, the energy consumption discs are completely cut, the baffle starts to generate larger displacement to extrude the polypropylene balls to consume the energy generated by the earthquake, and the energy consumption of the second stage is carried out.
The damper completes the combination of different energy consumption mechanisms and different energy consumption materials, realizes the aim of energy consumption in two stages, has good energy consumption effect, and obviously reduces the response of the structure under the action of an earthquake; the replaceable energy-consumption disc of the damper can be replaced, the polypropylene balls can be recycled, the maintenance cost of the damper is greatly reduced, and the damper is easy to manufacture, reliable to use and convenient to install and maintain.
The damper can solve the problem that the actual structure is greatly deformed and damaged under the action of tension and compression under the action of an earthquake, and improves the earthquake resistant performance of the structure. The damper is mainly installed on nodes, supports, floor spaces and other parts of a building structure of a multi-earthquake zone.
If this patent discloses or refers to parts or structures that are fixedly connected to each other, the fixedly connected may be understood as: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In the description of this patent, it is to be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the patent, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
The above-mentioned preferred embodiments, further illustrating the objects, technical solutions and advantages of the present invention, should be understood that the above-mentioned are only preferred embodiments of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A two-stage shearing energy-consuming steel plate-polypropylene pellet composite damper is characterized in that: the cylinder comprises a main cylinder body and an auxiliary cylinder body, wherein the left end and the right end of the auxiliary cylinder body are symmetrically provided with two main cylinder bodies, and the main cylinder body is inserted into the end part of the auxiliary cylinder body;
the middle part in the auxiliary cylinder body is surrounded into a filling interval through partition plates which are arranged in a bilateral symmetry mode, two baffle plates are arranged in the filling interval in a bilateral symmetry mode, the outer side faces of the baffle plates are connected with the inner end of the main cylinder body on the same side through steel columns, hole parts for yielding the steel columns are arranged on the partition plates, and polypropylene small balls are filled in the filling interval;
the upper side and the lower side of the end, inserted into the auxiliary cylinder body, of the main cylinder body are provided with a plurality of groups of grooves A at intervals along the axial direction of the auxiliary cylinder body, each group of grooves A is composed of two grooves A which are arranged in an up-down symmetrical mode, the upper side and the lower side in the auxiliary cylinder body are provided with grooves B, the grooves B and the grooves A are arranged in a one-to-one correspondence mode, a placement area is formed between each groove B and the corresponding groove A, and a shearing energy-consuming steel.
2. The two-stage shear energy-consuming steel plate-polypropylene pellet composite damper as claimed in claim 1, wherein: the shearing energy consumption steel plate is a shearing energy consumption disc.
3. The two-stage shear energy-consuming steel plate-polypropylene pellet composite damper as claimed in claim 1, wherein: the outer wall of the baffle plate and the outer wall of the end, inserted into the auxiliary cylinder body, of the main cylinder body are attached to the inner wall of the auxiliary cylinder body.
4. The two-stage shear energy-consuming steel plate-polypropylene pellet composite damper as claimed in claim 3, wherein: the end part of the auxiliary cylinder body is provided with a notch for accommodating the main cylinder body, and the groove B is formed in the upper side wall and the lower side wall of the notch.
5. The two-stage shear energy-consuming steel plate-polypropylene pellet composite damper as claimed in claim 4, wherein: the insertion end of the main cylinder body is a cuboid, and the shape of the notch is matched with that of the insertion end of the main cylinder body.
6. The two-stage shear energy-consuming steel plate-polypropylene pellet composite damper as claimed in claim 1, wherein: the steel column between the baffle and the main cylinder body comprises a central column and a plurality of edge columns, the central column and the auxiliary cylinder body are coaxial, and the edge columns are uniformly distributed on the outer side of the central column in the circumferential direction.
7. The two-stage shear energy-consuming steel plate-polypropylene pellet composite damper as claimed in claim 1 or 6, wherein: the steel column is welded with the baffle and the main cylinder body, and the baffle is welded with the auxiliary cylinder body.
8. The two-stage shear energy-consuming steel plate-polypropylene pellet composite damper as claimed in claim 1, wherein: the outer end of the main cylinder body is provided with a rectangular connecting steel plate.
9. A two-stage energy consumption method using the two-stage shear energy consumption steel plate-polypropylene pellet composite damper as claimed in claim 2, wherein: the energy generated by the seismic waves enables the two ends of the damper to generate reciprocating relative displacement, and energy consumption in the first stage is carried out by means of rubbing off the shearing energy consumption disc; when the earthquake intensity is larger, the energy consumption discs are completely cut, the baffle starts to generate larger displacement to extrude the polypropylene balls to consume the energy generated by the earthquake, and the energy consumption of the second stage is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010553516.4A CN111593651A (en) | 2020-06-17 | 2020-06-17 | Two-stage shearing energy-consumption steel plate-polypropylene pellet composite damper and energy consumption method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010553516.4A CN111593651A (en) | 2020-06-17 | 2020-06-17 | Two-stage shearing energy-consumption steel plate-polypropylene pellet composite damper and energy consumption method |
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| CN111593651A true CN111593651A (en) | 2020-08-28 |
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| CN202010553516.4A Pending CN111593651A (en) | 2020-06-17 | 2020-06-17 | Two-stage shearing energy-consumption steel plate-polypropylene pellet composite damper and energy consumption method |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561173A (en) * | 2011-12-19 | 2012-07-11 | 北京工业大学 | Speed type structure connecting and locking device containing shear thickening liquid |
| US20140326553A1 (en) * | 2009-11-16 | 2014-11-06 | Foster-Miller, Inc. | Shock energy absorber |
| CN206737179U (en) * | 2017-05-09 | 2017-12-12 | 西安建筑科技大学 | A kind of frcition damper of filled polypropylene bead |
| CN107906160A (en) * | 2017-12-13 | 2018-04-13 | 中铁二院工程集团有限责任公司 | A kind of novel rod-type viscous damper |
| CN108265847A (en) * | 2018-02-27 | 2018-07-10 | 同济大学 | Piston type particle damper |
| CN109477539A (en) * | 2016-06-21 | 2019-03-15 | Ｋｙｂ株式会社 | Damper |
| CN209227368U (en) * | 2018-11-07 | 2019-08-09 | 上海思纳建筑规划设计股份有限公司 | Energy consumption damping limit support |
| CN110924289A (en) * | 2019-12-17 | 2020-03-27 | 玛格巴（上海）桥梁构件有限公司 | Damper with limiting and shearing functions |
| CN111075047A (en) * | 2019-12-31 | 2020-04-28 | 同济大学 | Piston type damper |
-
2020
- 2020-06-17 CN CN202010553516.4A patent/CN111593651A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140326553A1 (en) * | 2009-11-16 | 2014-11-06 | Foster-Miller, Inc. | Shock energy absorber |
| CN102561173A (en) * | 2011-12-19 | 2012-07-11 | 北京工业大学 | Speed type structure connecting and locking device containing shear thickening liquid |
| CN109477539A (en) * | 2016-06-21 | 2019-03-15 | Ｋｙｂ株式会社 | Damper |
| CN206737179U (en) * | 2017-05-09 | 2017-12-12 | 西安建筑科技大学 | A kind of frcition damper of filled polypropylene bead |
| CN107906160A (en) * | 2017-12-13 | 2018-04-13 | 中铁二院工程集团有限责任公司 | A kind of novel rod-type viscous damper |
| CN108265847A (en) * | 2018-02-27 | 2018-07-10 | 同济大学 | Piston type particle damper |
| CN209227368U (en) * | 2018-11-07 | 2019-08-09 | 上海思纳建筑规划设计股份有限公司 | Energy consumption damping limit support |
| CN110924289A (en) * | 2019-12-17 | 2020-03-27 | 玛格巴（上海）桥梁构件有限公司 | Damper with limiting and shearing functions |
| CN111075047A (en) * | 2019-12-31 | 2020-04-28 | 同济大学 | Piston type damper |
Non-Patent Citations (1)
| Title |
|---|
| 詹程嵩: "《液压与液力传动》", 31 December 1982, 中国铁道出版社 * |
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Application publication date: 20200828 |