CN201521041U - Strengthening arc-shaped viscoelastic damper for beam-column joint - Google Patents

Strengthening arc-shaped viscoelastic damper for beam-column joint Download PDF

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Publication number
CN201521041U
CN201521041U CN2009202377261U CN200920237726U CN201521041U CN 201521041 U CN201521041 U CN 201521041U CN 2009202377261 U CN2009202377261 U CN 2009202377261U CN 200920237726 U CN200920237726 U CN 200920237726U CN 201521041 U CN201521041 U CN 201521041U
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elastic body
plate
composite elastic
arc
junction plate
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Expired - Lifetime
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CN2009202377261U
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Chinese (zh)
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周云
邓雪松
邹征敏
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Guangzhou University
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Guangzhou University
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Abstract

The utility model provides a strengthening arc-shaped viscoelastic damper for a beam-column joint, which is formed by elastic bodies (3), cut steel plates (4), a first connecting plate (5) and a second connecting plate (6), wherein the elastic bodies (3) are formed by alternately coinciding viscoelastic material layers (1) with thin steel plate layers (2). A composite elastic body (7) is formed by alternately coinciding the elastic bodies (3) with the cut steel plates (4). The damper is characterized in that the composite elastic body (7) is in an arc shape with a central angle of 90 degrees; each elastic body (3) and each cut steel plate (4) are in arc shapes coaxial with the composite elastic body (7); and the included angle between the outer side face of the first connecting plate (5) and the outer side face of the second connecting plate (6) is 90 degrees, and the extension lines of the two outer side faces intersect at the centre of the composite elastic body (7). The damper is capable of being directly installed inside a lower armpit or/and an upper armpit of a beam and a column of a frame structure to realize seismic resistance and strengthening of a beam-column joint of the frame structure.

Description

Beam-column joint strengthening arc-shaped viscoelastic damper
Technical field:
The utility model relates to the building unit of a kind of vibration proof or vibrations, is specifically related to the Viscoelastic Composite damper, and it is widely used in building damping, earthquake structural engineering field.
Background technology:
Technology:
Building structure is when design, often do not consider the combination stressed effect of Vierendeel girder and floor, body of wall, cause the beam section bending rigidity excessive, thereby cause building structure post when earthquake take place to destroy or bean column node destroys, and press the generation " strong column and weak beam " of regulation and stipulation, the mode of failure of " member a little less than the node by force ".Traditional method is by the cross section that increases post and increases the anti-seismic performance that the bean column node arrangement of reinforcement improves building structure post and bean column node that this is the antidetonation countermeasure of passive passiveness.There is following problem in the method for existing bean column node seismic design: (1) bean column node arrangement of reinforcement too much causes reinforcing bar intensive, make troubles to building operations, and waste material; (2) cross section of increase post has just increased the rigidity of post, to a certain extent earthquake is had amplification, and this antidetonation to building is unfavorable on the contrary.
Rational and effective antidetonation approach is that structure is installed antishock device (system), bears geological process jointly by antishock device and structure, and promptly common the storage and the dissipation seismic energy is to alleviate and to adjust the earthquake response of structure.This is aggressive antidetonation countermeasure, also is important breakthrough and developing direction in the present antidetonation countermeasure.
The damping member of existing viscoelastic damper is mainly by the be superimposed elastic body that forms and shear steel plate and be superimposed to form of rubber and steel sheet, can be divided into two types according to its stress, a kind of weighing apparatus that supports carries a vibration-insulation damping device (as the notice of authorization number utility model patent for CN2685420Y, CN2685419Y and CN201258541), it is by above-mentioned damping member and be welded on two junction plates of shearing steel plate upper and lower sides face up and down respectively and form, and is located at usually and plays function of shock insulation between construction level; Another kind is can not support weighing apparatus to carry, only passive damper (number is the utility model patent of CN2276584Y as notice of authorization), it by above-mentioned damping member and be welded on respectively shear up and down steel plate up and down two junction plates at two form, usually be located between two building structure, or cooperate diagonal angle that is supported on two-layer beam column up and down or the middle part that is supported on beam column as resiliency supported with rigid support, destroy because of distortion to avoid building structure.This shows, above-mentioned first kind damper obviously is not suitable for the reinforcing of bean column node, though dwindling specification, the above-mentioned second class damper cooperates with rigid support in the armpit up and down that can be installed to bean column node, but following defective is foreseeable, the one, size to dwindle its supporting capacity obviously limited, even do not have the effect of antidetonation, the 2nd, rigid support had both increased cost of production, bring technical difficulty for again production and construction, obviously also be not suitable for the reinforcing of bean column node.
Summary of the invention:
In view of there is above-mentioned deficiency in prior art, technical problem to be solved in the utility model provides a kind of viscoelastic damper that is applicable to beam-column joint reinforcing.
The technical scheme that the utility model addresses the above problem is as follows:
A kind of beam-column joint strengthening arc-shaped viscoelastic damper, this damper by viscoelastic material layer and steel sheet layer be superimposed the elastic body that forms, shear steel plate, first junction plate and second junction plate and form, wherein, described elastic body is superimposed into a composite elastic body with the shearing steel plate, shear in the steel plates for every adjacent two in this composite elastic body, one extends to first junction plate and fixedly connected with it to one, and another piece extends to second junction plate and fixedly connected with it to the other end; There are two to be positioned at the outside and to fixedly connected in the described shearing steel plate with same a plate (i.e. first junction plate or second junction plate), it is characterized in that, described composite elastic body is that central angle is 90 ° arc, and each elastic body and shearing steel plate are and the body concentric arc of composite elastic; The angle of described first junction plate and the second junction plate lateral surface also is 90 °, and the extended line of the two meets at the center of circle of composite elastic body.
In the technique scheme, not only bear shear action but also bear effect of contraction owing to be positioned at the described composite elastic body outside two shearing steel plates, and its another free-ended outside there is not any constraint, obviously can't bear bigger restraint forces.In order to solve this technical barrier, in the composite elastic body described in the utility model, two other ends (unconfined free end) of shearing steel plate that are positioned at the outside are provided with restraining plate, and this restraining plate and described two heads of shearing steel plate fuse, and form the restraining structure of the rectangular frame in a cross section.Limited the composite elastic body torsional deformation for fear of restraining plate, be provided with gap X between described restraining plate and the composite elastic body, the size of this gap X equals 1~5mm and is advisable.
This beam-column joint strengthening arc-shaped viscoelastic damper is distributed with installing hole on wherein said first junction plate and second junction plate, so that fixedly connected with the frame construction beam and column.
Beam-column joint strengthening arc-shaped viscoelastic damper described in the utility model, because wherein said composite elastic body is that central angle is 90 ° arc, be welded on that rear damper also is 90 ° arc on first junction plate or second junction plate for central angle, therefore can be directly installed on armpit under frame structural beam and the post or/and go up the seismic hardening of the interior implementation framework Structure Beam-column node of armpit.In addition, the utlity model has whole damper and do not have little usage space and the advantage such as with low cost of not taking of other attached members, easy for installation, volume.
Description of drawings:
Fig. 1-4 is the structural representation of a specific embodiment of beam-column joint strengthening arc-shaped viscoelastic damper described in the utility model, and wherein, Fig. 1 is a front view, and Fig. 2 is a left view, and Fig. 3 is the A-A profile of Fig. 1, and Fig. 4 is the enlarged drawing of local I among Fig. 3.
Fig. 5 and Fig. 6 are the structural representation of another specific embodiment of beam-column joint strengthening arc-shaped viscoelastic damper described in the utility model, and wherein, Fig. 5 is a front view, and Fig. 6 is the B-B sectional drawing of Fig. 5.
The specific embodiment:
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further.
Shown in Fig. 1-4, viscoelastic material layer 1 is a rubber, and the steel sheet layer 2 of it and arc is superimposed and forms the elastic body 3 (seeing Fig. 3 and 4) of arc; Composite elastic body 7 is superimposed to form by the elastic body 3 of 4 concentric arcs and the shearing steel plate 4 of 5 arcs, and its central angle is 90 °; In the shearing steel plate 4 of described 5 arcs, two extension is fixing with 5 welding of first junction plate counterclockwise, and three extension is fixing with 6 welding of second junction plate clockwise; The angle of described first junction plate 5 and second junction plate, 6 lateral surfaces also is 90 °, and the extended line of the two meets at the center of circle of composite elastic body 7.Referring to Fig. 2, four corners of first junction plate 5 and second junction plate 6 are respectively equipped with installing hole 8.
The preparation method of Fig. 1-4 illustrated embodiment, suggestion be earlier on request with viscoelastic material layer 1, steel sheet layer 2 with shear the steel plate 4 HTHP sulfuration that is superimposed in the sulfuration railway carriage or compartment and make composite elastic body 7, and then weld first junction plate 5 and second junction plate 6.
Referring to Fig. 5 and Fig. 6, in this routine composite elastic body 7, the end and 6 welding of second junction plate that are positioned at the two shearing steel plates 4 in the outside are fixed, and the other end is provided with restraining plate 9, this restraining plate 9 is welded as a whole with described two heads of shearing steel plate 4, forms the restraining structure of the rectangular frame in a cross section.In this example, set gap X=3mm between restraining plate 9 and the composite elastic body 7.This routine described damper can weld restraining plate 9 and make on the basis of Fig. 1-4 illustrated embodiment.

Claims (4)

1. beam-column joint strengthening arc-shaped viscoelastic damper, the elastic body (3) that this damper is superimposed and is formed by viscoelastic material layer (1) and steel sheet layer (2), shear steel plate (4), first junction plate (5) and second junction plate (6) are formed, wherein, described elastic body (3) is superimposed into a composite elastic body (7) with shearing steel plate (4), shear in the steel plates (4) for every adjacent two in this composite elastic body (7), one extends to first junction plate (5) and fixedly connected with it to one, and another piece extends to second junction plate (6) and fixedly connected with it to the other end; Have in the described shearing steel plate (4) two be positioned at the outside and with fixedly connected with a plate, it is characterized in that, described composite elastic body (7) is 90 ° arc for central angle, and each elastic body (3) and shearing steel plate (4) are and the concentric arc of composite elastic body (7); The angle of described first junction plate (5) and second junction plate (6) lateral surface also is 90 °, and the extended line of the two meets at the center of circle of composite elastic body (7).
2. a kind of beam-column joint strengthening arc-shaped viscoelastic damper according to claim 1, it is characterized in that, in the described composite elastic body (7), two other ends of shearing steel plate (4) that are positioned at the outside are provided with restraining plate (9), this restraining plate (9) fuses with described two heads of shearing steel plate (4), forms the restraining structure of the rectangular frame in a cross section.
3. a kind of beam-column joint strengthening arc-shaped viscoelastic damper according to claim 2 is characterized in that, described restraining plate (9) is provided with gap X with composite elastic body (7), and gap X equals 1~5mm.
4. according to the described a kind of beam-column joint strengthening arc-shaped viscoelastic damper of one of claim 1~3, it is characterized in that being distributed with installing hole (8) on described first junction plate (5) and second junction plate (6).
CN2009202377261U 2009-10-23 2009-10-23 Strengthening arc-shaped viscoelastic damper for beam-column joint Expired - Lifetime CN201521041U (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102635175A (en) * 2012-05-03 2012-08-15 同济大学 Multipurpose structural seismic resistance energy consumption connecting piece
CN103790253A (en) * 2012-10-31 2014-05-14 沈阳建筑大学 Steel lead lamination node damper
CN105714671A (en) * 2016-03-13 2016-06-29 北京工业大学 Combined ultra-elastic overlapping multi-bending-plate vibration reduction energy consumption device for self anchoring suspension cable bridge
CN106760853A (en) * 2017-01-24 2017-05-31 中国矿业大学 A kind of bean column node involvement connects fan-shaped viscoelastic damper
CN106869357A (en) * 2017-03-23 2017-06-20 中国石油大学(华东) A kind of replaceable curved plate damper of two benches power consumption damping sheet
CN106869358A (en) * 2017-03-23 2017-06-20 中国石油大学(华东) Bean column node arc caulking gum damper
CN107269089A (en) * 2017-08-25 2017-10-20 上海应用技术大学 A kind of new armpit support metal energy-dissipating device of bean column node
CN107816129A (en) * 2017-11-28 2018-03-20 东南大学 The power consumption sleeve and its installation, method of work of a kind of prestressing force assembling type node
CN108301636A (en) * 2018-03-21 2018-07-20 北京交通大学 A kind of frictional arc damping limit bracing means and preparation method thereof
CN108412068A (en) * 2018-02-24 2018-08-17 广州大学 A kind of node amplification damper
CN110984419A (en) * 2020-01-15 2020-04-10 郑州大学 Energy consumption device with active adjustment and self-resetting capabilities and construction method thereof
CN114250881A (en) * 2022-01-17 2022-03-29 南京林业大学 '5 + 4' orthogonal viscoelastic damping device
CN115110826A (en) * 2022-07-28 2022-09-27 西安建筑科技大学 Assembled viscoelastic damping device and concrete frame node of restoration reinforcing

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102635175A (en) * 2012-05-03 2012-08-15 同济大学 Multipurpose structural seismic resistance energy consumption connecting piece
CN103790253A (en) * 2012-10-31 2014-05-14 沈阳建筑大学 Steel lead lamination node damper
CN105714671A (en) * 2016-03-13 2016-06-29 北京工业大学 Combined ultra-elastic overlapping multi-bending-plate vibration reduction energy consumption device for self anchoring suspension cable bridge
CN106760853A (en) * 2017-01-24 2017-05-31 中国矿业大学 A kind of bean column node involvement connects fan-shaped viscoelastic damper
CN106760853B (en) * 2017-01-24 2022-02-15 中国矿业大学 Beam column node dry connection fan-shaped viscoelastic damper
CN106869357B (en) * 2017-03-23 2018-06-29 中国石油大学(华东) A kind of replaceable curved plate damper of two benches energy consumption damping sheet
CN106869358B (en) * 2017-03-23 2019-02-15 中国石油大学(华东) Bean column node arc seal rubber damper
CN106869357A (en) * 2017-03-23 2017-06-20 中国石油大学(华东) A kind of replaceable curved plate damper of two benches power consumption damping sheet
CN106869358A (en) * 2017-03-23 2017-06-20 中国石油大学(华东) Bean column node arc caulking gum damper
CN107269089B (en) * 2017-08-25 2019-10-11 上海应用技术大学 A kind of novel armpit support metal energy-consuming device of bean column node
CN107269089A (en) * 2017-08-25 2017-10-20 上海应用技术大学 A kind of new armpit support metal energy-dissipating device of bean column node
CN107816129A (en) * 2017-11-28 2018-03-20 东南大学 The power consumption sleeve and its installation, method of work of a kind of prestressing force assembling type node
CN108412068A (en) * 2018-02-24 2018-08-17 广州大学 A kind of node amplification damper
CN108301636A (en) * 2018-03-21 2018-07-20 北京交通大学 A kind of frictional arc damping limit bracing means and preparation method thereof
CN108301636B (en) * 2018-03-21 2024-03-08 北京交通大学 Friction type arc damping limiting and reinforcing device and preparation method thereof
CN110984419A (en) * 2020-01-15 2020-04-10 郑州大学 Energy consumption device with active adjustment and self-resetting capabilities and construction method thereof
CN110984419B (en) * 2020-01-15 2021-05-07 郑州大学 Energy consumption device with active adjustment and self-resetting capabilities and construction method thereof
CN114250881A (en) * 2022-01-17 2022-03-29 南京林业大学 '5 + 4' orthogonal viscoelastic damping device
CN115110826A (en) * 2022-07-28 2022-09-27 西安建筑科技大学 Assembled viscoelastic damping device and concrete frame node of restoration reinforcing

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