CN101736828B - Beam-column joint reinforcing sector lead viscoelastic damper - Google Patents
Beam-column joint reinforcing sector lead viscoelastic damper Download PDFInfo
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- CN101736828B CN101736828B CN2009102099773A CN200910209977A CN101736828B CN 101736828 B CN101736828 B CN 101736828B CN 2009102099773 A CN2009102099773 A CN 2009102099773A CN 200910209977 A CN200910209977 A CN 200910209977A CN 101736828 B CN101736828 B CN 101736828B
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Abstract
The invention provides a beam-column joint reinforcing sector lead viscoelastic damper. The damper consists of a compound elastomer (7), a first connecting plate (5) and a second connecting plate (6), wherein the first connecting plate (5) and the second connecting plate (6) are respectively arranged at two ends of the compound elastomer (7), the compound elastomer (7) consists of an elastomer (3), a shearing steel plate (4) and a columnar lead core (10), wherein the elastomer (3) and the shearing steel plate (4) are alternatively superposed, and the columnar lead core (10) transversely passes through the elastomer (3) and the shearing steel plate (4). The beam-column joint reinforcing sector lead viscoelastic damper is characterized in that: the compound elastomer (7) is in shape of a sector with central angle of 90 degrees, and each elastomer (3) and the shearing steel plate (4) are in shape of sector concentric with the compound elastomer (7); the included angle of outer side surfaces of the first connecting plate (5) and the second connecting plate (6) are 90 degrees, and the extending lines of the first connecting plate (5) and the second connecting plate (6) are crossed at the center of a circle of the compound elastomer (7). In the invention, the damper can be directly installed in a lower axilla or/and an upper axilla of a beam and a column of a frame structure so as to achieve the shockproof reinforcement of the beam and the column joint of the frame structure.
Description
Technical field:
The present invention relates to the building unit of a kind of vibration proof or vibrations, be specifically related to the Viscoelastic Composite damper, it is widely used in building damping, earthquake structural engineering field.
Background 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.In addition, also there are 2 deficiencies in notice of authorization number for the technical scheme of the utility model patent of CN2276584Y, the one, the described lead for retractable pencil that laterally passes through described composite elastic body only is one, and be positioned on its axial line, therefore when described composite elastic body when elastomeric axial line produces torsional deformation, shear steel plate and just lose damping action around lead for retractable pencil rotates (lead for retractable pencil does not produce the horizontal shear hysteresis and is out of shape); The 2nd, be positioned at the described composite elastic body outside two shearing steel plates and not only bear shear action but also bear effect of contraction, and its another free-ended outside does not have any constraint, obviously can't bear bigger restraint forces.
Summary of the invention:
In view of there is above-mentioned deficiency in prior art, technical problem to be solved by this invention provides a kind of lead viscoelastic damper that is applicable to beam-column joint reinforcing.
The technical scheme that the present invention addresses the above problem is as follows:
A kind of beam-column joint reinforcing sector lead viscoelastic damper, this damper by composite elastic body and first junction plate and second junction plate that are located at composite elastic body two respectively form, wherein, composite elastic body is by the elastic body that is superimposed and shear steel plate and the column lead for retractable pencil that crosses elastic body and shear steel plate is formed, shear in the steel plates for every adjacent two in the described composite elastic body, one extends to first junction plate and fixedly connected with it to one, another piece extends to second junction plate and fixedly connected with it to the other end, and have two be positioned at the outside the shearing steel plate with fixedly connected with a plate, it is characterized in that, described composite elastic body is that central angle is 90 ° fan-shaped, each elastic body and shear steel plate and be with composite elastic body concentric fan-shaped; 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 of the present invention, two another free ends of not fixedlying connected with junction plate of shearing steel plate that are positioned at the outside are provided with two restraining plates, two restraining plates 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.
Because the distortion of the beam and column when earthquake or wind carry in the building structure is very complicated, therefore whole damper must bear perpendicular to the torsion of column lead for retractable pencil and make composite elastic body produce torsional deformation.To shear steel plate and can also can shear the column lead for retractable pencil well and dissipation energy when the described torsional deformation in order to make, of beam-column joint reinforcing sector lead viscoelastic damper of the present invention is additional to is characterized in that described column lead for retractable pencil is at least two.The size of the diameter of described column lead for retractable pencil and the visual damping force of quantity and the sectional dimension of damper determine, big and damper dimensional requirement hour can increase the quantity of column lead for retractable pencil when the needs damping force, perhaps increases the diameter of column lead for retractable pencil, otherwise otherwise.
Elastic body in the beam-column joint reinforcing sector lead viscoelastic damper of the present invention can be that the various viscoelastic materials of using always (as rubber) also can be the composite materials that viscoelastic material and steel sheet layer are superimposed to form.
Beam-column joint reinforcing sector lead viscoelastic damper of the present invention, because being central angle, wherein said composite elastic body is 90 ° fan-shaped, be welded on rear damper on first junction plate or second junction plate also for central angle is 90 ° fan-shaped, 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 present invention has whole damper and does 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 are the structural representation of a specific embodiment of beam-column joint reinforcing sector lead viscoelastic damper of the present invention, and wherein, Fig. 1 is a front view, and Fig. 2 is a left view, and Fig. 3 is a vertical view, and Fig. 4 is the A-A sectional drawing of Fig. 1.
Fig. 5 and Fig. 6 are the structural representation of an elastomeric specific embodiment of the present invention, and wherein Fig. 5 is a front view,
Fig. 6 is the C-C sectional drawing of Fig. 5.
Fig. 7 is the structural representation of another specific embodiment of beam-column joint reinforcing sector lead viscoelastic damper of the present invention.
Fig. 8～11 are the structural representation of the another specific embodiment of beam-column joint reinforcing sector lead viscoelastic damper of the present invention, and wherein Fig. 8 is a front view, and Fig. 9 is a left view, and Figure 10 is a vertical view, and Figure 11 is the B-B sectional drawing of Fig. 8.
Figure 12 is the schematic diagram of beam-column joint reinforcing sector lead viscoelastic damper of the present invention a kind of concrete application in frame construction.
Figure 13 is beam-column joint reinforcing sector lead viscoelastic damper of the present invention another kind of concrete schematic diagram of using in frame construction.
The specific embodiment:
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
Shown in Fig. 1～4, composite elastic body 7 is sheared steel plates 4 by 4 elastic bodys 3 that are superimposed and 5 and the column lead for retractable pencil 10 that crosses elastic body 3 and shear steel plate 4 is formed, shear in the steel plate 4 for described 5, 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.
Referring to Fig. 1, composite elastic body 7 is 90 ° fan-shaped for central angle, wherein each elastic body 3 and shear steel plate 4 and be and concentric fan-shaped of composite elastic body 7; First junction plate 5 and second junction plate 6 are rectangular steel plates, both sides are respectively equipped with installing hole 8, after being welded to the elongated end of shearing steel plate 4 in the composite elastic body 7, its lateral surface is that the angle of bearing surface also is 90 °, and the extended line of the two meets at the center of circle of composite elastic body 7; Three column lead for retractable pencils 10 cross 4 elastic bodys 3 and 5 respectively and shear steel plate 4 and distribute along the arc length direction of composite elastic body 7, on the angular bisector of a middle central angle that is positioned at fan-shaped composite elastic body 7, other two be symmetrically distributed in the middle of one both sides.Be positioned at the shearing steel plate 4 of composite elastic body 7 two sides, the hole that wherein wears column lead for retractable pencil 10 on one is a blind hole, the hole that wears column lead for retractable pencil 10 on another piece is a through hole, column lead for retractable pencil 10 is worn to the blind hole of opposite side by through hole, secured by the capping 11 that is located at described through hole oral area, wherein capping 11 is being provided with on the shearing steel plate 4 of through hole by screw.
The preparation method of Fig. 1～4 illustrated embodiments is as described below: make the preformed hole that wears column lead for retractable pencil 10 on request on elastic body 3 and shearing steel plate 4 earlier, press the size of composite elastic body 7 again and make metal die, put into elastic body 3 and shear steel plate 4 by order shown in Figure 4 then, last integral body is put to vulcanizing equipment and is carried out high temperature vulcanized moulding.After composite elastic body 7 took out from metal die, insertion column lead for retractable pencil 10 also pushed closely knit back and with capping 11 column lead for retractable pencil 10 is sealed, and with screw capping 11 is fixed on the shearing steel plate 4 that is provided with through hole again.At last first junction plate 5 and second junction plate 6 are welded on shearing steel plate 4 outward extending ends.
4 elastic bodys 3 in Fig. 1～4 illustrated embodiments are made by rubber, also can be superimposed to form by viscoelastic material rubber layer 1 and steel sheet layer 2 with reference to Fig. 5～6, and drill the preformed hole 12 of establishing column lead for retractable pencil 10 by the diagram requirement.
Embodiment illustrated in fig. 7 is to omit both sides column lead for retractable pencil 10 on the basis of Fig. 1～4 illustrated embodiments, and the diameter of the column lead for retractable pencil 10 in the middle of increasing, and other structure is all identical with Fig. 1～4 illustrated embodiments.
Fig. 8～11 illustrated embodiments are to improve to obtain on the basis of Fig. 1～4 illustrated embodiments, and following structure in addition is all identical with 1～4 illustrated embodiment.
Referring to Fig. 8～11, two free ends of not fixedlying connected with second junction plate 6 of shearing steel plate 4 that are positioned at the outside in the composite elastic body 7 are provided with two restraining plates 9, the head of two restraining plates 9 and two shearing steel plates 4 is integrally welded, forms the restraining structure of the rectangular frame in a cross section.Referring to Figure 11, be provided with gap X between restraining plate 9 and the composite elastic body 7, this gap X equals 4mm.
As Figure 12 and shown in Figure 13, beam-column joint reinforcing sector lead viscoelastic damper 13 of the present invention can be installed in the beam 15 and the interior (see figure 8) of the following armpit of post 14 of frame construction, also can be installed in the last armpit and the interior (see figure 9) of following armpit of beam 15 with the post 14 of frame construction, concrete job practices depends on the circumstances.If new construction can be fixed on described beam-column joint reinforcing sector lead viscoelastic damper 13 in the armpit up and down of beam 15 and post 14 with bolt 16 at beam 15 and post 14 set aside pre-embedded spares; If aseismatic reinforcement engineering, can be at outsourcing connector on beam 15 and the post 14, in the up and down armpit of bolt 16 with described beam-column joint reinforcing sector lead viscoelastic damper 13 clamped beams 15 and post 14.
Claims (5)
1. beam-column joint reinforcing sector lead viscoelastic damper, this damper is made up of composite elastic body (7) and first junction plate (5) and second junction plate (6) that are located at composite elastic body (7) two respectively, wherein, composite elastic body (7) is by the elastic body that is superimposed (3) and shear steel plate (4) and cross elastic body (3) and the column lead for retractable pencil (10) of shearing steel plate (4) is formed, shear in the steel plates (4) for every adjacent two in the described composite elastic body (7), one extends to first junction plate (5) and fixedly connected with it to one, another piece extends to second junction plate (6) and fixedly connected with it to the other end, and have two be positioned at the outside shearing steel plate (4) with fixedly connected with a plate, it is characterized in that, described composite elastic body (7) is 90 ° fan-shaped for central angle, each elastic body (3) and shear steel plate (4) and be and concentric fan-shaped 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 reinforcing sector lead viscoelastic damper according to claim 1, it is characterized in that, two another free ends of not fixedlying connected with junction plate of shearing steel plate (4) that are positioned at the outside in the described composite elastic body (7) are provided with two restraining plates (9), two restraining plates (9) fuse with described two heads of shearing steel plate (4), form the restraining structure of the rectangular frame in a cross section.
3. a kind of beam-column joint reinforcing sector lead 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 reinforcing sector lead viscoelastic damper of one of claim 1～3, it is characterized in that described column lead for retractable pencil (10) is at least two.
5. a kind of beam-column joint reinforcing sector lead viscoelastic damper according to claim 4 is characterized in that described elastic body (3) is superimposed to form by viscoelastic material layer (1) and steel sheet layer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102099773A CN101736828B (en) | 2009-10-23 | 2009-10-23 | Beam-column joint reinforcing sector lead viscoelastic damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102099773A CN101736828B (en) | 2009-10-23 | 2009-10-23 | Beam-column joint reinforcing sector lead viscoelastic damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101736828A CN101736828A (en) | 2010-06-16 |
| CN101736828B true CN101736828B (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102099773A Expired - Fee Related CN101736828B (en) | 2009-10-23 | 2009-10-23 | Beam-column joint reinforcing sector lead viscoelastic damper |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835387B (en) * | 2014-03-17 | 2016-03-09 | 河北联合大学 | Assembling frame structure node frcition damper |
| CN105133746A (en) * | 2015-09-30 | 2015-12-09 | 河南省电力勘测设计院 | K-shaped shearing damper |
| CN106285140B (en) * | 2016-09-22 | 2018-06-22 | 西安建筑科技大学 | A kind of fan-shaped friction of joint energy consumer of the adjustable frictional force based on friction plate |
| CN106320560B (en) * | 2016-11-11 | 2020-09-11 | 华东建筑设计研究院有限公司 | Damper with assembled structure |
| CN106677587B (en) * | 2017-01-24 | 2022-02-15 | 中国矿业大学 | Fan-shaped viscoelastic damper is connected to assembled frame roof beam post |
| CN106948480B (en) * | 2017-03-02 | 2023-02-21 | 广州大学 | Beam column node structure and assembled house |
| CN107100407B (en) * | 2017-06-23 | 2022-07-05 | 大连理工大学 | Fan-shaped supporting rotary amplification type node shear damper |
| CN108691429B (en) * | 2018-06-29 | 2023-10-13 | 福州大学 | Construction method of assembly type frame node anti-seismic reinforcing device |
| CN115217224A (en) * | 2022-08-16 | 2022-10-21 | 福建众腾建设工程有限公司 | Self-resetting shock insulation support |
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2009
- 2009-10-23 CN CN2009102099773A patent/CN101736828B/en not_active Expired - Fee Related
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| CN101736828A (en) | 2010-06-16 |
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