CN201078035Y - Adjustable metal composite type low yield point antivibrator - Google Patents

Adjustable metal composite type low yield point antivibrator Download PDF

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Publication number
CN201078035Y
CN201078035Y CNU2007201699201U CN200720169920U CN201078035Y CN 201078035 Y CN201078035 Y CN 201078035Y CN U2007201699201 U CNU2007201699201 U CN U2007201699201U CN 200720169920 U CN200720169920 U CN 200720169920U CN 201078035 Y CN201078035 Y CN 201078035Y
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CN
China
Prior art keywords
power consumption
metal sheet
consumption metal
plate
yield point
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Expired - Lifetime
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CNU2007201699201U
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Chinese (zh)
Inventor
何浩祥
闫维明
纪金豹
苏亮
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Beijing University of Technology
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Beijing University of Technology
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Publication of CN201078035Y publication Critical patent/CN201078035Y/en
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Abstract

The utility model relates to an adjustable metallic compound type damper with a low yield point, which belongs to the shock resistant, shock-absorbing and wind resistant technology field for the structure engineering. The utility model mainly comprises a first energy-absorbing metal plate (1) made of material with yield strength more than 200 MPa, a second energy-absorbing metal plate (2) made of material with yield strength less than 200 MPa, upper and lower horizontal connecting steel plates (3) fixedly connected with the building structure, angle steel (4), a big high-strength bolt (5), a small high-strength bolt (6) and a hollowed-out form (7). The first energy-absorbing metal plate (1) and the second energy-absorbing metal plate (2) are arranged alternately, fixedly connected, and fixed between the upper and lower horizontal connecting steel plates (3). The adjustable metallic compound type damper with a low yield point is suitable for the supporting cross points as well as the combination positions between the beam and the wall or the column of the industrial and civil buildings. The damper has the advantages that the structure is simple, the installation and the adjustment are simple, the performance of each material can be exerted fully, and the proper low yield point can be arranged, and the energy-absorbing capability is strong.

Description

Adjustable metal composite type low-yield point damper
Technical field
The utility model relates to a kind of adjustable metal composite type low-yield point damper, belongs to Structural Engineering antidetonation and damping and wind resistance technical field.
Background technology
Building structure under macroseism and wind effect should have enough energy dissipation capacities, can avoid destroying.Traditional antidetonation and wind resisting structure system be by the damage consumed energy of structure and supporting member, cause structural element damage in various degree to occur even collapse, this be unreasonable also be unsafe.Structure energy-dissipating and shock-absorbing technology is a kind of new antidetonation prevention technique, in the structural system that adopts the energy-dissipating and shock-absorbing technology, some nonload bearing element of structure is designed to have particular components---the damper of big energy dissipation capacity, during the little shake of little wind, structure itself has enough lateral rigidities to satisfy instructions for use, and structure is in elastic stage; During big shake strong wind, along with the increase of structure lateral deformation, the damper rate is introduced into inelastic state, produces big damping, the earthquake of concentrated area dissipative structure or the wind energy that shakes, and the vibration of attenuating structure reaction rapidly, thus avoid or reduce the damage of agent structure.And the realization of energy-dissipating and shock-absorbing structure mainly depends on and develops simple and practical damper, developed a large amount of dampers both at home and abroad at present, as mild steel damper, frcition damper, viscous fluid damper, intelligent damper etc.Most existing dampers all belong to encapsulating structure, are unfavorable for on-the-spot the installation and debugging, and maintenance cost is higher; Owing to the higher damper of yield strength, can not give full play to the characteristic of material hysteretic energy under medium and small shake simultaneously, actual damping effect often is lower than design load.And lower its ductility of damper of yield strength is relatively poor, directly use and to enter the surrender stage very soon and can not energy-dissipating and shock-absorbing, therefore develop and promptly can have the damper that can guarantee enough ductility than low-yield again, and this damper is with low cost can fully to consume energy in earthquake again, and this will have great engineering significance.
The utility model content
The utility model proposes a kind of adjustable metal composite type low-yield point damper, this damper has lower yield stress, thereby just can enter plastic state under medium and small shake, fully realizes energy-dissipating and shock-absorbing.
To achieve these goals, the utility model has been taked following technical scheme.This damper mainly includes the level up and down that is connected with building structure and is connected steel plate 3 and is arranged on the power consumption metal sheet between the horizontal connecting plate 3 up and down, it is characterized in that, described power consumption metal sheet includes by yield strength and makes the first power consumption metal sheet 1 greater than the material of 200MPa and second power consumption metal sheet 2, the first power consumption metal sheets 1 and second power consumption metal sheet 2 interlaced arrangement made less than the material of 200MPa by yield strength and fixedly connected each other.
The described first power consumption metal sheet 1 is mild steel steel plate or aluminium alloy plate.
The described second power consumption metal sheet 2 be a mild steel steel plate or for zine plate or be stereotype.
The quantity of power consumption metal sheet and size should be determined according to general yield strength and the fixedly connected effect between the metal sheet that actual damping scheme requires compoboard to provide, but the quantity of the first power consumption metal sheet 1 and the second power consumption metal sheet 2 can not be less than 3 and 2 respectively.
The shape of the described first power consumption metal sheet 1 and the second power consumption metal sheet 2 is in full accord, and the combination of the two has: the first power consumption metal sheet 1 is the mild steel steel plate, and the second power consumption metal sheet 2 is a zine plate, and the thickness ratio of mild steel steel plate and zine plate is 0.3: 0.7; The first power consumption metal sheet 1 is the mild steel steel plate, and the second power consumption metal sheet 2 is a stereotype, and mild steel steel plate and stereotype thickness ratio are 0.4: 0.6; The first power consumption metal sheet 1 is an aluminium alloy plate, and the second power consumption metal sheet 2 is a zine plate, and aluminium alloy plate is 0.4: 0.6 with zine plate thickness ratio.
The described first power consumption metal sheet (1) and the second power consumption metal sheet (2) are provided with hollow out (7).
Described hollow out (7) be shaped as ellipse or circular or for X-shaped or be rhombus for parallel round rectangle.
Adopt epoxy resin or polyurethanes adhesive for metal bonding between the first power consumption metal sheet 1 and the second power consumption metal sheet 2.Also can adopt the metal adhesive bonding and be aided with high-strength bolt and fix.Can also directly connect with high-strength bolt.
The utility model makes up by the metal to different materials and makes this damper have lower yield stress, thereby makes damper enter plastic state prior to the main load-carrying member of structure under medium and small shake, carries out energy-dissipating and shock-absorbing.Thereby structure hollow out form can make the part of damper power consumption metal sheet form weak part and produce concentrated distortion, further improves energy dissipation capacity.
Compared with prior art, advantage of the present utility model is as follows:
1) the utility model will have the first power consumption metal sheet and the second power consumption metal sheet combination of different yield points, compare with the general damping device, yield strength reduces, under medium and small shake, can give full play to the good hysteresis performance of composite material, make damper can obtain lower yield stress and strain, the damper that consumes energy metal sheet 2 than independent employing second again has ductility preferably simultaneously.
2) adopt bolt to connect, can by adjusting the first power consumption metal sheet and the second power consumption plate thickness ratio, be convenient to install according to actual seismic design and maintenance requirement, upgrade and repair to obtain best surrender power consumption effect.
3) the material therefor cost is very low, does not have complicated structure, realizes the performance of expensive extremely low yield point mild steel damper with low cost
Description of drawings
Fig. 1 adjustable metal composite type low-yield point damper front schematic view
Fig. 2 adjustable metal composite type low-yield point damper power consumption metal sheet detail drawing
Fig. 3 schematic diagram of metal sheet when adopting the hollow out form of parallel round rectangle that consume energy
Schematic diagram when Fig. 4 consumes energy metal sheet employing X-shaped hollow out form
Schematic diagram when Fig. 5 consumes energy metal sheet employing rhombus hollow out form
Fig. 6 adjustable metal composite type low-yield point damper power consumption level connects the steel plate detail drawing
Fig. 7 adjustable metal composite type low-yield point damper side elevational view
Fig. 8 adjustable metal composite type low-yield point damper vertical view
Fig. 9 adjustable metal composite type low-yield point damper is installed in the schematic diagram on the structural element
Among the figure: 1, the first power consumption metal sheet, 2, the second power consumption metal sheet, 3, level connects steel plate up and down, 4, angle steel, 5, large-scale high-strength bolt, 6, small-sized high-strength bolt, 7, hollow out.
The specific embodiment
Embodiment 1:
Describe the specific embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Present embodiment mainly includes five to have than the first power consumption metal sheet 1 of high yield strength and has than second power consumption metal sheet 2, the angle steel 4 of low-yield and be connected steel plate 3 with level up and down with four.Level connection steel plate 3 is connected with building structure by large-scale high-strength bolt 5 up and down.Five first power consumption metal sheets 1 and four second power consumption metal sheet 2 interlaced arrangement, as Fig. 7, shown in Figure 8, the first power consumption metal sheet 1 and the second power consumption metal sheet, 2 shapes are identical, the first power consumption metal sheet 1 is the mild steel steel plate, the second power consumption metal sheet 2 is a zine plate, and the gross thickness ratio of the gross thickness of five blocks of mild steel steel plates and four zine plates is 0.3: 0.7.After the metal surface polishing that the first power consumption metal sheet 1 and the second power consumption metal sheet 2 are in contact with one another, coat epoxy resin or polyurethanes metal jelly, make the first power consumption metal sheet 1 and the second power consumption metal sheet 2 bonding, fix with small-sized high-strength bolt 6 again, at last, again with five first power consumption metal sheets 1 and four second power consumption metal sheet 2 overall fixed, another end face of angle steel 4 is connected steel plate 3 by large-scale high-strength bolt 5 and level up and down to be fixed an end face of angle steel 4 by high-strength bolt 5.
In the present embodiment first power consumption metal sheet is the mild steel steel plate, the second power consumption metal sheet is a zine plate, the shape of the first power consumption metal sheet 1 and the second power consumption metal sheet 2 is in full accord, two sides are the shape of inner concave curve, as Fig. 1~shown in Figure 5, thereby can obtain good power consumption effect greatly with the distortion of guaranteeing the metal sheet center.Experimental results show that when the thickness ratio of mild steel steel plate and zine plate was 0.3: 0.7, integral yield intensity was about 40% of mild steel steel plate yield strength.Offer hollow out on the first power consumption metal sheet 1 and the second power consumption metal sheet 2, for guaranteeing to have best surrender power consumption effect when specifically using, can adopt multiple hollow out form to the power consumption metal sheet, what present embodiment was selected for use is oval hollow out, and the appearance of the shape slyness of hollow out, minimizing wedge angle is concentrated to avoid occurring unsuitable stress.
As shown in Figure 9, the damper in the present embodiment can be installed to the support crosspoint of building structure or the junction of beam and wall or post.
Embodiment 2:
The structure of present embodiment and embodiment 1 are identical, and difference only is: the first power consumption metal sheet 1 is the mild steel steel plate, and the second power consumption metal sheet 2 is a stereotype, and the gross thickness of mild steel steel plate and stereotype gross thickness ratio are 0.4: 0.6.The hollow out of the first power consumption metal sheet 1 and the second power consumption metal sheet 2 is shaped as parallel round rectangle, as shown in Figure 3.
Embodiment 3:
The structure of present embodiment and embodiment 1 are identical, and difference only is: the first power consumption metal sheet 1 is aluminium alloy plate, and the second power consumption metal sheet 2 is a zine plate, and the gross thickness of aluminium alloy plate is 0.4: 0.6 with the gross thickness of zine plate ratio.The hollow out of the first power consumption metal sheet 1 and the second power consumption metal sheet 2 is shaped as rhombus, as shown in Figure 5.
Embodiment 4:
The structure of present embodiment and embodiment 1 are identical, and difference only is: the hollow out of the first power consumption metal sheet 1 and the second power consumption metal sheet 2 is shaped as X-shaped, as shown in Figure 4.
Embodiment 5:
The structure of present embodiment and embodiment 1 are identical, and difference only is: the first power consumption metal sheet 1 is the mild steel steel plate, and the second power consumption metal sheet 2 is the mild steel steel plate.

Claims (6)

1. adjustable metal composite type low-yield point damper, mainly including the level up and down that is connected with building structure is connected steel plate (3) and is arranged on the power consumption metal sheet between the horizontal connecting plate (3) up and down, it is characterized in that, described power consumption metal sheet includes the first second power consumption metal sheet of being made greater than the material of 200MPa by yield strength (2) that consumes energy metal sheet (1) and made less than the material of 200MPa by yield strength, and the first power consumption metal sheet (1) and second power consumption metal sheet (2) interlaced arrangement are also fixedlyed connected each other.
2. adjustable metal composite type low-yield point damper according to claim 1 is characterized in that: the described first power consumption metal sheet (1) is mild steel steel plate or aluminium alloy plate.
3. adjustable metal composite type low-yield point damper according to claim 1 is characterized in that: the described second power consumption metal sheet (2) is for the mild steel steel plate or for zine plate or for stereotype.
4. according to claim 2 or the described adjustable metal composite type low-yield point damper of claim 3, it is characterized in that: the shape of the described first power consumption metal sheet (1) and the second power consumption metal sheet (2) is in full accord, the combination of the two has: the first power consumption metal sheet (1) is the mild steel steel plate, the second power consumption metal sheet (2) is a zine plate, and the thickness ratio of mild steel steel plate and zine plate is 0.3: 0.7; The first power consumption metal sheet (1) is the mild steel steel plate, and the second power consumption metal sheet (2) is a stereotype, and mild steel steel plate and stereotype thickness ratio are 0.4: 0.6; The first power consumption metal sheet (1) is an aluminium alloy plate, and the second power consumption metal sheet (2) is a zine plate, and aluminium alloy plate is 0.4: 0.6 with zine plate thickness ratio.
5. adjustable metal composite type low-yield point damper according to claim 1 is characterized in that: the described first power consumption metal sheet (1) and the second power consumption metal sheet (2) are provided with hollow out (7).
6. adjustable metal composite type low-yield point damper according to claim 5 is characterized in that: described hollow out (7) be shaped as ellipse or for parallel round rectangle or for X-shaped or for rhombus.
CNU2007201699201U 2007-07-27 2007-07-27 Adjustable metal composite type low yield point antivibrator Expired - Lifetime CN201078035Y (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102392498A (en) * 2011-10-19 2012-03-28 沈阳建筑大学 Four-concave edge porous metal damper
CN102912888A (en) * 2012-11-20 2013-02-06 重庆大学 Woven metal damper
CN103388361A (en) * 2012-05-09 2013-11-13 南京丹普科技工程有限公司 Splint-type metal energy dissipation damper
CN104652253A (en) * 2015-02-12 2015-05-27 中铁二院工程集团有限责任公司 Buffer energy-consuming anti-drop-beam device for bridge
CN106013444A (en) * 2016-07-27 2016-10-12 南京工业大学 Assembled type wood structure X-shaped beam column energy dissipation joint

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102392498A (en) * 2011-10-19 2012-03-28 沈阳建筑大学 Four-concave edge porous metal damper
CN103388361A (en) * 2012-05-09 2013-11-13 南京丹普科技工程有限公司 Splint-type metal energy dissipation damper
CN102912888A (en) * 2012-11-20 2013-02-06 重庆大学 Woven metal damper
CN102912888B (en) * 2012-11-20 2014-08-06 重庆大学 Woven metal damper
CN104652253A (en) * 2015-02-12 2015-05-27 中铁二院工程集团有限责任公司 Buffer energy-consuming anti-drop-beam device for bridge
CN106013444A (en) * 2016-07-27 2016-10-12 南京工业大学 Assembled type wood structure X-shaped beam column energy dissipation joint

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C14 Grant of patent or utility model
AV01 Patent right actively abandoned

Effective date of abandoning: 20070727

C25 Abandonment of patent right or utility model to avoid double patenting