CN110965661A - Energy-consuming connecting beam - Google Patents
Energy-consuming connecting beam Download PDFInfo
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- CN110965661A CN110965661A CN201911187764.5A CN201911187764A CN110965661A CN 110965661 A CN110965661 A CN 110965661A CN 201911187764 A CN201911187764 A CN 201911187764A CN 110965661 A CN110965661 A CN 110965661A
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- energy
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 43
- 239000010959 steel Substances 0.000 claims abstract description 43
- 238000005265 energy consumption Methods 0.000 claims abstract description 30
- 239000002131 composite material Substances 0.000 claims abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 48
- 229910052802 copper Inorganic materials 0.000 claims description 48
- 239000010949 copper Substances 0.000 claims description 48
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 34
- 239000003190 viscoelastic substance Substances 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 5
- 230000008901 benefit Effects 0.000 description 7
- 239000011090 solid board Substances 0.000 description 7
- 238000010008 shearing Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000004020 conductor Substances 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to an energy-consuming connecting beam which comprises two end plates detachably connected with a non-energy-consuming section and an energy-consuming device connected with the end plates, wherein the energy-consuming device comprises a soft steel component and a damper, the soft steel component comprises a first soft steel piece and a second soft steel piece, one end of the first soft steel piece is connected with one end plate, one end of the second soft steel piece is connected with the other end plate, the damper is connected between the first soft steel piece and the second soft steel piece, and the damper is a composite body formed by an eddy current damper and a viscoelasticity damper. Compared with the prior art, the structure comfort level is improved, and the full-stage energy consumption is realized.
Description
Technical Field
The invention relates to the field of earthquake resistance, disaster prevention and reduction of civil engineering structures, in particular to an energy-consuming connecting beam.
Background
With the rapid development of social economy in China, high-rise buildings are more and more common, and the shear wall structure serving as a main lateral force resistant structure form of the high-rise building is easy to generate stress condensation in an earthquake, and wall limb yielding is fragile and damaged, so that huge disasters and losses can be caused. The ductile design of the shear wall structure is provided in the specification, the coupling beam is required to be used as a first defense line of a coupled shear wall anti-seismic system, the coupled shear wall anti-seismic system enters yield cycle plastic deformation firstly under the action of an earthquake, and earthquake input energy is dissipated to protect the safety of the shear wall main body structure. However, if the plastic damage accumulation of the connecting beam part is not reinforced or repaired in time, the damage and the damage of the connecting beam are inevitably caused, the shear wall is threatened by huge aftershock, and the repair after the disaster is difficult and uneconomical.
The eddy current damper utilizes the movement of the conductor mass block in a magnetic field to cut the magnetic induction line to generate induced electromotive force, generates eddy current to cause resistance heat effect to consume vibration energy, and simultaneously generates a new magnetic field with the direction opposite to the direction of the original magnetic field, so that the generated damping force with the direction opposite to the movement direction of the conductor also plays a role in vibration reduction. The viscoelastic material is a composite damping material which is prepared by taking a high molecular polymer as a matrix and matching additives and fillers. Typical viscoelastic damper vulcanizes between three steel sheets and bonds two-layer viscoelastic material and make, and two restraint steel sheets and the middle steel sheet of attenuator produce relative deformation and lead to viscoelastic material layer to produce shear deformation power consumption in deformation process. The mild steel material is applied to energy-consuming dampers in a large amount in engineering because of clear constitutive relation, stable performance and full hysteresis loop.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an energy-consuming connecting beam with high energy consumption in all stages.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides an energy consumption type is roof beam even, includes can dismantle two end plates of being connected and the power consumption device who is connected with the end plate with non-energy consumption section, power consumption device include mild steel subassembly and attenuator, the mild steel subassembly include first mild steel spare and second mild steel spare, an end plate is connected to the one end of first mild steel spare, another end plate is connected to the one end of second mild steel spare, connect the attenuator between first mild steel spare and the second mild steel spare, the attenuator be the complex body that electric eddy current attenuator and glutinous elastic damper constitute.
The first soft steel part and the second soft steel part are I-shaped steel, and the I-shaped surface of the I-shaped steel is connected with the end plate.
The flanges of the first soft steel part and the second soft steel part are flanges with concave edges at the edges.
The web plates of the first soft steel piece and the second soft steel piece are provided with holes.
The holes are a plurality of rectangular holes which are arranged in parallel.
The compound body include copper sheet layer and magnet layer, the copper sheet layer includes a plurality of copper, the magnet layer includes the magnet embedded plate of a plurality of embedding magnets, the copper inlays the solid board with magnet and passes through viscoelastic material cross fixed connection, copper and first mild steel fixed connection, magnet embedded plate and second mild steel fixed connection.
All the magnets are embedded in the same direction of magnetic poles.
The copper sheet layer is including connecting in the inlayer copper of the both sides of the web of first mild steel spare and the outer copper of being connected with the inlayer copper, the magnet layer including connect in the inlayer magnet embedded solid board of the both sides of the web of second mild steel spare and the outer magnet embedded solid board of being connected with inlayer magnet embedded solid board, inlayer magnet embedded solid board and outer magnet embedded solid board stretch out the part embedded magnet of web, the web portion that stretches out on copper sheet layer and magnet layer passes through viscoelastic material cross fixed connection, the web portion that does not stretch out of web portion and outer copper of inlayer copper passes through backing plate fixed connection, the web portion that does not stretch out of web portion and outer magnet embedded solid board of inlayer magnet passes through backing plate fixed connection.
The non-extended web part of the inner-layer copper plate, the non-extended web part of the outer-layer copper plate and the backing plate are connected through bolts, and the non-extended web part of the inner-layer magnet embedded plate, the non-extended web part of the outer-layer magnet embedded plate and the backing plate are connected through bolts.
Compared with the prior art, the invention has the following advantages:
(1) energy consumption in all stages: the complex body formed by the viscoelasticity damper and the eddy current damper can begin to consume energy under small shock, and the metal mild steel damper begins to consume energy under large shock, so that the structural comfort is improved, and the full-stage energy consumption is realized.
(2) The shearing energy consumption strength is large: the advantages of the three dampers in shearing energy consumption are combined, and the replaceable coupling beam with high shearing energy consumption strength is comprehensively formed.
(3) High-efficiency energy consumption: in the limited operating space of the traditional coupling beam, the viscoelastic damper and the eddy current damper are combined and then serially connected with the metal damper to consume energy in all stages, so that the high-efficiency energy consumption of the replaceable coupling beam is realized.
(4) Replaceable: the multi-stage combined energy dissipation damper is in detachable connection with the non-energy dissipation section end plate through the end plate, and is easy to detach and replace after the earthquake.
(5) All magnet magnetic poles are embedded in the same direction, so that the reverse force generated by the eddy current damper can be increased to the maximum extent, and the energy consumption is increased.
(6) The second soft steel part is I-shaped steel, and has better economical efficiency and stable energy consumption capability.
(7) The flange is provided with a concave flange at the edge to control the energy consumption position.
(8) The webs of the first soft steel piece and the second soft steel piece are provided with holes, so that the ductility of the component is improved while the energy consumption capacity is improved.
(9) The holes are a plurality of rectangular holes which are arranged in parallel, and the construction operation is convenient and simple.
(10) The eddy current damper and the viscoelastic damper form a complex in a cross embedding mode, are different from the mechanical arrangement of the eddy current damper and the viscoelastic damper, and have the advantage of improving the energy consumption capability in a limited space.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
reference numerals:
1 is an end plate; 2 is a first soft steel piece; 3 is a high-strength bolt; 41 is an inner copper plate; 42 is an outer copper plate; 51 is an inner layer magnet embedded plate; 52 is an outer magnet embedded plate; 6 is a backing plate; 7 is a viscoelastic material; 8 is a magnet; and 9 is a second soft steel piece.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Examples
The embodiment provides a viscoelasticity, removable even roof beam of high-efficient power consumption type of current vortex combination complete stage, include can dismantle two end plates 1 of being connected and the power consumption device who is connected with end plate 1 with non-power consumption section, power consumption device includes mild steel subassembly (metal damper) and attenuator, the mild steel subassembly includes first mild steel spare 2 and second mild steel spare 9, an end plate 1 is connected to the one end of first mild steel spare 2, another end plate 1 is connected to the one end of second mild steel spare 9, connect the attenuator between first mild steel spare 2 and the second mild steel spare 9, the attenuator is the complex body that current vortex attenuator and viscoelasticity attenuator are constituteed. Combining the shearing energy consumption advantages of the three dampers, and comprehensively forming a replaceable coupling beam with high shearing energy consumption strength; the eddy current damper and the viscoelastic damper form a complex in a cross embedding mode, are different from the mechanical arrangement of the eddy current damper and the viscoelastic damper, and have the advantage of improving the energy consumption capability in a limited space.
The complex body includes copper sheet layer and magnet layer, and the copper sheet layer includes a plurality of copper, and the magnet layer includes a plurality of magnet embedded plates that imbed magnet 8, and the copper inlays with magnet and fixes the board and passes through 7 cross fixed connection of viscoelastic material, copper and 2 fixed connection of first mild steel spare, magnet embedded plate and 9 fixed connection of second mild steel spare.
The copper sheet layer is including connecting in the inlayer copper 41 of the both sides of the web of first mild steel piece 2 and the outer copper 42 of being connected with inlayer copper 41, the magnet layer is including connecting in the inlayer magnet embedded plate 51 of the both sides of the web of second mild steel piece 9 and the outer magnet embedded plate 52 of being connected with inlayer magnet embedded plate 51, inlayer magnet embedded plate 51 and outer magnet embedded plate 52 stretch out the partial embedded magnet 8 of web, the part that the web was stretched out on the copper sheet layer and the part that the magnet layer stretched out the web are through the cross fixed connection of viscoelastic material 7, the part that the web was not stretched out on inlayer copper 41 and outer copper 42 pass through backing plate 6 fixed connection, the part that the web was not stretched out on inlayer magnet embedded plate 51 and the part that outer magnet embedded plate 52 did not stretch out the web pass through backing plate 6 fixed connection.
The end plate 1 is connected with the non-energy consumption section through a bolt.
The first soft steel part 2 and the second soft steel part 9 are I-shaped steel, and the I-shaped surface of the I-shaped steel is connected with the end plate 1. The I-shaped steel has stable mechanical property and excellent economical efficiency.
The flanges of the first and second soft steel parts 2 and 9 are flanges with concave edges. Has the advantage of controllable energy consumption position.
The webs of the first and second soft steel members 2, 9 are provided with holes, which are a plurality of rectangular holes arranged in parallel. The energy-saving construction method has the advantages of concentrated energy consumption, strong energy consumption capability, stable performance after yielding, convenience in construction and the like.
All the magnets 8 are embedded in the same direction, so that the reverse force generated by the eddy current damper can be increased to the maximum extent, and the energy consumption is increased.
The part of the inner copper plate 41 not extending out of the web, the part of the outer copper plate 42 not extending out of the web and the backing plate 6 are connected by high-strength bolts 3, and the part of the inner magnet embedded and fixed plate 51 not extending out of the web, the part of the outer magnet embedded and fixed plate 52 not extending out of the web and the backing plate 6 are connected by high-strength bolts 3.
The principle of the eddy current damper is that when the copper plate and the magnet 8 generate relative displacement, the copper plate in the magnetic field continuously cuts magnetic induction lines to form eddy current, and resistance heat effect is generated; the principle of the viscoelastic material damper is that when the viscoelastic material generates relative shearing deformation along with the constraint plates on the two sides, the viscoelastic material generates tensile deformation and energy consumption, and meanwhile, certain lateral rigidity can be provided. The eddy current and the energy consumption of the viscoelastic material are related to the vibration speed, the larger the speed is, the larger the energy consumption is, so that the two dampers are speed type dampers and can play a role when the small-vibration structure is displaced for a small time, the displacement type metal dampers are connected in series to realize full-stage energy consumption, and meanwhile, the comfort level of the structure under the small vibration and the wind vibration and the safety of the main structure under the large vibration are ensured.
During construction, the end plate 1, the I-shaped steel, the copper plate and the magnet embedded plate can be assembled in advance, the magnet 8 is embedded and fixed in the magnet embedded plate after positioning, and the viscoelastic material is arranged between the copper plate and the magnet embedded plate.
Claims (9)
1. The utility model provides an energy consumption type is roof beam even, includes two end plates (1) that can dismantle the connection with non-energy consumption section and the power consumption device who is connected with end plate (1), a serial communication port, power consumption device include mild steel subassembly and attenuator, the mild steel subassembly include first mild steel spare (2) and second mild steel spare (9), an end plate (1) is connected to the one end of first mild steel spare (2), another end plate (1) is connected to the one end of second mild steel spare (9), connect the attenuator between first mild steel spare (2) and second mild steel spare (9), the attenuator be the complex body that electric eddy current attenuator and viscoelasticity attenuator constitute.
2. The energy dissipation type coupling beam as claimed in claim 1, wherein the first flexible steel member (2) and the second flexible steel member (9) are I-shaped steel, and the I-shaped steel is connected with the end plate (1) through the I-shaped surface.
3. An energy dissipating coupling beam according to claim 2, characterized in that the flanges of the first and second soft steel members (2, 9) are flanges with a recess at the edge.
4. An energy dissipating coupling beam according to claim 2, characterized in that the webs of the first (2) and second (9) soft steel members are provided with holes.
5. The coupling beam as claimed in claim 4, wherein the holes are a plurality of rectangular holes arranged in parallel.
6. The energy dissipation type coupling beam as claimed in claim 2, wherein the composite body comprises a copper plate layer and a magnet layer, the copper plate layer comprises a plurality of copper plates, the magnet layer comprises a plurality of magnet embedded plates embedded with magnets (8), the copper plates and the magnet embedded plates are fixedly connected in a crossed manner through a viscoelastic material (7), the copper plates are fixedly connected with the first soft steel member (2), and the magnet embedded plates are fixedly connected with the second soft steel member (9).
7. An energy dissipating coupling beam according to claim 6, characterized in that all the magnets (8) are embedded in the same direction.
8. The energy dissipation type coupling beam as claimed in claim 6, wherein the copper plate layer comprises an inner copper plate (41) connected to both sides of the web of the first soft steel member (2) and an outer copper plate (42) connected to the inner copper plate (41), the magnet layer comprises an inner magnet embedded plate (51) connected to both sides of the web of the second soft steel member (9) and an outer magnet embedded plate (52) connected to the inner magnet embedded plate (51), the inner magnet embedded plate (51) and the outer magnet embedded plate (52) extend out of the web part of the embedded magnet (8), the extending web part of the copper plate layer and the extending web part of the magnet layer are cross-fixedly connected through the viscoelastic material (7), the non-extending web part of the inner copper plate (41) and the non-extending web part of the outer copper plate (42) are fixedly connected through the backing plate (6), the part, which does not extend out, of the web of the inner magnet embedded plate (51) is fixedly connected with the part, which does not extend out, of the web of the outer magnet embedded plate (52) through a backing plate (6).
9. The coupling beam as claimed in claim 8, wherein the unextended web portion of the inner copper plate (41), the unextended web portion of the outer copper plate (42) and the backing plate (6) are connected by bolts, and the unextended web portion of the inner magnet fixing plate (51), the unextended web portion of the outer magnet fixing plate (52) and the backing plate (6) are connected by bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911187764.5A CN110965661A (en) | 2019-11-28 | 2019-11-28 | Energy-consuming connecting beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911187764.5A CN110965661A (en) | 2019-11-28 | 2019-11-28 | Energy-consuming connecting beam |
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| Publication Number | Publication Date |
|---|---|
| CN110965661A true CN110965661A (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911187764.5A Pending CN110965661A (en) | 2019-11-28 | 2019-11-28 | Energy-consuming connecting beam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338468A (en) * | 2021-07-05 | 2021-09-03 | 清华大学 | Double-stage shearing damper and design method thereof |
| CN115162553A (en) * | 2022-08-09 | 2022-10-11 | 郑州大学 | Combined toothed plate, disc spring and soft steel self-resetting energy dissipation damper |
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|---|---|---|---|---|
| CN107905400A (en) * | 2017-09-27 | 2018-04-13 | 同济大学 | It is a kind of to perceive the replaceable energy consumption coupling beam of Eddy Current Type certainly |
| CN108678478A (en) * | 2018-04-20 | 2018-10-19 | 同济大学 | A kind of magnetic rheology elastic body formula coupling beam damper |
| CN109057144A (en) * | 2018-07-03 | 2018-12-21 | 同济大学 | A kind of Multifunctional replaceable coupling beam structure |
| CN211572241U (en) * | 2019-11-28 | 2020-09-25 | 同济大学 | Energy-consuming connecting beam |
-
2019
- 2019-11-28 CN CN201911187764.5A patent/CN110965661A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905400A (en) * | 2017-09-27 | 2018-04-13 | 同济大学 | It is a kind of to perceive the replaceable energy consumption coupling beam of Eddy Current Type certainly |
| CN108678478A (en) * | 2018-04-20 | 2018-10-19 | 同济大学 | A kind of magnetic rheology elastic body formula coupling beam damper |
| CN109057144A (en) * | 2018-07-03 | 2018-12-21 | 同济大学 | A kind of Multifunctional replaceable coupling beam structure |
| CN211572241U (en) * | 2019-11-28 | 2020-09-25 | 同济大学 | Energy-consuming connecting beam |
Non-Patent Citations (1)
| Title |
|---|
| 周云等: "可更换连梁抗震性能研究与应用进展", 工程抗震与加固改造, vol. 39, no. 03, 30 June 2017 (2017-06-30), pages 1 - 7 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338468A (en) * | 2021-07-05 | 2021-09-03 | 清华大学 | Double-stage shearing damper and design method thereof |
| CN115162553A (en) * | 2022-08-09 | 2022-10-11 | 郑州大学 | Combined toothed plate, disc spring and soft steel self-resetting energy dissipation damper |
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