CN211850108U - Lasso supports outrigger truss energy dissipation shock mitigation system - Google Patents
Lasso supports outrigger truss energy dissipation shock mitigation system Download PDFInfo
- Publication number
- CN211850108U CN211850108U CN201921960332.9U CN201921960332U CN211850108U CN 211850108 U CN211850108 U CN 211850108U CN 201921960332 U CN201921960332 U CN 201921960332U CN 211850108 U CN211850108 U CN 211850108U
- Authority
- CN
- China
- Prior art keywords
- support
- damper
- lasso
- hinged
- noose
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
A lasso support boom truss energy dissipation and shock absorption system comprises a core cylinder, a frame column and a boom truss connected between the core cylinder and the frame column, wherein the end part of the boom truss close to the frame column is connected with a lasso support shock absorption mechanism and comprises a lasso first support, a lasso second support and a damper; one end of the damper is hinged with the common end of the first support and the second support of the lasso, and the other end of the damper is hinged with the outer end of the lower chord of the outrigger truss through a third lug plate or hinged with the upper frame beam through a fourth lug plate; or the fifth lug plate is hinged with the joint of the upper frame beam and the frame column. The energy dissipation and shock absorption system solves the problem of unfavorable shock resistance of the rigid reinforcing layer, and is good in shock absorption effect, high in working efficiency and low in engineering cost.
Description
Technical Field
The utility model relates to an energy dissipation shock attenuation for building structure especially relates to a lasso supports outrigger truss energy dissipation shock mitigation system in super high-rise building.
Background
The energy dissipation and shock absorption technology is one of the mature high and new technologies which are widely popularized and applied in the world seismic engineering world at present, a damper serving as a main component of energy dissipation and shock absorption is widely applied to the energy dissipation and shock absorption technology, but the damper can play a good energy dissipation effect only when the damper is displaced greatly, and when the damper is used in structures such as shear walls and frame cylinders which are displaced slightly, a large number of dampers need to be arranged when the structure achieves a certain shock absorption effect, so that the defects of high price and low working efficiency exist, and the application of the damper in the structures is severely limited.
In order to exert the working efficiency of the damper to the maximum extent, domestic and foreign scholars propose various arrangement mechanisms, wherein the damper is vertically arranged on the outrigger truss and is a common arrangement mechanism (see the attached figure 8), and the problems exist:
1. the outrigger truss is a rigid reinforced layer and is unfavorable for earthquake resistance
2. Because the amplification effect of the damping device is in direct proportion to the ratio of the length of the outrigger truss to the height between floors, the displacement amplification factor is small (generally only can reach 2), the working efficiency is low, and the damping effect is poor.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the energy dissipation and shock absorption system for the boom truss of the lasso support mechanism is simple in structure, economical and practical and is used for overcoming the defects in the prior art.
The utility model provides a technical scheme that above-mentioned problem adopted is:
a lasso support boom truss energy dissipation and shock absorption system comprises a core barrel, a frame column, an upper frame beam, a lower frame beam and a boom truss, wherein the upper frame beam, the lower frame beam and the boom truss are connected between the core barrel and the frame column; the damper is connected in one of three ways:
the first connection mode is as follows: one end of the damper is hinged with the common end of the first support and the second support of the lasso, and the other end of the damper is hinged with the outer end of the lower chord of the outrigger truss through a third ear plate;
the second connection mode is as follows: one end of the damper is hinged with the common end of the first support and the second support of the lasso, and the other end of the damper is hinged with the upper frame beam through a fourth lug plate;
the third connection mode is as follows: one end of the damper is vertically connected with the second support of the lasso, and the other end of the damper is hinged with the joint of the upper frame beam and the frame column through the fifth lug plate.
The further technical scheme is as follows: when the damper is in a first connection mode: the included angle between the damper and the second support of the lasso is 90 degrees, and the inclination angle of the second support of the lasso relative to the horizontal direction is theta1The inclination angle of the first support of the lasso relative to the vertical direction is theta2The damper length L and the noose second support length L4 satisfy the following relationship:
L＝L4·tanθ1
the displacement amplification factor f of the damper mechanism 3 is L2 · sin θ2/L1·cos(θ1+θ2)，
In the formula: l1 is boom truss height, L2 is boom truss upper end extending from core barrel, inclination angle theta2Is 30 to 60 degrees, and the dip angle theta1Is 20-40 degrees.
Further: the outrigger truss includes chord member, lower chord member and oblique web member, oblique web member is oblique diagonal angle cross connection and is in between chord member and the lower chord member, first otic placode is connected through the end plate in upper chord member outer end and oblique web member handing-over department, and first otic placode passes through the axis of rotation and the first support of noose is articulated, the end plate upper end is equipped with the limiting plate, and the limiting plate other end links to each other with the frame roof beam.
Since the technical scheme is used, the utility model relates to a lasso supports outrigger truss energy dissipation shock mitigation system has following beneficial effect:
1. the utility model connects the lasso damping mechanism comprising the lasso first support and the second support and the damper at the end part of the traditional outrigger truss close to the frame column, thereby not only solving the problem of unfavorable anti-seismic design brought by the rigid reinforcing layer, but also fully playing the energy dissipation and damping effects of the damper and the advantages of the outrigger truss;
2. under the action of earthquake and wind load, the super high-rise structure can generate bending deformation and interlaminar shearing deformation, the structure generates interlaminar displacement, the tail end of the outrigger truss is driven to move up and down to generate vertical deformation, and under the combined action of the vertical deformation and the interlaminar shearing deformation of the structure, the lasso shock absorption mechanism performs opening and closing movement, so that the generated vertical deformation amplifies the interlaminar displacement to two ends of the damper again through the lasso shock absorption mechanism, the energy consumption of the damper is increased, the displacement amplification coefficient can reach about 6.0, the shock absorption effect is good, and the working efficiency is high;
3. compared with the direct combination of the dampers and the outrigger truss, when the same number and the same damper parameters are arranged in the super high-rise building, the energy consumption of the dampers can be increased, and meanwhile, the additional damping ratio of the structure can be improved under the action of earthquake and wind load, so that the safety of the structure is ensured; similarly, for the same structure under the same earthquake and wind load, the number of the dampers can be reduced, so that the engineering cost is reduced, and better economic benefit is obtained;
4. the first otic placode is connected through the end plate in last chord member outer end and oblique web member handing-over department, and first otic placode passes through the axis of rotation and is articulated with the first support of lasso, and the end plate upper end is equipped with the limiting plate, and the limiting plate other end links to each other with the frame roof beam, can guarantee that cantilever supporting mechanism does not take place the outer unstability of plane.
The technical features of a lasso support boom truss energy dissipation and shock absorption system of the present invention will be further described with reference to the accompanying drawings and examples.
Drawings
Fig. 1-4 are schematic structural views of a lasso support boom truss energy dissipation and shock absorption system of the utility model:
fig. 1 is an overall structure, fig. 2 is a structure of a first coupling manner of a damper, fig. 3 is a structure of a second coupling manner of a damper, and fig. 4 is a structure of a third coupling manner of a damper;
FIG. 5 is a schematic view of the displacement of the damper (where the solid lines indicate the positions of the rods when undeformed and the dashed lines indicate the positions of the rods after deformation);
FIG. 6 is a schematic view of a first connection mode of the damper with an inclined angle structure;
FIG. 7 is a schematic view of the overall structure of the original structure;
FIG. 8 is a schematic view of the structure of the damper vertically arranged in the original outrigger truss;
in the figure:
1-core tube, 2-frame column, 3-damping mechanism, 31-lasso first support, 32-lasso second support, 33-damper, 34-first otic placode, 35-second otic placode, 36-third otic placode, 37-fourth otic placode, 38-fifth otic placode, 4-outrigger truss, 41-upper chord, 42-diagonal web member, 43-lower chord, 44-end plate, 5-upper frame roof beam, 6-lower frame roof beam, 7-first nodal plate, 8-limiting plate, 9-second nodal plate, 10-damper I.
Detailed Description
The utility model provides a lasso supports outrigger truss energy dissipation shock mitigation system, includes core section of thick bamboo 1, frame post 2 and connects top frame roof beam 5, below frame roof beam 6 and outrigger truss 4 between core section of thick bamboo 1 and frame post 2, outrigger truss 4 includes upper chord 41, lower chord 43 and oblique web member 42, oblique web member 42 is oblique diagonal angle cross connection between upper chord 41 and lower chord 43, and upper chord 41 outer end and oblique web member 42 handing-over department pass through end plate 44 and connect first otic placode 34, and first otic placode 34 is articulated through axis of rotation and the first support 31 of lasso, the end plate upper end is equipped with limiting plate 8, and the limiting plate 8 other end links to each other with top frame roof beam 5.
The energy dissipation and shock absorption system is provided with a noose support shock absorption mechanism 3, the noose support shock absorption mechanism 3 is connected to the end part of one end, close to a frame column, of a boom truss, the noose support shock absorption mechanism comprises a noose first support 31, a second support 32 and a damper 33, the common end of the noose first support 31 is hinged to the common end of the noose second support 32, the other end of the noose first support 31 is hinged to the outer end of an upper chord 41 of the boom truss through a first ear plate 34, and the other end of the noose second support 32 is hinged to the connecting part of a lower frame beam 6 and the frame column 2 through a second ear plate 35 and a first node plate 7; the damper is connected in one of three ways:
the first connection mode is as follows: one end of the damper is hinged with the common end of the noose first support 31 and the noose second support 32, and the other end of the damper is hinged with the outer end of the lower chord 43 of the outrigger truss through a third ear plate 36;
the second connection mode is as follows: one end of the damper is hinged with the common end of the first support 31 and the second support 32 of the noose, and the other end is hinged with the upper frame beam through a fourth lug plate 37;
the third connection mode is as follows: one end of the damper is vertically connected with the lasso second support, and the other end of the damper is hinged to the joint of the upper frame beam 5 and the frame column 2 through the fifth lug plate 38 and the second gusset plate 9.
When the damper is in a first connection mode: the included angle between the damper 33 and the second support 32 of the lasso is 90 degrees, and the inclination angle of the second support 32 of the lasso relative to the horizontal direction is theta1The angle of inclination of the noose first support 31 with respect to the vertical is theta2The damper length L and the noose second support length L4 satisfy the following relationship:
L＝L4·tanθ1
the displacement amplification factor f of the damper mechanism 3 is L2 · sin θ2/L1·cos(θ1+θ2)，
In the formula: l1 is boom truss height, L2 is boom truss upper end extending from core barrel, inclination angle theta2Is 30 to 60 degrees, and the dip angle theta1Is 20-40 degrees.
The utility model discloses in, when the attenuator reached ultimate displacement or ultimate speed, at this moment under corresponding damping force effect, gusset plate, end plate and otic placode all are in elastic working state and can not appear sliding and pulling out etc. destruction, and the same limiting plate also is in elastic working state and can not appear sliding and pulling out etc. destruction.
The displacement amplification factor f is usually used to determine the working efficiency of the damper, and the value thereof is the ratio of the relative displacement at two ends of the damper to the interlayer displacement. The utility model relates to a lasso supporting mechanism boom truss energy dissipation shock mitigation system, the length of its lasso first support L3, lasso second support L4 and attenuator is according to the boom truss height L1 at, boom truss upper chord stretches out length L2 from a core section of thick bamboo, boom truss lower chord stretches out length L5, inclination theta that the lasso supported from a core section of thick bamboo1、θ2And damper ultimate displacement. In the present embodiment, the damper length is L ═L4tanθ1。
In the prior art, the displacement amplification factor f of a diagonal mechanism and a herringbone mechanism is less than 1, and the defects of low working efficiency, overlarge occupied building space and the like are overcome. In addition, the damper is vertically arranged at the end part of the outrigger truss of the reinforcing layer, the damper plays a role of a damper by utilizing the bending deformation of the core barrel, the energy consumption efficiency of the damper is improved by the amplification effect of the outrigger lever, and the displacement amplification coefficient f of the damper is the ratio of the outrigger length L2 and the outrigger truss height L1, namely, f is L2/L1 is U2/U1. In an embodiment of the present invention, L2 is 7 to 12m, L1 is 3.9 to 5.2m, and when L2 is 10m and L1 is 5m, f is 2.0.
To the utility model discloses the attenuator that lasso support was arranged, through deriving, the displacement amplification factor f that the mechanism was arranged to the attenuator is L2 sin theta2/L1·cos(θ1+θ2) From engineering experience, θ1＝20°～40°，θ230-60 degrees, when L2 is 10m, L1 is 5m, theta1＝30°，θ2＝45°，f＝L2·sinθ2/L1·cos(θ1+θ2) And ≈ 6. The utility model discloses a displacement amplification factor can reach in the enhancement layer 3 times of the vertical arrangement attenuator form displacement amplification factor of outrigger truss tip. Through deriving, the utility model discloses a displacement amplification factor can reach about 6, and the shock attenuation is effectual, and work efficiency is high.
The utility model discloses a shock attenuation process does:
under earthquake and wind load effect, the utility model discloses an enlarged twice around the attenuator displacement, at first, the bending deformation of a core section of thick bamboo transmits the vertical deformation U2 of the outer tip of outrigger truss through the leverage of outrigger truss body, and this vertical deformation drives the lasso and supports and produce the motion that opens and shuts, will warp once more and enlarge the attenuator both ends, promptly the utility model discloses finally make the bending deformation of a core section of thick bamboo enlarge the both ends of attenuator, realize the function of enlargiing step by step, realize energy dissipation absorbing purpose through the attenuator.
The technical personnel who knows in this professional field can make the modification to above-mentioned utility model very easily to use this utility model theory of operation in the middle of the actual engineering and needn't pass through creative work. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (3)
1. A lasso support outrigger truss energy dissipation and shock absorption system comprises a core tube (1), a frame column (2), an upper frame beam (5), a lower frame beam (6) and an outrigger truss (4), wherein the upper frame beam (5), the lower frame beam and the outrigger truss are connected between the core tube (1) and the frame column (2); the method is characterized in that: one end, close to the frame column, of the boom truss is connected with a noose support damping mechanism (3), the noose support damping mechanism comprises a noose first support (31), a second support (32) and a damper (33), the common end of the noose first support (31) is hinged with the common end of the noose second support (32), the other end of the noose first support (31) is hinged with the outer end of an upper chord of the boom truss through a first ear plate (34), and the other end of the noose second support (32) is hinged with the joint of the lower frame beam (6) and the frame column (2) through a second ear plate (35); the damper is connected in one of three ways:
the first connection mode is as follows: one end of the damper is hinged with the common end of the first support (31) and the second support (32) of the lasso, and the other end of the damper is hinged with the outer end of the lower chord of the outrigger truss through a third ear plate (36);
the second connection mode is as follows: one end of the damper is hinged with the common end of the first support (31) and the second support (32) of the noose, and the other end of the damper is hinged with the upper frame beam (5) through a fourth lug plate 37;
the third connection mode is as follows: one end of the damper is vertically connected with the second support of the lasso, and the other end of the damper is hinged with the joint of the upper frame beam and the frame column (2) through a fifth lug plate (38).
2. A lasso support boom truss energy dissipating and shock absorbing system as claimed in claim 1 wherein the damper is in the first connection mode: the included angle between the damper (33) and the second support (32) of the lasso is 90 degrees, and the inclination angle of the second support (32) of the lasso relative to the horizontal direction is theta1The inclination angle of the first support (31) of the lasso relative to the vertical direction is theta2The damper length L and the noose second support length L4 satisfy the following relationship:
L＝L4·tanθ1
the displacement amplification factor f of the damper mechanism 3 is L2 · sin θ2/L1·cos(θ1+θ2)，
In the formula: l1 is boom truss height, L2 is boom truss upper end extending from core barrel, inclination angle theta2Is 30 to 60 degrees, and the dip angle theta1Is 20-40 degrees.
3. The lasso support boom truss energy dissipation and shock absorption system of claim 2, wherein: outrigger truss (4) include chord member (41), lower chord member (43) and oblique web member (42), oblique web member (42) are oblique diagonal angle cross connection and are in between chord member (41) and lower chord member (43), and first otic placode (34) are connected through end plate (44) to last chord member (41) outer end and oblique web member (42) handing-over department, and first otic placode is articulated through axis of rotation and the first support (31) of noose, the end plate upper end is equipped with limiting plate (8), and limiting plate (8) upper end links to each other with top frame roof beam (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921960332.9U CN211850108U (en) | 2019-11-13 | 2019-11-13 | Lasso supports outrigger truss energy dissipation shock mitigation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921960332.9U CN211850108U (en) | 2019-11-13 | 2019-11-13 | Lasso supports outrigger truss energy dissipation shock mitigation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211850108U true CN211850108U (en) | 2020-11-03 |
Family
ID=73218196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921960332.9U Active CN211850108U (en) | 2019-11-13 | 2019-11-13 | Lasso supports outrigger truss energy dissipation shock mitigation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211850108U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282211A (en) * | 2020-11-06 | 2021-01-29 | 华东建筑设计研究院有限公司 | Simply supported truss structure for preventing lateral instability |
| CN114135001A (en) * | 2021-12-09 | 2022-03-04 | 上海市机械施工集团有限公司 | Method for building super high-rise inhaul cable structure |
-
2019
- 2019-11-13 CN CN201921960332.9U patent/CN211850108U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282211A (en) * | 2020-11-06 | 2021-01-29 | 华东建筑设计研究院有限公司 | Simply supported truss structure for preventing lateral instability |
| CN114135001A (en) * | 2021-12-09 | 2022-03-04 | 上海市机械施工集团有限公司 | Method for building super high-rise inhaul cable structure |
| CN114135001B (en) * | 2021-12-09 | 2023-02-28 | 上海市机械施工集团有限公司 | Method for building super high-rise inhaul cable structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211850108U (en) | Lasso supports outrigger truss energy dissipation shock mitigation system | |
| CN204530991U (en) | A kind of large-span prestressed arch truss and rope film combining structure | |
| CN105672476B (en) | A kind of marmem is combined the beam column of steel structure splicing node of edge of a wing friction | |
| CN101613991B (en) | Lever-type gain device for damper | |
| CN107816243A (en) | High-strength steel column ordinary steel joist steel support low yield point steel coupling beam can resetting structure | |
| CN109898415A (en) | Cylinder bridge tower in the cylinder of spatial mixing rope net suspension bridge with parabola arch tower cap | |
| CN113530332A (en) | Super high-rise energy dissipation cantilever damping system with amplification technology | |
| CN209637104U (en) | A kind of moving seesaw-type mechanism semi-girder truss energy-dissipating and shock-absorbing system | |
| CN113374109A (en) | Seesaw type amplification energy dissipation extension arm capable of preventing external instability | |
| CN207609230U (en) | High-strength steel column-ordinary steel joist steel support-low yield point steel coupling beam can resetting structure | |
| CN109594671B (en) | Energy dissipation and shock absorption system of T-shaped lever mechanism cantilever truss | |
| CN206753138U (en) | New wide span dry coal shed structure | |
| CN205804661U (en) | Girder truss and the energy dissipating attachment structure of external surrounding frame trestle in framework core wall structure | |
| CN103615069A (en) | Trussed steel rib concrete coupling beam | |
| CN108660904B (en) | Long sling damping vibration damper of suspension bridge | |
| CN105986628A (en) | Buckling prevention supporting boom truss | |
| CN112081263A (en) | Buckling restrained brace outrigger truss and combined type shock attenuation high-rise structure system | |
| CN109519025B (en) | Energy dissipation and shock absorption system for cantilever truss of scissor supporting mechanism | |
| CN106894506A (en) | A kind of large span can breathing structure system | |
| CN210086949U (en) | Barrel shock-resistant structure | |
| CN114150914B (en) | Passive negative-stiffness energy dissipation cantilever system for super high-rise building | |
| CN201103167Y (en) | Giant steel frame support structure | |
| CN206707121U (en) | Combined roof truss with FRP cable at lower chord | |
| CN109469258A (en) | Steel-bamboo roof truss with circular steel tube at lower chord | |
| CN212453171U (en) | Buckling restrained brace outrigger truss and combined type shock attenuation high-rise structure system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |