CN109487914A - Annular compound viscoelastic damping support - Google Patents
Annular compound viscoelastic damping support Download PDFInfo
- Publication number
- CN109487914A CN109487914A CN201910016033.8A CN201910016033A CN109487914A CN 109487914 A CN109487914 A CN 109487914A CN 201910016033 A CN201910016033 A CN 201910016033A CN 109487914 A CN109487914 A CN 109487914A
- Authority
- CN
- China
- Prior art keywords
- annular
- plate
- steel
- holes
- steel part
- 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.)
- Granted
Links
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
- E04B1/36—Bearings or like supports allowing movement
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
It the invention discloses a kind of annular compound viscoelastic damping support, is squeezed by lead for retractable pencil in support and shear plasticity deforms and the shearing lag return of viscoelastic material deforms energy consumption, to improve security performance of the large-span space structure under earthquake and high wind effect.Polytetrafluoroethylene (PTFE) backing plate can effectively reduce the force of sliding friction between round bearing bottom plate and vertical member simultaneously, the energy-dissipating property of composite viscoelasticity material and lead for retractable pencil in damping supporting seat can be given full play to, to realize shock absorption energy consumption effect of the annular compound viscoelastic damping support under geological process.And annular compound viscoelastic damping support uses mild steel, rubber, three kinds of Energy dissipating materials of lead and shear energy dissipation simultaneously, squeezes two kinds of energy consumption mechanism of energy consumption, using annular compound viscoelastic damping support as effective passive control damping device, it can be used for the wind resistance antivibration of structure, it can be used in the antidetonation shock attenuation of structure again, be the damping energy dissipation support that a kind of energy dissipation capacity is strong, damping characteristic is good, stability is high.
Description
Technical field
The invention belongs to building structure technology fields, are related to a kind of steel building connecting node, and in particular to Yi Zhongyong
The annular compound viscoelastic damping support of connection space roof system and vertical load-carrying members in large-span space structure.
Background technique
With the development of the times, people's lives level is gradually increased, and living condition and living environment also have occurred accordingly
Variation.At home and abroad, large span space latticed shell structure using more and more extensive, increasingly by the attention of architect.
The span of latticed shell structure is increasing, with the increase that the increasing of span necessarily causes roof system to be self-possessed, in net surfaces
Problem is encountered that large span curved-surface structure has very big horizontal thrust in shell structure design, substructure is often difficult to hold
By.
Long-span space latticed shell structure can be significantly reduced studies have shown that using reasonable support style in a large amount of earthquake
Seismic response reduces the damage and failure of structure.The support of function admirable allows to have certain displacement of the lines, angular displacement, or both it is simultaneous
Have, to alleviate huge horizontal thrust, reduces the adverse effect to substructure, while project cost can also be reduced.Therefore,
Part seismic energy can be absorbed in the preferred material to be consumed energy using composite viscoelasticity material and lead for retractable pencil as damping, reduces structure
Seismic response, and have biggish flexible deformation in the horizontal direction, using multiple made of rubber and mild steel plate adhering and pressing
Closing viscoelastic material can reduce the horizontal thrust that the vertical load-carrying members in lower part are born, and alleviate the shear-deformable of structure.
With the research that deepens continuously of damping supporting seat, it is applied to the large-span structures such as rack, membrane structure, dome, from knot
Damping supporting seat is studied, designed to the angle of structure antidetonation, and considers the energy consumption ability of damping supporting seat, thus design space stress
Reasonable structure, will be imperative.
Summary of the invention
It is excellent it is an object of the invention to solve at least the above problems and/or defect, and provide at least to will be described later
Point.
In order to realize these purposes and other advantages according to the present invention, a kind of annular compound viscoelastic damping branch is provided
Seat is used for connection space roof system and vertical load-carrying members in large-span space structure, comprising:
Annular steel part, the ring channel structures with side opening；It is evenly arranged in the top plate of the annular steel part
Multiple through holes I are provided with the multiple locating slots opposite with multiple through holes I in bottom plate；The annular steel part has two and half
Annular steel part welds to be formed；
The double-deck annular compound viscoelastic material layer, be separately positioned on top inside the ring channel structures of annular steel part and
Lower section；Multiple through holes II corresponding with multiple through holes I are provided in the bilayer annular compound viscoelastic material layer；
The middle part of the ring channel structures of annular steel part is arranged in annular shearing steel plate, and it is viscous to be located at the double-deck annular compound
Between elastomeric layer；Multiple through holes III corresponding with multiple through holes I are provided on the annular shearing steel plate；
Multiple lead for retractable pencils are arranged in multiple through holes I, multiple through holes II, multiple through holes III and multiple positioning respectively
In slot；And the top of multiple through holes I is provided with sealing fastener；
Base-plate is set to the middle part of annular steel part, and the side of the base-plate and annular shearing steel plate
Jag is fixedly connected；The top connection of the base-plate is provided with cross-shaped support floor, the support floor it is upper
Side's connection hollow steel ball；
Wherein, the annular steel part and the vertical supporting component of vertical load-carrying members are detachably connected, the hollow steel ball
Surface connect with the rod piece of space roof structure；And it is located between the base-plate and vertical supporting component in the middle part of annular steel part
It is provided with polytetrafluoroethylene (PTFE) backing plate；The annular steel part, the double-deck annular compound viscoelastic material layer, annular shearing steel plate and multiple
Lead for retractable pencil matches occlusion and base-plate is connected as whole Force transmission parts.
Preferably, the annular steel part is circular ring shape steel part；The base-plate is round bearing bottom plate；The bilayer
Annular compound viscoelastic material layer is double-layer circular annular composite viscoelasticity material layer；The annular shearing steel plate is circular ring shape shearing
Steel plate.
Preferably, the diameter of the round bearing bottom plate is 50~100mm smaller than the internal diameter of circular ring shape steel part；The annulus
Shape shearing steel plate with a thickness of 10~20mm, circular ring shape shearing steel plate 20~40mm away from the top of round bearing bottom plate.
Preferably, the annular steel part is the annular steel part in side；The base-plate is rectangular base-plate；The bilayer
Annular compound viscoelastic material layer is double-layer square annular compound viscoelastic material layer；The annular shearing steel plate is side's annular shearing
Steel plate.
Preferably, the small 50~100mm of side length of the side length analogy ring steel part of the rectangular base-plate；The Fang Huan
Shape shearing steel plate with a thickness of 10~20mm, side's annular shearing steel plate 20~40mm away from the top of rectangular base-plate.
Preferably, the mode of the annular steel part and the vertical supporting component of vertical load-carrying members being detachably connected
Are as follows: the exterior bottom of the annular steel part is reserved with annular connecting plate, and multiple bolt holes are provided on the annular connecting plate
I, the top of the vertical supporting component is provided with multiple pre-buried rod pieces I, and multiple bolt holes I are inserted into multiple pre-buried rod pieces respectively
Annular steel part and vertical supporting component are fixed by anchor bolt I after in I.
Preferably, the mode of the annular steel part and the vertical supporting component of vertical load-carrying members being detachably connected
Are as follows: the top of the vertical supporting component is provided with pre-embedded steel slab and multiple pre-buried rod pieces II；The pre-embedded steel slab and ring steel
The bottom of part is welded to connect；And multiple bolt holes II are provided on the base-plate, multiple bolt holes II are inserted into respectively
Annular steel part and vertical supporting component are fixed by anchor bolt II after in multiple pre-buried rod pieces II；And the polytetrafluoroethylene (PTFE)
Backing plate is set between base-plate and pre-embedded steel slab；The polytetrafluoroethylene (PTFE) backing plate sticks in pre-embedded steel slab using epoxy resin
Top, polytetrafluoroethylene (PTFE) backing plate with a thickness of 5mm.
Preferably, the polytetrafluoroethylene (PTFE) backing plate sticks in the vertical supporting structure of vertical supporting member using epoxy resin
The top of part, polytetrafluoroethylene (PTFE) backing plate with a thickness of 5mm；The sector notch radius of the support floor and the outer diameter of hollow steel ball
It matches；It is described bilayer annular compound viscoelastic material layer sheet metal and rubber layer made of mild steel be superimposed after with annular
Steel part and annular shearing steel plate high temperature and pressure sulfurization form one；Rubber in the bilayer annular compound viscoelastic material layer
Layer is located at outside, that is, forms the rubber layer of the double-deck annular compound viscoelastic material layer one layer more than sheet metal；The multiple positioning
The depth of slot is 5mm；The diameter of the lead for retractable pencil is 15~50mm；The height of the sealing fastener and the top of annular steel part are neat
Flat, the diameter for sealing fastener is 4mm mutually bigger than the diameter of lead for retractable pencil.
Preferably, it is provided with and is connected to multiple through holes II and vertical in the double-deck annular compound viscoelastic material layer
Multiple radial holes.
The present invention also provides a kind of installation methods such as above-mentioned annular compound viscoelastic damping support, including following step
It is rapid:
Step 1: the double-deck annular compound viscoelastic material to be placed on to the ring of the annular steel part of two pieces of semi-circular steel parts formation
Above and below inside shape slot structure, and annular shearing steel plate is placed between the double-deck annular compound viscoelastic material layer, together
When make multiple through holes I, multiple locating slots, multiple through holes II, multiple through holes III be aligned, then by two pieces of semi-circular steel parts
Welding forms closed annular steel part, which is vulcanized under 150~230 DEG C, 10~15MPa conditions of vulcanization
Effect forms one；
Step 2: polytetrafluoroethylene (PTFE) backing plate to be sticked in the vertical supporting component of vertical supporting member using epoxy resin
Then the annular steel part for the one that step 1 vulcanizes is detachably connected on vertical supporting component by top, and described poly-
Tetrafluoroethene backing plate is located at the middle part of annular steel part；Lead is poured into from the top of multiple through holes I, sequentially enters multiple through holes
II, it in multiple through holes III and multiple locating slots, is formed and bears to squeeze the lead for retractable pencil with shear action, the upper end of multiple through holes I
With sealing fastener sealing；
Step 3: making base-plate be located at annular steel part the top for being placed in polytetrafluoroethylene (PTFE) backing plate of base-plate
Middle part, then the jag of the side of base-plate and annular shearing steel plate is welded to connect；Simultaneously in the upper of base-plate
Side's welding is provided with cross-shaped support floor, in the top welded hollow steel ball of support floor；The surface of the hollow steel ball
It connect, is formed for connection space roof system in large-span space structure and vertical load-carrying members with the rod piece of space roof structure
Annular compound viscoelastic damping support.
The present invention is include at least the following beneficial effects:
(1) annular compound viscoelastic damping support of the invention, reduces the seismic response of structure to the maximum extent.(2)
Damping material materials of the present invention are convenient, and the lead for retractable pencil, mild steel steel plate, viscoelastic material (rubber) for constituting damper are
Common Energy dissipating material, it is cheap, it is low in cost.(3) present invention is easy to standardized production, and manufacture craft and process are simple, phase
With under dimensions, can by adjusting lead for retractable pencil diameter and number to adapt to the requirement of different performance, reduce production specification, mention
High efficiency.(4) annular compound viscoelastic damping support utilizes rubber, three kinds of Energy dissipating materials of mild steel and lead and shearing consumption simultaneously
Can, it squeeze two different energy consumption mechanism that consume energy.(5) applied widely, it is adaptable, it can be not only used for the antidetonation of engineering structure,
It can be used for engineering structure wind resistance again.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention:
Fig. 1 is the front cross-sectional structural schematic diagram of annular compound viscoelastic damping support of the present invention；
Fig. 2 is the positive structure schematic (no lead for retractable pencil) of annular compound viscoelastic damping support of the present invention；
Fig. 3 is the structural schematic diagram of the double-deck annular compound viscoelastic material layer of the present invention；
Fig. 4 is the overlooking structure diagram (circular ring shape) of annular compound viscoelastic damping support of the present invention；
Fig. 5 is the overlooking structure diagram (side's annular) of annular compound viscoelastic damping support of the present invention；
Fig. 6 is the front cross-sectional structural schematic diagram of the annular compound viscoelastic damping support of another structure of the present invention；
Fig. 7 is the overlooking structure diagram (annulus of the annular compound viscoelastic damping support of another structure of the present invention
Shape)；
Fig. 8 is the overlooking structure diagram (side's annular) of annular compound viscoelastic damping support of the invention；
Fig. 9 is the front cross-sectional structural schematic diagram (nothing of the annular compound viscoelastic damping support of another structure of the present invention
Lead for retractable pencil)；
Figure 10 is the front cross-sectional structural schematic diagram of the annular compound viscoelastic damping support of another structure of the present invention；
Figure 11 is the front cross-sectional structural schematic diagram (nothing of the annular compound viscoelastic damping support of another structure of the present invention
Lead for retractable pencil)；
Figure 12 is the front cross-sectional structural schematic diagram of the annular compound viscoelastic damping support of another structure of the present invention.
Specific embodiment:
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or combinations thereof.
Fig. 1~2,6 show a kind of annular compound viscoelastic damping support of the invention, are used for large-span space structure
Middle connection space roof system and vertical load-carrying members, comprising:
Annular steel part 8, the ring channel structures 81 with side opening；In the top plate 82 of the annular steel part 8 uniformly
Multiple through holes I 83 are provided with, the multiple locating slots 85 opposite with multiple through holes I 83 are provided in bottom plate 84；The ring
Shape steel part 8 has two pieces of welding of semi-circular steel part 86 to be formed；
The double-deck annular compound viscoelastic material layer 3, is separately positioned on the top inside the ring channel structures of annular steel part
The lower section and；Multiple through holes corresponding with multiple through holes I 83 are provided in the bilayer annular compound viscoelastic material layer 3
Ⅱ31；
The middle part of the ring channel structures 81 of annular steel part 8 is arranged in annular shearing steel plate 5, and it is multiple to be located at the double-deck annular
It closes between viscoelastic material layer 3；Multiple run through corresponding with multiple through holes I 83 is provided on the annular shearing steel plate 5
Hole III 51；
Multiple lead for retractable pencils 4 are arranged in multiple through holes I 83, multiple through holes II 31, multiple through holes III 51 and more respectively
In a locating slot 85；And the top of multiple through holes I 83 is provided with sealing fastener 7；
Base-plate 6 is set to the middle part of annular steel part 8, and the side of the base-plate 6 and annular shearing steel plate
5 jag is fixedly connected；The top connection of the base-plate 6 is provided with cross-shaped support floor 2, the support floor
2 top connects hollow steel ball 1；
Wherein, the annular steel part 8 and the vertical supporting component 12 of vertical load-carrying members are detachably connected, the hollow steel
The surface of ball 1 is connect with the rod piece of space roof structure；And it is located at the base-plate 6 and vertical supporting structure at annular 8 middle part of steel part
Polytetrafluoroethylene (PTFE) backing plate 11 is provided between part 12；The annular steel part 8, the double-deck annular compound viscoelastic material layer 3, annular are cut
It cuts steel plate 5 and multiple lead for retractable pencil 4 match occlusion and base-plate 6 is connected as whole Force transmission parts.
In the above-mentioned technical solutions, it is squeezed by lead for retractable pencil 4 in annular compound viscoelastic damping support and shear plasticity deforms
And the shearing lag return of the double-deck annular compound viscoelastic material layer 3 deforms energy consumption, to improve large-span space structure on ground
Security performance under shake and high wind effect, simultaneously as polytetrafluoroethylene (PTFE) backing plate 11 can effectively reduce 6 He of round bearing bottom plate
Force of sliding friction between vertical member 12 can give full play to the double-deck annular compound viscoelastic material layer 3 and lead in damping supporting seat
The energy-dissipating property of core 4 realizes shock absorption energy consumption effect of the annular compound viscoelastic damping support under geological process.
Large-span space structure is used for using annular compound viscoelastic damping support as effective passive control damping device
In, it can it for the wind resistance antivibration of structure, and can be used in the antidetonation shock attenuation of structure, be that a kind of energy dissipation capacity is strong, damping is special
The damping energy dissipation support that property is good, stability is high.Meanwhile lead for retractable pencil used in annular compound viscoelastic damping support, the double-deck ring
Shape composite viscoelasticity material layer is common damping energy dissipation material, and materials are convenient, cheap, can reduce making for engineering structure
Valence.
In the above-mentioned technical solutions, such as Fig. 4, shown in 7, the annular steel part is circular ring shape steel part；The base-plate is
Round bearing bottom plate；The bilayer annular compound viscoelastic material layer is double-layer circular annular composite viscoelasticity material layer；The ring
Shape shearing steel plate is circular ring shape shearing steel plate, and using this technical solution, circular ring shape is symmetrical about center any angle, to difference
The horizontal force progress force analysis result of angle is consistent, due to the uncertainty in action of horizontal seismic direction, more using circle
Be conducive to give full play to the energy-dissipating property of damping supporting seat.
In the above-mentioned technical solutions, the diameter of the round bearing bottom plate is 50~100mm smaller than the internal diameter of circular ring shape steel part,
Using the parameter, occur to avoid base-plate and circular ring shape steel part rigid contact when horizontal displacement, centre ensures to hinder there are gap
Damping material deformation energy consumption；The circular ring shape shearing steel plate with a thickness of 10~20mm, circular ring shape shearing steel plate is away from round bearing bottom
20~40mm of top of plate, using the parameter, shearing steel plate is composite viscoelasticity material away from the distance at the top of round bearing bottom plate
Overall thickness, guarantee support sufficiently consume energy under seismic force effects.
In the above-mentioned technical solutions, such as Fig. 5, shown in 8, the annular steel part is the annular steel part in side；The base-plate is
Rectangular base-plate；The bilayer annular compound viscoelastic material layer is double-layer square annular compound viscoelastic material layer；The ring
Shape shearing steel plate is the annular shearing steel plate in side.
In the above-mentioned technical solutions, the small 50~100mm of side length of the side length analogy ring steel part of the rectangular base-plate,
Using the parameter, occur to avoid base-plate and annular steel part rigid contact when horizontal displacement, centre ensures to damp there are gap
Material deformation energy consumption；Side's annular shearing steel plate with a thickness of 10~20mm, side's annular shearing steel plate is away from rectangular base-plate
20~40mm of top, using the parameter, shearing steel plate is composite viscoelasticity material away from the distance at the top of round bearing bottom plate
Overall thickness guarantees that support sufficiently consumes energy under seismic force effects.
In the above-mentioned technical solutions, such as Fig. 1, the vertical supporting of the annular steel part and vertical load-carrying members shown in 2,4,5
The mode of component being detachably connected are as follows: the exterior bottom of the annular steel part 8 is reserved with annular connecting plate 87, and the annular is even
Multiple bolt holes I 88 are provided on fishplate bar 87, the top of the vertical supporting component is provided with multiple pre-buried rod pieces I 10, more
A bolt hole I 88 passes through anchor bolt I 9 for annular steel part 8 and vertical supporting structure after being inserted into multiple pre-buried rod pieces I 10 respectively
Part 12 is fixed.
In the above-mentioned technical solutions, such as Fig. 6, shown in 7,8, the vertical supporting structure of the annular steel part and vertical load-carrying members
The mode of part being detachably connected are as follows: the top of the vertical supporting component 12 is provided with pre-embedded steel slab 14 and multiple pre-buried rod pieces
Ⅱ121；The bottom of the pre-embedded steel slab and annular steel part is welded to connect；And multiple bolt holes are provided on the base-plate
II 13, multiple bolt holes II 13 pass through anchor bolt II 122 for annular steel part after being inserted into multiple pre-buried rod pieces II 121 respectively
8 is fixed with vertical supporting component 12, is also arranged with bolt hole shear plate 15 between pre-buried rod piece II 121 and anchor bolt II 122；
And the polytetrafluoroethylene (PTFE) backing plate 11 is set between base-plate 6 and pre-embedded steel slab 14；The polytetrafluoroethylene (PTFE) backing plate 11 is adopted
Stick in the top of pre-embedded steel slab 14 with epoxy resin, polytetrafluoroethylene (PTFE) backing plate with a thickness of 5mm；It is wherein as shown, described pre-
The shape for burying steel plate is rectangular pre-embedded steel slab or round pre-embedded steel slab, is depended on using rectangular pre-embedded steel slab or round pre-embedded steel slab
Base-plate is rectangular base-plate or round bearing bottom plate.
In the above-mentioned technical solutions, the polytetrafluoroethylene (PTFE) backing plate 11 sticks in vertical supporting member using epoxy resin
The top of vertical supporting component, polytetrafluoroethylene (PTFE) backing plate with a thickness of 5mm；The sector notch radius and sky of the support floor 2
The outer diameter of heart steel ball matches；As shown in figure 3,3 sheet metal made of mild steel of bilayer annular compound viscoelastic material layer
32 and rubber layer 33 be superimposed after with annular steel part 8 and annular 5 high temperature and pressure sulfurization of shearing steel plate form one, use
This mode, rubber layer is together with mild steel plate tight bond and will not peeling off phenomenon.And the double-deck annular compound is glued
Rubber layer is located at outside in elastomeric layer, that is, forms the rubber layer of the double-deck annular compound viscoelastic material layer one more than sheet metal
Layer, using which, it is ensured that the two sides up and down of composite viscoelasticity material are rubber, by high temperature and pressure sulfurization and outside
Side ring shape steel part and shearing steel plate bond together；The depth of the multiple locating slot is 5mm；The diameter of the lead for retractable pencil be 15~
50mm；It is flushed at the top of the height of the sealing fastener and annular steel part, the diameter for sealing fastener is mutually bigger than the diameter of lead for retractable pencil
Effective sealing to lead for retractable pencil may be implemented in this way in 4mm.
In the above-mentioned technical solutions, as shown in figs. 9 to 12, be provided in the double-deck annular compound viscoelastic material layer with
Multiple connections of through hole II 31 and vertical multiple radial holes, multiple radial holes are bar shaped radial hole 34 or S type radial hole 35, are adopted
In this way, the lead for retractable pencil structure 42 of 41 or more S type structures of lead for retractable pencil structure of more strip structures is formed, it can more sufficiently
The energy-dissipating property for playing double-deck annular compound viscoelastic material layer 3 and lead for retractable pencil 4 in damping supporting seat, realize annular compound viscoplasticity
Shock absorption energy consumption effect of the damping supporting seat under geological process.
Embodiment 1:
A kind of installation method of above-mentioned annular compound viscoelastic damping support, comprising the following steps:
Step 1: the double-deck annular compound viscoelastic material to be placed on to the circular ring shape steel part of two pieces of semi-circular shape steel parts formation
Ring channel structures inside above and below, and circular ring shape shearing steel plate is placed in double-layer circular annular composite viscoelasticity material layer
Between, while it is aligned multiple through holes I, multiple locating slots, multiple through holes II, multiple through holes III, then by two and half
Circular ring shape steel part welds to form closed circular ring shape steel part, by the closed circular ring shape steel part in 180 DEG C, 12MPa conditions of vulcanization
Lower sulfurization forms one；
Step 2: polytetrafluoroethylene (PTFE) backing plate to be sticked in the vertical supporting component of vertical supporting member using epoxy resin
Then the circular ring shape steel part for the one that step 1 vulcanizes is detachably connected on vertical supporting component by top, and described
Polytetrafluoroethylene (PTFE) backing plate is located at the middle part of annular steel part；Lead is poured into from the top of multiple through holes I, sequentially enters multiple run through
In hole II, multiple through holes III and multiple locating slots, formed bear squeeze and shear action lead for retractable pencil, multiple through holes I it is upper
End sealing fastener sealing；The mode of the annular steel part and the vertical supporting component of vertical load-carrying members being detachably connected
Are as follows: the exterior bottom of the annular steel part is reserved with annular connecting plate, and multiple bolt holes are provided on the annular connecting plate
I, the top of the vertical supporting component is provided with multiple pre-buried rod pieces I, and multiple bolt holes I are inserted into multiple pre-buried rod pieces respectively
Annular steel part and vertical supporting component are fixed by anchor bolt I after in I；Polytetrafluoroethylene (PTFE) backing plate with a thickness of 5mm；
Step 3: being located at round bearing bottom plate the top for being placed in polytetrafluoroethylene (PTFE) backing plate of round bearing bottom plate
Then the jag of the side of round bearing bottom plate and circular ring shape shearing steel plate is welded to connect by the middle part of circular ring shape steel part；Together
When round bearing bottom plate top welding be provided with cross-shaped support floor, in the top welded hollow steel of support floor
Ball；The surface of the hollow steel ball is connect with the rod piece of space roof structure, is formed empty for connecting in large-span space structure
Between roof system and vertical load-carrying members annular compound viscoelastic damping support.
Embodiment 2:
A kind of installation method of above-mentioned annular compound viscoelastic damping support, comprising the following steps:
Step 1: the double-deck annular compound viscoelastic material is placed on the annular steel part in side that two pieces of semi-square annular steel parts are formed
Ring channel structures inside above and below, and the annular shearing steel plate in side is placed in double-layer square annular compound viscoelastic material layer
Between, while it is aligned multiple through holes I, multiple locating slots, multiple through holes II, multiple through holes III, then by two and half
Side's annular steel part welds to form closed side's annular steel part, by closed side's annular steel part in 175 DEG C, 10MPa conditions of vulcanization
Lower sulfurization forms one；
Step 2: polytetrafluoroethylene (PTFE) backing plate to be sticked in the vertical supporting component of vertical supporting member using epoxy resin
On rectangular pre-embedded steel slab, the annular steel part in the side for the one that step 1 vulcanizes then is detachably connected on vertical supporting component
On, and the polytetrafluoroethylene (PTFE) backing plate is located at the middle part of the annular steel part in side；Lead is poured into from the top of multiple through holes I, successively
Into in multiple through holes II, multiple through holes III and multiple locating slots, is formed and bear to squeeze the lead for retractable pencil with shear action, it is multiple
The sealing fastener sealing of the upper end of through hole I；Side's annular steel part is removable with the vertical supporting component of vertical load-carrying members
Unload the mode of connection are as follows: the top of the vertical supporting component is provided with rectangular pre-embedded steel slab and multiple pre-buried rod pieces II；It is described
The bottom of the annular steel part of rectangular pre-embedded steel slab and side is welded to connect；And multiple bolt holes II are provided on the base-plate,
Multiple bolt holes II pass through the annular steel part in II general side of anchor bolt and vertical supporting after being inserted into multiple pre-buried rod pieces II respectively
Component is fixed；And the polytetrafluoroethylene (PTFE) backing plate is set between rectangular base-plate and rectangular pre-embedded steel slab；Polytetrafluoroethylene (PTFE)
Backing plate with a thickness of 5mm；
Step 3: being located at rectangular base-plate the top for being placed in polytetrafluoroethylene (PTFE) backing plate of rectangular base-plate
Then the jag of the annular shearing steel plate in the side of rectangular base-plate and side is welded to connect by the middle part of side's annular steel part；Together
When rectangular base-plate top welding be provided with cross-shaped support floor, in the top welded hollow steel of support floor
Ball；The surface of the hollow steel ball is connect with the rod piece of space roof structure, is formed empty for connecting in large-span space structure
Between roof system and vertical load-carrying members annular compound viscoelastic damping support.
Embodiment 3:
A kind of installation method of above-mentioned annular compound viscoelastic damping support, comprising the following steps:
Step 1: the double-deck annular compound viscoelastic material to be placed on to the circular ring shape steel part of two pieces of semi-circular shape steel parts formation
Ring channel structures inside above and below, and circular ring shape shearing steel plate is placed in double-layer circular annular composite viscoelasticity material layer
Between, while it is aligned multiple through holes I, multiple locating slots, multiple through holes II, multiple through holes III, then by two and half
Circular ring shape steel part welds to form closed circular ring shape steel part, by the closed circular ring shape steel part in 185 DEG C, 11MPa conditions of vulcanization
Lower sulfurization forms one；
Step 2: polytetrafluoroethylene (PTFE) backing plate to be sticked in the vertical supporting component of vertical supporting member using epoxy resin
Then the circular ring shape steel part for the one that step 1 vulcanizes is detachably connected on vertical supporting component by top, and described
Polytetrafluoroethylene (PTFE) backing plate is located at the middle part of annular steel part；Lead is poured into from the top of multiple through holes I, sequentially enters multiple run through
In hole II, multiple radial holes, multiple through holes III and multiple locating slots, is formed and bear to squeeze the lead for retractable pencil with shear action, it is multiple
The sealing fastener sealing of the upper end of through hole I；The annular steel part is detachable with the vertical supporting component of vertical load-carrying members
The mode of connection are as follows: the exterior bottom of the annular steel part is reserved with annular connecting plate, is provided on the annular connecting plate more
A bolt hole I, the top of the vertical supporting component are provided with multiple pre-buried rod pieces I, and multiple bolt holes I are inserted into more respectively
Annular steel part and vertical supporting component are fixed by anchor bolt I after in a pre-buried rod piece I；The thickness of polytetrafluoroethylene (PTFE) backing plate
For 5mm；
Step 3: being located at round bearing bottom plate the top for being placed in polytetrafluoroethylene (PTFE) backing plate of round bearing bottom plate
Then the jag of the side of round bearing bottom plate and circular ring shape shearing steel plate is welded to connect by the middle part of circular ring shape steel part；Together
When round bearing bottom plate top welding be provided with cross-shaped support floor, in the top welded hollow steel of support floor
Ball；The surface of the hollow steel ball is connect with the rod piece of space roof structure, is formed empty for connecting in large-span space structure
Between roof system and vertical load-carrying members annular compound viscoelastic damping support.
Annular compound viscoelastic damping support for large span spatial structure damping energy consumption of the invention, in long-span space knot
During building is built, the connection of roof structure and vertical load-carrying members uses annular compound viscoelastic damping support, passes through lead in support
Core squeezes and shear plasticity deforms and the shearing lag return of viscoelastic material deforms energy consumption, to improve large-span space structure
Security performance under earthquake and high wind effect.Simultaneously as polytetrafluoroethylene (PTFE) backing plate can effectively reduce round bearing bottom
Force of sliding friction between plate and vertical member can give full play to the energy consumption of composite viscoelasticity material and lead for retractable pencil in damping supporting seat
Can, to realize shock absorption energy consumption effect of the annular compound viscoelastic damping support under geological process.Compared with existing support, ring
Shape composite viscoelasticity damping supporting seat uses mild steel, rubber, three kinds of Energy dissipating materials of lead and shear energy dissipation simultaneously, squeezes two kinds of energy consumption
Energy consumption mechanism, using annular compound viscoelastic damping support as effective passive control damping device, it can for structure
Wind resistance antivibration, and can be used in the antidetonation shock attenuation of structure, it is the resistance that a kind of energy dissipation capacity is strong, damping characteristic is good, stability is high
Buddhist nun's energy dissipating support.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (10)
1. a kind of annular compound viscoelastic damping support is used for connection space roof system and vertical load-bearing in large-span space structure
Structure characterized by comprising
Annular steel part, the ring channel structures with side opening；It is evenly arranged in the top plate of the annular steel part multiple
Through hole I is provided with the multiple locating slots opposite with multiple through holes I in bottom plate；The annular steel part has two pieces of semi-circulars
Steel part welds to be formed；
The double-deck annular compound viscoelastic material layer is separately positioned on the top inside the ring channel structures of annular steel part under
Side；Multiple through holes II corresponding with multiple through holes I are provided in the bilayer annular compound viscoelastic material layer；
The middle part of the ring channel structures of annular steel part is arranged in annular shearing steel plate, and is located at the double-deck annular compound viscoplasticity
Between material layer；Multiple through holes III corresponding with multiple through holes I are provided on the annular shearing steel plate；
Multiple lead for retractable pencils are arranged in respectively in multiple through holes I, multiple through holes II, multiple through holes III and multiple locating slots；
And the top of multiple through holes I is provided with sealing fastener；
Base-plate is set to the middle part of annular steel part, and the protrusion of the side of the base-plate and annular shearing steel plate
End is fixedly connected；The top connection of the base-plate is provided with cross-shaped support floor, connects above the support floor
Connect hollow steel ball；
Wherein, the annular steel part and the vertical supporting component of vertical load-carrying members are detachably connected, the table of the hollow steel ball
Face is connect with the rod piece of space roof structure；And it is located between the base-plate and vertical supporting component in the middle part of annular steel part and is arranged
There is polytetrafluoroethylene (PTFE) backing plate；The annular steel part, the double-deck annular compound viscoelastic material layer, annular shearing steel plate and multiple lead for retractable pencils
Match occlusion and base-plate is connected as whole Force transmission parts.
2. annular compound viscoelastic damping support as described in claim 1, which is characterized in that the annular steel part is circular ring shape
Steel part；The base-plate is round bearing bottom plate；The bilayer annular compound viscoelastic material layer is double-layer circular annular compound
Viscoelastic material layer；The annular shearing steel plate is circular ring shape shearing steel plate.
3. annular compound viscoelastic damping support as claimed in claim 2, which is characterized in that the round bearing bottom plate it is straight
Diameter is 50~100mm smaller than the internal diameter of circular ring shape steel part；The circular ring shape shearing steel plate with a thickness of 10~20mm, circular ring shape shearing
Steel plate 20~40mm away from the top of round bearing bottom plate.
4. annular compound viscoelastic damping support as described in claim 1, which is characterized in that the annular steel part is side's annular
Steel part；The base-plate is rectangular base-plate；The bilayer annular compound viscoelastic material layer is double-layer square annular compound
Viscoelastic material layer；The annular shearing steel plate is the annular shearing steel plate in side.
5. annular compound viscoelastic damping support as claimed in claim 4, which is characterized in that the side of the rectangular base-plate
The long small 50~100mm of side length for supposeing annular steel part；Side's annular shearing steel plate with a thickness of 10~20mm, side's annular shearing
Steel plate 20~40mm away from the top of rectangular base-plate.
6. annular compound viscoelastic damping support as described in claim 1, which is characterized in that it is described annular steel part with vertically hold
The mode of the vertical supporting component of weight structure being detachably connected are as follows: the exterior bottom of the annular steel part is reserved with annular connection
Plate is provided with multiple bolt holes I on the annular connecting plate, and the top of the vertical supporting component is provided with multiple pre-buried bars
Part I, multiple bolt holes I pass through anchor bolt I for annular steel part and vertical supporting structure after being inserted into multiple pre-buried rod pieces I respectively
Part is fixed.
7. annular compound viscoelastic damping support as described in claim 1, which is characterized in that it is described annular steel part with vertically hold
The mode of the vertical supporting component of weight structure being detachably connected are as follows: the top of the vertical supporting component is provided with pre-embedded steel slab
With multiple pre-buried rod pieces II；The bottom of the pre-embedded steel slab and annular steel part is welded to connect；And it is provided on the base-plate
Multiple bolt holes II, multiple bolt holes II pass through anchor bolt II for ring steel after being inserted into multiple pre-buried rod pieces II respectively
Part is fixed with vertical supporting component；And the polytetrafluoroethylene (PTFE) backing plate is set between base-plate and pre-embedded steel slab；It is described poly-
Tetrafluoroethene backing plate is sticked at the top of pre-embedded steel slab using epoxy resin, polytetrafluoroethylene (PTFE) backing plate with a thickness of 5mm.
8. annular compound viscoelastic damping support as described in claim 1, which is characterized in that the polytetrafluoroethylene (PTFE) backing plate is adopted
Stick in the top of the vertical supporting component of vertical supporting member with epoxy resin, polytetrafluoroethylene (PTFE) backing plate with a thickness of 5mm；Institute
The sector notch radius for stating support floor matches with the outer diameter of hollow steel ball；It is described bilayer annular compound viscoelastic material layer by
Sheet metal and rubber layer made of mild steel be superimposed after with annular steel part and annular shearing steel plate high temperature and pressure sulfurization shape
Integrally；Rubber layer is located at outside in the bilayer annular compound viscoelastic material layer, that is, forms the double-deck annular compound viscoplasticity
The rubber layer of material layer is one layer more than sheet metal；The depth of the multiple locating slot is 5mm；The diameter of the lead for retractable pencil be 15~
50mm；It is flushed at the top of the height of the sealing fastener and annular steel part, the diameter for sealing fastener is mutually bigger than the diameter of lead for retractable pencil
4mm。
9. annular compound viscoelastic damping support as described in claim 1, which is characterized in that the bilayer annular compound viscoelastic
It is provided with and is connected to multiple through holes II and vertical multiple radial holes in property material layer.
10. a kind of installation method of annular compound viscoelastic damping support as described in any one of claims 1 to 9, feature
It is, comprising the following steps:
Step 1: the double-deck annular compound viscoelastic material to be placed on to the annular groove of the annular steel part of two pieces of semi-circular steel parts formation
Above and below inside configuration, and annular shearing steel plate is placed between the double-deck annular compound viscoelastic material layer, is made simultaneously
Multiple through holes I, multiple locating slots, multiple through holes II, multiple through holes III are aligned, and then weld two pieces of semi-circular steel parts
Closed annular steel part is formed, by closed annular steel part sulfurization under 150~230 DEG C, 10~15MPa conditions of vulcanization
Form one；
Step 2: polytetrafluoroethylene (PTFE) backing plate to be sticked in the top of the vertical supporting component of vertical supporting member using epoxy resin
Then the annular steel part for the one that step 1 vulcanizes is detachably connected on vertical supporting component by portion, and described poly- four
Vinyl fluoride backing plate is located at the middle part of annular steel part；Lead is poured into from the top of multiple through holes I, sequentially enters multiple through holes
II, it in multiple through holes III and multiple locating slots, is formed and bears to squeeze the lead for retractable pencil with shear action, the upper end of multiple through holes I
With sealing fastener sealing；
Step 3: being located at base-plate in annular steel part the top for being placed in polytetrafluoroethylene (PTFE) backing plate of base-plate
Then the jag of the side of base-plate and annular shearing steel plate is welded to connect by portion；It is welded simultaneously in the top of base-plate
It connects and is provided with cross-shaped support floor, in the top welded hollow steel ball of support floor；The surface of the hollow steel ball and sky
Between roof structure rod piece connection, form the annular for connection space roof system and vertical load-carrying members in large-span space structure
Composite viscoelasticity damping supporting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910016033.8A CN109487914B (en) | 2019-01-08 | 2019-01-08 | Annular composite viscoelastic damping support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910016033.8A CN109487914B (en) | 2019-01-08 | 2019-01-08 | Annular composite viscoelastic damping support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109487914A true CN109487914A (en) | 2019-03-19 |
| CN109487914B CN109487914B (en) | 2023-08-22 |
Family
ID=65714199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910016033.8A Active CN109487914B (en) | 2019-01-08 | 2019-01-08 | Annular composite viscoelastic damping support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109487914B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001288927A (en) * | 2000-04-05 | 2001-10-19 | Mori Bill Kk | Seismically isolated structure |
| CN1616780A (en) * | 2004-11-19 | 2005-05-18 | 北京工业大学 | Multiple prestress steel structure shock-proof sliding estastic support seat |
| CN200975037Y (en) * | 2006-10-13 | 2007-11-14 | 北京工业大学 | Viscous damping device type three-dimensional vibration isolating device |
| CN101333829A (en) * | 2008-07-18 | 2008-12-31 | 北京工业大学 | Vertical spacing -type lead shearing three-dimensional vibration isolation device |
| CN201459926U (en) * | 2009-03-11 | 2010-05-12 | 华中科技大学 | Rubber multi-lead cord vibration isolating supporting base |
| CN101769015A (en) * | 2009-12-16 | 2010-07-07 | 湖南大学 | Tensile mechanism for stack rubber shock-insulating support seats |
| CN101775842A (en) * | 2009-10-23 | 2010-07-14 | 上海路博橡胶减振器技术有限公司 | Three-dimensional shock absorbing support |
| JP2013096221A (en) * | 2011-10-27 | 2013-05-20 | J Architecture System Inc | Simple vibration absorbing foundation packing |
| CN204059186U (en) * | 2014-08-06 | 2014-12-31 | 南京工业大学 | One-way lead core rubber shock insulation support |
| CN104775358A (en) * | 2015-03-31 | 2015-07-15 | 天津大学 | Novel self reset shock insulation support seat |
| CN204738222U (en) * | 2015-06-03 | 2015-11-04 | 王敏 | Bridge mobile support |
| US20150361656A1 (en) * | 2014-06-13 | 2015-12-17 | Dynamic Design CO., LTD. | Seismic isolation device and manufacturing method of the same |
| CN105648918A (en) * | 2016-01-14 | 2016-06-08 | 中铁大桥局集团第四工程有限公司 | Deviation device and construction method thereof |
| CN106223189A (en) * | 2016-07-18 | 2016-12-14 | 深圳市市政设计研究院有限公司 | Lead rubber laminated bearing, intelligence bearing and bearing monitoring system |
| CN108843724A (en) * | 2018-07-16 | 2018-11-20 | 河海大学 | A kind of novel variation rigidity variable damping earthquake isolating equipment based on STF |
-
2019
- 2019-01-08 CN CN201910016033.8A patent/CN109487914B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001288927A (en) * | 2000-04-05 | 2001-10-19 | Mori Bill Kk | Seismically isolated structure |
| CN1616780A (en) * | 2004-11-19 | 2005-05-18 | 北京工业大学 | Multiple prestress steel structure shock-proof sliding estastic support seat |
| CN200975037Y (en) * | 2006-10-13 | 2007-11-14 | 北京工业大学 | Viscous damping device type three-dimensional vibration isolating device |
| CN101333829A (en) * | 2008-07-18 | 2008-12-31 | 北京工业大学 | Vertical spacing -type lead shearing three-dimensional vibration isolation device |
| CN201459926U (en) * | 2009-03-11 | 2010-05-12 | 华中科技大学 | Rubber multi-lead cord vibration isolating supporting base |
| CN101775842A (en) * | 2009-10-23 | 2010-07-14 | 上海路博橡胶减振器技术有限公司 | Three-dimensional shock absorbing support |
| CN101769015A (en) * | 2009-12-16 | 2010-07-07 | 湖南大学 | Tensile mechanism for stack rubber shock-insulating support seats |
| JP2013096221A (en) * | 2011-10-27 | 2013-05-20 | J Architecture System Inc | Simple vibration absorbing foundation packing |
| US20150361656A1 (en) * | 2014-06-13 | 2015-12-17 | Dynamic Design CO., LTD. | Seismic isolation device and manufacturing method of the same |
| CN204059186U (en) * | 2014-08-06 | 2014-12-31 | 南京工业大学 | One-way lead core rubber shock insulation support |
| CN104775358A (en) * | 2015-03-31 | 2015-07-15 | 天津大学 | Novel self reset shock insulation support seat |
| CN204738222U (en) * | 2015-06-03 | 2015-11-04 | 王敏 | Bridge mobile support |
| CN105648918A (en) * | 2016-01-14 | 2016-06-08 | 中铁大桥局集团第四工程有限公司 | Deviation device and construction method thereof |
| CN106223189A (en) * | 2016-07-18 | 2016-12-14 | 深圳市市政设计研究院有限公司 | Lead rubber laminated bearing, intelligence bearing and bearing monitoring system |
| CN108843724A (en) * | 2018-07-16 | 2018-11-20 | 河海大学 | A kind of novel variation rigidity variable damping earthquake isolating equipment based on STF |
Non-Patent Citations (5)
| Title |
|---|
| LEI ZHANG: "《Analysis and design of smart mandrels using shape memory polymers》", 《COMPOSITES: PART B》, pages 230 - 238 * |
| 吴志强: "《新型竖向半燕尾榫节点抗震性能研究》", 《四川建筑科学研究》, pages 21 - 25 * |
| 张兆强;姚勇;徐羊;撒燕茹;曹帅;吴先哲;: "圆钢管再生混凝土柱-H型钢梁外加强环式边节点抗震性能试验研究", 建筑科学, no. 11 * |
| 张哲: "《环形复合粘弹性阻尼支座抗震性能研究》", 《工程科技Ⅱ辑》, no. 08, pages 6 - 17 * |
| 张文;雷劲松;: "不同地震烈度对LRB支座隔震效果的影响分析", 广东建材, no. 09 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109487914B (en) | 2023-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018072366A1 (en) | Self-resetting and assembly-type flexible anti-seismic structure for subway station | |
| CN205399726U (en) | Insulation construction is gone along with sb. to guard him to steel construction system outer wall | |
| CN101105054A (en) | Double-layer sleeve cross buckling restrained brace with diaphragm plate | |
| CN209339323U (en) | For the annular compound viscoelastic damping support in large-span space structure | |
| CN205399745U (en) | Steel construction system interior wall structure | |
| CN108412061B (en) | Thin external wall external heat preservation system of plastering and prefabricated compound heat preservation PLASTIC LAMINATED thereof | |
| CN109487914A (en) | Annular compound viscoelastic damping support | |
| CN207727774U (en) | A kind of aluminium alloy plate type node structure that web is reinforced | |
| CN204174839U (en) | Honeycomb connecting steel plate-double-limb steel pipe concrete combined column | |
| CN108928054A (en) | A kind of good sandwich composite board of crashworthiness | |
| CN208346986U (en) | A kind of assembled steel tube-bamboo slab rubber combination node of column and beam | |
| CN210597722U (en) | Structure for improving anti-seismic performance of connection part of concrete structure outer wall and shear wall | |
| CN205637172U (en) | Multicavity steel pipe -concrete composite post and girder steel bolted connection node | |
| CN204174837U (en) | Honeycomb-shaped steel web-steel pipe concrete flange combined cross-shaped column | |
| CN204252392U (en) | Corrugated steel web-steel pipe concrete flange combined section L-shaped column | |
| CN103967216A (en) | L-shaped section light steel-small diameter wood combined bearing column and manufacturing method thereof | |
| CN110670762B (en) | Light steel-steel rope-small-diameter material-composite board surface layer in-line combined wall and manufacturing method | |
| CN202280177U (en) | Semi-rigid frame-steel plate shear wall structure | |
| CN204174836U (en) | Honeycomb connecting steel plate-three-limb circular steel tube concrete combined column | |
| CN204174835U (en) | T-shaped column with combined section of honeycomb-shaped steel web plate-steel pipe concrete flange | |
| CN220978547U (en) | Assembled heat preservation wall sandwich layer structure | |
| CN214942945U (en) | Node in steel construction archaize building of built-in shear type friction damper | |
| CN214062002U (en) | Noise-reduction heat insulation plate structure for prefabricated house | |
| CN204174838U (en) | Honeycomb connecting steel plate-four-limb steel pipe concrete combined column | |
| CN220167228U (en) | Assembled buckling restrained damping wall structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |