CN107100207B - A kind of earthquake isolating equipment of tall building foundation - Google Patents
A kind of earthquake isolating equipment of tall building foundation Download PDFInfo
- Publication number
- CN107100207B CN107100207B CN201710232155.1A CN201710232155A CN107100207B CN 107100207 B CN107100207 B CN 107100207B CN 201710232155 A CN201710232155 A CN 201710232155A CN 107100207 B CN107100207 B CN 107100207B
- Authority
- CN
- China
- Prior art keywords
- wall
- bulb
- sliding slot
- earthquake isolating
- isolating equipment
- 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.)
- Expired - Fee Related
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/08—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against transmission of vibrations or movements in the foundation soil
Abstract
The invention belongs to earthquake isolating equipment technical field, especially a kind of earthquake isolating equipment of tall building foundation, the technical problem persistently reduced for earthquake isolating equipment extension recovery ability, now propose following scheme, including the building base set gradually from top to bottom, mounting base and ground, and building base, mounting base and ground are sequentially connected, both sides at the top of the ground are equipped with retractable support column, and the top and bottom of retractable support column are welded with fixed plate, and connected between two fixed plates by spiral compression spring, the spiral compression spring be arranged with the outer wall of retractable support column.In the present invention, bulb and ball rolling friction, reduce the abrasion of bulb and sliding slot inner wall, the service life of bulb and sliding slot is added, buffer unit can apply active force to bulb, avoid bulb from sliding relatively large distance, and metal parts corrosion is greatly avoided, improve the stability of device.
Description
Technical field
The present invention relates to earthquake isolating equipment machine technical field, more particularly to a kind of earthquake isolating equipment of tall building foundation.
Background technology
Earthquake brings too many disaster and pain to the mankind.But earthquake in itself has no the mankind great injury, earthquake
Disaster is mainly manifested in secondary destruction caused by the collapsing etc. of disaster area building, and life and property to people bring great
Loss.With the maturation of the theory of architecture, prevent and reduce natural disasters into an eternal topic.
Chinese patent Authorization Notice No. CN202899302U proposes " skyscraper shock isolating pedestal " for this, in the patent document
The anti-seismic performance of building is added between construction bottom and ground by the way that friction-pendulum shock-insulation support is installed on, it is contemplated that friction pendulum
The flammability of shock isolating pedestal, protective device is set in the outside of friction-pendulum shock-insulation support, but friction-pendulum shock-insulation support is installed on
Between ground and construction bottom, and shock isolating pedestal is in sealing state, therefore wastes resource.
To solve the problems, such as seismic house collapse, Chinese patent Authorization Notice No. CN103643749A proposes " combination
Formula skyscraper shock isolating pedestal " solves tensile capacity deficiency of the shock isolating pedestal in skyscraper, isolating affection is poor, wind load resistant
The problem of loading capability is weak, and solve the problems, such as that over-large displacement that low resistance can produce and low resistance can not overcome the load of wind, but
In the patent " dynamic lever be pressed in determine the top of lever intersect into " ten " font ", and building is pressed on upper junction plate, therefore dynamic
Lever and determine to rub between lever larger, dynamic lever and determine lever easy to wear and deformation, abrasion and deformed dynamic lever and determine
Lever tensile capacity reduces, and makes the reduction of shock insulation recoverability.
The content of the invention
The problem of persistently being reduced based on shock isolating pedestal security protection existing for background technology and extension recovery ability, the present invention
Propose a kind of earthquake isolating equipment of tall building foundation.
A kind of earthquake isolating equipment of tall building foundation proposed by the present invention, including the building bottom set gradually from top to bottom
Seat, mounting base and ground, and build base, mounting base and ground and be sequentially connected, the both sides at the top of the ground are equipped with flexible
Support column, and the top and bottom of retractable support column are welded with fixed plate, and pass through helical compression bullet between two fixed plates
Spring connects, and the spiral compression spring is set on the outer wall of retractable support column, and the fixation of retractable support column top and bottom
Plate is connected by the top exterior walls of the bottom outer wall and ground of foundation bolt and mounting base respectively, and two retractable support columns are opposite
Baffle is welded with the outer wall of side, and filler is filled between two baffles, at the top of the mounting base on the outer wall of both sides
Shock isolating pedestal has been bolted, and the top of shock isolating pedestal is connected by bolt with building the bottom outer wall of base, it is described
The top of mounting base is equipped with sliding slot, and sliding slot is located between two shock isolating pedestals, and bulb is slidably fitted with the inner wall of sliding slot,
And the top of bulb is connected by connecting pole with building the bottom outer wall of base, and buffering is welded with the both sides outer wall of bulb
Device, the buffer unit are hollow structure, and the buffer unit includes the oil drum being connected with sliding slot both ends inner wall and traction bullet
Spring, and several catch being equidistantly positioned are slidably fitted with the inner wall of oily cylinder, and be equipped with and equidistantly distribute on several catch
Through hole, and catch is fixedly connected by slide bar, and slide bar is slidably connected with the oily one end of cylinder away from sliding slot, and slide bar is away from gear
One end of piece and the outer wall of bulb weld, and are arranged with stiff spring, and one end of stiff spring and bulb on the outer wall of oily cylinder
Welding, the other end of stiff spring are connected with the inner wall of sliding slot one end, and the inner wall of the sliding slot is recessed equipped with equidistantly distributing
Hole, and ball is embedded with the top inner wall of shrinkage pool, and be equipped between the bottom outer wall of ball and the bottom interior wall of shrinkage pool built-in
Spring, and the bottom of built-in spring is mutually be bonded with the bottom interior wall of shrinkage pool.
Preferably, the retractable support column includes the outer support seat of hollow structure, is slidably installed on the inner wall of outer support seat
There is supporting rod, and the bottom outer wall of supporting rod is connected with compounded rubber spring, and the one end of compounded rubber spring away from supporting rod
It is connected with the bottom interior wall of outer support seat.
Preferably, it is coated with fire resistant coating on the outer wall of the shock isolating pedestal.
Preferably, it is connected with ball base at the top of the built-in spring, and ball base is equipped with groove, groove and ball
Bottom outer wall is adapted.
Preferably, the inner wall of the ball and shrinkage pool forms interference fit, and the interference difference of ball and shrinkage pool inner wall is
0.3-0.5 millimeters.
Preferably, the filler includes sand stone layer, quick lime and dry soil mixed layer and rice husk layer, and sand stone layer, life
Lime and dry soil mixed layer and rice husk layer are sequentially filled between adjacent baffle from the bottom up.
Preferably, it is sealed with hydraulic oil in two oily cylinders.
Preferably, the junction of the slide bar and oily cylinder is equipped with sealing ring.
Preferably, the quantity of the catch is three to five, and catch is socketed on the outer wall of slide bar, and through hole on catch
A diameter of three to five millimeters.
Preferably, the center position of the bottom of the building base is equipped with mounting hole, and the top of connecting pole is embedded in peace
Fill in hole, and connecting pole is fixedly connected by expansion bolt with the inner wall of mounting hole.
Beneficial effects of the present invention are：1. bulb is installed in sliding slot, and the inner wall of bulb and sliding slot is slidably connected, sliding slot
Inner wall be equipped with shrinkage pool, in shrinkage pool interference ball is installed, ball forms to roll with bulb to be coordinated, by bulb and sliding slot inner wall
Sliding friction be changed into the rolling friction of ball and bulb, reduce the abrasion of bulb and sliding slot inner wall, add bulb and
The service life of sliding slot；
2. during earthquake, building base, shock isolating pedestal move left and right, building base drives bulb in cunning by connecting pole
Horizontally slip in groove, bulb both sides outer wall is connected with buffer unit, and when bulb moves, slide bar drives catch on the inner wall of oily cylinder
Slide, opposite side of the hydraulic oil in oily cylinder from the side of catch by flow therethrough to catch, hydraulic oil is applied to catch resistance
Power, can reduce sliding speed of the catch on oily cylinder inner wall, and two stiff springs are in one of them and are compressed, another is drawn
Stretch, apply dynamics to bulb, bulb sliding distance can be avoided larger；
3. retractable support column adds the buffering dynamics between mounting base and ground, impact of the ground to mounting base is reduced
Power, adds the stability of mounting base, and filler can avoid moisture from assembling between mounting base and ground, greatly avoids
Metal parts corrosion.
In the present invention, bulb and ball rolling friction, reduce the abrasion of bulb and sliding slot inner wall, add bulb and cunning
The service life of groove, buffer unit can apply active force to bulb, avoid bulb from sliding relatively large distance, and greatly avoid gold
Belong to part corrosion, improve the stability of device.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of the earthquake isolating equipment of tall building foundation proposed by the present invention.
Fig. 2 is a kind of suction head structure diagram of the earthquake isolating equipment of tall building foundation proposed by the present invention.
Fig. 3 is a kind of suction head structure diagram of the earthquake isolating equipment of tall building foundation proposed by the present invention.
Fig. 4 is a kind of suction head structure diagram of the earthquake isolating equipment of tall building foundation proposed by the present invention.
Fig. 5 is a kind of suction head structure diagram of the earthquake isolating equipment of tall building foundation proposed by the present invention.
Fig. 6 is a kind of suction head structure diagram of the earthquake isolating equipment of tall building foundation proposed by the present invention.
In figure：1 building base, 2 mounting bases, 3 grounds, 4 retractable support columns, 5 spiral compression springs, 6 fixed plates, 7 baffles,
8 fillers, 9 shock isolating pedestals, 10 connecting poles, 11 bulbs, 12 sliding slots, 13 oily cylinders, 14 slide bars, 15 catch, 16 through holes, 17 traction bullets
Spring, 18 shrinkage pools, 19 balls, spring, 21 outer support seats, 22 supporting rods, 23 compounded rubber springs built in 20.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.
With reference to Fig. 1-6, a kind of earthquake isolating equipment of tall building foundation, including set gradually from top to bottom building base 1,
Mounting base 2 and ground 3, and build base 1, mounting base 2 and ground 3 and be sequentially connected, the both sides at the top of ground 3 are equipped with flexible branch
Dagger 4, and the top and bottom of retractable support column 4 are welded with fixed plate 6, and pass through helical compression between two fixed plates 6
Spring 5 connects, and spiral compression spring 5 is arranged and on the outer wall of retractable support column 4, and retractable support column 4 top and bottom being consolidated
Fixed board 6 is connected by foundation bolt with the bottom outer wall of mounting base 2 and the top exterior walls of ground 3 respectively, and two retractable supports
Baffle 7 is welded with 4 opposite side outer wall of column, and filler 8 is filled between two baffles 7, outside 2 top both sides of mounting base
Shock isolating pedestal 9 is bolted on wall, and the top of shock isolating pedestal 9 passes through the bottom outer wall of bolt and building base 1
Connection, the top of mounting base 2 is equipped with sliding slot 12, and sliding slot 12 is sliding between two shock isolating pedestals 9, and on the inner wall of sliding slot 12
It is dynamic that bulb 11 is installed, and the top of bulb 11 is connected by connecting pole 10 with building the bottom outer wall of base 1, and bulb 11
It is welded with buffer unit on the outer wall of both sides, the buffer unit is hollow structure, and the buffer unit includes and 12 liang of sliding slot
The oil drum 13 and stiff spring 17 of inner wall connection are held, and several catch being equidistantly positioned are slidably fitted with the inner wall of oily cylinder 13
15, and the through hole 16 equidistantly distributed is equipped with several catch 15, and catch 15 is fixedly connected by slide bar 14, and slide bar 14
It is slidably connected with the oily one end of cylinder 13 away from sliding slot 12, and the one end of slide bar 14 away from catch 15 and the outer wall of bulb 11 weld,
And stiff spring 17 is arranged with the outer wall of oily cylinder 13, and one end of stiff spring 17 is welded with bulb 11, stiff spring 17
The other end is connected with the inner wall of 12 one end of sliding slot, and the inner wall of sliding slot 12 is equipped with the shrinkage pool 18 equidistantly distributed, and shrinkage pool 18
Ball 19 is embedded with top inner wall, and built-in spring is equipped between the bottom outer wall of ball 19 and the bottom interior wall of shrinkage pool 18
20, and the bottom of built-in spring 20 is mutually be bonded with the bottom interior wall of shrinkage pool 18.
In the present invention, retractable support column 4 includes the outer support seat 21 of hollow structure, and peace is slided on the inner wall of outer support seat 21
Equipped with supporting rod 22, and the bottom outer wall of supporting rod 22 connects
There are compounded rubber spring 23, and the one end of compounded rubber spring 23 away from supporting rod 22 and the bottom of outer support seat 21
Inner wall connects, and is coated with fire resistant coating on the outer wall of shock isolating pedestal 9, the top of built-in spring 20 is connected with ball base, and ball
Seat is equipped with groove, and groove is adapted with the bottom outer wall of ball 19, and the inner wall of ball 19 and shrinkage pool 18, which is formed, to be interference fitted, and
Ball 19 and the interference difference of 18 inner wall of shrinkage pool are 0.3-0.5 millimeters, and filler 8 is mixed including sand stone layer, quick lime and dry soil
Layer and rice husk layer are closed, and sand stone layer, quick lime and dry soil mixed layer and rice husk layer are sequentially filled into adjacent gear from the bottom up
Between plate 7, hydraulic oil is sealed with two oily cylinders 13, slide bar 14 and the junction of oily cylinder 13 are equipped with sealing ring, catch 15
Quantity is three to five, and catch 15 is socketed on the outer wall of slide bar 14, and a diameter of three to five millimeters of through hole 16 on catch 15,
The center position for building the bottom of base 1 is equipped with mounting hole, and the top of connecting pole 10 is embedded in mounting hole, and connecting pole 10
It is fixedly connected by expansion bolt with the inner wall of mounting hole.
During earthquake, building base 1, shock isolating pedestal 9 are moved left and right relative to mounting base 2 and ground 3, build base 1
Bulb 11 is driven to horizontally slip in sliding slot 12 by connecting pole 10, the inner wall of sliding slot 12 is equipped with shrinkage pool 18, mistake in shrinkage pool 18
It is full of and ball 19 is installed, ball 19 forms to roll with bulb 11 is coordinated, and the sliding friction of bulb 11 and 12 inner wall of sliding slot is changed
For the rolling friction of ball 19 and bulb 11, the abrasion of 12 inner wall of bulb 11 and sliding slot is reduced, adds bulb 11 and sliding slot
12 service life, 11 both sides outer wall of bulb is connected with buffer unit, when bulb 11 moves, the slide bar 14 of 11 both sides of bulb connection
Catch 15 is driven to be slided on the inner wall of oily cylinder 13, the hydraulic oil in oily cylinder 13 is flowed to from the side of catch 15 by through hole 16
The opposite side of catch 15, hydraulic oil are applied to 15 resistance of catch, can reduce sliding speed of the catch 15 on oily 13 inner wall of cylinder, from
And delay bulb 11, connecting pole 10, shock isolating pedestal 9 and the translational speed for building base 1, and one of stiff spring 17 is pressed
Contracting, another stiff spring 17 is stretched, and when seismic amplitude reduces, stiff spring 17 slowly promotes bulb 11 to sliding slot 12
Centre position is slided, so as to drive connecting pole 10, shock isolating pedestal 9 and building base 1 to reply the position before earthquake.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of earthquake isolating equipment of tall building foundation, including the building base set gradually from top to bottom（1）, mounting base（2）
And ground（3）, and build base（1）, mounting base（2）And ground（3）It is sequentially connected, it is characterised in that the ground（3）Top
Both sides be equipped with retractable support column（4）, and retractable support column（4）Top and bottom be welded with fixed plate（6）, and two
Fixed plate（6）Between pass through spiral compression spring（5）Connection, the spiral compression spring（5）It is set in retractable support column（4）'s
On outer wall, and retractable support column（4）The fixed plate of top and bottom（6）Pass through foundation bolt and mounting base respectively（2）Bottom
Outer wall and ground（3）Top exterior walls connection, and two retractable support columns（4）Baffle is welded with opposite side outer wall（7）,
And two baffles（7）Between be filled with filler（8）, the mounting base（2）It has been bolted on the outer wall of top both sides
Shock isolating pedestal（9）, and shock isolating pedestal（9）Top pass through bolt with building base（1）Bottom outer wall connection, the mounting base
（2）Top be equipped with sliding slot（12）, and sliding slot（12）Positioned at two shock isolating pedestals（9）Between, and sliding slot（12）Inner wall on it is sliding
It is dynamic that bulb is installed（11）, and bulb（11）Top pass through connecting pole（10）With building base（1）Bottom outer wall connection, and
Bulb（11）Both sides outer wall on be welded with buffer unit, the buffer unit is hollow structure, and the buffer unit includes
With sliding slot（12）The oily cylinder of both ends inner wall connection（13）And stiff spring（17）, and oily cylinder（13）Inner wall on be slidably fitted with number
A catch being equidistantly positioned（15）, and several catch（15）On be equipped with the through hole equidistantly distributed（16）, and catch（15）
Pass through slide bar（14）It is fixedly connected, and slide bar（14）With oily cylinder（13）Away from sliding slot（12）One end be slidably connected, and slide bar
（14）Away from catch（15）One end and bulb（11）Outer wall welding, and oily cylinder（13）Outer wall on be arranged with stiff spring
（17）, and stiff spring（17）One end and bulb（11）Welding, stiff spring（17）The other end and sliding slot（12）One end
Inner wall connects, the sliding slot（12）Inner wall be equipped with the shrinkage pool that equidistantly distributes（18）, and shrinkage pool（18）Top inner wall on
Embedded with ball（19）, and ball（19）Bottom outer wall and shrinkage pool（18）Bottom interior wall between be equipped with built-in spring（20）,
And built-in spring（20）Bottom and shrinkage pool（18）Bottom interior wall be mutually bonded.
A kind of 2. earthquake isolating equipment of tall building foundation according to claim 1, it is characterised in that the retractable support column
（4）Outer support seat including hollow structure（21）, outer support seat（21）Inner wall on be slidably fitted with supporting rod（22）, and support
Bar（22）Bottom outer wall be connected with compounded rubber spring（23）, and compounded rubber spring（23）Away from supporting rod（22）One end
With outer support seat（21）Bottom interior wall connection.
A kind of 3. earthquake isolating equipment of tall building foundation according to claim 1, it is characterised in that the shock isolating pedestal
（9）Outer wall on be coated with fire resistant coating.
A kind of 4. earthquake isolating equipment of tall building foundation according to claim 1, it is characterised in that the built-in spring
（20）Top be connected with ball base, and ball base is equipped with groove, groove and ball（19）Bottom outer wall be adapted.
A kind of 5. earthquake isolating equipment of tall building foundation according to claim 1, it is characterised in that the ball（19）With
Shrinkage pool（18）Inner wall form interference fit, and ball（19）With shrinkage pool（18）The interference difference of inner wall is 0.3-0.5 millimeters.
A kind of 6. earthquake isolating equipment of tall building foundation according to claim 1, it is characterised in that the filler（8）
Including sand stone layer, quick lime and dry soil mixed layer and rice husk layer, and sand stone layer, quick lime and dry soil mixed layer and rice husk layer
It is sequentially filled from the bottom up into adjacent baffle（7）Between.
A kind of 7. earthquake isolating equipment of tall building foundation according to claim 1, it is characterised in that two oily cylinders
（13）Inside it is sealed with hydraulic oil.
A kind of 8. earthquake isolating equipment of tall building foundation according to claim 1, it is characterised in that the slide bar（14）With
Oily cylinder（13）Junction be equipped with sealing ring.
A kind of 9. earthquake isolating equipment of tall building foundation according to claim 1, it is characterised in that the catch（15）'s
Quantity is three to five, catch（15）It is socketed on slide bar（14）Outer wall on, and catch（15）Upper through hole（16）A diameter of three
To five millimeters.
A kind of 10. earthquake isolating equipment of tall building foundation according to claim 1, it is characterised in that the building base
（1）The center position of bottom be equipped with mounting hole, and connecting pole（10）Top be embedded in mounting hole, and connecting pole（10）It is logical
Expansion bolt is crossed to be fixedly connected with the inner wall of mounting hole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810304429.8A CN108468354B (en) | 2017-04-11 | 2017-04-11 | Skyscraper foundation isolation protective device |
| CN201710232155.1A CN107100207B (en) | 2017-04-11 | 2017-04-11 | A kind of earthquake isolating equipment of tall building foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710232155.1A CN107100207B (en) | 2017-04-11 | 2017-04-11 | A kind of earthquake isolating equipment of tall building foundation |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810304429.8A Division CN108468354B (en) | 2017-04-11 | 2017-04-11 | Skyscraper foundation isolation protective device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107100207A CN107100207A (en) | 2017-08-29 |
| CN107100207B true CN107100207B (en) | 2018-05-11 |
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ID=59674929
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810304429.8A Active CN108468354B (en) | 2017-04-11 | 2017-04-11 | Skyscraper foundation isolation protective device |
| CN201710232155.1A Expired - Fee Related CN107100207B (en) | 2017-04-11 | 2017-04-11 | A kind of earthquake isolating equipment of tall building foundation |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810304429.8A Active CN108468354B (en) | 2017-04-11 | 2017-04-11 | Skyscraper foundation isolation protective device |
Country Status (1)
| Country | Link |
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| CN (2) | CN108468354B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468354B (en) * | 2017-04-11 | 2019-11-19 | 青岛亿联建设集团股份有限公司 | Skyscraper foundation isolation protective device |
| CN107724441B (en) * | 2017-11-08 | 2019-07-09 | 天宏控股集团有限公司 | One kind having damping type building |
| CN108179909A (en) * | 2018-01-24 | 2018-06-19 | 广州大学 | A kind of multistage frequency conversion becomes friction-pendulum shock-insulation support |
| CN110318551B (en) * | 2019-08-06 | 2024-03-22 | 重庆建工住宅建设有限公司 | Building shockproof correction structure and correction method |
| CN110850506B (en) * | 2019-10-28 | 2021-06-01 | 中国路桥工程有限责任公司 | Wind-resistant vibration-damping railway wind section meteorological monitoring equipment |
| CN110924551B (en) * | 2019-12-02 | 2020-12-29 | 滁州市华硕建筑工程有限公司 | Friction sliding bearing seat vibration reduction structure between ground and building |
| CN111456111B (en) * | 2020-03-12 | 2021-08-03 | 浙江大学城市学院 | Shock isolation device for high-rise building foundation |
| CN111485568A (en) * | 2020-04-29 | 2020-08-04 | 乐清市城镇建设工程公司 | Anti-sedimentation foundation structure |
| CN112302186A (en) * | 2020-09-16 | 2021-02-02 | 北京工业大学 | Circular arc groove roller friction support for support column of underground subway station |
| CN112302187B (en) * | 2020-09-16 | 2022-09-30 | 北京工业大学 | Rolling friction support for underground subway station support column |
| CN114961008B (en) * | 2022-04-29 | 2023-11-21 | 中交一公局集团有限公司 | Friction type damper based on assembled steel structure residential structure system |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108468354A (en) | 2018-08-31 |
| CN107100207A (en) | 2017-08-29 |
| CN108468354B (en) | 2019-11-19 |
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