CN111519781A - Bidirectional sliding piston rod type shock insulation tensile device - Google Patents

Bidirectional sliding piston rod type shock insulation tensile device Download PDF

Info

Publication number
CN111519781A
CN111519781A CN202010363128.XA CN202010363128A CN111519781A CN 111519781 A CN111519781 A CN 111519781A CN 202010363128 A CN202010363128 A CN 202010363128A CN 111519781 A CN111519781 A CN 111519781A
Authority
CN
China
Prior art keywords
guide rail
piston rod
buttress
embedded guide
rod type
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.)
Pending
Application number
CN202010363128.XA
Other languages
Chinese (zh)
Inventor
吴宏磊
陈长嘉
王世玉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Architecture Design and Research Institute of Tongji University Group Co Ltd
Original Assignee
Architecture Design and Research Institute of Tongji University Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Architecture Design and Research Institute of Tongji University Group Co Ltd filed Critical Architecture Design and Research Institute of Tongji University Group Co Ltd
Priority to CN202010363128.XA priority Critical patent/CN111519781A/en
Publication of CN111519781A publication Critical patent/CN111519781A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92Protection against other undesired influences or dangers
    • E04B1/98Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/36Bearings or like supports allowing movement
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02Buildings, 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
    • E04H9/021Bearing, supporting or connecting constructions specially adapted for such buildings

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The invention relates to a bidirectional sliding piston rod type shock insulation tensile device which comprises an upper buttress (1), a shock insulation support (3), a lower buttress (2), an upper embedded guide rail (4), a lower embedded guide rail (6) and a plurality of piston cylinders (5), wherein the upper buttress, the shock insulation support and the lower buttress are sequentially connected, the upper embedded guide rail (4) and the lower embedded guide rail (6) are respectively arranged on the upper buttress (1) and the lower buttress (2) and are vertical to each other, and two ends of each piston cylinder (5) are respectively and movably connected to the upper embedded guide rail (4) and the lower embedded guide rail (6). Compared with the prior art, the invention has the advantages of simple structure, wide application range and the like.

Description

Bidirectional sliding piston rod type shock insulation tensile device
Technical Field
The invention relates to a building shock insulation support technology, in particular to a piston rod type shock insulation tensile device capable of sliding in two directions.
Background
The seismic isolation technology isolates the upward transmission of seismic energy by arranging a seismic isolation support between a foundation or a lower structure and an upper structure, and is a measure for efficiently and stably reducing the seismic action. By reasonable design, the seismic isolation technology is almost suitable for all building types and structural forms. Along with the development of a seismic isolation design theory and the maturity of seismic isolation products, the application of a seismic isolation technology in a building structure is increasingly wide, and common seismic isolation support products comprise rubber seismic isolation supports, elastic sliding plate supports, friction pendulum supports and the like.
The shock insulation support generally has good compression resistance, but generally has poor tensile property. For a seismic isolation building with a large height-to-width ratio, the seismic isolation support is easy to be pulled under the action of an earthquake, so that the seismic isolation support is damaged by being pulled, and the safety of the whole structure is influenced. How to overcome the tension defect of the shock insulation support becomes a key factor for restricting the application of the shock insulation technology in a building with a large height-width ratio.
The prior art also provides some solutions, Chinese patent CN201911019999.3 proposes an anti-overturn friction pendulum vibration isolation support and an assembly method thereof, the support comprises an upper support plate and a lower support plate, the upper surface of the lower support plate is provided with a lower swinging body which is composed of a lower swinging body bottom plate, a sliding lining plate, a spherical hinge body with a spherical crown at the upper part and a spherical hinge cover plate at the lower part, the lower swinging body bottom plate is provided with a transverse lower guide strip, the lower support plate is provided with a lower tensile guide rail, the top surface of the sliding lining plate is in spherical contact with the bottom surface of the spherical crown, the top surface of the spherical crown is in spherical contact with the inner wall of the spherical hinge cover plate, the spherical hinge cover plate is connected with the lower swinging body bottom plate through screw threads, the lower surface of the upper support plate is provided with an upper swinging body which is provided with a longitudinal upper guide strip, the upper support plate is provided with an upper tensile guide rail, a column hole at the lower end of the upper swinging body, and the earthquake-proof building can bear the pressure and the tension during the earthquake and prevent the building from overturning.
However, the patent has the following problems:
this patent adopts gib block and tensile guide rail to carry out horizontal slip only when tensile, can't carry out longitudinal movement, does not have the cushioning effect, and easy damage, shock resistance is poor, and this structure only is applicable to the friction pendulum support simultaneously.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a bidirectional sliding piston rod type shock-insulation tensile device which is simple in structure and wide in application range.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a two way sliding's piston rod formula shock insulation tensile means, includes buttress, isolation bearing, buttress down, goes up pre-buried guide rail, lower pre-buried guide rail and a plurality of piston barrel, last buttress, isolation bearing and lower buttress connect gradually, last buttress and buttress down be the concrete buttress, last pre-buried guide rail with pre-buried guide rail part pre-buried in the concrete of last buttress and buttress down respectively down, and go up pre-buried guide rail and pre-buried guide rail's setting direction mutually perpendicular down, piston barrel both ends difference swing joint on last pre-buried guide rail, lower pre-buried guide rail.
Further, the quantity of going up pre-buried guide rail and pre-buried guide rail down be 2, 2 way go up pre-buried guide rail parallel arrangement on last buttress and be located the shock insulation support both sides, 2 way pre-buried guide rail parallel arrangement down on the buttress and be located the shock insulation support both sides, the quantity of piston cylinder be 4, 4 piston cylinders are the four corners and distribute.
Furthermore, ball joints are fixed at two ends of the piston cylinder and connected with the upper embedded guide rail and the lower embedded guide rail through buckles.
Further, last embedded rail and all be equipped with the location arch on the embedded rail down, the buckle on be equipped with the positioning groove the same with the protruding shape in location, the protruding positioning groove that inserts of location, realize the location of buckle, simultaneously through connecting bolt with the buckle through with last embedded rail and lower embedded rail fixed, the material of buckle be the steel.
Furthermore, the cross section of the positioning protrusion is trapezoidal, so that the strength is high and the stability is good.
Furthermore, the top surface of the positioning protrusion and the bottom surface of the positioning groove are both provided with fixing grooves with semicircular sections, so that a cavity for clamping the ball joint is formed, the ball joint can slide in the cavity with the circular sections, one end of the ball joint penetrates through the bottom of the positioning groove and is connected with the cylinder, the stability is good, and the ball joint is not easy to damage and fall off.
Furthermore, the contact surfaces of the spherical joint and the buckle, the upper embedded guide rail and the lower embedded guide rail are coated with polytetrafluoroethylene coatings for lubrication, so that the wear resistance is improved.
Further, the piston cylinder include piston rod and the drum of being connected with last pre-buried guide rail and lower pre-buried guide rail respectively, the drum in the level be equipped with the cardboard, piston rod one end be equipped with the overhead kick and pass the cardboard, realize the transmission of pulling force between piston rod and the drum.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the invention, the upper buttress and the lower buttress are connected through the shock insulation support, the upper embedded guide rail and the lower embedded guide rail are respectively embedded on the upper buttress and the lower buttress, the arrangement directions of the upper embedded guide rail and the lower embedded guide rail are vertical, a plurality of piston cylinders are movably connected on the upper embedded guide rail and the lower embedded guide rail, and the piston cylinders are used for stretching resistance, so that the shock insulation support has a simple structure, only generates a vertical tension effect on the shock insulation support, has no additional influence on the horizontal performance of the shock insulation support, can effectively ensure the horizontal shock insulation performance of the shock insulation support, has a simple structure, is simultaneously suitable for different types of shock insulation;
(2) according to the invention, the spherical joints are fixed at two ends of the piston cylinder and are connected with the upper embedded guide rail and the lower embedded guide rail through the buckles, so that the friction force is small and the service life is long;
(3) the positioning protrusions are arranged on the upper embedded guide rail and the lower embedded guide rail, the buckle is provided with the positioning groove which is the same as the positioning protrusions in shape, the positioning protrusions are inserted into the positioning grooves, and the buckle is fixed with the upper embedded guide rail and the lower embedded guide rail through the connecting bolt, so that the buckle is positioned and fixed, and the stability is high;
(4) according to the invention, the top surface of the positioning protrusion and the bottom surface of the positioning groove are both provided with the fixing grooves with semicircular sections to form the cavity for clamping the ball joint, so that the ball joint can slide in the cavity with the circular section, the stability is good, and the ball joint is not easy to damage and fall off;
(5) the cross section of the positioning bulge is trapezoidal, so that the strength is high, and the service life is long;
(6) according to the invention, the polytetrafluoroethylene coatings are coated on the contact surfaces of the spherical joint and the buckle, the upper embedded guide rail and the lower embedded guide rail, so that the friction is reduced, and the service life is long;
(7) according to the invention, the piston rod and the cylinder of the piston cylinder are respectively connected with the upper embedded guide rail and the lower embedded guide rail, the clamping plate is horizontally arranged in the cylinder, the barb is arranged at one end of the piston rod and penetrates through the clamping plate, so that the transmission of the tensile force between the piston rod and the cylinder is realized, and the overall tensile bearing capacity of the device can be easily adjusted by adjusting the sizes and the materials of the sections of the piston rod and the cylinder.
Drawings
FIG. 1 is a side view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a schematic structural view of the connection between the piston cylinder and the lower embedded guide rail;
FIG. 5 is a schematic structural view of the piston cylinder;
FIG. 6 is a schematic structural view of the connection between the buckle and the lower embedded guide rail;
the reference numbers in the figures illustrate:
1. the shock insulation support comprises an upper buttress, a lower buttress, a shock insulation support 3, an upper embedded guide rail 4, a piston cylinder 5, a lower embedded guide rail 6, a ball joint 7, a connecting bolt 8, a buckle 9, a polytetrafluoroethylene coating 10, a positioning protrusion 11, a positioning groove 12, a piston rod 51, a clamping plate 52 and a cylinder 53.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
The utility model provides a two-way gliding piston rod formula shock insulation tensile means, as figure 1, figure 2, figure 3 and figure 4, including last buttress 1, isolation bearing 3, lower buttress 2, go up pre-buried guide rail 4, pre-buried guide rail 6 and a plurality of piston barrel 5 down, go up buttress 1, isolation bearing 3 and lower buttress 2 connect gradually, it is concrete buttress to go up buttress 1 and lower buttress 2, it is partly pre-buried in the concrete of last buttress 1 and lower buttress 2 respectively to go up pre-buried guide rail 4 and pre-buried guide rail 6 down, and go up pre-buried guide rail 4 and pre-buried guide rail 6's direction mutually perpendicular that sets up down, piston barrel 5 both ends are fixed with ball-type and connect 7, ball-type connects 7 and is connected with last pre-buried guide rail 4 and pre-buried guide rail 6 down through buckle 9.
Go up pre-buried guide rail 4 and the quantity of pre-buried guide rail 6 down and be 2, 2 last pre-buried guide rail 4 parallel arrangement just are located 3 both sides of shock insulation support on last buttress 1, 2 pre-buried guide rail 6 parallel arrangement just are located 3 both sides of shock insulation support under on buttress 2, and the quantity of piston barrel 5 is 4, and 4 piston barrels 5 are the four corners and distribute.
Like fig. 6, go up all to be equipped with on pre-buried guide 4 and the pre-buried guide 6 down that the cross section is trapezoidal location arch 11, intensity is high, and stability is good, is equipped with the positioning groove 12 the same with the protruding 11 shapes in location on the buckle 9, and positioning groove 12 is inserted to protruding 11 in location, realizes buckle 9's location, simultaneously through connecting bolt 8 with buckle 9 through with last pre-buried guide 4 and pre-buried guide 6 are fixed down, buckle 9's material is the steel.
The top surface of the positioning bulge 11 and the bottom surface of the positioning groove 12 are both provided with fixing grooves with semicircular sections to form a cavity for clamping the ball joint 7, so that the ball joint 7 can slide in the cavity with the circular section, and the inner wall of the cavity is coated with a polytetrafluoroethylene coating 10 for lubrication, thereby improving the wear resistance.
As shown in fig. 5, the piston cylinder 5 includes a piston rod 51 and a cylinder 53 connected to the upper pre-buried guide 4 and the lower pre-buried guide 6, respectively, a clamping plate 52 is horizontally disposed in the cylinder 53, an inverted hook is disposed at one end of the piston rod 51 and penetrates through the clamping plate 52, so that the transmission of the tensile force between the piston rod 51 and the cylinder 53 is realized, and the tensile bearing capacity of the whole device can be easily adjusted by adjusting the size and the material of the cross section of the piston rod 51 and the cylinder 53.
During installation, the upper buttress 1 is firstly arranged, the shock insulation support 3 and the lower buttress 2 are arranged, the upper embedded guide rail 4 and the lower embedded guide rail 6 which are partially embedded in concrete are respectively arranged on the surfaces of the upper buttress 1 and the lower buttress 2, the buckle is firstly sleeved on the ball joint 7 at one end of the piston cylinder 5, then the positioning groove 12 on the buckle is matched and connected with the embedded guide rail 4 and the positioning protrusion 11 on the embedded guide rail 6, the positioning is realized, the buckle 9 is fixed with the upper embedded guide rail 4 and the lower embedded guide rail 6 through the connecting bolt 8, the ball joint 7 is limited in a cavity with a circular cross section, and the installation is completed.
This embodiment has provided a two-way gliding piston rod formula shock insulation tensile device, and piston rod formula tensile atress mode is simple direct, and calculation model and actual atress model conformity degree are high, are favorable to accurate analysis piston cylinder 5's atress and to the influence of shock insulation support 3 atress, and the device is applicable to including and not being limited to different grade type shock insulation support 3 including rubber shock insulation support, elastic sliding plate support, friction pendulum support, and the suitability is strong.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. The utility model provides a two-way gliding piston rod formula shock insulation tensile means, is including last buttress (1), isolation bearing (3) and lower buttress (2) that connect gradually, its characterized in that still includes pre-buried guide rail (4), pre-buried guide rail (6) and a plurality of piston barrel (5) down, last pre-buried guide rail (4) and pre-buried guide rail (6) down correspond respectively and set up on last buttress (1) and lower buttress (2) and mutually perpendicular, piston barrel (5) both ends respectively swing joint on last pre-buried guide rail (4), lower pre-buried guide rail (6).
2. The piston rod type seismic isolation tensile device capable of sliding in two directions as claimed in claim 1, wherein the number of the upper embedded guide rails (4) and the lower embedded guide rails (6) is 2, the 2 upper embedded guide rails (4) are arranged on the upper buttress (1) in parallel and located on two sides of the seismic isolation support (3), and the 2 lower embedded guide rails (6) are arranged on the lower buttress (2) in parallel and located on two sides of the seismic isolation support (3).
3. The bi-directional sliding piston rod type shock-insulation tensile device as claimed in claim 1, wherein the number of the piston cylinders (5) is 4, and the 4 piston cylinders (5) are distributed in four corners.
4. The bidirectional sliding piston rod type shock-insulation tensile device as claimed in claim 1, wherein ball joints (7) are fixed at two ends of the piston cylinder (5), and the ball joints (7) are connected with the upper embedded guide rail (4) and the lower embedded guide rail (6) through buckles (9).
5. The piston rod type shock-insulation tensile device capable of sliding in two directions as claimed in claim 4, wherein the upper embedded guide rail (4) and the lower embedded guide rail (6) are both provided with positioning protrusions (11), the buckle (9) is provided with positioning grooves (12) which are the same as the positioning protrusions (11), and the positioning protrusions (11) are inserted into the positioning grooves (12).
6. A bi-directional sliding piston rod type shock-isolating tensile device as claimed in claim 5, wherein the cross section of the positioning protrusion (11) is trapezoidal.
7. The piston rod type shock-insulation tensile device capable of sliding in two directions as claimed in claim 5, wherein the top surface of the positioning protrusion (11) and the bottom surface of the positioning groove (12) are both provided with fixing grooves with semicircular sections to form a cavity for clamping the ball-shaped joint (7).
8. The piston rod type shock-insulation tensile device capable of sliding in two directions as claimed in claim 4, wherein polytetrafluoroethylene coatings (10) are coated on contact surfaces of the ball joint (7), the buckle (9), the upper embedded guide rail (4) and the lower embedded guide rail (6).
9. The piston rod type shock-insulation tensile device capable of sliding in two directions as claimed in claim 4, wherein the buckle (9) is fixed with the upper embedded guide rail (4) and the lower embedded guide rail (6) through connecting bolts (8).
10. The bidirectional sliding piston rod type shock-insulation tensile device is characterized in that the piston cylinder (5) comprises a piston rod (51) and a cylinder (53) which are respectively connected with an upper embedded guide rail (4) and a lower embedded guide rail (6), a clamping plate (52) is horizontally arranged in the cylinder (53), and one end of the piston rod (51) is provided with an inverted hook and penetrates through the clamping plate (52).
CN202010363128.XA 2020-04-30 2020-04-30 Bidirectional sliding piston rod type shock insulation tensile device Pending CN111519781A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010363128.XA CN111519781A (en) 2020-04-30 2020-04-30 Bidirectional sliding piston rod type shock insulation tensile device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010363128.XA CN111519781A (en) 2020-04-30 2020-04-30 Bidirectional sliding piston rod type shock insulation tensile device

Publications (1)

Publication Number Publication Date
CN111519781A true CN111519781A (en) 2020-08-11

Family

ID=71912295

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010363128.XA Pending CN111519781A (en) 2020-04-30 2020-04-30 Bidirectional sliding piston rod type shock insulation tensile device

Country Status (1)

Country Link
CN (1) CN111519781A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113006286A (en) * 2021-03-12 2021-06-22 中建三局集团有限公司 Tensile anti-torsion shock insulation support
CN113431203A (en) * 2021-07-16 2021-09-24 清华大学 Semi-active damper type anti-pulling shock isolation device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10280729A (en) * 1997-03-31 1998-10-20 Toyo Constr Co Ltd Base isolation structure
CN2435565Y (en) * 2000-05-27 2001-06-20 张文芳 Totally-enclosed friction damping support
CN106013489A (en) * 2016-06-04 2016-10-12 上海大学 Additional damping multidirectional negative stiffness device
CN106545212A (en) * 2016-12-07 2017-03-29 北京工业大学 A kind of straight guide type tension and spacing earthquake isolating equipment
CN206143944U (en) * 2016-09-06 2017-05-03 昆明理工大学 Universal rotation shock insulation layer tensile and horizontal spacing device
CN207277595U (en) * 2017-09-19 2018-04-27 中国电建集团昆明勘测设计研究院有限公司 Dual slidingtype tensile shock isolation device
CN212295144U (en) * 2020-04-30 2021-01-05 同济大学建筑设计研究院(集团)有限公司 Bidirectional sliding piston rod type shock insulation tensile device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10280729A (en) * 1997-03-31 1998-10-20 Toyo Constr Co Ltd Base isolation structure
CN2435565Y (en) * 2000-05-27 2001-06-20 张文芳 Totally-enclosed friction damping support
CN106013489A (en) * 2016-06-04 2016-10-12 上海大学 Additional damping multidirectional negative stiffness device
CN206143944U (en) * 2016-09-06 2017-05-03 昆明理工大学 Universal rotation shock insulation layer tensile and horizontal spacing device
CN106545212A (en) * 2016-12-07 2017-03-29 北京工业大学 A kind of straight guide type tension and spacing earthquake isolating equipment
CN207277595U (en) * 2017-09-19 2018-04-27 中国电建集团昆明勘测设计研究院有限公司 Dual slidingtype tensile shock isolation device
CN212295144U (en) * 2020-04-30 2021-01-05 同济大学建筑设计研究院(集团)有限公司 Bidirectional sliding piston rod type shock insulation tensile device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113006286A (en) * 2021-03-12 2021-06-22 中建三局集团有限公司 Tensile anti-torsion shock insulation support
CN113431203A (en) * 2021-07-16 2021-09-24 清华大学 Semi-active damper type anti-pulling shock isolation device

Similar Documents

Publication Publication Date Title
CN107142841B (en) Shock attenuation is drawn and is pressed ball-type support with prevent falling roof beam function
CN212295144U (en) Bidirectional sliding piston rod type shock insulation tensile device
CN111519781A (en) Bidirectional sliding piston rod type shock insulation tensile device
CN107724230B (en) Straddle type track beam support with ultrahigh line function
CN103938748B (en) A kind of yi word pattern energy consumption inner core curvature-prevention support component with two yield point
CN112049028B (en) Damping and anti-overturning single-column pier bridge reinforcing device and installation method
CN210507846U (en) Building deformation joint device and structure
CN103452041A (en) Large-displacement-amount modular pattern bridge expansion device of safe deposit box system
CN105840725B (en) Screw vibration-damping vibration isolator
CN202064272U (en) Bridge damping extensible device
CN206593956U (en) The axially loaded supplementary structure of pseudo-static experimental
CN209129244U (en) A kind of adjustable connection structure of light gage steel joist
CN107217593A (en) A kind of main push-towing rope for the main saddle of suspension bridge is layered anti-skid construction
CN101718077B (en) Bridge girder anti-seismic bearing
CN207512592U (en) A kind of mode tensile supporting seat for straddle type monorail rail tracks
CN208235319U (en) Rubber expansion joint device for bridge
CN213897734U (en) Assembled concrete bidirectional ribbed floor
CN208055862U (en) A kind of tension friction pendulum support
CN211285229U (en) Full-prefabricated assembled track structure on steel truss girder
CN208545623U (en) Horizontal connection assembly type shear hinge
CN207314132U (en) A kind of anchor and height-adjustable supports
CN111173168A (en) Vertical splicing structure of steel plate concrete shear wall for super high-rise building
CN215629961U (en) Guarantee straightness's supplementary installation device that hangs down of pile foundation
CN203514187U (en) Safe box system large-displacement modular bridge expansion and contraction device
CN220888292U (en) Bridge anti-seismic drawing device

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