CN115405008B - Swing and sliding composite support in integrated structure - Google Patents
Swing and sliding composite support in integrated structure Download PDFInfo
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- CN115405008B CN115405008B CN202211127754.4A CN202211127754A CN115405008B CN 115405008 B CN115405008 B CN 115405008B CN 202211127754 A CN202211127754 A CN 202211127754A CN 115405008 B CN115405008 B CN 115405008B
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- 239000002131 composite material Substances 0.000 title claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000013016 damping Methods 0.000 abstract description 13
- 230000009471 action Effects 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 9
- 230000035939 shock Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- 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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- 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
- E04H9/0215—Bearing, supporting or connecting constructions specially adapted for such buildings involving active or passive dynamic mass damping systems
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- 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
- E04H9/023—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising rolling elements, e.g. balls, pins
-
- 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
- E04H9/0237—Structural braces with damping devices
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to a swinging and sliding composite support in an integrated structure, which comprises an upper support disc, a lower support disc and a middle swinging body, and is characterized in that: the middle swinging body consists of an upper supporting body and a lower supporting body, a cylindrical upright post is arranged in the center of the lower surface of the upper supporting body, a cylindrical groove is formed in the center of the upper surface of the lower supporting body, the depth of the cylindrical groove is equal to the height of the cylindrical upright post on the lower surface of the upper supporting body, and the diameter of the cylindrical groove is larger than that of the cylindrical upright post; the upper support disc and the lower support disc are connected by four sets of symmetrically arranged link mechanisms, and the upper support disc can swing in any direction relative to the lower support disc. The advantages are that: the invention relieves the action force from horizontal and inclined earthquakes through the combined action of swing and sliding, can avoid the generation of longitudinal earthquake action force, fundamentally prevents the damage of the longitudinal action force and has obvious damping effect.
Description
Technical Field
The invention relates to a swing and sliding composite support in an integrated structure, and belongs to the technical field of building shockproof and earthquake-resistant devices.
Background
The isolation and shock absorption technology is a new method of shock resistance commonly accepted by the building industry and the earthquake departments, has a very obvious effect on resisting earthquake damage (theoretical analysis shows that the earthquake damage can be reduced by a intensity level), and has early exploration practice activities developed in the foreign aspect and has many successful experiences. The future application of shock-absorbing and shock-insulating technology is a necessary trend of the building industry and bridge structures.
The structure principle of the shock-absorbing and shock-insulating products is divided into two types, namely: pendulum damping structure, friction sliding structure. No matter what kind of products are widely used, because of limitations to a certain extent, special requirements of all-round shock absorption are not met, and particularly functions of relieving longitudinal earthquake acting force are weaker, and cost is low.
The design concept of the friction pendulum support is proposed by Americans in the late eighties of the last century, and the basic structure of the pendulum support formed according to the concept is to clamp a football-shaped pendulum body in two upper and lower concave curved surfaces (see figure 1). The structure has good damping effect; the advantages of obvious post-earthquake reset function and the like are concerned by industry persons, but the three-structure body separation state of the three-structure body has another defect, so that effective defense measures are difficult to build for the damage of longitudinal acting force, and various solutions are sought by professionals in various countries.
Disclosure of Invention
The invention aims to provide the swinging and sliding composite support in an integrated structure, which adopts two-stage damping measures, can relieve the action of horizontal and inclined earthquake acting forces through the combined action of swinging and sliding, can avoid the damage of longitudinal earthquake acting forces, and has obvious damping effect.
The object of the invention is achieved in the following way:
the invention comprises an upper supporting disc, a lower supporting disc and a middle swinging body, and is characterized in that: the middle swinging body consists of an upper supporting body and a lower supporting body, the upper supporting disk is a disk shape with a plane upper surface, a concave arc surface or a convex arc surface lower surface, the lower supporting disk is a disk shape with a plane upper surface, a concave arc surface lower surface, a convex arc surface or a concave arc surface which can be matched with the lower surface of the upper supporting disk, the lower surface is a plane with a circular outer contour, a cylindrical upright post is arranged at the center of the lower surface of the upper supporting body, the upper surface of the lower supporting body is a plane with a circular outer contour, the lower surface of the lower supporting body is a convex arc surface which can be matched with the upper surface of the lower supporting disk, a cylindrical groove is formed at the center of the upper surface of the lower supporting body, the depth of the cylindrical groove is equal to the height of the cylindrical upright post of the lower surface of the upper supporting body, and the diameter of the cylindrical groove is larger than the diameter of the cylindrical upright post; the upper support disc and the lower support disc are connected by four sets of symmetrically arranged link mechanisms, and the upper support disc can swing in any direction relative to the lower support disc.
The upper support body of the middle swinging body is arranged on the lower support body, the cylindrical upright post of the upper support body is inserted into the cylindrical groove of the lower support body, and the lower surface of the upper support body is attached to the upper surface of the lower support body.
The middle swinging body is arranged on the lower supporting disc, and the lower surface of the lower supporting body of the middle swinging body is attached to the upper surface of the lower supporting disc; the upper supporting disk is arranged on the middle swinging body, and the lower surface of the upper supporting disk is attached to the upper surface of the upper supporting body of the middle swinging body.
Four hinge connecting seats are equally arranged on the circumference of the outer ring of the upper supporting disc, four connecting lugs with horizontal arc-shaped sliding grooves are correspondingly arranged on the circumference of the outer ring of the lower supporting disc, and a set of connecting rod mechanism is connected between each hinge connecting seat and the corresponding connecting lug.
The connecting rod mechanism comprises a cross rod and a longitudinal rod, one end of the cross rod is connected with a hinge connecting piece, and the hinge connecting piece is hinged with the hinge connecting seat by a longitudinal shaft; the transverse rod is sleeved with a sleeve connecting piece, the upper end of the longitudinal rod is connected with a universal joint, the upper end of the universal joint is connected with the lower end of the sleeve connecting piece through a transverse shaft hinge, the longitudinal rod body is penetrated into an arc-shaped chute of the connecting lug, the universal joint is positioned above the connecting lug, the universal joint above the connecting lug is sleeved with a spring, the longitudinal rod body below the connecting lug is sleeved with a spring, and the lower end of the longitudinal rod is fastened through a nut.
A supporting rod is arranged at the lower part of the connecting lug.
The invention has the advantages that:
(1) The important requirement of the support integration is met, and the structural feature avoids the worry that longitudinal acting force can be generated in a polar shock area and a near shock area;
(2) The connecting rod mechanism adopts a flexible connection mode and a separation structure presented by the middle swinging body, so that the two damping functions of sliding and swinging can be combined into a whole for comprehensive application, the variable characteristic of the seismic wave in the whole wave fluctuation process is better adapted, and meanwhile, the special requirements of small initial damping and large damping of the support in the process are also realized;
and 3, the cambered surface structure between the upper supporting disc and the lower supporting disc of the support corresponds to the cambered surface structure of the middle swinging body, so that the support can still return to the original position after swinging reciprocally, and the post-earthquake resetting function which the ideal support must possess is provided.
In a word, the invention relieves the earthquake acting force from horizontal and inclined by the combined action of swing and sliding, can avoid the generation of longitudinal earthquake acting force, fundamentally prevents the damage of the longitudinal acting force and has obvious damping effect.
Drawings
FIG. 1 is a schematic view of a prior art friction pendulum mount;
FIG. 2 is a schematic view of the structure of the convex arc surface on the lower surface of the upper supporting plate;
FIG. 3 is a schematic view of the structure of the concave arc surface on the lower surface of the upper supporting plate;
FIG. 4 is a top view of FIG. 2;
FIG. 5 is a graph showing hysteresis detected by the shock absorbing performance test of the present invention.
In the figure: the novel vertical support comprises a 1-upper support disc, a 2-upper support body, a 3-lower support body, a 4-cylindrical groove, a 5-cylindrical upright post, a 6-lower support disc, a 7-longitudinal rod, an 8-nut, a 9-longitudinal rod spring, a 10-connecting lug, an 11-spring, a 12-universal joint, a 13-sleeve connecting piece, a 14-transverse rod, a 15-hinge connecting piece, a 16-hinge connecting seat, a 17-support rod and an 18-horizontal arc chute.
Detailed Description
Example 1:
referring to fig. 2 and 4, the invention comprises an upper supporting disk 1, a lower supporting disk 6 and a middle swinging body, wherein the middle swinging body consists of an upper supporting disk 2 and a lower supporting disk 3, the upper supporting disk is a circular disk with a plane upper surface and a convex circular arc surface lower surface, the lower supporting disk is a circular disk with a concave circular arc surface upper surface and a plane lower surface, the upper surface of the upper supporting body of the middle swinging body is a concave circular arc surface which can be matched with the lower surface of the upper supporting disk, the lower surface of the upper supporting body is a plane with a circular outline, a cylindrical column 5 is arranged in the center of the lower surface of the upper supporting body, the upper surface of the lower supporting body is a plane with a circular outline, the lower surface of the lower supporting body is a convex circular arc surface which can be matched with the upper surface of the lower supporting disk, a cylindrical groove 4 is formed in the center of the upper surface of the lower supporting body, and the depth of the cylindrical groove is equal to the height of the cylindrical column on the lower surface of the upper supporting body, and the diameter of the cylindrical groove is larger than the diameter of the cylindrical column; the upper support body of the middle swinging body is arranged on the lower support body, the cylindrical upright post of the upper support body is inserted into the cylindrical groove of the lower support body, and the lower surface of the upper support body is attached to the upper surface of the lower support body. The middle swinging body is arranged on the lower supporting disc, and the lower surface of the lower supporting body of the middle swinging body is attached to the upper surface of the lower supporting disc; the upper supporting disk is arranged on the middle swinging body, and the lower surface of the upper supporting disk is attached to the upper surface of the upper supporting body of the middle swinging body.
The upper support disc and the lower support disc are connected by four sets of symmetrically arranged link mechanisms, and the upper support disc can swing in any direction relative to the lower support disc. Specifically: four hinge connecting seats 15 are equally arranged on the circumference of the outer ring of the upper supporting disk, four connecting lugs 10 with horizontal arc-shaped sliding grooves 18 are correspondingly arranged on the circumference of the outer ring of the lower supporting disk, and a set of connecting rod mechanism is connected between each hinge connecting seat and the corresponding connecting lug. The connecting rod mechanism comprises a cross rod 14 and a longitudinal rod 7, one end of the cross rod is fixedly connected with a hinge connecting piece 15, and the hinge connecting piece is hinged with the hinge connecting seat by a longitudinal shaft; the upper end of the longitudinal rod is connected with a universal joint 12, the upper end of the universal joint is hinged with the lower end of the sleeve connecting piece by a transverse shaft, the longitudinal rod body is penetrated in an arc-shaped chute 18 of the connecting lug, a spring is sleeved on the universal joint above the connecting lug, a spring 11 is sleeved on the longitudinal rod body below the connecting lug, a longitudinal rod spring 9 is sleeved on the longitudinal rod body below the connecting lug, the lower end of the longitudinal rod is fastened by a nut 8, a supporting rod 17 is arranged at the lower part of the connecting lug, and the lower end of the supporting rod can be supported on a platform for arranging a lower supporting disc so as to ensure the stability of the connecting lug.
Example 2: referring to fig. 3, the invention comprises an upper support disc 1, a lower support disc 6 and a middle swinging body, wherein the middle swinging body consists of an upper support body 2 and a lower support body 3, the upper support disc is a disc shape with a plane upper surface and a concave circular arc surface lower surface, the lower support disc is a disc shape with a concave circular arc surface upper surface and a plane lower surface, the upper surface of the upper support body of the middle swinging body is a convex circular arc surface which can be matched with the lower surface of the upper support disc, and the lower surface of the upper support body is a plane with a circular outline; the rest of the structure is the same as in example 1.
The damping principle of the invention:
the four-set link mechanism of the invention has an integrated function and tensile and poking capabilities, and the link mechanism is a set of vertical frames which are connected by a transverse structure and a longitudinal structure through a sleeve. The connection of the connecting rod mechanism and the upper and lower supporting disks adopts two modes of fixed connection and movable connection respectively, namely the connection of the connecting rod mechanism and the upper supporting disk adopts fixed connection; the lower support plate is movably connected with the lower support plate. The upper end is connected with a transverse rotating rod capable of freely rotating at 180 degrees; four connecting lugs with lower ends extending from the lower support disc are connected with vertical longitudinal rods inserted into the connecting lugs. In order to ensure 360 ° free guiding of the longitudinal bar, the longitudinal bar is connected to a universal joint 12. In order to ensure the upright of the longitudinal rod, a spring 11 with a stabilizing effect is sleeved outside the longitudinal rod, meanwhile, in order to ensure the connecting rod mechanism to have stronger tensile and pulling capacities, the lower end of the connecting lug is sleeved with a longitudinal rod spring 9 with higher hardness, and in practical application, the inclination angle of the upper supporting disc is determined by the compression amount of the spring 11.
The characteristics of the seismic wave are that the impact is intermittently acted in a fluctuation state, but not continuous and continuous action, and the inertia effect is obvious. According to the characteristics, the support is designed into a structure as shown in figures 2, 3 and 4 so as to enable the movement mode of the support to be consistent with the earthquake fluctuation mode as much as possible, and the purpose of shock absorption can be effectively achieved only by avoiding hard contact between the support and the earthquake fluctuation mode and avoiding passive receiving of earthquake energy of a building to the maximum extent.
When the earthquake wave comes, the inclination angle is different with the magnitude of the earthquake medium distance, because the contact resistance between the middle swinging body and the two cambered surfaces between the upper supporting disk and the lower supporting disk is larger, and the abutting surfaces of the upper supporting disk and the lower supporting disk of the middle swinging body are in plane contact, the damping is smaller, so the earthquake wave drives the lower supporting disk and the lower supporting disk of the middle swinging body to slide along the plane at first. When the cylindrical upright post of the upper support body is in quick contact with the edge of the cylindrical groove of the lower support body, the distance between the upper support plate and the lower support plate of the support is in a non-parallel shape with one end being large and the other end being small, meanwhile, the earthquake acting force received by the support is converged at the other end of the middle swinging body, the component force acting upwards and horizontally can be decomposed at the position, the horizontal component force is decomposed due to the sliding action, only the component force upwards rotates leftwards under the action of the component force, the lower support body has a certain displacement, and when the upper support body is separated from the arc center position of the upper surface of the lower support plate, the lower surface of the lower support body and the arc surface of the upper surface of the lower support plate certainly form reverse sliding swing due to the action of gravity, and the swinging result is that the arc surface of the lower surface of the upper support plate and the arc surface of the upper support body are linked to swing. Therefore, the effect of sliding and driving double swinging is formed, the sliding, swinging, gravity and earthquake acting force are synchronously carried out in the whole linkage process, the combined action of the sliding, swinging and gravity and the earthquake acting force is mutually influenced in the transient, and the earthquake acting force is not independently acted, so that the situation of direct contact between the earthquake acting force and the upper supporting disc is not formed, and the earthquake wave energy is effectively resolved.
Experimental verification of the damping performance of the present invention:
referring to fig. 5, fig. 5 is a graph showing the hysteresis detected in the case of performing displacement of plus or minus 10cm under 100 tons of pressure for the intermediate pendulum in the structure of the present invention, and the experiment shows that the intermediate pendulum structure of the present invention has a relatively ideal damping effect.
Claims (4)
1. The utility model provides a compound support of swing, sliding in integrated structure, includes supporting disk, lower supporting disk, middle pendulum body, characterized by: the middle swinging body consists of an upper supporting body and a lower supporting body, the upper supporting disk is a disk shape with a plane upper surface, a concave arc surface or a convex arc surface lower surface, the lower supporting disk is a disk shape with a plane upper surface, a concave arc surface lower surface, a convex arc surface or a concave arc surface which can be matched with the lower surface of the upper supporting disk, the lower surface is a plane with a circular outer contour, a cylindrical upright post is arranged at the center of the lower surface of the upper supporting body, the upper surface of the lower supporting body is a plane with a circular outer contour, the lower surface of the lower supporting body is a convex arc surface which can be matched with the upper surface of the lower supporting disk, a cylindrical groove is formed at the center of the upper surface of the lower supporting body, the depth of the cylindrical groove is equal to the height of the cylindrical upright post of the lower surface of the upper supporting body, and the diameter of the cylindrical groove is larger than the diameter of the cylindrical upright post; the upper support disc and the lower support disc are connected by four sets of symmetrically arranged link mechanisms, and the upper support disc can swing in any direction relative to the lower support disc; four hinge connecting seats are equally arranged on the circumference of the outer ring of the upper supporting disc, four connecting lugs with horizontal arc-shaped sliding grooves are correspondingly arranged on the circumference of the outer ring of the lower supporting disc, and a set of connecting rod mechanism is connected between each hinge connecting seat and the corresponding connecting lug; the connecting rod mechanism comprises a cross rod and a longitudinal rod, one end of the cross rod is connected with a hinge connecting piece, and the hinge connecting piece is hinged with the hinge connecting seat by a longitudinal shaft; the transverse rod is sleeved with a sleeve connecting piece, the upper end of the longitudinal rod is connected with a universal joint, the upper end of the universal joint is connected with the lower end of the sleeve connecting piece through a transverse shaft hinge, the longitudinal rod body is penetrated into an arc-shaped chute of the connecting lug, the universal joint is positioned above the connecting lug, the universal joint above the connecting lug is sleeved with a spring, the longitudinal rod body below the connecting lug is sleeved with a spring, and the lower end of the longitudinal rod is fastened through a nut.
2. The rocking and sliding composite support in an integrated structure of claim 1, wherein: the upper support body of the middle swinging body is arranged on the lower support body, the cylindrical upright post of the upper support body is inserted into the cylindrical groove of the lower support body, and the lower surface of the upper support body is attached to the upper surface of the lower support body.
3. The rocking and sliding composite support in an integrated structure of claim 1, wherein: the middle swinging body is arranged on the lower supporting disc, and the lower surface of the lower supporting body of the middle swinging body is attached to the upper surface of the lower supporting disc; the upper supporting disk is arranged on the middle swinging body, and the lower surface of the upper supporting disk is attached to the upper surface of the upper supporting body of the middle swinging body.
4. The rocking and sliding composite support in an integrated structure of claim 1, wherein: a supporting rod is arranged at the lower part of the connecting lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211127754.4A CN115405008B (en) | 2022-09-16 | 2022-09-16 | Swing and sliding composite support in integrated structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211127754.4A CN115405008B (en) | 2022-09-16 | 2022-09-16 | Swing and sliding composite support in integrated structure |
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| Publication Number | Publication Date |
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| CN115405008A CN115405008A (en) | 2022-11-29 |
| CN115405008B true CN115405008B (en) | 2024-02-13 |
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