CN115162511A - High-efficient viscous energy dissipation prestressing force frame - Google Patents
High-efficient viscous energy dissipation prestressing force frame Download PDFInfo
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- CN115162511A CN115162511A CN202210905496.1A CN202210905496A CN115162511A CN 115162511 A CN115162511 A CN 115162511A CN 202210905496 A CN202210905496 A CN 202210905496A CN 115162511 A CN115162511 A CN 115162511A
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/22—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material with parts being prestressed
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
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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
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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
- E04H9/0235—Anti-seismic devices with hydraulic or pneumatic damping
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Abstract
The invention discloses a high-efficiency viscous energy dissipation prestressed frame, wherein two groups of frame columns are vertically and parallelly arranged; the prefabricated upper frame beam and the prefabricated lower frame beam are arranged between the two groups of frame columns in an up-down parallel manner; the prestressed tendons are respectively arranged in the prefabricated upper frame beam and the prefabricated lower frame beam, two ends of each prestressed tendon respectively penetrate out of the corresponding frame columns, and the two groups of frame columns are tightly pressed at two ends of the prefabricated upper frame beam and the prefabricated lower frame beam; the lower wall plate and the viscous energy dissipater are arranged on the top surface of the prefabricated lower frame beam; the top end of the rigid lever is hinged with the center of the bottom of the prefabricated upper frame beam through an upper pin shaft, the middle part of the rigid lever is hinged with the middle upper part of the lower wall plate through a middle pin shaft, the bottom of the rigid lever is hinged with the output end of the viscous energy dissipater through a connecting rod, the displacement amplification factor of the viscous energy dissipater can be flexibly adjusted by changing the position relation of the upper pin shaft, the middle pin shaft and the connecting rod, and the size of viscous damping force can be adjusted by increasing or decreasing the number of the viscous energy dissipater.
Description
Technical Field
The invention relates to the field of building industrialization of civil engineering, in particular to a high-efficiency viscous energy dissipation prestressed frame.
Background
The prefabricated assembly technology can reduce pollution and emission in the construction process, is a key ring for realizing the aim of 'double carbon', and is an important direction for the industrialized development of buildings in China. Among various assembly methods, the prestress technology can improve the assembly efficiency of the structure, can also fully utilize the prestressed tendons to improve the post-earthquake recovery performance of the structure, and has higher competitive advantage. In order to solve the problem of poor energy dissipation capability of a prestress assembly type frame structure, an energy dissipation and shock absorption device is additionally arranged at the end of a precast beam at the present stage. The energy consumption pieces arranged on the nodes obviously increase the design complexity of beam-column connection, the connection space of the energy consumption pieces is small, and the requirements on the precision of processing and site construction can be increased. The energy dissipation and shock absorption technology is characterized in that an energy dissipation device is additionally arranged in a building structure, so that the purposes of dissipating external energy and reducing the dynamic response of a main structure are achieved, meanwhile, the damage of the structure can be effectively reduced, and how to reasonably combine the energy dissipation and shock absorption device with an assembled structure is a problem to be further considered.
Viscous damping energy consumption belongs to a speed-related energy consumption mode, the viscous damping energy consumption is stable, larger additional damping can be provided for a mounting structure, the viscous damping energy consumption mode is convenient to replace and mount during normal service, and meanwhile, the problems of yielding and fatigue of materials cannot be caused, so that the viscous damping energy consumption mode is considered as an effective passive energy consumption mode. The working stroke of the traditional viscous damping energy dissipation device is the same as the displacement of the connecting point, and the energy dissipation effect cannot be fully exerted under the action of wind load and medium and small earthquakes. Therefore, the viscous damping energy dissipation fabricated frame structure which has high-efficiency energy dissipation capacity and simple structure and assembly under the action of wind load and medium and small earthquakes has wider engineering application prospect.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a high-efficiency viscous energy dissipation prestressed frame aiming at the defects of the prior art, and the high-efficiency viscous energy dissipation prestressed frame has the characteristics of high-efficiency energy dissipation capability, simple structure and assembly and the like under the action of wind load and medium and small earthquakes.
In order to solve the technical problems, the invention adopts the technical scheme that:
a high-efficiency viscous energy dissipation prestressed frame comprises a prestressed frame body, a lower wall plate and a viscous energy dissipation assembly.
The prestressed frame body comprises a prefabricated upper frame beam, a prefabricated lower frame beam, frame columns and prestressed tendons.
The frame columns are provided with two groups which are vertically arranged in parallel.
The prefabricated upper frame beam and the prefabricated lower frame beam are arranged between the two groups of frame columns in an up-down parallel mode.
The prestressed tendons are respectively arranged in the prefabricated upper frame beam and the prefabricated lower frame beam, and two ends of each prestressed tendon respectively penetrate out of the corresponding frame columns, so that the two groups of frame columns are pressed at two ends of the prefabricated upper frame beam and two ends of the prefabricated lower frame beam.
The lower wallboard fixed connection is at the top surface of prefabricated lower frame roof beam.
The viscous energy dissipater assembly comprises a rigid lever and a viscous energy dissipater.
The viscous energy dissipater is arranged on the top surface of the prefabricated lower frame beam.
The top end of the rigid lever is hinged with the bottom center of the prefabricated upper frame beam, and the hinged point is a point
。
The middle part of the rigid lever is hinged with the middle upper part of the lower wallboard, and the hinged point is a point
。
The bottom of the rigid lever is hinged with the output end of the viscous energy dissipater, and the hinged point is a point B.
Is provided with
And point
The midpoint of the connecting line is point O, point O and
and
are all distances of
(ii) a The distance between the point O and the point B is
。
When the prefabricated upper frame beam and the prefabricated lower frame beam are horizontally dislocated, each point on the rigid lever rotates at the same angular speed omega relative to the point O; by adjusting
Length value of (1), lower wallboard relative pointOIs displaced by
At this time, point B will rotate to point
And is made of
Point to pointOHas an amplifying effect.
When in use
When the temperature of the water is higher than the set temperature,
point to pointOWill amplify
And (4) doubling.
The prefabricated lower frame beam is a foundation or foundation.
The rigid lever is one, the viscous energy dissipater is provided with one, the viscous energy dissipater is arranged on the top surface of the prefabricated underframe beam on one side of the rigid lever, and the output end of the viscous energy dissipater is hinged with the bottom of the rigid lever.
The number of the rigid levers is one, the number of the viscous energy dissipaters is two, the two viscous energy dissipaters are symmetrically installed on the top surfaces of the prefabricated lower frame beams on two sides of the rigid levers, and the output ends of the two viscous energy dissipaters are hinged to the bottoms of the rigid levers respectively.
The output ends of the two viscous energy dissipaters and the bottom of the rigid lever are provided with one or two hinge points; when a hinge point is arranged, the output ends of the two viscous energy dissipaters are connected in series through a connecting rod, and the middle part of the connecting rod is hinged with the bottom of the rigid lever through the hinge point B; when two hinge points C and D are provided, when the prefabricated upper frame beam and the prefabricated lower frame beam are still and do not horizontally move, the connecting line of the points C and D is parallel to the prefabricated upper frame beam, and the point B is the middle point of the connecting line of the points C and D.
The number of the rigid levers is two, and the number of the viscous energy dissipaters is two; two rigid levers are symmetrically arranged on two sides of the lower wallboard; the two viscous energy dissipaters are symmetrically arranged on the top surfaces of the prefabricated lower frame beams on the two sides of the lower wall plate; the bottom of the rigid lever is hinged with the output end of the viscous energy dissipater on the corresponding side and is provided with the same hinge point B.
The number of the rigid levers is two, and the number of the viscous energy dissipaters is four; two rigid levers are symmetrically arranged on two sides of the lower wallboard; two viscous energy dissipaters are symmetrically arranged on two sides of each rigid lever; the bottom of each rigid lever has one or two hinge points with the two viscous dissipaters on the corresponding side.
The middle part of the rigid lever is hinged with the middle upper part of the lower wallboard through a middle pin shaft; the middle part of the rigid lever hinged with the upper part of the lower wallboard is provided with a waist-shaped hole; the middle pin shaft can slide in the waist-shaped hole.
The lower wallboard is a steel wallboard or a concrete wallboard.
The invention has the following beneficial effects:
(1) According to the efficient viscous energy dissipation prestress assembly type frame provided by the invention, the upper frame beam and the lower wallboard are prefabricated to generate horizontal dislocation displacement
In time, the prefabricated upper frame beam and the lower wallboard are dividedThe pin shaft is not driven to drive the rigid lever to rotate, energy is consumed at the bottom of the rigid lever through the hinged viscous energy dissipater, the fact that the displacement y at the bottom end of the rigid lever is larger than the horizontal dislocation displacement is achieved, and more energy can be consumed through the viscous energy dissipater.
(2) The high-efficiency viscous energy dissipation prestress assembly type frame provided by the invention can flexibly adjust the displacement amplification factor of the rigid lever by changing the position relation of the pin shaft and the connecting rod, namely
The energy dissipation can be increased by increasing or decreasing the number of the viscous energy dissipaters, namely by connecting the viscous energy dissipaters in series.
(3) The high-efficiency viscous energy dissipation prestress assembly type frame provided by the invention has the advantages that the displacement of the connecting point is transmitted and amplified by the pin shaft and the rigid lever respectively, the mechanical property is stable, no precise component is needed, and the requirements on the machining and field assembly precision are lower.
(4) According to the efficient viscous energy dissipation pre-stressed assembled frame provided by the invention, the viscous energy dissipation assembly has efficient and stable energy dissipation capability under the action of wind load, small earthquake, medium earthquake and large earthquake, the energy dissipation capability of the pre-stressed assembled pre-fabricated frame can be effectively supplemented, and the higher performance of the pre-stressed assembled frame is realized.
Drawings
Figure 1 shows a front view of an efficient viscous energy dissipating pre-stressed fabricated frame of example 1 of the present invention.
Figure 2 showsbase:Sub>A cross sectionbase:Sub>A-base:Sub>A ofbase:Sub>A high efficiency viscous energy dissipating pre-stressed fabricated frame of example 1 of the present invention.
Figure 3 shows a front view of an efficient viscous energy dissipating pre-stressed fabricated frame of example 2 of the present invention.
Figure 4 showsbase:Sub>A cross sectionbase:Sub>A-base:Sub>A ofbase:Sub>A high efficiency viscous energy dissipating pre-stressed fabricated frame of example 3 of the present invention.
Figure 5 shows a front view of an efficient viscous energy dissipating pre-stressed fabricated frame of example 5 of the present invention.
Figure 6a shows a first working principle of the rigid lever in the high-efficiency friction energy dissipation prestress fabricated frame.
Figure 6b shows the rotation track of the rigid lever in the high-efficiency viscous energy-dissipating prestress fabricated frame of the invention.
Figure 6c shows the force bearing diagram of the high efficiency viscous energy dissipation pre-stressed assembled frame wall panel of the present invention.
Among them are:
1. prefabricating an upper frame beam; 11. reserving a corrugated hole in the upper frame beam; 12. prefabricating an embedded lug plate at the bottom of the upper frame beam;
2. prefabricating a lower frame beam; 21. reserving a corrugated hole in the lower frame beam; 22. prefabricating an embedded lug plate at the top of the lower frame beam;
3. a frame column; 31. reserving corrugated holes in the frame columns;
4. prestressed tendons;
5. a lower wallboard; 51, circular holes of the lower wall plate;
6. a rigid lever; 61. a circular pin hole; 62. a kidney-shaped hole; 63. a circular hole;
71. an upper pin shaft; 72. a middle pin shaft;
8. a connecting rod;
9. a viscous energy dissipater.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific preferred embodiments.
In the description of the present invention, it should be understood that the terms "left side", "right side", "upper part", "lower part", etc. indicate orientations or positional relationships based on those shown in the drawings, only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, "first", "second", etc. do not represent an important degree of the component, and thus, are not to be construed as limiting the present invention. The specific dimensions used in the present example are only for illustrating the technical solution and do not limit the scope of protection of the present invention.
The present invention will be described in detail by taking the following five preferred embodiments as examples.
Example 1
As shown in fig. 1 and 2, the high-efficiency viscous energy-dissipating prestressed frame comprises a prestressed frame body, a lower wall plate 5 and viscous energy-dissipating components.
The prestressed frame body comprises a prefabricated upper frame beam 1, a prefabricated lower frame beam 2, frame columns 3 and prestressed ribs 4.
The frame columns 3 have two sets, arranged vertically in parallel. The prefabricated upper frame beam 1 and the prefabricated lower frame beam 2 are arranged between the two groups of frame columns 3 in an up-down parallel mode.
The prestressed tendons 4 are respectively arranged in the prefabricated upper frame beam 1 and the prefabricated lower frame beam 2, and two ends of each prestressed tendon 4 respectively penetrate out of the corresponding frame columns 3, so that the two groups of frame columns 3 are tightly pressed at two ends of the prefabricated upper frame beam 1 and the two ends of the prefabricated lower frame beam 2; preferably, an upper frame beam reserved corrugated hole 11 penetrates through the prefabricated upper frame beam 1, a lower frame beam reserved corrugated hole 21 penetrates through the prefabricated lower frame beam 2, a frame column reserved corrugated hole 31 penetrates through the frame column 3, and the prestressed tendon 4 penetrates through the frame column reserved corrugated hole 31 and the upper frame beam reserved corrugated hole 11 or the lower frame Liang Yuliu corrugated hole 21 and then is tensioned.
The prefabricated lower frame beam 2 may be a foundation or a foundation.
The lower wall plate 5 is fixedly connected to the top surface of the prefabricated lower frame beam 2.
The viscous energy dissipater assembly comprises rigid levers 6 and viscous energy dissipaters 9.
The top end of the rigid lever 6 is hinged with the bottom center of the prefabricated upper frame beam 1, and the hinged point is a point
(ii) a Preferably, the prefabricated upper frame beam bottom embedded lug plate 12 is arranged at the bottom center of the prefabricated upper frame beam 1, a circular pin shaft hole 61 is reserved on the prefabricated upper frame beam bottom embedded lug plate 12, a circular pin shaft hole 61 is reserved at the upper part of the rigid lever 6, an upper pin shaft 71 penetrates through the circular pin shaft hole 61 of the prefabricated upper frame beam bottom embedded lug plate 12 and the circular pin shaft hole 61 of the rigid lever 6, and the prefabricated upper frame beam bottom embedded lug plate 12 is hinged to the rigid lever 6.
A round pin shaft hole 61 is reserved at the middle upper part of the lower wall plate 5, and the middle part of the rigid lever 6 and the middle upper part of the lower wall plate 5Hinged with a point at the hinged point
(ii) a The middle part of the rigid lever 6 is preferably hinged with the middle upper part of the lower wall plate 5 through a middle pin shaft 72; the middle part of the rigid lever 6 hinged with the upper part of the lower wall plate 5 is provided with a waist-shaped hole 62; the center pin 72 can slide within the kidney-shaped hole 62.
The viscous energy dissipater 9 is arranged on the top surface of the prefabricated lower frame beam 2; in embodiment 1, the rigid lever 6 is one, the two viscous energy dissipaters 9 are provided, the two viscous energy dissipaters 9 are symmetrically installed on the top surfaces of the prefabricated lower frame beams 2 on the two sides of the rigid lever 6 and located on the same side of the lower wall board 5, and the output ends of the two viscous energy dissipaters 9 are hinged to the bottom of the rigid lever 6 respectively. The number of the connecting rods 8 matched with each viscous energy dissipater 9 is 2, and the connecting rods respectively penetrate through the circular hole 63 of the rigid lever 6, the circular hole 63 at one end of the viscous energy dissipater 9, the circular hole 63 at the other end of the viscous energy dissipater 9 and the circular hole 63 on the embedded lug plate 22 at the top of the prefabricated underframe beam to form hinge joint.
The bottom of the rigid lever 6 is hinged with the output end of the viscous energy dissipater 9, and the hinged point is a point B; the output ends of the two viscous energy dissipaters 9 and the bottom of the rigid lever 6 are provided with one or two hinge points; when a hinge point is arranged, the output ends of the two viscous energy dissipaters 9 are connected in series through the connecting rod 8, and the middle part of the connecting rod 8 is hinged with the bottom of the rigid lever 6 through the hinge point B; when two hinge points C and D are provided, when the prefabricated upper frame beam 1 and the prefabricated lower frame beam 2 are static and do not horizontally move, the connecting line of the points C and D is parallel to the prefabricated upper frame beam 1, and the point B is the middle point of the connecting line of the points C and D.
In this embodiment 1, two circular holes 63 are reserved in the lower portion of the rigid lever 6, and are located on the same horizontal line and symmetrically distributed on two sides of the vertical symmetry axis of the rigid lever 6.
Is provided with
And point
The midpoint of the connecting line is point O, pointO and
and
are all distances of
(ii) a The distance between the point O and the point B is
。
When the prefabricated upper frame beam 1 and the prefabricated lower frame beam 2 horizontally stagger, each point on the rigid lever 6 rotates relative to the point O at the same angular speed omega; by adjusting
The length value of (1), the relative point of lower wall plate 5OIs displaced by
At this time, point B will rotate to point
And is and
point to pointOHas an amplifying effect.
Taking the embodiment 1 as an example, the working principle of the present invention is shown in fig. 6a, 6b and 6 c. In the present embodiment 1, the rigid lever 6 surrounds the instantaneous center when shear deformation occursOAngular velocity of point rotation of
Each point on the rigid lever 6 is opposite to the instant centerOThe tangential speed of point rotation is each point and centerOLength of connecting line and angular velocity
Product of (i.e. each point is perpendicular)In rigid levers (i.e. directions)
) Speed of
And each point and centerOLength of connecting wire
In the following proportional relation:
the relative displacement of the lower wall plate is the relative pointODisplacement of (2)
When the utility model is used, the water is discharged,
when the point B rotates to the point
Dot
Rotate to a point
Time, point O and point
Is a distance of
Point O and point
Is a distance of
，
Of dots
Direction absolute velocity of
，
Is/are as follows
Direction absolute velocity of
，
The absolute velocity of the point in the x direction is
，
Has an absolute velocity in the x direction of
，
the relative displacement of the lower wall plate with respect to the instant center O is
When the utility model is used, the water is discharged,
at this time, the formula (6) is converted into,
thus, it is possible to provide
When in use
When the utility model is used, the water is discharged,
point to pointOThe speed of (a) is amplified.
Point O is the instantaneous center of rotation of the rigid lever (instant center), with a velocity of 0;
of dots
Direction absolute velocity of
，
The absolute velocity of the point in the x direction is
According to the above formula (4), the velocities of the upper wall plate and the lower wall plate in the horizontal x direction relative to the instant center O are both
The two directions are opposite, and the relative speed is 2
. Thus, the number of the first and second electrodes,
point to pointOThe speed magnification of (a) is:
substituting equation (10) into equation (7) and equation (8) may further yield
Point to pointOThe speed magnification of (a) is:
example 2
As shown in fig. 3, this embodiment 2 is substantially the same as embodiment 1 except that in embodiment 2, the rigid lever 6 is preferably arranged on one side of the lower wall panel 5, the viscous energy dissipater 9 has one, a circular hole 63 is reserved at the lower part of the rigid lever 6 and is located on the vertical symmetry axis of the rigid lever 6, the viscous energy dissipater 9 is installed on the top surface of the prefabricated lower frame beam 2 on one side of the rigid lever 6, and the output end of the viscous energy dissipater 9 is hinged with the bottom of the rigid lever 6, and the hinge point is point B.
Example 3
As shown in figure 4, this embodiment 3 is substantially the same as embodiment 2 except that in embodiment 3 there are two rigid levers 6 and two viscous dissipaters 9; two rigid levers 6 are symmetrically arranged on two sides of the lower wallboard 5; two viscous energy dissipaters 9 are symmetrically arranged on the top surfaces of the prefabricated lower frame beams 2 on the two sides of the lower wall plate 5; the bottom of the rigid lever 6 is hinged with the output end of the viscous energy dissipater 9 on the corresponding side and has the same hinge point B.
The upper pin shaft 71 penetrates through the pre-embedded ear plate 12 at the bottom of the prefabricated upper frame beam 1 to reserve a circular hole 63 and circular pin shaft holes 61 at the upper parts of the two rigid levers 6 to form hinge joint. The middle pin shaft 72 penetrates through the vertical kidney-shaped hole 62 of the rigid lever 6 at one side, the circular hole 51 of the lower wall plate and the vertical kidney-shaped hole 62 of the rigid lever 6 at the other side, and the two rigid levers 6 are matched with the lower wall plate 5. The hinged connection of the individual viscous dissipaters 9 to the rigid levers 6 and the viscous dissipaters 9 to the pre-embedded lugs 22 at the top of the prefabricated underframe beam is the same as in example 2.
Example 4
This embodiment 4 is substantially the same as embodiment 1 except that in embodiment 4 there are two rigid levers 6 and four viscous dissipaters 9; two rigid levers 6 are symmetrically arranged on two sides of the lower wallboard 5; two viscous energy dissipaters 9 are symmetrically arranged on two sides of each rigid lever 6; the bottom of each rigid lever 6 has one or two hinge points with the two viscous dissipaters 9 on the corresponding side. When one hinge point is arranged, the hinge point is a hinge point B; when there are two hinge points, reference is made to example 1, namely hinge points C and D.
Example 5
As shown in fig. 5, this embodiment 5 is substantially the same as embodiment 1, wherein the lower wall panel 5 is preferably a steel wall panel or a concrete wall panel. The lower wall panel 5 may be bolted to the prefabricated lower frame or may be integrated with the prefabricated lower frame beam 2 by means of cast-in-place concrete.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the details of the embodiments, and various equivalent modifications can be made within the technical spirit of the present invention, and the scope of the present invention is also within the scope of the present invention.
Claims (10)
1. The utility model provides a high-efficient viscous energy dissipation prestressing force frame which characterized in that: the energy dissipation device comprises a prestressed frame body, a lower wallboard and a viscous energy dissipation assembly;
the prestressed frame body comprises a prefabricated upper frame beam, a prefabricated lower frame beam, frame columns and prestressed tendons;
the frame columns are provided with two groups and are vertically and parallelly arranged;
the prefabricated upper frame beam and the prefabricated lower frame beam are arranged between the two groups of frame columns in an up-down parallel manner;
the prestressed tendons are respectively arranged in the prefabricated upper frame beam and the prefabricated lower frame beam, and two ends of each prestressed tendon respectively penetrate out of the corresponding frame columns, so that two groups of frame columns are pressed at two ends of the prefabricated upper frame beam and two ends of the prefabricated lower frame beam;
the lower wallboard is fixedly connected to the top surface of the prefabricated lower frame beam;
the viscous energy dissipation assembly comprises a rigid lever and a viscous energy dissipater;
the viscous energy dissipater is arranged on the top surface of the prefabricated lower frame beam;
the top end of the rigid lever is hinged with the bottom center of the prefabricated upper frame beam, and the hinged point is a point
；
The middle part of the rigid lever is hinged with the middle upper part of the lower wallboard, and the hinged point is a point
；
The bottom of the rigid lever is hinged with the output end of the viscous energy dissipater, and the hinged point is a point B;
is provided with
And point
The midpoint of the connecting line is point O, point O and
and
are all distances of
(ii) a The distance between the point O and the point B is
；
When the prefabricated upper frame beam and the prefabricated lower frame beam horizontally stagger, each point on the rigid lever rotates relative to the point O at the same angular speed omega; by adjusting
Length value of (1), lower wallboard relative pointOIs displaced by
At this time, point B will rotate to point
And is and
point to pointOHas an amplifying effect.
2. An efficient viscous energy dissipating prestressed frame as claimed in claim 1, characterized in that: when in use
When the utility model is used, the water is discharged,
point to pointOWill amplify
And (4) doubling.
3. An efficient viscous energy dissipating prestressed frame as claimed in claim 1, characterized in that: the prefabricated lower frame beam is a foundation or foundation.
4. An efficient viscous energy dissipating prestressed frame as claimed in claim 1, characterized in that: the rigid lever is one, the viscous energy dissipater is provided with one, the viscous energy dissipater is arranged on the top surface of the prefabricated underframe beam on one side of the rigid lever, and the output end of the viscous energy dissipater is hinged with the bottom of the rigid lever.
5. A highly efficient viscous energy dissipating prestressed frame as defined by claim 1, characterized by: the rigid lever is one, and the viscous energy dissipater has two, and two viscous energy dissipaters are installed at the prefabricated underframe roof beam top surface of rigid lever both sides symmetrically, and the output of two viscous energy dissipaters is equallyd divide and is articulated bottom the rigid lever mutually respectively.
6. An efficient viscous energy dissipating prestressed frame as claimed in claim 5, characterized in that: the output ends of the two viscous energy dissipaters and the bottom of the rigid lever are provided with one or two hinge points; when a hinge point is arranged, the output ends of the two viscous energy dissipaters are connected in series through a connecting rod, and the middle part of the connecting rod is hinged with the bottom of the rigid lever through the hinge point B; when two hinge points C and D are arranged, when the prefabricated upper frame beam and the prefabricated lower frame beam are still and do not horizontally dislocate, the connecting line of the points C and D is parallel to the prefabricated upper frame beam, and the point B is the middle point of the connecting line of the points C and D.
7. A highly efficient viscous energy dissipating prestressed frame as defined by claim 1, characterized by: the number of the rigid levers is two, and the number of the viscous energy dissipaters is two;
two rigid levers are symmetrically arranged on two sides of the lower wallboard;
the two viscous energy dissipaters are symmetrically arranged on the top surfaces of the prefabricated lower frame beams on the two sides of the lower wall plate;
the bottom of the rigid lever is hinged with the output end of the viscous energy dissipater on the corresponding side and is provided with the same hinge point B.
8. A highly efficient viscous energy dissipating prestressed frame as defined by claim 1, characterized by: the number of the rigid levers is two, and the number of the viscous energy dissipaters is four;
two rigid levers are symmetrically arranged on two sides of the lower wallboard;
two viscous energy dissipaters are symmetrically arranged on two sides of each rigid lever;
the bottom of each rigid lever has one or two hinge points with the two viscous dissipaters on the corresponding side.
9. An efficient viscous energy dissipating prestressed frame as claimed in claim 1, characterized in that: the middle part of the rigid lever is hinged with the middle upper part of the lower wallboard through a middle pin shaft;
the middle part of the rigid lever hinged with the upper part of the lower wallboard is provided with a waist-shaped hole;
the middle pin shaft can slide in the waist-shaped hole.
10. An efficient viscous energy dissipating prestressed frame as claimed in claim 1, characterized in that: the lower wallboard is a steel wallboard or a concrete wallboard.
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| CN202210905496.1A CN115162511A (en) | 2022-07-29 | 2022-07-29 | High-efficient viscous energy dissipation prestressing force frame |
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| CN202210905496.1A CN115162511A (en) | 2022-07-29 | 2022-07-29 | High-efficient viscous energy dissipation prestressing force frame |
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| CN202210905496.1A Pending CN115162511A (en) | 2022-07-29 | 2022-07-29 | High-efficient viscous energy dissipation prestressing force frame |
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