CN111827502B - High-efficient energy dissipation shock attenuation engineering structure system - Google Patents

High-efficient energy dissipation shock attenuation engineering structure system Download PDF

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Publication number
CN111827502B
CN111827502B CN202010499095.1A CN202010499095A CN111827502B CN 111827502 B CN111827502 B CN 111827502B CN 202010499095 A CN202010499095 A CN 202010499095A CN 111827502 B CN111827502 B CN 111827502B
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damper
floor
floor beam
flexible
structure system
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CN111827502A (en
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张强
刘文光
吴铭智
何文福
许浩
胡乐梅
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University of Shanghai for Science and Technology
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University of Shanghai for Science and Technology
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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
    • 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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  • 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)
  • Vibration Prevention Devices (AREA)

Abstract

The invention discloses a high-efficiency energy-dissipation and shock-absorption engineering structure system, which is characterized in that: a damper (2) is arranged on the floor beam of the engineering structure system; the damper is flexibly connected to an upper floor beam or a lower floor beam which generates relative horizontal displacement relative to the floor beam and spans the floor through a flexible connector (1); or the following steps: a damper is arranged on the basis of the engineering structure system; the damper is flexibly connected to the upper floor beam which generates relative horizontal displacement relative to the foundation and spans the floor through a flexible connector. The invention fixes a connecting piece (3) on a floor beam, the near end of the flexible connection is connected with the connecting piece, the far end is connected with a damper, and the damper can be freely selected. The large-displacement floor is connected in a cross-layer mode through the damper, so that the damping force of the damper is amplified under the condition that the interlayer displacement of the damper is small, and the energy consumption effect is improved.

Description

High-efficient energy dissipation shock attenuation engineering structure system
Technical Field
The invention relates to an engineering structure system, in particular to a high-efficiency energy-dissipation and shock-absorption engineering structure system.
Background
The traditional horizontal earthquake-resistant method of the building engineering structure system is mainly used for resisting the earthquake action by enhancing the earthquake-resistant performance of the structure. However, people often cannot predict and estimate the actual strength and characteristics of the earthquake, and the rigidity of the structure cannot be designed to be infinite due to the consideration of construction cost and the limitation of actual conditions. In order to reduce the seismic response of structures, energy-consuming and shock-absorbing technologies are used in more and more projects. The energy dissipation and shock absorption technology consumes energy transferred to a structure by an earthquake through an additional substructure or an energy dissipation device.
At present, scholars at home and abroad have developed various energy dissipation and shock absorption devices with different types and different structures, and due to the fact that the history of research and application of energy dissipation and shock absorption technology is short, in some engineering applications such as reinforced concrete shear wall structures, steel support systems and wood frame structures, the energy dissipation devices cannot play a role or even cannot be started due to insufficient elastic displacement under small earthquakes.
Disclosure of Invention
The invention aims to solve the technical problem of providing an efficient energy-consuming and shock-absorbing engineering structure system, which can enable an energy-consuming device to play a role under the condition of small earthquake, more effectively reduce the earthquake response of the building engineering structure system and further improve the shock absorption effect.
The technical scheme adopted by the invention for solving the problems is as follows:
a high-efficient energy dissipation shock attenuation engineering structure system which characterized in that: a damper is arranged on a floor beam of the engineering structure system; the damper is flexibly connected to the upper floor beam or the lower floor beam which generates relative horizontal displacement relative to the floor beam and spans the floor through a flexible connector;
or:
a damper is arranged on the basis of the engineering structure system; the damper is flexibly connected to the upper floor beam which generates relative horizontal displacement relative to the foundation and spans the floor through a flexible connector.
Preferably, the flexible connector is a steel wire rope, a steel strand or other flexible connectors made of flexible materials, and the flexible connectors are connected with the lower floor beam or the upper floor beam through connecting pieces.
Preferably, the damper is hinged and fixed on a floor beam, a foundation or a stress member such as a shear wall.
On the basis of the above, the invention has the following structural forms:
when the flexible connector is one, the flexible connector is vertically connected with the damper and the lower floor beam or the upper floor beam.
When the number of the flexible connectors is two, one end of each rope is connected with the damper, and the other end of each rope is separately connected with the upper floor beam or the lower floor beam.
When the number of the flexible connectors is four, the damper is connected to the holes of the upper floor beams and the middle floor beams between the upper floor beams and the lower floor beams in the cross-layer in a swinging mode from the middle, one end of each of two ropes of the flexible connectors is connected with one end of the damper, the other end of each rope of the flexible connectors is separately connected with the upper floor beams, and one end of each other two ropes of the flexible connectors is connected with the other end of the damper, and the other end of each rope of the flexible connectors is separately connected with the lower floor beams.
The flexible connector converts the oblique displacement of the flexible connection into horizontal displacement through a pulley and/or guide rail connection conversion device and then is connected with the damper.
The damper is a viscoelastic damper, a viscous damper or an oil damper.
At least one damper is arranged.
The damper (2) is a linear friction damper, an L-shaped friction damper or a Z-shaped friction damper which can adopt bolt pre-tightening to enable the internal friction plate to provide friction energy.
Further, the damper (2) can also be a viscoelastic damper, a viscous damper or an oil damper through an additional connection conversion device.
Therefore, relative displacement of the building acts on the damper through the floor beam and the flexible connection after crossing the floor, so that the damper generates larger relative displacement, namely larger damping force.
The invention has the beneficial effects that:
the invention fixes the connecting piece on the floor beam, the near end of the flexible connection is connected with the connecting piece, the far end is connected with the damper, and the damper can be freely selected. The dampers are connected with floors with large displacement in a cross-layer mode, so that the damping force of the dampers is amplified under the condition that the displacement between the floors is small, and the energy consumption effect is improved.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a schematic view of a damper variation of the embodiment of FIG. 1;
FIG. 4A is a schematic front view of a damper bolt connection of the embodiment of FIG. 1;
FIG. 4B is a rear view of the embodiment of FIG. 1 with the damper bolted together;
FIG. 5 is a schematic view of the arrangement across multiple layers;
FIG. 6 is a schematic view of the connection of the L-shaped friction damper;
FIG. 7 is a schematic view of the attachment of the Z-shaped friction damper;
fig. 8 is a schematic connection diagram of an L-shaped viscous damper having one flexible connector connection point according to the second embodiment;
fig. 9 is a schematic connection diagram of an L-shaped viscous damper having two flexible connector connection points according to a third embodiment.
In the figure: 1-flexible connector, 2-damper, 3-connecting piece.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Example one
As shown in fig. 1-5, in the first embodiment of the efficient energy-dissipating and shock-absorbing engineering structural system of the present invention, a damper 2 is pivotally hinged from the middle on a hole of a floor beam of the engineering structural system, and has two flexible connector connection points, upper and lower.
The damper 2 in this embodiment is a linear, L, or Z-shaped friction damper that can be pre-tightened with bolts to provide frictional energy to the internal friction plates.
The dampers 2 are flexibly connected by means of flexible connectors 1 via connectors 3 to the upper floor beams and to the lower floor beams, which are generating a relatively large horizontal displacement relative to the floor beam span.
The cross-layer in this embodiment may span 1 layer or multiple layers, as shown in fig. 5, which may be determined according to actual energy consumption requirements.
The flexible connector 1 in this embodiment is four steel cables, steel strands or other flexible connectors made of flexible materials. One end of two ropes of the flexible connectors is connected with one flexible connector connecting point of the damper 2, the other end of the two ropes is separately connected with the upper floor beam through a connecting piece 3, one end of the other two ropes of the flexible connectors is connected with the other flexible connector connecting point of the damper, and the other end of the two ropes of the flexible connectors is separately connected with the lower floor beam through a connecting piece.
It is emphasized that the present embodiment spans between the upper floor beams and the intermediate floor beams, and between the lower floor beams and the intermediate floor beams, either by one or more layers, except that the layers that span are not shown. The same applies to the figures of the following examples.
When the cross-layer upper floor beam and the cross-layer lower floor beam generate relatively large translation relative to the floor beam, large displacement can be transmitted to the damper through the flexible connection, so that the relative deformation of the damper is increased, larger damping force is generated, and more energy is consumed.
Example two
As shown in fig. 6, the second embodiment of the present invention is the same as the first embodiment except that the damper 2 is an "L" type damper.
EXAMPLE III
As shown in fig. 7, the third embodiment of the present invention is the same as the first embodiment except that the damper 2 is a "Z" type damper.
Example four
As shown in fig. 8, in the fourth embodiment of the present invention, the right hole of the damper 2 is fixed on the middle floor beam by bolt connection, the left hole is connected with one end of two flexible connecting ropes, the other end of the flexible connecting rope is connected with two connecting pieces 3 by pulleys, and the two connecting pieces 3 are separately and fixedly connected with the upper floor beam.
EXAMPLE five
As shown in fig. 9, in the fifth embodiment of the present invention, the damper 2 is fixed on the middle floor beam by bolt connection, the left hole of the damper 2 is connected with one end of a flexible connecting rope, the other end of the flexible connecting rope is connected with the connecting piece 3 by a pulley, and the connecting piece 3 is fixedly connected with the right side of the upper floor beam. The right hole of the damper 2 is connected with one end of another flexible connecting rope, the other end of the another flexible connecting rope is connected with a connecting piece 3 through a pulley, and the connecting piece 3 is fixedly connected with the left side of the lower floor beam. So that the two flexible connecting ropes are crossed.
For the fourth embodiment and the fifth embodiment, when the upper floor and the lower floor translate, the oblique displacement flexibly connected through the conversion devices such as the pulleys or the guide rails can be converted into the horizontal displacement of the damper, so that the relative deformation of the damper is increased, a larger damping force is generated, and more energy is consumed. The damper is a viscous damper, and can also be a viscoelastic damper, an oil damper and the like.
The damper can also be arranged in parallel.
As far as the flexible connector is one, it connects the damper vertically to the lower floor beam or to the upper floor beam. This is simpler and will not be described in detail.

Claims (1)

1. A high-efficient energy dissipation shock attenuation engineering structure system which characterized in that: a damper (2) is arranged on a floor beam of the engineering structure system; the damper is flexibly connected to an upper floor beam or a lower floor beam which generates relative horizontal displacement relative to the floor beam and spans the floor through a flexible connector (1);
or:
a damper is arranged on the basis of the engineering structure system; the damper is flexibly connected to the upper floor beam which generates relative horizontal displacement relative to the foundation and spans the floor through a flexible connector;
the flexible connector is a steel wire rope or a steel strand, and is connected with the beam on the lower floor or the beam on the upper floor through a connecting piece (3);
the damper is hinged and fixed on a floor beam, a foundation or a stress component of a shear wall;
the number of the flexible connectors is four, the dampers are connected to holes of upper floor beams and middle floor beams between the upper floor beams and the lower floor beams in a spanning mode from the middle in a swinging mode, one end of each of two ropes of the flexible connectors is connected with one end of each damper, the other end of each rope of the flexible connectors is separately connected with the upper floor beams, one end of each other two ropes of the flexible connectors is connected with the other end of each damper, and the other end of each other two ropes of the flexible connectors is separately connected with the lower floor beams;
the damper (2) is a linear, L or Z-shaped friction damper which can adopt bolt pre-tightening to enable the internal friction plate to provide friction energy consumption.
CN202010499095.1A 2020-06-04 2020-06-04 High-efficient energy dissipation shock attenuation engineering structure system Active CN111827502B (en)

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CN113152718A (en) * 2021-04-14 2021-07-23 董道卫 Anti-seismic damping wall for building and mounting structure thereof

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CN205206071U (en) * 2015-11-04 2016-05-04 沈阳建筑大学 Disc type friction power consumption attenuator
KR101842593B1 (en) * 2016-05-23 2018-03-29 주식회사 유니크내진시스템 Method of construction to install a vibration control device
CN106320561B (en) * 2016-11-15 2018-08-14 沈阳建筑大学 A kind of quadrangle pivoting friction damper
CN108442569B (en) * 2018-04-28 2023-12-12 郑州大学 Function-recoverable energy consumption reinforced concrete shear wall and construction method thereof
CN110056233B (en) * 2019-03-19 2020-11-24 上海大学 Intelligent-adjustment double-control composite damping component
CN210178066U (en) * 2019-04-23 2020-03-24 震安科技股份有限公司 Axial type shock attenuation friction damper

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