CN113323484A - Column base node of grid type damper with replaceable after-earthquake - Google Patents
Column base node of grid type damper with replaceable after-earthquake Download PDFInfo
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- CN113323484A CN113323484A CN202110603493.8A CN202110603493A CN113323484A CN 113323484 A CN113323484 A CN 113323484A CN 202110603493 A CN202110603493 A CN 202110603493A CN 113323484 A CN113323484 A CN 113323484A
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- column
- bowl
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- type damper
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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
- 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
- E04H9/025—Structures with concrete columns
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- 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 column base node of a grid type damper capable of being replaced after additional earthquake, belonging to the technical field of structural engineering earthquake resistance, and comprising an upper column, a lower column, a bowl-shaped support positioned at the axial center of the upper column and the lower column and a grid type damper arranged around the bowl-shaped support; the end surfaces of the upper bowl-shaped support and the lower bowl-shaped support are respectively provided with an arc-shaped bulge and an arc-shaped groove, and a plurality of wave springs are additionally arranged between the arc-shaped bulge and the arc-shaped groove, or a plurality of disc springs are sleeved on the periphery of the bowl-shaped support; the grid type damper is a steel structural member and comprises a frame and grids interwoven in the frame, and the upper frame and the lower frame are detachably connected with the steel end plates of the upper column and the lower column respectively. The force transmission is clear, the bowl-shaped support can bear axial force and shearing force, and the rotation in all directions can be realized during earthquake. The grid type damper can dissipate earthquake energy, improve the shock resistance, and is convenient to replace and maintain after an earthquake.
Description
Technical Field
The invention belongs to the technical field of structural engineering earthquake resistance, and relates to a column base node of a grid type damper which can be replaced after additional earthquake.
Background
At present, the performance-based earthquake-proof design becomes the mainstream of earthquake-proof design, and how to enable the whole building, even the whole city and even the whole society to have the recovery function after an earthquake occurs has brought close attention and wide discussion to the earthquake engineering world in recent years. How to design a structure which can not be damaged or only be damaged quickly in the earthquake becomes one of the important research directions for the sustainable development of engineering earthquake resistance. By weakening some parts of the structure system and realizing concentrated energy dissipation at the parts, the damage of the structure under the action of earthquake can be effectively controlled, and the damaged parts can be replaced to ensure that the building can quickly recover the function after the earthquake.
After the earthquake, the plastic hinge appears at the column end of the concrete frame, and the stability of the whole structure is influenced. The column end is difficult to repair after being damaged, and the restorability after the earthquake is poor. If the damage is concentrated on the energy consumption mechanism, the function of the structure can be quickly recovered only by replacing the energy consumption mechanism after the earthquake.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a column base node with an additional post-earthquake replaceable grid-type damper, so as to solve the problem of difficulty in post-earthquake maintenance of the column base node of the existing concrete frame structure.
In order to achieve the purpose, the invention provides the following technical scheme:
a column base node of a grid type damper with an additional replaceable after-shock structure comprises an upper column, a lower column, a bowl-shaped support and a grid type damper, wherein the upper column and the lower column are opposite up and down;
the upper column and the lower column are reinforced concrete square columns, steel end plates are respectively fixed on the mutually-oriented cylindrical surfaces of the upper column and the lower column, the centers of the two steel end plates are respectively connected with a steel bowl-shaped support, an arc-shaped bulge is arranged on the end surface of the bowl-shaped support of the upper column, an arc-shaped groove is arranged on the end surface of the bowl-shaped support of the lower column, and the arc-shaped bulge and the arc-shaped groove form a convex-concave arc-shaped matching structure;
a plurality of wave springs are arranged in the arc-shaped groove of the bowl-shaped support of the lower column;
the grid type damper is a steel structural member and comprises an upper frame, a lower frame and grids interwoven in the upper frame and the lower frame, wherein the upper frame and the lower frame are detachably connected with steel end plates of an upper column and a lower column respectively through mounting plates connected with the upper frame and the lower frame.
Furthermore, threaded holes are uniformly distributed in the steel end plates of the upper column and the lower column, bolt holes matched with the threaded holes are correspondingly arranged in the mounting plate connected with the upper frame and the lower frame of the grid type damper, and the grid type damper is fastened through bolts inserted into the bolt holes and the corresponding threaded holes.
Further, the wave spring is welded in the arc-shaped groove.
A column base node of a grid type damper with an additional replaceable after-shock structure comprises an upper column, a lower column, a bowl-shaped support and a grid type damper, wherein the upper column and the lower column are opposite up and down;
the upper column and the lower column are reinforced concrete square columns, steel end plates are respectively fixed on the mutually-oriented cylindrical surfaces of the upper column and the lower column, the centers of the two steel end plates are respectively connected with a steel bowl-shaped support, an arc-shaped bulge is arranged on the end surface of the bowl-shaped support of the upper column, an arc-shaped groove is arranged on the end surface of the bowl-shaped support of the lower column, and the arc-shaped bulge and the arc-shaped groove form a convex-concave arc-shaped matching structure;
a plurality of disc springs are sleeved on the peripheries of the bowl-shaped supports of the upper column and the lower column, and the disc springs are positioned on the inner sides of the grid type dampers;
the grid type damper is a steel structural member and comprises an upper frame, a lower frame and grids interwoven in the upper frame and the lower frame, wherein the upper frame and the lower frame are detachably connected with steel end plates of an upper column and a lower column respectively through mounting plates connected with the upper frame and the lower frame.
Furthermore, threaded holes are uniformly distributed in the steel end plates of the upper column and the lower column, bolt holes matched with the threaded holes are correspondingly arranged in the mounting plate connected with the upper frame and the lower frame of the grid type damper, and the grid type damper is fastened through bolts inserted into the bolt holes and the corresponding threaded holes.
The invention has the beneficial effects that:
(1) the invention has definite force transmission, the bowl-shaped support can bear axial force and shearing force, and the rotation in all directions can be realized during earthquake.
(1) The lattice type damper is additionally arranged on the column base node, the butt joint part of the upper column and the lower column of the column base node is wrapped in the lattice type damper, when an earthquake occurs, the lattice type damper connected with the upper column and the lower column plays a role in energy consumption, bears earthquake load and controls damage on the lattice type damper, so that the main body part of the column base node is protected, and the earthquake resistance of the column base node is improved. Because the grid type damper is detachably connected with the upper column and the lower column, the grid type damper is easy to replace after being damaged.
(2) According to the column base joint disclosed by the invention, a plurality of wave springs are arranged in the arc-shaped groove of the bowl-shaped support of the lower column; the elastic force of the wave spring is utilized to cooperate with the grid type damper to play the effects of shock absorption and energy dissipation, and the shock resistance of the column base joint is further improved.
(3) The column base node disclosed by the invention can also be sleeved with a plurality of disc springs at the peripheries of the bowl-shaped supports of the upper column and the lower column, and the elastic force of the disc springs and the grid type damper are utilized to cooperatively play the effects of shock absorption and energy dissipation, so that the shock resistance of the column base node is further improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic structural view of a column shoe node according to embodiment 1 of the present invention;
fig. 2 is a schematic sectional view of a column shoe node according to embodiment 1 of the present invention;
FIG. 3 is a schematic structural view of a mesh type damper according to embodiment 1 of the present invention;
FIG. 4 is a schematic structural view of a wave spring in an arc-shaped groove;
fig. 5 is a schematic structural view of a disc spring according to embodiment 2 of the present invention.
Reference numerals: the device comprises an upper column 1, a lower column 2, a steel end plate 3, a bowl-shaped support 4, an arc-shaped protrusion 5, an arc-shaped groove 6, a grid-type damper 7, a frame 701, a grid 702, a mounting plate 703, a wave spring 704 and a disc spring 705.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Example 1:
referring to fig. 1 to 4, a column base node of a lattice-type damper 7 which can be replaced after an additional earthquake includes an upper column 1 and a lower column 2 which are opposite to each other, a bowl-shaped support 4 which is located at the axial center of the upper column 1 and the lower column 2 and is opposite to each other, and a lattice-type damper 7 which is arranged around the bowl-shaped support 4.
Specifically, the upper column 1 and the lower column 2 are reinforced concrete square columns, the steel end plates 3 are respectively fixed on the two mutually-oriented cylindrical surfaces, the centers of the two steel end plates 3 are respectively connected with a steel bowl-shaped support 4, an arc protrusion 5 is arranged on the end surface of the bowl-shaped support 4 of the upper column 1, an arc groove 6 is arranged on the end surface of the bowl-shaped support 4 of the lower column 2, and the arc protrusion 5 and the arc groove 6 form a convex-concave arc matching structure. The bowl-shaped support 4 can bear axial force and shearing force, and can rotate in all directions during earthquake.
A plurality of wave springs 704 are welded into the arcuate recesses 6 of the bowl-shaped seat 4 of the lower column 2.
The grid type dampers 7 are steel structural members, and have four groups, including upper and lower frames 701 and grids 702 interlaced in the upper and lower frames 701, and the upper and lower frames 701 are detachably connected to the steel end plates 3 of the upper and lower columns 1 and 2 through mounting plates 703 connected thereto, respectively.
The mounting plate 703 that the upper and lower frames 701 of this grid type damper 7 link up is equipped with the bolt hole that matches with the threaded hole that is evenly distributed on the steel end plate 3 of upper prop 1 and lower prop 2 correspondingly, through inserting bolt hole and the bolt in the corresponding threaded hole, in order to fix the frame 701 on the steel end plate 3.
The grid type damper 7 wraps the butt joint part of the upper column 1 and the lower column 2 of the column base node in the grid type damper, when an earthquake occurs, the grid type damper 7 connected with the upper column 1 and the lower column 2 plays an energy dissipation role, bears earthquake load, and controls damage on the grid type damper 7, so that the main body part of the column base node is protected, and the earthquake resistance of the column base node is improved. Because the grid type damper 7 is detachably connected with the upper column 1 and the lower column 2, the grid type damper is easy to replace after being damaged.
The elastic force of the wave spring 704 is utilized to cooperate with the grid type damper 7 to play the efficacy of shock absorption and energy dissipation, and the shock resistance of the column base joint is further improved.
Example 2:
as shown in fig. 5, the main difference between embodiment 2 and embodiment 1 is that a plurality of disc springs 705 are fitted around the outer peripheries of the bowl-shaped brackets 4 of the upper column 1 and the lower column 2, and the disc springs 705 are located inside the mesh-type damper 7. The elastic force of the disc spring 705 is utilized to cooperate with the grid type damper 7 to play the efficacy of shock absorption and energy dissipation, and the shock resistance of the column base joint is further improved.
In addition, 703 and the wave spring 704 in embodiment 1 can also be used in combination with the disc spring 705 in embodiment 2, thereby improving the earthquake resistance more.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (5)
1. A column base node of an additional post-earthquake replaceable grid type damper, characterized in that: the damping device comprises an upper column and a lower column which are opposite up and down, bowl-shaped supports which are respectively positioned at the axial centers of the upper column and the lower column and are opposite up and down, and grid-type dampers which are arranged around the bowl-shaped supports in an enclosing way;
the upper column and the lower column are reinforced concrete square columns, steel end plates are respectively fixed on the mutually-oriented cylindrical surfaces of the upper column and the lower column, the centers of the two steel end plates are respectively connected with a steel bowl-shaped support, an arc-shaped bulge is arranged on the end surface of the bowl-shaped support of the upper column, an arc-shaped groove is arranged on the end surface of the bowl-shaped support of the lower column, and the arc-shaped bulge and the arc-shaped groove form a convex-concave arc-shaped matching structure;
a plurality of wave springs are arranged in the arc-shaped groove of the bowl-shaped support of the lower column;
the grid type damper is a steel structural member and comprises an upper frame, a lower frame and grids interwoven in the upper frame and the lower frame, wherein the upper frame and the lower frame are detachably connected with steel end plates of an upper column and a lower column respectively through mounting plates connected with the upper frame and the lower frame.
2. The column foot node of an additional post-shock replaceable lattice-type damper according to claim 1, wherein: threaded holes are uniformly distributed in the steel end plates of the upper column and the lower column, bolt holes matched with the threaded holes are correspondingly arranged in the mounting plate connected with the upper frame and the lower frame of the grid type damper, and the grid type damper is fastened through bolts inserted into the bolt holes and the corresponding threaded holes.
3. The column foot node of an additional post-shock replaceable lattice-type damper according to claim 1, wherein: the wave spring is welded in the arc-shaped groove.
4. A column base node of an additional post-earthquake replaceable grid type damper, characterized in that: the damping device comprises an upper column and a lower column which are opposite up and down, bowl-shaped supports which are respectively positioned at the axial centers of the upper column and the lower column and are opposite up and down, and grid-type dampers which are arranged around the bowl-shaped supports in an enclosing way;
the upper column and the lower column are reinforced concrete square columns, steel end plates are respectively fixed on the mutually-oriented cylindrical surfaces of the upper column and the lower column, the centers of the two steel end plates are respectively connected with a steel bowl-shaped support, an arc-shaped bulge is arranged on the end surface of the bowl-shaped support of the upper column, an arc-shaped groove is arranged on the end surface of the bowl-shaped support of the lower column, and the arc-shaped bulge and the arc-shaped groove form a convex-concave arc-shaped matching structure;
a plurality of disc springs are sleeved on the peripheries of the bowl-shaped supports of the upper column and the lower column, and the disc springs are positioned on the inner sides of the grid type dampers;
the grid type damper is a steel structural member and comprises an upper frame, a lower frame and grids interwoven in the upper frame and the lower frame, wherein the upper frame and the lower frame are detachably connected with steel end plates of an upper column and a lower column respectively through mounting plates connected with the upper frame and the lower frame.
5. The column foot node of an additional post-shock replaceable lattice-type damper according to claim 4, wherein: threaded holes are uniformly distributed in the steel end plates of the upper column and the lower column, bolt holes matched with the threaded holes are correspondingly arranged in the mounting plate connected with the upper frame and the lower frame of the grid type damper, and the grid type damper is fastened through bolts inserted into the bolt holes and the corresponding threaded holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110603493.8A CN113323484A (en) | 2021-05-31 | 2021-05-31 | Column base node of grid type damper with replaceable after-earthquake |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110603493.8A CN113323484A (en) | 2021-05-31 | 2021-05-31 | Column base node of grid type damper with replaceable after-earthquake |
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| CN113323484A true CN113323484A (en) | 2021-08-31 |
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| CN202110603493.8A Pending CN113323484A (en) | 2021-05-31 | 2021-05-31 | Column base node of grid type damper with replaceable after-earthquake |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323481A (en) * | 2021-05-31 | 2021-08-31 | 重庆大学 | Column base node with additional replaceable U-shaped damper after earthquake |
| CN116905655A (en) * | 2023-09-11 | 2023-10-20 | 北京建筑大学 | Sleeve type flange connection modularized steel structure system and building thereof |
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| CN110359633A (en) * | 2019-07-29 | 2019-10-22 | 东南大学 | A kind of concrete foot joint of the replaceable energy consumption connection component containing high ductility |
| CN111549925A (en) * | 2020-04-16 | 2020-08-18 | 重庆大学 | Composite liquid-particle tuned damping device for vibration reduction of wind power structure |
| CN211523601U (en) * | 2019-12-25 | 2020-09-18 | 西安建筑科技大学 | Energy dissipation damper applied to frame column |
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| US3726950A (en) * | 1970-01-02 | 1973-04-10 | L Turzillo | Method for producing sub-aqueous and other cast-in-place concrete structures in situ |
| US20120255243A1 (en) * | 2011-04-06 | 2012-10-11 | Liang Kung Jen | Seismic coupler |
| FR2985748A1 (en) * | 2012-01-18 | 2013-07-19 | Francoise Dauron | Reinforced concrete structure for use in upper and lower slabs to assure descents of loads of building exposed to earthquake, has hollow tube comprising cylindrical section whose hollow interior volume is decreased under deformations |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113323481A (en) * | 2021-05-31 | 2021-08-31 | 重庆大学 | Column base node with additional replaceable U-shaped damper after earthquake |
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| CN116905655A (en) * | 2023-09-11 | 2023-10-20 | 北京建筑大学 | Sleeve type flange connection modularized steel structure system and building thereof |
| CN116905655B (en) * | 2023-09-11 | 2024-01-19 | 北京建筑大学 | Sleeve type flange connection modularized steel structure system and building thereof |
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Application publication date: 20210831 |
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