CN113846766A - Assembled energy dissipation beam section of eccentric bearing structure - Google Patents
Assembled energy dissipation beam section of eccentric bearing structure Download PDFInfo
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- CN113846766A CN113846766A CN202111119391.5A CN202111119391A CN113846766A CN 113846766 A CN113846766 A CN 113846766A CN 202111119391 A CN202111119391 A CN 202111119391A CN 113846766 A CN113846766 A CN 113846766A
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- energy dissipation
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- flange
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- 230000021715 photosynthesis, light harvesting Effects 0.000 title claims abstract description 95
- 238000010276 construction Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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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
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G9/00—Forming or shuttering elements for general use
- E04G9/02—Forming boards or similar elements
- E04G9/021—Forming boards or similar elements the form surface being of cardboard
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses an assembled energy dissipation beam section of an eccentric support structure. The energy dissipation beam comprises an upper frame beam (6), wherein the upper frame beam (6) is connected with an energy dissipation beam section (1), and the energy dissipation beam section (1) comprises an energy dissipation beam upper flange (101), an energy dissipation web plate (103) and an energy dissipation beam lower flange (102) which are sequentially connected; a plurality of holes (104) are formed in the energy dissipation web plate (103), and the energy dissipation beam section (1) is connected with a support (3). The energy dissipation beam section can meet the design requirement by reasonably adjusting the sizes of the energy dissipation web plate and the opening, and has a wide application range. The invention has the advantages of simple components, convenient processing, low manufacturing cost, assembly type construction, easy maintenance and replacement after earthquake and the like.
Description
Technical Field
The invention relates to an assembled energy dissipation beam section of an eccentric support structure, and belongs to the technical field of building structures.
Background
The eccentric supporting structure increases the lateral rigidity of the structure through the support, ensures that the lateral deformation of the structure is in a specified range under frequent earthquakes, and ensures that the regions except the energy-consuming beam sections are not subjected to yielding and damage through setting the energy-consuming beam sections to yield and absorb the earthquake energy under rare earthquakes.
Under the action of a horizontal earthquake, common energy-consuming beam sections consume energy mainly through horizontal shear yield deformation of the common energy-consuming beam sections, but structural members mainly subjected to shear deformation are complex in stress state, and mechanical properties such as bearing capacity and rigidity of the structural members are difficult to grasp. If the bearing capacity of the energy dissipation beam section is too high, large additional shear force and bending moment can be generated in the upper structural beam, and the main structure is easily damaged and destroyed in advance; if the bearing capacity of the energy consumption beam section is too low, the effective energy consumption and shock absorption effects cannot be achieved.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the assembled energy dissipation beam section of the eccentric support structure, the energy dissipation beam section mainly takes bending deformation as a main part, the mechanical properties such as bearing capacity, rigidity and the like are easy to calculate, the design is convenient, and the assembled energy dissipation beam section has the advantages of simple structure, assembled construction, convenience in maintenance after earthquake and the like.
The invention is realized by the following technical scheme:
an assembled energy dissipation beam section of an eccentric support structure comprises an upper frame beam (6), wherein the upper frame beam (6) is connected with an energy dissipation beam section (1), and the energy dissipation beam section (1) comprises an energy dissipation beam upper flange (101), an energy dissipation web plate (103) and an energy dissipation beam lower flange (102) which are sequentially connected; a plurality of holes (104) are formed in the energy dissipation web plate (103), and the energy dissipation beam section (1) is connected with a support (3).
The holes are long round holes, and a plurality of holes are arranged in the center of the energy dissipation web plate (103) in parallel.
The assembled energy dissipation beam section of the eccentric support structure is characterized in that the energy dissipation beam section (1) is connected with the support (3) through a support connecting plate (2), and the support connecting plate (2) comprises a connecting plate flange (201) and a connecting plate web (202).
The assembled energy dissipation beam section of the eccentric support structure is characterized in that two supports (3) are symmetrically arranged on a connecting plate web plate (202).
The assembled energy dissipation beam section of the eccentric support structure is characterized in that bolt holes are formed in the lower flange (102) of the energy dissipation beam, bolt holes matched with the lower flange (102) of the energy dissipation web are formed in the flange (201) of the connecting plate, and the connecting plate is connected with the lower flange (102) of the energy dissipation web through bolts.
The assembled energy dissipation beam section of the eccentric support structure is characterized in that the upper frame beam (6) comprises a frame beam upper flange (601), a frame beam web (603) and a frame beam lower flange (602) which are sequentially connected, and a frame beam stiffening rib (604) is arranged on the frame beam web (603).
The assembled energy dissipation beam section of the eccentric supporting structure is characterized in that bolt holes are formed in the upper flange of the energy dissipation beam, bolt holes matched with the upper flange (101) of the energy dissipation beam section are formed in the lower flange (602) of the frame beam, and the frame beam is connected with the upper flange (101) of the energy dissipation beam section through bolts.
The invention achieves the following beneficial effects:
the energy dissipation web plate of the energy dissipation beam section is provided with a plurality of long round holes, the energy dissipation web plate is divided into a plurality of long and thin laths, and the stress state of the long and thin laths is equivalent to that of a vertical beam with the upper end and the lower end fixed. When the structure is displaced between horizontal layers under the action of earthquake, the upper end and the lower end of the slender batten are displaced in a coordinated horizontal relative mode, and the batten is deformed mainly by bending. Under the stress state, the bearing capacity, the rigidity, the hysteretic energy dissipation capacity and the like of the energy dissipation beam section can be conveniently calculated, so that the design requirement can be met by reasonably adjusting the sizes of the energy dissipation web plate and the opening, and the energy dissipation beam section has a wide application range.
The invention has the advantages of simple components, convenient processing, low manufacturing cost, assembly type construction, easy maintenance and replacement after earthquake and the like.
Drawings
Fig. 1 is a Y-shaped eccentric support frame with an assembled energy dissipation beam section of the invention installed.
Fig. 2 is a schematic view of the assembled energy dissipation beam section of the present invention.
Fig. 3 is a sectional view taken along line a-a of fig. 2.
Figure 4 is a schematic view of the structure of the energy dissipating web.
Figure 5 is a simplified calculation of the energy dissipating web.
Fig. 6 is a schematic view of the structure of the energy dissipation web when a horizontal relative displacement of Δ occurs.
In the figure: 1. energy dissipation beam section, 101, energy dissipation beam top flange, 102, energy dissipation beam bottom flange, 103, energy dissipation web, 2, support connecting plate, 201, connecting plate flange, 202, connecting plate web, 3, support, 4, gusset plate, 5, frame column, 6, frame beam, 601, frame beam top flange, 602, frame beam bottom flange, 603, frame beam web, 7, lower frame beam.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings. Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Referring to fig. 1, 2 and 3, the Y-shaped eccentric support steel frame with the assembled energy dissipation beam section of the invention comprises an energy dissipation beam section 1, a frame beam 6, two herringbone supports 3, a support connecting plate 2, a gusset plate 4, a frame column 5 and a lower frame beam 7.
The energy dissipation beam section 1 comprises an energy dissipation beam upper flange 101, an energy dissipation beam lower flange 102 and an energy dissipation web 103. The upper flange 101 of the energy dissipation beam and the lower flange 102 of the energy dissipation beam are parallel to each other and are respectively provided with two rows of bolt holes; the energy dissipation web plate 103 is perpendicular to the upper flange 101 of the energy dissipation beam and the lower flange 102 of the energy dissipation beam and is arranged in the middle, a row of long circular holes 104 are formed in the middle of the energy dissipation web plate 103, and the long axis direction of the long circular holes 104 is perpendicular to the flange of the energy dissipation beam.
The frame beam 6 includes a frame beam upper flange 601, a frame beam lower flange 602, a frame beam web 603, and a frame beam stiffener 604. The lower flange 602 of the frame beam is attached to and arranged with the upper flange 101 of the energy dissipation beam section and connected with the energy dissipation beam section through bolts; the frame beam stiffeners 604 are arranged at the corresponding positions of the energy dissipation beam sections 1 to prevent the unexpected early damage of the frame beams in the area.
The support web 2 comprises a web flange 201 and a web 202. The connecting plate flange 201 and the connecting plate web 202 are perpendicular to each other, and the connecting plate flange 201 and the energy dissipation web lower flange 102 are arranged in a fit mode and connected through bolts.
One end of the support 3 is connected to the connecting plate web 202, and the other end is connected with the outer frame node through the node plate 4.
Referring to fig. 4, the energy-dissipating web 103 of the energy-dissipating beam section 1 of the present invention can be equivalent by using the calculation diagram of fig. 5, and the upper and lower ends h of the energy-dissipating web 1031The solid web part in the height range is equivalent to the steel arm 105, and the deformation of the steel arm in the working process of the energy dissipation beam section 1 is neglected; h with an opening in the middle of the energy dissipation web 1032Within the height range, the width of both ends is b1Is equivalent to an equivalent beam 106 with a median width b2The slats of (a) are equivalent to the equivalent beams 107.
Referring to fig. 6, when the top flange 101 and the bottom flange 102 of the energy dissipation beam section 1 have horizontal relative displacement of the magnitude of Δ and the energy dissipation web 103 is not yielding, the total horizontal shearing force F generated by the energy dissipation web 103 is
In the formula (I), the compound is shown in the specification,
the modulus of elasticity of the material of the energy dissipation web 103,
the moment of inertia of the section of the equivalent beam 106,
the moment of inertia of the section of the equivalent beam 107,
width of
The number of the slats of (a) is,
-energy dissipating web thickness.
Therefore, the lateral stiffness k of the energy dissipating beam section 1 in the elastic phase is
The horizontal displacement and the shearing force corresponding to the energy dissipation web plate 103 when yielding are
In the formula (I), the compound is shown in the specification,
-the yield stress of the material of the energy dissipating web 103,
。
according to the calculation formulas of the lateral stiffness, the yield shear force and the yield displacement, the energy dissipation web plate 3 can be conveniently designed to meet different structural requirements.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (7)
1. An assembled energy dissipation beam section of an eccentric supporting structure comprises an upper frame beam (6) and is characterized in that the upper frame beam (6) is connected with an energy dissipation beam section (1), and the energy dissipation beam section (1) comprises an energy dissipation beam upper flange (101), an energy dissipation web plate (103) and an energy dissipation beam lower flange (102) which are sequentially connected; a plurality of holes (104) are formed in the energy dissipation web plate (103), and the energy dissipation beam section (1) is connected with a support (3).
2. An assembled energy-dissipating beam section of an eccentric support structure as claimed in claim 1, in which the holes are oblong holes and a plurality of holes are provided in parallel in the centre of the energy-dissipating web (103).
3. An assembled energy dissipating beam section of an eccentric support structure as claimed in claim 1 in which the energy dissipating beam section (1) is connected to the support (3) by a support web (2), the support web (2) comprising a web flange (201) and a web (202).
4. An eccentric support structure fabricated energy dissipating beam section as claimed in claim 3 in which there are two of the supports (3) and symmetrically located on the web (202) of the connecting plate.
5. The assembled energy dissipation beam section of the eccentric support structure as claimed in claim 3, wherein the bottom flange (102) of the energy dissipation beam is provided with bolt holes, and the connecting plate flange (201) is provided with bolt holes matched with the bottom flange (102) of the energy dissipation web and connected with the bottom flange (102) of the energy dissipation web through bolts.
6. The assembled energy dissipation beam section of the eccentric support structure of claim 1, wherein the upper frame beam (6) comprises a frame beam upper flange (601), a frame beam web (603) and a frame beam lower flange (602) which are connected in sequence, and the frame beam web (603) is provided with a frame beam stiffening rib (604).
7. The assembled energy dissipation beam section of the eccentric support structure as claimed in claim 6, wherein the energy dissipation beam is provided with bolt holes on the upper flange, the frame beam lower flange (602) is provided with bolt holes matched with the energy dissipation beam section upper flange (101), and the frame beam lower flange is connected with the energy dissipation beam section upper flange (101) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111119391.5A CN113846766A (en) | 2021-09-24 | 2021-09-24 | Assembled energy dissipation beam section of eccentric bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111119391.5A CN113846766A (en) | 2021-09-24 | 2021-09-24 | Assembled energy dissipation beam section of eccentric bearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113846766A true CN113846766A (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111119391.5A Pending CN113846766A (en) | 2021-09-24 | 2021-09-24 | Assembled energy dissipation beam section of eccentric bearing structure |
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| Country | Link |
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| CN (1) | CN113846766A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130340360A1 (en) * | 2012-06-22 | 2013-12-26 | Chong-Shien Tsai | Self-centering damper |
| CN107190874A (en) * | 2017-05-03 | 2017-09-22 | 南昌大学 | A kind of replaceable reaming bolt connecting-type energy dissipating beam section and its construction method being used in Y shape eccentrically braces structure |
| CN108517958A (en) * | 2018-04-17 | 2018-09-11 | 西京学院 | A kind of assembling type steel structure energy-dissipating type bean column node and its assembly method |
| CN108532756A (en) * | 2018-03-02 | 2018-09-14 | 国核电力规划设计研究院有限公司 | Shearing-type accentric support dissipative links, shearing-type eccentrically braces structure |
| CN209397989U (en) * | 2018-09-26 | 2019-09-17 | 清华大学 | The energy-dissipating and shock-absorbing body structure at overhead only column station |
-
2021
- 2021-09-24 CN CN202111119391.5A patent/CN113846766A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130340360A1 (en) * | 2012-06-22 | 2013-12-26 | Chong-Shien Tsai | Self-centering damper |
| CN107190874A (en) * | 2017-05-03 | 2017-09-22 | 南昌大学 | A kind of replaceable reaming bolt connecting-type energy dissipating beam section and its construction method being used in Y shape eccentrically braces structure |
| CN108532756A (en) * | 2018-03-02 | 2018-09-14 | 国核电力规划设计研究院有限公司 | Shearing-type accentric support dissipative links, shearing-type eccentrically braces structure |
| CN108517958A (en) * | 2018-04-17 | 2018-09-11 | 西京学院 | A kind of assembling type steel structure energy-dissipating type bean column node and its assembly method |
| CN209397989U (en) * | 2018-09-26 | 2019-09-17 | 清华大学 | The energy-dissipating and shock-absorbing body structure at overhead only column station |
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Application publication date: 20211228 |
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