CN113818738A - C-shaped shell device with buckling threshold and large displacement in tension - Google Patents
C-shaped shell device with buckling threshold and large displacement in tension Download PDFInfo
- Publication number
- CN113818738A CN113818738A CN202111283600.XA CN202111283600A CN113818738A CN 113818738 A CN113818738 A CN 113818738A CN 202111283600 A CN202111283600 A CN 202111283600A CN 113818738 A CN113818738 A CN 113818738A
- Authority
- CN
- China
- Prior art keywords
- steel plate
- shaped shell
- tension
- buckling threshold
- abutment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0215—Bearing, supporting or connecting constructions specially adapted for such buildings involving active or passive dynamic mass damping systems
-
- 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
- E04H9/025—Structures with concrete columns
Abstract
The invention relates to a C-shaped shell device with a buckling threshold and capable of being greatly displaced when being pulled, which mainly comprises an upper steel plate, a steel plate with abutments, a C-shaped shell and a plurality of springs. The C-shaped shell is made of high-strength high-quality carbon structural steel, has high bearing capacity and a buckling threshold value, is deformed and concentrated on the plate spring when being subjected to small pressure, is mainly borne by the C-shaped shell when being subjected to strong wind, and is released by large displacement generated by the spring when being pulled. The invention can be applied to a TMD-like structure system with a shock insulation layer, so that the building structure has better wind resistance, which is particularly shown in the transverse supporting function of the C-shaped shell to the frame and the returning function of the spring to the frame.
Description
Technical Field
The invention belongs to the technical field of building structures, and particularly relates to a C-shaped shell device with a buckling threshold and capable of being pulled and greatly displaced.
Background
The C-shaped shell has the advantages of high bearing capacity, good fatigue resistance, capability of recovering the original shape after large deformation, larger vertical bearing capacity and the like, and is made of high-strength high-quality carbon structural steel, light in weight and high in strength.
The spring is an indispensable part in TMD (tuned mass damping), works together with the mass block and the damping system, the natural vibration frequency of the mass block is adjusted to be close to the basic frequency of the main structure, when the main structure vibrates under the action of vibration excitation, the sub-structure generates an inertia force opposite to the vibration direction of the main structure to act on the main structure, so that the reaction of the main structure is attenuated and controlled, and the aim of shock absorption is fulfilled. As shown in fig. 4 and 5, a TMD-like structure with a seismic isolation layer is provided, the floors above the seismic isolation layer are used as substructures of the TMD, and springs are laterally arranged on the columns and supported on the shear walls of the core cylinder.
For a TMD-like structure provided with a shock insulation layer, the shock resistance is improved to some extent, and meanwhile, the wind resistance is weakened. When it is loaded by wind, it can not effectively control the horizontal displacement of floor because the spring is deformed when it is pressed.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a C-shaped shell device with a buckling threshold and capable of being greatly displaced by being pulled. When the structure is subjected to large wind force, pressure is borne by the C-shaped shell independently, and due to the fact that the bearing capacity of the C-shaped shell is high, the wind-receiving side frame is supported by the C-shaped shell, the C-shaped shell can deform, but the rigidity of the C-shaped shell is far larger than that of the spring, and therefore displacement of the upper structure is effectively controlled. Under the action of large earthquake, the C-shaped shell on one side is buckled, the spring on the other side is pulled, and the C-shaped shell plays a role in buckling the threshold value, so that the vibration of the structure is effectively controlled.
In order to achieve the purpose, the invention adopts the technical scheme that:
a C-shell assembly having a buckling threshold and being substantially displaceable in tension, comprising:
an upper steel plate 1;
the lower surface of the middle steel plate 3 is provided with a pier 7;
the lower steel plate 2 is arranged, and the abutment 7 is arranged on the upper surface of the lower steel plate;
the C-shaped shell 4 is connected between the upper steel plate 1 and the middle steel plate 3, and the length direction of the C-shaped shell 4 is the vertical direction;
and
a plurality of springs 5 connected between the middle steel plate 3 and the lower steel plate 2.
The sections of the upper steel plate 1, the middle steel plate 3 and the lower steel plate 2 are all square, and the section sizes and the thicknesses are the same.
Pier 7 constructs as an organic whole with middle steel sheet 3, and it is located the central authorities of 3 lower surfaces of middle steel sheet, is the cuboid shape, and both ends and 3 parallel and level of middle steel sheet leave the space in both sides.
The lower surface of the upper steel plate 1 and the upper surface of the middle steel plate 3 are both welded with splicing plates 6, screw holes are formed in the splicing plates 6, and the C-shaped shell 4 is connected with the upper steel plate 1 and the steel plate 3 through high-strength bolts through the splicing plates 6.
The C-shaped shell 4 is made of high-strength carbon structural steel.
The thickness of the C-shaped shell 4 is 1-3mm, the curvature radius is 100-200mm, the opening angle is 30-90 degrees, and the height is 300-600 mm.
The springs 5 are connected with the middle steel plate 3 and the lower steel plate 2 in a welding mode and are evenly distributed on two sides of the abutment 7, and when the springs 5 are in an initial state, the distance between the lower surface of the abutment 7 and the lower steel plate 2 is 2-3cm, so that the deformation of the device under the action of small wind and small vibration is concentrated on the springs 5, and the force under the action of large wind and large vibration is mainly born by the C-shaped shell 4.
The upper steel plate 1 and the lower steel plate 2 are both provided with bolt holes, screws are pre-embedded in the reinforced concrete columns 9 at the height of the floor slab and the core tube shear walls 10 at the equal height, and the lower steel plate 2 and the core tube shear walls 10 and the upper steel plate 1 and the reinforced concrete columns 9 are connected through high-strength bolts.
The reinforced concrete column 9, the core tube shear wall 10, the C-shaped shell shock insulation layer 11, the reinforced concrete half wall 12 and the wind-resistant device 8 form a TMD-like system.
Compared with the prior art, the invention has the beneficial effects that: the C-shaped shell device with the buckling threshold capable of being displaced greatly when being pulled has the advantages of simple structure, good durability, strong wind resistance and the like. The C-shaped shell is made of high-strength carbon structural steel, so that the C-shaped shell has good mechanical properties such as elastic limit, strength limit and fatigue property and high bearing capacity. When the upper structure of the shock insulation layer is under the action of wind load, one end of the C-shaped shell arranged between the reinforced concrete column and the core tube shear wall is pressed, and the other end of the C-shaped shell is pulled, so that the displacement of floors is effectively controlled.
Drawings
FIG. 1 is a diagram illustrating the constitutive relation of the present invention.
Fig. 2 is a schematic diagram of the general structure of the present invention.
Fig. 3 is a position view (top view) of the present invention in use.
FIG. 4 is an elevation view of a TMD-like structure with seismic isolation layers.
FIG. 5 is a sectional view taken along line 1-1.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the drawings and examples.
As shown in fig. 1 and 2, the C-shaped shell device with buckling threshold capable of being displaced greatly by being pulled comprises an upper steel plate 1, a middle steel plate 3, a lower steel plate 2, a C-shaped shell 4 and a plurality of springs 5, wherein the lower surface of the middle steel plate 3 is provided with an abutment 7, the abutment 7 is arranged on the upper surface of the lower steel plate 2, the C-shaped shell 4 is connected between the middle steel plate 3 and the lower steel plate 2, the length direction of the C-shaped shell is in the up-down direction, and each spring 5 is also connected between the middle steel plate 3 and the lower steel plate 2.
In one embodiment of the invention, the upper steel plate 1, the lower steel plate 2 and the middle steel plate 3 have the same cross section size and thickness, and the cross section is square, but the upper steel plate 1 and the lower steel plate 2 are provided with bolt holes, the middle steel plate 3 does not need to be provided with holes, and only the abutment 7 is arranged below.
In one embodiment of the present invention, the abutment 7 is integrally formed with the middle steel plate 3, and is located at the center of the lower surface of the middle steel plate 3, and has a rectangular parallelepiped shape with two ends flush with the middle steel plate 3 and two sides having a space.
In one embodiment of the invention, the splice plates 6 are welded on the lower surface of the upper steel plate 1 and the upper surface of the middle steel plate 3, the splice plates 6 are provided with screw holes, and the C-shaped shell 4 is connected with the upper steel plate 1 and the steel plate 3 through the splice plates 6 by high-strength bolts.
In one embodiment of the invention, the springs 5 are connected with the middle steel plate 3 and the lower steel plate 2 through welding and are uniformly distributed on two sides of the abutment 7, and when the springs 5 are in an initial state, the distance between the lower surface of the abutment 7 and the lower steel plate 2 is 2-3cm, so that the pressure deformation of the device under small wind and small vibration is concentrated on the springs 5, and the pressure under the action of large wind and large vibration is mainly born by the C-shaped shell 4.
The invention provides good compression resistance and produces large displacements when under tension.
In one embodiment of the invention, the C-shaped shell 4 is made of high strength carbon structural steel. If the curvature radius R and the thickness t of the C-shaped shell 4 are controlled within a certain range, after large deformation occurs under the action of buckling load, material buckling cannot occur, only elastic deformation occurs, and the C-shaped shell can be restored to the original shape after being unloaded. Illustratively, the thickness is generally 1-3mm, the radius of curvature is generally 100-200mm, the opening angle is generally 30-90 °, and the height is generally 300-600 mm. Taking the C-shaped shell 4 with the thickness of 2mm, the curvature radius of 100mm, the opening angle of 60 degrees and the height of 600mm as an example, the bearing capacity of the C-shaped shell can reach 44kN through an axial pressure test, and the C-shaped shell has no obvious attenuation after being loaded for many times. The spring 5 with the rigidity far less than the compression rigidity of the C-shaped shell 4 is selected, so that the deformation of the device is mainly concentrated on the spring 5 when the device is pulled.
As shown in fig. 3, in an embodiment of the present invention, bolt holes are formed in both the upper steel plate 1 and the lower steel plate 2, and when in use, screws are embedded in the reinforced concrete column 9 at the floor height and the core tube shear wall 10 at the equal height, and the lower steel plate 2 and the core tube shear wall 10, and the upper steel plate 1 and the reinforced concrete column 9 are connected by high-strength bolts.
As shown in fig. 4 and 5, which are schematic diagrams of TMD-like structural bodies and a section 1-1 (top view), respectively, the system comprises a C-shaped shell seismic isolation layer 11 and a reinforced concrete half wall 12, in addition to a wind resistance device 8, a reinforced concrete column 9 and a core tube shear wall 10, which together form a TMD-like structural system.
Claims (10)
1. A C-shell apparatus having a buckling threshold that is substantially displaceable in tension, comprising:
an upper steel plate (1);
the lower surface of the middle steel plate (3) is provided with a pier (7);
the lower steel plate (2), the abutment (7) is arranged on the upper surface of the lower steel plate;
the C-shaped shell (4) is connected between the upper steel plate (1) and the middle steel plate (3), and the length direction of the C-shaped shell (4) is the vertical direction;
and
a plurality of springs (5) connected between the middle steel plate (3) and the lower steel plate (2).
2. The C-shell device with buckling threshold large displaceable in tension according to claim 1, characterized in that the upper steel plate (1), the middle steel plate (3) and the lower steel plate (2) are all square in cross section and have the same cross-sectional size and thickness.
3. The C-shaped shell device with buckling threshold capable of large displacement in tension according to claim 1, wherein the abutment (7) and the middle steel plate (3) are of an integral structure, are positioned in the center of the lower surface of the middle steel plate (3) and are in a cuboid shape, two ends of the abutment are flush with the middle steel plate (3), and spaces are reserved on two sides of the abutment.
4. The C-shaped shell device with the buckling threshold and capable of large displacement under tension as claimed in claim 1, wherein splice plates (6) are welded on the lower surface of the upper steel plate (1) and the upper surface of the middle steel plate (3), screw holes are formed in the splice plates (6), and the C-shaped shell (4) is connected with the upper steel plate (1) and the steel plate (3) through the splice plates (6) by high-strength bolts.
5. The C-shell arrangement with buckling threshold large displaceable in tension according to claim 1, characterized in that the C-shell (4) is made of high strength carbon structural steel.
6. The C-shaped shell device with buckling threshold large displaceable in tension as claimed in claim 1, characterized in that the thickness of the C-shaped shell (4) is 1-3mm, the radius of curvature is 100-200mm, the opening angle is 30-90 °, and the height is 300-600 mm.
7. The C-shaped shell device with buckling threshold and large displacement in tension according to claim 1 is characterized in that the springs (5) are connected with the middle steel plate (3) and the lower steel plate (2) through welding and are uniformly distributed on two sides of the abutment (7).
8. The C-shaped shell device with buckling threshold and large displacement in tension as claimed in claim 7 is characterized in that when the spring (5) is in an initial state, the distance between the lower surface of the abutment (7) and the lower steel plate (2) is 2-3cm, so that the deformation of the device under the action of small wind and small shock is concentrated on the spring (5), and the stress under the action of large wind and large shock is mainly borne by the C-shaped shell (4).
9. The C-shaped shell device with the buckling threshold and capable of large displacement under tension as claimed in claim 1, wherein the upper steel plate (1) and the lower steel plate (2) are both provided with bolt holes, a reinforced concrete column (9) at the height of a floor slab and a core tube shear wall (10) at the equal height are pre-embedded with screws, and the lower steel plate (2) is connected with the core tube shear wall (10) and the upper steel plate (1) is connected with the reinforced concrete column (9) through high-strength bolts.
10. The C-shaped shell device with buckling threshold and large displacement in tension as claimed in claim 9, wherein the reinforced concrete column (9), the core tube shear wall (10), the C-shaped shell seismic isolation layer (11), the reinforced concrete half wall (12) and the wind resistance device (8) form a TMD-like system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111283600.XA CN113818738B (en) | 2021-11-01 | 2021-11-01 | C-shaped shell device with buckling threshold and large displacement in tension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111283600.XA CN113818738B (en) | 2021-11-01 | 2021-11-01 | C-shaped shell device with buckling threshold and large displacement in tension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113818738A true CN113818738A (en) | 2021-12-21 |
| CN113818738B CN113818738B (en) | 2022-11-18 |
Family
ID=78919196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111283600.XA Active CN113818738B (en) | 2021-11-01 | 2021-11-01 | C-shaped shell device with buckling threshold and large displacement in tension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113818738B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1478966A (en) * | 2003-03-05 | 2004-03-03 | 兰州理工大学 | High-rise building vibration isolation system |
| WO2008049836A2 (en) * | 2006-10-25 | 2008-05-02 | Tre G System S.R.L. | Damping device for anti-seismic structures |
| WO2014110582A1 (en) * | 2013-01-14 | 2014-07-17 | Aujaghian Damir | Sliding seismic isolator |
| CN205400217U (en) * | 2016-03-09 | 2016-07-27 | 西安建筑科技大学 | Large deformation C that excels in form shell is from reset structure |
| CN107013074A (en) * | 2017-05-18 | 2017-08-04 | 西安建筑科技大学 | The c-type shell Interlayer seismic isolation device and system of runback bit function are unloaded with threshold value flexing |
| US20180334825A1 (en) * | 2015-06-10 | 2018-11-22 | The Regents Of Teh University Of California | Architected material design for seismic isolation |
| CN213772910U (en) * | 2020-10-20 | 2021-07-23 | 山东科技大学 | Bridge beam supports with cushioning effect |
| CN113431261A (en) * | 2021-08-12 | 2021-09-24 | 郑州航空工业管理学院 | CSIPs-steel combined anti-seismic recoverable column |
-
2021
- 2021-11-01 CN CN202111283600.XA patent/CN113818738B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1478966A (en) * | 2003-03-05 | 2004-03-03 | 兰州理工大学 | High-rise building vibration isolation system |
| WO2008049836A2 (en) * | 2006-10-25 | 2008-05-02 | Tre G System S.R.L. | Damping device for anti-seismic structures |
| WO2014110582A1 (en) * | 2013-01-14 | 2014-07-17 | Aujaghian Damir | Sliding seismic isolator |
| US20180334825A1 (en) * | 2015-06-10 | 2018-11-22 | The Regents Of Teh University Of California | Architected material design for seismic isolation |
| CN205400217U (en) * | 2016-03-09 | 2016-07-27 | 西安建筑科技大学 | Large deformation C that excels in form shell is from reset structure |
| CN107013074A (en) * | 2017-05-18 | 2017-08-04 | 西安建筑科技大学 | The c-type shell Interlayer seismic isolation device and system of runback bit function are unloaded with threshold value flexing |
| CN213772910U (en) * | 2020-10-20 | 2021-07-23 | 山东科技大学 | Bridge beam supports with cushioning effect |
| CN113431261A (en) * | 2021-08-12 | 2021-09-24 | 郑州航空工业管理学院 | CSIPs-steel combined anti-seismic recoverable column |
Non-Patent Citations (1)
| Title |
|---|
| 解江等: "复合材料机身C型柱准静态压溃仿真及失效模式", 《航空材料学报》, vol. 37, no. 02, 1 April 2017 (2017-04-01), pages 73 - 80 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113818738B (en) | 2022-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Rodgers et al. | Performance of a damage‐protected beam–column subassembly utilizing external HF2V energy dissipation devices | |
| CN212613073U (en) | Assembled is from restoring to throne beam column node with pre-compaction dish spring group | |
| US6354047B1 (en) | Columnar structure with earthquake resistance imparted thereto and method of reinforcing the earthquake resistance of a columnar structure | |
| US20140137727A1 (en) | Blast-resistant reinforced cementitious panels and reinforcing structures for use therein | |
| Venkatesan et al. | Finite element analysis (FEA) for the beam-column joint subjected to cyclic loading was performed using ANSYS | |
| Kanchana Devi et al. | Novel non-invasive seismic upgradation strategies for gravity load designed exterior beam-column joints | |
| Zheng et al. | Dynamic performance of angle-steel concrete columns under low cyclic loading-I: Experimental study | |
| CN111561056A (en) | Assembly type self-resetting beam column node with prepressing disc spring group and assembling method | |
| CN109610685B (en) | Double-steel-plate combined shear wall with externally-wrapped pressure-bearing non-tensioned concrete and embedded damping interlayer | |
| CN113818738B (en) | C-shaped shell device with buckling threshold and large displacement in tension | |
| Oswald | Blast testing of energy absorbing connectors for blast resistant design | |
| EP2513390B1 (en) | Construction system for strengthening an existing structure with tension sheets and a respective anchoring device and method therefore | |
| US10900226B1 (en) | System, apparatus and methods for precast architectural panel connections | |
| KR101294289B1 (en) | Buckling restrained brace of dry type, and manufacturing method for the same | |
| JP7081745B2 (en) | Seismic isolation structure | |
| Darani et al. | Application of new resilient slip friction joint for seismic damage avoidance design of rocking concrete shear walls." | |
| CN113802911B (en) | TMD-like structure system based on C-shaped shell shock insulation layer | |
| CN111779154A (en) | Buckling-shearing type metal damper applied to shock insulation layer | |
| KR20120123917A (en) | Concrete block for seismic reinforcement of H-shaped column and seismic reinforcing method using the same | |
| CN112814224B (en) | Construction technology of building wall | |
| JP2008038559A (en) | Vibration control wall | |
| TWI769969B (en) | Joint structure of concrete encased steel composite beams | |
| CN217461012U (en) | Three-dimensional shock insulation system | |
| Watanabe et al. | Seismic strengthening using precast prestressed concrete braces | |
| CN219386848U (en) | Prefabricated component |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |