CN218541079U - Tuned mass type swinging wall frame structure - Google Patents
Tuned mass type swinging wall frame structure Download PDFInfo
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- CN218541079U CN218541079U CN202222303804.1U CN202222303804U CN218541079U CN 218541079 U CN218541079 U CN 218541079U CN 202222303804 U CN202222303804 U CN 202222303804U CN 218541079 U CN218541079 U CN 218541079U
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Abstract
The utility model relates to a civil engineering technical field relates to a harmonious formula of quality sways wall frame structure, specifically is a wall frame structure sways from taking quality Tune (TMD) function. The main structure is divided into a swinging wall and a frame, the swinging wall is hinged with the foundation, and the wall body can realize rigid body swinging in the earthquake process. And part of the frame floors are connected with the swinging wall through rigid chain rods. One or a plurality of free floors are reserved and are not connected with the swinging wall, the free floors are used as a mass Tuning (TMD) part of the whole structure, and the rigidity adjusting mechanism of the free floors is realized by arranging the swinging columns on the free floors, so that the vibration control of the main structure in the earthquake process is realized.
Description
Technical Field
The utility model relates to a civil engineering technical field, in particular to harmonious formula of quality sways wall frame structure.
Background
Earthquake is one of the most important natural disasters, which seriously affects the safety of building structures and the safety of lives and properties of people, and with the progress of society and the development of earthquake-resistant technology of building structures, the ability of the building structures to quickly recover the use function after the earthquake is paid attention by the engineering field. The swinging wall and the frame structure are combined to form a typical and effective recoverable functional structure system. The swinging wall-frame structure enables the wall body to form a swinging mechanism in the earthquake process by loosening the bottom constraint of the shear wall, so that the earthquake motion characteristic and the deformation mode of the traditional frame shear wall structure are changed. The wall that sways can prolong structure cycle on the one hand, reduces structure earthquake and moves the response, and on the other hand sways the wall and has restricted the deformation of frame structure layer, forces each floor to warp and tends to unanimity, reduces the inefficacy risk of earthquake in-process structure. For example: the earthquake-resistant reinforcing and transforming project of the G3 teaching building of the Japan Tokyo university of industry utilizes the original structure configuration, and is additionally provided with the swinging wall component and the mild steel damper, so that the displacement angle of the structure between layers under the action of earthquake is reduced, the distribution is uniform, and the defense setting target which is not damaged under strong earthquake is realized.
At present, the swinging wall frame structure is used for a multi-story structure or a high-rise structure with a lower height, and such a structural form is not seen in the high-rise or super high-rise structure for the following reasons: 1. when the structure height is higher, slenderness ratio is great, the bearing capacity demand to swaing the wall improves, and when structure vertical rigidity distributes inhomogeneous, the wall lateral movement rigidity design degree of difficulty improves, increases to the power response control degree of difficulty of overall structure. 2. Along with the increase of the structure height, the displacement of the top layer of the structure is forced to be obviously increased by the deformation mode of the integral swing, and the requirement of the high-rise structure on deformation is difficult to meet.
Reducing the displacement response of the structure is an effective measure to solve the above problems and can be achieved by mass tuning. Tuned Mass Damper TMD (Tuned Mass Damper) consists of a Mass, a spring and a damping system. The vibration frequency is adjusted to be close to the main structure frequency, and the structure resonance characteristic is changed, so that the shock absorption effect is achieved. For example, a TMD device is adopted in a Shanghai financial center and an International financial center in China, taibei 101 mansion for vibration control. The TMD system is used for the swinging wall frame structure, so that the displacement response of the structure can be further reduced, the structural deformation mode is optimized, and the applicable height of the swinging wall frame structure is further improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a wall frame construction is swayd to harmonious formula of quality has structure deformation control and harmonious shock-absorbing function of quality concurrently. Based on the swinging wall structure and the TMD damping mechanism, the combination of the two damping control mechanisms is realized by reasonably designing the swinging wall-frame structure form, and the earthquake dynamic response of the structure is further reduced.
The specific technical scheme is as follows:
a mass tuning type swinging wall frame structure comprises a swinging wall main body and a frame structure, wherein the bottom of the swinging wall main body is hinged with a foundation unit through a hinged support, and dampers can be arranged at the positions of an inner wall corner and an outer wall corner of the swinging wall main body; the floors of the frame structure are divided into floors connected with the swinging wall and free floors not connected with the swinging wall; the mass tuning of the whole structure is realized through reasonable design of the mass and the lateral movement rigidity of the free floor.
In the frame structure, one or a plurality of floors are not connected with the swinging wall main body and are regarded as free floors, and the free floors exist as independent degrees of freedom in the vibration process.
The upper and lower connecting columns of the free floor adopt swing columns, and the lateral movement rigidity of the free floor is adjusted by reasonably designing the rotation rigidity of the swing columns.
The mass and the lateral movement rigidity of the free floor are reasonably designed, and can be used as the tuning mass of the integral structure to realize the vibration control of the integral structure.
Dampers are arranged between the layers to control the deformation of the free floors.
The main body of the swinging wall is connected with the frame structure by adopting a connecting beam, an ideal hinge or a plastic hinge is arranged at the beam end of the connecting beam, when the ideal hinge is adopted, the connecting beam can be regarded as a chain rod in the design, only horizontal force is transmitted between the main body of the swinging wall and a floor, and shearing force and bending moment are not transmitted; when plastic hinges are arranged at two ends of the connecting beam, the connecting beam can transmit axial force, partial bending moment and shearing force.
The hinged support is located in the middle of the swinging wall main body, and the swinging wall main body can rotate around the hinged support as a rigid body.
The hinged support adopts commodity hinged supports in buildings and bridge structures, or adopts flexible connection nodes in steel structures as supports, and has replaceability.
And a damper is arranged at the position of the hinged support or the corner of the swinging wall body to control the rotation of the rigid body of the swinging wall.
When the free floor is the top layer of the frame structure, only lower connecting columns are arranged, and the lower connecting columns adopt swing columns; when the free floor is a certain layer in the middle of the frame structure, the upper and lower connecting columns of the free floor are swing columns so as to realize a mechanism for adjusting the lateral movement rigidity of the free floor.
Compared with the prior art, the utility model discloses following beneficial technological effect has:
(1) Compare with current wall-frame construction that sways, the utility model provides a tuned part of quality is add to the structure, reduces overall structure's deformation amplitude on the basis to structural deformation mode control, can make overall structure seismic response further optimize.
(2) The structural deformation mode control is combined with the TMD damping mechanism, the structural deformation under the earthquake is more effectively controlled, the applicable height of the swing wall-frame structure can be indirectly improved, and the applicable range of the structure is widened, for example, the swing wall-frame structure is used in a high-rise structure with higher requirement on the deformation under the earthquake.
(3) The utility model discloses in, the realization form of TMD is: the free floors are formed by disconnecting a certain floor or a plurality of floors of the frame structure from the swing wall main body, and then the anti-lateral stiffness of the floor is adjusted by arranging the swing columns in the free floors, so that the frequency of the anti-lateral stiffness is adjusted, and finally the mass tuning of the whole structure is realized. The TMD implementation mechanism utilizes the original structural form to the maximum extent, does not need to independently arrange a TMD device, and reduces the cost.
(4) In addition, according to the concrete form of structural design, the position of the free floor can be reasonably selected, and the specific function of the structure is realized. For example, a free layer is arranged at the position where the rigidity of the frame suddenly changes, so that the influence of vertical irregularity of the frame on the internal force of the swinging wall is reduced, and the design difficulty caused by sudden change of the structural rigidity can be avoided.
Drawings
Fig. 1 shows embodiment 1 of the present invention: the overall structure schematic diagram of the swinging wall-frame structure is shown when the top layer is a free layer;
fig. 2 shows embodiment 2 of the present invention: and when the bottom layer is set to be a free layer, the overall structure schematic diagram of the swing wall-frame structure is shown. Can be used for structures with suddenly changed bottom rigidity, such as large chassis-tower structures.
In the figure, 1, a swinging wall main body; 2. a frame structure; 3. a base unit; 4. a hinged support; 5. a damper; 6. connecting the beams; 7. a free floor; 8. and (5) swinging the column.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings, but the scope of the present invention is not limited to the accompanying drawings.
Example 1
As shown in fig. 1, when the relaxing frame structure is a top layer, the mass tuning type swinging wall frame structure comprises a swinging wall main body 1 and a frame structure 2, wherein the bottom of the swinging wall main body 1 is hinged with a base unit 3 through a hinged support 4, and dampers 5 are respectively arranged at the inner wall corner position and the outer wall corner position of the swinging wall main body 1; the floors of the frame structure 2 are divided into a connecting floor and a free floor 7, and the swinging wall main body 1 is only connected with the connecting floor and disconnected with the free floor 7; the mass tuning of the whole structure is realized by adjusting the lateral movement rigidity of the swinging column 8 of the free floor 7.
The connecting floors are connected with the swinging wall main body 1 through connecting beams 6.
The connecting beam 6 can be regarded as a rigid chain rod, a hinge or a plastic hinge is arranged at the beam end, and when the ideal hinge is arranged at the beam end, the connecting beam only transmits axial force; when the beam ends are provided with plastic hinges, the coupling beams can transmit axial force and partial bending moment.
The hinged support 4 is positioned in the middle of the swing wall main body 1, and the concrete structure can adopt a commodity hinged support in buildings and bridge structures, and can also adopt a flexible connection node in a steel structure as a support, so that the support has replaceability.
In the free floor 7, an energy consumption damper 9 may be provided to control the displacement thereof.
When the free floor 7 is the top layer of the frame structure, only lower connecting columns are arranged, and the lower connecting columns adopt swing columns.
Example 2
As shown in fig. 2, when the easement frame structure is one floor, the difference from embodiment 1 is that the upper and lower connecting columns 8 of the frame structure 2 of the free floor 7 are swing columns.
Claims (10)
1. The utility model provides a wall frame construction is swayd to harmonious formula of quality which characterized in that: the swing wall comprises a swing wall main body (1) and a frame structure (2), wherein the bottom of the swing wall main body (1) is hinged with a foundation unit (3) through a hinged support (4), and dampers (5) can be arranged at the positions of an inner wall corner and an outer wall corner of the swing wall main body (1); the floors of the frame structure (2) are divided into floors connected with the swinging wall main body (1) and free floors (7) not connected with the swinging wall main body (1); the free floor (7) realizes mass tuning of the whole structure through reasonable design of the mass and the lateral movement rigidity of the free floor.
2. The mass-tuned swinging wall frame structure of claim 1, characterized in that: in the frame structure (2), one or a plurality of floors are not connected with the swinging wall main body (1) and are regarded as free floors (7) and exist as independent degrees of freedom in the vibration process.
3. The mass-tuned swinging wall frame structure of claim 2, wherein: the free floor (7) is connected up and down by adopting the swinging column (8), and the adjustment of the lateral movement rigidity of the free floor (7) is realized by reasonably designing the rotation rigidity of the swinging column.
4. The mass-tuned swinging wall frame structure of claim 2, wherein: the mass and the lateral movement rigidity of the free floor (7) are reasonably designed, and can be used as the tuning mass of the integral structure to realize the vibration control of the integral structure.
5. The mass-tuned swinging wall frame structure of claim 1, wherein: energy dissipation dampers (9) are arranged among the layers to control the deformation of the free floor (7).
6. The mass-tuned swinging wall frame structure of claim 1, characterized in that: the swing wall main body (1) is connected with the frame structure (2) through the connecting beam (6), the beam end of the connecting beam (6) is provided with an ideal hinge or a plastic hinge, when the ideal hinge is adopted, the connecting beam (6) can be regarded as a chain rod in the design, only horizontal force is transmitted between the swing wall main body (1) and a floor, and shearing force and bending moment are not transmitted; when plastic hinges are arranged at two ends of the connecting beam (6), the connecting beam can transmit axial force, partial bending moment and shearing force.
7. The mass-tuned swinging wall frame structure of claim 1, wherein: the hinged support (4) is located in the middle of the swinging wall main body (1), and the swinging wall main body (1) can rotate around the hinged support (4) in a rigid body.
8. The mass-tuned swinging wall frame structure of claim 7, wherein: the hinged support (4) adopts a commodity hinged support in a building and bridge structure or adopts a flexible connection node in a steel structure as a support, and has replaceability.
9. The mass-tuned swinging wall frame structure of claim 1, wherein: and a damper (5) is arranged at the position of the hinged support (4) or the corner of the swinging wall main body (1) to control the rotation of the swinging wall rigid body.
10. The mass-tuned swinging wall frame structure of claim 1, wherein: when the free floor (7) is the top layer of the frame structure, only a lower connecting column is arranged, and the lower connecting column adopts a swinging column (8); when the free floor (7) is a certain layer in the middle of the frame structure, the upper connecting column and the lower connecting column of the free floor are swing columns so as to realize a mechanism for adjusting the lateral movement rigidity of the free floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222303804.1U CN218541079U (en) | 2022-08-31 | 2022-08-31 | Tuned mass type swinging wall frame structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222303804.1U CN218541079U (en) | 2022-08-31 | 2022-08-31 | Tuned mass type swinging wall frame structure |
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| CN218541079U true CN218541079U (en) | 2023-02-28 |
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| CN202222303804.1U Active CN218541079U (en) | 2022-08-31 | 2022-08-31 | Tuned mass type swinging wall frame structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853779A (en) * | 2019-01-24 | 2019-06-07 | 重庆大学 | It is a kind of containing swing column and the full swinging structure system and its construction method of waving wall |
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2022
- 2022-08-31 CN CN202222303804.1U patent/CN218541079U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853779A (en) * | 2019-01-24 | 2019-06-07 | 重庆大学 | It is a kind of containing swing column and the full swinging structure system and its construction method of waving wall |
| CN109853779B (en) * | 2019-01-24 | 2023-08-22 | 重庆大学 | Full-swing structure system containing swing column and swing wall and construction method thereof |
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