CN210598288U - Shock-resistant tough factory building structure system comprehensively adopting shock isolation and absorption technology - Google Patents
Shock-resistant tough factory building structure system comprehensively adopting shock isolation and absorption technology Download PDFInfo
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- CN210598288U CN210598288U CN201921016782.2U CN201921016782U CN210598288U CN 210598288 U CN210598288 U CN 210598288U CN 201921016782 U CN201921016782 U CN 201921016782U CN 210598288 U CN210598288 U CN 210598288U
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Abstract
The utility model belongs to the technical field of industry civil engineering structure, a synthesize high performance toughness structural system that utilizes shock insulation and energy dissipation shock attenuation technique to improve factory building anti-seismic performance. An anti-seismic tough factory building structure system comprehensively adopting a shock insulation and absorption technology comprises a large mass ratio tuned mass damper and an energy dissipation sub-frame which are connected to a factory building main body structure. The utility model adopts the buckling-restrained brace to replace part of common steel supporting components, and adopts the damper to replace a common supporting structure system on the structural floor with larger horizontal relative displacement so as to realize the effects of energy dissipation and shock absorption; the coal hopper of the factory building is subjected to shock insulation design by using the shock insulation support, and the motion of the coal hopper under the action of the earthquake is tuned with the motion of the main structure by using the shock insulation support through optimization calculation, so that the tuned mass damper with the large mass ratio is formed. The utility model discloses can be applied to the structural design and the antidetonation reinforcement of high earthquake intensity field underground factory building, also can be applied to other similar industrial structure.
Description
Technical Field
The utility model belongs to the technical field of industry civil engineering structure, a antidetonation toughness factory building structure system is related to, can be applied to the antidetonation reinforcement of factory building antidetonation design and existing factory building.
Background
Earthquake is sudden and difficult to predict, destructive earthquakes are possible to occur at any time, and the earthquakes not only can cause huge casualties and property loss, but also can cause serious secondary disasters. The Wenchuan earthquake in 2008 causes great harm to the society and the economy of China. The earthquake damage shows that the collapse and the damage of the building are main causes of casualties and equipment damage. Therefore, how to improve the earthquake-resistant performance of the engineering structure is an important task in the field of engineering structure research and engineering construction in China.
Depending on the process system requirements, equipment such as coal hoppers in the plant structure are often located higher and these equipment are also heavier. The arrangement mode and other process requirements cause the defects of irregular vertical rigidity of the factory building structure, high structure quality, uneven arrangement, and slightly insufficient rigidity due to the overall structure being soft. Therefore, the horizontal action of an earthquake on the whole plant structure is also very large, particularly in a high-intensity earthquake area, which is one of the main factors influencing the earthquake resistance of the plant structure, and the standing points of the factors are mainly the traditional structural earthquake resistance design theory of resistance, so that the structure has enough rigidity, ductility and bearing capacity to resist the earthquake. Although a method of damping the coal scuttle is proposed, the shock insulation effect is not obvious because the whole industrial factory building structure is soft.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the technical problem that the current factory building structure antidetonation effect is poor, provide an antidetonation toughness factory building structure system. In order to improve the anti-seismic performance of the factory building, a shock insulation support and a viscous damper are used at a coal hopper, shock insulation design is carried out on equipment such as a coal bunker of the factory building, and a large mass ratio tuned mass damper is formed through tuning with a main body structure and is used for absorbing energy in motion under the action of earthquake; in order to avoid damage of a main structural member under the action of an earthquake, a buckling-restrained supporting structure is adopted at a position with larger supporting deformation, the structural rigidity is improved through optimized design, and hysteretic energy consumption is realized by utilizing plastic deformation of a middle restrained yield section, so that the earthquake energy is reduced, and the earthquake resistance of a factory building is improved. In addition, in order to further improve the energy consumption and shock absorption effects, a metal damper such as a mild steel damper is adopted at the position with larger displacement between horizontal layers, the hysteresis deformation under the action of an earthquake is used for consuming earthquake input energy, the damage of the earthquake is reduced, and the function of the main body structure is ensured to be recovered as soon as possible after the earthquake. Through the cooperative work of the large mass ratio tuned mass damper and the energy dissipation sub-frame containing the damper, the shock resistance of the workshop structure is remarkably improved, and the shock resistance toughness is realized.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an anti-seismic tough factory building structure system comprehensively adopting a shock insulation and absorption technology comprises a large mass ratio tuned mass damper (1) and an energy dissipation sub-frame (2) which are connected to a factory building main body structure.
The utility model discloses further improvement lies in: the large mass ratio tuned mass damper (1) comprises a coal hopper (3) and a support system (5); the coal hopper (3) is arranged on the supporting system (5) and is supported by the supporting system (5); a shock insulation layer (4) is arranged between the coal hopper (3) and the support system (5).
The utility model discloses further improvement lies in: the support system (5) is a polygonal plane frame structure (9).
The utility model discloses further improvement lies in: the shock insulation layer (4) comprises a shock insulation support (10) and a horizontal limiting device (11); the shock insulation support (10) is arranged on each side of the polygonal plane frame structure (9); the bottom end of the cylindrical section of the coal hopper (3) is provided with steel supports (21), and each steel support (21) is correspondingly pressed on one shock insulation support (10); the horizontal limiting device (11) is arranged between the polygonal plane frame structure (9) and the main structure of the plant.
The utility model discloses further improvement lies in: the number of the shock insulation supports (10) is the same as the number of the sides of the polygonal plane frame structure (9), or is integral multiple of the number of the sides of the polygonal plane frame structure (9).
The utility model discloses further improvement lies in: the horizontal limiting device (11) comprises a viscous damper (12) and a force transmission connecting component (13); one end of the viscous damper (12) is connected with the coal hopper (3) through one of the steel supports, and the other end is connected with the force transmission connecting component (13); the force transmission connecting component (13) is fixed on the corresponding frame beam of the main structure of the factory building.
The utility model discloses further improvement lies in: each two viscous dampers (12) share a force transmission connecting component (13); meanwhile, the other ends of every two viscous dampers (12) are hinged on the same steel support (21).
The utility model discloses further improvement lies in: the shock insulation support (10) is a rubber support or a friction pendulum support or a combination of the rubber support and the friction pendulum support.
The utility model discloses further improvement lies in: the force transmission connecting component (13) is a profile steel short column, and the force transmission connecting component (13) is fixedly connected with the frame beam by bolts or welding; the force transmission connecting components (13) are symmetrically arranged in the middle of the frame beams parallel to the longitudinal direction and the transverse direction of the main structure of the factory building.
The utility model discloses further improvement lies in: the energy dissipation subframe (2) containing the damper comprises an energy dissipation damper (7) and a support member (8) connecting the energy dissipation damper (7) with a main structure of a factory building.
The utility model discloses further improvement lies in: the energy dissipation damper adopts a buckling-restrained brace (14) or a metal damper (18).
The utility model discloses further improvement lies in: the buckling-restrained brace (14) comprises an outer covering component (19) and an energy-consuming core plate (20); the outer covering component (19) is a round steel pipe or a square steel pipe and wraps the energy consumption core plate (20).
The utility model discloses further improvement lies in: mortar or other materials with strength lower than that of steel are filled between the energy consumption core plate (20) and the outer coating component (19).
The utility model discloses further improvement lies in: the metal damper (18) is formed by connecting two connecting cover plates (15) and an energy dissipation core material through bolts; comprises a shearing type mild steel damper and a bending type mild steel damper; the lower layer of the plant main structure where the coal hopper is positioned and the bottom layer of the plant main structure are arranged at positions with large deformation.
The utility model discloses further improvement lies in: the energy dissipation core material is an energy dissipation soft steel core plate (16) or an energy dissipation soft steel element (17).
The utility model discloses further improvement lies in: the supporting member (8) is made of section steel and is connected with a frame beam of a main structure of the factory building through bolts or welding or is connected with adjacent frame columns.
The utility model relates to a comprehensive utilization big mass ratio harmonious mass damper, the sub-frame technique of energy dissipation improve the toughness structural system of power plant main building anti-seismic performance. The coal bucket of a factory building is subjected to shock insulation design by using a shock insulation support and a viscous damper, and is tuned with a main body structure to form a tuned mass damper with a large mass ratio; and the buckling-restrained brace is adopted to replace part of the supporting members, and the energy dissipation supporting device taking the damper as the core is used at the lower layer of the plant main structure where the coal hopper is located and the position where the bottom layer of the plant main structure is deformed greatly, so that an energy dissipation sub-frame is formed, and the effects of energy dissipation and shock absorption are achieved. For the working condition of small vibration, the coal hopper generates reverse inertia force to the main plant structure in the vibration process, and counteracts the forward inertia force acting on the main plant structure, so that the vibration absorption function of the tuned mass damper is realized; to the well shake with big shake operating mode, great deformation and make rigidity reduce probably appear in the factory building structure main frame, the effect of the buckling restrained brace of the sub-frame of energy dissipation and metal damper will be prominent: the working section of the steel core is buckled after being pressed, at the moment, the sleeve can be used as a restraining component to limit buckling deformation of the steel core, and the energy dissipation and shock absorption functions of buckling-restrained brace metal yielding are realized; the additional damping provided by the hysteretic deformation of the metal damper during the action of the earthquake to the structure can cut down the huge energy generated by the earthquake.
Compared with the prior art, the utility model discloses an it separates shock-absorbing technique's antidetonation toughness factory building structure system to synthesize the adoption has following beneficial effect:
after an anti-seismic tough plant structure system is adopted, on one hand, the self-vibration frequency of the substructures of the coal buckets and other industrial equipment can be close to the vibration excitation frequency of the main structure of the plant as much as possible by reasonably arranging the vibration isolation support, so that when the main structure vibrates due to an earthquake, the substructures generate an inertia force with the direction opposite to the vibration direction of the main structure to act on the main structure, the reaction attenuation of the main structure is controlled, and the anti-seismic effect of the tuned mass damper is realized; on the other hand, in order to prevent danger caused by large deformation, the viscous damper is arranged at the coal hopper, and the damper is driven to work by utilizing the relative displacement between the coal hopper and the frame beam, so that the motion amplitude of the coal hopper is limited, the additional damping of the structure is improved, meanwhile, the shearing deformation of the shock insulation support is reduced, the durability of the shock insulation support can also be improved, and the service life is prolonged. The buckling-restrained energy-dissipation brace is added at the position of the brace which is easy to buckle and deform, the buckling-restrained energy-dissipation brace is prevented from reducing the structural rigidity by utilizing the buckling and consumption seismic action of the inner core of the steel brace, and the steel brace can resist larger seismic action as a first anti-seismic defense line, so that the damage of the seismic action to the plant column is reduced or even eliminated, and the energy-dissipation performance of the whole structure of the plant is improved; in addition, the metal damper is used at the position of some supports, the structural rigidity can be improved, and meanwhile, the additional damping provided by the metal damper can reduce the damage caused by earthquake action.
Drawings
FIG. 1 is a vertical view of the anti-seismic tough factory building structural system of the utility model which comprehensively adopts the shock insulation and absorption technology;
FIG. 2 is a cross-sectional view of a high mass ratio tuned mass damper;
figure 3 is an elevational view of the energy dissipating subframe;
FIG. 4 is a side construction view of the buckling restrained brace;
FIG. 5 is a side construction view of a shear type mild steel damper;
fig. 6 is a side configuration view of a bending type mild steel damper.
In the figure: 1. a large mass ratio tuned mass damper; 2. an energy-dissipating subframe containing a damper; 3, a coal hopper; 4. a seismic isolation layer; 5. a coal hopper support system; 6. a body structure; 7. an energy dissipation damper; 8. a support member; 9. a polygonal planar frame structure; 10. a shock insulation support; 11. a horizontal limiting device; 12. a viscous damper; 13. a force transfer connection member; 14. a buckling restrained brace; 15. connecting the cover plate; 16. energy dissipation mild steel core plate 17, energy dissipation mild steel element; 18. a metal damper; 19. an outer cover member; 20. an energy consumption core board; 21. and (5) a steel support.
Detailed Description
The invention will be illustrated and described in detail below with reference to the figures and examples.
Embodiment 1 as shown in fig. 1, 2 and 3, the anti-seismic tough factory building structural system comprehensively adopting the shock insulation and absorption technology of the embodiment mainly comprises a large mass ratio tuned mass damper 1 and an energy dissipation subframe 2 containing the damper, which are connected with a main structure of the factory building.
The coal scuttle device of the thermal power plant is designed into a large-mass-ratio tuned mass damper 1 through design, and mainly comprises a coal scuttle 3, a shock insulation layer 4 and a support system 5. The coal hopper shock insulation layer 4 comprises a horizontal shock insulation support 10 and a horizontal limiting device 11. The support system 5 comprises a polygonal planar frame structure 9, the number of sides of the polygonal planar frame structure 9 is determined according to the specific situation, and the polygonal planar frame structure 9 is octagonal in the embodiment, as shown in fig. 3. Each side of the polygonal plane frame structure 9 is respectively fixed on the frame beam of the plant main structure 6 corresponding to each side; a horizontal shock insulation support 10 is arranged in the middle of each side of the polygonal plane frame structure 9; the bottom end of the cylindrical section of the coal hopper 3 is provided with steel supports 21, and each steel support 21 is correspondingly pressed on 1 horizontal shock insulation support 10, so that the coal hopper 3 is supported on the polygonal plane frame structure 9. The number of the horizontal shock supports 10 is the same as that of the polygonal plane frame structures 9, or is integral multiple of that of the polygonal plane frame structures 9. The specific number of horizontal shock mounts 10 is dependent on the specific need. The vibration isolation support 10 can be a rubber support or a friction pendulum support or a combination of the rubber support and the friction pendulum support.
As shown in fig. 3, the horizontal stop 11 comprises a viscous damper 12 and a force-transmitting connecting member 13. One end of the viscous damper 12 is hinged with a steel support 21 on the coal hopper 3, and the other end is hinged with a force transmission connecting component 13 on a frame beam of the corresponding factory building main body structure 6; the force transmission connecting component 13 and the frame beam are connected or welded and fixed through a high-strength bolt. Each two viscous dampers 12 share one force-transmitting connecting member 13. Meanwhile, the other ends of every two viscous dampers 12 are hinged on the same steel support 21. The fixed position of the force-transmitting connecting member 13 corresponds to the steel support 21 without the articulated viscous damper 12. The specific number of viscous dampers 12 should be determined according to the number of seismic isolation mounts 10 actually used.
As shown in fig. 1, an energy-dissipating sub-frame 2 including a damper is provided on a plant main structure 6, and the energy-dissipating sub-frame 2 including a damper includes an energy-dissipating damper 7 and a support member 8 connecting the energy-dissipating damper 7 and the plant main structure 6. The energy-dissipating dampers 7 are divided into two types, a buckling restrained brace 14 and a metal damper 18. Wherein, the buckling-restrained supporting piece 14 and the metal damper 18 are arranged at the position where buckling deformation is easy to occur on the main structure of the factory building. Buckling restrained support 14 is fixed on factory building body structure 6 through supporting member 8. The supporting member 8 is a short steel column, and is connected with a frame beam of the plant main structure 6 by adopting bolt connection or welding, or is connected with an adjacent frame column.
As shown in fig. 4, the buckling-restrained brace 14 includes an outer covering member 19 and an energy-dissipating core plate 20. The outer covering member 19 of the energy-consuming core plate 20 is generally a round steel tube or a square steel tube, and mortar or other materials with strength lower than that of steel materials are generally filled between the energy-consuming core plate 20 and the outer covering steel tube. The energy dissipation core plate 20 in this embodiment is formed by welding criss-cross steel plates.
The buckling-restrained brace 14 has the same mechanical properties of tension and compression, can avoid the traditional brace from buckling under compression, and is arranged at part of the main structure of the factory building.
As shown in fig. 5 and 6, the metal damper 18 having an energy-dissipating shock-absorbing effect mainly includes two types of shear type mild steel dampers and bending type mild steel dampers. The shearing type mild steel damper is mainly formed by connecting two connecting cover plates 15 and an energy-consuming mild steel core plate 16 through bolts. The bending type mild steel damper is mainly formed by connecting two connecting cover plates 15 and a plurality of energy dissipation mild steel elements 17 which are arranged in parallel through bolts. The metal dampers 18 are connected to the frame beams of the plant body 6 or to the adjacent frame columns by means of the support members 8. And the coal hopper is arranged at a position with larger deformation at the lower layer of the plant main structure and the bottom layer of the plant main structure, where the coal hopper has obvious interlayer displacement between floors.
The embodiments described above are intended to facilitate one of ordinary skill in the art to understand and practice the invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the embodiments herein, and those skilled in the art should understand that modifications and alterations made without departing from the scope of the present invention are within the protection scope of the present invention.
Claims (16)
1. The utility model provides a synthesize and adopt shock-proof toughness factory building structural system who separates shock-absorbing technology which characterized in that: the large mass ratio tuned mass damper comprises a large mass ratio tuned mass damper (1) connected to a main structure of a factory building and an energy dissipation subframe (2) containing the damper.
2. The anti-seismic and tough factory building structural system comprehensively adopting the shock insulation and absorption technology according to claim 1, is characterized in that: the large mass ratio tuned mass damper (1) comprises a coal hopper (3) and a support system (5); the coal hopper (3) is arranged on the supporting system (5) and is supported by the supporting system (5); a shock insulation layer (4) is arranged between the coal hopper (3) and the support system (5).
3. The anti-seismic tough factory building structural system comprehensively adopting the shock insulation and absorption technology according to claim 2, which is characterized in that: the support system (5) is a polygonal plane frame structure (9).
4. The anti-seismic tough factory building structural system comprehensively adopting the shock insulation and absorption technology according to claim 3, which is characterized in that: the shock insulation layer (4) comprises a shock insulation support (10) and a horizontal limiting device (11); the shock insulation support (10) is arranged on each side of the polygonal plane frame structure (9); the bottom end of the cylinder section of the coal hopper (3) is provided with steel supports (21), and each steel support (21) is correspondingly pressed on one shock insulation support (10); the horizontal limiting device (11) is arranged between the polygonal plane frame structure (9) and the plant main structure (6).
5. The anti-seismic tough factory building structural system comprehensively adopting the shock insulation and absorption technology according to claim 4, which is characterized in that: the number of the shock insulation supports (10) is the same as the number of the sides of the polygonal plane frame structure (9), or is integral multiple of the number of the sides of the polygonal plane frame structure (9).
6. The anti-seismic tough factory building structural system comprehensively adopting the shock insulation and absorption technology according to claim 4, which is characterized in that: the horizontal limiting device (11) comprises a viscous damper (12) and a force transmission connecting component (13); one end of the viscous damper (12) is connected with the coal bucket (3) through one of the steel supports (21), and the other end is connected with the force transmission connecting component (13); the force transmission connecting component (13) is fixed on the corresponding frame beam of the main structure of the factory building.
7. The anti-seismic tough factory building structural system comprehensively adopting the shock insulation and absorption technology according to claim 6, which is characterized in that: each two viscous dampers (12) share a force transmission connecting component (13); meanwhile, the other end of each viscous damper (12) is hinged on the same steel support (21).
8. The anti-seismic and tough factory building structural system comprehensively adopting the shock insulation and absorption technology according to any one of claims 4 to 7, which is characterized in that: the shock insulation support (10) is a rubber support or a friction pendulum support or a combination of the rubber support and the friction pendulum support.
9. The anti-seismic tough factory building structural system comprehensively adopting the shock insulation and absorption technology according to claim 6 or 7, which is characterized in that: the force transmission connecting component (13) is a profile steel short column, and the force transmission connecting component (13) is fixedly connected with the frame beam by bolts or welding; the force transmission connecting components (13) are symmetrically arranged in the middle of the frame beams parallel to the longitudinal direction and the transverse direction of the main structure of the factory building.
10. The anti-seismic and tough factory building structural system comprehensively adopting the shock insulation and absorption technology according to claim 1, is characterized in that: the energy dissipation subframe (2) containing the damper comprises an energy dissipation damper (7) and a support member (8) connecting the energy dissipation damper (7) with a main structure of a factory building.
11. The anti-seismic tough factory building structural system comprehensively adopting the shock insulation and absorption technology according to claim 10, which is characterized in that: the energy dissipation damper adopts a buckling-restrained brace (14) or a metal damper (18).
12. The anti-seismic tough factory building structural system comprehensively adopting the shock insulation and absorption technology according to claim 11, which is characterized in that: the buckling-restrained brace (14) comprises an outer covering component (19) and an energy-consuming core plate (20); the outer covering component (19) is a round steel pipe or a square steel pipe and wraps the energy consumption core plate (20).
13. The anti-seismic tough factory building structural system comprehensively adopting the shock insulation and absorption technology according to claim 12, which is characterized in that: mortar is filled between the energy consumption core plate (20) and the outer coating component (19).
14. The anti-seismic tough factory building structural system comprehensively adopting the shock insulation and absorption technology according to claim 11, which is characterized in that: the metal damper (18) is formed by connecting two connecting cover plates (15) and an energy dissipation core material through bolts; comprises a shearing type mild steel damper and a bending type mild steel damper; the coal hopper is arranged on the lower layer of the plant main structure and the bottom layer of the plant main structure, wherein the coal hopper is positioned on the lower layer of the plant main structure, and the displacement between the floors is obvious.
15. The anti-seismic tough factory building structural system comprehensively adopting the shock insulation and absorption technology according to claim 14, which is characterized in that: the energy dissipation core material is an energy dissipation soft steel core plate (16) or an energy dissipation soft steel element (17).
16. The anti-seismic tough factory building structural system comprehensively adopting the shock insulation and absorption technology according to any one of claims 10 to 15, wherein: the supporting member (8) is made of section steel and is connected with a frame beam of a main structure of the factory building through bolts or welding or is connected with adjacent frame columns.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259205A (en) * | 2019-07-02 | 2019-09-20 | 山东电力建设第三工程有限公司 | A kind of comprehensive antidetonation toughness mill construction system using every cushion technique |
| CN113931312A (en) * | 2021-12-17 | 2022-01-14 | 北京科技大学 | Gravity and lateral force separated assembly type energy dissipation structure system and design method |
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2019
- 2019-07-02 CN CN201921016782.2U patent/CN210598288U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259205A (en) * | 2019-07-02 | 2019-09-20 | 山东电力建设第三工程有限公司 | A kind of comprehensive antidetonation toughness mill construction system using every cushion technique |
| CN113931312A (en) * | 2021-12-17 | 2022-01-14 | 北京科技大学 | Gravity and lateral force separated assembly type energy dissipation structure system and design method |
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