CN113685068A - Frame upper door type steel frame factory building capable of resisting seismic wave impact - Google Patents
Frame upper door type steel frame factory building capable of resisting seismic wave impact Download PDFInfo
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- CN113685068A CN113685068A CN202110979540.9A CN202110979540A CN113685068A CN 113685068 A CN113685068 A CN 113685068A CN 202110979540 A CN202110979540 A CN 202110979540A CN 113685068 A CN113685068 A CN 113685068A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
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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
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0235—Anti-seismic devices with hydraulic or pneumatic damping
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/024—Structures with steel columns and beams
Abstract
The invention relates to an earthquake-resistant steel structure factory building, in particular to a frame upper door type steel frame factory building capable of resisting earthquake wave impact. The bottom reinforcing longitudinal girder is respectively arranged at the bottoms of the left side wall structure and the right side wall structure and is provided with a bottom sliding groove, a left energy dissipation supporting base used for supporting the left side wall structure, and a right energy dissipation supporting base used for supporting the right side wall structure; the left and right energy dissipation support bases comprise base boxes, supporting units, a plurality of torsion bar energy dissipation units, a plurality of left hydraulic energy dissipation units, a plurality of right hydraulic energy dissipation units, a plurality of front hydraulic buffer units and a plurality of rear hydraulic buffer units, wherein the top of each base box is provided with a large opening, the supporting units are arranged in the base boxes, and the left and right hydraulic energy dissipation units, the front hydraulic buffer units and the rear hydraulic buffer units are arranged around the supporting units. The invention absorbs the shaking energy of the factory building layer by layer through the multilayer energy absorption system, and limits the shaking amplitude and frequency of the factory building within an acceptable range, so as to ensure that the factory building can be free from small shaking, repairable in middle shaking and free from big shaking.
Description
Technical Field
The invention relates to an earthquake-resistant steel structure factory building, in particular to a frame upper door type steel frame factory building capable of resisting earthquake wave impact.
Background
Earthquakes are random vibrations caused by earth crust motion, and can be divided into the following categories according to formation reasons: construction earthquakes, detonation earthquakes, and collapse earthquakes. The greatest seismic damage is also known as tectonic earthquakes, of which 85% to 90% of the world's earthquakes belong. Faults in geological layers cause a dislocation, which causes partial strain of the crust in a certain range to be released in a short time, and the random vibration generated thereby is called a tectonic earthquake. The strain energy is transmitted to the surroundings in the form of stress waves, and ground motion is caused in the transmission process, so that the building randomly shakes all around, and further the building collapses, and personnel and property loss is caused.
Traditional industrial factory building adopts reinforced concrete structure and masonry structure usually, but this type of factory building construction cycle is long, to the requirement height of basis, and difficult making large-span workshop. In addition, the plant has the defect of poor earthquake resistance, and the integrity of the plant is easily lost due to insufficient strength of components and connecting nodes and the like in an earthquake. In contrast, the steel structure factory building has the advantages of high rigidity, high bearing capacity, light dead weight, good anti-seismic performance and other excellent structural performances, high industrial manufacturing degree, short construction period, less environmental pollution, flexible large space separation, easiness in modification and reinforcement, steel recovery and the like, so that the steel structure factory building is more and more widely applied to modern large-scale industrial buildings.
Fig. 1 shows a frame upper portal steel frame factory building, which is composed of a lower frame and a top portal steel frame and is a steel frame factory building with wide application. The bidirectional rigidity-adjustable steel plate has the advantages of uniform bidirectional rigidity, good integrity, adaptability to complex process equipment arrangement and the like. When dealing with earthquakes, the earthquake-resistant support is strong enough to resist medium and strong earthquakes, but when facing strong earthquakes, the support still has little force. Therefore, the main structure of the factory building is damaged and even collapses, so that equipment is damaged or workers are injured and killed, and safety accidents are caused. Therefore, in order to ensure the safety of personnel and maintain the property of enterprises, the earthquake resistance of the frame upper door type steel frame factory building must be further enhanced, and the small earthquake, the medium earthquake and the large earthquake are ensured to be not damaged.
At present, there are two kinds of thinking in the shock resistance of portal steel frame factory building on the strengthening frame: firstly, the strength of the steel plate is continuously improved, and the strength of the steel plate is continuously improved, so that the thickness of the steel plate is increased, or the steel with higher strength is adopted, and the construction difficulty and the cost are exponentially increased; secondly, a huge spring is used for supporting a factory building, but the huge spring is high in cost.
Disclosure of Invention
The invention provides a portal steel frame factory building on a frame, which can resist earthquake wave impact and aims to enhance the earthquake resistance of the portal steel frame factory building on the frame and ensure that small earthquake is not damaged, middle earthquake can be repaired and large earthquake is not fallen;
in addition, the invention also aims to provide an anti-seismic frame upper door type steel frame factory building with moderate price and low construction difficulty.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the invention provides a portal steel frame factory building on a frame capable of resisting seismic wave impact, which comprises a lower frame and a top portal steel frame, wherein the lower frame comprises a left side wall structure, a right side wall structure and a plurality of platform structures, and the left side wall structure and the right side wall structure respectively comprise a plurality of steel frame columns. The method is characterized in that:
the energy dissipation device is characterized by further comprising bottom reinforcing longitudinal girders with bottom sliding grooves, a left energy dissipation supporting base and a right energy dissipation supporting base, wherein the bottom reinforcing longitudinal girders are arranged at the bottoms of the left side wall structure and the right side wall structure respectively and used for supporting the left side wall structure and the right side wall structure respectively.
The left and right energy dissipation support bases comprise base boxes, supporting units, a plurality of torsion bar energy dissipation units, a plurality of left hydraulic energy dissipation units, a plurality of right hydraulic energy dissipation units, a plurality of front hydraulic buffer units and a plurality of rear hydraulic buffer units, wherein the top of each base box is provided with a large opening, the supporting units are arranged in the base boxes, and the left and right hydraulic energy dissipation units, the front hydraulic buffer units and the rear hydraulic buffer units are arranged around the supporting units.
The top of the supporting unit is provided with a supporting slideway matched with the bottom sliding groove; one end of the torsion bar energy dissipation unit is fixed on the steel frame column, and the other end of the torsion bar energy dissipation unit is fixed on the supporting unit. One end of the left hydraulic energy dissipation unit is fixed on the left side wall of the base box body, and the other end of the left hydraulic energy dissipation unit is arranged on the supporting unit in a sliding mode. One end of the right hydraulic energy dissipation unit is fixed on the right side wall of the base box body, and the other end of the right hydraulic energy dissipation unit is arranged on the supporting unit in a sliding mode. The front hydraulic buffer unit is fixed on the front side wall of the base box body, the rear hydraulic buffer unit is fixed on the rear side wall of the base box body, and piston rods of the front hydraulic buffer unit and the rear hydraulic buffer unit are tightly attached to the support unit.
The supporting unit can slide along the bottom surface of the base box body under the obstruction of the left and right hydraulic energy dissipation units and the front and rear hydraulic buffer units.
Furthermore, a plurality of reinforced brackets I and a plurality of reinforced brackets II are arranged on the bottom reinforced stringer.
Furthermore, the supporting unit comprises a bottom plate, a supporting box body with an inverted T-shaped longitudinal section, a plurality of reinforcing box bodies and a plurality of T-shaped reinforcing brackets, wherein the top of each reinforcing box body is provided with a convex block, and the convex block is provided with a fixing hole.
Furthermore, the bottom surface of the base box body, the lower surface of the bottom plate, the inner surface of the bottom sliding groove and the outer surface of the supporting sliding way are frosted surfaces.
Furthermore, the torsion bar energy dissipation unit comprises a fixed bar, a swing arm and a torsion bar, wherein one end of the swing arm is rotatably connected with the fixed bar through a bearing, and the other end of the swing arm is fixedly connected with the torsion bar.
Furthermore, the left hydraulic energy dissipation unit comprises a large hydraulic cylinder, a hydraulic cylinder frame I, a piston rod frame I, a front sliding groove I, a rear sliding groove I, a left sliding groove I, a right sliding groove I, a left sliding groove II, a right sliding groove II, sliding grooves are formed in the side wall of the hydraulic cylinder frame I, the side wall of the piston rod frame I is embedded into the sliding grooves of the hydraulic cylinder frame I and can slide left and right, and energy absorption structures are arranged on two sides of the piston rod frame I.
Further, the energy absorbing structure comprises a hollow cylindrical shell, a plurality of buffer plates and an internal buffer head.
Furthermore, the right hydraulic energy dissipation unit comprises four small hydraulic cylinders, two hydraulic cylinder frames II, two piston rod frames II and a front sliding groove and a rear sliding groove II.
Furthermore, the large hydraulic cylinder, the small hydraulic cylinder, the front hydraulic buffer unit and the rear hydraulic buffer unit all comprise a pressure-resistant barrel, a piston rod and a piston.
The invention achieves the following beneficial effects:
(1) the invention has a plurality of layers of energy absorption systems, the first layer of energy absorption system is friction energy absorption, and because the invention is a frame upper door type steel frame factory building, the self weight is larger, and in addition, the bottom surface of the base box body and the lower surface of the bottom plate are frosted surfaces, a great friction force is provided between the support module and the base box body. Most of the energy of the shaking plant is absorbed by the first-layer energy absorption system.
The energy-absorbing system on the second layer is a left hydraulic energy-dissipating unit, a right hydraulic energy-dissipating unit, a front hydraulic buffering unit and a rear hydraulic buffering unit, the structures can further absorb the shaking energy of the plant, the plant can be limited, and the phenomenon that the moving distance of the plant is too large under the action of an earthquake to cause casualties is prevented.
The third layer of energy absorption system is a torsion bar energy dissipation unit, can further absorb the energy released when the plant shakes forwards and backwards, reduces the amplitude of shaking forwards and backwards, and prevents the damage of the plant structure.
The invention absorbs the shaking energy of the factory building layer by layer through the multilayer energy absorption system, and limits the shaking amplitude and frequency of the factory building within an acceptable range, so as to ensure that the factory building can be free from small shaking, repairable in middle shaking and free from big shaking.
In addition, the multi-layer energy absorption system is simple in structure, moderate in construction difficulty and low in cost, and is suitable for large-scale popularization to improve the shock resistance of the frame upper door type steel frame factory building.
(2) The bottom of the side wall structure is provided with the bottom reinforcing longitudinal girder, so that the integral strength of the side wall structure can be increased, and the damage of components in an earthquake can be prevented. On the other hand, the bottom strengthening longitudinal girders are also connection links of the frame factory building and the energy dissipation earthquake-resistant structure, and the frame factory building is limited and fixed on the energy dissipation earthquake-resistant structure.
(3) The bottom surface of the base box body, the lower surface of the bottom plate, the inner surface of the bottom sliding groove and the outer surface of the supporting sliding way are frosted surfaces, so that the friction between the bottom surface of the base box body and the lower surface of the bottom plate and the friction between the inner surface of the bottom sliding groove and the outer surface of the supporting sliding way are greatly improved, the energy dissipation supporting base can absorb energy better during an earthquake, and the shaking of a factory building is reduced.
(4) The torsion bar energy dissipation unit is adopted, the amplitude and the frequency of the front and back shaking of the steel frame factory building are limited, and the damage to a main body structure or the overlarge displacement caused by the overlarge amplitude and frequency of the shaking are prevented. Particularly, when the steel frame factory building rocks along the fore-and-aft direction, the torsion bar will twist and bend under the drive of swing arm, and then absorb a large amount of energy to produce elastic force, hinder rocking of steel frame factory building with this.
(5) The energy absorption structure provided by the invention is provided with a plurality of layers of energy absorption structures such as the buffer plate and the reinforcing ribs, can absorb energy in sequence according to different collision strengths, has a good energy absorption effect, and can effectively slow down the shaking of a steel frame factory building.
Drawings
FIG. 1 is a schematic diagram of a conventional frame-mounted steel frame factory building.
FIG. 2 is a schematic view of the main structure of the frame upper door steel frame factory building of the present invention; wherein the x-axis represents the longitudinal, i.e., front-to-back, direction; the y-axis represents the lateral, i.e., left-right, direction; the z-axis represents the up-down direction.
FIG. 3 is an enlarged view of a portion of the bottom stiffening stringer.
Figure 4 is a schematic view of the structure of the energy dissipation support base.
Fig. 5 is a schematic structural view of the support unit.
Fig. 6 is a schematic structural view of the torsion bar energy dissipation unit.
Figure 7 is a schematic diagram of the torsion bar energy dissipation unit when installed.
Fig. 8 is a schematic structural diagram of the left hydraulic energy dissipation unit.
FIG. 9 is a cross-sectional view of an energy absorbing structure.
Fig. 10 is a structural schematic diagram of the right hydraulic energy dissipation unit.
In the figure, 1, a top layer portal steel frame; 2. a lower frame; 21a, left sidewall structure; 21b, a right sidewall structure; 211. a steel frame column; 22. a platform structure 221, a platform support column; 3. a bottom stiffening stringer; 31. a reinforcing toggle plate I; 32. a reinforcing toggle plate II; 33. a bottom chute; 4a, a left energy dissipation support base; 4b, a right energy dissipation support base; 41. a base box body; 42. a support unit; 421. a base plate; 422. supporting the box body; 4221. a support slide; 423. reinforcing the box body; 4231. a bump; 424. a T-shaped reinforcing toggle plate; 43. a torsion bar energy dissipation unit; 431. fixing the rod; 432. swinging arms; 433. a torsion bar; 44. a left hydraulic energy dissipation unit; 441. a large hydraulic cylinder; 442. a hydraulic cylinder frame I; 443. a piston rod frame I; 444. a front chute and a rear chute; 445. a left slideway and a right slideway I; 446. a left slideway and a right slideway II; 45. a right hydraulic energy dissipation unit; 451. a small hydraulic cylinder; 452. a hydraulic cylinder frame II; 453. a piston rod frame II; 454. a front chute and a rear chute II; 46a, a front hydraulic buffer unit; 46b, a rear hydraulic buffer unit; 5. an energy absorbing structure; 51. a hollow cylindrical housing; 511. reinforcing ribs; 52. a buffer plate; 53. an internal buffer head; 54. a buffer shaft; 541. and (4) a cutter.
Detailed Description
To facilitate an understanding of the present invention by those skilled in the art, specific embodiments thereof are described below with reference to the accompanying drawings.
The main purpose of the invention is to enhance the anti-seismic performance of the frame upper door type steel frame factory building, so that the shaking amplitude and frequency of the factory building during earthquake can be kept within an acceptable range, thereby reducing property loss and casualties. And the door type steel frame factory building on the frame can be ensured to be free from damage due to small earthquake, repairable due to middle earthquake and free from falling due to large earthquake after the earthquake is finished.
Therefore, the invention provides a frame upper door type steel frame factory building capable of resisting seismic wave impact, which mainly comprises two parts: steel frame factory building located above ground and energy dissipation earthquake-resistant structure located below ground.
Referring to fig. 2 (only the strong structure of the door-type steel frame factory building on the frame is shown in the figure), the steel frame factory building comprises a lower frame 2 and a top layer door-type steel frame 1, and the top layer door-type steel frame 1 is fixed on the top of the lower frame 2. The lower frame 2 comprises a left side wall structure 21a, a right side wall structure 21b, a plurality of platform structures 22 and a plurality of platform support columns 221, wherein the left side wall structure 21a and the right side wall structure 21b are enclosure walls of a steel frame factory building. The platform structure 22 is disposed between the left sidewall structure 21a and the right sidewall structure 21b, and divides the steel frame plant into different layers. The platform support columns 221 are disposed on the lower surface of the platform structure 22, and the platform support columns 221 are not fixed to the ground and are used for assisting in supporting the platform structure 22. Wherein, left and right side wall structure (21a, 21b) all include a plurality of steel frame posts 211, and the interval between two adjacent steel frame posts 211 is the same, steel frame posts 211 are the main bearing structure of steel frame factory building.
The energy dissipation earthquake-proof structure is the key point for enhancing earthquake resistance and is the core of the invention, and comprises a bottom reinforcing longitudinal girder 3 with a bottom sliding groove 33, a left energy dissipation supporting base 4a for supporting the left side wall structure 21a and a right energy dissipation supporting base 4b for supporting the right side wall structure 21b, which are respectively arranged at the bottoms of the left side wall structure (21a) and the right side wall structure (21 b).
Fig. 3 shows a concrete structure of the bottom reinforced stringer 3 and a connection manner with the steel frame column 211, the bottom reinforced stringer 3 extends from one end to the other end of the side wall structure, and the bottom reinforced stringer 3 serves as a connection link of a frame factory building and an energy dissipation anti-seismic structure to play a role in limiting and fixing; on the other hand, to reinforce the bottom strength of the sidewall structure. In order to increase the overall strength of the bottom reinforced stringer 3, a plurality of reinforced toggle plates I31 and a plurality of reinforced toggle plates II 32 are arranged on the bottom reinforced stringer 3. The reinforced toggle plates I31 and II 32 are symmetrically arranged on two sides of the bottom reinforced longitudinal girder 3, the reinforced toggle plates I31 are strong toggle plates and are used for enhancing the structural strength of the bottom reinforced longitudinal girder 3 on one hand, and are used for connecting and fixing the steel frame columns 211 and the bottom reinforced longitudinal girder 3 on the other hand, so that the steel frame columns 211 and the bottom reinforced longitudinal girder 3 are prevented from being disconnected in an earthquake. The reinforced toggle plates II 32 are weak toggle plates and are used for simply enhancing the structural strength of the bottom reinforced stringer 3, and the reinforced toggle plates II 32 are arranged between two adjacent reinforced toggle plates I31.
Fig. 4 shows a concrete structure of an energy dissipation support base, which is the foundation stone of the present invention, and the energy dissipation support base limits the shaking amplitude and frequency of a steel frame factory building in an earthquake, thereby greatly improving the seismic performance of the present invention. Specifically, the left and right energy dissipation support bases (4a, 4b) each include a base box 41 arranged below the ground and having a large opening at the top, a support unit 42 arranged in the base box 41, a plurality of torsion bar energy dissipation units 43, and a plurality of left hydraulic energy dissipation units 44, a plurality of right hydraulic energy dissipation units 45, a plurality of front hydraulic buffer units 46a, and a plurality of rear hydraulic buffer units 46b arranged around the support unit 42.
One end of the torsion bar energy dissipation unit 43 is fixed to the steel frame column 211, and the other end is fixed to the support unit 42. One end of the left hydraulic energy dissipation unit 44 is fixed on the left side wall of the base box 41, and the other end is slidably arranged on the support unit 42. One end of the right hydraulic energy dissipation unit 45 is fixed on the right side wall of the base box 41, and the other end is slidably arranged on the support unit 42. The front hydraulic buffer unit 46a is fixed on the front side wall of the base box 41, the rear hydraulic buffer unit 46b is fixed on the rear side wall of the base box 41, and piston rods of the front and rear hydraulic buffer units 46b are tightly attached to the support unit 42.
The top of the supporting unit 42 is provided with a supporting slideway 4221 matched with the bottom sliding chute 33, the left side wall structure 21a or the right side wall structure 21b is arranged on the supporting slideway 4221 through the bottom sliding chute 33, and the side wall structure can only slide back and forth along the supporting slideway 4221 and cannot slide left and right. When the steel frame factory building shakes left and right in the earthquake, under the cooperation of the bottom sliding groove 33 and the supporting slide 4221, the steel frame factory building and the supporting unit 42 slide together along the bottom surface of the base box 41.
The torsion bar energy dissipation unit 43, the left hydraulic energy dissipation unit 44, the right hydraulic energy dissipation unit 45, the front hydraulic buffer unit 46a and the rear hydraulic buffer unit 46b are used for absorbing energy, and further indirectly limiting the shaking amplitude and frequency of the steel frame factory building through the base box body 41. Specifically, the supporting unit 42 can slide along the bottom surface of the base housing 41 under the obstruction of the left and right hydraulic energy dissipating units 45 and the front and rear hydraulic cushion units 46 b.
Fig. 5 shows a specific structure of the supporting unit 42, and the supporting unit 42 is used for supporting the sidewall structure and transmitting the gravity of the steel frame factory building to the foundation. The supporting unit 42 includes a bottom plate 421, a supporting box 422 having an inverted "T" shape in longitudinal section, a plurality of reinforcing boxes 423, and a plurality of T-shaped reinforcing toggle plates 424. The bottom plate 421 is slidably disposed on the bottom surface of the base housing 41, and the support housing 422 is fixed to the bottom plate 421. In order to reinforce the overall strength of the supporting unit 42 and prevent the supporting case 422 from falling down to one side, the reinforcing case 423 is uniformly fixed to one side of the supporting case 422, and the T-shaped reinforcing toggle plate 424 is uniformly fixed to the other side of the supporting case 422. In order to prevent the steel frame factory building from sliding out of the range of the supporting slide 4221, baffles are arranged at two ends of the top of the supporting box body 422.
Further, the distance between two adjacent support boxes 422 is equal, and the distance between two adjacent T-shaped reinforcing brackets 424 is equal.
Further, the supporting box 422 and the reinforcing box 423 are all boxes surrounded by steel plates, and a plurality of components for enhancing the structural strength, such as reinforcing partition plates, longitudinal ribs, brackets and the like, are arranged inside the supporting box 422 and the reinforcing box 423.
Further, a boss 4231 is provided at the top of the reinforcement case 423, and a fixing hole for fixing the torsion bar 433 described below is provided on the boss 4231.
Further, the bottom surface of the base box 41, the lower surface of the bottom plate 421, the inner surface of the bottom sliding groove 33, and the outer surface of the supporting sliding way 4221 are frosted surfaces, so that the friction between the bottom surface of the base box 41 and the lower surface of the bottom plate 421 and the friction between the inner surface of the bottom sliding groove 33 and the outer surface of the supporting sliding way 4221 are greatly improved, the energy dissipation supporting base can better absorb energy during an earthquake, and the shaking of a factory building is reduced.
As shown in fig. 6 to 7, the torsion bar energy dissipation unit 43 includes a fixing rod 431, a swing arm 432, and a torsion bar 433, wherein one end of the fixing rod 431 is fixed to the steel frame column 211, and the other end of the fixing rod 431 is rotatably disposed at the upper end of the swing arm 432 through a bearing, that is, the swing arm 432 is rotatable about the fixing rod 431. One end of the torsion bar 433 is fixed at the lower end of the swing arm 432, and the other end is fixed in the fixing hole. Wherein, the material of torsion bar 433 is high elasticity steel. When the steel frame factory building shakes in the front-back direction, the swing arm 432 rotates along the fixing rod 431 and the upper end thereof moves forward or backward, thereby twisting the torsion bar 433 (similar to twisting a towel) and bending the torsion bar 433 forward or backward. The torsion bar 433 absorbs a large amount of energy in the twisting and bending processes, generates elastic force, limits the shaking of the steel frame factory building, and prevents the main structure from being damaged due to the fact that the steel frame factory building shakes forwards and backwards with too large amplitude and frequency.
As shown in fig. 8, the left hydraulic energy dissipating unit 44 includes a large hydraulic cylinder 441, a hydraulic cylinder frame i 442, a piston rod frame i 443, a front and rear slide way i 444, a left and right slide way i 445, and a left and right slide way ii 446. The cylinder body of the large hydraulic cylinder 441 is fixed to the cylinder frame i 442, and the piston rod of the large hydraulic cylinder 441 is fixed to the piston rod frame i 443. The hydraulic cylinder frame I442 and the piston rod frame I443 are arranged between two adjacent reinforcement boxes 423, one end of the hydraulic cylinder frame I442 is fixed on the left side wall of the base box 41, one end of the piston rod frame I443 is provided with a slide block matched with the front and rear sliding grooves I444, the front and rear sliding grooves I444 are fixed on the support box 422, and the piston rod frame I443 can slide along the front and rear sliding grooves I444. The side wall of the hydraulic cylinder frame I442 is provided with a sliding groove, and the side wall of the piston rod frame I443 is embedded into the sliding groove of the hydraulic cylinder frame I442 and can slide left and right. When the supporting unit 42 moves left and right, the piston rod frame i 443 is inserted into the hydraulic cylinder frame i 442, and the piston rod frame i 443 drives the piston rod to extend or retract.
The left and right slideways I445 are arranged on the side wall of the supporting box body 422, the left and right slideways II 446 are arranged on the side wall of the adjacent supporting box body 422, and the left and right slideways I445 are opposite to the left and right slideways II 446.
Further, the bilateral symmetry of piston rod frame I443 is provided with energy-absorbing structure 5, two energy-absorbing structure 5 with piston rod frame I443 constitutes "ten" style of calligraphy, and two energy-absorbing structure 5 slidable respectively set up on the lateral wall of two adjacent enhancement boxes 423, energy-absorbing structure 5 is used for absorbing the energy of steelframe factory building when rocking from beginning to end to reduce the range of rocking from beginning to end.
As shown in fig. 9, the energy absorbing structure 5 comprises a hollow cylindrical shell 51, a number of bumper plates 52, an inner bumper head 53. One end of the hollow cylindrical shell 51 is provided with a sliding groove matched with the left and right sliding ways I445 or the left and right sliding ways II 446, the hollow cylindrical shell 51 can slide along the left and right sliding ways I445 or the left and right sliding ways II 446, and the other end of the hollow cylindrical shell 51 is provided with a large opening. The reinforcing ribs 511 are symmetrically arranged on the outer side of the side wall of the hollow cylindrical shell 51, a plurality of concentric grooves are formed in the hollow cylindrical shell 51 at certain intervals, and the buffer plate 52 is arranged in the concentric grooves.
The buffer plate 52 includes fixing portions having the same thickness and protruding portions protruding to both sides, the fixing portions being located at edges of the protruding portions, the fixing portions being disposed in the concentric grooves. The protrusion protrudes to a greater extent on one side near the inner cushioning head 53 than on the other side.
The internal buffer head 53 is slidably arranged in the hollow cylindrical shell 51, the internal buffer head 53 protrudes towards one side of the buffer plate 52, the internal buffer head 53 is fixed on the outer side wall of the piston rod frame I443 through a buffer shaft 54, the tail end of the buffer shaft 54 is symmetrically provided with cutters 541, and the cutters 541 correspond to the reinforcing ribs 511 one to one.
The buffer shaft 54, the cutter 541 and the internal buffer head 53 are integrally formed, the performances in the aspects of strength, toughness and the like are all stronger than those of the hollow cylindrical shell 51 and the reinforcing ribs 511, and the performance of the buffer plate 52 is the weakest.
When the steel frame factory building rocks range from beginning to end greatly in earthquake, inside buffer head 53 will strike buffer board 52, so buffer board 52's fixed part and protruding portion will split and separate, and the protruding portion of separating will strike remaining buffer board 52 in proper order under the area of inside buffer head 53 leads to, carries out the energy-absorbing like this step by step, stops until the striking.
If all the cushion plates 52 have been broken and the impact has not yet stopped, the inner cushion head 53 continues to move forward, thereby crushing the cushion plates 52. At the same time, the cutters 541 cut into the ribs 511 to absorb a large amount of impact energy.
As shown in fig. 10, the right hydraulic energy dissipation unit 45 includes four small hydraulic cylinders 451, two hydraulic cylinder frames ii 452, two piston rod frames ii 453, and a front-rear chute ii 454. The small hydraulic cylinders 451 are divided into two groups, each two groups are provided, the oil cylinders of one group of hydraulic cylinders are all fixed on the hydraulic cylinder frame II 452, and the piston rods are all fixed on the piston rod frame II 453. The side wall of the hydraulic cylinder frame II 452 is provided with a sliding groove, and the side wall of the piston rod frame II 453 is embedded into the sliding groove of the hydraulic cylinder frame II 452 and can slide left and right. When the supporting unit 42 moves left and right, the piston rod frame II 453 is inserted into the hydraulic cylinder frame II 452, and the piston rod frame II 453 drives the piston rod to extend or retract. The front and rear sliding grooves II 454 are formed in the side wall of the support box 422, and the front and rear sliding grooves II 454 are formed between two adjacent T-shaped reinforcing toggle plates 424. The second hydraulic cylinder frame 452 is provided with a sliding block matched with the second front and rear sliding grooves 454, and the second hydraulic cylinder frame 452 can slide back and forth along the second front and rear sliding grooves 454.
Further, the large hydraulic cylinder 441, the small hydraulic cylinder 451, the front hydraulic cushion unit 46a, and the rear hydraulic cushion unit 46b each include a pressure-resistant barrel, a piston rod, and a piston. The piston is arranged in the pressure-resistant barrel in a sliding mode, a sealed space is enclosed by the pressure-resistant barrel and the piston, hydraulic oil is filled between the pressure-resistant barrel and the piston, and the piston rod is fixed on the piston. The piston rod drives the piston to move, and hydraulic oil is extruded through the piston, so that a counterforce is obtained.
Wherein the pressure-resistant barrel of the front hydraulic cushion unit 46a is fixed to the front side wall of the base housing 41, the pressure-resistant barrel of the rear hydraulic cushion unit 46b is fixed to the rear side wall of the base housing 41, and the piston rods of the front and rear hydraulic cushion units (46a4, 6b) are in close contact with the side wall of the reinforcement housing 423 but are not fixed to the reinforcement housing 423. When the supporting unit 42 moves forward or backward, the piston rod drives the piston to move toward the bottom of the pressure-resistant barrel, the hydraulic oil is compressed, and the piston rod provides a reaction force to the supporting unit 42 to delay the movement of the supporting unit 42.
Specifically, the working process of the invention is as follows:
when an earthquake occurs, most of the energy of the steel frame factory building swaying left and right is absorbed by the friction between the bottom plate 421 and the bottom surface of the base box 41, and the rest energy of swaying left and right is absorbed by the left and right hydraulic energy dissipation units 45, so that the swaying amplitude and frequency of the steel frame factory building in the left and right directions are limited within a reasonable range.
The energy of the front and back shaking of the steel frame factory building is absorbed by the friction between the support slideway 4221 and the bottom sliding groove 33, and then the torsion bar 433 is twisted and bent to generate elastic deformation and absorb a part of energy; then the supporting unit 42 moves forward or backward under the friction force applied by the bottom sliding chute 33 and the pulling force of the torsion bar 433, and the friction between the bottom plate 421 and the bottom surface of the base box 41 will absorb a part of the energy; if the steel frame factory building still moves forward or backward, the steel frame factory building will hit the baffle plate, and further drive the supporting unit 42 to move further, so that the energy absorbing structure 5 starts to work, thereby absorbing a large amount of energy to slow down the shaking of the supporting unit 42 and the steel frame factory building.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. A frame upper door type steel frame factory building capable of resisting seismic wave impact comprises a lower frame (2) and a top layer door type steel frame (1), wherein the lower frame (2) comprises a left side wall structure (21a), a right side wall structure (21b) and a plurality of platform structures (22), and the left side wall structure and the right side wall structure (21a, 21b) respectively comprise a plurality of steel frame columns (211); the method is characterized in that:
the energy dissipation device also comprises a bottom reinforcing longitudinal girder (3) which is provided with a bottom sliding groove (33) and is respectively arranged at the bottom of the left side wall structure (21a) and the right side wall structure (21b), a left energy dissipation support base (4a) used for supporting the left side wall structure (21a), and a right energy dissipation support base (4b) used for supporting the right side wall structure (21 b);
the left and right energy dissipation supporting bases (4a, 4b) respectively comprise a base box body (41) with a large opening at the top, a supporting unit (42) arranged in the base box body (41), a plurality of torsion bar energy dissipation units (43), a plurality of left hydraulic energy dissipation units (44), a plurality of right hydraulic energy dissipation units (45), a plurality of front hydraulic buffering units (46a) and a plurality of rear hydraulic buffering units (46b) which are arranged around the supporting unit (42);
the top of the supporting unit (42) is provided with a supporting slideway (4221) matched with the bottom sliding groove (33); one end of the torsion bar energy dissipation unit (43) is fixed on the steel frame column (211), and the other end of the torsion bar energy dissipation unit is fixed on the supporting unit (42); one end of the left hydraulic energy dissipation unit (44) is fixed on the left side wall of the base box body (41), and the other end of the left hydraulic energy dissipation unit is arranged on the supporting unit (42) in a sliding mode; one end of the right hydraulic energy dissipation unit (45) is fixed on the right side wall of the base box body (41), and the other end of the right hydraulic energy dissipation unit is arranged on the supporting unit (42) in a sliding mode; the front hydraulic buffer unit (46a) is fixed on the front side wall of the base box body (41), the rear hydraulic buffer unit (46b) is fixed on the rear side wall of the base box body (41), and piston rods of the front and rear hydraulic buffer units (46a, 46b) are tightly attached to the support unit (42);
the support unit (42) is slidable along the bottom surface of the base box (41) under the obstruction of the left and right hydraulic energy dissipating units (44, 45) and the front and rear hydraulic cushion units (46a, 46 b).
2. The steel frame work that can resist seismic impact of claim 1, wherein: a plurality of strengthening brackets I (31) and a plurality of strengthening brackets II (32) are arranged on the bottom strengthening longitudinal girder (3).
3. The steel frame work that can resist seismic impact of claim 1, wherein: the supporting unit (42) comprises a bottom plate (421), a supporting box body (422) with an inverted T-shaped longitudinal section, a plurality of reinforcing box bodies (423) and a plurality of T-shaped reinforcing toggle plates (424), wherein a convex block (4231) is arranged at the top of each reinforcing box body (423), and a fixing hole is formed in each convex block (4231).
4. The steel frame work that can resist seismic impact of claim 3, wherein: the bottom surface of the base box body (41), the lower surface of the bottom plate (421), the inner surface of the bottom sliding groove (33) and the outer surface of the supporting slideway (4221) are frosted surfaces.
5. The steel frame factory building on frame capable of resisting seismic wave impact of any one of claims 1 to 4, wherein: the torsion bar energy dissipation unit (43) comprises a fixing rod (431), a swing arm (432) and a torsion bar (433), wherein one end of the swing arm (432) is rotatably connected with the fixing rod (431) through a bearing, and the other end of the swing arm (432) is fixedly connected with the torsion bar (433).
6. The steel frame work that can resist seismic impact of claim 1, wherein: the left hydraulic energy dissipation unit (44) comprises a large hydraulic cylinder (441), a hydraulic cylinder frame I (442), a piston rod frame I (443), a front sliding groove I (444), a rear sliding groove I (445), a left sliding groove I (445), a right sliding groove II (446), sliding grooves are formed in the side wall of the hydraulic cylinder frame I (442), the side wall of the piston rod frame I (443) is embedded into the sliding grooves of the hydraulic cylinder frame I (442) and can slide left and right, and energy absorption structures (5) are arranged on two sides of the piston rod frame I (443).
7. The steel frame work that can resist seismic impact of claim 6, wherein: the energy absorption structure (5) comprises a hollow cylindrical shell (51), a plurality of buffer plates (52) and an internal buffer head (53).
8. The steel frame work house of claim 6 or 7, wherein the steel frame work house is adapted to withstand seismic shocks: the right hydraulic energy dissipation unit (45) comprises four small hydraulic cylinders (451), two hydraulic cylinder frames II (452), two piston rod frames II (453) and a front sliding groove II (454).
9. The steel frame work that can withstand seismic shocks of claim 8, wherein: the large hydraulic cylinder (441), the small hydraulic cylinder (451), the front hydraulic buffer unit (46a) and the rear hydraulic buffer unit (46b) respectively comprise a pressure-resistant barrel, a piston rod and a piston.
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| CN204475919U (en) * | 2015-02-16 | 2015-07-15 | 湖州康乐建设有限公司 | The steel-structure factory building that a kind of antidetonation is windproof |
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Effective date of registration: 20231019 Address after: No.20 Qingpi Avenue, Pingdu City, Qingdao, Shandong Province, 266700 Patentee after: Qingdao Xinguangzheng Hongxinda Steel Structure Co.,Ltd. Address before: 266700 No.268, Shenzhen road, Pingdu City, Qingdao City, Shandong Province Patentee before: QINGDAO XINGUANGZHENG STEEL STRUCTURE CO.,LTD. |