CN204738384U - High -rise building shock attenuation power consumption device - Google Patents

Abstract

The utility model provides a high -rise building shock attenuation power consumption device, including the steel frame, characterized by: be provided with mutually perpendicular's hydraulic pressure bracing piece group in the steel frame, every hydraulic pressure bracing piece group all includes the hydraulic pressure bracing piece of three parallels. The utility model discloses combine together hydraulic pressure bracing piece and traditional steel frame, the steel frame is born whole vertical load and is toppled the moment of flexure as structure edge member, and place in the hydraulic pressure bracing piece and bear whole yawing forces in the steel frame, the anti side rigidity of lift frame by a wide margin, the side that reduces structure itself is moved, and can consume seismic energy through compression or extension at antidetonation in -process hydraulic stem, reach the power -wasting purpose of shock attenuation. (Pbpnum='1' /)

Description

A kind of highrise building damping energy-dissipating device

Technical field

The utility model relates to building aseismicity field, is specifically related to a kind of novel damping energy-dissipating device.

Background technology

In modern architecture, steel work relies on its good distortion energy dissipation capacity to be more and more applied in high building structure, and steel building adopts steel framed structure to bear vertical load and the horizontal seismic force of structural entity usually.Although steel frame has be out of shape energy dissipation capacity preferably, the anti-side rigidity of structure itself is less, causes structure easily to produce larger lateral displacement, becomes a problem demanding prompt solution in high building structure.In steel frame, arrange that support system can make up the defect that steel frame anti-side rigidity is low, sidesway is large preferably, become a kind of good Lateral Resistant System.

Hydraulic supporting strut is widely used in the modern life and building at present, mainly adopts oil circulation to control the device of support bar load, and has stronger bearing capacity along rod member direction.

Utility model content:

The technical problems to be solved in the utility model is to provide a kind of novel damping energy-dissipating device, changes the present situation that conventional steel framework anti-side rigidity is low, strengthens the damping energy dissipation capacity of structure.

The utility model adopts following technical scheme to realize utility model object:

A kind of multilayer structure damping energy-dissipating device, comprise steel frame, it is characterized in that: be provided with orthogonal hydraulic supporting strut group in described steel frame, each hydraulic supporting strut group includes three parallel hydraulic supporting struts.

As the further restriction to the technical program, described steel frame comprises Vierendeel girder and frame column, and described Vierendeel girder and frame column all adopt i shaped steel.

As the further restriction to the technical program, described Vierendeel girder two ends are fixed on described frame column by end plate, and described Vierendeel girder and described end plate are by being welded to connect, and described end plate and described frame column are bolted.

As the further restriction to the technical program, described hydraulic supporting strut all arranges one in two diagonals of described steel frame, all arranges two between adjacent described Vierendeel girder and the mid point of frame column.

As the further restriction to the technical program, the hydraulic supporting strut of two diagonals of described steel frame is fixed on described steel frame by connector one, connector two and connecting bolt.

As the further restriction to the technical program, the hydraulic supporting strut between adjacent described Vierendeel girder and the mid point of frame column is fixed on described steel frame by connector three and connector four.

Compared with prior art, advantage of the present utility model and good effect are: hydraulic supporting strut combines with conventional steel framework by the utility model, steel frame bears whole vertical load and overturning moment as structural edge component, hydraulic supporting strut is built in steel frame bears whole lateral force, can the anti-side rigidity of significantly lift frame, reduce the sidesway of structure itself; And hydraulic stem by compressing or extending earthquake energy, can reach the object of damping power consumption in antidetonation process.The utility model is fast fairly simple in construction, only need choose suitable hydraulic supporting strut and is connected with framework by connector; The board-like connected mode of two ends overhanging end that steel frame adopts belongs to varied rigid link, and compared with the rigid connection adopted in conventional steel framework, overhanging end board-like connected mode in two ends can strengthen the distortion energy dissipation capacity of structure.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the structure disassembly diagram that frame column is connected with Vierendeel girder.

Fig. 3 is the structure disassembly diagram one of hydraulic supporting strut and beam-to-column connection.

Fig. 4 is the structure disassembly diagram two of hydraulic supporting strut and beam-to-column connection.

Fig. 5 is hydraulic supporting strut and steel framed structure equivalent schematic.

In figure, 1-frame column, 2-Vierendeel girder, 3-hydraulic supporting strut, 4-end plate, 5-node bolt, 6-connector one, 7-connector two, 8-connecting bolt, 9-connector three, 10-connector four.

Detailed description of the invention:

Below in conjunction with embodiment, further illustrate the utility model.

See Fig. 1-Fig. 5, the present invention includes steel frame and hydraulic supporting strut 3.Described steel frame comprises frame column 1 and Vierendeel girder 2, and the connected mode of frame column 1 and Vierendeel girder 2 adopts the board-like connection of two ends overhanging end, and namely Vierendeel girder 2 and end plate 4 are by being welded to connect, and end plate 4 is connected by node bolt 5 with frame column 1; Described hydraulic supporting strut 3 is built in steel frame, the diagonally oblique layout three in framework side, and arrange three hydraulic stems equally at framework opposite side, arranged direction is vertical with previous arranged direction; In steel frame 2 diagonals, steel frame and connector 1 are welded to connect, and hydraulic supporting strut 3 is same with connector 27 to be welded to connect, and connector 1 and connector 27 carry out bolt connection by connecting bolt 8; At midpoint welded connections 39, four hydraulic supporting struts of frame column 1 and Vierendeel girder 2, same and connector 4 10 is welded to connect, and fitting 39 is connected by connecting bolt 8 with connector 4 10 afterwards.

The selection principle of hydraulic supporting strut:

Hydraulic supporting strut is that the load born in antidetonation process according to rod member carries out choosing, and first can calculate the load that every root hydraulic stem is born in the design, can choose suitable rod member be afterwards applied in structural system according to result of calculation.In rod member calculates, steel frame-hydraulic pressure support structural system can be equivalent to steel frame-steel plate shear wall structure (see Fig. 5), steel frame-steel plate shear force wall diagonal in antidetonation process can produce three pull strap, i.e. diagonally the main pulling force band of three and two pull strap of both sides in the middle part of body of wall.

(1) the choosing of steel plate thickness t

The shear-carrying capacity that steel plate in steel frame-steel plate shear force wall provides should be greater than horizontal seismic force, namely

a·τ·t>r _R·P (1)

The lower limit of steel plate thickness can be determined, namely according to this principle

$t>\frac{r_R\·P}{a\·\mathrm{\τ}}---\left(2\right)$

In formula, r _rfor antidetonation partial safety factor, get 1.2; P is horizontal seismic force; A is equivalent steel plate shear force wall width; T is equivalent steel plate shear wall's thickness; τ is equivalent steel plate shear force wall shear stress.

Steel frame-steel plate shear force wall is in the design using the shear buckling state of steel plate as its stressed limit, and steel plate thickness now can be used as the higher limit of steel plate thickness, namely

$t<\frac{b}{100}\sqrt{\mathrm{\&tau;}/[123+\frac{93}{{(a/b)}^2}]}---\left(3\right)$

The span of the thickness of steel plate can be obtained, namely according to formula (2) and (3)

$\frac{r_R\&CenterDot;P}{a\&CenterDot;\mathrm{\&tau;}}<t<\frac{b}{100}\sqrt{\mathrm{\&tau;}/[123+\frac{93}{{(a/b)}^2}]}---\left(4\right)$

In formula, b is steel plate height.

(2) calculating of hydraulic supporting strut bearing capacity

The hydraulic supporting strut defining two diagonals of described steel frame is middle part hydraulic stem, and the bearing capacity of middle part hydraulic stem is F ₁, the hydraulic supporting strut between adjacent described Vierendeel girder and the mid point of frame column is both sides hydraulic stem, and the bearing capacity of both sides hydraulic stem is F ₂and F ₃, wherein F ₂=F ₃.Steel plate shear force wall after equivalence is divided into nine bands, the width of every root band is (see Fig. 5).In the middle part of steel plate shear force wall, three band are as the main pulling force band of body of wall; Two band of main pulling force band both sides are as the secondary pull strap of body of wall, then the width of the pull strap after three hydraulic stem equivalences is respectively

According to formula A=0.55Dt (D and D _1,d ₂and D ₃) section area that can obtain three pull strap is:

$A_1=\frac{11t}{60}\sqrt{a^2+b^2},A_2=A_3=\frac{11t}{90}\sqrt{a^2+b^2}.$

According to F=Af _y(A and A ₁, A ₂and A ₃) bearing capacity that can calculate every root hydraulic stem is

$F_1=\frac{11}{60}{f}_y\&CenterDot;t\&CenterDot;\sqrt{a^2+b^2},F_2=F_3=\frac{11}{90}{f}_y\&CenterDot;t\&CenterDot;\sqrt{a^2+b^2},$

In formula, f _yfor the yield strength of equivalent steel plate shear force wall; T is equivalent steel plate shear wall's thickness; A is equivalent steel plate shear force wall width; B is equivalent steel plate shear force wall height.Can choose suitable hydraulic supporting strut according to result of calculation to be applied in structural system and to go, mode of choosing and the above-mentioned mode of choosing of three hydraulic supporting struts in another diagonal of steel frame duplicate, and do not repeat them here.

Claims (6)

1. a highrise building damping energy-dissipating device, comprises steel frame, it is characterized in that: be provided with orthogonal hydraulic supporting strut group in described steel frame, and each hydraulic supporting strut group includes three parallel hydraulic supporting struts.

2. highrise building damping energy-dissipating device according to claim 1, it is characterized in that: described steel frame comprises Vierendeel girder and frame column, described Vierendeel girder and frame column all adopt i shaped steel.

3. highrise building damping energy-dissipating device according to claim 2, it is characterized in that: described Vierendeel girder two ends are fixed on described frame column by end plate, described Vierendeel girder and described end plate are by being welded to connect, and described end plate and described frame column are bolted.

4. highrise building damping energy-dissipating device according to claim 3, is characterized in that: described hydraulic supporting strut all arranges one in two diagonals of described steel frame, all arranges two between adjacent described Vierendeel girder and the mid point of frame column.

5. highrise building damping energy-dissipating device according to claim 4, is characterized in that: the hydraulic supporting strut of two diagonals of described steel frame is fixed on described steel frame by connector one, connector two and connecting bolt.

6. highrise building damping energy-dissipating device according to claim 4, is characterized in that: the hydraulic supporting strut between adjacent described Vierendeel girder and the mid point of frame column is fixed on described steel frame by connector three and connector four.