Multi-directional torsional hysteretic damper (mthd)

Ukraine ₍₁₉₎ Id (her) 100799 (s) C2

(51) IPC

E04B 1/36 (2006.01)

E04B 1/98 (2006.01)

E04N 9/02 (2006.01)

STATE SERVICE INTELLECTUAL OPPORTUNITY OF UKRAINE

(12) DESCRIPTION TO A patent for an invention

(21) Application number: a 2011 09999

(22) Date of application: 16.02.2009

(24) Date from which the law of 25.01.2013 is in force:

(41) Publication of information 10.10.2011, Bulletin No. 19Application:

(46) Publication of information dated 25.01.2013, Bulletin No. 2 on the issuance of a patent:

(86) Number and date of PCT / TR2009 / 000027,

submission of the international application dated February 16, 2009 submitted

in accordance with the PCT Agreement

(72) The inventor (s):

Dikleli Murat (TP),

Milan Salem Ali (TP)

(73) Owner (s):

Dickleigh Murat

Opa Youda Tekpik ipeuegeiiiei, MIevelLiZiikViiiitegi Voiiti, 06531 Apkaga, Tigkeu (TP)

(74) Representative:

Kister Arseniy Leonidovich, registry number 177

(56) List of documents taken into account by the expert examination: iA 36934 A, 16.01.2001 and 76361 C2, 17.07.2006 and 59224 A, 15.08.2003, and 5806250 A, 15.09.1998, and 3730463 A, 01.05.1973 and 5509238 A, 23.04.1996.

(54) DIFFERENT HYSTERESIGN TORSION DEMPPHER (RGTD)

(57) Summary:

The invention relates to anti-seismic devices, in particular to hysteresis dampers, seismic oscillations used to strengthen structures from earthquakes. These devices are installed in places where there are serious shifts during earthquakes, such as at the junction of bridge decks and points of application of forces.

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Industry of invention

This invention relates to anti-seismic devices, in particular to hysteresis damper seismic oscillations used to strengthen structures from

earthquakes. These devices are installed in places where gravity displacements are expected during earthquakes, for example, at the junction of bridge decks and points of application of forces.

The level of technology

The damps dissipate energy. The damps dissipate the kinetic energy that comes to them, during relative motion on both sides (both ends). If we consider the action of the damper from the point of view of the displacement of force, and not energy, then the damper applies force to mobile tips, which is always directed against their relative displacement. This force should be called "strength of the" countermeasure "of the damper, which measures the ability of the damper to dissipate energy. Hysteresis dampers the ability to dissipate energy is achieved through the use of hysteretic properties of metals.

At present, there are two types of multi-directional hysteresis damper for construction of mounts: devices according to US Pat. No. 5,806,250, consisting of cemented shaped elements, devices according to US Pat. No. 5,509,238, consisting of scaffold elements and energy-dissipating tapered pin elements. There are other types of hysteretic dampers, but they do not contain elements that allow the damper to operate in different directions, for example, such as dissipation elements in the form of a butterfly.

Other depreciation units at the level of existing technology, it is in most cases the oscillator, with self-centering rubber rings, acting as damping elements of the damper. These gasses of oscillations are patented at US 3,730,463. GumoThese rings are used, for example, in elastomeric bridging insulation, in order to add elasticity to the joint, increase the period of free fluctuations of reinforced structures, and thus protect the structure from fracture during strong oscillations. In contrast to the oscillation oscillators, the function of the hysteresis damper represented by the present invention is not the isolation of the structure, but the increase in the ability to dissipate the impact energy, which is achieved due to the dissipative force due to the plastic deformation of the materials. Although oscillation suppressors are capable of inhibiting small rolling, they are not hysteresis damping and, having a self-centering system, can not absorb powerful blows.

In multi-directional devices consisting of crescent-shaped dissipative energy, Italy's patent MIC96A1447, curved beams with a variable intersection work as scattered energies. These elements have a form that provides uniform deformation of the entire length of the element and located in such a way that a symmetrical device is created, in which all individual dissipants of energy work as a whole, creating a more powerful counteraction force.

In devices consisting of elements of a bracket, C-shaped or the like, the disks are installed in a different directional device in symmetric order. C-shaped disks provide hysteresis energy dissipation at distortions and deformations of the width with bending / unscrewing.

Elements of a conical pin are straight beams with a circular variable section all along the length, therefore during their curvature there is a uniform deformation in height, which prevents the concentration of stress. Due to the symmetry in all directions, the elements are easily arranged in a multi-directional damping system without any mechanism that leads them to the state of operation in different directions.

The difference between the invented device RGTD and existing models are described in the next section.

Application of the invention

The purpose of the present invention is to create a multi-directional hysteresis damper in an industry that is better or as effective in application as existing hysteresis dampers. As regards the characteristics of the invention, the main differences between the invention of the RGTD and the existing models are as follows:

1. The variable coefficient of elastic deformation due to the special mechanism creates the geometric fixation effect shown in FIG. 13 and explained further in detail.

2. Easily adjustable length of the lever (and beams) provides a convenient adjustment of the properties of the device: counter forces and maximum permissible displacement.

3. The device allows the relative vertical displacement between the upper and lower anchor end, without creating any obstacles in the functioning of the system in the horizontal direction.

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Brief description of the invention

Although the use of cylindrical steel cores as hysteresis damping elements is known from the state of the art, their incorporation into a multi-directional hysteresis damper is a new and unique feature of the present invention.

The main parts of the present invention are:

- deformable rods and lever (consist of parts 1,2, 4, 7, 8, 9),

- central supporting structure (consisting of parts 5 and 6),

- Guiding system (consists of parts 10 and 11).

Description of drawings

In order to provide a detailed explanation of the invention, the necessary drawings are attached. The list of explanations of the drawings is given below.

FIG. 1. A three-dimensional image of a device without a guide system, which was taken to bettershow the parts located below,

FIG. 2. Three-dimensional image of the guide system,

FIG. 3. A three-dimensional image of a device with a sketch of the guide system,

FIG. 4. Side view of the device without a guide system

FIG. 5. Top view of the device without a guide system

FIG. 6. Top view of the device with all components (no invisible lines),

FIG. 7. A section 81-81 according to FIG. 4,

FIG. 8. A section 82-82 in accordance with FIG. 5,

FIG. 9. A section 83-83 according to FIG. 6

FIG. 10. Directional system, bottom view,

FIG. 11. Directional system, top view,

FIG. 12. One of the levers and, accordingly, its guide beam in a disassembled state,

FIG. 13. Diagram of stabilization in the direction of one of the guide beams (any) with the initial elastic-plastic properties.

Description of elements in the figures (Properties, Components, Parts)

1. Deformable corona

2. lever

3. Central ball bearing (bearing) - an ordinary steel ball bearing, which is used for the hinged connection of the central (11) and flat (6) diaphragms. Since bearings are used to connect the central diaphragm, it must be called a central bearing, so that it can be distinguished from the bearing / ball bearing hinged,

4. The ball bearing lever is a typical metal bearing used for the ball bearing connection between the lever (2) and the guide beam (10),

5. Support column

6. Disk aperture with round apertures,

7. A complete cylindrical shaft, welded to the lever for fixing the ball support of the lever,

8. Upper cylindrical ring welded to the shaft. Used to lock the bullet bearings levers in place. Instead of the upper cylindrical rings, any other mounting may be used, for example, bolts,

9. Lower cylindrical ring used to fix ball bearingsweights. As in the previous case, instead of them can be used any other types of fixings, for example, bolts,

10. Balka. The eight guiding beams for the bearing of the lever are part of the guiding system.

11. The upper plate (is part of the beams system) with slots (or other accessories, depending on the type of mounting) for the top mounting of the device to the plate floorboard.

12. Central support plate for fastening of the whole device to the base (up to the beam of the ridge pole) of the bridge.

Detailed description of the invention

The hysteresis damping device of the present invention consists of three main parts:

1. Core deformable (1): With the lever assembly that includes stalevipidshypnyky (4) for the hinge connection of ball lever (2) with the guide rail system forthe unhindered movement of the tip of the lever (2) in the middle of the guide beams .Vazhil (2) is welded to the core, a deformable (1) on one side (top) and with inshoyistorony is welded solid cylindrical shaft (7), which serves as a mounting axle bearings dlyakulkovyh lever (4), as shown in FIG. 9. There are also two rings (8, 9) on the bottom and to the top of the bearing of the lever, allowing the bearing of the lever (4) to be fixed in place.

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Instead of the lower and upper (8, 9) cylindrical rings, any other fastening means, for example, bolts can be applied. The upper ring (8) is welded to the mounting shaft (7). The deformable cores are made of steel and serve as energy dissipation devices. The invention includes at least 8 identical cylindrical shaped rods with variable diameters. Rods (1) deform, mainly, with torsion load and dissipate energy for the turning of the levers (2). The deformable rods (1), from the bottom side are welded to the central support plate (12), which allows attaching the device (hysteresisdempfer) to the bridge of the bridge support.

2. Support structure: The supporting structure consists of a central whole steel column (5) and disk aperture (6), to which it is welded. Disk aperture (6) is attached to the deformable rods (1) with the help of central bearings (3). The central ball bearings (3) are used for the torsion joint joining of the shaped rods (1) and the flat diaphragm (6), which allows the rods (1) to rotate freely. The main function of the bearing column (5) is to prevent the curvature of the rods (1). Due to the high level of transverse rigidity and parallel connection with the rods (1), the central support column (5) assumes a large part of the bending moment, and thus reduces the voltage when bending in the rods (1), which must be deformed when displacing a close clear torsion displacement.

The central support column (5) may be of a different shape, such as a cube or octagonal prism, if it provides the necessary transverse stiffness. The central support column (5) is welded to the support plate (12). The disk aperture (6) is also welded to the central bearing column (5) from the lower and upper sides of the center aperture in the disk aperture (6).

3. Directional system. The guiding system provides a connection between the bridge deck and the weights (2). The guide system is attached to the bridge deck with bolts and outlets, and, if necessary, a block of transmission of impact energy can be installed. The system consists of an upper plate (11) with longitudinal holes and guide beams that are welded to this plate (11). Directional beams (10) can be made of steel sheets, welded in the form of a channel profile. Also, as a guide beam (11) can be used roller channel profile, if its parameters meet the requirements. In some cases, you may need an element of rigidity of the side wall to strengthen the transverse rigidity of the console part of the guide beam. The upper plate (11) is attached to the bridge deck with the help of metal rods (bolts),

The guide system and ball bearings of the arms (4) form the desired connection of the ends of the levers (2) with the bridge deck. Due to this type of connection, each lever (2) will move sideways (relative to its respective guide beam), regardless of the direction in which the bridge is moving, and the lever (2) does not need to follow in the direction of the component disturbance of the bridge floor along the guide (10). This property exists in all eight directional beams (10). As shown in FIG. 12, in a non-deformed state, each lever (2) is perpendicular to its guide beam (10). When the device is in place, the levers are rotated, and the angle θ between the lever (2) and its guide beam (10) increases. Since the lever (2) must clamp the rod (1) when turning, the transverse force (V) appears in the lever perpendicular to the beam guide (Fig. 12 The transverse force should be balanced by a component of the force P, normal to the lever in the ball bearing area of ​​the hinge and the guide, as shown in FIG. 12. This force, thanks to the ball bearing bearings of the lever (4), always occurs perpendicular to the guide beams (10). However, the two components of force length and perpendicular to the lever (2) depend on the angle, θ, between the lever and its direction of the beam (10):

Y = R.SO5 (0)

H = P.δίη (θ)

The foregoing indicates that for the transverse force V (the force acting on the occurrence of a torsion moment in the center) arising in the lever (2), the force P should be calculated as:

P = U / CO5 ^)

By increasing the angle θ, even if force V remains constant (assuming that the steel has elastic-plastic properties), the force P will increase, giving the device a capacity for spatial stabilization. It should be noted that the totality of the components of these forces (P) along the direction of displacement coming from all 8 guide beams (10) is equal to the strength of the hysteresis damper. Thus, the force of counteracting the device depends on the level ofposition, even when the reaction of plastic and elastic-plastic materials. The stabilization process is depicted in FIG. 13. Also, this means that the displacement can not exceed a certain norm. Theoretically, the displacement rate is equal to the length of the lever (2). This level of displacement corresponds

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angle 90 °. However, since, at angles of approximately 90 °, the axial force arising on the lever, (2) the thruster G will be very large, in practice the permissible bias rate shouldcalculated as follows: "length of the lever X 5ip (60 °), corresponding to maximal rotation angle of 60 °. In special cases, when the expected displacement of the bridge deck exceeds the above level, it is necessary to provide more powerful hysteresis devices.

FORMULA INSTRUCTIONS

1. Multi-directional hysteresis torsion damper, which is an anti-seismic device of a hysteresis type with a multi-directional action to protect structures from earthquakes, which consists of:

- at least 8 identical rods (1) of cylindrical shape with variational diameters; Rods have deformation properties and thus perform the functions of energy dissipating, deforming at the torsion load transmitted through the levers (2), welded upstream, with the rotation of the levers and the occurrence of deformations in the rods (1); Each rod (1) has a lever mounted to it from above; On the bottom side, each rod is welded to the support plate (12) and secured to the flat diaphragm by means of a ball joint, which connects the central bearings (3) of the rods (1) and the flat diaphragm;

- a supporting structure consisting of a support column (5) and a flat diaphragm (6); function of the supporting structure is to prevent the curvature of the rods (1); the supporting structure takes on most of the bending moment and thereby protects against excessive bending of the rods, which must deform during twisting when turning the levers (2);

- a guide system consisting of identical guide beams (10) in the form of a channel profile; the number of guide beams is equal to the number of rods (1) plus the upper plate (11); the guide beams (10) are welded to the upper plate (11) and are arranged parallel to the levers (2); the function of the system is to direct the movement of the levers (2) at the end points where the bearings of the levers (4) are installed in order to create, together with the guide beams (10), a hinged connection of the knobs (2) with the bridge deck.

2. The divergent hysteresis torsion damper according to claim 1, characterized in that the bearings of the arms (4) are secured to the cylindrical shafts (7), which are on the lever heads, and fixed by means of the upper cylindrical ring (8) and the lower cylindrical ring (9) ; upper cylindrical rings (8) welded from top to cylindrical shafts (7).

3. The divergent hysteresis torsion damper according to any one of the preceding claims, characterized in that it is equipped with an upper plate (11) with slits of an elongated shape, which serves to fasten a multi-directional hysteresis damper to the bridge floor.

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Computer layout by M. Lomalov

State Service of Intellectual Property of Ukraine, st. Uritskogo, 45, Kyiv, SME, 03680, Ukraine

State Enterprise "Ukrainian Institute of Industrial Property", st. Glazunova, 1, Kyiv - 42, 01601

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