CN203080721U - High-rise structure vibration reduction control device with novel steel wire rope damper - Google Patents

Abstract

The utility model discloses a vibration reduction control device for a tall structure containing a novel steel wire rope damper. The vibration reduction control device is arranged at the top or upper part of the tall structure, and comprises an annular mass block, a suspension device and a steel wire rope damper. The annular mass block is suspended at the top or upper part of the tall structure through the suspension device. A plurality of steel wire rope dampers are evenly distributed between the inner wall of the annular mass block and the outer wall of the tall structure. One end of the steel wire rope damper is connected to the annular mass block, and the other end is connected to the outer wall of the tall structure through a pad. The utility model can effectively reduce the vibration intensity and stress level of the tall structure; the steel wire rope damper made entirely of stainless steel and corrosion-resistant alloy materials is used to provide damping force, and can be used for a long time in various harsh environments without replacement and maintenance.

Description

Vibration control device for towering structures with a new type of wire rope damper

technical field

The utility model relates to a towering structure damping control device with a novel steel wire rope damper.

Background technique

The severe vibration of the tower body will cause serious bending and inclination of the tower body, and the efficiency of the tray will decrease, resulting in the inability to maintain normal production and operation and causing serious economic losses. Sustained and severe vibration will also cause excessive stress changes in the skirt of the tower to form fatigue cracks, resulting in cracking and damage to equipment, and even casualties and serious safety accidents. Large-scale petrochemical enterprises in my country are mostly built in coastal areas, and production equipment is often subjected to wind loads such as typhoons. Tower equipment damage caused by wind-induced vibration is more prominent, and accidents of chemical tower equipment damage caused by wind-induced vibration have occurred many times. The construction period of petrochemical production equipment is as long as several years, and many equipments have to be vacant for a period of time after being installed on site before they can be put into production. There is no material in the vacant tower equipment, and the damping of wind-induced vibration is different from that of the equipment in the operating state. Even if the anti-vibration design under reasonable operating conditions is carried out, the tower equipment may be damaged by wind-induced vibration during the vacant period. Therefore, the research on the vibration of high tower equipment induced by wind and the development of vibration control devices are practical problems to be solved urgently.

Tuned Mass Damper (TMD) is an inertial mass added to the top or upper part of the tower, and connected to the main structure (the tower) with springs and dampers. The vibration frequency of the tuned mass damper is close to the frequency of the main structure. The control strategy is to use the substructure and the main structure to control the mode resonance to achieve the purpose of dynamic vibration absorption. The damping structure is used to continuously consume the energy of the main structure and the substructure to reduce the dynamic response of the main structure. . In the prior art, there are few applications of tuned mass dampers used for vibration reduction of towering structures, and the vibration damping effect is not good, and the damping devices in existing tuned mass dampers mostly use piston-type hydraulic dampers, which require regular However, due to safety considerations, in many cases, it is not allowed to overhaul and replace damping devices through high-altitude operations. This problem has seriously restricted the promotion and application of tuned mass dampers in actual engineering.

Contents of the invention

In order to overcome the shortcomings of the existing tuned mass damper used for vibration reduction of high-rise structures, such as the need for regular replacement and maintenance, and low safety factor, the utility model provides a high-rise structure vibration reduction control device with a new type of wire rope damper.

The technical scheme that the utility model adopts is:

A high-rise structure vibration reduction control device containing a new type of steel wire rope damper. The vibration reduction control device is arranged on the top or upper part of a high-rise structure, and is characterized in that it includes an annular mass block, a suspension device and a wire rope damper. The annular mass block passes through The suspension device is hung on the top or upper part of the towering structure, and a plurality of the wire rope dampers are evenly distributed between the inner wall of the annular mass and the outer wall of the towering structure, and one end of the wire rope damper is connected to The other end of the annular mass block is connected to the outer wall of the towering structure through a backing plate.

Further, the suspension device includes a plurality of cantilevers fixed on the outer wall of the towering structure through backing plates, and the cantilevers are evenly distributed along the circumference of the outer wall of the towering structure; the cantilever hangs the ring-shaped mass through suspension cables.

Further, the upper end of the suspension cable is connected to the cantilever through a stud, nut and washer assembly, and the lower end is connected to a connecting plate through a stud, nut and washer assembly; the connecting plate is combined through a stud, nut and washer The component is connected with a welding plate, and the welding plate is welded on the inner wall of the annular mass.

The beneficial effect of the utility model is embodied in that: through the damping effect of the mass damper, the vibration intensity and stress level of the towering structure can be effectively reduced; the damping force provided by the steel wire rope damper completely made of stainless steel and corrosion-resistant alloy materials can be It can be used for a long time in various harsh environments without replacement and maintenance.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is a schematic diagram of the partial structure of the utility model.

Fig. 3 is a top view of the utility model.

Detailed ways

Referring to Fig. 1 to Fig. 3, the high-rise structure damping control device that contains novel steel wire rope damper, described vibration-damping control device is arranged on the top or upper part of high-rise structure, comprises annular mass block 9, suspension device and steel wire rope damper 8, so The annular mass 9 is suspended on the top or upper part of the towering structure 1 through the suspension device, and a plurality of the wire rope dampers are evenly distributed between the inner wall of the annular mass 9 and the outer wall of the towering structure 1 8. One end of the wire rope damper 8 is connected to the annular mass 9 , and the other end is connected to the outer wall of the towering structure 1 through the backing plate 2 .

Further, the suspension device includes a plurality of cantilevers 3 fixed on the outer wall of the towering structure 1 through backing plates 2, and the cantilevers 3 are uniformly distributed along the circumference of the outer wall of the towering structure 1; Hang the annular mass 9.

Further, the upper end of the suspension cable 5 is connected to the cantilever 3 through a stud, nut and washer assembly 4, and the lower end is connected to a connecting plate 6 through a stud, nut and washer assembly 4; The column, nut and washer assembly 4 is connected with a welding plate 7 , and the welding plate 7 is welded on the inner wall of the annular mass 9 .

The content described in the embodiments of this specification is only an enumeration of the implementation forms of the inventive concept, and the protection scope of the present utility model should not be regarded as limited to the specific forms stated in the embodiments, and the protection scope of the present utility model also extends to this invention. Equivalent technical means that those skilled in the art can think of according to the concept of the utility model.

Claims (3)

1. A towering structure damping control device containing a novel steel wire rope damper, said vibration damping control device being arranged on the top or upper part of a towering structure, characterized in that: comprising an annular mass block, a suspension device and a wire rope damper, said annular mass The block is suspended on the top or upper part of the towering structure through the suspension device, and a plurality of the wire rope dampers are evenly distributed between the inner wall of the annular mass block and the outer wall of the towering structure, and one end of the wire rope damper It is connected to the annular mass block, and the other end is connected to the outer wall of the towering structure through a backing plate. 2. the towering structure damping control device that contains novel steel wire rope damper as claimed in claim 1 is characterized in that: described suspension device comprises a plurality of cantilevers that are fixed on the outer wall of described towering structure by backing plate, described The cantilevers are evenly distributed along the circumference of the outer wall of the towering structure; the cantilevers suspend the annular mass through suspension cables. 3. The high-rise structure vibration reduction control device containing a new type of wire rope damper as claimed in claim 2, wherein the upper end of the suspension cable is connected to the cantilever through a stud, nut and washer assembly, and the lower end is connected to the cantilever through a stud The nut, washer assembly is connected to a connecting plate; the connecting plate is connected to a welding plate through the stud, nut, washer assembly, and the welding plate is welded on the inner wall of the annular mass block.

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