Tuned mass damper manufacture

Tuned mass damper is an engineering device that can reduce high-rise shaking under strong wind and help super high-rise buildings maintain stability and safety
TMD is usually composed of spring, mass block and linear viscous damper

Product features: large size, low natural frequency and small internal damping

Main purpose: control of vertical vibration of long-span structures, such as overpass, stadium shell top, cantilever, etc
General buildings often install dampers on the roof, and their weight is directly proportional to the weight of the building
Since the 1970s, people began to gradually apply these technologies to structural projects such as buildings, bridges and railways, and their development is very rapid

  Tuned mass damper adjusts the natural frequency of the auxiliary mechanism to be close to (slightly greater than) the control frequency of the main system by reasonably designing the mass, stiffness and damping coefficient
At the same time, it is named because it provides a force opposite to the direction of speed

TMD (tuned mass damper) is a passive damping system tailored to the needs of the building, which is set at the core of the building
Its main purpose is to adjust and reduce the swing of the building when it is attacked by the wind, so as to ensure the work of the building personnel, For leisure comfort
Different from the general traditional hidden damping system, a lot of calculation and research work needs to be carried out when setting TMD
Whether the setting position can exert greater damping needs to be considered in combination with architectural skills and structural functions
Construction Industry & ldquo; Fixed products, personnel flow, open-air and high-altitude operation, manual operation, heavy physical labor, large process changes, poor regularity, and various unsafe factors & rdquo; And other characteristics determine the high incidence of safety production accidents

The tuning frequency of the tuned mass damper can be adjusted appropriately according to the needs, and the adjustment range is & plusmn; 20%。 According to the results of field dynamic characteristics, the frequency can be adjusted appropriately to eliminate the adverse effect of the inconsistency between the actual frequency and the calculated frequency caused by calculation or construction, so as to ensure the vibration reduction effectiveness of the damper system

The utility model relates to a steel structure corridor support connecting structure, which is used to connect the I-shaped steel of the steel structure corridor, and the limit plate is arranged on the support plate and the I-shaped steel beam
Compared with the prior art, the invention has the advantages of stable stress performance, realizing the conversion between one-way sliding and two-way sliding of the support, improving the safety of the corridor, etc

 
At present, dampers are not only limited to buildings, but also widely used in civil engineering, especially in high-rise structures, TV towers, long-span spatial structures, overpasses, corridors, railway bridges and other structures
The structural damping control of TMD has played a great role