STUDY OF VIBRATION CONTROL USING TLCDS AND PERFORMED BY THE SOFTWARE DYNAPY IN A VISUAL WAY

Resumo

The problem of scarce construction area in highly populated cities of the world has led to
the use of tall buildings in the modern era. They provide a way to allocate more space for homes and
the commerce, increasing density in major cities. However, this type of structure is more susceptible to
vibration problems caused by winds and earthquakes. Tall building designers need to address this
liability carefully, since even small vibrations can cause extreme nuisance and discomfort to the
inhabitants of the building. One way to reduce the vibrations in a building is to use damper
mechanisms, such as a Tuned Liquid Column Damper (TLCD). This damper is a passive device that
works by absorbing a portion of the building’s oscillation energy, thanks to the relative movement
between them. The energy is mainly dissipated due to local pressure losses, such as the ones that occur
when a fluid is forced to pass through orifices. The effectiveness of a damper in a dynamically excited
structure can be computed by comparing its undamped response to the dampened response. In order to
obtain these responses, a numerical study of shear buildings equipped with TLCDs is done using
DynaPy, an open source software developed in the Python programming language. New features have
been incorporated into DynaPy, allowing the user to visualize and better understand the steps
performed by the program to obtain the dynamic response of the system.