چكيده لاتين :
The purpose of this paper is to introduce a friction damper that is stable and
resistant to dynamic loads. The friction device, called Friction Brake Pad (FBP),
dissipates vibration energy through friction and developed brake pads slide over steel
surfaces. While presenting the test results, vibration performance of the damper with
regard to dissipating dynamic forces energy is reviewed. It is observed that the designed
damper has high capacity in absorbing dynamic forces energy and a high percentage of
seismic energy may be dissipated into heat. The results show that sliding load of the
damper is constant along its sliding path and the quantity is not released throughout
sequential cycles. Dissipative performance ofthis damper is also analyzed through a five
story steel frame with moment connections. Non-linear dynamic analyses reveal that
lateral displacement ofthe frame is drastically reduced when damper are installed on it,
while base shear at the frame is also controlled. It also shows that the frame has behaved
linearly in strong earthquakes and no plastic hinges are developed in the columns or in
any frame elements. It may therefore be said that the designedfriction damper has special
characteristics to reduce vibration energy in a structure subject to seismic forces while it
can easily be installed on various types ofconventional structures.
