Improving Seismic Performance of Structure with Semi-rigid floor using VSL-Gensui Damper

Seismic performance of structures can be improved using various methods. In this
study, Vorspann System Losinger (VSL) Gensui Damper is used to improve the seismic
performance of building with semi-rigid floors. Spectrum consistent ground accelerations is
generated from El Centro May 19th, 1940 earthquake per SNI 1726:2012 for Mataram, Indonesia.
Modified Simplified Sequential Search Algorithm (MSSSA) and Optimum Damper Allocation
Method (ODAM) are used to efficiently place the dampers on the building to meet certain criteria.
Uniform placement which is used as the first step of ODAM is used for comparison. The results
show that both methods can effectively reduce structural drifts and damages. MSSSA shows
slightly better performance since ODAM has a limitation that dampers can only be swapped
among stories of the initially chosen frames. It is also noted that the dampers must be well
distributed among frames in the same story, to take care the different drifts in building with semirigid floors.