Akademik Veri Yönetim Sistemi
Tezin Türü: Yüksek Lisans
Tezin Yürütüldüğü Kurum: Hacettepe Üniversitesi, Mühendislik Fakültesi, İnşaat Mühendisliği Bölümü, Türkiye
Tezin Dili: İngilizce
Öğrenci: Arcan KÖROĞLU
Asıl Danışman (Eş Danışmanlı Tezler İçin): Baki Öztürk
Eş Danışman: Ersin Aydın
Özet:
Application of viscous dampers in structural and earthquake engineering as passive energy
dissipation devices has become popular in last couple of decades. Research on application
of viscous dampers in building structures to reduce seismic response started at 1990s.
Nowadays application of viscous dampers is still an important topic in the field of structural
and earthquake engineering. Viscous dampers are remarkably effective to reduce dynamic
response in building structures. Viscous damper applications in building structures has
two major objectives. These are designing more resilient structures and rehabilitating
existing structures. Design of viscous dampers are similar to the design of the structural
components of the building structures. Distribution of the viscous dampers has a great
influence on seismic behavior of the structure. Viscous dampers are expensive passive
energy dissipation devices; therefore, optimal damper distribution in building structure
is an important subject. Extensive research on optimum viscous damper distribution via
meta-heuristic search algorithms started at late 1990s. Application of meta-heuristic search
algorithms on optimal damper distribution problems has important advantages. These are
they do not require a preliminary design, they do not require gradient information, and they
require significantly low computational time when they are compared with exhaustive search
methods. In this thesis work a methodology based on peak inter story drift ratios is proposed
to rehabilitate building structures with soft story irregularity via optimal viscous damper
distribution. Soft story structural irregularity is a type of vertical structural irregularity that
is caused by abrupt stiffness changes between adjacent stories. These structures suffer from
severe structural damages after earthquakes due to abnormal peak inter story drift ratios.
This study proposes a methodology to keep peak inter story drift ratios in an allowable limit
by optimal viscous damper distribution. Two different meta-heuristic search algorithms are
utilized to find optimal viscous damper distributions. These are Differential Evolution and
Particle Swarm Optimization algorithms. The suggested methodology is numerically tested
in different structural configurations for different shear building data sets, and results are
compared with no viscous damper case and optimum damper distribution case.