Başlık için Ph.D. Theses listeleme

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  • Fatigue analysis of on-shore wind turbine towers 
    Ajaei, Behrouz Badrkhani. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    A procedure for estimation of fatigue lives of bolts in flange connections of tubular steel wind turbine towers is developed in this research. The procedure includes numerical calculation of aerodynamic forces, and finite ...
  • Fiber reinforced plastic overlay retrofit of hollow clay tile masonry infilled reinforced concrete frames 
    Hanoğlu, Kemal Burak. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering , 2002., 2002.)
    Stiffness and strength contribution of hollow clay tile infills to ductile and non-ductile reinforced concrete frames were evaluated using 1:3 scale specimens tested under quasi-static reversed cyclic seismic loads. Four ...
  • Freight trip generation in urban areas 
    Günay, Gürkan. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Freight transportation planning and modeling in general, and Freight Trip Generation (FTG) in particular, is an area that is not covered as widely as passenger transportation. FTG mechanisms are different from passenger ...
  • Frictional behavior between geosynthetic reinforcement and facing blocks 
    Karaoğlan, Halil. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    Geosynthetic reinforced soil retaining walls (primarily those with precast con- crete block facing elements) reinforced by geogrids or geotextiles are in a period of rapid growth. The construction of geosynthetic reinforced ...
  • Full scale modeling of geotextile reinforced lime stabilized cohesive soil retaining wall 
    Ismeik, Muhannad Hisham. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1996., 1996.)
    In this research, a reinforced soil retaining structure, "Kilyos Wall" is studied. It is the first known geosynthetic reinforced wall to be instrumented and tested in Turkey. Lime stabilized cohesive clay is used as a ...
  • Highway embankment construction using fly ash and snow in cold regions 
    Saygılı, Altuğ. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    During winter season, due to workability problems, it is very hard to continue construction. Water needed for compaction will be very hard to handle. However, snow is readily available on site. With Type C fly ash, snow ...
  • Hybrid tracking controller with attached TMD 
    Bozer, Ali. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Supplemental damping systems can be substitute for hysteretic or kinetic damping and eliminate the need for additional strength and stiffness for desired performance levels. Supplemental dampers dissipate the energy ...
  • In-soil strength and behaviour of geosynthetic reinforcements 
    Yardımcı, Tolga. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    In this study, in-soil tensile strength and behaviour of various geosynthetic re inforcements is investigated with the help of custom designed and developed in-soil tensile test apparatus in the laboratory. The proposed ...
  • Incremental area method approach for the determination of aquifer parameters and aquifer systems identification 
    Şahin, A. Ufuk. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    Groundwater is one of the main freshwater resources for the demand of potable water, agriculture and industry. The protection and remediation of groundwater sources have become an important issue in order to provide ...
  • Infinite elements in finite element method 
    Erkal, Aykut. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    It is natural and common to idealize stress or field problems into finite element models with rigid boundaries remote from the area of interest. However, the degree of accuracy of solutions may be significantly increased, ...
  • Influence of dilatancy on slip planes and on localization of strains 
    Altunbaş, Adlen. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    Correct calculation of slip plane geometry plays a key role in the design of geotechnical structures. The goal of this study is the identi cation of slip planes in cohesionless soils retained behind walls and quantifying ...
  • Influence of grain characteristics on stress-dilatancy relationship and failure surface geometry 
    Arda, Çağdaş. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Stress-dilatancy relationships of granular soils are influenced by both mechanical and physical soil properties. However, existing empirical correlations which define the influence of dilatant behavior on soil strength ...
  • Influence of shear deformations in plate bending 
    Kaya, Erdem. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    The influence of shear deformations in plate bending becomes significant when the ratio of the thickness to span is relatively large. However, the effects of transverse shear strains are neglected normally in classical ...
  • Integration of public transportation using autonomous vehicles 
    Fidanoğlu, Akif. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2021., 2021.)
    While public transportation (PT) plays a critical role in urban mobility, the discomfort and the disutility of the last-mile trips make PT unattractive. We investigate the feasibility of shared autonomous vehicles (AV) ...
  • Internal erosion of geosynthetic clay liners under high hydraulic heads 
    Özhan, Hakkı Oral. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    A geosynthetic clay liner is a material composed of a thin layer of bentonite sandwiched between two layers of geotextiles. Low hydraulic conductivity of the bentonite in GCLs makes them more impermeable. Geosynthetic clay ...
  • Investigation of dynamic behavior of back to back reinforced soil retaining walls with finite element and artificial neural network 
    Öztürk, Tahir Erdem. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    Back-to-back Mechanically Stabilized Earth (MSE) wall are commonly used for bridge approach embankments. By the means of not only aesthetically pleasing appearance but also satisfactory performance under seismic loading ...
  • Investigation of dynamic behavior of geosynthetic reinforced soil retaining structures under earthquake loads 
    Enünlü, Ali Kasay. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    Due to their advantageous engineering properties and cost effectiveness large numbers of Geosynthetic-Reinforced Soil Retaining Walls (GRS-RWs) are being designed and constructed throughout the world and also in our country. ...
  • Investigation of fatigue and durability properties of concrete containing recycled concrete aggregate 
    Pehlivan, Ahmet Onur. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    Population growth and construction industry have grown beyond limits in recent decades which lead to depletion of natural resources with increasing pace. Since this resembles a serious conflict with the desired sustainability ...
  • Investigation of the effects of transportation investments on real estate prices :|case study Beylikdüzü & Esenyurt 
    Şahin, Onur. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Transportation investments provide many bene ts such as economic growth and less commuter costs. The goal of this study is to determine and measure the e ect of transportation systems on real estate prices. The parameters ...
  • Mechanical and rheological properties of steel fibre reinforced self - compacting concrete 
    Niş, Anıl. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2017., 2017.)
    Main objective of the research was to further understand the different parameters affecting performance of SFR-SCC with different steel fiber volumes and types. Fresh and hardened state properties of these materials were ...

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