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Cem Topkaya

Department of Civil Engineering
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Performance comparison of BRBFs designed using different response modification factors
Güner, Tuğberk; Topkaya, Cem (Elsevier BV, 2020-12-15)
This paper presents details of the numerical examination and performance comparison of steel buckling restrained braced frames (BRBFs) designed with different response modification factors, using the next-generation perfor...
Behavior of channel connectors in steel-concrete composite beams with precast slabs
Arıkoğlu, Pınar; Baran, Eray; Topkaya, Cem (Elsevier BV, 2020-09-01)
The use of precast decks in steel-concrete composite construction offers variety of advantages. Research to date has mostly focused on the use of headed stud connectors with hollow core precast decks for building structure...
The response of tall buildings to far-field earthquakes and the case of a 49-storey steel building
Muin, Sifat; Astaneh-Asl, Abolhassan; Topkaya, Cem (2020-06-01)
This paper investigates the seismic response of an instrumented 49-storey steel structure in San Francisco to weak, far-field, and strong, near-field ground motions. The instrumentation records obtained during the 1989 Lom...
An energy dissipating hold down device for cold-formed steel structures
Pehlivan, Barış Mert; Baran, Eray; Topkaya, Cem (Elsevier BV, 2020-03-01)
A two-phase experimental investigation has been conducted for the development and evaluation of a hold down device that has energy dissipating feature. Focus of the first phase was the development of the device itself, whi...
Nonsymmetrical loading protocols for shear links in eccentrically braced frames
Al-Janabi, Musab Aied Qissab; Topkaya, Cem (Wiley, 2020-01-01)
The AISC Seismic Provisions for Structural Steel Buildings (AISC 341-16) provide a testing protocol for qualification of link-to-column connections in eccentrically braced frames (EBFs). This symmetrical testing protocol w...
Stress resultants for wind girders in open-top cylindrical steel tanks
Zeybek, Ozer; Topkaya, Cem; Rotter, J. Michael (Elsevier BV, 2019-10-01)
Empty open-top cylindrical steel tanks are susceptible to buckling when subjected to external pressure due to wind or partial vacuum due to blocked vents. A "wind girder" is commonly used at the top of the tank wall to inc...
Strength and stiffness of floor trusses fabricated from cold-formed steel lipped channels
Dizdar, Cagan; Baran, Eray; Topkaya, Cem (Elsevier BV, 2019-02-15)
This paper reports findings of an experimental study on floor trusses fabricated from cold-formed steel lipped channel sections. In design, the members of these trusses are generally considered as pin-ended and their capac...
Analysis of silo supporting ring beams resting on discrete supports
Zeybek, Ozer; Topkaya, Cem; Rotter, J. Michael (Elsevier BV, 2019-02-01)
Elevated cylindrical metal silos are often supported on a ring beam which rests on discrete column supports. The ring beam plays an important role in redistributing the majority of the discrete forces from the column suppo...
Buckling assessment of cylindrical steel tanks with top stiffening ring under wind loading
Zeybek, O.; Topkaya, Cem (2019-01-01)
A stiffening ring is commonly used at the top of the tank wall to increase its strength against external pressure instability. Traditional design treatments generally consider cylindrical storage tanks under uniform extern...
Application of ring beam stiffness criterion for discretely supported shells under global shear and bending
Topkaya, Cem; Zeybek, Ozer (SAGE Publications, 2018-12-01)
Silos in the form of a cylindrical metal shell are commonly elevated to provide access to the space beneath. In general, a few discrete column supports at evenly spaced intervals are commonly utilized. The presence of disc...