M.Sc. Tezi Görüntüleme
Although high performance concrete (HPC) is commonly used, its properties are notknown as much as the properties of ordinary concrete. Indeed, most of equations, rules and
suggestions given in codes used in the design of reinforced concrete and prestressed concretestructures are developed from the data obtained from experimental studies made on concrete
that have a strenght of less then about 50 MPa. Especially, the reason of the monoloticalstructure and non-lineer-elastic behaviour of concrete, the equations used for design, arent
convenient for the HPC members.Most structural members have been affected by torsional effects for the reasons of the
nonsimetrical loadings and structural geometries. Genarally these effects are not effective asmuch as the other sectional effects in a member. Torsional resistance are able to increased by
using HPC. But, the main purpose of these study is to investigate of whether torsionalresistance is able to increased or not by using different reinforcement.
The study consists of five chapters. In the first chapter, genereal information is presented.In second chapter, experimental setup, producing high performance reinforced conrete beams
and torsion mechanism are desciribed. In the third chapter, experimental findings arepresented by graphics and photos, some examines are realized on findings, and a new
approximation is presented to predict torsional moment in this chapter. The conclusionsdrawn from the results of this study and suggestions are presented in fourth chaper. This last
chapter is followed by the list of refences.The conclusions obtained from this study showed that, different reinforcement
arrangements change the behaviour of the HPC in pure torsion. While some arrangementsare change the strength and another some are change the deformation behaviour. Furthermore,
a new formulation is proposed to predict the torsional moment capacity of beams made ofHPC.
Key words : High Performance Concrete, Torsion, Pure Torsion, Torsional Moment,Reinforcement Arrangement.