Engineering Commons^™

Effect Of Helical Pitch And Tensile Reinforcement Ratio On The Concrete Cover Spalling Off Load And Ductility Of Hsc Beams, Nuri M. Elbasha, Muhammad N. S Hadi

Faculty of Engineering - Papers (Archive)

[extract] In recent years a marked increase in the use of High Strength Concrete (HSC) has been evident in Australian building construction despite the fact that the current Australian design standard, AS3600 provides no design rules. HSC has been used extensively in civil construction projects world wide because it reduces the cross section and the weight for long construction members.

High strength concrete and high strength steel are used together to increase the load capacity and reduce the beams' cross section. Using these two materials to design over reinforced beams will lead to huge reduction of cost, which is a …

Flexural Ductility Of Helically Confined Hsc Beams, Nuri Elbasha, Muhammad N. S Hadi

Faculty of Engineering - Papers (Archive)

The ductility of HSC beams is enhanced through the application of helical reinforcement located in the compression region of the beams. The diameter and pitch of helix are important parameters controlling the level of ductility enhancement of over reinforced high strength concrete beams. This paper presents an experimental investigation of the effect of helix pitch and diameter on the beam behaviour through testing 10 helically confined full scale beams. Two groups of five beams each had exactly the same geometry and reinforcement; with the only differences being the diameter and pitch of the helices. For one group the helix was …

Composite Action Of Structural Steel Beams And Precast Concrete Slabs, Brian Uy, M. A. Bradford

Faculty of Engineering - Papers (Archive)

The innovative composite behavior between structural steel beams and precast concrete slabs for multi-storey buildings is discussed. The issues that need to be resolved in order to establish composite behavior as well as suggestions for future course of action are highlighted.

Composite Steel-Concrete Beams And Columns Fabricated With High Strength Steel (Hss) Plate, Brian Uy

Faculty of Engineering - Papers (Archive)

High strength quenched and tempered structural steel has seen widespread implementation in heavily loaded columns in multistorey building construction. However, many current international codes do not cater for the use o f high strength steel and thus much needed research is required to give structural engineers the confidence to use this new and innovative material in a safe and efficient manner in construction. Herein, experiments and analytical studies on composite steel-concrete composite beams and recommendations for modified . design procedures will be summarised. This paper will also provide a comprehensive summary of experimental results on the uses of high strength …