چکیده مقاله
With the advent of advanced mineral and chemical admixtures, the strength level of concrete has been raised dramatically and high strength concrete HSC is becoming more and more commonly used However, HSC is generally more brittle than normal strength concrete In the flexural design of reinforced concrete beams, apart from the provision of adequate strength, it is also necessary to provide a certain minimum level of ductility In fact, it has been shown that the use of HSC, if not properly controlled, could significantly reduce the flexural ductility of reinforced concrete beams A number of six heavily steel reinforced high strength concrete, HSC beams with different percentage of ρ and ρ′ were cast and incrementally loaded under bending A test series with heavily reinforced concrete beams under fourpoint bending was performed to examine the ductility of structure During the test, the strain on the concrete middle face and on the tension and compression bars and also the deflection at different points of the span length were measured up to failure Based on the obtained results, the displacement and energy ductility of the HSC members are more deeply reviewed
کلیدواژهها
نویسندگان
Yasser Sharifi
PhD Candidate of Shahid Bahonar University of Kerman, Kerman, Iran
رضا رهگذر
Civil Engineering Department, Shahid Bahonar University of Kerman, Kerman, Iran
شیوه ارجاع
Sharifi, Yasser and Rahgozar, Reza,1388,Energy Ductility of HSC Heavily Steel Reinforced Members under Bending,8th International Congress on Civil Engineering,Shiraz
ارائهشده در
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