000			01980aab a2200193 4500
008			240604b20042004|||qr||| |||| 00| 0 eng d
022			_a1598-8198
100			_aF. T. K. Au _9882219
100			_aA. K. H. Kwan _9882220
245			_aA Minimum Ductility Design Method For Non-Rectangular High-Strength Concrete Beams
300			_a115-130 p.
520			_aThe flexural ductility of solid rectangular reinforced concrete beams has been studied quite extensively. However, many reinforced concrete beams are neither solid nor rectangular, examples includeT-, -, - and box-shaped beams. There have been few studies on the flexural ductility of nonrectangular reinforced concrete beams and as a result little is known about the possible effect of sectional shape on flexural ductility. Herein, the effect of sectional shape on the post-peak flexural behaviour of reinforced normal and high-strength concrete beams has been studied using a newly developed analysis method that employs the actual stress-strain curves of the constitutive materials and takes into account the stress-path dependence of the stress-strain curve of the steel reinforcement. It was revealed that the sectional shape could have significant effect on the flexural ductility of a concrete beam and that the flexural ductility of a T-,T-, II- or box-shaped beam is generally lower than that of a solid rectangular beam with the same overall dimensions and the same amount of reinforcement provided. Based on the numerical results obtained, a simple method of ensuring the provision of a certain minimum level of flexural ductility to non-rectangular concrete beams has been developed.
650			_aFlexural Ductility _9171783
650			_aHigh-Strength Concrete
650			_aReinforced Concrete Beams _962946
773	0		_dDaejeon, Korea : Techno Press _tComputers and Concrete: An International Journal _x15988198
856			_uDOI: 10.12989/cac.2004.1.2.115
942			_2ddc _n0 _cART _o14993 _pMr. Muhammad Rafique Al Haj Rajab Ali (Late)
999			_c815231 _d815231