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No.12 (1976/09) >

Authors :Hamada, Sumio
Longworth, Jack
Authors alternative :浜田, 純夫
Issue Date :28-Sep-1976
Abstract :Present design specifications for composite beams are based to a large extent on elastic theory. Elastic design is not entiely routine in the case of continuous beams, because the beam stiffness is different in positive and negatiue moment regions. An ultimate design approach elimnates this complication. The present investigation was planned with particuiar reference to the effect of longitudinal slab reinforcement on ultimate strength, failure modes and general behavior. Three two-span beams were tested under concentrated loads applied at the midsqan. From the test results main conclusions are; (1) The test beams exceeded the theoretical ultimate load based on simple plastic theory. (2) Principal failure modes in continous composite beams are crushing of concrete in positive moment regions and local flamge buckling in negative moment regions. The primary failure is affected by the amount of longitudinal slab reinforcement.
Type Local :紀要論文
ISSN :0387-429X
Publisher :琉球大学理工学部
URI :http://hdl.handle.net/20.500.12000/26714
Citation :琉球大学理工学部紀要. 工学篇 = Bulletin of Science & Engineering Division, University of the Ryukyus. Engineering no.12 p.79 -90
Appears in Collections:No.12 (1976/09)

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