| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve an energy absorbing capacity of a reinforcement at a beam end of a reinforced concrete beam. <P>SOLUTION: A load is applied to a reinforced concrete beam 50 to centrifugally distort a plastic hinge part of a beam end 52. Thus, when a main reinforcement 40 is extended and yields, a yielding area is turned into a plastically-deformed area. When a tensile force acts on the beam end 52 to bring about a plastic hinge state, an unbonded area portion 42 of the main reinforcement 40 exposed in a recess 54 between anchoring members 60 and 60 is plastically deformed to absorb energy, without being bound by concrete. <P>COPYRIGHT: (C)2013,JPO&INPIT |
