METHOD AND SYSTEM FOR EVALUATING PLASTIC DEFORMATION CAPABILITY OF MEMBER

To provide a method and a system for evaluating the plastic deformation capability of a member, in which the plastic deformation capability of the member can be appropriately evaluated.SOLUTION: An evaluation device 20 includes a control part 21 for evaluating the plastic deformation capability of the steel frame beam which is buckled and deformed by applying an external force. A control part 21 evaluates the plastic deformation capability by using the standard deviation of the strain distribution in an evaluation target region in a lower flange of the steel frame beam. In this case, the region, which is specified by a first length between more than or equal to half the beam height and less than or equal to the beam height of the steel beam and a second length corresponding to the width of the steel beam from a point where the steel beam joins to a pillar, is used as an evaluation object region.SELECTED DRAWING: Figure 1 【課題】部材の塑性変形能力を適切に評価することができる部材の塑性変形能力の評価方法及び評価システムを提供する。【解決手段】評価装置２０は、外力を加えることにより座屈変形する鉄骨梁の塑性変形能力を評価する制御部２１を備える。制御部２１は、鉄骨梁の下フランジにおける評価対象領域のひずみ分布の標準偏差を用いて、塑性変形能力を評価する。この場合、評価対象領域として、鉄骨梁が柱と接合する箇所から、鉄骨梁の梁せいの半分以上梁せい以下の間の第１長さと、鉄骨梁の幅に対応する第２長さとによって特定される領域を用いる。【選択図】図１