補修・補強(構造)Ⅰ

[2203] A STUDY ON RESIDUAL CAPACITY OF REINFORCED CONCRETE CORBEL FAILED BY ANCHORAGE SPLITTING FAILURE

座長(土木)：佐藤貢一
座長(建築)：楠浩一
講演者：Liyanto EDDY¹, 長井宏平², Ram Chandra NEUPANE¹ (1.The University of Tokyo 2.東京大学)

キーワード：corbel, residual capacity, anchorage splitting failure, Rigid Body Spring Model, コーベル, 残留強度, 定着部の割裂破壊, RBSM

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Some bearing pads were installed at the free end of the corbel and an anchorage splitting failure occurs. However, if the bearing pad is moved to the straight portion of the flexural reinforcements of the corbel, there is a possibility that the corbel is still able to resist the load, which is called residual capacity. In this study, the residual capacity of a reinforced concrete corbel, failed by an anchorage splitting failure, is investigated, both by experimental work and numerical simulation. By the simulation, using RBSM, different crack failure patterns can be simulated due to different positions of bearing pads. Eventually, the residual capacity of the corbel failed by the anchorage splitting failure is still very large. The option to move the bearing pad to the straight portion of the flexural reinforcements of the corbel can be a simple way for recovering the capacity of a corbel failed by the local failure.