外帯筋としてのアラミド繊維ベルトに緊張力を導入したRC短柱の耐震・応急補強法

概要

論文の詳細を見る
A new seismic or emergency retrofit method, in which aramid fiber belts are prestressed and used as external transverse reinforcement, is proposed in this paper. Five shear critical columns with shear span to depth ratio of 1.5 and poor transverse reinforcement, were retrofitted and tested under reversed cyclic lateral forces and constant axial load, simultaneously. The test results indicated that the proposed method could be a highly effective retrofit technique for RC columns with inadequate shear resistance or poor bond strength. Moreover, the experimental results for a retrofitted earthquake-damaged column showed that the proposed method, as an emergency retrofit technique, could restore the lateral strength of column. Finally, the calculated shear and bond strength based on AIJ design guidelines' equations and flexural strength by use of simplified equation and a fiber model were found in good agreement with experimental results.
社団法人日本建築学会の論文
2001-12-30