鋼管と帯筋で二重に拘束したRC柱の弾塑性挙動
1997 年 62 巻 500 号 p. 83-89
詳細
1997 年 62 巻 500 号 p. 83-89
This paper summarizes test results and discusses the elastoplastic behavior, such as lateral strength, ductility and energy absorption capacity, of doubly confined R/C column in steel tube and hoops. The experimental results are compared with the theoretical results. The experimental results have conducted the following remarks. (1) If the amount of transverse reinforcement steel is almost the same, the double confinement method by steel tube and hoops will be superior to the single confinement method by steel tube only on the seismic behavior of the test specimens. (2) The double confinement requires higher strength concrete in order to enhance seismic performance for columns. According to the calculation results, the higher concrete strength is desired to be at least over 30 MPa in cylinder strength of the concrete. This suggestion is approved through the experimental test.
