Basic test on the dynamic strength of R/C square columns under biaxial bending
Hirasawa Ikuo; Kanoh Masao; Fujishiro Masahiro
Abstract:The objective of this paper is to evaluate the dynamic strength of model columns under biaxial bending. Dynamic and static tests were conducted on reinforced concrete square columns. Dynamic tests were carried out by shaking table test method and static tests were carried out by actuator test method under repeated loading with the same maximum displacement corresponding to each dynamic test. From the test results, the ratio of dynamic maximum strength to static strength at strain rate of 0.1/sec is about 1.12 - 1.17. It is shown that the proposed analytical method is applicable to estimating dynamic maximum strength of columns by using the enhanced stress-strain curves. Key Words:reinforced concrete column, dynamic strength, biaxial bending