Dynamic performance of angle-steel concrete columns under low cyclic loading-I:Experimental study

摘要

This paper describes low cyclic loading testing of nine angle-steel concrete column (ASCC) specimens. In the tests, the influence of the shear-span ratio, axial compression ratio and shear steel plate ratio on the hysteretic behavior, energy dissipation, strength degradation, stiffness degradation, skeleton curve and ductility of the ASCCs is studied. Based on the test results, some conclusions are presented. The P-Δ and sectional M-φ hysteretic models for the ASCCs are presented in a companion paper (Zheng and Ji, 2008).