Pseudo-Static Test on Flat Columns Made of High-strength Concrete

Abstract:

In order to research seismic performance of flat column made of high-strength concrete, pseudo- static tests are conducted, which include six 1:3-scaled flat columns with different axial compression ratios, concrete strengths and shear span ratios. By observing the test phenomenon and analysising the data, the seismic performance of the columns including stiffness, skeleton curves, hysteresis curves, ductility and energy dissipation are obtained. It is concluded that flat columns have poor ductility and energy dissipation capacity. Based on the proper seismic measures, failure characteristic is compression-flexure destruction and the failure section conforms to the assumption of plane cross section.