Seismic performance of reinforced concrete bridge piers under simulated winter conditions.

摘要

Knowledge on the combined effects of high strain rates and low temperatures on the behaviour of reinforcing steel and concrete are rather limited. Previous research focused on observed strength increases of either strain rate or temperature, with little or no attention given to the deformational behaviour of the combined effects of these variables. Therefore, monotonic tensile tests on reinforcing steel bars and compressive tests on concrete cylinders were performed under various combination of earthquake-type strain rates (quasi-static to 0.1/s) and temperature typical of Eastern North America (+20