Experimental study and FEA on mechanical behavior of H-steel reinforced concrete beams at early-age.

In order to investigate the mechanical behavior of C40 SRC beams at early-age, seven steel reinforced concrete beams which contain H-steel were tested by monotonic static test on 1, 3,7 and 28 days of curing. Load-displacement curves, load-strain curves and influence of beams early loading on its later behavior were analyzed through the tests. The test results show; for the C40 SRC beams the 1-day strength can reach 75. 5% of the 28-day strength by adding early strength agent, the early loading to the beams has little effect on their later 28-day strength. Based on the test results, the nonlinear finite element analysis software ABAQUS was used to simulate the behavior of the specimens. The experimental results have good agreement with those simulated by ABAQUS. [ABSTRACT FROM AUTHOR]