Due to construction limitations reinforced-concrete beams cannot be di
rectly cast to their full depth. To evaluate the effect of a two-step
casting procedure on the mechanical behavior of the reinforced-concret
e beams, six 3.84-m-long, reinforced-concrete beams were tested. Three
of the six beams were cast by the traditional method, and the remaini
ng three by a two-step casting procedure to simulate the site conditio
ns. It is found from the test results that the beams with the two-step
casting procedure have 3% greater average concrete-crushing load than
those with the traditional method, and the load-deflection relationsh
ips for both groups are almost identical. In conclusion, the effect of
two-step casting procedure on the mechanical behavior of reinforced-c
oncrete beams is insignificant.