Abstract: Characteristics of a reinforced concrete structure are received. FEA model is created in a computer system accordingly. FEA model contains solid elements defined solid nodes and beam elements defined by master beam nodes. Beam elements representing reinforcing steel bars are embedded inside solid elements representing concrete. Each beam element straddles one or more solid elements. Slave beam nodes along the at least one beam element are created such that each of the solid elements houses at least one slave beam node. Numerically-simulated structural behaviors of the reinforced concrete structure are obtained at each solution cycle of the time-marching simulation. Proper coupling of solid elements and at least one beam element are ensured. Exchanges of masses and momentums between a slave beam node and corresponding solid element nodes is conducted with both consistent and non-consistent portions.