NUMERICAL ANALYSIS OF ENERGY ABSORPTION CAPACITY OF EXPLOSIVE DAMAGED REINFORCED CONCRETE BEAMS WITH LOCAL WAVED REBAR
The energy absorption capacity of ordinary reinforced concrete beams and corrugated reinforced concrete beams after explosion damage is analyzed,in which the blast resistance performance of corrugated reinforced con-crete beams is obtained. The finite element models for ordinary reinforced concrete beams and wave induced rein-forced concrete beams,respectively. A load combination of explosive loading followed by four point bending loading is set up. The overall damage process of ordinary reinforced concrete beams and wave reinforced concrete beams un-der different parameter combinations was compared and studied with varied parameters including,wave height,wave angle,TNT equivalent,steel,and concrete strength,in which the formation and development process of plastic hing-es in the wave reinforcing steel is analyzed. Meanwhile,the energy absorption values of two types of reinforced con-crete beams under different parameter combinations are calculated,the energy absorption capabilities of which is compared. The results show that the energy absorption capacity of reinforced concrete beams after explosion damage is higher than that of ordinary reinforced concrete beams after explosion damage. The higher the wave vector,the smaller the wave angle,and the higher the strength of steel and concrete;the smaller the TNT equivalent,the stron-ger the residual energy absorption capacity of reinforced concrete beams after explosion damage.
reinforced concrete beams with kinked rebarcommon rebarresidual energy absorption capacity
万方数据
维普
