It is now essential to design any structure earthquake resistant due to the quick rise in vertical development and rising likelihood of earthquakes. Various conventional lateral force-resisting systems address horizontal forces and diagrids composed of intersecting concrete or metal ribs have emerged as an effective means to withstand such forces. Previous studies primarily analyzed the impact of internal core types in diagrid structures using a single bracing configuration and response spectrum analysis. This study expands on prior research by evaluating four different bracing types through nonlinear static analysis, using ETABS FEA program. 60 storied steel buildings in seismic zone V with medium soil conditions are assessed to examine the influence of braced and moment cores on the seismic performance of diagrid structures positioned at angles of 49.39°, 60.25° and 66.8°. Different configurations of braced cores like V, Chevron, X and eccentric bracings and the best configured braces decided post analysis as buckling restrained braces are considered for the study and steel shear wall as moment core. Key focus areas include capacity curves, hinge formation, ductility ratio, structural displacement at performance point and performance levels. Findings indicate braced core walls exhibit superior performance when configured in an X pattern. The incorporation of BRBs in core of the structure increases ductility and displacement at performance point by 12.50 and 42.39% for D49.39-group, 23.3 and 48.98% for D60.25-group and 22.17 and 50.87% for D66.8-group of models. This study highlights improved seismic resilience of diagrid buildings with BRBs and X bracing at the core.