Dynamic behavior and design of frame structures with partially restrained connections, with emphasis on the effect of floor slab elements. Behavior of reinforced concrete beam-column connections under large lateral loads, with emphasis on the effects of bond deterioration and slip. Rating and strengthening of existing bridge structures with emphasis on the durability, serviceability, shakedown, and post-elastic strength aspects and the use of composite materials. Serviceability criteria for composite floor systems, including long-term deflections due to creep and shrinkage. Behavior and performance of prestressed concrete girders, with emphasis on effects of high strength concrete and shear/anchorage problems associated with large prestressing forces. Testing of full-scale and model structures in the laboratory, and field instrumentation of structures.