Three-dimensional motion analysis systems and force plates are used for gait phase detection and ground reaction force(GRF) or ground reaction moment(GRM) data collection. But force plates as measurement systems are restricted to laboratory environments and have limitations for abnormal walking with foot dragging. Therefore the methods were proposed to compute the GRM from the kinematic data of three-dimensional motion analysis systems. Gait phase detection with kinematic data using foot velocity algorithm(FVA) was performed. The validity of gait phase detection was obtained comparing with the results of force plates. A gait model with 7 segments was composed to compute GRM. The results of gait model with kinematic data were compared with those of force plates. The result of the vertical direction is similar. But anterior-posterior direction and lateral direction show similar tendency with some gaps.

Flexural behavior of precast concrete sandwich wall panels (PCSW) can be divided into one way or two-way according to their aspect ratio. A total of five specimens were tested to find out the effects of design direction of shear connectors and the type of insulation on flexural behavior of PCSW. Design of shear connector in two-way direction has better performance in terms of initial stiffness than those of design of shear connector in one-way direction. Also, the specimens with extruded polystyrene (XPS) foam has higher performance in terms of initial stiffness and ultimate strength than those of the specimens with for expanded polystyrene (EPS) foam.