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Steel-beam-to-concrete-filled-steel-tube-column Moment Connections in Japan
Toshiyuki Fukumoto 한국강구조학회 2005 International Journal of Steel Structures Vol.5 No.5
With respect to the ductility of concrete-filled steel tube (CFT) columns, insuficient evaluation formulas are indicated incomparatively easy methods of calculating the relationship between shear forces and deflections of CFT columns underconstant axial loads. This paper attempts to initiate a formal formulation of a CDC method with the following characteristics:reduction factors of the compressive strength of inner concrete, the falling branches after the compresive strength, elevationsthat are suficiently accurate for engineering aplications.
Improvement of Reality on Input Device for Virtual Walk System
Toshiyuki Hori,Tatsuya Furukawa,Hisao Fukumoto,Masashi Ohchi,Yoshiyuki Nakashima 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
In these days, elderly population is increasing in Japan. Demands on rehabilitation works might be larger as the old increase. In the authors’ laboratory, the Virtual Walk System has been designed and implemented. The system is intended to aid rehabilitation works with the Virtual Reality technology. Using commercially?supplied products, the proposed system is easy to be introduced to home with low costs and without occupying large space compared to the other rehabilitation systems introduced in the hospital. The present system supports a bicycle and a stepper, which enable cycling and walking exercises and moving in the virtual space.However, the conventional bicycle system didn’t support an operation to move right and left in the virtual space with its handlebar. Instead of operating it directly, users should operate a couple of switches mounted on the handlebar to move right and left. This has caused the unreality of using bicycle. In this study, the authors have improved a bicycle to enable an operation with a handlebar to move right and left in virtual space.