In recent years, high strength steels, whose tensile strength is more than 780 MPa, have been developed in Japan, and are used mainly for columns of high rise building st [...]

Steel moment frames should be designed to ensure sufficient energy absorption capacity by achieving an entire beam-hinging collapse mechanism under severe earthquakes. Th [...]

Seismic floor system, which can decrease seismic responses (e.g., story drift, absolute acceleration on the floor, and stress of members) by means of inserting visco-elas [...]

Buckling-restrained brace (BRB), which satisfies criteria of preventing flexural buckling of restraining member, can form out-of-plane buckling mode if stiffness of eithe [...]