A series of tests was conducted on six 2.7 m × 3.7 m shear wall specimens consisting of cold-formed steel framing sheathed on one side with sheet steel adhered to gypsum board and on the opposite side with plain gypsum board. The specimens were subjected to various sequences of simulated seismic shear deformation and fire exposure to study the influence of multi-hazard interactions on the later...

Recently, there have been a lot of earthquakes in Japan. It is necessary to promote seismic isolation devices for buildings. The devices have been hardly diffused in attached houses, because the devices are very expensive. We should develop a low-cost seismic isolation device for detached houses. We suggested a new seismic isolation device which uses a two-layer circular tube as a unit. If hyst...

BACKGROUND Lateral clavicle fractures have been reported after coracoclavicular (CC) ligament reconstructions with bone tunnels through the clavicle. PURPOSE To biomechanically compare clavicle strength following 2 common CC reconstruction techniques with different bone tunnel diameters. STUDY DESIGN Controlled laboratory study. METHODS Testing was performed on 2 groups of matched-pair ca...

background : experts and staff of rehabilitation centers often do their activities without following the appropriate ergonomic principles and the correct methods of manual load handling. therefore, gradually and with the repetition of these activities they place themselves at risk of musculoskeletal disorders. the aim of this research is the assessment of lifting capacity by the niosh equation ...

Abstract The aim of this study is to investigate the behavior RC concrete beams reinforced with basalt, carbon, glass fiber polymer bars and conventional steel. A comparison between results has been performed effect fire on considering following items: (flexural capacity, deflection crack pattern). It noticeable that use FRP significantly increased ultimate load specimens, where percentage incr...

Non-ductile reinforced concrete frames are commonly found in older buildings many parts of the world. These structures designed for gravity loads, have limited lateral strength and ductility, prone to excessive one-way movement soft-story mechanism. This paper focuses on retrofit an existing frame, using steel X-braces by direct internal connection method. The main purpose is analytical study g...

This paper presents the effectiveness of strengthening slab–column connections against punching shear failure with near surface–mounted (NSM) carbon fiber–reinforced polymer (CFRP) bars. The experimental program consists preparing and testing eight samples, two control, six strengthened samples. main variables experiment are layout cross-sectional area CFRP results show that NSM increases ultim...