Structures subjected to seismic forces must have adequate strength and stiffness to control inter storey drift in order to prevent damage to structural and nonstructural elements during excitations. Linked column concept for steel structures was proposed by Peter Dusicka et.al(2009) with the objective of utilizing replaceable components that are strategically placed to protect the gravity load ...

Connections in x-braced shear walls play a crucial role in the seismic performance of lightweight structures: they should be strong enough to allow energy dissipation via plastification of the diagonal straps. An extensive experimental research on tensile screwed joints between straps is reported here. Two dominant failure modes are identified: (1) tilting and net section failure (T+NSF) and (2...

An innovative lateral force resisting system is investigated that allows steel braced frames to uplift and rock on their foundation, partially isolating the frame. Passive energy dissipation devices are implemented at the uplifting location to control the rocking response to within allowable limits. The structure’s gravitational forces provide an inherent restoring force during the rocking resp...

Eccentrically braced frames (EBFs) are typically employed in seismic design because they integrate the benefits of concentrically and moment-resisting frames, providing both high elastic stiffness ductility. However, effect fire on structural stability EBFs has not been well documented. Object-oriented techniques used software program development have become popular recent years, primarily thei...

Seismic codes were developed to reduce the structural vulnerability and risk associated with earthquakes in earthquake-prone regions of world. The effectiveness code preventing damage is dependent on performance level defined construction technology employed. seismic fragility curves for two recent versions Iran are determined by using hybrid method. probability levels visualized these curves. ...

A new vibration control system, Damped braced tube is developed for adopting on super high-rise buildings in central Tokyo. This system consists of frame using elastic braces and damped slit where a portion are replaced by dampers. acting as link beam coupled shear wall can dissipate seismic energy very efficiently contribute to succeeding meet higher criteria. paper describes outline efficienc...

BACKGROUND Despite several studies with different methods, the effect of functional knee braces on knee joint kinematics is not clear. Direct visualization of joint components through medical imaging modalities may provide the clinicians with more useful information. OBJECTIVES In this study, for the first time in the literature, video fluoroscopy was used to investigate the effect of knee br...

Steel plate shear walls (SPSWs) in buildings are known to be an effective means for resisting lateral forces. By using un-stiffened walls and allowing them to buckle, their energy absorption capacity will increase significantly due to the postbuckling capacity. The post-buckling tension field action of SPSWs can provide substantial strength, stiffness and ductility. This paper presents the Fini...