This paper discusses the suitability of two optimization methods for use in seismic retrofit location selection. The structure for analysis is modelled after a seven story RC structure in California, USA, built according to 1964 Los Angeles City Building Code. The OpenSees parallel computing software package is used to model the dynamic behaviour of a test structure. Past earthquake records are...

Unreinforced masonry (URM) buildings are susceptible to extraordinary actions such as earthquakes compared steel or reinforced concrete buildings. Various methods have been developed for the computational analysis of URM in last few decades. The equivalent frame method (EFM) is one numerical modeling approaches widely used nonlinear analyses Different macroelements context EFM proposed. However...

Endplate moment connections with shape memory alloy (SMA) bolts provide self-centering for the seismic resilience of structures. Predicting response these new beam–column connections, which have not been codified yet, requires conducting experimental tests or detailed continuum finite-element simulations. Computationally efficient predictive tools are needed to facilitate analysis, design, and ...

Seismic protective devices in the form of isolation and supplemental damping devices can be effective means in mitigating the seismic responses of structures. The required stiffness and damping values to achieve optimal performance depend on the characteristics of structures and ground motions. Instead of using actively controlled devices, one can select the passive devices to roughly mimic the...

Sustainability addresses the need to reduce structure’s impact on environment but does not environment’s structure. To explore this relationship, study focuses quantifying of green roofs or vegetated seismic responses such as story displacements, interstory drifts, and floor level accelerations. Using an archetype three-story steel moment frame, nonlinear time history analyses are conducted in ...