Lightweight cold-formed steel (CFS) framing is an effective building solution for low and mid-rise structures. However, systems level response and component contributions as well as their interactions such as those from lateral-load resisting systems, floor diaphragms, studs to track connections, etc., are not fully understood. Existing building codes for the CFS frame buildings are based solel...

Abstract In this paper, the parameters optimization of a tuned mass damper (TMD) is presented to enhance seismic performance six-story steel structure based on ductility damage index. Herein, frame modeled nonlinearly in OpenSees software by concentrated plasticity model. Finally, most suitable algorithm selected among several algorithms convergence rate and objective function's values. process...

As a composite material, the damping energy consumption mechanism of fiber reinforced polymer-confined concrete (FRP-C RC) structure is very complex. In previous dynamic calculation models, bond-slip effect for steel bars was often ignored, which would lead to considerable error in response FRP-C RC structures. this paper, new numerical model columns considering established using zero-length el...

A methodology of data-driven damage state quantification with a probability estimation for structural hysteresis RC columns is presented in this paper. The knowledge learned from large-volume behavior database fully considered developing monitoring-oriented indicators, the established relationship between prediction and physics-based evaluation. In present study, 1015 different design parameter...

To study the strengthening effect of carbon fiber composite materials (CFRP) on recycled concrete columns subjected to different levels seismic damage, four column specimens were designed for pseudo-static tests. The categorized as non-destructive without (prototype), strengthening, medium damage and severe based replacement rate aggregates level damage. characteristics deformation performance ...