This paper aims to guide structural engineers on how apply the rapid nonlinear time history analysis (RNLTHA) procedure effectively predict seismic demand, taking into account ductility and overstrength, effects of dynamic phenomena including cyclic degradation strength stiffness in structures, a direct expedient manner. The shortcoming conventional force-based approach design involving use for...

This paper aims to assess the structural overstrength (R), seismic behaviour factor (Q), and effective inertia (keff), of which elastic stiffness (Keff) is a function, i.e., Keff reinforced concrete (RC) cantilever columns with solid circular sections in urban bridges. The R Q factors proposed design codes have been based mainly on an empirical basis. However, some studies suggest that, case RC...

A seismic-resistant steel frame with energy-dissipating, chevron-type braces is proposed. The are equipped replaceable hourglass-shaped pins made of duplex stainless steel. Under design seismic loading, energy dissipated through inelastic deformations confined in the while other members remain essentially elastic. As a result, exhibits high post-yield stiffness due to inherent properties stainl...

Recent earthquakes as the 2012 Emilia earthquake sequence showed that recently built unreinforced masonry (URM) buildings behaved much better than expected and sustained, despite maximum PGA values ranged between 0.20–0.30 g, either minor damage or structural is deemed repairable. Especially low-rise residential commercial with a code-conforming seismic design detailing in general very well wit...

Abstract An efficient implementation of the capacity design requires high ductility combined with a low overstrength critical regions. Conventional timber connections do not generally offer such ideal combination, resulting in modest behaviour and relatively factors. Inspired by Buckling Restrained Brace new hold-down has been developed where wall directly acts as casing. The given an adaptive ...

Nonlinear static analysis is a validated tool for the seismic evaluation of existing and new structures, specifically reinforced concrete buildings. In order to assess performance frames designed according Venezuelan code, configurations low-, medium-, high-rise buildings are subjected 20 different load patterns considering nonlinear behavior FEMA P695. A total 140 frame models were analyzed us...

To improve the durability and serviceability of reinforced concrete structures, different variants dual-phase reinforcing steel were developed within research project NEWREBAR. The investigated variant new material, termed DPD2 steel, has a specific microstructure that increases corrosion resistance, but its yielding strength is less than Tempcore B500B. no plateau, which characteristic convent...

This paper presents a simple displacement-based seismic design method for RC frames with steel damper column. As numerical example, two 10-story frame building models are shown. The results of nonlinear time-history analysis show that the peak displacement at equivalent height is close to target displacement. strength demand beam ends connected columns, and beam-damper column joints, calculated...