Several studies have been devoted to calibrate damage indices for steel and reinforced concrete members with the purpose of overcoming some of the shortcomings of the parameters currently used during seismic design. Nevertheless, there is a challenge to study and calibrate the use of such indices for the practical structural evaluation of complex structures. In this paper, an energy-based damag...

In this study, a viscoelastic damper (VED) is developed by using a VE material with low temperature dependence, and a performance-based placement-design procedure of VEDs is developed for finding the story-wise distribution of VEDs in a building such that each peak interstory drift coincides with the prescribed value. The mechanical properties of the employed VEDs dependence on amplitude and fr...

An explicit design procedure of cross-sections framed tube high-rise buildings via an inverse problem approach is presented. In the formulation, interstory drift ratios and net deformations beams are prescribed. The derived expressions clearly express three-dimensional effect (tube effect) from orthogonal frame. helpful for preliminary because rationally rapidly provided a set target without tr...

Abstract Buildings with re-entrant corners are used when maximum utilization is done over minimum available space. These come under the plan irregularities of structures. Plan irregularity (or) Vertical makes vulnerable seismic loading. Structural an important factor in that structure’s performance structure. This study aims to gain behaviour building L-shape floor by checking response demands ...

The viscous-hysteretic hybrid (HVH) damper system recently introduced by one of the authors has a clear property that, when hysteretic dampers with gap mechanism become active (stiffness element starts working), acceleration building frames this as stopper attains large values in spite advantageous feature to prevent excessive deformation. It is therefore desired that both maximum interstory dr...

BACKGROUND Mortality from cardiovascular diseases is higher among immigrants than native Swedes. It is not clear whether the high mortality persists from the country of birth or is a result of migration. The purpose of the present study was to analyse whether all-cause and coronary heart disease mortality differ between immigrants in Sweden and in the country of birth. METHODS Two cohorts inc...

Due to low stiffness of braces after yielding, the structures with buckling-restrained braces (BRBs) experience high residual drifts during an earthquake, which can be intensified by aftershocks and causes considerable damages to structures. Also, due to poor distribution of stiffness, this problem is exacerbated for irregular structures. Recently, the yielding brace system (YBS) has been intro...

Masonry-infilled reinforced concrete frames represent a very common construction typology across the Mediterranean countries. The presence of infills substantially modifies global seismic performances buildings in terms strength, stiffness, and energy dissipation. Although several research studies focused on overall infilled frames, modeling infill panels remains an open issue due to complex in...

Ion permeation and conduction were studied using whole-cell recordings of the M-current (I(M)) and delayed rectifier (IDR), two K+ currents that differ greatly in kinetics and modulation. Currents were recorded from isolated bullfrog sympathetic neurons with 88 mM [K+]i and various external cations. Selectivity for extracellular monovalent cations was assessed from permeability ratios calculate...