Abstract A major cause of local to total damages is related structural pounding in a large number past earthquakes. In general, these collisions take place as result differences the dynamic characteristics colliding structures. To acquire better perception behavior structures, this paper, three structures featuring different heights are modeled series and with various configurations next each o...

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...

This research aims to investigate the extent that an incorrect assumption for soil type may endanger seismic safety of moment-resisting steel frame structures using probabilistic assessment. To this aim, first, a set were designed site class C. The examined 3-, 6-, and 9-storey frames according ASCE7-16. Then, assuming actual had been B, C, or D, vulnerability assessments performed OpenSees sof...

The femAB operon codes for two nearly identical approximately 50-kDa proteins involved in the formation of the staphylococcal pentaglycine interpeptide bridge. Sequencing and analysis of the femA region of mutants isolated by chemical mutagenesis and selection for lysostaphin resistance revealed point mutations leading to the expression of truncated FemA proteins. These femA mutants, although s...

Seismic screening, evaluation, and rehabilitation design of two existing wood-framed structures are performed using FEMA 154, FEMA 356, ASCE/SEI 31, and the 1997 UBC. FEMA 154 screening demonstrates the importance of examining construction drawings. Plans revealed a structural deficiency, but screening alone indicated no further evaluation is needed. Demand-to-capacity ratios for shear walls an...

Performance coefficients are widely used in seismic design codes to achieve performance objectives. The values of these have significant importance achieving pre-specified goals. Studies shown that near-fault earthquakes decrease the ductility and increase risk failure structures; however, current use same structures against near- far-fault records. In present study, 1-, 5-, 10- 15-story specia...

Abstract Nowadays, retrofitting-damaged buildings is an important challenge for engineers. Finding the optimal placement of Viscous Dampers (VDs) between adjacent structures prone to earthquake-induced pounding can help designers implement VDs with optimizing cost construction and achieving higher performance levels both structures. In this research, linear nonlinear 3-story, 5-story, 9-story S...

Composite Plate Shear Walls−Concrete Filled (C-PSW/CF) are an innovative seismic force resisting system recently adapted for building applications. The walls consist of parallel steel faceplates connected with tie bars and filled concrete. This paper summarizes the results a recent FEMA P695 study completed to verify design parameters uncoupled C-PSW/CFs rectangular flange plate boundary elemen...

Abstract Infill Masonry Walls (IMWs) are used in the perimeter of a building to separate inner and outer space. IMWs may affect lateral behavior buildings, while they different from those partition walls that two spaces. This study focused on seismic vulnerability assessment Steel Moment-Resisting Frames (SMRFs) assuming placement incorporating nonlinear Soil-Structure Interaction (SSI). The ai...