In this study, the seismic performances of a 14-storey office building in Nanjing, China, due to its plan and vertical irregularities structural system, were evaluated using response spectrum method, elastic time history analysis elastic–plastic analysis. combination these three methods, storey drifts states typical members under levels earthquakes determined verify robustness design program. T...

the main objective of this study is to swing krull intersection theorem in primary decomposition of rings and modules to the primary decomposition of soft rings and soft modules. to fulfill this aim several notions like soft prime ideals, soft maximal ideals, soft primary ideals, and soft radical ideals are introduced for a soft ring over a given unitary commutative ring. consequently, the p...

This paper is an experimental study on the behavior of vertical shear link in the single and double configurations. There have been three specimens selected for examining the effects of different details .The first specimen was an I section with no stiffener, while the second specimen composed of I section with stiffeners designed according to AISC 2005. Third specimens were composed of two I s...

Abstract At present, there is a problem of too much prestress loss in the construction multi-layer logistics warehouses China. To meet quality requirements project, this paper puts forward research on technology pretension prestressed reinforced concrete structure warehouse. The process can be effectively controlled by incorporating pre-tensioning into process, placing tendons, and tensioning o...

The paper investigates the dynamic behavior of structural systems obtained by connecting a moment-resisting frame structure with vertical rigid truss pinned at base, known in literature as “strongback,” and equipped added fluid-viscous dampers. strongback, designed order to remain elastic field under strong seismic ground motion, acts mast imposing linear lateral deformed shape. By regularizing...

Due to the fact that the buckling-restrained brace core yields subject to both tension and compression, it can adsorb energy and exhibit high ductility rendering it proper for tolerating earthquake loads. One of the important objectives of seismic standards is safeguarding the appropriate ductility for the structures because the structures, in case of being ductile, can dissipate a considerable...

This paper considers the problem of shear building damage estimation subject to earthquake ground excitation using the Kalman filtering approach. The structural damage is assumed to take the form of reduced elemental stiffness. Two damage estimation algorithms are proposed: one is the multiple model approach via the optimal two-stage Kalman estimator (OTSKE), and the other is the robust two-sta...