نتایج جستجو برای: ultimate limit state
تعداد نتایج: 1051635 فیلتر نتایج به سال:
In this work, we generalize the entanglement of three-qbit Bosonic systems beyond the single-mode approximation when one of the observers is accelerated. For this purpose, we review the effects of acceleration on field modes and quantum states. The single-mode approximation and beyond the single-mode approximation methods are introduced. After this brief introduction, the main problem of this p...
Breakwaters are among the most frequently-used coastal protective structures and their stability is vital to avoid turbulence at the ports. The main purpose of the present research is to use the theory of fuzzy random variables and the second-order reliability method (SORM) to study the reliability of a rubble-mound breakwater against the failure due to the armor layer instability. The limit-st...
The study presents an optimal design of simply supported rectangular reinforced concrete beams based on the ultimate limit state philosophy BS8110 and using genetic algorithm as optimization tool. An model was formulated. consists objective function which focuses minimizing steel ratio constraint equations are focused checking that all requirements for satisfied. Results obtained showed a diffe...
Ultimate limit state (ULS) assessment examines the maximum load-carrying capacity of structures considering inelastic buckling failure. Contrary to traditional allowable stress principle which is mainly based on experiences, ULS focuses explicitly evaluating structural safety margin and thus enables a consistent level safety/risk between conventional novel designs. Modern are usually designed a...
this paper deals with three-dimensional evaluation of the slopes on the basis of limit analysis. an upper-bound technique of limit analysis is used in this paper to determine either the bearing capacity of a shallow foundation near a slope or the safety factor of the slope. the theorems of limit analysis (upper and lower bound) provide a powerful tool for solving problems in which limit loads n...
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