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On the behavior factor of masonry towers

机译:关于砌体塔的行为因素

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A recently proposed numerical algorithm, for the pushover analysis of masonry towers, is here adopted for the evaluation of the behavior factor, entering the simplified seismic analysis of masonry towers, suggested in the Italian Directive for the assessment and reduction of the seismic risk of the cultural heritage. In order to consider, within a probabilistic context, the uncertainty of the mechanical and structural parameters involved, Monte Carlo method is adopted. The study indicated that the reduction factor of the seismic forces depends mainly on the acting stress over compressive resistance ratio. It is shown that the actual value proposed in the Italian Directive may be unsafe for high values of this ratio. Finally, an empirical formula based on the different Monte Carlo simulations is calibrated for the prediction of the behavior factor.
机译:这里采用了最近提出的数值算法,用于砌体塔的推覆分析,以评估行为因素,进入简化的砌体塔的地震分析,这在意大利指令中建议用于评估和降低建筑物的地震风险。文化遗产。为了在概率范围内考虑所涉及的机械和结构参数的不确定性,采用了蒙特卡洛方法。研究表明,地震作用力的减小因子主要取决于作用应力与抗压强度之比。结果表明,对于该比例的高值,意大利指令中建议的实际值可能不安全。最后,基于不同的蒙特卡洛模拟的经验公式被校准以预测行为因素。

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