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Energy demands for seismic design against low-cycle fatigue

机译：抗低周疲劳设计的能源需求

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摘要

A seismic design procedure that does not take into account the maximum and cumulative plastic deformation demands that a structure is likely to undergo during severe ground motion could lead to unsatisfactory performance. In spite of this, current design procedures do not take into account explicitly the effect of low-cycle fatigue. Based on the high correlation that exists between the strength reduction factor and the energy demand in earthquake-resistant structures, simple procedures can be formulated to estimate the cumulative plastic deformation demands for design purposes. Several issues should be addressed during the use of plastic energy within a practical performance-based seismic design methodology.
机译：不考虑结构在剧烈地面运动中可能经历的最大和累积塑性变形要求的抗震设计程序可能会导致性能不理想。尽管如此，当前的设计程序并未明确考虑低周疲劳的影响。基于强度折减系数与抗震结构中能量需求之间的高度相关性，可以制定简单的程序来估算累积塑性变形需求，以达到设计目的。在基于性能的实用抗震设计方法中，使用塑料能源时应解决几个问题。

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