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序言当设计抗御强地震地面运动作用的结构时,需要表征可能作用于结构的运动形式。这些特征依赖于许多因素,包括局部场地条件和期望的地震活动性型式。虽然已知这些不同因素有关的不确定性的范
Introduction When designing structures that resist the effects of strong earthquakes, it is important to characterize the forms of motion that may act on the structure. These characteristics depend on many factors, including local site conditions and the expected seismicity patterns. Although these different factors are known about the uncertainty of the paradigm