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首页> 外文期刊>Structural Design of Tall Buildings >INELASTIC EARTHQUAKE CONTROL OF WELD FAILURE PART II: PROBABILITY THEORY
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INELASTIC EARTHQUAKE CONTROL OF WELD FAILURE PART II: PROBABILITY THEORY

机译：焊接失效的弹性地震控制第二部分：概率理论

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Active structural control of inelastic response is proposed on an existing building as a method to reduce the risk of steel building weld failure. Probability theory of analysis using maximum plastic rotation as the random variable is performed to study the number of earthquake records needed in order to accurately predict the probability of failure. Based on the characteristics of the plastic rotation, a new probability density function is developed that consists of both discrete and continuous random variables. Forty-nine earthquake ground motion time histories are used in this study, and numerical simulations show that at least 40 earthquake ground motions are necessary to accurately predict the probability of failure, which is contrary to the design criteria provided by the Uniform Building Code. The probability density function is then used to design the control system, and in the process the use of structural control is shown to be very effective in reducing the risk of weld failure to an acceptable level. Copyright
机译：提出了一种在现有建筑物上进行主动非弹性响应结构控制的方法，以降低钢结构建筑物焊接失败的风险。进行了以最大塑性旋转为随机变量的分析概率论，以研究所需的地震记录数，以便准确预测失效概率。根据塑性旋转的特征，开发了一个新的由离散和连续随机变量组成的概率密度函数。在这项研究中使用了49个地震地震动的时间历史记录，数值模拟表明，至少有40个地震地震动是准确预测破坏概率的必要条件，这与《统一建筑规范》所提供的设计标准相悖。然后，将概率密度函数用于设计控制系统，并且在此过程中，结构控制的使用被证明在将焊接失败的风险降低到可接受的水平方面非常有效。版权

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