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在钢-混凝土组合抗弯框架的抗震设计中,梁柱组合节点转动响应的随机性会影响能量耗散区域的位置。事实上,在节点的强度作用全部发挥的情况下,地震能量的耗散发生在梁端,相反地,在节点的强度作用部分发挥的情况下,则耗散也会发生在梁柱连接节点的连接部件上。在结构框架中,节点构件的材料随机性变化扮演了重要的角色,因为它影响了节点的弯曲强度,从而也影响了其塑性转角。因此,框架的研究项目旨在评估包括材料随机变化在内的钢-混凝土组合框架的地震可靠性,并着重分析了材料随机变化对梁柱节点转动响应的影响。特别是通过蒙特卡罗模拟法从整体来对梁柱节点转动性能描述参数的统计分布法则进行评估。这种分布法则提出了关于钢-混凝土组合抗弯框架的一个完整的概率地震需求分析的重要输入数据,而其节点建模所使用的转动弹簧的随机值参数也满足之前推断出的分布法则。
In the seismic design of steel-concrete composite flexural frames, the randomness of the rotational response of the beam-column combination node affects the location of the energy dissipation region. In fact, the dissipation of seismic energy takes place at the beam ends where the strength of the joints is fully exerted. Conversely, if the strength of the joints is exerted, the dissipation also occurs at the joints Connect the parts. In the framework of the structure, the random variation of the material of the node component plays an important role because it affects the flexural strength of the node and thus its plastic corner. Therefore, the research project of the framework aims to evaluate the seismic reliability of the steel-concrete composite frame, including the random variation of material, and analyzes the effect of material random variation on the rotation response of the beam-column joint. In particular, the Monte Carlo simulation method is used to evaluate the statistical distribution law of the parameters of beam-column joint rotation performance. This distribution law presents important input data for a complete probabilistic seismic demand analysis of a steel-concrete composite flexural frame, and the random value parameter of the rotating spring used in the node modeling also satisfies the previously deduced distribution law.