地震动强度指标与框架结构响应的相关性研究

发布时间：2018-01-27 09:56

本文关键词： 地震动强度指标框架结构时程分析地震响应相关性　出处：《振动与冲击》2017年03期 　论文类型：期刊论文

【摘要】：随着当前结构性能设计及耗能减震技术的普遍应用,根据合理的地震动强度指标来选择和调整实测地震动记录进行结构地震动响应分析,对于保证结构抗震设计的可靠性具有重要的意义。该研究将13种常用的地震动强度指标按照加速度型指标、速度型指标和位移型指标分为3类,对强震作用下13种常用的地震动强度指标与不同周期框架结构响应参数的相关性开展了研究。研究结果表明:3类地震动强度指标中,加速度型指标与短周期框架结构响应参数的相关性最好;速度型指标与中周期和中长周期框架结构响应参数的相关性最好;位移型指标与中长周期框架结构响应参数的相关性相对较好;同一结构在线性反应阶段与非线性反应阶段的响应参数与地震动强度指标的相关性是变化的。
[Abstract]:With the widespread application of structural performance design and energy dissipation damping technology, the structural ground motion response analysis is carried out by selecting and adjusting the measured ground motion records according to the reasonable ground motion intensity index. It is of great significance to ensure the reliability of seismic design of structures. In this study, 13 commonly used indices of seismic strength are classified into three categories according to acceleration index, speed index and displacement type index. The correlation between 13 kinds of commonly used earthquake intensity indexes and the response parameters of frame structures with different periods under strong earthquake is studied. The results show that there are three kinds of earthquake intensity indexes. The correlation between acceleration index and structural response parameters of short period frame is the best. The velocity index has the best correlation with the structural response parameters of medium-period and medium-long period frame. The correlation between displacement index and structural response parameters of medium-long period frame is relatively good. The correlation between the response parameters of the same structure in the linear and nonlinear response stages and the intensity index of the ground motion is variable.
【作者单位】：大连理工大学建设工程学部;
【基金】：地震行业科研专项经费项目(201508005)
【分类号】：P315.9;TU311.3
【正文快照】： 近年来随着重大地震灾害的频繁发生,弹塑性时程分析作为预测建筑结构地震响应和抗震性能评估的有效手段越来越受到重视。结构时程分析时,面临的首要问题是地震动记录选择和调整。目前,地震动记录的峰值、频谱特性和持时是普遍认可的地震动记录选择和调整的控制指标。其中,地震

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