Abstract Consideration of soil's response in dynamic analysis is equally important as modeling superstructure to capture all nonlinear behavior in evaluating its seismic performance. This becomes more important if an adjacent building exists nearby, which can alter dynamic response of both structures. Also, soft soil makes effect of interaction between superstructure and soil more pronounced due to low stiffness which can be improved by implementation of some stiffer elements inside the soil. In this study, effects of soil-structure and structure-soil-structure interaction are investigated with consideration of improved soil consideration. Fixed base, soil-structure and adjacent frames with soil and improved soil conditions are modeled, and nonlinear time history analyses are performed. Results are given in terms of maximum story drift and residual drift demand. In addition, fragility curves are obtained performing incremental dynamic analysis and adjusted based on results of seismic hazard analysis on considered site. Collapse probability of frames in fifty years is also shown. The results indicate that stone column improvement reduces demand on superstructure and collapse probability of frames.

中文翻译：

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考虑改良土壤条件的相邻建筑物抗震性能评价

摘要 在动力分析中考虑土体响应与模拟上部结构同等重要，以捕捉所有非线性行为以评估其抗震性能。如果附近存在相邻建筑物，这会变得更加重要，这会改变两个结构的动态响应。此外，由于低刚度，软土使上部结构和土壤之间的相互作用效果更加显着，这可以通过在土壤内部实施一些更硬的元素来改善。在这项研究中，考虑到改良土壤，研究了土壤-结构和结构-土壤-结构相互作用的影响。对固定基础、土壤结构和带有土壤和改良土壤条件的相邻框架进行建模，并进行非线性时程分析。结果根据最大故事漂移和剩余漂移需求给出。此外，通过增量动力分析获得脆性曲线，并根据考虑地点的地震危险性分析结果进行调整。还显示了五十年内帧的折叠概率。结果表明，石柱的改进降低了对上部结构的需求和框架的倒塌概率。