桩-土-杆系结构的动力相互作用

本文通过对在Penzien模型基础上改进后的桩-土-杆系结构动力相互作用模型的研究,编制开发了简便、实用的桩-土-杆系结构动力相互作用分析通用程序DIPSFSA。结合工程实例计算结果表明,考虑共同工作与常规法基础固定某些情况下会有较大差别。本论文得出的结论对现行建筑结构抗震规范的修订有一定的参考价值。程序DIPSFSA可为设计人员对整个结构提供正确的反应与内力分布,对在III、IV类场地柔性地基上建筑物的抗震设计有一定的实用价值。

Dynamic Interaction of Pile-Soil-Frame Structure

Through the research on the model of improved dynamic interaction of the pile soil frame structure based on Penzien model, the dynamic interaction of pile soil frame structure analysis program (DIPSFSA), has been developed, which is concise, convenient and practical. Calculation results combined with a lot of actual engineering practice indicate that in some cases there are distinct differences between taking the dynamic interaction of pile soil frame structure into consideration and leaving it out of consideration, as usually done in coventional seismic design regarding the structure with piles to be rested on rigid foundation. The conclusions drawn from the paper may be useful in revising the present Seismic Code for Buildings. The program DIPSFSA can give correct response and distribution of internal forces to the whole structure for the designers. So it can be served as a reference for seismic design of buildings situated on the site III、IV and flexible foundation.