本义设汁实现了结构-地基动力相互作用体系的振动台试验，通过试验研究了动力相互作用体系的地震动反应的主要规律。山于动力相互作用的影响，软土地基中相互作用体系的频率远小于刚性地丛上不考虑结构一地基相互作用的构频率，而阻尼比则远人于结构材料阻尼比。软上地基对地震动起滤波和隔震作用。由于上部结构的振动反馈，基底地震动与自由场地震动不相同。上部结构柱顶加速度反应主要由基础转动引起的摆动分量组成，平动分量次之。而弹性变形分量很小。桩身应变幅值呈桩顶人、桩尖小的倒三角形分布。桩上接触压力幅值旱桩顶小、桩尖大的三角形分布。试验表明，结构-地基动力相互作用对体系地震反应的影响是很显著的。本试验为验证理沦与计算分析的研究成果、改进或提出合理的汁算模型和分析方法，提供了丰富的试验数据，为进一步研究奠定了基础。

非线性反应谱是基于性能的抗震设计理论中亟待解决的基础性课题之一。本文将四种场地类别上的641条地震记录，按我国现行抗震规范设计分组的要求分为12组，对大量具有不同屈服强度系数的单自由度体系作了弹塑性时程分析。研究了结构强度水平、周期、场地类别以及设计分组等因素对延性需求的影响。结果表明，在给定屈服强度水平下结构的延性需求强烈地依赖于场地条件、设计分组等因素。对于短周期结构，延性需求随场地土变软而增大，同类场地随设计分组特征周期增大而增大。通过非线性回归分析，建立了与场地类别、设计分组相对应的延性需求谱μ-ξy-T的计算公式。在此公式的基础上，结合现阶段抗震设计规范构建了弹塑性位移反应谱，可用于结构弹塑性位移需求的简化计算，同时讨论了弹塑性位移反应谱的基本特点。

In this paper, the dynamic response of a very complex structure which has U shaped flexors and specially shaped slant culumns is described. Shaking table tests of a scale model of the building were taxied out to verify the safety of the structure and to, confirm the resulis of a finite element analvsis of the building. The elastic finhe element analysis was done with the help of Super SAP 93, a well-known structural analysis program. From the shaking table test and the finire element analysis, the dynamic eharaeleristics of the building and its maximum responses were evaluated In the ehlastic reeion the analytical results were in good agreement wilh the test results At the end of this paper, some suggestions are given for engineering design of this type of structures

A new seismic energy dissipation shear wall structure is proposed in Ibis paper. Tile new shear wall is one with purposely built-in vertical slits within the wall panel, and rubber belts as seismic energy dissipation devices are installed in the vertical slits. In order to verify this concept, shaking table tests of a 1O-storey shear wall modcl with rubber belts filled in the vertical sifts were carried out, and comparison of seisndc behaviour was made between the new shear wa]l system and a shear wall with reinforced concrete connecting beams as energy dissipation, Furthermore, the seismic behaviour of this new shear wall is analysed by a finite element time history analysis method The test and analysis show thai the new shear wall system has a very good ability to dissipate seismic energy and is easy to use in engineering practice.

A three-dimensional finite element analysis of the soil-pile-structure interation system is presented in this paper. The analysis is based on data from shaking table model tests made in the StaTE Key Laboratory for Disaster Re-duction in Civil Engineering. Tongji Universtiyt. China. The general finite element program ANSYS is used in the anal-ysis. The surface-to-surface contact element is taken into consideration for the nonlinearity state of the soil-pile interface. and an equivalent linear model is used for soil behavior. Acomparison of the results of the finite element analysis with the data from the shaking table tests is used to validate the computational model. Furthermore, the reli-analysis with the data from the shaking table tests is used to validate the computational model. Furthermore, the reli-ability of the test result is also verified by the simulation analysis. It shows that speration, closing, and sliding exist between the pile foundation and the soil. The distribution of the amplitude of strains in the pile, the amplitude of con-tact pressure, and the ampliude of sliding at the soil-pile interface are also discussed in detail in this paper.