Thirdly . based on the analysis of the engineering geology , hydrogeology and the dynamic peculiarity of the site soil , and the analysis and caculation of the seismic reaction , it gains the anti - seismic design coefficient and divided the city area into three seperate defence zones . marked a , b , c . finally , it makes a researsh of the seismic effect of the site of the city and makes the suggestions of the land utilizing . dividing the city land into 4 sub - zones 第三在分析研究莱芜工程地质、水文地质及场地土动力特征的基础上对莱芜市场地地震反应进行了分析计算，得出莱芜市抗震设计地震参数，并分为a 、 b 、 c三个设防区。最后对场地地震破坏效应进行了研究，对莱芜市土地利用进行了分区，并提出了合理利用土地建议。
Based on the comprehensive statistical analysis of inelastic displacement ratios , the regression equations of - r - t about the strength reduction coefficient and inelastic displacement ratios are obtained . the effects of soil condition , earthquake magnitude , epicenter distance , damp ratios and hysteretic characteristics are considered in detail 通过对理想双线性体系的均值弹塑性位移比与强度折减系数进行了统计分析与数值拟合,建立了两大类场地土(硬土、软土)下的- r - t回归公式。
Based above , a two - grade fuzzy comprehensive evaluation model is presented on the ground of the current seismic design code for building . it is that taking the membership of equivalent shear velocity as weight of the model not empirical weight in traditional one - grade model . it has been proved in site classification reasonable 参照我国现行建筑抗震设计规范，改变过去以经验系数为权重的一级模糊综合评判模型，以等效剪切波速对各场地土的隶属度为权重，建立了场地二级模糊综合评判模型，对场地进行划分。
This paper introduces the development and present situation of vibration absorb technology in the world ; generally analysis the rubber - bearing ( rb ) and lrb " s operative mechanism , function and the calculation of parameter ; advance the concept of standardization to lrb ; on the basis of generally analyzing the connected factor such as the site category , the diameter of lead bar , the height of bearing , the designing carrying capacity , the span of bridge , the inherent period and the displacement of rb , determine the parameter , the absorbing vibration target , the method and the process of standardization to lrb ; then according to the two - step rule of resisting and defending earthquake , and combining with the response spectrum theory in the seismic vibration of bridge , make a lot of calculation and analysis of vibration absorb design to the real bridge collected and combined by finite element program ; at last , gives the result of standardization through diagram and explains to its usage 本论文介绍了国内外减震技术的发展和现状；综合分析了普通板式橡胶支座和铅销橡胶支座的工作机理、性能及参数的计算；提出了铅销橡胶支座标准化的概念；在综合分析场地土、铅销直径、支座高度、设计承载力、桥梁跨径、固有周期以及支座变位等影响因素的基础上，确定了铅销橡胶支座标准化的参数、减震目标、方法和过程；并根据抗震设防两阶段原则，结合桥梁地震振动理论的反应谱法，运用有限元程序对收集和组合的实桥进行了大量减震设计的计算和分析；最后以图表的形式给出了铅销橡胶支座标准化的结果，并说明了其使用方法。
Based on the work done before , in this paper , the influential factors on the floatation response of pipeline buried in liquefied soil were studied , including the spring stiff of liquefied soil , the initial deformation , the length of liquefied area , the axial force acting on the pipeline , the material of pipeline , and the radius of pipeline 摘要本文在以前研究的基础上，对场地土液化引起的地下管道上浮的影响因素进行了较为全面的研究，包括液化土的弹簧刚度、管道的初始变形、液化区长度、管道的初始轴力、管道材料、管道半径等的影响。
By statistically analyzing the test data , a regression formula has been attained . second , the influences of seismic wave , foundation of a bridge and the mechanical properties of lead - rubber bearing on the response of an isolated bridge with the lead - rubber bearing was investigated . several conclusions for properly applying lead - rubber bearing in isolated bridges have been made 其次，利用单墩模型，系统地研究了地震波特性、铅芯橡胶支座参数、桥梁下部结构特性及场地土特性等对隔震桥梁动力响应的影响，提出了在桥梁隔震中合理使用铅芯橡胶支座的一些建议。
Despite the different keystones which structural engineering and geotechnical engineering emphasize respectively in aseismatic interaction analysis of upper - lower parts under horizontal earthquake , that is inertial feedback interactions of the structure subsystem to the former or kinematic interactions of the pile - soil foundation subsystem to the latter , but the dual effects of soil fields must n ' t be ignored 在遭受水平地震作用时的上、下部相互作用的抗震设计中，结构工程与岩土工程对这一领域各自有所偏重，前者较为关注其上部结构的惯性反馈相互作用，而后者则更加关注的是其桩土基础子结构的刚体相互作用，但场地土在抗震工程中的双重作用均是不可忽视的。
