| 1. | Effect of soft strata on peak acceleration of ground motion
软弱夹层对地表加速度峰值的影响 |
| 2. | Outside the improved area , the peak acceleration increases and the peak shear stress decreases with the increment of replacement ratio
在复合地基加固范围之外，随着置换率的增加，复合地基中加速度峰值逐渐增大而剪应力逐渐减小。 |
| 3. | The results show that minor and major earthquakes calculated from moderate earthquake have not consisted probability and the ratios of bedrock peak accelerations under different exceeding probabilities are closely correlative with earthquake environments
结果表明，由中震地震动参数换算得到的小震、大震地震动参数不具备一致概率水平，不同概率水准下基岩峰值加速度的比值与地震环境密切相关。 |
| 4. | The peak acceleration and the peak shear stress in superstructures increase with the increment of replacement ratio . parameters of softening model are obtained through seismic settlement tests of composite cemented clay samples and relative curves are plotted considering different replacement ratio
通过复合试样的震陷试验，采用软化模型的概念，得到了该模型有限元计算的有关参数，将这些参数和置换率的关系绘制成曲线并且给出了拟合公式。 |
| 5. | According to the need of design code for anti - seismic of engineering constructure , the bedrock peak acceleration rate and response spectrum of exceeding probability of 63 % , 10 % and 2 % are given respectively and seismic motion parameters are also calculated , which will provide the evidences for anti - seismic design of this electric power equipment station
按工程建筑物抗震设计规范要求，分别给出了50年63 % 、 10 %和2 %超越概率水平的基岩峰值加速度及反应谱，计算出地震动参数，为该电力设备站建设提供了抗震设计依据。 |
| 6. | Compared with free field , the peak acceleration decreases and the peak shear stress increases under the overload transmitted from superstructures either inside or outside improved area . at the same replacement ratio , the peak acceleration and the peak shear stress both increase with the increment of layers in superstructures
在上部建筑结构中，复合地基置换率相同时，随着层数增加，结构中的加速度和剪应力峰值都随之增大;而置换率增大时，结构中的加速度和剪应力峰值也增大。 |
| 7. | Analysis of prototype with frame - bent in the longitudinal direction and frame - shear wall in the transverse direction under the earthquake with peak acceleration 50gal . is conducted . . the following subjects are concerned : the dynamic properties , the torsional effect on the structure , split lever influence on the distribution of the shear forces in the columns , the mechanic of the frame corporation with the bent
在试验研究的基础上，对横向框排架、纵向框架?剪力墙结构的整体厂房进行平扭耦联的地震反应分析，研究了该类结构的动力特性、扭转对整体结构受力的影响、层间变形及扭转效应、框架与排架的内力分配、错层对该层各柱剪力分配的影响、相应的简化计算方法等相关内容供设计时参照。 |
| 8. | Abstract : based on the results obtained from seismic safety evaluation of 128 engineerng sites in china , statistics and analysis of relevant intensities with differient probability levels and peak acceleration are made to provide parameters of probability levels of earthquake resistance in the seismic design code
文摘:以全国范围内128项工程场地地震安全性评价结果为基础，对不同概率水平相应的地震烈度和加速度峰值进行统计分析，为合理确定抗震设计规范中设防地震的概率水平提供了依据。 |
| 9. | The results demonstrated that the weft tension and its amplitude can be effectively reduced and positively controlled to meet the requirements of weaving provided that suitable weft storage feed unit , weft feeding position and tension device are selected , modified trapezoid acceleration motion with smaller peak acceleration as the law of weft insertion motion is adopted , and the route of weft yarn motion is optimized
结果表明：通过选用合适的纬纱储纬器、张力器和纬纱供纬位置，选用加速度峰值较小的改进型梯形加速度引纬运动规律，优化纬纱运动路径，可有效地降低纬纱的张力值和张力变化的幅度，达到对纬纱张力进行积极控制的目的，满足织造工艺的要求。 |
| 10. | Inside the area improved by cement mixed piles , the peak acceleration decreases and the peak shear stress increases with the increment of replacement ratio . in a point closer to the ground , there are higher peak acceleration and lower peak shear stress at the same replacement ratio
通过研究发现:在复合地基加固范围之内，随着置换率的增加，复合地基的加速度峰值逐渐减小，剪应力峰值逐渐增加;置换率相同时，离地表越近，复合地基的加速度峰值越大而剪应力峰值越小。 |
