| 1. | The year 1976 saw a disastrous earthquake in tangshan
1976年发生了唐山大地震。 |
| 2. | The most important event in san francisco ' s history was the disastrous earthquake and fire of 1906
旧金山历史上最重要的事件是发生在1906年的损失惨重的地震和火灾。 |
| 3. | The disastrous earthquake that occurred west of northern sumatra over the indian ocean on 26 december 2004 was located on the latter seismic belt
二零零四年十二月二十六日发生在苏门答腊北部以西的印度洋的大地震，其震中正位于上述的第二个地震带。 |
| 4. | The model added the three kinds of edd - bracing system on the 1st , the 2nd and the top weak floor , experiences simulative minute earthquake and disastrous earthquake
试验分别在五层钢框架模型的第一、三和五层薄弱层设置三种耗能阻尼器支撑，进行了多遇地震和罕遇地震的抗震试验。 |
| 5. | The spatial distribution characteristic of disastrous earthquakes in the world from 1996 to 2003 and its relation with seismicity as well as the relation of magnitudes with the original times are discussed
摘要讨论了1996 ~ 2003年8年期间全世界灾害地震的空间分布特征和地震灾情与全球地震活动性、地震震级和地震发震时刻的关系。 |
| 6. | According to the shear - type floor model of frame structure , a basic control equation is constructed to analyze the nonlinear seismic responses of structure equipped with edd - bracing system . subsequently the dynamical finite element analysis are carried on to obtain the seismic response of a twelve - floor r . c frame with the three edd - bracing system under minute earthquake and disastrous earthquake , and the conclusions provide useful references for practical earthquake - resistant design
基于框架结构剪切型层模型，建立了耗能阻尼器对建筑结构非线性地震反应的基本控制方程，由此进行了某十二层钢筋混凝土框架结构设置三种耗能阻尼器在多遇和罕遇地震下的动力有限元分析，为进行实际结构设置耗能阻尼器的抗震设计提供了有益的参考。 |
| 7. | Special - shaped column frame with ved , frd and f - ved are analyzed under minute earthquake and disastrous earthquake , which are compared to that of r . c . special - shaped column frame . the results indicates that the new system with ved , frd and f - ved can effectively reduced the seismic responses than special - shaped column frame ; and that it is more obvious for r . c
最后本文对设置ved 、 frd和f - ved的异型柱框架结构在水平地震作用下的反应进行了时程分析，通过与纯异型柱框架结构在同一地震作用下的时程曲线进行比较，得出以下结论： 1 )采用设置ved 、 frd和f - ved的异型柱框架消能减震结构体系可以有效减小地震反应； 2 )设置f - ved的异型柱框架结构的减震效果比设置ved或frd更明显。 |
| 8. | The results of test and theoretical calculation indicate that the friction device does not slide under minute earthquake , thus the control effort of f - ved corresponds with ved , and the action of frd is the same as pure brace . when disastrous earthquake occurs , the viscoelastic material reaches its shear limits and the friction device begins to slide , so the control effort of f - ved is the best
试验结果和理论计算结果表明，在多遇地震下摩擦机构不起滑，粘弹性-摩擦阻尼器的减振效果和纯粘弹性阻尼器相当，而摩擦阻尼器的作用相当于纯支撑；在罕遇地震下粘弹性材料达到剪切极限，摩擦机构起滑，故粘弹性-摩擦阻尼器的减振效果最好。 |
