| 1. | Inspiration from garment designing with irregular structure 灵感于不规则结构造型的服装设计 |
| 2. | The calculation result shows that the capacity spectrum method can also be used to evaluate the performance of the irregular structures 计算表明能力谱方法同样可以适用于不规则结构体系的抗震性能评估。 |
| 3. | The ionosphere f region is one of the most important region in the ionosphere . the night - time irregularities in this region can affect nearly all - frequency radio waves propagation through them 电离层f区是电离层最主要的区域,尤其是其中的不规则结构,导致几乎所有波段的电磁波产生幅度和相位的闪烁。 |
| 4. | Ionospheric scintillation can be observated frequently in low - latitude of china , so it is very important to know the physical mechanism of night - time f region plasma instability and irregularities in it 我国的低纬地区属于电离层闪烁频繁发生的区域,研究电离层f区中不规则结构的产生、演化、形态及分布规律、对电波的影响等具有很重要的意义。 |
| 5. | So it ' s necessary and important to research the asymmetric - plan structures " earthqu ake response in order to improve the code for the seismic design . this dissertation is a part of the national science foundation subject " effects of torsion on nonlinear seismic response of structures " ( the code number : 59978055 ) 因此,深入开展平面不规则结构的地震反应规律的研究,为完善结构抗震设计规范中的相关条文提供依据,这项工作将是十分必要和有重要意义的。 |
| 6. | An improved distribution method of the horizontal lateral forces to the planar structures and a new one to the structures with torsional responses are presented . the example of the pushover analysis testifies the validity and feasibility of the studied distribution method , and the potentiality of the use of static pushover analysis method to irregular structures is also proved . the capacity spectrum method of the structural performance evaluation is discussed in this paper 对钢筋混凝土结构静力推覆分析( push ? over )的研究,主要讨论了静力推覆分析中水平侧向力的分布形式,提出了一种平面结构的改进水平侧向力分布形式和楼层平面出现不可忽略扭转反应的空间结构的水平侧向力分布方法,并用推覆分析实例验证了所提出的水平侧向力分布形式的正确性和可行性以及静力推覆分析适用于不规则结构的可能性,同时也验证了结构变形控制抗震设计方法的合理性。 |
| 7. | As to the irregular structure , only the first step of design is really performed according to the chinese code for seismic , and the structures " response under the fortification and rare seismic action need to be reviewed through some three - dimensional nonlinear analysis quantificationally 对于不规则结构,我国目前事实上只能做到一阶段设计,我国现行规范中有关抗扭设计的方法在设防地震和罕遇地震作用下的效果到底如何,有待通过三维非线性地震反应模拟给出一些定量的分析。 |
| 8. | The earthquake responses of the asymmetric - plan structure are researched and the main factors that influencing the structure ' s response are established . the influences of the earthquake type and the earthquake input in two directions are also researched . the effectiveness of regulation for the irregular rc frames in the code for the seismic design ( gb50011 - 2001 ) is discussed using the flexibility - based fiber - models beam - column elements in the 3d nonlinear analysis program 本文结合国家自然科学基金资助项目“结构非线性地震扭转作用和扭转效应的研究” (项目批准号: 59978055 ) ,对平面不规则结构的地震反应规律进行了深入研究,明确了影响平面不规则结构地震反应的主要结构参数,研究了不同地震动类型和双向水平地震输入对结构扭作用和扭转效应的影响;采用基于有限元柔度法的纤维模型梁柱单元,建立钢筋混凝土框架结构三维非弹性地震反应动力分析程序,对依据我国建筑抗震设计规范( gb50011 - 2001 )设计的不规则结构进行地震反应模拟分析,讨论了现行设计方法的有效性。 |
| 9. | 3 . according to the classifying of the earthquake records , the influencing degree of different ground motions to the eccentric buildings is researched . the response of the irregular rc frame under the strong ground motions is analyzed using the fiber models 3 、根据地震动类型的划分标准,考察了各种类型的地面运动对偏心结构非弹性反应的影响程度;采用纤维模型梁柱单元分别模拟了单层和多层不规则结构在不同类型地面运动作用下的强震反应过程,对结构的变形峰值与滞回耗能情况进行了考察。 |
| 10. | A new similarity method in fem is presented for researching of the problems about the nonuniform and irregular region , such as micromachined microwave coplanar waveguide . by using this method , we calculate the characteristic impedances of mems waveguide and analyse the change with its different dimensions . with the use of a recurrence relation , this new method not only use much less computer ' s memory than the conventional fem , but also simplify the post - process 对低阻硅衬底上实现v型槽mems共平面波导进行了详细深入的研究,提出并采用混合相似剖分有限元方法对不规则结构传输线的特性阻抗进行数值分析,在验证了方法的正确性基础上,进行了大量计算,并总结了常用50 、 120等阻抗传输线的结构参数。 |