体系结构

Membrane structures can be divided to: Structure forms: including hanging system canting pull system tensioned membrane structure etc.

按照结构形式索膜结构可分为悬挂体系斜拉体系张弦拉屋架平面索桁架单层索网空间索网格整体张拉结构和张拉膜结构。

The results showed when the structure on raft foundation was close to the tunnel, the total displacement at the top of superstructure took place irreclaimable excursions to another direction, the foundation swung, too. But that of the structure on pile-raft foundation was not.

计算结果表明，当隧道紧靠建筑物时，筏基－结构相互作用体系的基础和结构顶层水平位移均发生了向无隧道一侧的偏移，而桩筏基础－结构相互作用体系的基础和结构顶层水平位移均未发生偏移。

Masonry structure is mainly applied in the multistory building in China nowadaysand in the future.

摘要砌体结构是目前我国多层住宅中应用最广泛的结构体系，在今后相当长的时期内仍将是多层住宅结构体系中的主要结构类型。

Used in a same engineering example,the structure behavior and main features of multistory light gauge steel structure s are discussed in this paper.

介绍了轻钢龙骨体系的主要特点，通过对某工程分别采用轻钢龙骨结构和混凝土结构等其他结构方案的对比分析，表明了该结构体系在我国大多数地区建造是切实可行的，符合现行相关规范的要求

Aiming at the key issue of PVA fiber industry, this paper focuses on the realization of PVA melt spinning through intermolecular complexation and plasticization, and studies its mechanism. According to the supermolecular

研究了改性体系的氢键复合结构，改性体系中水的蒸发行为，改性剂对PVA热性能、结晶结构及非等温结晶性能的影响，PVA熔纺初生纤维的结构与性能及纤维拉伸过程中的结构形成，为在加工过程中控

The gel dynamics experiments showed that the gel formation law was similar with the other polymer systems, which wasrelated with dense surface under the soft coagulating condition and the thickening gel; the square of gel thickness was linear with coagulation time. The qualitative analysis of the surface puckers of fibers spun from wet spinning and dry-jet wet spinning was made. The positions where the die swell appeared were not the same and the die swell appeared at the air gap where the fiber would markedly been elongated and vary little in the coagulant, thus the surface of fiber spun from dry-jet wet spinning was more smooth. The radial component concentration gradient was responsible for the radial structure of PAN fiber spun from dry-jet wet spinning. The thicker surface with microvoid structure of

对湿纺和干湿纺进行比较表层沟槽的产生进行定性分析，原因在于孔口胀大区域出现在不同位置，在干湿纺中，溶液的孔口胀大出现在空气层，并在该区完成大部分形变，进入凝固浴后形变很小，纤维表面较为光滑；干湿纺PAN纤维径向结构存在差异，这与丝条内组分由于双扩散进行导致径向上存在浓度差异直接相关；凝固强度较大的体系，可以获得厚度较大且孔结构尺寸较小的皮层；含较少缠结的PAN原液在纤维成形后截面很圆整，但原液缠结浓度增大时成形后圆整度下降；PAN纤维成形是一个远离平衡的过程，凝固作用缓和的体系可以使成形过程靠近平衡，可获得更大尺寸的孔洞结构；原液中少量的非溶剂添加剂显著改变纤维径向结构，可获得孔洞尺寸更小和更为均一的径向结构，这与径向浓度差异的减小、分相时间的集中相关；PAN原液的成形纤维表面依赖于凝固强度；由AFM对相近凝固条件下成形的PAN膜进下

Based on the results of experimentation and field test as well as the properties of time-dependent structural system, a model of the continuous beam with spring supports for simulating the high-rise concrete building during construction was proposed.

根据室内试验和现场实测的结果，结合施工时变结构的受力特点，针对梁板柱体系混凝土结构，本文建立了施工时变结构体系分析的弹性支撑连续梁模型CBSS(Continuous Beam With Spring Supports)，提出了基于弹性支撑连续梁模型CBSS的高层建筑混凝土结构施工过程受力性能的仿真分析方法。

Based on the results of the large-size shaking table test of a subway station structure built in liquable site,considering the influence of the soil-structure nonlinear dynamic interaction by 2D finite element methods,the seismic responses of the soil- subway station structure system under different test conditions are analyzed by using ABAQUS software.

根据可液化土层上土-地铁车站结构动力相互作用大型振动台模型试验结果，以软件ABAQUS为平台，将地基土-地铁车站结构体系视为平面应变问题，采用记忆型嵌套面黏塑性动力本构模型模拟土体的动力特性，采用混凝土动塑性损伤模型模拟车站结构混凝土的动力特性，建立了土-地铁车站结构非线性动力相互作用的有限元分析模型，对各种试验工况下地基土-地铁车站结构体系的地震反应进行了数值模拟，并与试验结果进行了对比，结果表明：数值模拟与振动台模型试验结果基本一致，体现出了相似的规律性，相互印证了计算分析的力学建模和振动台试验结果的正确性。

The results show that although both Ni substitution and Mg vacancies are effective in desorbing hydrogen at lower temperatures, the substitution of Ni at the Mg site is energetically more favorable than the formation of Mg vacancies. The Ni atoms of NiF2 can replace some Mg atoms of MgH2 systems, the reaction of NiF2+3MgH2=MgF2+Mg2NiH4 during mill process is accelerated, thus, MgH2 with the higher stability can be changed into Mg2NiH4. Because of a ternary hydride Mg2NiH4 with lower stability forming, the dehydrogenating properties on Ni doped MgH2 systems are improved.

结果表明：Ni替代Mg和创造Mg空位对MgH2体系解氢而言，均发挥有益作用，而形成Mg空位所需能量(6.51 eV)高于Ni替代Mg所需能量(2.12 eV)，表明低温下Ni替代Mg对MgH2体系解氢而言更有利，至此NiF2中的Ni替代MgH2中的Mg，有利于加速化学反应NiF2+3MgH2=MgF2+Mg2NiH4向右进行，使结构稳定的MgH2发生转变，生成结构不稳定的Mg2NiH4，这样体系解氢过程不是通过MgH2，而是转变为通过Mg2NiH4进行，因此，Ni掺杂提高了MgH2体系的解氢性能。

Finally, through the instance of engineering, we can see that the steel dosage in steel honeycomb plank is smaller and the self-weight of the whole structure is lighter comparing with pyramided grid structure, and the steel dosage in portal strut with honeycomb laminated beam-column system is still smaller and the self-weight is still smaller comparing with steel I-beam,they will have a wide applied foreground.

最后，通过工程实例分析表明，在大跨度屋盖结构中，金属蜂窝板-杆空间结构体系比常规的四角锥网架结构具有用钢量低，结构整体自重轻等优点；在轻钢结构厂房中，采用金属蜂窝纯板片箱梁体系比一般H型钢结构用钢量更低，自重更轻，具有广泛的应用前景。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。