延性

The effects of the confinement index, the section steel index and the slenderness ratio on the mechanical properties of the composite column are discussed.

通过13根组合柱的轴心受压试验，研究了钢骨钢管高强混凝土组合柱的工作机理、延性和极限承载力，讨论了影响这种组合柱性能的主要因素，包括套箍指标、配骨指标和长细比等。

Then through series experiment of coupling beams only add diagonal bars on the basis of traditional reinforcement with Zhanlin, we can conclude this plan for steel bar can satisfied the ductility demand of short-span coupling beams in tube body structure of Chongqing area. Through the computer simulation we can know: Procedures outputs coupling beams'ductility demand mainly in 1.5 to2.0 (maximum value 2.2), comparing the simulation of 8 or 9 degree , we can see the response of the whole structure and yielding degree are much small.

计算机分析程序输出的连梁的转角延性大多在1.5到2.0之间(最大值2.2)，对比以往本学科点对8度和9度等高烈度区的同类型结构的地震作用模拟分析可以看出，6度区大震作用下不管是结构的整体反应还是各杆件的屈服情况都比高9度和8度区小很多。

In this paper,concrete filled steel tube short column with dumbbellshaped cross section is studied by finite element method,further analysis on the influence of concrete grade and steel ratio on confining force,and stress distribution and other properties of the core concrete in web cavity of the column under load is carried out.

国内外很早就对钢管混凝土的基本理论进行了大量的研究，我国对钢管混凝土结构的研究也极为重视[1～5]。自20世纪90年代以来，我国开始把钢管混凝土结构应用于拱桥中，由于钢管混凝土拱桥具有承载力高、跨径大、延性好、施工快捷，具有良好的综合效益，因此，在我国发展迅猛。

The primary objective is to study the effect of high-modulus PVA fibers on improving the seismic performance of super-high-strength concrete short column s with high axial pressure ratio.

试验旨在研究在较高轴压比条件下，高弹模PVA纤维对超高强混凝土短柱抗震延性的改善作用。

The correctness of theory analysis is proved by the test results of 5 concrete-filled double steel tubular short column specimens subjected to axial compression load.

试验结果表明，在轴心受压荷载作用下双钢管混凝土柱的受力全过程是由弹性、弹塑性以及破坏3个阶段组成的，具有很好的延性。

In this paper,the application of direct displacement-based design method which is the most representative performance-based design method for the shear wall structure will be studied.

引言基于位移的抗震设计方法大致可归纳为：按延性系数设计的方法，能力谱方法和直接基于位移的设计方法。

In fact, beam-to-column web connections are as widespread as flange connections in the steel frames, the principle of strong column weak beam upon the aseismic performance of steel moment resisting frame works as the same in the beam-to-column web connections design.

在钢结构框架中，梁柱腹板连接同翼缘连接一样普遍，而且其刚性连接延性的改善与设计同样迫切和重要；此外，RBS 型梁柱腹板刚性连接的研究非常不足，相关资料及其缺乏。

The natural vibration period of structure,story drift, variation characteristics of story lateral displacement,stiffness,energy dissipation feature and investment-income of the three structural schemes of eccentric braced steel frame,knee braced steel frameand moment resisting steel frameare compared.

偏心支撑、隅撑支撑钢框架通过耗能梁段发生剪切屈服耗能，大震下既能提供足够的刚度，又能保证一定的延性，具有较强的耗能能力，是高烈度地震区理想的结构体系s。'〕。

If improving the steel fire-resistant ability or enhancing the ductility of the structure, the collapse can be avoided.

如果能够提高结构的抗火能力或者提高结构的延性，将有可能避免结构倒塌，避免惨剧再次发生。

Strain rate hardening due to GBS suppressed the DRX softening and local necking so that the uniform and total elongations tended to increase at the temperatures of 400℃ and 500℃.

而晶界滑移所导致的应变速率硬化效果，则会降低动态再结晶对於材料的软化作用，进而增加AZ31B镁合金在400~500℃的均匀延伸率，并因抑制颈缩现象的进一步发生，而增加高温延性。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失