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In high seismic regions, eccentrically braced frames are quite popular, they have good ductility and can sustain to severe cyclic loads, and they are used widely in seismic design.

在强震区,偏心支撑框架是一种非常合适的结构形式,它具有良好的延性可以承受剧烈的循环荷载作用,在抗震结构中已得到了广泛的应用。

So the calculational results of the formulas are emanative. Avoiding to use the empirical coelfficients are in the analytic process and based on the stress-strain relation between core concrete and steel tube the ultimate bearing capacity and the deformation characteristic of the steel-encased reinforced concrete columns are investigated in this paper. Then the reasonable stress-strain model is given for the further work of the damage analysis of steel-encased concrete and aseismatic ductility.

本文在分析过程中尽可能的避开经验公式,从核心混凝土与钢管的应力-应变关系入手,通过应力协调与应变相容的条件对配有圆钢管的钢骨混凝土构件的极限承载能力与变形性能进行研究,提出合理的应力-应变关系模型,为进一步的钢管混凝土结构损伤、抗震延性分析做好准备工作。

Tensile ductility of lamellar microstructure is higher than that of equiaxed one at 20 K.Its deformation process consists of twinning and slipping.

低温下粗大的片状组织比等轴组织具有更高的拉伸延性,且合金的变形是由孪生变形和滑移变形共同作用的结果。

Many structural deficiencies and mistakes were highlighted, which including excessive horizontal displacement in the ground, more severe damaged transition layer (the first masonry structure layer), ground with farraginous structure, and poor construction quality. Finally, lateral stiffness ratio of the second to ground story in masonry buildings with RC frame structure at the bottom will be optimized following difference of materials between the ground floor and the upper floors. The strength and the ductility of transition layer, as well as shear walls in the ground floor, are crucial to keep the building standing during large earthquake.

在介绍和总结了汶川地震中底框砖房的表现―底层过大的水平侧移、过渡层严重破坏或完全坍塌、底层严重破坏或房屋完全倒塌、上部砌体整体发生侧移、以及设计一和施工质量良好的底层抗震墙砖房&大震不倒&的基础上,得出以下结论和建议:在抗震设防地区应禁止使用部分底框砖房,地震中过渡层的实际受力情况与设计所采用的受力状态有明显的区别,规范应考虑砌体和钢筋混凝土材料的不同力学性质来制定上下层刚度比要求,明确对过渡层的延性和强度要求,明确该类结构抗震概念设计的具体措施。

The main reasons for relapse were fastidium and impunity, craving for using it again, temptation by peer users, feeling discrimination, self-humiliation, protracted withdrawal symptoms.

戒毒后复吸的主要原因有&无聊无事&,&想再尝试一口&,&毒友诱惑&,&感受到歧视、自卑&,&稽延性戒断症状&等。

Totally 60 semi-circular bending specimens cored from superpave gyratory compactor with three groups of notch depths are tested at the temperature of-10 and 20℃ The experimental results reveal good repeatability in EAM characterization. The tensile strength ratio of SCB to the indirect tensile test is at a range of 1.4 to 1.7, and the ultimate strength of EAM is exponentially dependent on the notch depths. At the test temperatures, the critical J-integral value of EAM is much higher than that of hot mix asphalt with thermoplastic asphalt binder. The response mode of EAM changes from ductile mode to brittle mode and the fracture energy increases 30% when temperature decreases from 20 to-10℃, while its critical J-integral value decreases only 15%.

结果表明,环氧沥青混合料的半圆弯曲试验结果复现性好;由非切口试件的半圆弯曲试验与标准间接拉伸试验所测得的环氧沥青混合料的抗拉强度,其比值在1.4~1.7之间,且SCB抗拉强度与切缝深度指数相关;在20℃与-10℃试验条件下,环氧沥青混合料具有比热塑性HMA高得多的临界J-积只分值;当温度由20℃降至-10℃时,环氧沥青混合料的响应模式由延性变为脆性,断裂能增加30%,而临界J-积分值下降15%。

In this program, the declining segment of the stress-strain relation of the concrete, the restriction effect of hooped reinforcement and the bond-slip problem of the reinforcement are considered, as the same time the optimized arithmetic is applied to accelerate calculation procedure. Though the appropriate experiment arrangement, the influential factor such as the strength of concrete, the ratio of hooped reinforcement, the ratio of axial compression and the loading angle are researched, some available rules of carrying ability and ductility of the special-shaped column can be attained.

程序中考虑了混凝土应力应变曲线的下降段及箍筋对混凝土的约束影响,采用了合适的算法加速计算过程并考虑了纵筋锚固滑移的影响,通过正交试验分析了混凝土强度、体积配箍率、轴压比和荷载角对异形柱截面抗弯承载能力及截面曲率延性比的影响。

In addition, rigid steel frame model also has been established and compare their hysteretic curve and ductility too.

另外,本文建立了刚性和半刚性两种框架模型,分别就其滞回曲线、延性等方面进行了比较。

Then at the fourth component, hysteretic behavior of five different modes was analyzed.

另外,这种节点在更大的荷载作用下也具有很好的延性,说明其抗震性能也不错。

Finally three kinds of usual methods to determinate the limit values for axial compression ratio of frame columns, their merits and shortcomings are analyzed according to comparison and in the end this paper adopts the measure of curvature ductility to determinate the limit values for axial compression ratio of the arbitrarily inequiaxial special-shaped R.C columns.

最后介绍了目前确定框架柱轴压比限值常用的三种方法,并对比了三种方法的优缺点,最终采用延性度量的方法确定了不等肢异形柱的轴压比限值,对实际工程具有很好的参考价值。

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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

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。