桥梁

Combining with the National Natural Science Foundation ofChina(No.50478032), following researches were done in this thesis: 1 The variation regularity of the ultimate anti-bending capacity of therectangular-sectioned beam with different corrosion has been obtained through thequalitative analysis of 48 beams (32 corroded beams and 12 comparing beams) withaccelerated corrosion; 2 The conclusion has been obtained that the strain of corroded steel bar andconcrete no longer fit in with the assumption of plane section through the analysis ofthe strain data, the strain relation of steel bar and concrete in the mid-span section ofvariously corroded beams at ultimate has been obtained. Through the building of newgeometric relation, the expression of the height of compressive area in the corrodedbeam with rectangular section has been deduced, and the formula with corrosion rateas the main variable for the anti-bending capacity of the corroded concrete beam hasbeen suggested and verified by experiment.; 3 The influence of steel bar corrosion and the concrete regression to the flexureductility coefficient of the corroded structure component has been analyzed. Based onthe relation of steel bar and concrete at yield and ultimate, the expression for theflexure at yield and ultimate of corroded reinforced concrete beam, and the model forthe calculation of the flexure ductility has been built.

本文结合国家自然科学基金项目(50478032)"既有钢筋混凝土桥梁时变可靠度研究"，主要进行了以下研究工作： 1通过对48根快速锈蚀钢筋混凝土矩形截面梁(32根锈蚀梁和12根对比试验梁)数据的定性分析，得到了不同锈蚀率下，锈蚀钢筋混凝土矩形截面梁极限抗弯承载力的变化规律； 2通过对应变数据的分析，论证了锈蚀构件钢筋和混凝土的应变不再符合平截面假定的结论，并通过回归分析得出了不同锈蚀率的螺纹钢筋梁和光圆钢筋梁在极限弯矩作用下，跨中截面处钢筋应变和钢筋处混凝土应变的关系，通过构造新的几何关系，得出了锈蚀钢筋混凝土矩形截面梁计算受压区高度的表达式，既而得出了以锈蚀率为主要变量的锈蚀钢筋混凝土矩形截面梁的正截面抗弯计算建议公式，并通过试验数据加以验证； 3分析了钢筋锈蚀和混凝土劣化对锈蚀构件曲率延性系数的影响，结合钢筋屈服和极限弯矩两种状态下钢筋和混凝土的应变关系，分别得到了锈蚀钢筋混凝土矩形截面梁屈服曲率和极限曲率的计算表达式；既而推导出曲率延性系数的计算模型。

Because of this, we can trust that our planes and bridges won't fail.

因为这样，我们可以相信我们的飞机和桥梁将不会失败。

In a world with growing stark challenges, the humanity has never needed so much mutual understanding, magnanimity and cooperation as we do today in this dwindling plante of ours, and never aspire so much to share the Olympic value and sprit and erect a bridge of unity and friendship as we do today.

在这个挑战日益严峻的世界，在我们这颗越来越小的星球，人类从未像今天这样需要相互理解、相互包容、相互合作，也从未像今天这样渴望分享奥林匹克的价值和精神，搭建团结友谊的桥梁。

Our focus is to play the role of cultural exchange bridge between China and West World.

我们的目的是在中国与西方世界之间，建立一座文化交流的桥梁。

This paper developed Feynman-Kac theorem in connection with multidimensional Poisson jump-diffusion stochastic differential equation.

在随机分析学中，Feynman-Kac公式是联系概率论与偏微分方程的桥梁。

Bridged theclassical music and modern music, Symphony No. 7 inserts lots of modern compositiontechniques into the classical musical structures, such as the unique "Prokofiev"sharmony, the canonic melody of horizontal polytonality, and hybrid structuralborderline form.

作品将独特的"普氏和声"、多调性横向进行的卡农式旋律、混合结构的边缘曲式等现代作曲技法，巧妙地组织在古典调性音乐的结构之中，从而在古典音乐形式与现代音乐语汇之间搭起一座由此及彼的桥梁。

Software Description: About Pontifex II, In Pontifex II, you design and build bridges.

Pontifex II 在 Pontifex II 中，你设计和建造桥梁。

All of which come out of the "pork barrel"of the federal budget.

就像奴隶能从肉桶中分得多少肉一样，与党的领导人合作的议员往往会为自己所代表的选区争取到更多的拨款，用于修筑公路和桥梁、修建联邦机构设施，以及为本地企业家争取军品合同等———这一切都来自联邦预算的"肉桶"。

When the political parties are in office, the non-democratic phenomenon is the following:"pork barrel"; the parties play important roles in the executive, legislative and judicial authorities; the parties are establishing identification with the government.

具体表现为政党取得执政资格后按党派意志分配官职而形成的政党分肥制、政党对国家立法、行政、司法部门权力的渗透使得政党从充当社会与国家之间桥梁的角色转向社会的对立面而与国家一体化的趋势。

The New York Port Authority said it had closed all bridges and tunnels into the city.

纽约交通部门权威人士称所有入城桥梁和隧道均已关闭。

They go to town. Would you just ask them?

他们在城里你能问他们吗？

Ossein pretreated for a2 weeks period exhibited the maximum% yield incase of bone gelatin, while the yield from intact skin was higher than that realized incase of de-scaled skin.

预处理时间达2星期的骨胶原表现出最高的骨明胶百分产量，然而从未处理鱼皮中得到的产率比去鳞的鱼皮得到的要高。