china's oil safety and the oil policies of 5 main mid-east oil-producing countries

transformation of ingot stripping machine system

卸锭机系统改造

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the relation between stress ratio and span centre deflection is linear, and when the stress ratio is large, the increase of mid-span deflection by cycle index is small.

应力比对跨中挠度的影响呈线形关系，且应力比较大时，跨中挠度随循环次数的增长相对较小；

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through dynamic response under fatigue vehicle load, the stress in the key parts and the changes of the mid-span deflection are derived for the further fatigue analysis for the bridge.

通过疲劳车辆荷载下的动态响应分析，给出桥梁关键部位的应力及跨中挠度的变化。在此基础上还可进一步做桥梁的疲劳破坏。

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the mid-span deflection of slight corrosion specimens is smaller than that of non-corrosion specimens on the static loads and the fatigue loads;

轻微锈蚀试件梁的跨中挠度在静载和循环荷载下比未锈蚀梁小；

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and the deflection analytical solutions of composite beams under a concentrated load at the mid-span and symmetrical concentrated loads and uniform loads are solved.

求解出工程中常见的均布荷载、集中荷载，对称集中荷载作用下组合梁挠度解析解。

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the stress level of steel truss is lower, and stress level of end chord is smaller than that of the mid-span chord and end web member.

钢桁架整体应力水平均较低，但其端部弦杆最大应力达到跨中弦杆的50%左右，不是理想的简支状态。

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then, cracking, mid-span down-warping and other diseases are mentioned, in addition, cracks are classified by different principles.

然后，探讨了裂缝、跨中下挠等病害，并将裂缝按照不同的方法进行归类。

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performances of the beams are compared and assessed with particular emphasis on cracking behavior, mid-span deflection, and ultimate strength capacity.

试验中对比了加固与未加固构件的裂缝开展情况、跨中挠度以及极限荷载。

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the novelty of this cable lies in its easy mid-span access that allows the cost reduction of distribution networks for scattered customers.

这种光缆的主要特点在于容易从跨度中间接入，有利于降低分散用户的配线网建设成本。

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the conclusion of this paper is useful to design and construct the continuous rigid frame bridge, to avoid the disease of mid-span deflection.

解决措施方面，则对最为常用的方法，增加体外预应力筋进行了模拟分析。其结论能为设计和施工此类桥型、和有效避免跨中挠度过大提供有效的参考。

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with increasing water depth, the maximum displacement, velocity and acceleration of bridge mid-span ( or pier top) are decreased.

随着水的深度不断增加时，跨中（或墩顶）的最大位移、速度和加速度也逐渐减小。

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analysis on the current status of damage and reasons of mid-span ( small-span) concrete box-girder bridges

中小跨径混凝土箱梁桥病害现状与成因分析

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an approximate theoretic method dealing with the maximum mid-span deflection of the column when breaking is advanced.

文中提出了偏压构件折断时，跨中央最大破坏挠度的近似理论计算方法；

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experimental investigation of hollow aluminium-alloy beams of square tube subjected to projectile impact at the mid-span

方管铝合金梁受子弹撞击时动力响应的实验研究

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stress calculation for horizontal vessels with double saddles in which structure and loads asymmetric to mid-span section

结构和载荷相对于跨中截面非对称双鞍座卧式容器壁中的应力计算

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new technique for eliminating fault of the tenon of fan blade with mid-span shroud

一种排除带凸肩风扇叶片榫头故障的新方法

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ultimate stress in unbonded tendons of partially prestressed concrete beams under mid-span loading

跨中集中荷载下部分预应力梁无粘结筋极限应力的研究

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through field work, the dynamic response of mid-span and support cross section under six operating modes was researched.

以上海浦东高速磁浮交通示范线为背景，对6种工况下道岔箱梁跨中截面、支承截面等进行了动力响应原位实测，采集道岔的加速度响应。

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study on calculating formula of mid-span deformation of concrete continuous beams strengthened with gfrp bars

GFRP筋混凝土连续梁跨中挠度计算方法研究

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structural design of mid-span shrouds for aircraft engine fan blades

航空发动机风扇叶片凸肩的结构设计

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