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Ultimate capacity of cross-section is partly determined by stress value of unbonded tendon. The stress value is determined by state of net concrete beam that relative to unbonded tendon under prestress, ultimate load and restriction.

承载力极限状态的无粘结筋的应力值部分决定了构件截面的承载能力，而这个应力值的大小取决于相对于无粘结筋束的净混凝土梁在预加力、极限荷载及约束条件下的状态。

It is large special plate and beam structure loaded in three dimensions with relatively complex load condition and structure pattern.

转台是铁路起重机的关键结构件之一，它是一种三维受载的大型空间板梁结构，受载状况和结构型式均较复杂。

A method of the buckling critical load for laminated beam and laminated plate under Hamilton system is presented on this basis.

本文首先简单地介绍了一下混合状态方程的重要性和与之对应的Hamilton正则方程的构造方法。

ABSTRACT In this paper, on the basis of three-dimensional BEM theory, a three-dimensional BEM program, which is used to calculate the deformation of gear tooth bearing surface load, is developed.

本文根据三维边界元理论，采用了适合于求解面载荷作用下齿轮轮齿变形的三维边界元程序。

This paper presented the mechanism of fretting fatigue failure that happened on the contact surfaces between sleeve and roll neck of oil-film bearing under the rolling load.

研究了油膜轴承锥套与辊颈接触表面在轧制载荷作用下发生微动疲劳损伤的力学机理。

The effect of hole diameter on load bearing capacity of aluminum alloy plate and composite laminate was analyzed.

分析计算了中心开孔损伤对铝合金板和不同铺层方式的复合材料板承载能力的影响。

Machinery self-lock and heavy load bearing plate type of chain lifting system.

机械式自锁，重负荷承载板式链条举升系统，安全性能高。

Second, the random variables in reliability analysis of the steel rail are discussed. These random variables include the wheel load, the stiffness of the rubber pad and the bed, the temperature stress and the fatigue ultimate strength of the steel rail. And their probability distributions and parameters are discussed thoroughly.

其次，对钢轨可靠度分析中涉及的随机变量如轮载力、轨下胶垫刚度、道床路基联合刚度、温度应力及钢轨疲劳极限强度的概率分布类型和统计特征进行了详细讨论。

Installs the engine bed horn the ground plane to be possible to use the concretes, may also be the lignin, request smooth seed; When installs, turns on lathe adjusts the screw rod, puts in the horn the engine bed on the load plate, then turns on lathe into the screw rod from above.

安装机床垫铁的地基平面可以用混凝土，也可以是木质的，要求平整结子；安装时，旋出调节螺杆，将机床置于垫铁的负荷盘上，然后从上面旋入螺杆。

Installs the engine bed horn the ground plane to be possible to use the concretes, may also be the lignin, request smooth solid; When installs, turns on lathe adjusts the screw rod, puts in the horn the engine bed on the load plate, then turns on lathe into the screw rod from above.

安装机床垫铁的地基平面可以用混凝土，也可以是木质的，要求平整结实；安装时，旋出调节螺杆，将机床置于垫铁的负荷盘上，然后从上面旋入螺杆。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。