梁

The composition, function and characteristic of uncapping system are described, and the critical parts of the system are analyzed and calculated by using finite element method. The related action process of the spread of ring-like pressure mine girder and the motion of sail mine is analyzed with simulation interference. Theoretical calculation and simulation interference analysis show that the system can solve four actual problems and meet operational requirement.

介绍了环形压雷梁开盖系统的组成、功能和特征，深入分析了系统作用载荷，着重对系统的特征关键件进行了有限元分析与计算，并对环形压雷梁展开与航行雷运动的关联动作过程进行了详细的仿真干涉分析，理论分析及仿真结果表明，采用本技术能够解决4个方面的实际问题，满足使用要求。

Domestic unseating prevention system without design is done as construction measures, which, therefore, can't ascertain the effect of unseating prevention system.

目前国内所采用的防落梁装置一般是作为构造措施，没有经过计算和设计，在地震作用下很难起到真正的防落梁效果。

Especially effect of differential settlement. Compare with two connection forms in expended P.C.

拓宽后的连续箱梁需要特别注意梁体底板及拼接翼缘板根部在中跨跨中截面和支点截面的混凝土纵、横向拉应力计算。

A three-dimensional finite element spatial mechanics model for calculating the additional longitudinal force transmission between continuously welded rails and high-speed railway bridges is established by using solid element to simulate bridges as well as pier and abutment,using space beam element to simulate rails,using spring element to simulate the link between bridges and tracks as well as pier and abutment.

采用实体单元模拟桥梁及桥梁墩台、空间梁单元模拟钢轨、弹簧单元模拟桥梁与墩台及轨道之间的连接，建立梁—轨纵向相互作用三维有限元空间力学模型。以丰沙线永定河单线铁路桥梁、秦沈线沙河双线铁路桥梁对其进行计算验证。

The article elaborated on the principle of the anchor bar support,analyzed supporting effect of driection and support parameter of anchor bar,in the field of changing state adjoining rock strained condition,flexure stress of reinforcing and reducing rock beam.

从改变围岩受力状态、形成挤压加固顶板、加固岩梁及降低岩梁所受的弯应力等方面，阐述了锚杆的支护原理，分析了锚杆的安装方向和锚杆支护参数对支护效果的影响。

The structural configuration of traveling carriage is demonstrated. The connection problem of anchor joint between space cable and traveling carriage is solved by arc-shaped beam and former anchoring beam.

论证了红枫湖大桥挂篮的结构形式，并通过采用弧形梁、前锚梁解决了空间斜索面斜拉索与挂篮连接的问题。

Experimental expressions are obtained when the vertically inclined angle of steel webs changes, and they can be used for bridge design.

最后提出了波形钢腹板箱梁减小翘曲正应力的工程措施，研究了横隔板纵向间距与箱梁的高跨比之间的关系，并给出了当钢腹板倾斜角度变化时相应的横隔板最大间距的经验公式，以供设计参考使用。

The shaker mount is first moved a small distance toward the arch ends to ensure that the arch possesses two stable equilibrium positions, one on each side of the base line. The spring connecting the arch end and the mechanical shaker is carefully chosen such that small shaker stroke can induce large vibration amplitude of the arch.

此外，我们在激振器与拱形梁之间外加一个弹簧做连接，这可使激振器在仅能达到有限的激振振幅下，仍能使拱形梁端点有足够大的振幅产生，并使之能够发生折断式挫曲现象。

There are many methods for computation of the slope and deflection of beams such as the integration method, the finite difference method, the Macaulay's method, the Mohr's 'area-moment' method and so on. They possess mostly the characteristics of complex computing or searching schematics.

有多种方法求梁的位移，如积分法、迭加法、初参数方程法、其轭梁法、有限差分法、奇异函数法和莫尔&面积一力矩&法等等，其大都具有或计算复杂或依赖各种不同的图表等特点。

The state of the art of concrete filled square steel tubes is presented generally based on the research data of connection between concrete filled square steel tubes and beams.

综合国内外关于方钢管混凝土梁柱节点研究的相关资料，介绍了方钢管混凝土梁柱节点在国内外的研究现状。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。