破坏荷载

The flexural capacity, deformation and failure modes of beams with different parameters can be analyzed using the program, such as types of plan and prestressed tendons(extrenal prestessed tendons, internal unbonded prestressed tendons, internal bonded prestressed tendons), jacking and effective stress in external prestressed tendons, configuration of the deviators, properties of tendon, ratio of span to effective depth of the beam and load pattern, initial loading state at tendon jacking, etc.(3) Nonlinear behaviors of the concrete beam prestressed with external or internal unbonded tendons were studied by the program developed.

本程序可以对任意截面型式的预应力(体外预应力筋、体内无粘结预应力筋、体内有粘结预应力筋)混凝土梁和普通钢筋混凝土梁进行非线性全过程数值分析计算，程序可以就转向块的布置方式、体外预应力筋纵断面形状、体外筋有效预应力的大小及材性、张拉预应力筋时梁的持荷状态等因素对体外预应力混凝土梁在外荷载作用下的强度、变形特征、破坏模式等的影响进行分析研究。

As a kind of high intensity winds, the downburst usually comes forth during thunderstorm and has caused numerous structural failures around the world.

作为自然界的一种强风荷载，雷暴天气产生的下击暴流风在世界范围内造成了大量工程结构物的破坏。

The bearing capacity,deformation and failure state of various dimension of beehive iron plate under various load were discussed.

通过不同尺寸的铁金属蜂窝复合板在不同荷载作用下的结构性能实验，分析和论述了这种板的承载力、变形及破坏特征，对该种板的生产和使用有一定的指导作

The stress and strain concentration region of the shaft sidewall under the three loads,and the correctness of lyophobic additional force theory is demonstrated.It can guide the shaft sidewall design theory and the determination of strengthening region.

确定了立井井壁在这三种荷载综合作用下的应力、应变集中区，论证了井壁破坏理论中疏水附加力理论的正确性，对井壁设计理论以及加固区域的确定提供了一定的理论指导。

The surface on the steel bridge is easy to damage early than estimate years.The distress types in steel bridge surfacings include permanent deformation,cracking,formation of mounds and disintegration.The text analyses the vertical section strain under tire location by use of the finite element method and calculates the influence of stiffness variance of translate bonding layer on the surfacings of steel bridges.

中文摘要：钢桥面沥青铺装层在使用一段时间后容易出现开裂、脱层以及车辙等早期破坏现象，采用空间有限元分析方法对车轮荷载位置处的截面竖向应变进行分析，计算了过渡粘结层刚度变化时对钢桥面铺装层受力变化的影响，计算结果说明对传统的弹性层状计算理论的假定与实际受力情况存在较大差异。

The test results shows that the stress-strain curves of the remoulded expansive soil samples were stress-hardening owing to competely damage of the soil construction under different matric suctions and vertical stresses.

试验结果表明，在不同的基质吸力和竖向荷载下，重塑膨胀土试样由于结构性遭到彻底的破坏，应力应变关系表现为应变硬化特性。

Compared with soil destroyed pattern of vertical force and its controlled factor of bearing capacity,it is concluded that pile capacity and its tip resistence have some difference when soil with the same physical mecanic property is used as natural foundation and pile tip resistent layer.Whereas the middle weathering rod Stratum hasn't this property,that is to say it has the same bearing capacity and pile tip resistence.

文摘：通过竖向荷载下土体的破坏模式及其承载能力控制因素的比较，论述了物理力学性能相同的土层作为浅基础的天然地基与桩端持力层时，承载力值与桩端阻力值应存在一定的差异；而中风化程度的同一岩层作为天然地基与桩端持力层时，不具有这方面的差异性，承载力值与桩端阻力值应该相等。

As one of important life line systems,the damage of transmission tower could cause great economic loss.

统计显示，风荷载作用下输电塔结构的动态侧倾失稳是输电线路经常发生的破坏形式之一。

In-situ monitoring gave the following results: 1 a tension stress zone occurred at the bottom of reinforced rock mass which indicated that the role of rock bolting was remarkable; 2 stress concentration at surrounding rock of main shaft was gradually transferred from shaft wall to complete rock mass far from shaft center; 3 vertical displacement was gradually smaller from up to bottom and from center to outside of the reinforced loose rock mass.

首先，建立了主溜井三维有限元计算模型，模拟了主溜井围岩的塌落破坏过程和加固后的加固体的稳定性及变形特性；同时，还采用多点位移计等对加固体的稳定性进行了实地监测。计算结果表明：网棚锚注加固体的纵剖面上的压力和位移规律是①加固体下部局部出现拉应力区，表明锚杆的使用是合理的；②加固体内的应力由塌落中心向周围围岩过渡，应力越来越大，最终将荷载传至围岩中；③从下到上下沉逐渐减小；④从加固体中心到周围下沉位移逐渐减小，且近似一条抛物线。

The correctness of theory analysis is proved by the test results of 5 concrete-filled double steel tubular short column specimens subjected to axial compression load.

试验结果表明，在轴心受压荷载作用下双钢管混凝土柱的受力全过程是由弹性、弹塑性以及破坏3个阶段组成的，具有很好的延性。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。