抗力

On this basis,a risk analysis is made on the reinforced concrete short column acted upon by a dead load;and then i...

在此基础上，对受静力荷载下的钢筋混凝土短柱进行了风险分析，进而阐明了构件抗力时变性对构件的风险率产生了不可忽视的影响。

Selecting corresponding rolling force model, the paper make an experiment and studies on cold rolled paper-thin strip processing characteristics of sixteen-roll rolling machine based on cold-rolled theory aand forms corresponding rolling model, tension model and moment calculation model .And comes to a conclusion that distortion force and press utmost have a large effect on rolling force and paper-thin strip shape, primarily presenting paper-thin strip rolling subarea theory that rolling force decreases corresponding to the thick decrease of strip but increases rapidly when to a certain thick.

结合带钢冷轧基本理论，选用适当的轧制压力模型，针对十六辊轧机轧制极薄带钢时的工艺特点进行了实验和分析，建立了相应的张力模型及辊系传动力矩模型；并得出变形抗力及压靠对轧制极薄带钢时的轧制力和板形有很大的影响，初步提出了当带厚较大时，为保持板形良好，随着轧件厚度的减少，轧制压力相应降低，当轧制到一定厚度时，轧制压力随着带厚的减少急剧增加的极薄带轧制分区理论。

It is shown that both strength and delayed fracture resistance of 42CrMoVNb steel increase when its grain size is refined from 20 m to 4 m, but they do not increase when refined to 2 m.

结果表明，随着晶粒细化， 42CrMoVNb钢的强度和缺口拉伸延迟断裂抗力逐渐提高；但当晶粒细化到2 m时，强度和延迟断裂抗力均不再提高。

Japonicum infection only maintain a short period of time, the last of the resistance to reinfection needs to be stimulated by S.

日本血吸虫感染所诱导的再感染抗力持续时间较短，提示抗力的维持可能需要抗原的反复刺激才能实现。

Under the conditions of fast heating, fast cooling and thermal cycling with larger temperature difference, it is concluded that(1)under appropriate strength and toughness, in creasing the vermiculating rate can enhance the thermal fatigue resistance of vermicular graphite iron;(2)increasing the vermiculating rate by a big margin can also enhance...

在快速加热、快速冷却以及较大热循环温差的服役条件下得出：(1)当强韧性相当时，提高蠕化率可提高蠕铁的热疲劳抗力；(2)大幅度提高蠕化率，尽管强韧性有所下降，但亦可提高蠕铁的热疲劳抗力。

Based on SEM observations of eroded surface as well as simulative measurements of plough-cutting resistant capacity W and localized surface layer elasticity h for the tested alloys, an attempt has been made to discuss the failure mechanism and factors characterizing the resistance.

结果表明，Fe-25Mn-6Si-7Cr形状记忆合金在含沙多相流中的失效机制主要是泥沙犁削，其损伤抗力因高的局域弹性和高的犁削抗力而优于不锈钢0Cr13Ni5Mo，局域弹性高是其损伤破坏速度效应低和空蚀与泥沙冲刷磨损交互作用小的根本原因。

The results indicate that the thermal fatigue of the cast hot-work die steel is high-cycle thermal fatigue, therefore the main factor affecting thermal fatigue resistance is thermal strength and thermal stability.

随着V/C增加，热疲劳抗力先增后减，当V/C比为3.0时，组织中析出了细小弥散的VC，改善了钢的热强性和热稳定性，热疲劳抗力最高。

The precision of gauge control of hot-rolled strip is directly affected by the calculating precision of rolling force model, where the rolling pressures in the models are mostly decomposed and become the product of the influence coefficient in stress state arid resistance to deformation.

轧制力模型的计算精度直接影响热轧带钢厚度控制精度，目前大多数轧制力模型都把轧制压力分解成应力状态影响系数和变形抗力的乘积。

Secondly, the paper will establish the theoretical probability models of structural resistances and loads of highway bridges to analyze their dispersive laws and relevant statistical parameters, and gain the statistical information of structural resistances and loads that the structural reliability design and analysis of highway bridges need.

同时，基于桥梁结构构件抗力的基本特征，主要通过两种间接方法进行抗力的统计分析。3。

The results show that: The mechanical behavior of universal segment lining is different under different assembling modes, which relates to the assembling types, places of transverse and longitudinal joints and position of the seal roof block the objective segment ring; design values of positive and negative moments, shearing force of segment liming and shearing forces of longitudinal bolts of universal segment lining are controlled with staggered joint assembling, and design values of deformation and surrounding rock resistances are controlled with straight joint assembling.

结果表明：通用管片结构在不同拼装方式下的力学行为是不相同的，与拼装类型、分析目标环的环向和纵向接头的位置、封顶块的位置有关；错缝拼装控制通用管片结构正负弯矩、剪力、纵向螺栓剪力设计值；通缝拼装控制变形量和地层抗力设计值。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。