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; 文献标志码:A 文章编号:1672-7207(2014)02-0581-08 Bearing resistance and its influence law of metal tube-indentation... was presented. Bolt-end pull-out failure mechanism was revealed by experiment and its mechanical model was built. The formula of bearing resistance was deduced using the slab method. The influence law of bolt......
-corner vertical reinforcement across joint core have no obvious influence on crack shear force of joint, but have influence on distribution of diagonal cracks in joint. Results from the proposed formula is in agreement with that of experimental results, which provides reference for actual project. Key words: reactive powder concrete; beam-column joints; crack capacity; influence factors 当混凝土达到极限拉应变......
, Central South University, Changsha 410083, China) Abstract: A theoretical model for bridge pile buckling in steep slope, by which the influence of distribution of landslide-thrust behind the pile... of length to diameter, and the critical embedded depth have significant influences on the buckling stability of pile. Key words: bridge engineering; steep slope; energy method; buckling; influence......
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; 文献标志码:A 文章编号:1672-7207(2010)02-0715-07 Hydrocarbon enrichment rules of depression period layer in Changling region of southern Songliao... was predicted from the point of "sequence controls sand" and "sedimentary microfacies control reservoir". Combined with analysis of hydrocarbon accumulation condition, rules of depression layer......
a maximum influence in the impact coefficient of moment at the mid-span. Moreover, the reliability of this program is validated by the orthogonal experiment. Key words: vehicle-bridge coupling; dynamic behavior; influence factor; finite element method 随着我国经济的发展,车流密度的不断加大,桥梁数量日益增多.为研究桥梁工作状态和安全性等问题,研究人员将移动荷载作用下的桥梁振动方程发展成车-桥耦合振动系统[1].近年来,各国学者对车-桥系统耦合共振问题做了很多研究.郗艳红等[2]把车辆简化为移动质点,指出了桥梁质量移动速度与动力系数的关系.李永乐等[3......
that with the increase of error, the value of the influence function in the RRTLS algorithm decreases, and the algorithm has high anti-outliers ability. When there are outliers, the results... estimation; influence function 机载单站无源定位因具有较高的军用和民用价值而得到广泛应用,其采用的定位方式主要有测角定位,到达时间定位,多普勒效应定位等[1-5].一些测量环境较复杂的应用,角度信息也许是唯一能够得到的观测量,因此,研究单站测角无源定位具有重要的理论意义和实用价值.观测到目标位置的角度信息后,无源定位就转化为利用角度信息估计目标位置的问题.最小二乘(LS)估计......
, FUKUYAMA T. Influence of temperature on erosion by a cavitating liquid jet[J]. Wear, 2006, 260: 1217-1223. [16] KWOK C T, MAN H C, LEUNG L K. Effect of temperature, pH and sulphide on the cavitation... morphologies, surface roughness and electrochemical corrosion behavior of Ti-4Al-4V in LiBr solution at different temperatures. Furthermore, the influence mechanism of temperature on cavitation corrosion......
and liquid viscosity have little influence on the swirling field strength, but the sand-carrying rate of fluid can increase by increasing liquid viscosity in a certain range; 3) Rotating the string...; influence factors......
