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结构力学
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  structural mechanics
    2. Analysis of stress of multi-arch dam was made using the method of structural mechanics.
    2.采用结构力学法对连拱坝进行结构应力分析。
短句来源
    3-D solid elements of the finite element are used to establish a 1/6 model of the rotor,and the structural mechanics is analyzed.
    应用有限元的三维实体元素建立了转轮体 1/ 6结构的分析模型 ,并对其进行了结构力学分析
短句来源
    The article is briefly introduced the plane photoelastic model of Qihe river inverted siphon and the test with load on simulation of water in river course and without water in pipe, comparing and analyzing the results with structural mechanics and two-dimensional finite element results.
    介绍淇河倒虹平面光弹模型设计及加载试验 ,并将试验结果与结构力学和二维有限元结果进行比较分析。
短句来源
    Based on analysis of the dam's structural mechanics behavior and its joined observed displacement data(droop line), this paper has applied low probability method and hybrid model method of structural analysis to study the safety monitoring index of horizontal displacement of Shuikou dam.
    在对水口水电站大坝结构力学特征和对位移监测资料(垂线)进行衔接的研究分析基础上,利用小概率法和结构分析的混合模型法拟定了水口水电站大坝水平位移的一级安全监控指标。 通过对两种方法的比较,可以确定结构分析的混合模型法的计算结果更为合理。
短句来源
    The method usually used in the course of powerhouse designing at present is the method of structural mechanics, the method of mechanics of materials and finite element method.
    目前在水电站厂房设计中通常用到的方法有结构力学、材料力学法和有限元法。
短句来源
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  the structural mechanics
    3-D solid elements of the finite element are used to establish a 1/6 model of the rotor,and the structural mechanics is analyzed.
    应用有限元的三维实体元素建立了转轮体 1/ 6结构的分析模型 ,并对其进行了结构力学分析
短句来源
    In the structural mechanics method, elastic thin wall column shell and thin slab theory is used in the computation of sidewall and bottomplate, and underground frame moment distribution method is used in the analysis of sidewall and bottomplate taking into account their rigid connection.
    结构力学方法使用弹性薄壁圆柱壳和薄板理论计算调压井井壁与底板,并考虑二者刚性连接,采用地下框架弯矩分配法对井壁和底板进行弯矩分配。
短句来源
    the results of FEM method and elastic mechanics method are compared, stress transfer and composition of internal force based on the result of FEM analysis is carried to make comparison of the structural mechanics computation result and FEM result, and the reason for the difference is studied fromthe analysis theory.
    将有限元计算结果与弹性力学解答做出比较; 对有限元计算结果进行应力转换和内力合成,对比分析有限元和结构力学计算结果,并从结构分析理论出发探讨导致结果差异性的原因。
短句来源
    In the structural mechanics method, elastic thin wall column shell and thin slab theory is used in the computation, and consider two rigid conjunctions, adopt underground frame bending moment allotment method to admeasure the wall of a well and the scaleboard bending moment.
    常规的结构力学方法使用弹性薄壁圆柱壳和薄板理论计算调压井井壁与底板,并考虑二者刚性连接,采用地下框架弯矩分配法对井壁和底板进行弯矩分配。
短句来源
    The structural mechanics and finite element methods have been generally used in the stress analysis of concrete diaphragm wall. The results from the former could be a big difference from that of actual observation on prototype, or even gain a complete opposite conclusions.
    以往混凝土防渗墙的应力分析中,大多采用结构力学方法或有限元计算方法,前者与原型观测有较大差异,甚至出现相反的结论;
短句来源
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  mechanics of structures
    There are main three methods in the stress analysis and the stability analysis of the pumping station at present time, which are mechanics of structures method mechanics of materials method and finite element method.
    目前泵站厂房结构的分析方法主要有:结构力学法、材料力学法和有限单元法。
短句来源
    At present, the main methods in the stress analysis and the stability analysis of the pumping station are: mechanics of structures method, mechanics of materials method, finite element method.
    目前,泵房结构的主要分析方法有:结构力学法、材料力学法和有限单元法。
短句来源
    There are main three methods in the mechincal analysis and the stability analysis to the workshop of pumping station at present time, which are mechanics of structures method、 mechanics of materials method and finite element method.
    目前泵站厂房结构的分析方法主要有三种方法:结构力学法、材料力学法和有限单元法;
短句来源
  “结构力学”译为未确定词的双语例句
    The article analyzes three calculation methods for Tunnel 7 # segment structure of Yellow River Diversion Project Connection Works, and the final caculation results has been applicated successfully in the project and obtained the expected effect.
    万家寨引黄联接段工程 7#隧洞TBM施工采用的拼装式管片衬砌结构设计中用的结构力学方法、平面有限元法、空间有限元法 3种计算方法进行了分析和讨论 ,最终选定的计算成果已在工程中的成功运用 ,检测表明 ,达到了预期效果
短句来源
    Numerical simulation of meso-level mechanical properties of roller compacted concrete
    碾压混凝土细观结构力学性能的数值模拟
短句来源
    ③ Point out the characteristic in size and safety of tailing dams at home, after the definition of the tailings reservoir system, some mechanical characteristic and its evolving variation of above system has been analysed.
    ③ 提出了尾矿库系统的概念,并对我国尾矿工程规模和安全上的特点和尾矿库系统的组成特点、尾矿库系统的力学特性及其演化控制变量进行了分析。 ④ 结合尾矿颗粒在平面及竖直面的不同分布特点,分析了土工织物增强尾矿砂复合材料因相几何、相物理以及荷载特征变化对结构力学性能的影响;
短句来源
    The characteristic of water elastic model is that it can satisfy hydraulicssimilarity principle and structural dynamics similarity principle simultaneously. Itcan reflect the complex coupling action between prototype structure and wateraccurately.
    水弹性模型的特点是可以同时满足水力学相似和结构力学相似,能够较精确地反映原型结构与水体相互耦合的复杂情形。
短句来源
    Additionally, classification system of surrounding rock mass that appeals to this area is explored by properly modi1~uing the system brought forward in Engineering Rock Mass Class qlcatian Standard Stability analysis of the hat under different kinds of rock mass structure is completed and the upper wall stability of the main workshop is studied in the light of SMR system used in slope stability analysis.
    分析了不同岩体结构特征的洞室顶板稳定性,按照结构力学理论进行了缓倾角错动带的临界厚度计算,用Unwedge程序分段进行了潜在失稳块体的搜索,并借助边坡稳定性SMR系统,分析了主厂房上部边墙的稳定性。
短句来源
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  structural mechanics
Advances in structural mechanics of Chinese ancient architectures
      
The researches on the structural mechanics of ancient architectures show the different aspects of structure and mechanics.
      
Systematical studies on the structural mechanics of ancient architectures have been carried out at Xi'an Jiaotong University since 1982.
      
Many historical buildings have in fact problems of structural strength and stability; the need for further studies on structural mechanics and materials is definitely growing.
      
This turbine blade optimization is based on the optimization frame software iSIGHT, in which four disciplines (aerodynamics, thermal dynamics, structural mechanics and structural dynamics) have been integrated.
      
更多          
  the structural mechanics
The researches on the structural mechanics of ancient architectures show the different aspects of structure and mechanics.
      
Systematical studies on the structural mechanics of ancient architectures have been carried out at Xi'an Jiaotong University since 1982.
      
The matching with the structural mechanics of the wall is given by a simple local way.
      
Following the structural mechanics approach, the elastic modulus, Poisson's ratio, and the deformation behaviors of SWNTs were investigated as a function of the nanotube size and structure.
      
Tissues heal themselves and we understand little of the structural mechanics of the process.
      
更多          
  mechanics of structures
The development of structural engineering: Suggestions for further research in mechanics of structures
      
First Republic Conference on the Problems of the Mechanics of Structures Made from Compositional Materials (Kanev, May 21-23.
      
Scientific fundamentals and problems of manufacturing mechanics of structures made of composite materials
      
Technological problems of mechanics of structures made of composite materials
      
Mechanics of structures made of rubber and cord materials
      
更多          


The arch belly gravity dam is a new type of dam. Its upstream face is inclined and it has a belly arch within. The stress distribution of the dam section is comparatively uniform so that the strength of materials can be filly utilized; the vertical stress at the heel of the dam is comparative high so that the capability of the dam to sustain extraordinary overloading is high. .Comparing with ordinary gravity dam, its stress condition is greatly improved. In order to search for the best profile of new type...

The arch belly gravity dam is a new type of dam. Its upstream face is inclined and it has a belly arch within. The stress distribution of the dam section is comparatively uniform so that the strength of materials can be filly utilized; the vertical stress at the heel of the dam is comparative high so that the capability of the dam to sustain extraordinary overloading is high. .Comparing with ordinary gravity dam, its stress condition is greatly improved. In order to search for the best profile of new type of dam, stress experiments of more than twenty profiles of the dam section of different dimension have been performed by photoelastic frozen method. Through balance check of forces and repeated tests of recommened profiles, it has been proved that the results of the experimentals are believable. The stress condition of several profiles is also experimented with the net method of gelatin models. The stresses are also computed by structure theory with the profile assumed as a hingeless arch. The stresses obtained by the above three methods are approximate. Based upon the results of stress experiments, the effect of the change of dimension of the profile on the stress distribution has been studied. It is considered that the rule to determine the dimension is as follow: The slope of upstream face would be 1: 0. 2-1: 0. 4, and that of the downstream face 1:0. 75-1: 0. 9; the belly arch would be made elliptical with its major axis slightly inclined toward upstream; the arch would be -25--~35% as high as the dam; the upstream leg would be thicker than the downstream leg, so that the center of the gravity of the section would be slightly shifted to the upstream. If the arch belly are used as powerhouse of hydroelectric plant, the width of the draft tube would be equal to or less than 30% of the dam block. The results of stress experiments of the finally recommended profiles have shown that the stresses in the dam section are principal compressive, the stress distribution in the dam section is uniform, and the stress at the heel of the dam is higher. Take profile 1-Ⅷ as an example, compressive stresses occur in the whole section, except that at a few points tensile stresses of no more than 4 kr/cm2 are developed. The ratio of maxinum and mininum stresses in the section is less than 2. The vertical compressive stress at the heel of the dam is, greater than two times the head at the same point, so that the dam has greater capability to resist the overloading. It can be seen that the arch belly gravity dam is a noteworthy new type of dam

腹拱式重力坝是一种新坝型,坝上游面倾斜,坝内设有腹拱。坝体断面的应力分布比较均匀,坝体材料得到充分的利用,上游坝趾的垂直应力较高,坝体承受特殊超载的能力较大,比较一般砼重力坝的应力状态有了很大改善。为了寻找这种新坝型的最好轮廓剖面,利用偏光弹性力学的冻结应力方法,做了廿多组不同轮廓尺寸的坝体剖面的应力试验,经过平衡校核,对于推荐的剖面还进行了重复试验,认为试验结果是可信的。试验中个别方案还采用了软胶纲格法试验;并简化成无铰拱,用结构力学的方法进行了近似的应力计算。三种不同方法所得的应力情形是接近的。根据不同轮廓尺寸剖面应力试验的结果,分析了各种轮廓尺寸的变化对坝体应力分布的影响。初步认为确定坝体轮廓尺寸的规则如下:坝体上游边坡宜为:1∶0.2-1∶0.4,下游边坡宜为1∶0.75-1∶0.9;腹拱宜做成略向上游倾斜的椭圆形;拱高宜为坝高的25-35%;上游腿应比下游腿略厚,以使重心偏向上游;设置坝内电厂时尾水管的宽度宜等于或小于坝段宽的30%。最后推荐方案的应力试验成果,坝体基本上全部为压应力,坝体断面的应力分布均匀,上游坝趾的压应力较高。以1-Ⅷ号方案为例,坝内只个别点出现了最大为4公斤/厘米2...

腹拱式重力坝是一种新坝型,坝上游面倾斜,坝内设有腹拱。坝体断面的应力分布比较均匀,坝体材料得到充分的利用,上游坝趾的垂直应力较高,坝体承受特殊超载的能力较大,比较一般砼重力坝的应力状态有了很大改善。为了寻找这种新坝型的最好轮廓剖面,利用偏光弹性力学的冻结应力方法,做了廿多组不同轮廓尺寸的坝体剖面的应力试验,经过平衡校核,对于推荐的剖面还进行了重复试验,认为试验结果是可信的。试验中个别方案还采用了软胶纲格法试验;并简化成无铰拱,用结构力学的方法进行了近似的应力计算。三种不同方法所得的应力情形是接近的。根据不同轮廓尺寸剖面应力试验的结果,分析了各种轮廓尺寸的变化对坝体应力分布的影响。初步认为确定坝体轮廓尺寸的规则如下:坝体上游边坡宜为:1∶0.2-1∶0.4,下游边坡宜为1∶0.75-1∶0.9;腹拱宜做成略向上游倾斜的椭圆形;拱高宜为坝高的25-35%;上游腿应比下游腿略厚,以使重心偏向上游;设置坝内电厂时尾水管的宽度宜等于或小于坝段宽的30%。最后推荐方案的应力试验成果,坝体基本上全部为压应力,坝体断面的应力分布均匀,上游坝趾的压应力较高。以1-Ⅷ号方案为例,坝内只个别点出现了最大为4公斤/厘米2的拉应力,?

How to calculate the temperature stresses of the pressure pipe after the concrete rending is of importance to understand expansion of crevice and estimate danger degree. According to the actual measured temperature data and the data on the expanding processes of crevices, the authors deduced the calculation formulas and drew up the calculation lists on ground of the basic principles of structural mechanics and reinforced concrete structure. This is a simple and easy way to size up internal-force changes while...

How to calculate the temperature stresses of the pressure pipe after the concrete rending is of importance to understand expansion of crevice and estimate danger degree. According to the actual measured temperature data and the data on the expanding processes of crevices, the authors deduced the calculation formulas and drew up the calculation lists on ground of the basic principles of structural mechanics and reinforced concrete structure. This is a simple and easy way to size up internal-force changes while the pressure pipe concrete rended. The calculation method has been used to the analysis of crevice settlement in an inverted siphon.

压力管道混凝土开裂后内力变化、裂缝发展、管道危险度,是温度应力的研究课题,又是确定该类管道裂缝处理方案的前提,目前,这一问题国内外可供参阅的资料很少。本文根据实测温度资料和对裂缝发展过程的观察记录,从结构力学和钢筋混凝土结构的基本原理出发,推导了内力计算公式,制定了计算表格。这是一种较为简便地解决压力管道混凝土开裂后,内力如何变化问题的途径,有助于分析裂缝如何发展,管道危险度如何估计等问题。这一研究成果已及时地用于某倒虹工程裂缝处理方案的论证分析,使管道裂缝原因分析和处理方案得到较好的解决。

Based on the principle of structural mechanics, a formula which de- scribes the functional relationship between all mechanical elements in the arch dam, such as the force systems of arch crown and abutments, stre- sses, deformations, and the ratio between moduli of elasticity of rock foundation and dam body, is derived in this paper, The formula, being unrelated fo the shape of the arch axis, is applicable to any arch shape only if the essential hypotheses are satistied. By changing the modulus of rock base,...

Based on the principle of structural mechanics, a formula which de- scribes the functional relationship between all mechanical elements in the arch dam, such as the force systems of arch crown and abutments, stre- sses, deformations, and the ratio between moduli of elasticity of rock foundation and dam body, is derived in this paper, The formula, being unrelated fo the shape of the arch axis, is applicable to any arch shape only if the essential hypotheses are satistied. By changing the modulus of rock base, the effect on the stabilities of dam abutment, stresses and deformations for various types of arch dam are studied in this paper, and special discousion on the different shapes of arch rib is made in detail.

结构力学原理出发,推出了描述拱坝各力学要素,如拱冠力系、拱端力系,应力、变形与E_R/E_σ(E_R-地基弹性模量,E_σ-坝体弹性模量)的关系式。公式的推导不涉及拱轴线形状,因而适用于任意形式的拱圈,只要该拱圈满足公式推导的基本假设。本文研究了地基弹性模量的改变对各类拱圈形式的坝肩稳定、应力、变形的影响。并对各类拱圈形式做了专门的讨论。

 
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