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arch structures
相关语句
  拱型结构
     Vibration Control of Arch Structures
     拱型结构振动控制的探讨
短句来源
     ANALYSIS OF THE NONLINEAR OF THE TORSION FLEXURE COUPLING VIBRATION OF THE ARCH STRUCTURES WITH GAP
     有间隙拱型结构的扭弯耦合振动非线性分析
短句来源
     Under some particular conditions and requirements, corresponding measures are taken to demolish arch structures with prestressed concrete beams, especially the pedestrian overpass, as reference experience for similar works.
     介绍在特殊条件和要求下 ,拆除跨线人行天桥预应力混凝土梁式拱型结构构筑物工程所采取的技术措施 ,为类似工程提供经验。
短句来源
  拱结构
     SPLINE FINITE POINT METHOD FOR DOUBLE NONLINEAR STABILITY ANALYSIS OF ARCH STRUCTURES
     拱结构双重非线性稳定分析的样条有限点法
短句来源
     Construction Simulation and Construction Technology Study of Prestressed Cable Arch Structures
     预应力索拱结构施工仿真与施工技术研究
短句来源
     CONSTRUCTION TECHNOLOGY AND EXPERIMENTAL STUDY ON PRESTRESSED CABLE ARCH STRUCTURES
     预应力索拱结构施工技术与试验研究
短句来源
     Matrix Displacement Method for Concrete Filled Steel Tubular Arch Structures
     钢管混凝土拱结构计算的矩阵位移法
短句来源
     Experimental analysis of the elastic stability on prestressed flexible arch structures
     预应力柔性拱结构弹性整体稳定性试验研究
短句来源
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  强激励
     ANALYSIS OF NONLINEAR VIBRATION OF THE ARCHSTRUCTURES UNDER THE PARAMETRIC ANDFORCED EXCITING
     拱型结构在参、强激励下的非线性振动分析
短句来源
  “arch structures”译为未确定词的双语例句
     Natural vibration analysis of steel truss arch structures
     钢桁架拱结构固有振动分析
短句来源
     Finite Element Analysis of Masonry Arch Structures
     圬工拱形建筑结构的有限元分析
短句来源
     Analysis of the elastic-static behavior in the plane of prestressed flexible arch structures
     预应力柔性拱平面内弹性静力工作性能分析
短句来源
     Similarities in natural vibration of stiff cable structures and truss arch structures
     劲性索、桁架拱结构固有振动的相似性
短句来源
     Based on the availability of ANSYS finite element analysis by the experimental verification, the ANSYS program is used to analyse the elastic-static behavior in the plane of prestressed flexible arch structures, including the forming analysis, the behavior analysis under uniformly distributed load along a half span and wind load.
     在经试验验证了ANSYS有限元分析的可行性基础上,应用ANSYS程序开展了柔性拱的成形分析,在半跨均布荷载和风荷载作用下的弹性静力工作性能分析.
短句来源
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  arch structures
Design sensitivity for arch structures with respect to midsurface shape under static loading
      
The data are interpreted in terms of emission from hot static coronal loops rather similar to the magnetic arch structures found on the Sun.
      
From the growth of spots and arch structures we found that periods of slow flux emergence were followed by periods of vigorous flux emergence.
      
Evolution of an active region and associated Hα arch structures
      
We have studied mass motions associated with active region arch structures from observations of a developing active region near the center of the solar disk.
      
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This paper studies the influences of several factors on natural freqency of arch structures, such as: the external load, the shear deformation, the shape of arch axis, the superstructure of arch, the horizontal inertia forces, etc. Analyzing these problems numerically, the author takes advantage of the graphic-analytical method and the theory of matrix. The results obtained show that this method gives fine accuracy. All the results presented may be useful in practical designs.

本文研究了一些因素对拱式结构固有频率的影响,这些因素是外荷载,剪切变形,拱轴形状,拱上建筑以及水平惯性力等。本文用图解分析法和矩阵理论来求解。计算结果表明本法精度甚高。研究成果可供工程设计之用

This paper attempts to present a rational structure type of reinforcedconcrete railway arch bridges erected by the cantilever method.The proposed newtype of arch bridge is designed to strengthen particularly the superstructureof the rigid-frame that carrys the live load together with the main archribs.Such arch bridge structure is much advantageous not only to improvethe conditions of carrying capacity but also to facilitate the constructionby the cantilever method.As compared with...

This paper attempts to present a rational structure type of reinforcedconcrete railway arch bridges erected by the cantilever method.The proposed newtype of arch bridge is designed to strengthen particularly the superstructureof the rigid-frame that carrys the live load together with the main archribs.Such arch bridge structure is much advantageous not only to improvethe conditions of carrying capacity but also to facilitate the constructionby the cantilever method.As compared with an ordinary arch bridge of thesame span,the main arch ribs in this case will be subjected to a bendingmoment and an eccentricity of internal force less than 50%.As a resut,the size of arch section may be decreased,the arch structure may be suitablefor longer spans,the arch rib may be of segmental axis and constant sectionavailable for erection.Then the design,as a whole,will achieve a goodeconomical efficiency in construction.

本文介绍一种用悬臂法施工建造的铁路钢筋混凝土拱桥合理的结构型式,建议的新型拱桥设计中特别加强了拱上的刚架结构,它和主拱共同承受活载,这种拱桥结构不仅对改善受力条件而且对悬拼施工都很有利。和同样跨度的一般拱桥相比较,主拱承受的弯矩和内力的偏心距均将减少50%以上。因此,拱的截面尺寸可以减小,拱结构可以适用于较长跨度,拱肋可以做成便于拼装的圆弧形拱轴和等高截面,并且整个设计将取得施工上好的经济效益。

This paper investigates structure and mechanism of rock bolts installed around the periphery of roadways for forepoling. Field observations indicate that this method can consolidate broken rocks liable to collapse (the compressive strength of the rockmass less than 12×10~5Pa,shear strength less than 5×10~5Pa and impossible to take rock samples) can increase integrity and tensile strength of the rockmass. The paper analyzes the mechanism of rock bolts before blasting, in the process of blasting and after...

This paper investigates structure and mechanism of rock bolts installed around the periphery of roadways for forepoling. Field observations indicate that this method can consolidate broken rocks liable to collapse (the compressive strength of the rockmass less than 12×10~5Pa,shear strength less than 5×10~5Pa and impossible to take rock samples) can increase integrity and tensile strength of the rockmass. The paper analyzes the mechanism of rock bolts before blasting, in the process of blasting and after blasting under certain assumed conditions. A model consisting of strut, supports and composite arch structure is established, and formulae are put forward. The minimum bearing capacity of these three structures is calculated from safety point of view.

本文研究了超前围壁锚杆支护结构与作用机理。现场观测表明,在破碎易冒落岩层(井下实测岩体抗压强度约在12×10~5Pa,抗剪强度在5×10~5Pa以下,而且用一般方法不能取出岩石试样的岩层)中,超前围壁锚杆对破碎岩层起到固结岩石、增强整体性和提高岩体抗拉强度的作用。表文在一定的假设条件下,分析了巷道在爆破前、爆破中和爆破后不同时期超前围壁锚杆作用机理,提出了刹杆、护壁以及组合拱结构模型和相应的计算公式,并从安全角度计算了这三种结构的最小承载力。

 
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