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pitch roof
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     This example indicates that the largest stress of this roof is 68 2% smaller than that of the traditional four pitch roof of same dimensions. About 70% materical will be saved by use of the proposed roof than the traditional four pitch roof of same bottom, height and strength.
     算例表明这种结构的最大应力比相同尺寸的传统双向折板屋盖的最大应力小68.2%,运用这种结构,比同底同高等强度的传统双向折板节省将近70%的材料。
短句来源
     The degree of difficulty of top coal caving of roadway sub level caving mining in steep seam is synthetically influenced by many factors such as intensity of coal, mining depth, coal seam thickness, pitch, roof and floor, parting and miscellaneous mining condition.
     急倾斜煤层巷道放顶煤开采顶煤可放性受到煤层强度、开采深度、煤层厚度、倾角、顶底板条件、夹矸、其它开采条件等因素的综合影响 .
短句来源
  相似匹配句对
     STRESSES IN SIMPLY SUPPORTED FOUR PITCH SQUARE ROOF
     四边简支方形双向折板的内力
短句来源
     Analysis of Double-Pitch Reinforced Concrete Roof Beams
     钢筋混凝土双坡屋面梁的计算
短句来源
     Fiddler on the Roof
     《屋顶上的提琴手》:种族,世代,阶级与性别冲突的史诗
短句来源
     IMPREGNATING PITCH
     浸渍剂沥青
短句来源
     On the Design of Roof Garden
     试论屋顶花园的设计
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This paper presents a new type of structure - cable-stayedloublc-pitch roof with curved reticulated shell structure used as he roof of the gymnasium in National Olympic Sports Center.This new large span structure is a combination of the Chinese raditional architectural style and the contemporary structural echnique. In this paper, the design, calculation method as well as he constructional details of this structure are described.

本工程屋盖结构采用了一种新型的空间结构——斜拉双坡形曲面网壳结构,本文上要介绍这种结构的设计、计算、一些生要构造措施以及施工方法等。这种屋盖结构,形式新颖、技术先进,不仅满足了大跨度建筑结构的功能要求,又富有中国式建筑风格。

In this paper, the equation of the curved surface of a simply supported cross V shaped folded plate roof is established by means of the local coordinate system and generalized functions——sign function and step function. Then, expressions of the deflection and internal forces of the roof are derived from the elastic shell theory and variational method. Finally, an illustrative example of this roof is presented. This example indicates that the largest stress of this roof is 68 2% smaller than that of the traditional...

In this paper, the equation of the curved surface of a simply supported cross V shaped folded plate roof is established by means of the local coordinate system and generalized functions——sign function and step function. Then, expressions of the deflection and internal forces of the roof are derived from the elastic shell theory and variational method. Finally, an illustrative example of this roof is presented. This example indicates that the largest stress of this roof is 68 2% smaller than that of the traditional four pitch roof of same dimensions. About 70% materical will be saved by use of the proposed roof than the traditional four pitch roof of same bottom, height and strength.

本文首先借助局部斜坐标系和广义函数——符号函数和阶跃函数,建立了交叉V形折板屋盖的曲面方程,然后应用薄壳理论和变分法,导出了四边简支交叉V形折板屋盖的挠度和内力的表达式,最后给出算例。算例表明这种结构的最大应力比相同尺寸的传统双向折板屋盖的最大应力小68.2%,运用这种结构,比同底同高等强度的传统双向折板节省将近70%的材料。

The equation of the middle surface of a simply supported hip truncated combined parabolical cylinder roof is established by means of the local inclined coordinate system and step function.Then,the formulas of the internal forces and deflection of the simply supported hip truncated combined parabolical cylinder roof are derived from the theory of shells and variational method.Finally,an illustrative example of this roof is presented.This example indicates that the stress and deflection of this roof are much less...

The equation of the middle surface of a simply supported hip truncated combined parabolical cylinder roof is established by means of the local inclined coordinate system and step function.Then,the formulas of the internal forces and deflection of the simply supported hip truncated combined parabolical cylinder roof are derived from the theory of shells and variational method.Finally,an illustrative example of this roof is presented.This example indicates that the stress and deflection of this roof are much less than those of the hip truncated four pitch roof of the same dimensions while its rigidity is much larger,so materials will be saved by use of sucha proposed roof.

借助阶跃函数和斜坐标系,建立了平顶组合抛物面薄壳屋盖的壳面方程,然后应用弹性薄壳理论和变分法,导出了四边简支平顶组合抛物面薄壳屋盖的挠度和内力的表达式,最后给出算例。算例表明这种结构比相同尺寸的平顶四坡折板屋盖的内力和挠度小很多,而其刚度较大,因此采用这种结构能节省材料。

 
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