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首页> 外文期刊>Journal of Architectural Engineering Technology >Design and Project of Masonry Vaults by Software based in Geometry Methods
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Design and Project of Masonry Vaults by Software based in Geometry Methods

机译：基于几何方法的软件砌体库设计与工程

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This paper reports on an investigation on vaulted ceilings aimed at seeking connections between the geometry of such architectonic elements and their structural behaviour. A search for the balance of forces acting through such elements is put forward, upholding on the Limit Analysis Theory. Graphically, the element's security limits are evaluated according to the forces’ trajectory distance through the vault or dome shapes. A simulation of the application of this graphical method on three equally dimensioned square-based types of vaults is presented (namely barrel, groin and dominical vaults).The groin vault is the lightest (1.514 N/m2) and that with the lowest Concavity Factor (1.14), while the dominical vault stands as the heaviest (2.244 N/m2) and shows the highest Concavity Factor (2.07). On another note, the barrel type is only supported by its sides (4.610 N horizontal thrust applied on each one), the groin vault on its four corners (horizontal thrust 3.102 N, diagonally directed) and the dominical type on its four sides (1.524 N horizontal thrust on each).Despite stress values on the three vault types are low, a couple of points ought to be accounted for. The maximum stress on the groin vault is 0.03 N/mm2 with a significant increase up to 0.34 N/mm2 as the edges are approached. The maximum radial stress –transmitted to the supporting elements- on the dominical vault is 0.03 N/mm2, although a parallel-to-the-supports ring stress appears (whose intensity depends on proximity to vertical position as related to the supports) ranging up to 0.17 N/mm2, quite higher than the radial stress. Maximum work stress is not the defining value in order to guarantee stability for this element.
机译：本文报道了对拱形天花板的一项调查，旨在寻找此类建筑元素的几何形状与其结构性能之间的联系。坚持极限分析理论，提出了寻求通过这些因素起作用的力平衡的方法。以图形方式，根据部队通过穹顶或穹顶形状的轨迹距离来评估元素的安全极限。提出了该图形方法在三种等尺寸正方形正方形拱顶（即桶状，腹股沟和主拱顶拱顶）上的应用模拟，其中腹股沟拱顶最轻（1.514 N / m2），而凹面系数最低（1.14），而主拱顶最重（2.244 N / m2），并且凹度系数最高（2.07）。另一个要注意的是，发条盒型式仅由其侧面（每个方向上施加的水平推力为4.610 N），其四个角上的腹股沟拱顶（水平推力为3.102 N，对角线）和其主力型（四个方向）来支撑。每种情况下N个水平推力）。尽管三种穹顶类型的应力值都很低，但应考虑几个要点。腹股沟拱顶的最大应力为0.03 N / mm2，随着接近边缘，应力显着增加至0.34 N / mm2。尽管会出现平行于支撑环的应力（其强度取决于与支撑相关的垂直位置的接近），但在主穹顶上传递到支撑元件的最大径向应力为0.03 N / mm2。达到0.17 N / mm2，远高于径向应力。为了保证该元件的稳定性，最大​​工作压力不是定义值。

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