Abramczyk Jacek, Chrzanowska Katarzyna
Department of Architectural Design and Engineering Graphics, Rzeszow University of Technology, Al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland.
Doctoral School of the Rzeszow University of Technology, Rzeszow University of Technology, Al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland.
Materials (Basel). 2024 Dec 27;18(1):67. doi: 10.3390/ma18010067.
This article presents a new parametric method for shaping flat transverse frame structural systems supporting thin-walled roofs made of flat sheets folded unidirectionally and transformed elastically to various shell forms. The parameterization was limited to one independent variable, that is the stiffness of the support joints. For different discrete values of simulated stiffness, the surface areas of the cross sections of the tensile and compressed elements and the section modulus of the bending elements were calculated so as to obtain the optimized work of the frame and its elements in the assumed load environment. The developed method allows for optimizing the work of frames considered as flat bar structural systems of building halls, taking into account the ultimate and serviceability limit states. The operation of the method is illustrated with an example concerning the formation of a flat frame working under a load characteristic for buildings located in a lowland area in a moderate climate. The authors intend to successively extend the method with new types of frame systems so as to obtain increasingly accurate and universal models defined by means of an increasing number of independent variables. These parameters are related to different forms and inclinations of columns and girders, and different external load types. The successive increase in the parameters defining the computational parametric model of the frame requires the use of increasingly advanced artificial intelligence algorithms to describe the static and strength performance of the buildings shaped, which makes the proposed method universal and the created structural systems effective in various external environments.
本文提出了一种新的参数化方法，用于塑造支撑薄壁屋顶的平面横向框架结构系统，该薄壁屋顶由单向折叠的平板制成，并弹性转变为各种壳体形式。参数化仅限于一个自变量，即支撑节点的刚度。对于模拟刚度的不同离散值，计算拉伸和压缩元件横截面的表面积以及弯曲元件的截面模量，以便在假定的荷载环境中获得框架及其元件的优化工作性能。所开发的方法允许在考虑极限和正常使用极限状态的情况下，对被视为建筑大厅平面杆结构系统的框架工作性能进行优化。通过一个关于在温和气候下低地地区建筑物荷载特性作用下的平面框架形成的例子来说明该方法的操作。作者打算用新型框架系统相继扩展该方法，以便获得由越来越多自变量定义的越来越精确和通用的模型。这些参数与柱和梁的不同形式和倾斜度以及不同的外部荷载类型有关。定义框架计算参数模型的参数的相继增加需要使用越来越先进的人工智能算法来描述所塑造建筑物的静力和强度性能，这使得所提出的方法具有通用性，并且所创建的结构系统在各种外部环境中都有效。
