钢筋混凝土带肋板自应力复盖板结构非线性计算

IF 0.6 Q4 ENGINEERING, CIVIL Slovak Journal of Civil Engineering Pub Date : 2023-09-01 DOI:10.2478/sjce-2023-0016
Anton Hasenko, Volodymyr Semko, Serhii Skliarenko
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引用次数: 0

摘要

摘要钢筋混凝土预制结构在相当高的水平上满足了工业化、高可制造性和高性价比的要求。结构中的肋部起承重作用,而板部起封闭作用。通常在建筑工地安装这种结构之前,它们是由组装元件安装的。元件的整体尺寸受到运输要求的限制。在这种聚合安装过程中,装配单元根据不同于操作方案的计算方案工作。本文研究了带肋钢筋混凝土板在运输、安装、安装和组合空间覆盖板运行过程中的结构非线性。确定了这些影响,并制定了将单个预制单元连接到空间结构中的节点的合理设计。在这些节点的帮助下,可以产生卸载支撑力矩,这将减少设计截面的内力。研究了钢筋混凝土板架宽度变化对墙体和屋面承重肋内力的影响。
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Calculation of the Constructive Nonlinearity of Ribbed Reinforced Concrete Slabs of Self-Stressed Covering Panels
Abstract Precast reinforced concrete constructions meet the requirements of industrialization, high manufacturability, and cost-effectiveness at a reasonably high level. The ribs in constructions perform load-bearing functions, and the slab part performs enclosing functions. Often before the installation of such structures at a construction site, they are mounted from assembly elements. The overall dimensions of the elements are limited by transportation requirements. During such an aggregated mounting, the assembly units work according to a calculation scheme that differs from an operational scheme. The structural nonlinearity of ribbed reinforced concrete slabs during transportation, mounting, and installation, and the operation of a combined spatial covering panel were investigated in this paper. The effects were identified, and a rational design of nodes connecting the individual prefabricated units into a spatial structure was developed. With the help of these nodes, it is possible to create unloading support moments, which will reduce the internal forces in the design cross-sections. The effects of changes in the width of the reinforced concrete slab shelves on the internal forces of the load-bearing ribs of a wall and a roof panel were investigated.
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审稿时长
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