Abstract
Abstract The article presents an example of a structural solution of a mesh facade installed on a public building. The types of loads that can affect the structure of such a mesh have been characterized. The course of the wire shaping process used to produce the described mesh was reported. A finite element method (FEM) model was developed to simulate mechanical phenomena occurring during the technological process of crimping stainless-steel wire. Material model parameters have been defined. The developed model was verified in production conditions. Relations between wire-forming loads and tensile limit loads, as well as the distribution of equivalent tensile stress forced by the crimping process and internal stresses after crimping, were determined. The description of the technological process was presented in a form of a graph. The work contains the results of strength tests of wire materials and shaping tools.
Highlights
Steel wire is one of the basic metallurgical semi-finished products
In construction, which is another area of steel wire application, it is used to fabricate reinforced concrete elements [4], gabion meshes [5], rock curtains, as well as mesh facades introduced to the market a few years ago
Elements made of wire, which in addition to tensile loads are subjected to torsional loads, include, among others, coil springs, transport ropes, braided power line cables, and gabion mesh
Summary
Steel wire is one of the basic metallurgical semi-finished products. By default, it is used to manufacture machine parts such as coil springs [1], transport ropes [2], conveyor belts, sieves, and power line cables [3]. Elements made of wire, which in addition to tensile loads are subjected to torsional loads, include, among others, coil springs, transport ropes, braided power line cables, and gabion mesh These elements are obtained from the plastic shaping process. These data make it possible to determine the aerodynamic drag forces acting on the mesh structure depending on the building location conditions Knowledge of these interactions is useful when performing strength analyzes and selecting grid shapes and dimensions. An extreme case of strength analysis of the support structure of building facades is described in a work [10], where pyrotechnic effects were taken into account Another case of research indirectly related to mesh facades is the assessment of the impact of vines adjacent to facade grids on the functioning of passive energy-saving systems in buildings, as presented in a study [11]. Other factors may occur that cause loads on the mesh facades, such as icing of the structure, where the weight of the ice mesh adjacent to the wires can cause a significant increase in structural effort and, dangerous damage
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