scholarly journals Development of the universal tool for testing of tensile properties of hexagonal steel wire mesh for civil engineering

10.30544/365 ◽  
2018 ◽  
Vol 24 (2) ◽  
pp. 113-122
Author(s):  
Ivana Atanasovska ◽  
Dejan Momčilović ◽  
Milorad Gavrilovski
Keyword(s):  
Tensile Properties ◽  
Civil Engineering ◽  
Steel Wire ◽  
Strength Properties ◽  
Wire Mesh ◽  
Repeated Testing ◽  
Element Analysis ◽  
Safety Testing ◽  
Steel Wire Mesh ◽  
Wire Meshes

The developing of the universal tool for testing of tensile properties of hexagonal steel wire mesh for civil engineering is described in this paper. The developed tool allows repeated testing of hexagonal steel wire mesh of different dimensions without tool changes and is generally related with the procedure for the determination of tensile strength properties of different wire meshes. The construction of the tool which is related to the aims of the decreased mass consumption and high operation safety is described in detail. Particular attention is focused on the safety component of the tool which ensuring safety testing by preventing slipping of the wire mesh samples during loading. The paper also presents the Finite Element Analysis performed in order to verify the high safety factor of the developed tool. The contact regions with stress concentration behavior are analyzed by non-linear solvers. The obtained results and conclusion about the possible contributions of the developed universal tool for extensively testing of wire meshes for civil engineering are discussed.

scholarly journals Discrete element analysis of the punching behaviour of a secured drapery system: from laboratory characterization to idealized in situ conditions

2021 ◽  
Author(s):  
Antonio Pol ◽  
Fabio Gabrieli ◽  
Lorenzo Brezzi
Keyword(s):  
Mechanical Response ◽  
Steel Wire ◽  
Discrete Element ◽  
Wire Mesh ◽  
Steel Plates ◽  
Loading Conditions ◽  
Element Analysis ◽  
In Situ Conditions ◽  
Wire Meshes

AbstractIn this work, the mechanical response of a steel wire mesh panel against a punching load is studied starting from laboratory test conditions and extending the results to field applications. Wire meshes anchored with bolts and steel plates are extensively used in rockfall protection and slope stabilization. Their performances are evaluated through laboratory tests, but the mechanical constraints, the geometry and the loading conditions may strongly differ from the in situ conditions leading to incorrect estimations of the strength of the mesh. In this work, the discrete element method is used to simulate a wire mesh. After validation of the numerical mesh model against experimental data, the punching behaviour of an anchored mesh panel is investigated in order to obtain a more realistic characterization of the mesh mechanical response in field conditions. The dimension of the punching element, its position, the anchor plate size and the anchor spacing are varied, providing analytical relationships able to predict the panel response in different loading conditions. Furthermore, the mesh panel aspect ratio is analysed showing the existence of an optimal value. The results of this study can provide useful information to practitioners for designing secured drapery systems, as well as for the assessment of their safety conditions.

Reinforced Jacketing of Wall Panels: A Comparative Experimental Investigation

2019 ◽  
Vol 817 ◽  
pp. 536-543
Author(s):  
Romina Sisti ◽  
Antonio Borri ◽  
Marco Corradi ◽  
Allen Dudine
Keyword(s):  
Steel Wire ◽  
Wire Mesh ◽  
Fiber Reinforced Polymers ◽  
Welded Steel ◽  
Lateral Capacity ◽  
Glass Fiber Reinforced ◽  
Wall Panels ◽  
Comparative Experimental Investigation ◽  
Steel Wire Mesh ◽  
Wire Meshes

This paper presents the results of a laboratory investigation carried out on reinforced mortar plates. Reinforced mortar plates are often applied for shear reinforcement of wall panels. Different reinforcement materials have been embedded into the mortar plates: GFRP (Glass Fiber Reinforced Polymers) grids, fiberglass fabrics and welded steel-wire meshes. This is the first stage in the development of a new type of GFRP-reinforced mortar jacketing, that will provide a solution to enhance the lateral capacity of historic buildings. Such reinforced plates can also be used in applications on new masonry constructions where buildings with damaged or cracked wall panels need to be repaired or retrofitted. The mortar plates were built from commercially available GFRP grids and fabrics that were embedded into the mortar to form a reinforced-mortar square structure of 1 m with a thickness of 30 mm. The plates were tested in the laboratory, under quasi-static patch loads that exceeded the expected seismic loads. The goal of the testing program was to assess the design and construction techniques used, with a view to designing the reinforcement of a historic building. The laboratory tests demonstrated that the GFRP-reinforced plates had sufficient stiffness and strength to function effectively. By comparing the results with the more traditional steel-wire mesh reinforcement, it was also possible to perform a comparative analysis.

Finite Element Analysis of Shear Behavior of Reinforced Concrete Beam Strengthened by High-Strength Steel Wire Mesh

2013 ◽  
Vol 482 ◽  
pp. 15-19
Author(s):  
Chen Xing Yang ◽  
Zheng Liu ◽  
Li Ping Sun ◽  
Jiong Li
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Shear Strength ◽  
High Strength Steel ◽  
Steel Wire ◽  
High Strength ◽  
Wire Mesh ◽  
Element Analysis ◽  
Strength And Stiffness ◽  
Steel Wire Mesh

Based on the experimental study of shear strengthened of reinforced concrete rectangular beam strengthened by high-strength steel wire mesh and polymer mortar , the finite element extended analysis was used. The finite element analysis software showed that with the increasing of the strand dosage and reinforcement strand length,the shear strength and stiffness of strengthened members improved . However,with the increasing of shear span ratio , the shear strength and stiffness reduced obviously .

Feasibility of using self-compacting concrete in civil engineering applications

2017 ◽  
Vol 8 (3) ◽  
pp. 70
Author(s):  
Zeinab A. Etman ◽  
Mounir M. Kamal ◽  
Mohamed R. Afify ◽  
Tamer I. Ahmaed
Keyword(s):  
Cross Section ◽  
Civil Engineering ◽  
Steel Wire ◽  
Element Model ◽  
Concrete Cover ◽  
Wire Mesh ◽  
Self Compacting Concrete ◽  
Engineering Applications ◽  
Line Load ◽  
Wire Meshes

This research aimed to investigate the feasibility of using self-compacting concrete in civil engineering applications as a producing a precast hollow unit. The behavior of the hollow sections cast with self-compacted concrete beneath line-load was evaluated. An experimental work was carried out and a finite element model with ANSYS (version 15) was adopted. A total of fourteen hollow beams were cast and tested. The most variables taken into thought were; the types of reinforcement (reinforced steel bar and steel wire meshes), the types of steel wire meshes (expanded and welded steel wire mesh), number of layers of steel meshes (one layer and two layers), cross section thickness of concrete (40 mm and 60mm), concrete cover thickness (15mm and 20 mm) and also the shapes of cross section (square or circular). Special attention to initial cracking load, ultimate load, deflection, cracking pattern, energy absorption and ductility index were investigated. Good agreement was found compared with the experimental results. Out of this research; this paper presents applications of self-compacted concrete for casting skinny structural hollow members. These members can be used as precast units within the construction of the tunnel to decrease the problems in highway roads due to the difficulty of using crossing bridges particularly for kids and old people which are very useful for developing countries with great economic advantages.

Production of Wire Mesh Reinforced Aluminium Composites through Explosive Compaction

2018 ◽  
Vol 910 ◽  
pp. 41-45 ◽  
Author(s):  
Krishnamorthy Raghukandan ◽  
Somasundaram Saravanan
Keyword(s):  
Stainless Steel ◽  
Steel Wire ◽  
Wire Mesh ◽  
Stainless Steel Wire ◽  
Explosive Compaction ◽  
Aluminum Composite ◽  
Aluminum Sheets ◽  
Stainless Steel Wire Mesh ◽  
Steel Wire Mesh ◽  
Wire Meshes

In this study, aluminum based composites with stainless steel wire-mesh as reinforcement is fabricated by explosive compaction technique. Stacks containing four layers of alternatively positioned aluminum sheets and stainless steel wire-meshes are explosively compacted at varied explosive masses and the results are reported. Microstructure of explosive compacted aluminum composite reveal a smooth interface at lower explosive mass, while formation of reacted products are observed at higher energetic conditions. Though the hardness of the post clad composite is higher than pre-clad materials, the maximum hardness is observed at the first interface.

Ice-shedding and aerodynamic investigations of bridge cables with steel wire meshes

2021 ◽  
Author(s):  
Lubomir Matejicka ◽  
Christos T. Georgakis ◽  
Holger H. Koss ◽  
Philipp Egger
Keyword(s):  
Steel Wire ◽  
Cold Climate ◽  
Wire Mesh ◽  
Atmospheric Conditions ◽  
The Past ◽  
Substantial Risk ◽  
Ice Shedding ◽  
Steel Wire Mesh ◽  
Existing Bridges ◽  
Wire Meshes

<p>Numerous cable-supported bridges in cold climate regions are prone to seasonal ice or snow shedding, primarily from the bridge cables. Specific atmospheric conditions are required to trigger this phenomenon, which often results in dangerously sized pieces of ice or snow falling off the cables on the bridge deck below. Ice or snow shedding events that have led to bridge closures and insurance claims have been increasingly reported throughout the world in the past two decades. In this paper, a recently developed passive solution in the form of a steel wire mesh, which can be effectively used on new as well as on existing bridges, is introduced. Despite having a higher drag coefficient than the conventional helically filleted cable surface, the wire mesh is capable of retaining the ice on the surface of the cable for an extended time. This leads to prolonged ice melting and fragmentation of the ice before or during shedding, thus achieving a substantial risk reduction.</p>

scholarly journals The new tool insert design for prevention the rotation of horizontal wire during shear testing of welded fabric

10.30544/425 ◽  
2019 ◽  
Vol 25 (2) ◽  
pp. 163-170
Author(s):  
Ivana Atanasovska ◽  
Dejan Momčilović ◽  
Ognjen Ristić
Keyword(s):  
Shear Strength ◽  
Civil Engineering ◽  
Strength Properties ◽  
Test Methods ◽  
Repeated Testing ◽  
Element Analysis ◽  
Tool Insert ◽  
Steel Metallurgy ◽  
Accuracy Of Results ◽  
The Impact

Many new requirements in the field of experimental mechanics, like testing of metallic materials, emphasize traceability and accuracy of test results as the end goal. These requirements have energy efficiency context too, due to the increase of mass productions of many finished and semi-finished products based on steel metallurgy. Combined, both of the above-noted perspectives impose the need for improvements of some of the existing test methods. This paper describes one such improvement, the developing of the new insert tool for testing of shear strength of the welded fabric, for civil engineering. The developed tool allows repeated testing of welded joints sampled from the welded fabric of different dimensions without tool changes and is generally related with the procedure for the determination of shear strength properties of different sizes of wires used for welded fabric. The construction of the tool insert allows aiming high operation safety and higher accuracy of results, which is described in detail. The paper also presents experimental results and the Finite Element Analysis performed in order to verify the impact of insert tool application on the testing results. The obtained results and conclusion about the possible contributions of the developed insert tool for extensively testing of welded fabric for civil engineering are discussed.

Finite Element Analysis on the Deformation of Energy-Saving Wire-Mesh Frame Wallboard

2014 ◽  
Vol 501-504 ◽  
pp. 731-735
Author(s):  
Li Zhang ◽  
Kang Li
Keyword(s):  
Finite Element ◽  
Energy Saving ◽  
Theoretical Basis ◽  
Steel Wire ◽  
Wire Mesh ◽  
Design Parameters ◽  
Element Analysis ◽  
Finite Element Program ◽  
Element Program ◽  
Influence Degree

This paper analyzes the influence degree of related design parameters of wire-mesh frame wallboard on deformation through finite element program, providing theoretical basis for the design and test of steel wire rack energy-saving wallboard.

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