Design of new scaffold anchor based on the updated finite element model

Ilcik, Jiri; Arora, Vikas; Dolejš, Jakub

doi:10.1016/j.engstruct.2016.03.064

Cited by 8 publications

(2 citation statements)

References 13 publications

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“…Due to a high risk of failures and incidents, its design and assembly should be carefully prepared, which is why unusual scaffolding, i.e., high or with complex geometry, needs specific design solutions [1][2][3] focused on the points of support and anchoring, which have a direct impact on the level of stress of individual scaffolding elements and the risk of scaffolding disaster. Analyses regarding the impact of the anchoring distribution and the nature of conducted work can be found in [4]. Forces in anchors are strictly dependent on the geometry [5] and height of the scaffolding, objects occurring in its immediate vicinity [6], as well as on safety nets and claddings [7] attached to the scaffolding, because the main impact on the forces in anchors is caused by the wind [8].…”

Section: Introductionmentioning

confidence: 99%

Influence of Foundation Quality on the Stress in the Elements of Steel Façade Scaffolding

2020

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The purpose of this paper is to show the influence of incorrect scaffolding foundations on the stress in their elements. Static stress analysis was performed for exemplary steel façade scaffolding. The scaffolding was formed using the Plettac 70 system and was composed of 16 modules and 13 working levels. The total dimensions of the scaffolding were 45.0 × 26.36 × 0.74 m. The scaffolding was set up partly on concrete and partly on a created ground classified as coarse sand with discontinuous graining. The boundary conditions modelling the foundation considered the heterogeneity of the ground both along the scaffolding and in the direction perpendicular to the façade. The effect of uneven subsidence on the scaffolding frames was checked, adopting a constant stiffness of 3500 kN/m in half of the supports, while in the rest of them the stiffness varied from 35 to 3500 kN/m. Due to additional bending moments, normal stresses in stands and transoms of the frames increased. Incorrect scaffolding foundation has the greatest negative effect on normal forces in anchors and bracings. Because these elements are responsible for the stability of the scaffolding, their damage may result in scaffolding failure and would certainly lead to a reduction of the values of free vibration frequencies, thus resulting in the discomfort of the workers on the scaffolding and a lack of safety.

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Section: Introductionmentioning

confidence: 99%

Influence of Foundation Quality on the Stress in the Elements of Steel Façade Scaffolding

2020

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“…An important tool for mathematical modeling is particularly the Finite Element Method -FEM, whose principle is to discrete continuum to certain (finite) number of elements and the determination of calculated parameters in individual nodes. Numerical modeling finds its application in all sorts of areas of engineering and many high-quality papers and studies have already been published in this area of the research [10][11][12][13][14]. The results of numerical modeling have usually limited use without the experimental verification or without the load test [15,16].…”

Section: Introductionmentioning

confidence: 99%