Experimental study of wind impact on multilevel industrial scaffolding

Lyudmila Frishter,Maxim Lukin,S Kudriavtcev,V Murgul

doi:10.1051/e3sconf/202015706009

Lyudmila Frishter, Maxim Lukin + Show 2 more

Open Access

https://doi.org/10.1051/e3sconf/202015706009

Copy DOI

Abstract

In the article, the local stress-strain state of structures and constructions is investigated, various variants for the design of the boundary are taken into account: special lines, points. The acting forced deformations don’t satisfy the compatibility conditions. They have a finite discontinuity along the contact line (surface) of the domains, including the irregular point of the boundary, causing stresses. The subject of article is stress concentrators the singularity of the stress-strain state of structures and constructions exhibiting “constructive heterogeneity” and discontinuous forced deformations determined on polymer models of photoelasticity and defrosting of deformations. A complex theoretical-numerical-experimental approach, for obtaining and analyzing the stress state in the neighborhood of the irregular point of the plane domain boundary, is proposed to extrapolate reliable experimental data to a domain where the fringe contour is not readable.

Highlights

The aerodynamic aspects of the framework type structures are important in the design of buildings, calculation of air flows inside the building, evaluation of a building’s influence on the air flow mode of the neighborhood, optimum selection of enclosures [1,2,3,4,5,6,7,8,9]
The dummy structure is fixed in the wind tunnel part with flat and steady air flow
The experimental studies of the air flow impact on the structure are conducted in the flow section where the flat and steady stream is reduced to a mono-dimensional vortex-free stationary flow, thereby, for the specific air flow velocity V 12 m s, auto-modeling by Reynolds number still applies

Summary

Introduction

The aerodynamic aspects of the framework type structures are important in the design of buildings, calculation of air flows inside the building, evaluation of a building’s influence on the air flow mode of the neighborhood, optimum selection of enclosures [1,2,3,4,5,6,7,8,9]. The calculation of the wind impact influence during the design of framework-type structures is guided by codes having much in common [10]. During the design of such structures, the codes prescribe dummy testing in architectural and civil wind tunnels [10,11,12,13,14,15,16]

Methods

Results

Discussion

Conclusion