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Simulating structural silicone glazing joint deformation with spring models

Simulating structural silicone glazing joint deformation with spring models Solving solid mechanic equations using finite element analysis is an attractive yet time consuming technique when applied to a facade system. In addition, the interpretation of computational results is complex and not fully standardized for dimensioning silicone joints of Structurally Glazed facades. For this reason, the facade industry proposes to use a spring model to calculate the deformation of structural joints. This paper explains the differences between solid mechanics equations and a spring approach and demonstrates that using a spring axial stiffness equal to a joint rigidity modulus, a quantity that depends on the ratio of joint bite to joint thickness, a spring model predicts similar deformations than calculated by FEA. The impact of the number of springs distributed along joint bite on the accuracy of joint deformation is studied, at least two springs being necessary to model a joint inhomogeneous stress profile and its impact in limiting the deflection of the glass pane. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Glass Structures & Engineering Springer Journals

Simulating structural silicone glazing joint deformation with spring models

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Publisher
Springer Journals
Copyright
Copyright © Springer Nature Switzerland AG 2019
Subject
Engineering; Building Construction and Design; Structural Materials; Building Materials
ISSN
2363-5142
eISSN
2363-5150
DOI
10.1007/s40940-019-00105-6
Publisher site
See Article on Publisher Site

Abstract

Solving solid mechanic equations using finite element analysis is an attractive yet time consuming technique when applied to a facade system. In addition, the interpretation of computational results is complex and not fully standardized for dimensioning silicone joints of Structurally Glazed facades. For this reason, the facade industry proposes to use a spring model to calculate the deformation of structural joints. This paper explains the differences between solid mechanics equations and a spring approach and demonstrates that using a spring axial stiffness equal to a joint rigidity modulus, a quantity that depends on the ratio of joint bite to joint thickness, a spring model predicts similar deformations than calculated by FEA. The impact of the number of springs distributed along joint bite on the accuracy of joint deformation is studied, at least two springs being necessary to model a joint inhomogeneous stress profile and its impact in limiting the deflection of the glass pane.

Journal

Glass Structures & Engineering – Springer Journals

Published: Jul 25, 2020

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