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Structural silicone joint behaviour study for cold bent glass
https://orcid.org/http://orcid.org/0000-0003-4712-568X
Cold-bent or warped glass units in façades has gained in popularity as architecture in commercial buildings is showing a trend to innovative, non-rectangular “organic” shapes. Structural silicone glazing has been used successfully as the sole method of retention of the bending membrane. Recent research by the authors investigated experimentally the durability of different cold bent glass designs by coupling the loading level to the rate of deformation over time and recommend for single corner warped glass tolerable peak strains to reach a good durability. The goal of the current paper is to propose adapted evaluation methods from the early design stage to the final concept. The first part of the paper is a thorough investigation of the difficulties observed when applying FEA to the evaluation of structurally glazed cold bent glass. Building further on the recently done investigation, the effect of the mesh size, the choice of constraints, the type of bending (single corner or other) and the design of the frame or interlayer are discussed. Additionally, an additional failure criteria was evaluated to the maximum principal strain to verify whether they can predict failure as observed experimentally. The second part of the paper derives an alternative simplified analytical calculation method to assess the potential of different concepts in the early design stages for twisted glass. The effect of the interlayer is addressed as well as the effect of the IGU compound. The accuracy of the analytical results are compared to FEA models.
Structural silicone joint behaviour study for cold bent glass
https://orcid.org/http://orcid.org/0000-0003-4712-568X
Cold-bent or warped glass units in façades has gained in popularity as architecture in commercial buildings is showing a trend to innovative, non-rectangular “organic” shapes. Structural silicone glazing has been used successfully as the sole method of retention of the bending membrane. Recent research by the authors investigated experimentally the durability of different cold bent glass designs by coupling the loading level to the rate of deformation over time and recommend for single corner warped glass tolerable peak strains to reach a good durability. The goal of the current paper is to propose adapted evaluation methods from the early design stage to the final concept. The first part of the paper is a thorough investigation of the difficulties observed when applying FEA to the evaluation of structurally glazed cold bent glass. Building further on the recently done investigation, the effect of the mesh size, the choice of constraints, the type of bending (single corner or other) and the design of the frame or interlayer are discussed. Additionally, an additional failure criteria was evaluated to the maximum principal strain to verify whether they can predict failure as observed experimentally. The second part of the paper derives an alternative simplified analytical calculation method to assess the potential of different concepts in the early design stages for twisted glass. The effect of the interlayer is addressed as well as the effect of the IGU compound. The accuracy of the analytical results are compared to FEA models.
Structural silicone joint behaviour study for cold bent glass
https://orcid.org/http://orcid.org/0000-0003-4712-568X
Cold-bent or warped glass units in façades has gained in popularity as architecture in commercial buildings is showing a trend to innovative, non-rectangular “organic” shapes. Structural silicone glazing has been used successfully as the sole method of retention of the bending membrane. Recent research by the authors investigated experimentally the durability of different cold bent glass designs by coupling the loading level to the rate of deformation over time and recommend for single corner warped glass tolerable peak strains to reach a good durability. The goal of the current paper is to propose adapted evaluation methods from the early design stage to the final concept. The first part of the paper is a thorough investigation of the difficulties observed when applying FEA to the evaluation of structurally glazed cold bent glass. Building further on the recently done investigation, the effect of the mesh size, the choice of constraints, the type of bending (single corner or other) and the design of the frame or interlayer are discussed. Additionally, an additional failure criteria was evaluated to the maximum principal strain to verify whether they can predict failure as observed experimentally. The second part of the paper derives an alternative simplified analytical calculation method to assess the potential of different concepts in the early design stages for twisted glass. The effect of the interlayer is addressed as well as the effect of the IGU compound. The accuracy of the analytical results are compared to FEA models.
Structural silicone joint behaviour study for cold bent glass
Glass Struct Eng
Sitte, Sigurd (author) / Hayez, Valérie (author) / Kimberlain, Jon (author) / Mirgon, Mark (author) / Feng, Jie (author)
Glass Structures & Engineering ; 6 ; 39-63
2021-03-01
25 pages
Article (Journal)
Electronic Resource
English
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