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Experimental and numerical study on load-bearing performance in triple-glazed insulating glass units
Abstract Precise and rapid calculation of triple-glazed insulating glass units (TIGUs) under uniform loads is crucial for the wind-resistant design and safety assessments of glass curtain wall systems (GCWS). However, available empirical data and numerical simulations are inadequate in accurately evaluating the mechanical behavior of this material. This paper presented an experimental and numerical study on the load-bearing performance of TIGUs, focusing on the equivalent thickness and load-sharing ratio calculation. Three pieces of TIGUs and five pieces of Polyvinyl Butyral (PVB)-laminated TIGUs were used in the loading tests. The major factors varied in the investigation include rectangular dimensions, glass pane thicknesses, and inner and outer airspace thicknesses. Two finite element (FE) models were built based on different methods. The applicability, accuracy, and computational efficiency of the models above were compared. Based on the conceptual and FE parametric analysis, the combined coefficient formula applicable to the calculation of equivalent thickness of PVB-laminated glass was proposed by surface fitting, and the load sharing ratio with respect to changes in the inner and outer airspace thicknesses was investigated. Finally, a simplified calculation method based on airspace coefficients, considering the effects of outer and inner airspace thicknesses, aspect ratio, and area, was proposed, which has superior applicability for precise and rapid evaluation of both TIGUs and PVB-laminated TIGUs commonly used in practical engineering, as the improvements to the stiffness distribution method adopted by the ASTM E1300.
Highlights Influences of airspace thickness, aspect ratio, and area on load distribution in TIGUs were investigated. Two high-precision FE models were built, validated, and compared. Fitted formulas for load-sharing ratio and equivalent thickness were proposed by conceptual and parametric analysis. Airspace coefficient was employed for improving the stiffness distribution method.
Experimental and numerical study on load-bearing performance in triple-glazed insulating glass units
Abstract Precise and rapid calculation of triple-glazed insulating glass units (TIGUs) under uniform loads is crucial for the wind-resistant design and safety assessments of glass curtain wall systems (GCWS). However, available empirical data and numerical simulations are inadequate in accurately evaluating the mechanical behavior of this material. This paper presented an experimental and numerical study on the load-bearing performance of TIGUs, focusing on the equivalent thickness and load-sharing ratio calculation. Three pieces of TIGUs and five pieces of Polyvinyl Butyral (PVB)-laminated TIGUs were used in the loading tests. The major factors varied in the investigation include rectangular dimensions, glass pane thicknesses, and inner and outer airspace thicknesses. Two finite element (FE) models were built based on different methods. The applicability, accuracy, and computational efficiency of the models above were compared. Based on the conceptual and FE parametric analysis, the combined coefficient formula applicable to the calculation of equivalent thickness of PVB-laminated glass was proposed by surface fitting, and the load sharing ratio with respect to changes in the inner and outer airspace thicknesses was investigated. Finally, a simplified calculation method based on airspace coefficients, considering the effects of outer and inner airspace thicknesses, aspect ratio, and area, was proposed, which has superior applicability for precise and rapid evaluation of both TIGUs and PVB-laminated TIGUs commonly used in practical engineering, as the improvements to the stiffness distribution method adopted by the ASTM E1300.
Highlights Influences of airspace thickness, aspect ratio, and area on load distribution in TIGUs were investigated. Two high-precision FE models were built, validated, and compared. Fitted formulas for load-sharing ratio and equivalent thickness were proposed by conceptual and parametric analysis. Airspace coefficient was employed for improving the stiffness distribution method.
Experimental and numerical study on load-bearing performance in triple-glazed insulating glass units
Wang, Zhiyuan (author) / Liu, Junjin (author) / Li, Dian (author) / Yang, Kexin (author) / Chen, Meihe (author) / Wang, Chao (author)
2024-02-07
Article (Journal)
Electronic Resource
English
METHODS FOR QUALITY CONTROL OF DOUBLE AND TRIPLE GLAZED INSULATING GLASS UNITS
| British Library Online Contents | 2017
Response of structurally glazed insulating glass units to wind pressures
| Elsevier | 1990