Investigation on buckling behavior of laminated glass columns with elastic lateral restraint under axial compression

• Published in: Composite structures 2022-01, Vol.279, p.114810, Article 114810
• Main Authors: Huang, Xiaokun, Duan, Shukun, Liu, Qiang, Nie, Jianguo, Han, Weitao
• Format: Article
• Language: English
• Subjects: Axial compression; Buckling; Design method; Elastic lateral restraint; Laminated glass
• ISSN: 0263-8223; 1879-1085
• DOI: 10.1016/j.compstruct.2021.114810

Since the slenderness ratio of the laminated glass columns is generally high, they are vulnerable to flexural buckling under compression. The laminated glass column with elastic lateral restraint is a feasible way to improve the stability of the column, which is widely used in engineering, such as glass fins laterally restrained by glass panels via adhesive. However, existing research on the behavior of this type of glass columns is still lacking. This paper presents a study on the buckling behavior of laminated glass columns with elastic lateral restraint under axial compression. Based on the experimental and analytical studies, the influences of adhesive and glass column size on the buckling resistance of the glass columns were studied in detail. In addition, the shear modulus and strength of structural silicone adhesive were obtained based on the test results. Finally, considering glass crack and adhesive failure, the practical engineering design methods were proposed for the laminated glass columns carrying axial loads. By comparison with test results, the reliability of the proposed design methods is validated.