| Title |
Buckling Load of Heat Treated Glass Column |
| Keywords |
Glass Column ; Buckling ; Laminated Glass ; Monolithic Glass ; PVB |
| Abstract |
Glass is a material that has relatively low tensile strength yet high compressive strength, 400～900N/mm2. Although glass performs well under compression, there is danger of brittle failure. Brittleness of glass is correlated with the presence of many micro-cracks on the surface. The crack started from these micro-cracks under tensile stresses propagates suddenly into the whole surface. To overcome this safety problem, heat treatment, lamination and design approaches have been developed. Today the use of glass is steadily increasing in modern architecture. The examples of glass column are increasing accordingly. The strength of glass column is likely to be determined by instability because of its high slenderness. This study describes the buckling strength of glass columns. To estimate the behaviors of monolithic and laminated glass columns, bucking tests were carried. Based on these tests, the effects of initial deformations and PVB(polyvinyl butyral) shear modulus on the bucking strength of glass column are investigated. |