کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
267857 | 504417 | 2012 | 13 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Buckling of flat laminated glass panels under in-plane compression or shear Buckling of flat laminated glass panels under in-plane compression or shear](/preview/png/267857.png)
Because of evident aesthetic, lighting and architectural advantages, glass curtain walls are largely used to clad modern buildings. Since these elements are considered to constitute purely architectural systems, they are essentially designed to resist loads acting orthogonally to the plane of the façade (e.g. wind loads). Contrarily, glass elements are frequently used as structural components able to sustain in-plane loads (e.g. columns, stiffening fins, beam elements, stairs, etc.), thus to preserve their integrity a buckling verification could assume great importance.In order to overcome these problems, an analytical formulation is proposed for the estimation of the buckling resistance of flat laminated glass panels under in-plane compression or shear. Two different design approaches are taken into account and compared: the first one directly derives from the theory of sandwich panels, whereas the second one is based on the approximate concept of equivalent thickness. As discussed in the paper, this last approach constitutes a useful design expedient for the deformability and resistance check of buckled laminated panels under in-plane compression or shear, in presence of different boundary conditions. Since the resistance of such brittle elements directly depends on the level of connection between the glass panes offered by the interlayer, the effects of possible temperature and time-loading variations are highlighted. The obtained analytical results are in agreement with sophisticated numerical simulations.
► Glass elements are used as structural components, subjected to in-plane loading.
► Formulations derived from theory of sandwich panels cannot be directly used.
► The proposed analytical model allows to simply evaluate the critical buckling load.
► By means of buckling coefficients, the approach is extended to various boundaries.
► The equivalent thickness concept is used to investigate the load-carrying behavior.
Journal: Engineering Structures - Volume 36, March 2012, Pages 185–197