Print Email Facebook Twitter Design, Engineering and Experimental Testing of Tubular Glass Columns Title Design, Engineering and Experimental Testing of Tubular Glass Columns Author Veenstra, C.R.A. (Student TU Delft) Noteboom, C. (TU Delft Applied Mechanics) Oikonomopoulou, F. (TU Delft Structural Design & Mechanics) Overend, M. (TU Delft Structural Design & Mechanics) Contributor Louter, Christian (editor) Belis, Jan (editor) Bos, Freek (editor) Date 2022 Abstract This research revolves around the design, fabrication and testing of tubular glass columns, with particular focus on their redundancy and fire-safety mechanisms; moreover, addressing aspects such as: the column shape; cleaning and maintenance; end connections; geometric tolerances in the glass and demountability. Two alternative circular hollow (tube) column designs are initially developed and engineered to address these aspects, namely: the MLA (Multi Layered with Air) and the SLW (Single Layered with water). In both concepts the main load-bearing structure consists of two concentric laminated glass tubes. Thus, in order to explore the manufacturing challenges and structural potential of these concepts, the prototyping and experimental work focuses on six 300 mm long samples with 115 mm outer diameter that are laminated and fitted into customized, engineered steel end-connections. Particular attention in terms of manufacturing is paid to the lamination process and associated bubble formation, the possible fracture of the glass by internal resin-curing stresses and the interface between the glass tube and the steel end-connections. All samples are laminated with Ködistruct LG 2-PU component. Three samples are assembled using DURAN® (annealed) glass and the other three are using DURATAN® (heat-strengthened) glass. Subsequently, the six samples are tested in compression until failure to investigate the behaviour of the interlayer material, the post-fracture behaviour of the designs, the differences between annealed and heat-strengthened samples, the capacity of the glass tubes and the performance of the end connections. Initial cracks appeared between 95-160 kN (compression strength of 30-50 MPa) in the DURAN® samples and between 120-160 kN (compression strength of 37-50 MPa) in the DURATAN® samples. These loads are lower than the ones estimated by calculations; in specific, the first cracks occurred at 34-64% of the calculated load. Nevertheless, the samples are found to be robust, with a considerable load-bearing capacity beyond the first cracks, leading to a maximum nominal compression strength capacity of up to 152 MPa for the DURATAN® samples and up to 233 MPa for the DURAN® samples. Subject glass columnglass tubeslaminated tubestubular glass columnsglass compression strengthstructural glass To reference this document use: http://resolver.tudelft.nl/uuid:ccd9642b-c20b-4db1-9f8e-4a1bc2aa90f7 DOI https://doi.org/10.47982/cgc.8.410 Source Challenging Glass Conference Proceedings: Conference on Architectural and Structural Applications of Glass, 8 Part of collection Institutional Repository Document type conference paper Rights © 2022 C.R.A. Veenstra, C. Noteboom, F. Oikonomopoulou, M. Overend Files PDF 1307.pdf 1.32 MB Close viewer /islandora/object/uuid:ccd9642b-c20b-4db1-9f8e-4a1bc2aa90f7/datastream/OBJ/view