Glass panels supported by spider fittings: advantages, challenges, and applications in modern masonry façades

This paper provides an overview of point-supported glass systems using spider fittings, highlighting their advantages and challenges. A parametric analysis is performed on horizontal and vertical glass panels in canopies and curtain walls supported by spiders. Different glass thicknesses (6 mm, 8 mm and 10 mm) and wind loads (1 kPa, 1.25 kPa and 2 kPa) are considered. The paper also includes the case study of a building with a unique façade design that employs spider fittings, outlining the engineering considerations necessary for a successful installation. Two cases have been shown herein: a canopy with glass panels and a curtain wall, both supported by spider fittings. The curtain wall comprises double-glazed units with a 6 + 1.52 + 6 air gap (12 mm) on one side and an 8 + 1.52 + 6 air gap. The entire structural system is found safe according to different acceptance criteria that structural codes recommend.