Paper Title
The Key Technology of Construction of High-Altitude and Large-Span Cantilever Slab Support System

Abstract - According to the structural design of the Dusit Thani Sri Lanka project, combined with the actual situation of the project, there is a large-span cantilevered slab structure at high altitude [1]. It was proposed cantilever support systems with H-beam + cable-stayed and H-beam + cable-braced.Which effectively solved the problem that the problem of difficulty in the construction of large-span cantilevered slabs in high-altitude. It can be combined with different types of cantilever structures to adjust the form of the support system suitable for the characteristics of the project, with strong variability. Keywords - High-rise Building, Large-span, Cantilever Slab, H-beam + cable-stayed, H-beam + cable-braced.