Chapter 11: Cantilever construction

Cantilever construction is usually used for bridges with span lengths longer than 60 m. The method is described in many books, but the most comprehensive information can be found in Mathivat (1983) and Podolny and Muller (1982). Bridges with deck widths up to 20 m usually have a one-cell box section, while those with wider decks usually have a one-cell box section with large overhangs supported by ribs or struts (Figure 11.1). Two-cell box sections are also designed. However, as it is more complicated to analyse and construct these, they are seldom used. Cantilever bridges can be assembled of cast-in-place or precast segments.