Figure 3.
The two-panel illustration presents longitudinal deformation behaviour of a cable-stayed bridge from south to north. Panel a shows the full bridge deck with labelled sections A A at the south end and B B at the north end, and central regions marked C C and D D. The deck response is divided into hogging above the reference line and sagging below it, with the transition located near the mid span. Panel b focuses on the south and north towers. Sections G G and H H mark the upper tower regions, while E E and F F mark the lower tower regions. Sagging occurs near the deck level, and hogging appears above it in both towers, showing similar deformation patterns on the south and north sides.Sagging and hogging moments of the NDB girders (a) and towers (b)