Analysis on Flexural Capacity of Square Steel Tube Truss Concrete Beams with Grouted Chords

Figure 8

Influence of different parameters on load-deflection curves. (a) Concrete strength grade. (b) Steel ratio of steel tube of upper chords. (c) Steel ratio of steel tube of lower chords. (d) Truss joint spacing.

(a)

(b)

(c)

(d)