Steel truss bridges - Computational Analysis and Design of Bridge Structures - page 310

11′ 0″

W12 × 96 W12 × 96

5′ 1″ 5′ 1″

W10 × 33
(Vertical)

W10 × 33
(Vertical)

2″ × 6″ Timber handrail
1.5″ × 1.5″ × 3/16″ T.S guard rail
20 gauge galvanized
composite
floor deck

L 5″ × 5″ × 3/8″
Diagonal (TYP)

2′ 0″

2 MC12 × 50
(TYP)

2 MC12 × 50 (TYP) Floor beam

W12 × 30 (TYP)

Truss T2 Truss T1

Section A-A
typical walkway section

Figure 10.13 Typical cross section of the pedestrian pony truss bridge.

Table 10.1 Truss sections of pony truss bridge
Member

Size

Top chord W12 × 96

Bottom chord 2MC12 × 50

Vertical W10 × 33

Diagonals L 5 ″ × 5 ″ × 3/8 ″ (127 × 127 × 10 mm)

Floor beam W12 × 30

distributed member load using the information from the section properties
in the structural modeling phase. In this case study, all steel members and
concrete deck are considered. Bridges that are designed only for pedestrian/
bicycle use should design the live load as 4.1 kN/m 2 (85 psf) and typical
panel width is 2 m (6′-9″).