Question

10 x 12" column C A 10 × 6" risers 60" 9 runs X 12 -108" 4'0 19'0 Figure 18.22 Problem 18.1 18.1 Design a typical flight of the staircase shown in Fig. 18.22, which is a part of a multistory building. 20 MPa) and f, 60 ksi The height between the concrete floors is 10ft (3.0m). The stairs are supported at the ends of the landings and carry a live load equal to 120 psf (5.75 kN/m2); f (400 MPa).

Answer 1

バcase. : 2"-12" = 18. = 216 2- 2 216 = 10.8 let.us lake d="', and D=12 mn. 2

For Jordi 3Comm -冲 5.4864 m the eigmmment 21 y 1.3716 x 11,391(+2,3-2)-(25. 5 x 2.3432 x 2.7432 Lt 2. м,-171.96-59.26-23.98 Jess re dheindacement;

lSooo 2 32.12 ん10 mi7h 1 SD 310 mm2 210