Project Title: Main South Road / Sturt Road Underpass– Detailed Design Subject: Parapet Design Job Number: 01 Contract: Sturt Road Bridge Design Date: 01/06/2014 Prepared: J Ngo Sheet: 01 of 02 Checked: D Tet Client: DPTI Approved: J Rogers Calculations Height = 1300mm = 3000mm Thickness = 300mm (top), 530mm (bottom) Cover = 40mm (AS 3600 table 4.4/4.10.3.3) Concrete strength = f’c = 40MPa Live Load: AS 5100.2 Table 11.2.2 Table 6: Parapet specifications Barrier Ultimate Ultimate Vehicle Ultimate Vehicle Minimum Performance longitudinal longitudinal contact vertical contact effective Outward load Inward load length for downward length for height (Ft) kN (FL) kN traverse load (Fv) kN vertical (He) mm (Lt) and (Lv) m longitudinal loads (LL) m Regular 250 80 1.1 80 5.5 800 Try N12 @ 250 (440mm2) fsy = 500MPa Design load = 250 / (1.1 X 1) = 227.27 kN/m2 Designed as two way slab - Ly/Lx = 3000/1300 = 2.307 > 2 One long edge discontinuous, therefore and (Table AS3600 Table βx=0.066 βy=0.028 6.10.3.2 (A)) Positive moments at mid-span M*x = x Fd x Lx2 βx
Project Title: Main South Road / Sturt Road Underpass– Detailed Design Subject: Parapet Design Job Number: 01 Contract: Sturt Road Bridge Design Date: 01/06/2014 Prepared: J Ngo Sheet: 01 of 02 Checked: D Tet Client: DPTI Approved: J Rogers Calculations Height = 1300mm = 3000mm Thickness = 300mm (top), 530mm (bottom) Cover = 40mm (AS 3600 table 4.4/4.10.3.3) Concrete strength = f’c = 40MPa Live Load: AS 5100.2 Table 11.2.2 Table 6: Parapet specifications Barrier Performance Ultimate longitudinal Outward load (Ft) kN Ultimate longitudinal Inward load (FL) kN Vehicle contact length for traverse (Lt) and longitudinal loads (LL) m Ultimate vertical downward load (Fv) kN Vehicle contact length for vertical (Lv) m Minimum effective height (He) mm Regular 250 80 1.1 80 5.5 800 Try N12 @ 250 (440mm2) fsy = 500MPa Design load = 250 / (1.1 X 1) = 227.27 kN/m2 Designed as two way slab - Ly/Lx = 3000/1300 = 2.307 > 2 One long edge discontinuous, therefore βx=0.066 and βy=0.028 (Table AS3600 Table 6.10.3.2 (A)) Positive moments at mid-span M*x = βx x Fd x Lx2
bridge_design-_civ_consulting.docx