ZB321(100) truss press limited table No. internal force structure form not reinforced model reinforced model SS DS TS DDR SSR DSR TSR DDR 321(100) standard truss moment(kN.m) 788.2 1576.4 2246.4 3265.4 1687.5 3375 4809.4 6750 321(100) standard truss shear (kN) 245.2 490.5 698.9 490.5 245.2 490.5 698.9 490.5 321 (100) Table of geometric characteristics of truss bridge(Half bridge) Type No. Geometric characteristics structure form not reinforced model reinforced model SS DS TS DDR SSR DSR TSR DDR 321(100) Section properties(cm3) 3578.5 7157.1 10735.6 14817.9 7699.1 15398.3 23097.4 30641.7 321(100) Moment of inertia(cm4) 250497.2 500994.4 751491.6 2148588.8 577434.4 1154868.8 1732303.2 4596255.2