Week 1 Challenge

Dead load for various Components of Girders are calculated below:

A) For Overall Width of 11.400m

i) For Deck Slab of Length A (on both sides) = 2x1.5*0.225*25=16.875 KN/M

(Here A= (11.4-4.2-4.2)/2=1.5m)

ii) For Tapered Length 1.370m (on both side) = 2*1.370* (0.225+0.350)/2)*25 = 19.694 KN/M.

iii) For straight length of 0.296m (on both side) = 2*0.296*0.350*25 = 5.180 KN/M

iv) For Tapered Length 1.200m (on both side) = 2*1.200* (0.225+0.350)/2)*25 = 17.250 KN/M

v) For straight length of 1.361m (on both side) = 2*1.361*0.225*25 = 15.311 KN/M

vi) For Box girder (For Hatch area, file enclosed)= 1*1.87*25 = 46.75 KN/m

(Here, 1.87sqm is the area of hatch potion, this area is calculated in Auto Cad.)

Total Dead for Box Girder =

16.875+19.694+5.180+17.250+15.311+46.75 = 121.06KN/M

B) For Overall Width of 8.400m

For 8.400m width we will not consider length "A"

i) For Tapered Length 1.370m (on both side) = 2*1.370* (0.225+0.350)/2)*25 = 19.694 KN/M.

ii) For straight length of 0.296m (on both side) = 2*0.296*0.350*25 = 5.180 KN/M

iii) For Tapered Length 1.200m (on both side) = 2*1.200* (0.225+0.350)/2)*25 = 17.250 KN/M

iv) For straight length of 1.361m (on both side) = 2*1.361*0.225*25 = 15.311 KN/M

v) For Box girder (For Hatch area, file enclosed)= 1*1.87*25 = 46.75 KN/m

(Here, 1.87sqm is the area of hatch potion, this area is calculated in Auto Cad.)

Total Dead for Box Girder =

19.694+5.180+17.250+15.311+46.75 = 104.185 KN/M

For Staad Analysis, I don't have sufficient knowledge and also the software which you provided me and in vedios nowhere described that how we will change the units before starting the project. Also in vedios nowhre explain that how we do modelling of Box Girder.

From this availabe data, We can calculated only dead load for box girder. For pier we don't have any height for calculation.