Week 8 Challenge

AIM:

Calculate the centrifugal load and analysis STAAD pro.

GIVEN:

• The span of the bridge is 12 m.
• Width of carriage way is 7 m.
• The bridge is subjected to a live load of Class 70R tracked vehicle.
• The design speed of the vehicles is 75 km/hr.
• The radius of curvature in the bridge is 3 m.

PROCEDURE:

1.Create a node

2.Using translation reputing method one step 7m spacing X direction

3.Selected beam use reputing method one step 12m spacing Z direction

4.Seleted corner nodes -10m Y diretion

5.It is the fixed supports so bottoms are fixed

6.To create a 0.5m spacing plate and thickness is 0.3m

7.Selecte the plate use reputing method X direction 0.5 spacing 13 steps

8.Next Z direction 23 step 0.5m spacing

9.The pier size is 1m, girder, crossgirder 0.5m-0.7m

CALCULATION:

Calculation of centrifugal force formula = WV²/127R

= (( 70X75² )/( 127X3 ))

= 1033.4645669291 kN

10.Loading > Definition > Vehicle definition

11.Load casededails > load generation type

12.Next go to the run analysis > postprocessing mode

RESULTS:

13.Deflection

14.Displacement

15.Shear FY

16.Shear for beams

17.Bending moment

18.Bending moment for beams

19.Plate resuls MY local

20.Plate results SY local

21.Whole structure reations