Week 11 Challenge

Given Date-

Location of Bridge Delhi

Rcc Bridge

Grade M40

Box girder 1.5 m x 1.5 m

Dia Pier =2.5

Deck Slab Width =7 Mtr

Width of Pier Cap 6 Mtr

Slab Thikness 550 mm

Sol:-

Effective Temperature Difference

=(48.4--2.2)/2+10=35.3 Degree

As Per IRC 6

Stress due to temperature

=11.27*10-6*35.3*5000(40)1/2=12.58

For the purpose of calculation teperature effect the coefficient of thermal expansion for

RCC,PSC STEEL Structure may be taken as 12.0*10-6/oc.

Max Permissible strees

=(2/3)*0.7*(40)1/2=2.95

Maximum temperature in the location in the location IRC:6 = 48.4 Degree

Minimum temperature in the location as per location as per IRC 6 =-2.2 Degree

Max Temperature = 48.4

Min Temperature = -2.2

top = 48.4

Bottom =(2.1/17.8)*48.4)5.710

Open Staad Pro

1.Draw the Bridge

span is 9 mtr

Box Girder is 1500*1500

Deck thickness 550 mm

pier 2.5

2 . Thikness of box girder

3. 3d View

4. go to loading

add temperature load

& Apply the Temperature Load.

5. save the file

go to run analysis

0 Errer , 0 Warring , 0 Notes

go to processing mode

view the difflection MY Difflection

Difflection MZ

Beam Strees

MX Contour

MY Contour

Attach Staad Pro File

Thank you.