Week 6 Challenge

Utility loads are also important load for bridges. Bridge carries many utilities besides traffic, like electric lamp post, Sign boards, Pipes carrying gas or water etc. Thus, utility load should also be considered with vehicular load. Utility loads are point load.

Here a bridge of 24m span over Narmada river carries two DI pipes one is 200mm dia and other is 700mm dia. bridge width is 3m. What pipes are carrying is not mentioned. So dead load may be calculated.

Pipe dia, d = 700mm

Pipe Type = K9 DI pipe

Span L = 24.00m = 24000mm
Self weight of DI pipe

For 700mm and class K9 weight 253.39kg/m supposed

0.253kN/m

For 24m span bridge 0.253kN/m X 24.00m

6.08kN

Pipe dia, d = 200mm

Pipe Type = K9 DI pipe

Span L = 24.00m = 24000mm
Self weight of DI pipe

For 200mm and class K9 weight 45.28kg/m

0.04528kN/m

For 24m span bridge 0.04528kN/m X 24.00m

1.09kN

aNode inserted for beam placing DI pipe

8 No cross beam placed in X direction at a distance of 3m by transitional repeat method.

Points inserted for bracings in bottom

Bottom Chord bracing.

Side bracings.

New view created to give specification to bottom members.

Property assigned to bottom Z direction member.

Prperty assigned to top main beam.

Property assigned to vertical hanger.

Property assigned to pier.

Missing prporty checked.

Error message

corrected and

Maximum and end bending moment in beam.

Bending Moment Z axis.

Annotation.

Displacement in whole Structure.

Pier selection.

Behavior of Pier.

Annotation Pier Moment

Bending moment in cross beam.

Annotationof moment.

Deflection in Cross Beam in whole structure and Report