The portal bracing in a truss bridge is used to________?
Aprevent the sidesway buckling of top chord
Bkeep the rectangular shape of the bridge cross-section
Cstiffen the structure laterally
Dtransfer load from top of end posts to bearings
Correct answer
D. transfer load from top of end posts to bearings
Explanation
The correct answer is transfer load from top of end posts to bearings.