Q25. | The portal bracing in a truss bridge is used to : |
Q26. | The problem of lateral bucking can arise only in those steel beams which has : |
Q27. | In a truss girder of a bridge, a diagonal consists of mild steel flat 400 ISF and carries a pull of 800 kN. If gross diameter of the rivets is 26 mm,then number of rivets required in the splice is : |
Q28. | The best arrangement to provide unifed behaviour in built up steel columns is by : |
Q29. | A column base is subjected to moment.If intensity of bearing pressure due to axial load is equal to stress due to the moment,then bearing pressure between base and the concrete is : |
Q30. | Battening of preferable when : |