I WOULD LIKE TO KNOW SAY FOR EXAMPLE A PORTAL FRAME ON ITS NORTH SIDE IS BRACED IN THE ROOF IN ITS SECOND LAST BAY AND CONSISTS OF MULLIONS AND RAFTERS IN ITS LAST BAY, HOW THE WIND LOADS FROM THE NORTH ARE TRANSFERRED TO THE BRACING IN THE ROOF (EG THERE ARE STRUTS ON THE EAST AND WEST WALL IS...
if the engineer has opted to use 250uc90 as the internal columns in portal frame, what sort of loading conditions would they be subject to? and why would an engineer opt for 250uc90 as the internal columns??