Portal Column Restraints
Portal Column Restraints
(OP)
Hi,
If a portal is clad in blockwork to eaves (no sheeting rails) can it be assumed the blockwall (215MM thk.) between the flanges (305X165 Universal Beam) be considered as providing restraint to the column compression flange at the bottom of the rafter haunch. IF not has anyone any suggestions? Note, the eaves tie will probably be at higher level to suit the roof and wall bracing.
If a portal is clad in blockwork to eaves (no sheeting rails) can it be assumed the blockwall (215MM thk.) between the flanges (305X165 Universal Beam) be considered as providing restraint to the column compression flange at the bottom of the rafter haunch. IF not has anyone any suggestions? Note, the eaves tie will probably be at higher level to suit the roof and wall bracing.






RE: Portal Column Restraints
That being said, the wall is parobably parallel to the beam, so, could you add some diagonal angle bracing from the bottom flange of gthe steel beam to the underside of the floor/roof diaphragm system to brace the bottom chord?
Mike McCann
McCann Engineering
RE: Portal Column Restraints
Thanks
RE: Portal Column Restraints
RE: Portal Column Restraints