Headers In Storm Shelter Wall
Headers In Storm Shelter Wall
(OP)
Has anyone ever used a steel lintel in a CMU wall at the exterior of a storm shelter? I am designing a school and part of a classroom wing is intended to be used as a storm shelter. Since these are classrooms, the architect would prefer the storm shelter has windows consistent with the other classrooms. I am having difficulty getting a CMU lintel to work over these openings. I can get a steel lintel to work for the loading, but I am unsure if there is evidence the steel lintel could pass the debris impact criteria. Also, I am unsure if there are FEMA rated frames available where the manufacturer would approve welding to structural steel - they are typically intended to be anchored into concrete or CMU.
Thanks for your input.
Thanks for your input.






RE: Headers In Storm Shelter Wall
Added: You can use steel, but the connection to the masonry may be a weak part of your protection wall.
Dik
RE: Headers In Storm Shelter Wall
RE: Headers In Storm Shelter Wall
Dik
RE: Headers In Storm Shelter Wall
I'm still curious if anyone has used a structural steel lintel. I was unable to find any information on debris impact or attachment of FEMA rated door/window frames with regard to structural steel.
RE: Headers In Storm Shelter Wall
RE: Headers In Storm Shelter Wall
RE: Headers In Storm Shelter Wall
Deep beam are nothing new for concrete masonry and few different shapes are required. If it is only 4' deep, the contractor would prefer to fill it all at once.
Dick
Engineer and international traveler interested in construction techniques, problems and proper design.
RE: Headers In Storm Shelter Wall
OP: I didn't know there were FEMA rated windows... I live in a pretty safe place... no tornadoes, earthquakes, hurricanes... only -40C to contend with.
Dik