When an 'Atrium' is not a true atrium by Code
2013年12月19日 · Here's another potential argument the AHJ could use to 'ding' me. While I personally consider this space to be an atrium an not a 'penetration' I guess the argument could be made that it's penetrating 2 horizontal assemblies (e.g. floors) and therefore would be also subject to the requirements of Section 714 "Penetrations".
IBC Section 404 Atriums - The Building Code Forum
2010年5月24日 · I am working on a code analysis for a project. We have a two story atrium open to the second floor. Section 404.5 says a smoke control system is not required for atriums that connect only two stories. OK fine. Section 404.6 calls for atriums be separated from adjacent space by a 1-hr fire...
Section 404 Atriums 2006 IBC - The Building Code Forum
2011年11月29日 · The floor of the atrium shall not be used for other than low fire hazard uses and only approved materials and decorations in accordance with the International Fire Code shall be used in the atrium space. Exception: The atrium floor area is permitted to be used for any approved use where the individual space is provided with an automatic ...
Atrium or Floor Opening (or Both)? - The Building Code Forum
2019年7月3日 · Question: I have three story B-occupancy building with a stacked lobby. In the lobby, there is a stacked, small floor opening and fancy stair. The floor opening / stair connects three stories. The floor opening / stair complies with …
Define this space: - The Building Code Forum
2011年11月1日 · A two story space in NFPA 101 can be an atrium. All atriums in NFPA 101 require smoke control (or at least an analysis showing smoke layer height will be maintained). This contrasts IBC's requirements where you can call a two story space an atrium but only require smoke control at three or more stories (code sections quoted by Codegeek above).
3 story room VS 3 story atrium - The Building Code Forum
2020年4月29日 · @Judy Bethuy Based on what you describe as a 3 story space, it appears to still be an atrium even if you enclose it with glazing and its own entrance. You don't need to have any fire barriers though as long as you comply with the exceptions of Section 404.6 which you might have already looked at.
Atrium Designation - The Building Code Forum
2022年11月11日 · My question is that since the definition of Atrium is, A vertical space that is closed at the top, connecting two or more stories in Group I-2 and I-3 occupancies or three or more stories in all other occupancies, if the "atrium" space is not open to or connecting any story other than the ground floor, is it technically considered and atrium?
3 story room VS 3 story atrium | Page 2 - The Building Code Forum
2009年10月17日 · IBC defines atrium as "An opening connecting two or more stories other than enclosed stairways, elevators, hoistways, escalators, plumbing, electrical, air-conditioning or other equipment, which is closed at the top and not defined as a mall. Stories, as used in this definition, do not include...
2 story open space or Atrium | The Building Code Forum
2010年3月11日 · I am looking at a horizontal shutter that will close the opening between floors 2 and 3 when smoke/fire alarm sounds. The horizontal shutter would affectively negate the smoke requirements of a 4 story atrium. The horizontal shutter meets UL10B. However it is NOT a 1-hour fire rated shutter and I think IBC Section 712.3 fits into the argument here.
Atrium in existing 2 story building - The Building Code Forum
2022年7月25日 · The office is two stories, each being around 2,000sf (below sprinkler requirement). The existing building is not sprinklered, but the lobby/entrance/waiting area is. The waiting area has a 2 story atrium space, there is no stair within it (stair is located elsewhere), but it opens up to Level 2 with a railing separation.