In one jurisdiction, it has been that way for over 20 years to require a structural certification any time we are installing any pipe over 2” in any type of construction.
Yes I do say any type of construction! John John August Denhardt, P.E. Strickland Fire Protection On Sep 25, 2018, at 7:41 PM, Mark.Phelps <mphe...@aerofire.com<mailto:mphe...@aerofire.com>> wrote: I look back over the past million or more hangers we’ve installed and can’t think of a single time anyone has called to say one failed. Mostly when we have heavy loads, say 8” heavy wall, we tighten up the spacing, maybe 8’ oc, or even just install trapeze bars to spread out the point load. We do a lot of hybrid wood/steel roof systems. Mark at Aero 602 820-7894 From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Bruce Verhei Sent: Tuesday, September 25, 2018 3:14 PM To: sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org> Subject: [EXTERNAL] Re: Type V Construction & Hangers There are several types of lightweight roof construction that I expected notes about point loads imposed by sprinklers to be on the structural plans. Another item discussed at pre-app if construction method, e.g., Z-purloin, provided. I usually called the Engineer of Record myself. Sometimes I ended up with P.E. of manufacturer. It’s just a lot faster if the AHJ makes the call. Experience is sometimes a sprinkler designer is jerked around. Two or three minutes on the phone is all it takes for the AHJ. There’s only so many manufacturers of these systems. In moderately busy FM’s office the manufacturer’s PE in Henderson or wherever will say ‘what’s up today Bob’ when you call. It’s best if you catch this at the building permit review. Best. Bruce Verhei On Sep 25, 2018, at 14:45, Steve Leyton <st...@protectiondesign.com<mailto:st...@protectiondesign.com>> wrote: Maybe so, but here’s the thing: if you apply the seismic load factors (as you’re supposed to in the building code) to standard details from companies like TJI, you’ll be shocked to find that their “pre-engineered/pre-approved” details aren’t adequate. I’ve been shown where the value of a 10d nail is less than what’s assumed in details that compose a lot of what we’ve taken for granted as “good or best” practices. Having a structural engineer review the load bearing capabilities (dead and shear) of the framing and the specific spot loads of the anchorage is a really good idea. And it’s not just seismic, it’s dead loads too. If I was an AHJ starting a new prevention bureau, it might be the first policy bulletin I issue. SML From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of MFP Design, LLC Sent: Tuesday, September 25, 2018 2:31 PM To: sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org> Subject: RE: Type V Construction & Hangers I know you CA peeps do. I had just never run into it outside of CA. <image003.jpg> Travis Mack, SET MFP Design, LLC 3356 E Vallejo Ct Gilbert, AZ 85298 480-505-9271 fax: 866-430-6107 email:tm...@mfpdesign.com<mailto:email:tm...@mfpdesign.com> http://www.mfpdesign.com<https://urldefense.proofpoint.com/v2/url?u=https-3A__na01.safelinks.protection.outlook.com_-3Furl-3Dhttp-253A-252F-252Fwww.mfpdesign.com-252F-26data-3D02-257C01-257C-257C1121d49f9e6b4cf248f108d4df580e77-257C14e5497c16da42e69ffa77d19bafe511-257C0-257C0-257C636379016677342180-26sdata-3DHJ8OA4xyeHAoxXNz5mu-252FYfycgtd5nsFrrpvzulZiNkQ-253D-26reserved-3D0&d=DwMFaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=dLwiR71i_XhSFqam3ZLeaFLiQJ3cDTUB0ReB4-yDDcg&m=-A1G9K3_5vDiifgVC9zAmTGmAiGstc9UG4QaorQXsYg&s=enoPtZjna5eOcEqa7jkUKHpi34cgMiGrJepkB_X42ns&e=> https://www.facebook.com/pages/MFP-Design-LLC/92218417692<https://urldefense.proofpoint.com/v2/url?u=https-3A__na01.safelinks.protection.outlook.com_-3Furl-3Dhttps-253A-252F-252Fwww.facebook.com-252Fpages-252FMFP-2DDesign-2DLLC-252F92218417692-26data-3D02-257C01-257C-257C1121d49f9e6b4cf248f108d4df580e77-257C14e5497c16da42e69ffa77d19bafe511-257C0-257C0-257C636379016677342180-26sdata-3DH-252BwdcgK8DLGBcNoqJEvUrzsXngySwkX56Vgf9gM9EGk-253D-26reserved-3D0&d=DwMFaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=dLwiR71i_XhSFqam3ZLeaFLiQJ3cDTUB0ReB4-yDDcg&m=-A1G9K3_5vDiifgVC9zAmTGmAiGstc9UG4QaorQXsYg&s=7O2ym0Ym-bl1NDCL-6WQiG_RNhxt6lc7dVRTMUNAWyU&e=> Send large files to us via: https://www.hightail.com/u/MFPDesign<https://urldefense.proofpoint.com/v2/url?u=https-3A__na01.safelinks.protection.outlook.com_-3Furl-3Dhttps-253A-252F-252Fwww.hightail.com-252Fu-252FMFPDesign-26data-3D02-257C01-257C-257C1121d49f9e6b4cf248f108d4df580e77-257C14e5497c16da42e69ffa77d19bafe511-257C0-257C0-257C636379016677342180-26sdata-3DeGdMZGu2wXhUupGwgGTrqF3b54OP5-252BAZvlHhABSexWY-253D-26reserved-3D0&d=DwMFaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=dLwiR71i_XhSFqam3ZLeaFLiQJ3cDTUB0ReB4-yDDcg&m=-A1G9K3_5vDiifgVC9zAmTGmAiGstc9UG4QaorQXsYg&s=_0kmdld5-SLd14NrDsZDj9OIxQKBGAg3KyRPg_zhKOk&e=> LinkedIn: https://www.linkedin.com/in/travismack<https://urldefense.proofpoint.com/v2/url?u=https-3A__na01.safelinks.protection.outlook.com_-3Furl-3Dhttps-253A-252F-252Fwww.linkedin.com-252Fin-252Ftravismack-26data-3D02-257C01-257C-257C1121d49f9e6b4cf248f108d4df580e77-257C14e5497c16da42e69ffa77d19bafe511-257C0-257C0-257C636379016677342180-26sdata-3DtT5E7LsZjSmyreKi4gDCa70EWN-252BZodi-252FhbeCbHNRijI-253D-26reserved-3D0&d=DwMFaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=dLwiR71i_XhSFqam3ZLeaFLiQJ3cDTUB0ReB4-yDDcg&m=-A1G9K3_5vDiifgVC9zAmTGmAiGstc9UG4QaorQXsYg&s=fGirey8DJBgkxEzEkItrmlxaLz8PX2AioZkEsCQGliY&e=> “The bitterness of poor quality remains long after the sweetness of low price is forgotten.” From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org<mailto:sprinklerforum-boun...@lists.firesprinkler.org>> On Behalf Of Steve Leyton Sent: Tuesday, September 25, 2018 2:30 PM To: sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org> Subject: RE: Type V Construction & Hangers All the time bruddah. SML From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of MFP Design, LLC Sent: Tuesday, September 25, 2018 2:27 PM To: sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org> Subject: Type V Construction & Hangers Has anyone run into situations where the AHJ is requiring the structural engineer on a project to provide a sealed criteria letter for the project indicating the maximum hanger spacing based on pipe size and structural member? We are seeing one local jurisdiction start to require this. <image004.jpg> Travis Mack, SET MFP Design, LLC 3356 E Vallejo Ct Gilbert, AZ 85298 480-505-9271 fax: 866-430-6107 email:tm...@mfpdesign.com<mailto:email:tm...@mfpdesign.com> http://www.mfpdesign.com<https://urldefense.proofpoint.com/v2/url?u=https-3A__na01.safelinks.protection.outlook.com_-3Furl-3Dhttp-253A-252F-252Fwww.mfpdesign.com-252F-26data-3D02-257C01-257C-257C1121d49f9e6b4cf248f108d4df580e77-257C14e5497c16da42e69ffa77d19bafe511-257C0-257C0-257C636379016677342180-26sdata-3DHJ8OA4xyeHAoxXNz5mu-252FYfycgtd5nsFrrpvzulZiNkQ-253D-26reserved-3D0&d=DwMFaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=dLwiR71i_XhSFqam3ZLeaFLiQJ3cDTUB0ReB4-yDDcg&m=-A1G9K3_5vDiifgVC9zAmTGmAiGstc9UG4QaorQXsYg&s=enoPtZjna5eOcEqa7jkUKHpi34cgMiGrJepkB_X42ns&e=> https://www.facebook.com/pages/MFP-Design-LLC/92218417692<https://urldefense.proofpoint.com/v2/url?u=https-3A__na01.safelinks.protection.outlook.com_-3Furl-3Dhttps-253A-252F-252Fwww.facebook.com-252Fpages-252FMFP-2DDesign-2DLLC-252F92218417692-26data-3D02-257C01-257C-257C1121d49f9e6b4cf248f108d4df580e77-257C14e5497c16da42e69ffa77d19bafe511-257C0-257C0-257C636379016677342180-26sdata-3DH-252BwdcgK8DLGBcNoqJEvUrzsXngySwkX56Vgf9gM9EGk-253D-26reserved-3D0&d=DwMFaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=dLwiR71i_XhSFqam3ZLeaFLiQJ3cDTUB0ReB4-yDDcg&m=-A1G9K3_5vDiifgVC9zAmTGmAiGstc9UG4QaorQXsYg&s=7O2ym0Ym-bl1NDCL-6WQiG_RNhxt6lc7dVRTMUNAWyU&e=> Send large files to us via: https://www.hightail.com/u/MFPDesign<https://urldefense.proofpoint.com/v2/url?u=https-3A__na01.safelinks.protection.outlook.com_-3Furl-3Dhttps-253A-252F-252Fwww.hightail.com-252Fu-252FMFPDesign-26data-3D02-257C01-257C-257C1121d49f9e6b4cf248f108d4df580e77-257C14e5497c16da42e69ffa77d19bafe511-257C0-257C0-257C636379016677342180-26sdata-3DeGdMZGu2wXhUupGwgGTrqF3b54OP5-252BAZvlHhABSexWY-253D-26reserved-3D0&d=DwMFaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=dLwiR71i_XhSFqam3ZLeaFLiQJ3cDTUB0ReB4-yDDcg&m=-A1G9K3_5vDiifgVC9zAmTGmAiGstc9UG4QaorQXsYg&s=_0kmdld5-SLd14NrDsZDj9OIxQKBGAg3KyRPg_zhKOk&e=> LinkedIn: https://www.linkedin.com/in/travismack<https://urldefense.proofpoint.com/v2/url?u=https-3A__na01.safelinks.protection.outlook.com_-3Furl-3Dhttps-253A-252F-252Fwww.linkedin.com-252Fin-252Ftravismack-26data-3D02-257C01-257C-257C1121d49f9e6b4cf248f108d4df580e77-257C14e5497c16da42e69ffa77d19bafe511-257C0-257C0-257C636379016677342180-26sdata-3DtT5E7LsZjSmyreKi4gDCa70EWN-252BZodi-252FhbeCbHNRijI-253D-26reserved-3D0&d=DwMFaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=dLwiR71i_XhSFqam3ZLeaFLiQJ3cDTUB0ReB4-yDDcg&m=-A1G9K3_5vDiifgVC9zAmTGmAiGstc9UG4QaorQXsYg&s=fGirey8DJBgkxEzEkItrmlxaLz8PX2AioZkEsCQGliY&e=> “The bitterness of poor quality remains long after the sweetness of low price is forgotten.” _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org<mailto:Sprinklerforum@lists.firesprinkler.org> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org<https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.firesprinkler.org_listinfo.cgi_sprinklerforum-2Dfiresprinkler.org&d=DwMFaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=dLwiR71i_XhSFqam3ZLeaFLiQJ3cDTUB0ReB4-yDDcg&m=-A1G9K3_5vDiifgVC9zAmTGmAiGstc9UG4QaorQXsYg&s=5ZVPD-BxdEqZ3ER7wuQ6hLWdgXX_GWlOqTU8HiAnLIY&e=> _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org<mailto:Sprinklerforum@lists.firesprinkler.org> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
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