HomeMy WebLinkAbout06060181 Correspondence (2)
Porch Plan Review
Page I of2
Miser, Craig
From: Joan Weerts [jweerts@ameritech.net]
Sent: Monday, June 26, 2006 9:10 PM
To: Miser, Craig
Cc: Kenneth W Weerts
Subject: Re: Porch Plan Review
Craig,
Thanks for the prompt reply. I do have a few questions and want to make sure we are looking at this the same
way. I'm assuming you are using table R502.5(2) in the building code. The table clearly states that the maximum
girder 1 header span should 8'-9", but there are several other assumption that I believe make this table
inappropriate for this use. The table is clearly related to building width and the table stops at 20 ft width The table
was developed to show the structural relationship between building width and opening allowed on the header.
The design that i have submitted uses a parallel span between beams of 7'-10". This would render this table
obsolete for this design criteria. The design criteria I used is based on the raised floor design criteria. The raised
floor design criteria is closer in design criteria for a deck rather than a load bearing wall. The raised floor
design criteria is based on the total maximum loading (#) per linear foot. This allows for the relationship between
the span of the beam and the parallel distance between beam.
I
I would like to detail the design basis of the project. The maximum span in 11 '-9 1/4" which I have rounded in 12
ft. The maximum parallel distance between beams is 7'-5" and I have rounded to 8 ft. I also assumed a loading!
of 30 Ibs 1 sq ft., a safe assumption for a deck elevated 2 It above grade. The total load per linear foot of beam
would be 240 Ibs 1 linear foot (8 x30) . .
The design loads can be found on page 40 of the attached link Table 14. The table shows that a 3 - 2"x1 0" with:a
span of 12 feet can safely support a linear load of 345 Ibs per liner foot. This is well below the calculated load of
240 Ibs.
Link: the file can be downloaded free from the southern pine council (re1#411)
b.\lR: Ilnewstore. southern Ri ne. com/cg i-bin/newsoRi n e/Rrod u ct?; ~~;
Please feel free to call me tomorrow and we can discuss the details. I'm assuming we are both looking at the
same issue in different ways. I would like to resolve this as soon as possible. please call me at my office (317)
651-2795 or my cell number (317) 997-1534.
If you reply to this email , please reply to all so I receive this at work
Thanks
Ken Weerts P.E.
IN # 9500359
~_ ----- Original Message -----
From: MlsE>r.C::ri:l,ig
To: jweerts@ameritech.net
"-- ~ Sent: Monday, June 26, 2006 3:29 PM
~ Subject: Porch Plan Review
~
'~e correct the following information for plan review.
".
",
Porch Plan Review Page 2 of 2
NOTES FOR: 06060181 BLDG 1 - PR
DATE TIME NOTE TEXT
OPERATOR
2006-06-26 15:27:32 1. Maximum span for a 3-2"x10" girder
with a 401b. live load is 8'-9".
Girders are overspanned.
cmiser
Thank You...
Craig Miser
Inspector/Plan Examiner
One Civic Square
Cannel, IN 46032
317-571-2289
cmiser@carmel.in.gov
6/27/2006