HomeMy WebLinkAbout05090131-Correspondence?-$81-8856
POBox 742
C.;mtel. Indim~a
Av~l
_B?a g37
Z/onsvtlle, IN 46077
KJG ENGINEERING
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STRUCTURAL CONSULTING
RE: Lot 34 Bellewood
Carmel, Indiana
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l'ro.i~'ct # E200;.005
January 25, 2007
Henry Poor Lumber Company
AIm: Scoll Ferdinand
3315 Brady Lane
Lafayette, TN 47909
Office: (765) 474-1388
Fax: (765)474-5978
KJG Engineering's services were requested by Henry Poor Lumber Company to provide
structural engineering analysis for the house identified above. A local inspector raised concern
over the right roof valley beam above the entry to the house. The valley beam is not
continuous over its span and has been spliced in one location.
KJG was provided constmction drawings for the house prepared by R.A.K. I-lame Design, and
as-built dimensions of the valley beam were taken by Henry Poor Lumber Company. The
existing valley beam is a 2xI2 spanning 26'-6". The splice is located approximately 6'-8" from
the low end of the beam, and a 1'/s"xII'j." engineered wood rim board, 12'.-0" long, has been
. cet\tered over the splice KJG was not provided any information on the attacbment between tbe
rim board and 2x 12.
KJG Engineering based our analysis of the valley beam on dimensions from R.A.K's drawings,
as-built dimensions provided by Henry Poor, a roof dead load of 10 pounds-per-square-foot
(psf},and a roof snow load of 20 psf. Based on tbese criteria, tbe valley beam is considered to
be loaded by a triangular distributed load with a calculated force ofzero at the bigh end ofthe
beam and a maximum force of 488 pounds-per-linear foot (pH) at the low end of tbe beam.
Our analysis was also based on an assumed wood grade of Soutbern Pine #2 for the valley
beam, and we also assumed that the two existing ridge beams near tbe valley beam are botb
directly supported by king posts or bearing walls. A ridge beam wbich is not directly supported
requires rigid-frame action in the rafters wbicb span between the ridge beam and valley beam.
Thus, more load would be imparted to the valley beam being examined if tbe nearby ridge
beams were not supported
Using tbe design criteria described above, KJG Engineering's analysis bas determined that
additional reinforcing is required at tbe 2x12 splice location. Additionally our analysis
revealed tbe need for an additional support to be added near tbe bigh end of the beam to reduce
the forces at the splice location. Reinforcement at tbe new support is required as well. These
recommendations are fully detailed on the two sketcbes attached to this report.
Please note the KJG Engineering bas never visited this property, nor were we requested to
analyze any structural components in the house other than the valley beam addressed above.
Our calculations and recommendations are based solely on the construction drawings prepared
527 Sagamore Parkway W, Suite 101, \,Vest Lafayette, iN 47906
OtTice (765) 497-4598 Fux (765) 497-459l)
by RAK Home Design and the as-built dimensions provided by Henry Poor Lumber
Company. If any of our assumptions stated above are known to be inaccurate, please contact
KJG immediately as a revised analysis may be required If you have any questions regarding
this report or if you require structural engineering services in the future, please contact KJG
Engineering
Sincerely,
4/~
Jeremy S Duff, P.E.
527 Sagamore Park\\-,l)' W, SUIte 101, West Lafayette, IN 47906
Otlice (765)497-4598 Fax (765)497-4599
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