2014-00125 (New Home) - Laserfiche WebLink

Home Browse Search

. Mattson Basset Creek Business Center Macdonald 901 North 3rd Street, #100 Young Minneapolis, MN 55401 struCtural 6I2-827-7825 voice engineers 612-827-0805 fax August 15, 2014 Mr. Peter Keosya Energy Saving Homes Sent via emaii to: �qkeos�a[a�,gmail,c_o_m Re: 1404 Baldur Park Road Noted Item Design Wayzata, MN 55391 MMY Project Number 14351.00 Dear Peter, As requested, we have completed our structural analysis for the hand-framed rafters, stairway supports, and clipped beams framing areas of the above noted residence. Our scope of work included two site visits to the project to observe the existing conditions and take information from the existing and in-progress construction of the structure, which were completed on June 20 and July 31, 2014. Background and Description The new residence has been under construction for the past few years. It is my understanding that the majority of the project framing was engineered by Stock Building Supply, using plywood web floor joists, Ivls, glulams, and prefabricated roof trusses supplied by Menards. Portions of the roof framing and ceiling framing were designated to be hand framed. MMY originally came on site in June after the majority of the construction had been completed. We were asked to visit the site, and to provide details for the hand-framed rafters, stairway supports, and clipped beams. Our scope of work involves analyzing the noted existing in-place items and providing revised details, if necessary, for the mentioned areas of the structure for compliance with the 2007 Minnesota State Building Code. Opinions and Recommendations Our calculations indicate that when constructed per the following structural notes and attached sheets 1-5 dated 8/15/2014, that the installation related to our scope of work will be in conformance to the structural provisions of the noted building codes. The wood-framed portions of the building are generally used as sleeping areas and have a live load capacity requirement of 30 PSF per the Building Code except at the kitchenette area, where the requirement is 40 PSF. The original design documents prepared by the lumberyard indicate that the design live load for all of the wood framed portions is 40 PSF and the design dead load is 12 PSF. The reduced requirement at sleeping areas offers an extra 10 PSF that can be applied to the dead load for a total of 22 PSF at sleeping areas. At the kitchenette, we performed an analysis and verified that the in place 9.5"TJI joists are capable of supporting a dead load of 22 PSF and a live load of 40 PSF. STRUCTURAL NOTES Unless noted otherwise on the plans and/or in the details,these notes shall apply. If there are discrepancies between the plans/details and these notes, the contractor shall conform to the more stringent requirements, unless clarified with the Structural Engineer of Record (SER) prior to work. MATERIAL STRENGTHS Structural Steel Fasteners I��_il Rc�rie��l_,etler i'Fiae I oC6