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HomeMy WebLinkAboutB15-0045 Engineer Letter HILL STRUCTURAL DESIGN, LLC STRUCTURAL ENGINEERING AND DESIGN 9888 W.Belleview Ave.#107 (303)973-9806 Littleton,CO 80123 loren@hillstructuraldesign.com RECORD TO: Renewal By Andersen 1401 W. Bayaud Ave. Denver, CO 80223 Attn: Matthew Seiler DATE: 01/12/2015 JOB: #1501-02 PROJECT: Marie Ann Foonberg Residence—4515 Big Horn Rd., Vail, CO 80617 RFI ❑ MEETING NOTES RESPONSE E CLARIFICATION/CHANGE The new enlarged header for this project will be positioned at the rear of the main level dining room. The opening in this wall is along a gable end wall. The new opening will be approximately 95 1/4" wide and 82 3/8"tall. The new header for this opening shall be at least(3)-2x8 with single 2x6 trimmer stud and single 2x6 king stud each side. �r4mv:a�.Zae / SIGNED: COPY TO: • / 1/' • „ file Loren R. Hill, PE -44. - HILL STRUCTURAL DESIGN JOB Foonberq Residence-4515 Big Horn Rd., Vail, CO 9888 W. Belleview Ave., #107 SHEET NO. 1 _ OF 2 Littleton, CO 80123 CALCULATED BY LRH DATE 01/12/2015 (303) 973-9806 CHECK BY DATE toren@hillstructuraldesign.com SCALE NOT TO SCALE g-:.msaNiiii 401/ I / ft i ) ,.1;' 25'-0" ( 2i ) teed,' ,s/ONAt t -. I 01/12/2015 I II — I II - - - - - - - - 0 - - H I z on I I I II 0 I _ _ _ DINING ROOM 11 11 - - - - - - - 1 11 �� 3 -2x8 — - - - - - 71 + + csv�' cs��' NORTH ROOF FRAMING PLAN NOT TO SCALE ,,,,o�1'j'°° PLAN NOTES FOR NEW CONSTRUCTION: 1. DO NOT SCALE DRAWINGS. 2. (E) REFERS TO EXISTING CONSTRUCTION ( ), (N) REFERS TO NEW ( ). HILL STRUCTURAL DESIGN JoB Foonberg Residence-4515 Big Horn Rd., Vail, CO 9888 W. Belleview Ave., #107 SHEET N0. 2 OF 2 Littleton, CO 80123 CALCULATED BY LRH DATE 01/12/2015 (303) 973-9806 CHECK BY DATE toren@hillstructuraldesign.com SCALE NONE DESIGN CRITERIA: Foonberg Residence. 4515 Big Horn Rd.. Vail. CO Job #1501-02 Roof Live Load (Snow) 80 psf Roof Dead Load 15 psf Floor Live Load 40 psf Floor Dead Load 15 psf Wind (3 Second Gust) 90 mph (Exp. C) Seismic Design Category B IBC/IRC Edition 2012 STRUCTURAL WOOD FRAMING: a. Built—up posts shall consist of Douglas Fir—Larch or Hem Fir #2 or better 2x4 or 2x6 studs per plan and shall be nailed together with 2 rows of 16d nails © 6" on center along each stud. b. Built—up beams consisting of multiple 2x members shall be nailed together with two rows of 16d nails spaced at 12" on center, or with two rows of 1/2" diameter thru—bolts spaced at 24" on center. c. Laminated veneer lumber (LVL) shall have the following minimum properties: 1. Flexural stress 2600 psi 2. Modulus of elasticity 1,900,000 psi 3. Tension parallel to grain 1850 psi 4. Compression parallel to grain 2310 psi 5. Compression perpendicular to grain (parallel to glue line) 750 psi 6. Horizontal shear 285 psi 7. Connection of multiple—member beams: A. Top—loaded beams i) For members 12" deep or less, nail each member to the next with 2 rows of 16d nails at 12" o.c. ii) For members greater than 12" deep, nail each member to the next with 3 rows of 16d nails at 12" o.c. B. Side—loaded beams i) For two or three member beams, nail each member to the next with 3 rows of 16d nails at 12" o.c. ii) For four member beams, bolt through with 2 rows of 1/2" diameter bolts at 12" o.c. iii) For members consisting of more than four members, contact structural engineer. GENERAL REQUIREMENTS: a. Construction practices: General contractor is responsible for means, methods, techniques, sequences and procedures for construction of this project. Notify structural engineer of omissions or conflicts between the working drawings and existing conditions. Coordinate requirements for mechanical/electrical/plumbing penetrations through structural elements with structural engineer. Jobsite safety is the sole responsibility of the contractor. All methods used for construction shall be in accordance with the latest editions of the IBC/IRC. b. Existing structures: Contractor shall be responsible for verifying dimensions, elevations, framing, foundation and anything else that may affect the work shown on the drawings. Underpinning, shoring and bracing of existing structures shall be the responsibility of the contractor. PROVIDE A MINIMUM ''O`Z`��9'�f ;�c�i� , OF ONE KING STUD, SEE FRAMING PLANS ®: ,,;--/0„..-P ;' OR AS SPECIFIED ON FOR HEADER SIZE ca it PLAN $ s . 1 ! ) - POSTS SPECIFIED ON PLAN 4 s � A• ` ��% INDICATE TRIMMERS ONLY & +t®,e► S DO NOT INCLUDE KING STUDS ,t Fir'/®NA�(� :' 411 TYPICAL WINDOW/DOOR HEADER SCALE: 3/4" = 1'—O" 01/12/2015