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TM RIPPEY Tigard,Oregon 97223
CONSULTING ENGINEERS Phone: (503)443-3900
Fax: 15031443-3700
STRUCTURAL CALCULATIONS
PROJECT: McCORMACK STAIR INFILL
LOCATION: TIGARD,OREGON
CLIENT: MILDREN DESIGN GROUP
DATE: JULY 19,2012
PROJECT NUMBER: 12286
TABLE OF CONTENTS:
ITEM SHEET NUMBER
GENERAL NOTES N1
LOWER LEVEL PLAN SK1
PARTIAL FRAMING PLAN SK2
SECTION AT BEARING WALL SK3
SECTION AT CONC.WALL SK4
CALCULATIONS C1-C2
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GENERAL STRUCTURAL NOTES
. CODE REQUIREMENTS:
CONFORM TO THE 2009 INTERNATIONAL BUILDING CODE AS AMENDED BY THE 2010 OREGON STRUCTURAL
SPECIALTY CODE,REFERENCED HEREAFTER AS IBC.
DESIGN CRITERIA:
DESIGN WAS BASED ON THE STRENGTH AND DEFLECTION CRITERIA OF THE IBC. IN ADDITION TO THE DEAD
LOADS,THE FOLLOWING LOADS WERE USED FOR DESIGN, WITH LIVE LOADS REDUCED PER IBC:
FLOOR LIVE LOAD: 50 PSF+ 15 PSF PARTITION LOAD
EXISTING CONDITIONS:
THE CONTRACTOR SHALL FIELD VERIFY ALL EXISTING CONDITIONS,DIMENSIONS AND ELEVATIONS. THE
CONTRACTOR SHALL NOTIFY THE ARCHITECT/ENGINEER OF ANY DISCREPANCIES FROM CONDITIONS SHOWN
ON THE DRAWINGS PRIOR TO THE START OF THE WORK.
TEMPORARY CONDITIONS:
THE CONTRACTOR SHALL BE RESPONSIBLE FOR STRUCTURAL STABILITY OF THE NEW AND EXISTING
STRUCTURES AND WALLS DURING CONSTRUCTION. THE STRUCTURE SHOWN ON THE DRAWINGS HAS BEEN
DESIGNED FOR STABILITY UNDER THE FINAL CONFIGURATION ONLY.
CARPENTRY:
SAWN LUMBER DESIGN IS BASED ON THE NATIONAL DESIGN SPECIFICATION,LATEST EDITION. SAWN
LUMBER SHALL CONFORM TO WEST COAST LUMBER INSPECTION BUREAU OR WESTERN WOOD PRODUCTS
ASSOCIATION GRADING RULES. UNLESS NOTED OTHERWISE ALL LUMBER SHALL HAVE A MAXIMUM
MOISTURE CONTENT OF 19%AT TIME OF FABRICATION. ALL WOOD IN PERMANENT CONTACT WITH
CONCRETE OR CMU SHALL BE PRESSURE TREATED UNLESS AN APPROVED BARRIER IS PROVIDED. GRADES
SHALL BE AS FOLLOWS UNLESS NOTED OTHERWISE ON THE PLANS:
FRAMING ACCESSORIES AND STRUCTURAL FASTENERS SHALL BE MANUFACTURED BY SIMPSON STRONG-TIE
• COMPANY(OR ENGINEER APPROVED EQUAL)AND OF THE SIZE AND TYPE SHOWN ON THE DRAWINGS AND
ATTACHED PER MANUFACTURER'S REQUIREMENTS AND RECOMMENDATIONS UNLESS NOTED OTHERWISE.
HANGERS NOT SHOWN SHALL BE SIMPSON HU OF SIZE RECOMMENDED FOR MEMBER. ALL FRAMING NAILS
SHALL BE COMMON NAILS. NO BOX NAILS ALLOWED. ALL FASTENERS IN CONTACT WITH FIRE RETARDENT
LUMBER MUST BE HOT-DIPPED GALVANIZED. NAIL CALLOUTS SHALL BE INTERPRETED AS FOLLOWS:
NAIL TYPE LENGTH DIAMETER
8d 2-1/2" 0.131"
10d 3" 0.148"
I6d 3-1/2" 0.162"
ALL SUB-FLOORING SHALL BE INSTALLED WITH FACE GRAIN PERPENDICULAR TO SUPPORTS,EXCEPT AS
INDICATED ON THE DRAWINGS. NAILING NOT SPECIFICALLY IDENTIFIED ON THE DRAWINGS SHALL
CONFORM TO IBC TABLE 2304.9.1.
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