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5 of 31 <br /> GENERAL NOTES <br /> STRUCTURAL STEEL <br /> 1. REFERENCE STANDARDS: DESIGN, FABRICATION AND ERECTION ARE TO BE IN ACCORDANCE <br /> WITH THE LATEST EDITION OF THE AISC "CODE OF STANDARD PRACTICE FOR STEEL BUILDINGS <br /> AND BRIDGES". <br /> 2. MATERIALS: <br /> BOLTS-ASTM A307, UNLESS OTHERWISE NOTED <br /> ALL OTHER STEEL-ASTM A36 (Fy= 36,000 PSI) <br /> 3. ALL WELDING SHALL BE PERFORMED BY CERTIFIED WELDERS AND CONFORM TO AWS CODES <br /> D1.1 AND D1.3. WELDS NOT SPECIFIED ARE TO BE 1/4"CONTINUOUS FILLET MINIMUM. USE DRY <br /> E70 ELECTRODES. WHERE ON-SITE WELDING IS REQUIRED, SPECIAL INSPECTION IN <br /> ACCORDANCE WITH 2018 AND 2012 IBC SECTION 1705.2 IS ALSO REQUIRED. <br /> CONCRETE <br /> 1. REFERENCE STANDARDS:ACI 301,ACI 318, IBC. <br /> 2. MINIMUM CONCRETE STRENGTH (28 DAYS): <br /> FOOTINGS AND STEM WALLS 3,000 PSI -5 SACK MIX <br /> BASEMENT FOUNDATION RETAINING WALLS 3,000 PSI -5 SACK MIX <br /> SLAB-ON-GRADE 2,500 PSI -5 SACK MIX <br /> SLAB-ON-GRADE...EXPOSED WEATHERING SURFACES 3,000 PSI <br /> AIR-ENTRAINMENT 2.5%TO 5.5% FOR EXPOSED CONCRETE <br /> 3. MIXING: COMPLY WITH ACI 301. DO NOT EXCEED THE AMOUNT OF WATER SPECIFIED IN THE <br /> APPROVED MIX. PROPORTIONS OF AGGREGATE TO CEMENT SHALL BE SUCH AS TO PRODUCE A <br /> DENSE,WORKABLE MIX WHICH CAN BE PLACED WITHOUT SEGREGATION OR EXCESS FREE <br /> SURFACE WATER. <br /> 4. PLACING: COMPLY WITH ACI 301. PROVIDE A 3/4 INCH CHAMFER AT ALL EXPOSED CONCRETE <br /> EDGES, UNLESS INDICATED OTHERWISE ON ARCHITECTURAL DRAWINGS. <br /> 5. SLUMP: 4 INCHES PLUS OR MINUS 1 INCH. DO NOT ADD WATER TO MIX TO INCREASE SLUMP. <br /> GREATER SLUMP,ACCELERATED SET, OR HIGH EARLY STRENGTH MAY BE ACHIEVED BY USING <br /> APPROVED ADMIXTURES. <br /> 6. CURING: COMPLY WITH ACI 301. KEEP CONCRETE MOIST FOR SEVEN DAYS MINIMUM. <br /> 7. JOINTING: PROVIDE ADEQUATE JOINTING TO MINIMIZE EFFECTS OF VOLUME CHANGE. JOINTS <br /> SHOWN MAY BE ADJUSTED AT CONTRACTOR'S OPTION WITH PRIOR APPROVAL FROM ENGINEER. <br /> 8. WEATHER EXTREMES: COMPLY WITH ACI 305R FOR HOT WEATHER. COMPLY WITH ACI-306R FOR <br /> COLD WEATHER. <br /> 9. WATER/CEMENT RATIO SHALL NOT EXCEED 0.50 (BY WEIGHT), TYPICAL. <br /> 10. ALL SPECIFIED CONCRETE ANCHORS SHALL BE SIMPSON STRONG-TIE, HILTI, OR EQUIVALENT. <br /> SPECIAL INSPECTIONS REQUIRED. ANCHORS SHALL BE INSTALLED IN ACCORDANCE WITH <br /> MINIMUM EMBEDMENT, SPACING, EDGE DISTANCE, AND REQUIREMENTS PER MANUFACTURER. <br />