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Answer to question #1 please:
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Answer to question #1 please:
Answer to question #1
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STRUCTURAL DESIGN OF A 3-STOREY OFFICE BUILDING: THE FULL BUILDING WILL BE DONE OVER SEVERAL ASSIGNMENTS! GIVEN: BAY SPACING (DISTANCE BETWEEN SUPPORT COLUMNS) = 8 m BAY SPACING (DISTANCE BETWEEN BEAM/COLUMN LINE) = 9 m (JOIST SPAN) LENGTH= 5 BAYS x 8m LONG = 40m EXTERIOR BEAM AND COLUMN LINE, TYP WIDTH = 3 BAYS x 9m LONG = 27m OWSJ SPAN, TYP (PRECAST SPAN ON FLOORS BELOW) HEIGHT OF EACH FLOOR IS 3.5m HEIGHT = 3 STOREYS x 3.5m= 10.5m ROOF STRUCTURE: 3.5m 3.5m- ROOF MEMBRANE (NEGLIGIBLE WEIGHT) 75 THICK CONCRETE TOPPING (24 kN/m3) 150mm THICK RIGID INSULATION 3.5m 38mm DEEP, 0.76mm (22 ga) THICK STEEL DECK OPEN WEB STEEL JOISTS (OWSJ) = 0.2 kPa DROPPED CEILING INTERIOR BEAM AND COLUMN LINE, TYP MECHANICAL ALLOWANCE = 0.15 kPa EXTERIOR COLUMN ROOF SNOW LOAD = 2.88 kPa EXTERIOR END COLUMN TYPICAL FLOOR STRUCTURE: INTERIOR END COLUMN CERAMIC TILE WITH 12mm MORTAR BED 25mm LIGHTWEIGHT CONCRETE TOPPING (18.15 kN/m3) 200 PRECAST DROPPED CEILING MECHANICAL ALLOWANCE = 0.15 kPa NOTE: DON'T FORGET PARTITION LOADS!!! FLOOR LIVE LOAD = 2.4 kPa QUESTIONS: 1. CALCULATE/DETERMINE ALL APPLICABLE GRAVITY AREA LOADS ON THE 2nd/3rd FLOOR. 2. CALCULATE/DETERMINE THE UNFACTORED (SLS) AREA LOAD (W, kPa) ON THE PRECAST FLOOR SLAB. 3. CALCULATE/DETERMINE THE MAXIMUM SPAN (NOTE: THE PRECAST FLOORS SPAN IN THE SAME DIRECTION AS THE OWSJ ON THE ROOF) OF THE PRECAST FLOOR SLABS. IS THIS ACCEPTABLE FOR OUR STRUCTURE? 4. CALCULATE/DETERMINE THE FACTORED (ULS) AREA LOAD (Wf, kPa) ON THE FLOOR IF WE REPLACED THE 200 PRECAST SLAB WITH A 125 TOTAL THICKNESS COMPOSITE DECK WITH 0.91 mm THICK STEEL DECK DECK (DON'T FORGET THE SELF WEIGHT OF THE COMPOSITE DECK IN THIS STEP, ASSUME DOUBLE SPAN). 5. DETERMINE THE MAX UNSHORED SPAN OF THE DECK IN STEP 4. 6. CALCULATE/DETERMINE THE FACTORED (ULS) AXIAL LOAD (Pf, KN) ON AN INTERIOR FLOOR COLUMN SUPPORTING ONE LEVEL OF PRECAST FLOOR (NEGLECT THE ROOF LOAD). 7. CALCULATE THE MAX SPAN FOR A CLT SLAB TO REPLACE THE PRECAST FLOOR SLAB IN STEP 3 (ASSUME DL=2.5 KPA AND SERVICEABLITY, NOT VIBRATION, GOVERNS). NOTE: 1. ENSURE ALL YOUR NOTES, CALCULATIONS, ASSUMPTIONS ARE NOTED CLEARLY AND NEATLY. 2. USE A RULER! 3. STATE ALL OF YOUR STEPS IF YOU WANT FULL MARKS. 4. SUBMIT COMBINED PDF ONLY 5. DONT FORGET A COVER PAGE AND YOUR NAME! 8m+ 9m INTERIOR COLUMN XXX
please:
STRUCTURAL DESIGN OF A 3-STOREY OFFICE BUILDING: THE FULL BUILDING WILL BE DONE OVER SEVERAL ASSIGNMENTS! GIVEN: BAY SPACING (DISTANCE BETWEEN SUPPORT COLUMNS) = 8 m BAY SPACING (DISTANCE BETWEEN BEAM/COLUMN LINE) = 9 m (JOIST SPAN) LENGTH= 5 BAYS x 8m LONG = 40m EXTERIOR BEAM AND COLUMN LINE, TYP WIDTH = 3 BAYS x 9m LONG = 27m OWSJ SPAN, TYP (PRECAST SPAN ON FLOORS BELOW) HEIGHT OF EACH FLOOR IS 3.5m HEIGHT = 3 STOREYS x 3.5m= 10.5m ROOF STRUCTURE: 3.5m 3.5m- ROOF MEMBRANE (NEGLIGIBLE WEIGHT) 75 THICK CONCRETE TOPPING (24 kN/m3) 150mm THICK RIGID INSULATION 3.5m 38mm DEEP, 0.76mm (22 ga) THICK STEEL DECK OPEN WEB STEEL JOISTS (OWSJ) = 0.2 kPa DROPPED CEILING INTERIOR BEAM AND COLUMN LINE, TYP MECHANICAL ALLOWANCE = 0.15 kPa EXTERIOR COLUMN ROOF SNOW LOAD = 2.88 kPa EXTERIOR END COLUMN TYPICAL FLOOR STRUCTURE: INTERIOR END COLUMN CERAMIC TILE WITH 12mm MORTAR BED 25mm LIGHTWEIGHT CONCRETE TOPPING (18.15 kN/m3) 200 PRECAST DROPPED CEILING MECHANICAL ALLOWANCE = 0.15 kPa NOTE: DON'T FORGET PARTITION LOADS!!! FLOOR LIVE LOAD = 2.4 kPa QUESTIONS: 1. CALCULATE/DETERMINE ALL APPLICABLE GRAVITY AREA LOADS ON THE 2nd/3rd FLOOR. 2. CALCULATE/DETERMINE THE UNFACTORED (SLS) AREA LOAD (W, kPa) ON THE PRECAST FLOOR SLAB. 3. CALCULATE/DETERMINE THE MAXIMUM SPAN (NOTE: THE PRECAST FLOORS SPAN IN THE SAME DIRECTION AS THE OWSJ ON THE ROOF) OF THE PRECAST FLOOR SLABS. IS THIS ACCEPTABLE FOR OUR STRUCTURE? 4. CALCULATE/DETERMINE THE FACTORED (ULS) AREA LOAD (Wf, kPa) ON THE FLOOR IF WE REPLACED THE 200 PRECAST SLAB WITH A 125 TOTAL THICKNESS COMPOSITE DECK WITH 0.91 mm THICK STEEL DECK DECK (DON'T FORGET THE SELF WEIGHT OF THE COMPOSITE DECK IN THIS STEP, ASSUME DOUBLE SPAN). 5. DETERMINE THE MAX UNSHORED SPAN OF THE DECK IN STEP 4. 6. CALCULATE/DETERMINE THE FACTORED (ULS) AXIAL LOAD (Pf, KN) ON AN INTERIOR FLOOR COLUMN SUPPORTING ONE LEVEL OF PRECAST FLOOR (NEGLECT THE ROOF LOAD). 7. CALCULATE THE MAX SPAN FOR A CLT SLAB TO REPLACE THE PRECAST FLOOR SLAB IN STEP 3 (ASSUME DL=2.5 KPA AND SERVICEABLITY, NOT VIBRATION, GOVERNS). NOTE: 1. ENSURE ALL YOUR NOTES, CALCULATIONS, ASSUMPTIONS ARE NOTED CLEARLY AND NEATLY. 2. USE A RULER! 3. STATE ALL OF YOUR STEPS IF YOU WANT FULL MARKS. 4. SUBMIT COMBINED PDF ONLY 5. DONT FORGET A COVER PAGE AND YOUR NAME! 8m+ 9m INTERIOR COLUMN XXX