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Skill Overview PHYS-2200 (Introduction to Structures) Introduction to Structures Project Page 1 of 8 1. The building is in Charlottetown and the associated climatic data will apply for computing the snow load on the roof. 2. All contributing live and dead loads must be calculated and factored for each building area. 3. Submit all calculations involved with the design of the members and footings as well as the structural drawing which is to be produced using CAD. 4. On the wood portion of the building, assume that D.Fir-L Select Structural joists will have a span of 5 m and be used at a spacing of 400 mm o/c and covered with 19mm T&G plywood (SPF), a 3mm protection board and a 2-ply modified roof membrane. Attached to the joists will be 19 x 64 mm strapping at 400 mm o/c and 16 mm gypsum wallboard. This portion of the building will contain R-40 fibreglass batt insulation in the ceiling space below the roof sheathing (approximately 275 mm thick). The wood section will be 7.000 m in height (that is each column is 7.000 m long). 5. Calculate the required size of beams and wood columns for the 8.000 m x 20.000 m portion of the building. The species of wood is to be D.Fir-L 20f-E Stress Grade Glulam for the beams and DF-L No.1, square for the columns. 6. On the steel section of the building, the roof has open web steel joists at a spacing of 1450 mm o/c, a steel deck with a kraft vapour barrier, 3" polyisocyanurate insulation, 3.0 mm thick protection board and a 2-ply modified membrane. The steel portion of the building will be 4.000 m high. 7. Calculate the required size of open web steel joists, steel beams (w-shapes), and columns (w-shapes). 8. Once all beams and the columns are selected, design a square footing for each column based on the calculated loading. Base plates and connections do not need to be designed for this project. However, base plates and piers should be included in the drawing. PHYS-2200 (Introduction to Structures) Page 2 of 8 9. Complete the design of components using the following criteria: • Soil bearing capacity 150 KPa • Concrete strength 20 MPa • Steel yield strength 350 MPa • Reinforcing steel 400R grade. • All live and dead loads as indicated • For simplicity, do not use the live load reduction factor • Assume the steel beams are laterally supported • Column K values 1.0 • Deflection criteria L/240 (steel beams only) (For wood beams and joists use the EsI values as required.) 10. If you find that your input variables for some of the design tables will not allow you to obtain a value from the table (that is, you are off the table), then simply pick the nearest value from the design table. (A problem with some of the components for the building is that some of the loads are too light for the design tables and a few are too heavy for the design tables.) PHYS-2200 (Introduction to Structures) Page 3 of 8 The design calculations are to be organized and labelled according to the titles provided in the left-hand column of the table below. Wood Portion of Building Title for Calculations Notes 1. Sawn Lumber Joist Typical D.Fir-L Select Structural wood joist in Part A 2a. Glulam Beam A1/A2 D.Fir-L 20f-E Stress Grade Glulam beam Same beam for E1/E2 Also use this beam from A1/B1, B1/C1, C1/D1, D1/E1, A2/B2, B2/C2, C2/D2 and D2/E2 2b. Glulam Beam B1/B2 D.Fir-L 20f-E Stress Grade Glulam beam Same beam for C1/C2 and D1/D2 3a. Sawn Timber Column A1 DF-L No.1, square, same as A2, E1, E2 3b. Sawn Timber Column B1 DF-L No.1, square, same as C1, C2, D1 Steel Portion of Building Titles for Calculations Notes 4a. OWSJ Part B Typical OWSJ for the first 5.4 meters of Part B 4b. OWSJ Part C Typical OWSJ for remainder of Part B and all of Part C 5a. Steel Beam B2/B3 W-Shape beam Same beam as D2/D3 For simplicity, when designing this beam, use the heavier UDL for the entire beam. 5b. Steel Beam B3/B4 W-Shape beam Also use this beam for D3/D4 and B4/D4 and use this beam size for B2/C2 and C2/D2 (which are under the glulam beam) 6a. Steel Column B2 W-Shape Also use this column for D2 6b. Steel Column B3 W-Shape Also use this column for D3 6c. Steel Column B4 W-Shape Also use this column for D4 7a. Footing F1 Use for columns at A1, A2, E1, E2 7b. Footing F2 Use for columns at B1, C1, C2, D1 7c. Footing F3 Use for columns at B2, D2 7d. Footing F4 Use for columns at B3, D3 7e. Footing F5 Use for columns at B4, D4 PHYS-2200 (Introduction to Structures) Page 4 of 8 Use the following references to assist you in your calculations: Handbook of Steel Construction, 10th Ed., Canadian Institute of Steel Construction Concrete Design Handbook, 3rd Ed., Cement Association of Canada Wood Design Manual, 2010, Canadian Wood Council Joist Catalog, CANAM Steel Works PHYS-2200 (Introduction to Structures) Page 5 of 8 Grading Table for Calculations Are the component selections reasonable? 3 Yes 2 Mostly 1 Frequently not Are the calculations correct? 7 Yes 5 There are some errors 3 There are many errors 1 It’s a dog’s breakfast Are the calculations complete? 3 Yes 2 No, the calculations for some components are missing. 1 No, the calculations for many components are missing. How well are the calculations laid out? 3 They are logical and easy to follow with appropriate headings. 2 Not too bad 1 They are not well laid out at all. Are the calculations neat? 4 I’d be pleased to forward them to a client as an example of the work in my company. 3 I’d still share them with a client 2 They’re not leaving this office 0 I’m offended you even submitted them to me Mark out of 20 PHYS-2200 (Introduction to Structures) Page 6 of 8 Grading Table for Drawing Roof Framing Plan 5 Accurate and complete 3 1 Poor General Notes 1 Included 0 Missing Column Schedule 2 Well presented with accurate and complete information 1 A few details are inaccurate or missing 0 Missing (or very poor) Footing Details 2 Nicely drawn with accurate and complete information 1 A few details are inaccurate or missing 0 Missing (or very poor) Appearance of Drawing 5 Good enough to forward to a client as an example of this firm’s work (e.g., proper line types, weights and fonts, aesthetically pleasing, accurate). 3 Suitable for a first draft 1 Poor Mark out of 15 Note: A cursory visual evaluation will be done on the drawing to determine if it should be accepted or rejected. Grounds for rejection would include, but not be limited to, missing elements, lack of detail. If the plan is rejected, it will receive a mark of zero. However, the plan may be resubmitted for half marks if proper corrections are made. PHYS-2200 (Introduction to Structures) Page 7 of 8 The drawing must be prepared in accordance with the following criteria. Roof Framing Plan • Provide joist sizes and spacing • Provide beam sizes • Provide column sizes • Identify all columns • Identify OWSJ depth and mass • Include title block and plan scale • Grid reference has letters across the top and numbers down the side • There is one tie joist • Include all dimensions • Use proper line weights Footing Details • Provide title block and scale • Indicate concrete cover • Indicate dimensions • Indicate rebar size • Use concrete fill • Include proper labels • Include a pedestal and base plate for each footing (neither have to be designed) This sketch can serve as a starting point for each footing detail. Be sure that dimension lines and leaders do not interfere with each other as is the case in the bottom right of the sketch. Snow Load Diagram • Make sure the snow load diagram is a snow load diagram, not a diagram of total factored load. PHYS-2200 (Introduction to Structures) Page 8 of 8 Column Schedule • Prepare a table for the column schedule as per the partial example below. Column Schedule ID Description Locations C1 W200 x 63, Steel G3, G4 C2 C3 C4 C5 Beam Schedule • Do not prepare a beam schedule. Beam information is placed beside the beam in the roof framing plan. The following notes shall be included in the drawing. GENERAL NOTES 1. ALL DESIGN AND CONSTRUCTION TO BE IN ACCORDANCE WITH THE 2015 NATIONAL BUILDING CODE OF CANADA AND ALL ASSOCIATED DOCUMENTS. 2. ALL DIMENSIONAL REQUIREMENTS ARE TO BE CONFIRMED IN CONJUNCTION WITH THE ARCHITECTURAL DRAWINGS. ARCHITECTURAL DRAWINGS MAY SUPERCEDE DIMENSIONAL DETAILS OF THE STRUCTURAL DRAWINGS. 3. THE GENERAL CONTRACTOR SHALL REVIEW AL THE DRAWINGS AND CHECK DIMENSIONS BEFORE CONSTRUCTION. REPORT DISCREPANCIES BETWEEN STRUCTURAL DRAWINGS AND DRAWINGS OF OTHER DISCIPLINES FOR CLARIFICATION. CONCRETE WORKS 1. ALL FOOTINGS TO EXTEND TO UNDISTURBED SOIL OR STRUCTURAL FILL. MINIMUM SOIL CAPACITY OF 140 KPA. 2. ALL FOOTINGS FORMWORK TO BE INSPECTED PRIOR TO POURING. 3. CONCRETE MATERIALS AND METHODS OF CONSTRUCTION IN ACCORDANCE WITH CAN3-A23.1: MINIMUM CONCRETE STRENGTH AT 28 DAYS IS 20 MPA. 4. CONCRETE PROTECTION FOR REINFORCEMENT SHALL BE 75 MM FOR FOOTINGS. 5. ALL REINFORCING BARS SHALL BE DEFORMED AS PER CSA G30.18 WITH A YIELD STRENGTH OF 400 MPA. STEEL NOTES 1. STEELWORKS IN ACCORDANCE WITH CAN-S16.4-M94. 2. MAKE FIELD CONNECTIONS WITH A325 GRADE BOLTS. 3. SHOP PAINT PRIMER TO RED OR GREY OXIDE TO CISC CPMA 1-73A. 4. ALL WELDING SHALL CONFORM TO THE REQUIREMENTS OF CSA W59 LATEST EDITION, WELDED STEEL CONSTRUCTION. THE CONTRACTOR SHALL BE CERTIFIED UNDER THE REQUIREMENTS OF CSA W47.1 LATEST EDITIONS. ELECTRODES SHALL CONFORM TO THE REQUIREMENTS OF CSA W48.1. 1 W"ocl Am ht3h ltrJ,:s'trial Stte"t 4' hqh O-$.[i"e 10000 mm 10000 mm rjdempsey Highlight rjdempsey Typewriter This is a tie joist, not a beam