THOMSON Construction Master Pro, Workbook

Page 1: ...S a m p l e...

Page 2: ...PTER 1 Scaled Distances and Areas 3 CHAPTER 2 Excavation Fill and Grade Lines 19 PART B FOOTINGS SLABS AND WALLS 29 CHAPTER 3 Footings and Slabs 31 CHAPTER 4 Walls 41 PART C FRAMING 49 CHAPTER 5 Walls...

Page 3: ...e incline of such rafters may be specified several different ways using the quan tities shown in Figure 6 1 The slope of a rafter also called the pitch ratio is a decimal value that results from divid...

Page 4: ...on KEYSTROKE DISPLAY Enter the data for rise and run as before 5 f 4 i r RISE 5 FEET 4 INCH 1 4 f 2 i R RUN 14 FEET 2 INCH d DIAG 15 FEET 1 5 8 INCH d PLMB 20 63 d LEVL 69 37 Using the capabilities bu...

Page 5: ...rate cases 2 and 3 respectively EXAMPLE 6 3 Calculate the run length plumb angle and level angle for a common rafter having the following characteristics a Pitch of 5 1 2 rise of 6 4 b Pitch of 30 5 r...

Page 6: ...ly slightly from that of Example 6 3 8 i p PTCH 8 INCH 1 4 f 6 i R RUN 14 FEET 6 INCH r RISE 9 FEET 8 INCHES d DIAG 17 FEET 5 1 8 INCH d PLMB 33 69 d LEVL 56 31 b Similarly 2 6 6 p PTCH 26 60 1 2 f 4...

Page 7: ...Valley Valley Hip Hip Ridge Figure 6 3 Not to scale A conventional or regular roof contains common rafters having the same pitch on both sides of the hip or valley irregular roofs have different pitc...

Page 8: ...ter must be cut to ensure a smooth tight fit For regular roofs the cheek angle is 45 All of these lengths and angles are readily available on your Construction Master Pro calculator Notes Construction...

Page 9: ...see why the hip rafter s plumb cut angle is always less than the plumb cut an gle for its adjoining common rafters Figure 6 5 shows a typical corner for a regular roof where the com mon rafters have...

Page 10: ...el cut and cheek cut angles for these members Solution Continuing on from the final displayed value CHK1 45 00 of Exam ple 6 5 successively pressing the j key first displays the default o c spacing of...

Page 11: ...2 FEET 1 INCH j JK 6 10 FEET 5 INCH j JK 7 8 FEET 9 INCH j JK 8 7 FEET 1 INCH j JK 9 5 FEET 5 INCH j JK 10 3 FEET 9 INCH Notes Copyright 2007 by Calculated Industries Inc and Thomson Delmar Learning C...

Page 12: ...n irregular pitch Note from the figure that the number of regular jack rafters is generally not equal to the number of irregular jack rafters and that placement of these rafters may not match or coinc...

Page 13: ...lator has a stored rafter spacing of 16 o c and then enter the irregular pitch 6 i p PTCH 6 INCH 9 f 6 i R RUN 9 FEET 6 INCH 1 6 i 5 T O C 16 INCH 8 i H Ir Pitch IPCH 8 INCH Successively pressing the...

Page 14: ...6 31 j CHK 1 36 87 j JKOC T 16 INCH j INCR 1 FEET 11 7 8 INCH j JK 1 8 FEET 7 5 8 INCH j JK 2 6 FEET 7 3 4 INCH j JK 3 4 FEET 7 7 8 INCH j JK 4 2 FEET 8 1 16 INCH j JK 5 0 FEET 8 3 16 INCH j JK 6 0 FE...

Page 15: ...are essentially just vertical jacks and may be installed with no base or atop a stud wall as shown in the figure Pitch of the roof rafters may be specified in the usual number of ways rise and run ris...

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Page 17: ...G KHLJKW RI EDVH DV IROORZV 37 1 581 7 1 2 1 8 0 6 7 1 0 5 2 1 0 5 7 1 0 5 7 1 0 5 7 1 0 5 7 1 0 5 7 1 0 5 7 1 0 5 7 1 0 6 7 1 0 5 OTES RS ULJKW E DOFXODWHG QGXVWULHV QF DQG 7KRPVRQ HOPDU HDUQLQJ RQVW...

Page 18: ...engths for a spacing of 16 o c Repeat for 24 o c P6 6 A conventional roof has a 12 pitch and an 8 run Calculate the pitch in inches length plumb and level cut angles for all hip valley rafters used on...