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# Phase 6 Drawings (Drgs 1-14)

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### Phase 6 Drawings (Drgs 1-14)

1. 1. PHASE 6 DRAWING (D1)
2. 2. 1. AXED SEMI CIRCULAR ARCH C L 74 S.P 327 910 327 1:10 DRAW TO SCALE 1:5
3. 3. NOTES TO CALCULATE THE LENGTH OF THE ARC USE THE FOLLOWING FORMULA 3.14 X DIA OF EXTRADOS ÷ 2 THEN DIVIDE YOUR ANSWER BY APPROX 75MM TO OBTAIN SPACINGS. POSITION THE KEY BRICK FIRST
4. 4. 2. AXED SEGMENTAL ARCH A A 4 BRICKS SECTION AA 60° ELEVATION 1:10 DRAW TO SCALE 1:5
5. 5. NOTES THE VOUSSOIRS CAN BE MARKED ON THE EXTRADOS TO THE REQUIRED SPACING ENSURE THE KEY BRICK IS CENTRED OVER THE MIDDLE OF THE SPRINGING LINE AND THAT THERE IS AN ODD NUMBER OF VOUSSOIRS IN THE ARCH. IN ORDER TO ENSURE ALL THE VOUSSOIRS ARE RADIATED CORRECTLY, THEY ARE ALL RANGED FROM THE SPACINGS ON THE EXTRADOS TO THE STRIKING POINT. TO CALCULATE THE LENGTH OF THE ARC THE FOLLOWING FORMULA MAY BE USED 3.14 X DIAMETER OF THE CIRCLE THE ARC IS A PART OF ÷ 360° X ANGLE CREATED AT STRIKING POINT (60º)
6. 6. 3. AXED BULLS EYE ARCH VERT. C L HORIZ. C L DIA. 1340 DRAW TO SCALE 1:5
7. 7. NOTES VERT. C L 73 73 73 215 1340 HORIZ. C L 910 TO CALCULATE THE LENGTH OF THE EXTRADOS AND THE SPACINGS TO BE MARKED ON THE EXTRADOS USE THE FOLLOWING DRAW THE HORIZONTAL CENTRE LINE 910MM WIDE FORMULA......... 3.14 X Ø = LENGTH OF CIRCLE (EXTRADOS) DRAW A VERTICAL CENTRE LINE THROUGH THE SO 3.14 X 1340 = 4208MM THE EXTRADOS IS 4208 LONG SO DIVIDE IT MIDDLE OF THIS LINE. PLACING THE POINT OF THE BY 75 (BRICK PLUS A JOINT) TO GET SPACINGS. 4208 ÷ 75 =56.1 COMPASS AT THE INTERSECTION OF BOTH LINES BRICKS SO WE ROUND THIS UP TO THE NEAREST EVEN NUMBER OPEN THE PENCIL 455MM AND DRAW A CIRCLE. THIS (BECAUSE THERE WILL BE AN ODD NUMBER OF BRICKS BETWEEN IS NOW THE INTRADOS. TO DRAW THE EXTRADOS EACH KEY BRICK TO ALLOW FOR BONDING) WHICH IS 58 BRICKS. OPEN THE COMPASS A FURTHER 215MM AND DRAW TO FIND THE SPACINGS WE DIVIDE 4208 BY 58 = 72.5MM SPACINGS. ANOTHER CIRCLE. THE KEY BRICKS MUST BE POSITIONED FIRST AND CENTRED OVER BOTH CENTRE LINES AS SHOWN STEP 1 STEP 2
8. 8. 73 73 73 DRAW IN THE JOINTS ENSURING THE ARCH BONDS OUT EACH OF THE MARKED CORRECTLY & HAS AN ODD NUMBER OF VOUSSOIRS SPACINGS ON THE EXTRADOS BETWEEN EACH KEY BRICK CAN NOW BE JOINED TO THE STRIKING POINT STEP 3 STEP 4
9. 9. 4. CAMBER ARCH 112.5 112.5 300 910 DRAW TO SCALE 1:5 1:10
10. 10. NOTES C L C L 300 SPR. LINE SPR. LINE STEP 1 STEP 2
11. 11. C C L 112 L 112 SETTING OUT LINE STRIKING STRIKING POINT POINT STEP 3 STEP 4
12. 12. STEP 5 C 63 L SETTING OUT LINE 41° Ø3000 REMEMBER: TO CALCULATE THE LENGTH OF AN ARC USE THE FOLLOWING FORMULA........... 3.14 X Ø OF THE CIRCLE ÷ 360° X ANGLE CREATED FROM STRIKING PT. TO SPRINGING POINTS MARKING OUT THE VOUSSOIRS
13. 13. STEP 6 100 300 200 NOTE 9MM CAMBER: 1MM RISE FOR EVERY 100MM SPAN
14. 14. 5. EQUILATERAL GOTHIC ARCH DRAW TO SCALE 1:10
15. 15. C L STRIKING POINT STRIKING POINT 910 STEP 1 DRAW THE SPAN OF THE ARCH AND A VERTICAL CENTRE LINE THROUGH THIS LINE. THE TWO SPRINGING POINTS OF THE ARCH ARE ALSO THE STRIKING POINTS.
16. 16. C L STRIKING POINT STRIKING POINT 910 910 STEP 2 TO DRAW THE INTRADOS - PLACE THE POINT OF THE COMPASS STEP 3 ON EACH OF THE STRIKING POINTS AND CREATE AN ARC UP TO THE CENTRE LINE. TO DRAW THE EXTRADOS - EXTEND THE COMPASS BY 215 MM OR THE REQUIRED FACE DEPTH OF THE ARCH - PLACE THE POINT OF THE COMPASS ON EACH OF THE STRIKING POINTS AND CREATE AN ARC UP TO THE CENTRE LINE.
17. 17. DIA. 2250 66° 215 910 STEP 4 TO CALCULATE THE LENGHT OF THE EXTRADOS USE THE FOLLOWING FOMULA. 3.14 X Ø 360° X ANGLE CREATED AT THE STRIKING POINT
18. 18. 68 68 910 910 STEP 5 STEP 6 3.14 X 2250 360° X 66° = 1295 EACH OF THE SPACINGS MARKED ON THE EXTRADOS CAN NOW BE RADIATED BACK TO THE STRIKING POINT LENGTH OF EXTRADOS = 1295 NOW DIVIDE THIS FIGURE BY APPROX 70MM THIS EQUALS 19 VOUSSOIRS NOW DIVIDE 1295 BY 19 TO ESTABLISH THE VOUSSOIR SPACINGS - THIS = SPACINGS OF 68MM
19. 19. STEP 7 BOND OUT THE ARCH ON THE FACE
20. 20. 6. LANCET GOTHIC ARCH DRAW TO SCALE 1:10
21. 21. C L C L 975 STRIKING POINT STRIKING POINT 910 910 STEP 2 STEP 1 TO ESTABLISH THE STRIKING POINTS - MARK THE RISE ON THE CENTRE LINE (975 IN THIS CASE) DRAW THE SPAN OF THE ARCH - EXTENDING THE SPRINGING LINE PAST THE JAMBS ON BOTH SIDES. JOIN THIS POINT TO ONE OF THE SPRINGING POINTS AND THEN BISECT THIS LINE DRAW A VERTICAL CENTRE LINE THROUGH THE SPRINGING JOIN THE TWO POINTS (X's) CREATED WHEN BISECTING LINE. THE LINE UNTIL IT MEETS THE SPRINGING LINE THE RISE OF THE LANCET GOTHIC IS ALWAYS GREATER THAN THIS IS NOW ONE OF THE STRIKING POINTS - THE OTHER ITS SPAN STRIKING POINT CAN BE EXTABLISHED ON THE OTHER SIDE OF THE ARCH
22. 22. C L STRIKING POINT STRIKING POINT 910 STEP 3 TO DRAW THE INTRADOS - PLACE THE POINT OF THE COMPASS ON EACH OF THE STRIKING POINTS AND CREATE AN ARC UP TO THE CENTRE LINE. TO DRAW THE EXTRADOS - EXTEND THE COMPASS BY 215 MM OR THE REQUIRED FACE DEPTH OF THE ARCH - PLACE THE POINT OF THE COMPASS ON EACH OF THE STRIKING POINTS AND CREATE AN ARC UP TO THE CENTRE LINE.
23. 23. C L Ø2974 57° STRIKING POINT 910 STEP 4 TO CALCULATE THE LENGHT OF THE EXTRADOS USE THE FOLLOWING FOMULA. 3.14 X Ø 360° X ANGLE CREATED AT THE STRIKING POINT
24. 24. C L 70 STRIKING POINT 910 STEP 5 STEP 6 3.14 X 2974 360° X 57° = 1479 LENGTH OF EXTRADOS = 1479 NOW DIVIDE THIS FIGURE BY APPROX 70MM BOND OUT THE ARCH ON THE FACE THIS EQUALS 21 VOUSSOIRS NOW DIVIDE 1479 BY 21 TO ESTABLISH THE VOUSSOIR SPACINGS - THIS = SPACINGS OF 70MM EACH OF THE SPACINGS ARE MARKED ON THE EXTRADOS AND CAN NOW BE RADIATED BACK TO THE STRIKING POINT
25. 25. 7. DROP GOTHIC ARCH 910 DRAW TO SCALE 1:10
26. 26. C L C L RISE 600 RISE SP 1 SP 2 600 910 910 STEP 2 TO ESTABLISH THE STRIKING POINTS - MARK THE RISE ON THE CENTRE LINE (600 IN THIS CASE) STEP 1 JOIN THIS POINT TO ONE OF THE SPRINGING POINTS AND DRAW THE SPAN OF THE ARCH TO THE REQUIRED DIMENSION. THEN BISECT THIS LINE DRAW A VERTICAL CENTRE LINE THROUGH THE SPRINGING JOIN THE TWO POINTS (X's) CREATED WHEN BISECTING LINE. THE LINE UNTIL IT MEETS THE SPRINGING LINE THE RISE OF THE DROP GOTHIC IS ALWAYS LESS THAN ITS THIS IS NOW ONE OF THE STRIKING POINTS - THE OTHER SPAN STRIKING POINT CAN BE EXTABLISHED ON THE OTHER SIDE OF THE ARCH
27. 27. C L RISE 600 SP 1 SP 2 910 STEP 3 TO DRAW THE INTRADOS - PLACE THE POINT OF THE COMPASS ON EACH OF THE STRIKING POINTS AND CREATE AN ARC UP TO THE CENTRE LINE. TO DRAW THE EXTRADOS - EXTEND THE COMPASS BY 215 MM OR THE REQUIRED FACE DEPTH OF THE ARCH - PLACE THE POINT OF THE COMPASS ON EACH OF THE STRIKING POINTS AND CREATE AN ARC UP TO THE CENTRE LINE.
28. 28. C L 78° SP 1 Ø1676 910 STEP 4 TO CALCULATE THE LENGHT OF THE EXTRADOS USE THE FOLLOWING FOMULA. 3.14 X Ø 360° X ANGLE CREATED AT THE STRIKING POINT
29. 29. C L 71 SP 1 SP 2 910 910 STEP 5 3.14 X 1676 360° X 78° = 1140 LENGTH OF EXTRADOS = 1140 NOW DIVIDE THIS FIGURE BY APPROX 70MM STEP 6 THIS EQUALS 16 VOUSSOIRS NOW DIVIDE 1140 BY 16 TO ESTABLISH THE VOUSSOIR SPACINGS - THIS = SPACINGS OF 71MM BOND OUT THE ARCH ON THE FACE EACH OF THE SPACINGS ARE MARKED ON THE EXTRADOS AND CAN NOW BE RADIATED BACK TO THE STRIKING POINT
30. 30. 8. SEMI ELLIPTICAL ARCH / 3 CENTRED ARCH 900 DRAW TO SCALE 1:10
31. 31. C L 100 100 RISE EQUALS ONE THIRD OF THE SPAN SP 2 100 SP 3 TWO TWO THIRDS THIRDS OF RISE SP 1 OF RISE 900 STEP 1 DRAW THE SPAN TO GIVEN DIMENSION THEN MARK THE RISE (WHICH IS ONE THIRD OF THE SPAN I.E. 300MM IN THIS CASE)ONTO THE CENTRE LINE DIVIDE THE RISE INTO THREE EQUAL SEGMENTS (I.E. 100MM DIVISIONS) TO ESTABLISH STRIKING POINT 2 & 3 - MEASURE A DISTANCE FROM THE SPRINGING POINT TOWARDS THE CENTRE LINE THAT IS EQUAL TO TWO THIRDS OF THE RISE (I.E. 200MM IN THIS CASE) THESE POINTS ARE ARE NOW STRIKING POINT 2 & 3 TO ESTABLISH STRIKING POINT 1 - JOIN A LINE FROM THE FIRST 100MM DIVISION ON THE RISE TO STRIKING POINT 2 AND BISECT THIS LINE - WHERE THIS LINE MEETS THE CENTRE LINE IS STRIKING POINT 1.
32. 32. C L COMMON NORMAL 1 COMMON NORMAL 2 SP 2 SP 3 SP 1 900 STEP 2 JOIN STRIKING POINT 1 TO STRIKING POINT 2 & 3 AND EXTEND THESE LINES WELL UPWARDS. THESE LINES ARE THE COMMON NORMALS - THEY DICIDE THE ARCH INTO 3 SEGMENTS
33. 33. C L COMMON NORMAL 1 COMMON NORMAL 2 SP 2 SP 3 327.5 327.5 SP 1 900 STEP 3 TO DRAW THE INTRADOS OF THE LOWER THIRD (HAUNCH) OF THE ARCH PLACE THE COMPASS ONTO STRIKING POINT 2 AND OPEN THE PENCIL TO THE SPRINGING POINT - SCRIBE AN ARC UNTIL IT MEETS COMMON NORMAL 1. TO DRAW THE EXTRADOS SIMPLY OPEN THE PENCIL BY THE REQUIRED FACE DEPTH OF THE ARCH ( 327.5MM IN THIS CASE) AND EXTEND TO COMMON NORMAL 1. REPEAT THE PROCESS ON THE OPPOSITE SIDE OF THE ARCH.
34. 34. COMMON NORMAL 1 COMMON NORMAL 2 300 SP 2 SP 3 327.5 327.5 SP 1 900 STEP 4 TO DRAW THE INTRADOS ON THE UPPER SECTION OF THE ARCH - PLACE THE COMPASS ONTO STRIKING POINT 1 AND OPEN THE PENCIL TO THE THE TOP OF THE RISE - SCRIBE AN ARC EITHER SIDE OF THE CENTRE LINE UNTIL IT MEETS COMMON NORMAL 1 & 2 TO DRAW THE EXTRADOS SIMPLY OPEN THE PENCIL BY THE REQUIRED FACE DEPTH OF THE ARCH ( 327.5MM IN THIS CASE) AND SCRIBE AN ARC UNTIL IT MEETS COMMON NORMAL 1 & 2.
35. 35. L COMMON NORMAL 1 COMMON NORMAL 2 71 71 46° SP 2 SP 3 327.5 327.5 Ø1054 900 STEP 5 TO CALCULATE THE VOUSSOIR SPACING IN THE LOWER THIRD THE FOLLOWING FORMULA MAY BE USED. 3.14 X Ø 360° X ANGLE CREATED AT THE STRIKING POINT 3.14 X 1054 360° X 46° = 423 LENGTH OF EXTRADOS = 423 - NOW DIVIDE THIS FIGURE BY APPROX 70MM - THIS EQUALS 6 VOUSSOIRS - DIVIDE 423 BY 6 TO ESTABLISH THE VOUSSOIR SPACINGS - THIS = SPACINGS OF 71MM EACH OF THE SPACINGS ARE MARKED ON THE EXTRADOS AND CAN NOW BE RADIATED BACK TO THE STRIKING POINT 2 THE VOUSSOIRS MAY NOW ALSO BE MARKED OUT ON THE OPPOSITE HAUNCH WITH THE SAME SPACINGS & RADIATED BACK TO STRIKING POINT 3
36. 36. C L 71 COMMON NORMAL 1 COMMON NORMAL 2 87° 327.5 327.5 SP 1 Ø1779 900 STEP 6 TO CALCULATE THE VOUSSOIR SPACING IN THE UPPER THIRD OF THE ARCH THE FOLLOWING FORMULA MAY BE USED. 3.14 X Ø 360° X ANGLE CREATED AT THE STRIKING POINT 3.14 X 1779 360° X 87° = 1350 LENGTH OF EXTRADOS = 1350 - NOW DIVIDE THIS FIGURE BY APPROX 70MM - THIS EQUALS 19 VOUSSOIRS - DIVIDE 1350 BY 19 TO ESTABLISH THE VOUSSOIR SPACINGS - THIS = SPACINGS OF 71MM EACH OF THE SPACINGS ARE MARKED ON THE EXTRADOS AND CAN NOW BE RADIATED BACK TO THE STRIKING POINT 1
37. 37. COMMON NORMAL 1 COMMON NORMAL 2 SP 2 SP 3 327.5 327.5 SP 1 900 STEP 7 ENSURE WHEN THE FULL ARCH SPACINGS ARE MARKED OUT THAT THERE IS AN EQUAL NUMBER OF VOUSSOIRS IN BOH OF THE LOWER SECTIONS & THAT THERE IS A KEY BRICK IN THE UPPER SECTION
38. 38. 900 STEP 8 BOND OUT THE ARCH ON THE FACE BY OFFSETTING THE INTRADOS BY 112.5MM & 215MM TO CREAT THE JOINTS
39. 39. 9. TUMBLING – IN A 975 25 3 BRICKS 2.5 BRICKS 3 BRICKS A 337.5 215 ELEVATION END VIEW AA DRAW TO SCALE 1:10
40. 40. 10. RAT TRAP BOND 112.5 ISOMETRIC VIEW DRAW TO SCALE 1:5 1:5
41. 41. 11. GLASS BLOCK PANEL 810 A 215 PRE STRESSED CONCRETE LINTEL 10MM EXPANSION JOINT FILLED WITH EXPANSION FIBRE AND SEALED WITH ELASTMERIC SEALANT 6MM HORIZONTAL 810 REINFORCING ROD HOUSED INTO JAMBS SLIDING JOINT BITUMEN PAINT UNDER GLASS BLOCK MORTAR A ELEVATION SECTION AA 10MM EXPANSION JOINT 6MM VERTICAL 6MM REINFORCING ROD FILLED WITH EXPANSION REINFORCING ROD HOUSED INTO 8MM BORE FIBRE AND SEALED WITH WITH 2OMM ELASTMERIC ELASTMERIC SEALANT SEALANT AT END OF ROD PLAN 1:10 DRAW TO SCALE 1:10
42. 42. 12. BRICK RETAINING WALL CONC. FEATHER EDGE COPING D.P.C 900 BRICKS TO BE LAID IN 1:3 MORTAR MIX. 1200 VERTICAL MOVEMENT JOINTS TO BE POSITIONED AT NOT MORE THAN 15M CENTRES G.L 1800 MAX. BACK OF WALL TO BE COATED WITH BITUMEN OR LINED WITH HEAVY DUTY POLYTHENE RUBBLE FILLING 100MM PVC PIPE TO ACT 525 AS WEEP HOLE. PLACED @ 1800MM CENTRES G.L 300 450 225 900 1:10 DRAW TO SCALE 1:10
43. 43. 13. BACKDROP MANHOLE 600MM X 600MM X 60MM CAST IRON COVER & FRAME SURROUNDED WITH MORTAR FILLET GROUND LEVEL LEVER LOCKING STOPPER ATTACHED TO BLOCKWORK WITH CHAIN & STAPLE 100MM PRE CAST CONC. SLAB FLOW 90° SLOW BRANCH 215MM BLOCKWORK 2200 100MMØ DROP PIPE GALV STEP IRONS SPACED 450MM VERTICALLY FROM COVER & STAGGERED AT 230C/C 150MM MIN CONCRETE 1200 ENCASING HALF CHANNEL 90° SLOW BEND BENCHING SEWER CONC RAFT FOUND. 1:10 DRAW TO SCALE 1:10
44. 44. 14. EXTERNAL TANKING GROUND FLOOR LEVEL D.P.C G.L 150 IN SULATION W ITH VAPOUR BARRIER ON W ARM SIDE REINFORCED CONC RETAINING W ALL 20M M VERTICAL ASPHALT TANKIN G OR PROPRIETARY ASHESIVE DPM STONE BACKFILL TO PREVENT W ATER BUILDUP 2400 SOLID BLOCKW ORK TO PROTECT M EM BRANE A NGLE FILLET FLOOR SCREED 65MM M IN INSULATION PERFORA TED DRAIN 50M M PROTECTIVE SCREED W RAPPED IN GEOTEXTILE FILTER CLOTH TO TAK E 30MM HORIZ ONTAL ASPHALT AW AY GROUND W ATER. TANKING OR PROPRIETARY ASHESIVE DPM SECTION THROUGH A BASEM EN T W ITH EXTERNAL TAN KING 1:10 DRAW TO SCALE 1:10