Phase 6 Drawings (Drgs 1-14)

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Text of Phase 6 Drawings (Drgs 1-14)

  • 1. PHASE 6 DRAWING (D1)

2. 1. AXED SEMI CIRCULAR ARCHC L 74S.P327910327 1:10DRAW TO SCALE 1:5 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. 2. AXED SEGMENTAL ARCHA A 4 BRICKSSECTION AA 60ELEVATION 1:10 DRAW TO SCALE 1:5 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 THATTHERE IS AN ODD NUMBER OF VOUSSOIRS IN THE ARCH. IN ORDER TO ENSURE ALL THE VOUSSOIRS ARE RADIATED CORRECTLY, THEY ARE ALL RANGEDFROM 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 STRIKINGPOINT (60) 6. 3. AXED BULLS EYE ARCHVERT. C LHORIZ. C L DIA. 1340 DRAW TO SCALE 1:5 7. NOTES VERT. CL7373 73 2151340 HORIZ. CL 910TO CALCULATE THE LENGTH OF THE EXTRADOS AND THE SPACINGSTO BE MARKED ON THE EXTRADOS USE THE FOLLOWING DRAW THE HORIZONTAL CENTRE LINE 910MM WIDE FORMULA......... 3.14 X = LENGTH OF CIRCLE (EXTRADOS) DRAW A VERTICAL CENTRE LINE THROUGH THESO 3.14 X 1340 = 4208MM THE EXTRADOS IS 4208 LONG SO DIVIDE IT MIDDLE OF THIS LINE. PLACING THE POINT OF THEBY 75 (BRICK PLUS A JOINT) TO GET SPACINGS. 4208 75 =56.1 COMPASS AT THE INTERSECTION OF BOTH LINESBRICKS 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 EXTRADOSEACH KEY BRICK TO ALLOW FOR BONDING) WHICH IS 58 BRICKS. OPEN THE COMPASS A FURTHER 215MM AND DRAWTO FIND THE SPACINGS WE DIVIDE 4208 BY 58 = 72.5MM SPACINGS. ANOTHER CIRCLE.THE KEY BRICKS MUST BE POSITIONED FIRST AND CENTRED OVERBOTH CENTRE LINES AS SHOWN STEP 1STEP 2 8. 73 7373 DRAW IN THE JOINTS ENSURING THE ARCH BONDS OUT EACH OF THE MARKEDCORRECTLY & HAS AN ODD NUMBER OF VOUSSOIRS SPACINGS ON THE EXTRADOSBETWEEN EACH KEY BRICK CAN NOW BE JOINED TO THE STRIKING POINTSTEP 3STEP 4 9. 4. CAMBER ARCH 112.5112.5300910DRAW TO SCALE 1:5 1:10 10. NOTESC LCL300SPR. LINE SPR. LINE STEP 1 STEP 2 11. CC L 112L 112 SETTING OUT LINE STRIKINGSTRIKING POINTPOINT STEP 3 STEP 4 12. STEP 5C63 LSETTING OUT LINE41 3000REMEMBER: TO CALCULATE THE LENGTH OF AN ARC USE THE FOLLOWING FORMULA........... 3.14 X OF THE CIRCLE 360 X ANGLE CREATED FROM STRIKING PT. TO SPRINGING POINTSMARKING OUT THE VOUSSOIRS 13. STEP 6 100300 200 NOTE 9MM CAMBER: 1MM RISE FOR EVERY 100MM SPAN 14. 5. EQUILATERAL GOTHIC ARCH DRAW TO SCALE 1:10 15. CL STRIKING POINT STRIKING POINT 910STEP 1DRAW THE SPAN OF THE ARCH AND A VERTICAL CENTRE LINETHROUGH THIS LINE.THE TWO SPRINGING POINTS OF THE ARCH ARE ALSO THESTRIKING POINTS. 16. CL STRIKING POINTSTRIKING POINT 910910 STEP 2 TO DRAW THE INTRADOS - PLACE THE POINT OF THE COMPASSSTEP 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 THEREQUIRED FACE DEPTH OF THE ARCH - PLACE THE POINT OF THECOMPASS ON EACH OF THE STRIKING POINTS AND CREATE AN ARC UP TOTHE CENTRE LINE. 17. DIA. 2250 66215 910 STEP 4 TO CALCULATE THE LENGHT OF THE EXTRADOS USE THE FOLLOWING FOMULA.3.14 X 360 X ANGLE CREATED AT THE STRIKING POINT 18. 68 68 910910STEP 5STEP 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. STEP 7 BOND OUT THE ARCH ON THE FACE 20. 6. LANCET GOTHIC ARCH DRAW TO SCALE 1:10 21. C LCL 975STRIKING POINT STRIKING POINT 910 910 STEP 2STEP 1TO 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 ANDTHEN BISECT THIS LINE DRAW A VERTICAL CENTRE LINE THROUGH THE SPRINGINGJOIN 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 THANTHIS IS NOW ONE OF THE STRIKING POINTS - THE OTHER ITS SPANSTRIKING POINT CAN BE EXTABLISHED ON THE OTHER SIDE OF THE ARCH 22. CL STRIKING POINTSTRIKING POINT910STEP 3TO DRAW THE INTRADOS - PLACE THE POINT OF THE COMPASSON EACH OF THE STRIKING POINTS AND CREATE AN ARC UP TOTHE CENTRE LINE.TO DRAW THE EXTRADOS - EXTEND THE COMPASS BY 215 MMOR THE REQUIRED FACE DEPTH OF THE ARCH - PLACE THEPOINT OF THE COMPASS ON EACH OF THE STRIKING POINTSAND CREATE AN ARC UP TO THE CENTRE LINE. 23. C L 2974 57STRIKING POINT 910STEP 4TO CALCULATE THE LENGHT OF THE EXTRADOS USE THE FOLLOWINGFOMULA. 3.14 X 360 X ANGLE CREATED AT THE STRIKING POINT 24. CL70 STRIKING POINT 910 STEP 5 STEP 6 3.14 X 2974360 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. 7. DROP GOTHIC ARCH 910 DRAW TO SCALE 1:10 26. C L CL RISE 600 RISESP 1 SP 2600910 910STEP 2TO ESTABLISH THE STRIKING POINTS - MARK THE RISEON THE CENTRE LINE (600 IN THIS CASE) STEP 1JOIN THIS POINT TO ONE OF THE SPRINGING POINTS AND DRAW THE SPAN OF THE ARCH TO THE REQUIRED DIMENSION. THEN BISECT THIS LINEDRAW A VERTICAL CENTRE LINE THROUGH THE SPRINGINGJOIN THE TWO POINTS (X's) CREATED WHEN BISECTING LINE.THE LINE UNTIL IT MEETS THE SPRINGING LINETHE RISE OF THE DROP GOTHIC IS ALWAYS LESS THAN ITSTHIS IS NOW ONE OF THE STRIKING POINTS - THE OTHER SPAN STRIKING POINT CAN BE EXTABLISHED ON THEOTHER SIDE OF THE ARCH 27. CLRISE600SP 1 SP 2910 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. C L 78 SP 11676910 STEP 4 TO CALCULATE THE LENGHT OF THE EXTRADOS USE THE FOLLOWING FOMULA.3.14 X 360 X ANGLE CREATED AT THE STRIKING POINT 29. C L 71SP 1 SP 2 910 910STEP 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. 8. SEMI ELLIPTICAL ARCH / 3 CENTRED ARCH900 DRAW TO SCALE 1:10 31. C L 100 100RISE EQUALS ONETHIRD OF THE SPAN SP 2100 SP 3TWOTWOTHIRDS THIRDSOF RISESP 1OF 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. CLCOMMON NORMAL 1COMMON NORMAL 2 SP 2SP 3 SP 1 900 STEP 2JOIN 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. C LCOMMON NORMAL 1COMMON NORMAL 2 SP 2 SP 3327.5 327.5SP 1900 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. COMMON NORMAL 1COMMON NORMAL 2 300 SP 2SP 3 327.5 327.5 SP 1900 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. L COMMON NORMAL 1COMMON NORMAL 2717146SP 2SP 3 327.5 327.5 1054 900 STEP 5 TO CALCULATE THE VOUSSOIR SPACING IN THE LOWER THIRD THE FOLLOWING FORMULA MAY BE USED. 3.14 X 360 X ANGLE CREATED AT THE STRIKING POINT 3.14 X 1054360 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. C L 71 COMMON NORMAL 1 COMMON NORMAL 2 87327.5327.5SP 11779900 STEP 6 TO CALCULATE THE VOUSSOIR SPACING IN THE UPPER THIRD OF THE ARCH THE FOLLOWING FORMULA MAY BE USED. 3.14 X 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.