MAINTENANCE STAIRWAY ON SLOPES UP TO 40

10

NOTES:

1. ALL DIMENSIONS ARE IN MILLIMETRES.

2. ALL STEELWORK SHALL BE HOT DIP GALVANIZED.

3. ALL STEEL PIPES SHALL COMPLY WITH BS EN 10255 (MEDIUM AND HEAVY SERIES TUBES).

4. ALL WELDS SHALL BE CHIPPED, GROUND SMOOTH, BRUSHED TO REMOVE SLAG AND PROTECTED BY TWO COATS OF ZINC RICH PAINT TO BS 4652.

DISPLAY SIGN

50 x 50 x 10 TK. GUIDE PLATES WITH 25 DIA. EYE

5. THE DESIGNER SHALL, ON A CASE BY CASE BASIS, CRITICALLY CONSIDER THE NEED FOR A LOCKABLE GATE.

6. IF A LOCKABLE GATE IS CONSIDERED NECESSARY, IT IS PREFERRED TO HAVE SOME SET BACK WITH DUE CONSIDERATION OF THE SURROUNDING TOPOGRAPHY.

7. ALL EXPOSED STEELWORK SURFACES SHALL BE TREATED AND PAINTED IN ACCORDANCE WITH THE GENERAL SPECIFICATION.

100 x 80 x 10 TK. PLATE WELDED TO FRAME

38 x 38 x 10 TK. PLATE WITH 19 DIA. EYE FOR HOLDING LOCK

125 x 50 x 10 TK. LOCKING PLATE WITH 45 x 13 SLOT

GATE AS CONNECTED TO THE TUBULAR HANDRAILING ALONG SIDE STAIRCASE

700

A

A

16 DIA. TOWER BOLT

50

50 x 610 x 5 TK. M.S. FLAT BAR

40 INTERNAL DIA. x 3.2 TK. GMS TUBULAR FRAME GATE HINGE (SEE DETAIL 'X') 30 x 5 Tk FLAT BARS

50 INTERNAL DIA. x 3.6 TK. GMS PIPES

APPROVED GALVANIZED MESH WELDED TO 30 x 5 Tk FLAT BAR

GROUND LEVEL

50 1200

300 x 300 x 400 DEEP GRADE 20 / 20 CONCRETE FOOTING

100 400

600

150

150

35 x 35 CHARACTERS IN RED

6 DIA. HOLE

LOCKABLE GATE

SCALE 1 : 20

50 x 610 x 5 TK. M.S. FLAT BAR

DISPLAY SIGN

75 350

35 x 28 CHARACTERS IN RED

,,qD,,u??? THIS ACCESS IS FOR

SLOPE MAINTENANCE ONLY

6 DIA. STAINLESS STEEL BOLT, INSULATED WASHER AND NUT

DISPLAY SIGN

SCALE 1 : 10

10 WIDE BORDER IN RED

SECTION A - A

SCALE 1 : 5

NOTES FOR DISPLAY SIGN:

1. SIGN PLATES SHALL BE CUT FROM 6 mm THICK PLATE OF ALUMINIUM OR ALUMINIUM ALLOY.

25 I.D. PIPE

20

2. PAINTING OF SIGN PLATES SHALL COMPLY WITH THE REQUIREMENTS GIVEN IN CLAUSE 12.15 OF THE GENERAL SPECIFICATION.

50 x 20 x 3 TK. BAR PACKER WELDED TO PIPE

60

3. ALUMINIUM AND GALVANIZED STEEL IN THE PRESENCE OF WATER CAN FORM GALVANIC CELLS RESULTING IN RAPID CORROSION. INSULATING STRIPS AND WASHERS ARE TO BE PROVIDED AS SHOWN ON THE DRAWINGS TO PREVENT THIS. ANY SUITABLE NON-METALLIC MATERIAL MAY BE USED FOR INSULATING STRIPS AND WASHERS.

40 I.D. x 3.2 TK. GMS TUBULAR FRAME

50 I.D. x 3.6 TK. GMS PIPE

30 DIA 3 TK. WASHER WELDED TO BAR

20 DIA BAR

DETAIL 'X'

( DETAILS OF HINGE )

SCALE 1 : 5

LOCKABLE GATE FOR MAINTENANCE STAIRWAY ON SLOPES UP TO 40

?V?u/{

4. SIGN COLOUR TO BS 5252 F (1976) : WRITING AND BORDER IN RED - CODE 04 E 53 BACKGROUND IN LIGHT GREEN - CODE 14 E 51

E D

C B A REF.

NOTE 3 AMENDED.

Original Signed 12.2014

DRAWING TITLE AMENDED. HINGE DETAILS ADDED.

Original Signed 05.2008

DRAWING TITLE AMENDED. DISPLAY SIGN AND NOTES AMENDED.

Original Signed 02.2007

MINOR AMENDMENT.

Original Signed 07.2006

NAME OF DEPARTMENT AMENDED.

Original Signed 01.2005

NEW ISSUE.

Original Signed 12.2002

REVISION

SIGNATURE DATE

CIVIL ENGINEERING AND DEVELOPMENT DEPARTMENT

SCALE AS SHOWN DRAWING NO.

DATE DEC 2002

C2508E

We Engineer Hong Kong's Development

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