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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