stair c plan 1 stair c section hh 2 stair c elevation 3 stair c section ii 4

2014
Copyright ________
EDWIN
BRUCE
A S S O C I A T E S.
All designs drawings, and written material
appearing herein, are protected and
constitute original and unpublished work of
the Architect and may not be copied,
revised, re-used or disclosed without the
written consent of the Architect. Equipment
manufactured by others is excluded.
Drawings and specifications are instruments
of architectural service, and shall remain the
property of the Architect. Use is restricted to
the site for which they were prepared.
MIN. CLEARANCE
AT TRIM
1 1/2" MIN.
EXISTING BUILDING TRIM
3'-2"
1 1/2" DIA. NEW HANDRAILS ATTACHED TO TOP
OF EXISTING HAND RAILS,
TOP OF NEW HANDRAILS TO BE AT HT. 34"-38"
ABOVE TOP OF STAIR NOSINGS,
TYP.
REMOVE EXISTING WOOD RAILING
AND WALL BRACKETS.
2
EXISTING HANDRAILS @ HT. 33 1/2"
3
1 6 2 5 The Alameda Suite 6 1 0 San Jose California 9 5 1 2 6
T: 408.995.5701 F: 408.995.5022 website: www.edwinbruce.com
A-6
NOTE: OPEN RISERS ARE NOT PERMITTED
PER CBC 11B-504.3.
SEE NEW RISER DETAILS.
3'-2"
2
CODE: 34" - 38"
2'-10"
EXISTING STEEL GUARDRAIL
AT 42" ABOVE FLOOR LEVEL
A-6
A-6
MIN. CLEARANCE
AT TRIM
CODE: 34" - 38"
THE HANDGRIP PORTION OF HANDRAILS SHALL
HAVE A SMOOTH SURFACE WITH NO SHARP
CORNERS. EDGES SHALL HAVE A MIN. RADIUS
OF 1/8". HANDRAILS SHALL NOT ROTATE WITHIN
THEIR FITTINGS.
3'-0"
3'-0"
1'-2"
TREAD
3'-0"
2'-11"
CODE: 34" - 38"
2'-2"
6 1/4"
2'-11"
EXISTING 3 1/2" x 3 1/2" POSTS
EXTENSION BEYOND NOSING OF LAST
RISER IS WIDTH OF TREAD + 12" MIN.
TO START OF RADIUS. RETURN RAILING
TO WALL.
CORE DRILL EXISTING CONCRETE
FOR NEW 1 1/2" DIA. STEEL POST.
SET WITH NON-SHRINK GROUT,
TYP.
C SECTION H-H
2 STAIR
SCALE = 1/2" = 1'-0"
C ELEVATION
3 STAIR
SCALE = 1/2" = 1'-0"
NOTE: EXISTING STAIRS HAVE REQUIRED CONTRASTING
STRIPE. VERIFY IN FIELD AND CORRECT TO CODE
REQUIREMENTS IF THEY DO NOT HAVE MIN. 2" TO MAX.
4" WIDTH, PLACED PARALLEL TO AND NOT MORE THAN
1" BACK FROM NOSING.
THE STRIPE SHALL EXTEND THE FULL WIDTH OF THE
STEP OR UPPER APPROACH AND SHALL BE OF
MATERIAL THAT IS AS SLIP RESISTANT AS THE OTHER
TREADS OF THE STAIR.
3
A-6
REMOVE EXISTING STEEL RAILINGS
1'-0" MIN.
2'-2"
1'-0" MIN.
/2"
11
R.
CL
EXISTING 3 1/2" x 3 1/2" POSTS
MIN
.
UP
FIRST FLOOR
EXTENSION BEYOND NOSING OF LAST
RISER IS WIDTH OF TREAD + 12" MIN.
TO START OF RADIUS
12" MIN. EXTENSION BEYOND
NOSING OF FIRST RISER TO START
OF RADIUS
1 1/2" DIA. NEW STEEL HANDRAILS ATTACHED TO
TOP OF EXISTING HAND RAILS,
TOP OF NEW HANDRAILS TO BE AT HT. 34"-38"
ABOVE TOP OF STAIR NOSINGS,
TYP.
EXISTING 3 1/2" x 3 1/2" POSTS
EXISTING HANDRAILS @ HT. 33 1/2"
EXTENSION BEYOND NOSING OF LAST
RISER IS WIDTH OF TREAD + 12" MIN.
TO START OF RADIUS
2'-9 1/2"
2'-2"
1 1/2" DIA. NEW STEEL HANDRAILS ATTACHED TO TOP
OF EXISTING HAND RAILS,
TOP OF NEW HANDRAILS TO BE AT HT. 34"-38" ABOVE
TOP OF STAIR NOSINGS,
TYP.
CODE: 34" - 38"
REMOVE EXISTING STEEL RAILING
38"
EXISTING WOOD HANDRAILS @ HT. 32"
1
A-6
1855 SAN MIGUEL DR.,
WALNUT CREEK, CALIFORNIA 94596
4
A-6
2'-2"
HILLTOP PROFESSIONAL BUILDING
9 1/2"
2'-11"
SECOND FLOOR
CODE: 34" - 38"
I
3'-2"
6'-0"
UP
I
1 1/2" CLR. MIN.
H
H
1'-2"
EXISTING STEEL GUARDRAIL
AT 42" ABOVE FLOOR LEVEL
2'-2"
3'-0"
6 1/4"
TREAD
C PLAN
1 STAIR
SCALE = 1/2" = 1'-0"
N
DATE
C SECTION I-I
4 STAIR
SCALE = 1/2" = 1'-0"
08.15.14
DRAWN
GG/JO
JOB NO
1321
A-4.0