BENDING
RADIUS
|
Minimum
Bending Radius for Plywood Panels*
|
|
Panel
Thickness
|
Curved
Across Grain
|
Curved
Parallel
to Grain
|
|
1/4"
|
2'-0"
|
5'-0"
|
|
3/8"
|
3'-0"
|
8'-0"
|
|
1/2"
|
6'-0"
|
12'-0"
|
|
5/8"
|
8'-0"
|
16'-0"
|
|
3/4"
|
12'-0"
|
20'-0"
|
*
Suggested by ACISP-4 for average work based on information supplied
by APA.
Laminate thin plywood sheets
to insure nexessary strangth on short radius work.
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CONCRETE
REQUIREMENT CHARTS
|
Column
Diameter in Inches
|
10
|
12
|
14
|
16
|
18
|
20
|
|
Cubic
Yards of concrete per foot of Height
|
0.0202
|
0.0297
|
0.0396
|
0.0517
|
0.0654
|
0.0808
|
|
Column
Diameter in Inches
|
22
|
24
|
30
|
36
|
42
|
48
|
|
Cubic
Yards of concrete per foot of Height
|
0.0978
|
0.1164
|
0.1818
|
0.2618
|
0.3563
|
0.4654
|
|
Concrete
Thickness in Inches
|
1
|
2
|
3
|
4
|
4.5
|
5
|
|
Square
Foot Yield per Cubic Yard
|
324
|
152
|
108
|
81
|
72
|
64.8
|
|
Concrete
Thickness in Inches
|
5.5
|
6
|
6.5
|
7
|
7.5
|
8
|
|
Square
Foot Yield per Cubic Yard
|
58.9
|
54
|
49.8
|
46.3
|
43.2
|
40.5
|
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CURB
AND GUTTER EXPANSION JOINT
ORDERING GUIDE
Use this guide
to order custom fibre expansion joint. Click here to download
an order form in PDF format. [this form can be viewed and
printed with the freeware Adobe
Acrobat Reader]
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 THE
ELEVEN HOLE PATTERN
A simple
application of the single waler system utilizes the eleven hole drilling
system as illustrated. Notice that tie holes line up whether sheets
are placed horizontally or vertically. This allows for gang drilling
of the plywood. The eleven hole pattern provides consistent 12" vertical
spacing for walers and 24" horizontal spacing for ties. Each tie covers
approximately 3 sq. ft. of form surface, staying well within the safe
working load of the system. The eleven hole drilling pattern combined
with single waler hardware and the Sansoe flat end snaptie provides
a simple, efficient forming system ideal for bank vaults, retaining
walls, foundations and many other applications.
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PLASTIC
CHAMFER STRIP
|
 |
Radius
Chamfer Strip
Type
RFN |
| Cat. No. |
"A"
dimen. |
"REF"
dimen. |
| 602 |
1/2" |
3/8" |
| 603 |
3/4" |
9/16" |
| 604 |
1" |
3/4" |
| 605 |
1-1/2" |
1-1/4" |
 |
Chamfer Strip
Type
CSN |
| Cat. No. |
"A"
dimen. |
"REF"
dimen. |
| 611 |
1/2" |
2-3/32" |
| 612 |
3/4" |
1-1/16" |
| 613 |
1" |
1-13/32" |
| 614 |
1-1/2" |
2-1/8" |
 |
Chamfer Strip
Type
CS |
| Cat. No. |
"A"
dimen. |
"REF"
dimen. |
| 621 |
1/2" |
2-3/32" |
| 622 |
3/4" |
1-1/16" |
| 623 |
1" |
1-13/32" |
| 624 |
1-1/2" |
2-1/8" |
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RADIUS
FORMING NOTES
MCS
recommends a system for radius forming involving "A" brackets, snapties,
and-to avoid filler strips-trimmed interior plywood.
|
|
Tie Spacing
This special drilling layout allows single 2X4 stud coverage of
vertical panel joint whether joint is continuous or panels are staggered.
Caution: Be sure that holes drilled 1-1/8" in from panel edge are
to the right as shown, whether used on interior or exterior wall
form.
Plywood Trimming
To eliminate the need for exterior panel filler strips, plywood
for the inside forms may be trimmed to compensate for the difference
in circumference. Measure 1-1/8" in from panel edge, and adjust
spacing for subsequent holes accordingly. For heavy duty radius
forming jobs, ask MCS for info on Gates Radius Forming Systems.
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|
|
Form Construction
- Using 1-1/8"
plywood, cut a template to conform to the desired radius (reduce
radius to compensate for thickness of studs and plywood).
- Set back to
compensate for thickness of studs and plywood and nail tem- plate
to footing.
- Toenail studs
to template.
- Tack plywood
to first stud and install snapties and "A" brackets to secure
plywood to remaining studs. "A" brackets should always be set
on the left side of studs so eccentric is properly positioned
to be vibration-proof.
- Temporarily
brace using adjustable form aligner braces.
- Continue for
additional sheets, staggering plywood joints as panels are stacked.
- Check and align
form; cut top template to conform to full radius minus plywood
thickness and nail template to top of form.
- Double-up-outside
form will conform to the radius of the inside form.
|
|
1. Footing
To set footing plate, nail 2X4 plate to footing as shown. Erect
first sheet of plywood, plumb, nail to plate and set temporary brace.
Whenever possible start with the inside form.
3. Install Hardware
& Supports
Working from top to bottom, install ties, "A" brackets and walers.
Tighten by striking wedge on the "A" bracket; plumb and align wall.
Waler butt joints should be at "A" bracket or away from vertical
plywood joints
Vertical Joint
Design
An additional tie hole drilled in pattern 1-1/8 below the vertical
plywood joints allows for the installation of a waler to cover that
joint. The use of 3X4 or 4X4 in place of the normal 2X4 waler provides
more positive support at the joint.
Strongback Detail
Nail 2X4 waler brackets to the walers at the desired location, add
2X4's (reverse crown for better alignment), and lock in place with
snaptie wedges. Use a form aligner brace for final alignment of
the form.
|
 |
2. Place Panels
To erect additional sheets, tack sheets to footing plate. Temporarily
hold in place with snaptie, "A" bracket and short 2X4. Make sure
vertical joints are tight.
4. Double Up
Place plywood sheets over tie ends starting with bottom row of ties;
move sheet to align holes in plywood with tie ends. Secure panel
with "A" bracket, install waler and tighten bracket.
Laced Corner
Design
A simple, alternative corner design is achieved by allowing walers
to run past the corner of the form; then lace and lock them positively
with a vertical nailer.
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|
