Flat Bar Ties

 Contains:

  • How to Build Form Panels
  • How To Erect Westcon Forms
  • Tie Loads

 

How to Build Form Panels

Corner Details
Corners are made from 3/4" plywood. Straps and hinges supplied by LeDrew. Corner shown is the standard 2' for 8" walls and works best on most jobs. Inside corners are connected by inserting a 5/8" rod through the hinges.

 

 

How To Erect Westcon Forms
 

Step 1
Nail a 2 x 4 plate to footing 3/4" outside building line. Set and plumb outside corners.
How Erect Westcon Forms - Step 1
Step 2
Join corners with a top 2 x 4 waler. This should be same length as bottom plate and placed completely around building The result will be a square foundation Complete setting of outside panels, nailing to both the bottom plate and the top waler with 2" nails.
How Erect Westcon Forms - Step 2
Step 3
Put Strip-Ease ties in slots and secure with 1/4" x 3/4" locking bars. Window bucks, reinforcing offsets, door jambs, etc. should be set at this time.
How Erect Westcon Forms - Step 3
Step 4
Locking bars must overlap the joining edges of the plywood forms and enter the next tie. This and alternate spacing of the bars will increase the form stability when concrete is poured.
How Erect Westcon Forms - Step 4
Step 5
Set inside panels, starting with the corners. Feed ties through slots. Insert bars by pulling bars through ties. No further bracing or walering is required on inside forms.
How Erect Westcon Forms - Step 5
Step 6
When the inside is complete, align and brace the outside form. Note the small amount of bracing and walering.
How Erect Westcon Forms - Step 6
Step 7 - To Strip
break off ties with a hammer. Hit the bars, not the ties. See how easily they come off!
How Erect Westcon Forms - Step 7
Step 8
Ties break back 1/4" within the concrete Forms are now free to be stripped.
How Erect Westcon Forms - Step 8

 

 Tie Loads

Strip-Ease tie loads at various temperatures, rate of pour and tie spacing
A - 16" x 20" tie spacing
B - 16" x 16" tie spacing
C - 12" x 20" tie spacing
D - 12" x 12" tie spacing

Temperatures

Rate of
Pour
(ft/hr)
70 F
60 F
50 F
40 F
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
2 1100 885 830 500 1220 980 915 550 1390 1145 1040 625 1610 1285 1205 725
3 1250 995 935 560 1420 1130 1060 640 1665 1330 1245 750 1775 1415 1330 800
4 1500 1105 1035 625 1610 1285 1205 725 1940 1550 1450 875 2390 1980 1785 1075
5 1525 1215 1140 690 1820 1440 1350 815 2220 1770 1660 1000 2775 2210 2075 1250
6 1665 1325 1245 750 2000 1600 1500 1000 2500 1990 1865 1125 3165 2520 2365 1425
7 1805 1440 1350 813 2200 1750 1645 1025 2775 2210 2075 1250 3550 2830 2655 1600
8 1940 1550 1450 875 2390 1980 1785 1075 3050 2435 2280 1375 3940 3140 2945 1775


Maximum safe working for Strip-Ease ties, 1500 Ibs./10 MPa

Focus Design Group