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WorksheetsPrestressed Concrete HW 1c
Total questions: 10
Worksheet time: 5mins
The maximum jacking force should be limited to ___ of the specified tensile strength of the strand.
80%
50 percent
85 percent
Elongation measurements should be to an accuracy of ___.
1/8 INCH
1/2"
3/8"
The purpose of a lift off is to determine
THE ACTUAL FORCE IN A TENDON
if wedges are seated
if tendons have pitted more than 0.002 inches of damage
Stressing pockets should be filled with non-shrink grout within_____ after cutting Tendon tails & installing encapsulation cap.
1 DAY
48 hours
immediately
Couplers when approved for use should be located ____________________.
IN THE MIDDLE ONE-THIRD OF THE MEMBER
best place possible to get to
easily accessible
Calibrated jack-gauge systems shall be capable of measuring the jacking force within an accuracy of _____.
2 %
7 %
1 inch
Uniform Tendons should be supported at intervals not exceeding____.
4 FEET
47 inches
12 inches
Measured elongation shall agree with calculated elongation within ______.
+- 7 %
3 inches
12 inches
Encapsulation caps shall be installed within _____ after cutting the Tendons tails.
8 HOURS
1 day
immediately
Acceptability of the stressing operation is determined by the combination of what two measurements ?
GAUGE READING
TENDON ELONGATION
gauge reading and tape measurement
tendon elongation and tape measurement
