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Standard
Tendons consisting of up to 61 strands dia. 0.5" or 42 strands
dia. 0.6", have a maximum ultimate capacity of over 11 '000 kN. Usually
the strands are installed in the structure by pushing them individually
into preplaced ducts of metal or plastic.
Stressable
Anchorages consist of an anchor head with different types of
bearing plate and trumpet assemblies. All strands are stressed
simultaneously and anchored individually by wedges which, by means of the
stressing unit, are hydraulically seated in the anchor head for equal
gripping.
Fixed
Anchorages are either similar to the stressable anchorage or
alternatively of the loop-type, whereby each strand is provided with a
short loop outside the duct. The loops can be easily formed on the
construction site by means of a special light tool.
Coupling
Anchorages connect tendons to already stressed ones, anchored at
a construction joint. The common anchor head accommodates an equal number
of strands from both sides and for safe gripping, wedges and springs are
preassembled. |