Two-way pre-stress system and bending device therefor
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United States of America Patent
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Nov 8, 2011
Grant Date -
Dec 11, 2008
app pub date -
Jun 4, 2008
filing date -
Jun 5, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed is a two-way pre-stress system for applying pre-stress to a member of a structure by a pre-tendon method, the system comprising: a mold for forming the member, the mold having a concrete pouring space; a supporter installed outside the mold; at least one horizontal tendon installed in the mold in a horizontal direction; a horizontal tendon settling device installed at the supporter, for settling the horizontal tendon in the mold; at least one vertical tendon installed in the mold in a vertical direction; a vertical tendon settling device installed at the supporter, for settling the vertical tendons in the mold; and a bending device installed at the supporter and combined with at least one of the vertical tendon, for forming a bent portion in at least one vertical tendon in a deep portion of the member.
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