THIN JACK DEVICE FOR BRIDGE LIFTING
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United States of America Patent
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N/A
Issued Date -
Oct 16, 2014
app pub date -
Apr 14, 2014
filing date -
Apr 15, 2013
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A thin jack device for bridge lifting is disclosed, comprising a base seat; a lifting unit, movably connected with the base seat; and a displacement sensor, disposed at a side of the base seat. In this manner, an arrangement may be applied when a gap altitude between a bridge girder and a pier is insufficient to reduce a risk possibility of violation of the bridge and pier, and a displacement sensors attached to stroke is used to monitor a raised altitude to reduce a mechanical error to promote safety and thereby sufficiently the current pier structure to save a temporarily used pier or a frame based design and construction, whereby increasing the construction safety and decreasing the construction cost.
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