FLAT
JACKS
Low
height steel capsule jacks
The Structural Engineer's Solution for
Temporary & Permanent Load Transfer
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Complex Flat Jack Systems
In applications using multiple Flat Jacks the hydraulic pumping circuitry can be arranged appropriately using pipe and compression fittings or flexible hoses and quick release couplings.
Individual gauges can be fitted to individual jacks, downstream of their needle valves, instead of or in addition to a common ring main gauge. Differing loads in neighbouring jacks may thus be locked in and monitored as necessary.
For especially complex operations, solenoid valves, electronic pressure transducers and computerised control, monitoring and data logging systems may be used.
Windsor Castle, UK
Where
Flat Jacks are required to maintain a constant thrust while permitting
movement - such as in controlling the thrust of long shores subject to
thermal movement - nitrogen accumulators may be applied. A suitably sized
accumulator fitted in the Flat Jack line will have large gas volume compared
to the volume change of the Flat Jack as it opens or closes and will absorb
these volume changes within negligible pressure variations.
SEISMIC
ISOLATOR PRELOADING
Salt Lake City and County building, Utah, USA