Annotation
literal: An OWL Ontology for lift bridge design

DataPropertyAssertion
literal: 13.0

DataPropertyAssertion
literal: 157.0

DataPropertyAssertion
literal: 43.0

DataPropertyAssertion
literal: 15.0

DataPropertyAssertion
literal: 44.0

DataPropertyAssertion
literal: 18.0

DataPropertyAssertion
literal: 10.0

DataPropertyAssertion
literal: 26.7

DataPropertyAssertion
literal: 5.7

DataPropertyAssertion
literal: 3.05

DataPropertyAssertion
literal: 32.0

DataPropertyAssertion
literal: 13.0

DataPropertyAssertion
literal: The four pylons were formed out of concrete and each house one of the four counterweights that balance the bridge. he span support machinery comprises the counterweight ropes, counterweight sheaves and bearings and the counterweights. The span weight is approximately 2720 tonnes (tram-train phase) and is balanced at the four corners of the lift span by the counterweights. The counterweights are comprised of a central spine plate and four quadrant boxes. Each quadrant box is filled with steel ingots specially cast for the interior shape of the quadrant boxes. The ingots are sized to provide the necessary balance with adjustment for final balancing and any future modifications..

DataPropertyAssertion
literal: A total of four counterweights, each weighing about 50 tonnes, are required to balance the lift span

DataPropertyAssertion
literal: -4

DataPropertyAssertion
literal: 18.0

DataPropertyAssertion
literal: 0.0076

DataPropertyAssertion
literal: 160000.0

DataPropertyAssertion
literal: 38

DataPropertyAssertion
literal: 160000

DataPropertyAssertion
literal: 11.0

DataPropertyAssertion
literal: 5.3

DataPropertyAssertion
literal: 37000

DataPropertyAssertion
literal: Digitally controlled variable speed motor drives were used for the span drive system.

DataPropertyAssertion
literal: 2720.0

DataPropertyAssertion
literal: 50

DataPropertyAssertion
literal: positioning of electrical components in machine rooms 25 m above the water level enclosures for mechanical machinery and components

DataPropertyAssertion
literal: 117.4

DataPropertyAssertion
literal: 33.0

DataPropertyAssertion
literal: 13.0

DataPropertyAssertion
literal: 118.0

DataPropertyAssertion
literal: 47.0

DataPropertyAssertion
literal: 43.0

DataPropertyAssertion
literal: 3.05

DataPropertyAssertion
literal: 33.0

DataPropertyAssertion
literal: 21.34

DataPropertyAssertion
literal: 13.0

DataPropertyAssertion
literal: positioning of mechanica components in machine rooms 25 m above thewater level

DataPropertyAssertion
literal: Two box beams (lift beams) support the longitudinal box girders at the ends of the lift span and are used to lift the span during operation with the use of 32 - 38mm diameter wire ropes. The ropes are supported on 3.0m sheaves and are connected to counterweights within the tower. A total of four counterweights, each weighing about 50 tonnes, are required to balance the lift span.

DataPropertyAssertion
literal: 80.0

DataPropertyAssertion
literal: 32.5

DataPropertyAssertion
literal: 0.3

DataPropertyAssertion
literal: 40

DataPropertyAssertion
literal: 0.324

DataPropertyAssertion
literal: 40.0

DataPropertyAssertion
literal: 0.35

DataPropertyAssertion
literal: 20.0

DataPropertyAssertion
literal: 22.0

DataPropertyAssertion
literal: 10.0

DataPropertyAssertion
literal: The operating machinery is traditional in layout and is mounted in the lower level of the concrete plinth on which the two pylons are founded. The machinery includes two electric drive motors (A and B motors) connected to a primary reducer and a secondary reducer

DataPropertyAssertion
literal: The span operating machinery utilizes a two-way operating rope system with uphaul ropes connected to the bottom of the counterweight. The downhaul ropes extend from the operating drum over a deflector sheave at the pylon top and connect to the top of the individual counterweights

DataPropertyAssertion
literal: 3.5

DataPropertyAssertion
literal: 26.5

DataPropertyAssertion
literal: 1.215

DataPropertyAssertion
literal: 1.215

DataPropertyAssertion
literal: 0.508

DataPropertyAssertion
literal: 0.273

DataPropertyAssertion
literal: 3

DataPropertyAssertion
literal: Varies, Top pylon, and at concrete plinth

DataPropertyAssertion
literal: 3

DataPropertyAssertion
literal: Top tower

DataPropertyAssertion
literal: 40.0

DataPropertyAssertion
literal: 12.0

DataPropertyAssertion
literal: at four corners of the lift span

DataPropertyAssertion
literal: at four corners of the lift span

DataPropertyAssertion
literal: 210000.0

DataPropertyAssertion
literal: 3.75

DataPropertyAssertion
literal: 3.75

DataPropertyAssertion
literal: 2.0

DataPropertyAssertion
literal: 2.5

DataPropertyAssertion
literal: Varies with use

DataPropertyAssertion
literal: 80.0