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A "active end anchorage of a prestressing tendon that has jacking operations undertaken at that end. [3]: 20 load balancing A prestressed concrete design method in which the prestressing forces exerted upon the member act to balance a given proportion of the service loads that the member will be subjected to. [1]: 38 longitudinal prestressing
A dead-end transmission tower uses horizontal strain insulators at the end of conductors. Dead-end towers may be used at a substation as a transition to a "slack span" entering the equipment, when the circuit changes to a buried cable , when a transmission line changes direction by more than a few degrees, or at intervals along a straight run ...
Upon installation, tiebacks are tested and usually pre-loaded. In specific, a combination of proof tests and performance tests are performed on every job. Proof testing involves the application of successively larger loads on the tieback with a loading jack, allowing for the recording of a load-elongation curve according to gauge readings.
Interest in dead man's controls increased with the introduction of electric trams (streetcars in North America) and especially electrified rapid transit trains. The first widespread use came with the introduction of the mass-produced Birney One-Man Safety (tram) Car, though dead-man equipment was fairly rare on US streetcars until the successful PCC streetcar, which had a left-foot-operated ...
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Its frame consisted of a combination of pistol grip and large mechanical levers, the last example in New South Wales. [8] In February 2003 alterations to the station to install lifts, new access stairs and additional platform and stair canopies, and canopies to the overhead footbridge and station entrance areas were complete. [9] [10]
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By the end of 2019 nearly 7,000 MG5s were expected to be delivered. [22] Bundespolizei designated as MG5 A1 used on 42 ordered FLW 100 remote weapon stations for its armored vehicles. [ 23 ] [ 24 ] [ 25 ] In June 2021 German media reported the Bundeswehr had 7,472 MG5s available and over 11,000 additional MG5s were ordered in a €175 million ...