portal crane

portal crane

[′pȯrd·əl ′krān]
(mechanical engineering)
A jib crane carried on a four-legged portal built to run on rails.

gantry crane

A revolving crane, positioned atop a movable pedestal that travels along tracks; can reach a more extensive area of a construction site than a stationary crane of similar size.
References in periodicals archive ?
Congress has already approved funding for Portsmouth Naval Shipyard for paint, blast and rubber facility consolidation, consolidated warehouse replacement, Dry Dock 1 superflood basin and an extended portal crane rail.
Zhang, "The safety evaluation for gantry system of portal crane based on the grey theory and analytic hierarchy process," Journal of Fuzhou University (Natural Science Edition), vol.
The log sorting is managed by a portal crane which runs on tracks 120m long and is the first of its kind to be used in a sawmill in the UK.
The HSE investigation found that while Mr Watson was trained to operate a dockside portal crane, he had no formal qualifications in lifting and slinging of loads.
It runs a floating dock and a slipway covered by a portal crane of 100 tonnes.
The order includes 23 process cranes with lifting capacities of up to 55 tonnes, two semi-portal cranes, one full portal crane and two standard cranes.
Airwing supplies are delivered pierside by trucks, transported to a loading area with forklifts and lifted directly to the flight deck by a 330-thousand pound capacity Ship Repair Facility and Japan Regional Maintenance Center portal crane.
Tenders are invited for Supply of spare parts and repair services of a self-propelled portal crane
The elements of the project are as follows Demolition of wharf structures, Construction of wharf structures, Seabed dredging, Wharf furniture, Portal crane and Shore engineering services.Stage two is estimated to be completed in 2023.
Authorizes funding for modernizing Dry Dock #1 ($71.4 million in FY19 with the remaining $38.5 million to be authorized next year), extending the portal crane rail ($39.7 million), and replacing the DLA consolidated warehouse ($11.6 million) at Portsmouth Naval Shipyard in Kittery.
INFRASTRUCTURE IMPROVEMENTS AT PORTSMOUTH NAVAL SHIPYARD: The legislation authorizes $122.7 million for infrastructure modernizations at Portsmouth Naval Shipyard in Kittery, which includes the development of a dry dock super flood basin, improvements to the portal crane rail, and the construction of a new consolidated warehouse.