A method for hoisting and transporting assemblies in an underground nuclear power plant, the method including: 1) pouring concrete onto a reactor cavern to form a rock anchor beam; hoisting a circular bridge crane to the reactor cavern through a hoist shaft on a top of the reactor cavern; mounting the circular bridge crane on the rock anchor beam by using a truck crane; 2) installing a containment cylinder and a track beam of a polar crane in the reactor cavern using the circular bridge crane; hoisting a gantry crane on one end of a polar crane girder and sending the polar crane girder to the reactor cavern; hoisting the other end of the polar crane girder using the circular bridge crane; allowing the polar crane girder to be horizontal; and mounting the polar crane girder on the track beam.

A method for hoisting and transporting assemblies in an underground nuclear power plant, the method including: 1) pouring concrete onto a reactor cavern to form a rock anchor beam; hoisting a circular bridge crane to the reactor cavern through a hoist shaft on a top of the reactor cavern; mounting the circular bridge crane on the rock anchor beam by using a truck crane; 2) installing a containment cylinder and a track beam of a polar crane in the reactor cavern using the circular bridge crane; hoisting a gantry crane on one end of a polar crane girder and sending the polar crane girder to the reactor cavern; hoisting the other end of the polar crane girder using the circular bridge crane; allowing the polar crane girder to be horizontal; and mounting the polar crane girder on the track beam.

A support installation includes support members for supporting an electric cable, a tower crane, a mast and a jib linked to an upper portion of the mast. The jib and the mast respectively extend according to a jib direction and a substantially vertical mast direction. The support members are secured to the jib and disposed at a plurality of locations distant according to the jib direction. The support members extend transversally to the jib direction to protrude laterally from the jib. The jib is cantilevered when the support installation is in the service configuration.

A support installation includes support members for supporting an electric cable, a tower crane, a mast and a jib linked to an upper portion of the mast. The jib and the mast respectively extend according to a jib direction and a substantially vertical mast direction. The support members are secured to the jib and disposed at a plurality of locations distant according to the jib direction. The support members extend transversally to the jib direction to protrude laterally from the jib. The jib is cantilevered when the support installation is in the service configuration.

A lifting and moving device, and a method of using the device comprising a frame having a first ground engaging end with at least one wheel for providing a movable first ground engagement and a second ground engaging end with a pointed end for providing a fixed second ground engagement for the frame. A lifting and moving support extending between the first and second ground engaging ends is adjustable in length for providing one or more distances between the first ground engaging end and the second ground engaging end. A lifting device is retractable from a position on the support and the frame is movable about a pivot point provided by the second ground engaging end.

A robotic system having a movable gantry robot (10) for conducting construction operations. The gantry may have an expandable bridge (20) and articulated gantry support legs (34) as well as a support track system (60) holding a gantry robot (800) which may hold one or more implements and peripheral devices (806). The device can be moved by propulsion mechanisms, a controller, and one or more geo-positioned control devices to provide position information for the robotic gantry as it moves back and forth along a plurality of work sites (700). The robotic gantry is connected to a power supply system (236). The controller is automated, self-navigating, and activates, deactivates, and/or changes the operation of the propulsion mechanisms, and deploys, retracts, activates, deactivates, and/or changes the operation of one or more of the construction implements. The height of the frame may be adjusted by extending and rotating risers and booms to accommodate different building heights or sub-level heights at a worksite. A conveyor system is optimized for removing dirt from or delivering material to the robotic arm. This invention can be applied to automating construction jobs including surveying, land preparation, excavation, foundation, masonry, framing, and additive fabrication.

A series of moment frames, each including two opposing spaced apart vertical legs and a horizontal crossbar connecting the top ends of the legs, are arranged linearly in spaced apart side-by-side array and opposing outer horizontal panel support beams are connected to the outside faces of the legs on each building side, offset below the crossbars. On the inside faces of the legs and running parallel to the beams, first and second opposing crane rails are attached. A bridge crane is mounted on the crane rails. Four-panel folding sections are assembled in an adjacent side-by-side array and rest on the panel support beams. Individual wall panels, arranged side-by-side, enclose the space from the bottoms of the legs (ground level) to the panel support beams. End panels, in various configurations, close the ends of the crane building and allow access doors or and other openings.

A device and process for lifting and transiting a heavy object from a confined space is provided that increases the efficiency of repair of malfunctioning heavy appliances illustratively including hot water heaters. The device and process are able to adapt to a variety of obstacles and spatial challenges inherent in confined spaces where heavy appliances are frequently located. Additional benefits provided by the device and process are to reduce the risk of injury to a maintenance person working to repair a malfunctioning heavy appliance by allowing for the lifting and transiting of the appliance away from the confined space, thereby allowing for easier access and a larger working environment, while also reducing the risk of damage to property within, or in proximity to the confined space where a heavy appliance is located.

A low profile transport device includes a frame having a top surface and a recess disposed along the top surface to hold and transport an object. The low profile transport device also includes a plurality of wheels disposed below the frame that support the frame, and a plurality of pivotable wheel struts coupled to the wheels. The wheel struts are each individually adjustable relative to the frame from a first position relative to the frame to a second position relative to the frame to allow the low profile transport device to climb an obstacle without tilting the frame. The low profile transport device also includes a motor that generates movement of the wheels.

A low profile transport device includes a frame having a top surface and a recess disposed along the top surface to hold and transport an object. The low profile transport device also includes a plurality of wheels disposed below the frame that support the frame, and a plurality of pivotable wheel struts coupled to the wheels. The wheel struts are each individually adjustable relative to the frame from a first position relative to the frame to a second position relative to the frame to allow the low profile transport device to climb an obstacle without tilting the frame. The low profile transport device also includes a motor that generates movement of the wheels.