Ads
related to: distance between bearers for decking
Search results
Results From The WOW.Com Content Network
In engineering, span is the distance between two adjacent structural supports (e.g., two piers) of a structural member (e.g., a beam). Span is measured in the horizontal direction either between the faces of the supports (clear span) or between the centers of the bearing surfaces (effective span): [1] A span can be closed by a solid beam or by ...
Ember attacks have the potential to start small fires ahead of the main fire trapping firefighters between the two fires. They can also lodge themselves within firefighting equipment, clothing and vehicles. In late 2019, a fire truck caught fire in an ember attack in the Currowan bushfire in New South Wales, Australia. [5]
The BOC for vessels is measured as follows: For a catamaran: the perpendicular distance from the centerline of one hull to the centerline of the other hull, measured at deck level. For a trimaran: the perpendicular distance between the centerline of the main hull and the centerline of either ama, measured at deck level. This term in typically ...
In sailing and boating, a vessel's freeboard is the distance from the waterline to the upper deck level, measured at the lowest point of sheer where water can enter the boat or ship. [1] In commercial vessels, the latter criterion measured relative to the ship's load line , regardless of deck arrangements, is the mandated and regulated meaning.
The rail deck is supported above the arches by twelve 14-inch (360 mm) square columns at 9 feet 11 inches (3.02 m) centres. Suspension rods supported the road deck, and both decks had two layers of diagonally laid three-inch deck timbers on suitable wrought iron cross girders (and rail-bearers in the case of the rail deck).
The distance between ribs is typically 915 mm (3 ft). [3] The height of the ribs and beams should be 1 ⁄ 25 of the span between columns. [3] The width of the solid area around the column should be 1 ⁄ 8 of the span between columns. Its height should be the same as the ribs. [3]
The larger truss is 185 feet (56.4 m) long and weighs 88 long tons (89 t); the smaller truss is 161 feet (49.1 m) and weighs 70 long tons (71 t). Vertical suspenders are attached to alternate cross-girders, which are spaced at 11.75 feet (3.6 m) centres. These support two longitudinal bearers beneath the rails, above which is a steel deck.
In the deck-type bridge, a wood, steel or reinforced concrete bridge deck is supported on top of two or more plate girders, and may act compositely with them. In the case of railroad bridges, the railroad ties themselves may form the bridge deck, or the deck may support ballast on which the track is laid.