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Section through railway track and foundation showing the sub-grade. Grading in civil engineering and landscape architectural construction is the work of ensuring a level base, or one with a specified slope, [1] for a construction work such as a foundation, the base course for a road or a railway, or landscape and garden improvements, or surface drainage.
It also differs from a strap beam because a grade beam is reinforced to distribute the weight of a wall to separate foundations, [2] while a strap beam is designed to redistribute the weight of a column between footings. Grade beams may also be used in conjunction with spread footings, in a case with large moments from lateral loads, in order ...
The term is a generalization from the deck of a ship. A level architectural deck may be intended for use by people, e.g., what in the UK is usually called a decked patio. "Roof deck" refers to the flat layer of construction materials to which the weather impervious layers are attached to a form a roof, and they may be either level (for a "flat ...
Schematic cross section of a pressurized caisson. In geotechnical engineering, a caisson (/ ˈ k eɪ s ən,-s ɒ n /; borrowed from French caisson 'box', from Italian cassone 'large box', an augmentative of cassa) is a watertight retaining structure [1] used, for example, to work on the foundations of a bridge pier, for the construction of a concrete dam, [2] or for the repair of ships.
An unusual barn in Schoonebeek, Netherlands with interrupted sills, the posts land directly on the padstone foundation Norwegian style framing, Kravik Mellom, Norway. In historic buildings the sills were almost always large, solid timbers framed together at the corners, carry the bents, and are set on the stone or brick foundation walls, piers, or piles (wood posts driven or set into the ground).
Screw pile installations have also extended to residential applications, with many homeowners choosing a screw pile over other options. Some common applications for helical pile foundations include residential decks, sheds, cement pads, preformed stairs and grade beams. [4]
The beam and base method of underpinning is a more technically advanced adaptation of traditional mass concrete underpinning. A reinforced concrete beam is constructed below, above or in replacement of the existing footing. The beam then transfers the load of the building to mass concrete bases, which are constructed at designed strategic ...
Each of the intermediate towers is composed of two piers with four columns each; the piers rest on masonry footings, while the tops of the columns support the decks of the side spans. [420] The deck is placed above transverse floor beams measuring 5 feet (1.5 m) deep and 118 feet (36 m) long and spaced at intervals of 20 feet (6.1 m). [415]
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