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Floating raft is a land-based building foundation that protects it against settlement and liquefaction of soft soil from seismic activity. It was a necessary innovation in the development of tall buildings in the wet soil of Chicago in the 19th century, when it was developed by John Wellborn Root who came up with the idea of interlacing the concrete slab with steel beams.
Shallow foundations of a house versus the deep foundations of a skyscraper. Foundation with pipe fixtures coming through the sleeves. In engineering, a foundation is the element of a structure which connects it to the ground or more rarely, water (as with floating structures), transferring loads from the structure to the ground.
A structural drawing, a type of engineering drawing, is a plan or set of plans and details for how a building or other structure will be built. Structural drawings are generally prepared by registered professional engineers, and based on information provided by architectural drawings. The structural drawings are primarily concerned with the ...
Shallow foundation construction example. A shallow foundation is a type of building foundation that transfers structural load to the Earth very near to the surface, rather than to a subsurface layer or a range of depths, as does a deep foundation. Customarily, a shallow foundation is considered as such when the width of the entire foundation is ...
It is 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. [ 3 ] Caissons are constructed in such a way that the water can be pumped out, keeping the work environment dry.
Totora reed fishing boats on the beach at Huanchaco, Peru. Reed boats and rafts, along with dugout canoes and other rafts, are among the oldest known types of boats.Often used as traditional fishing boats, they are still used in a few places around the world, though they have generally been replaced with planked boats.
Several alternatives featured a self-propelled amphibious integrated transporter, floating pontoon, bridge deck section that could be delivered and assembled in the water under its own power, linking as many units as required to bridge a gap or form a raft ferry. An early example was the Engin de Franchissement de l’Avant EFA (mobile bridge ...
A strap footing is a component of a building's foundation. It is a type of combined footing, [1] consisting of two or more column footings connected by a concrete beam. This type of beam is called a strap beam. It is used to help distribute the weight of either heavily or eccentrically loaded column footings to adjacent footings. [2]