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The Bombardier CRJ100 overshot the runway and struck a low earthen wall adjacent to a ditch, briefly leaving the ground, clipped airport perimeter fencing with its landing gear and smashed into trees, separating the fuselage and flight deck from the tail. 49 of the 50 occupants were killed. Garuda Indonesia Flight 200: 2007
Coping may be made of stone (capstone), brick, clay or terracotta, concrete or cast stone, tile, slate, wood, thatch, or various metals, including aluminum, copper, stainless steel, steel, and zinc. [3] In all cases it should be weathered (have a slanted or curved top surface) to throw off the water. [1]
At ground level beneath and around the headframe is the Shaft Collar (also called the Bank or Deck), which provides the foundation necessary to support the weight of the headframe and provides a means for workers, materials and services to enter and exit the shaft. Collars are usually massive reinforced concrete structures with more than one level.
The elevated entrance is the lowest and frequently the only way of entering a fortified building or residence. In the case of circular towers, a large opening in the main wall at ground level was a potential weakness and experts on castle design have argued that the elevated entrance served a structural as well as defensive purpose. [1]
The top and bottom example may be considered structurally equivalent, depending on the effective stiffness of the spring and beam element. A cantilever is a rigid structural element that extends horizontally and is unsupported at one end. Typically it extends from a flat vertical surface such as a wall, to which it must be firmly attached.
Painting your front porch is one of the easiest ways to boost curb appeal—no major renovations required. But before you grab a brush, there are a few things to consider. But before you grab a ...
Single helix earth anchors Guyed mast anchor. An earth anchor is a device designed to support structures, most commonly used in geotechnical and construction applications. Also known as a ground anchor, percussion driven earth anchor or mechanical anchor, it may be impact driven into the ground or run in spirally, depending on its design and intended force-resistance characteristics.
A portico is a porch leading to the entrance of a building, or extended as a colonnade, with a roof structure over a walkway, supported by columns or enclosed by walls. This idea was widely used in ancient Greece and has influenced many cultures, including most Western cultures. Porticos are sometimes topped with pediments.