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Stairs are a structure designed to bridge a large vertical distance between lower and higher levels by dividing it into smaller vertical distances. This is achieved as a diagonal series of horizontal platforms called steps which enable passage to the other level by stepping from one to another step in turn.
The first expanded polystyrene ICF Wall forms were developed in the late 1960s with the expiration of the original patent and the advent of modern foam plastics by BASF. [citation needed] Canadian contractor Werner Gregori filed the first patent for a foam concrete form in 1966 with a block "measuring 16 inches high by 48 inches long with a tongue-and-groove interlock, metal ties, and a waffle ...
A finished tilt-up building. Tilt-up, tilt-slab or tilt-wall is a type of building and a construction technique using concrete.Though it is a cost-effective technique with a shorter completion time, [1] poor performance in earthquakes has mandated significant seismic retrofit requirements in older buildings.
Post-and-lintel construction is one of four ancient structural methods of building, the others being the corbel, arch-and-vault, and truss. [ 1 ] A noteworthy example of a trabeated system is in Volubilis , from the Roman era, where one side of the Decumanus Maximus is lined with trabeated elements, while the opposite side of the roadway is ...
The granite and concrete staircase consists of thirty-seven steps that once connected the outdoor Austin J. Tobin Plaza outside of the twin towers down to Vesey Street below. [1] Prior to the attacks it had weighed 175 tons and stood 22 feet (6.7 m) high; by the time it was moved in 2008 the staircase weighed 65 tons.
A stepped gable, crow-stepped gable, or corbie step [1] is a stairstep type of design at the top of the triangular gable-end of a building. [ 1 ] [ 2 ] The top of the parapet wall projects above the roofline and the top of the brick or stone wall is stacked in a step pattern above the roof as a decoration and as a convenient way to finish the ...
After many years of exploration and attempt, EPS lightweight concrete can be used in many building structures, such as EPS insulation coating, EPS mortar, EPS sealing putty, EPS lightweight mortar, EPS concrete inner and outer wall panels, etc. [4] In addition, EPS lightweight aggregate concrete is also used in the fields of pavement backfill ...
In the United Kingdom many stiles were built under legal compulsion (see Rights of way in the United Kingdom).Recent changes in UK government policy towards farming have encouraged upland landowners to make access more available to the public, and this has seen an increase in the number of stiles and an improvement in their overall condition.