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An advertising column or Morris column (French: colonne Morris, German: Litfaßsäule) is a cylindrical outdoor sidewalk structure with a characteristic style that is used for advertising and other purposes. They are common throughout Germany [1] including its capital Berlin, where the first 100 columns
The ACI Building Code Requirements put the following restrictions on amount of spiral reinforcement. ACI Code 7.10.4.2: For cast-in-place construction, size of spirals shall not be less than 3/8 in. diameter. ACI Code 7.10.4.3: Clear spacing between spirals shall not exceed 3 in., nor be less than 1in.
A steel column is extended by welding or bolting splice plates on the flanges and webs or walls of the columns to provide a few inches or feet of load transfer from the upper to the lower column section. A timber column is usually extended by the use of a steel tube or wrapped-around sheet-metal plate bolted onto the two connecting timber sections.
A monolithic column or single-piece column is a large column of which the shaft is made from a single piece of stone instead of in vertical sections. Smaller columns are very often made from single pieces of stone, but are less often described as monolithic, as the term is normally reserved for less common, larger columns made in this way.
Random column packing is the practice of packing a distillation column with randomly fitting filtration material in order to optimize surface area over which reactants can interact while minimizing the complexity of construction of such columns. Random column packing is an alternative to structured column packing.
The M2 light tank, officially Light Tank, M2, was an American light tank of the interwar period which saw limited service during World War II. The most common model, the M2A4, was equipped with one 37 mm (1.5 in) M5 gun and five .30 cal M1919 Browning machine guns .
A military column is a formation of soldiers marching together in one or more files in which the file is significantly longer than the width of ranks in the formation. The column formation allows the unit rapid movement and a very effective charge (due to weight of numbers), and it can quickly form square to resist cavalry attacks, but by its nature only a fraction of its muskets are able to ...
The M2 medium tank, officially Medium Tank, M2, was a United States Army medium tank that was first produced in 1939 by the Rock Island Arsenal, just prior to the commencement of the Second World War in Europe. [3] Production was 18 M2 tanks, and 94 slightly improved M2A1 tanks, for a total of 112.