Types of buildings depend upon social functions and may be classified according to the role in the community.
The types of buildings may be domestic, educational, office,industrial, recreational, etc. The common and necessary con ditions are:
(a) its suitability to use by human beings in general and its adaptability to particular human activities
(b)the stability and permanence of its construction.
Speaking of residential construction we must say that the apartment houses are mostly built to suit urban conditions.Group housing provides home for many families and is at once public and private. The techniques of construction or the methods by which structures are formed from particular materials are influenced not only by the availability and character of materials but also by the total technological development of society.
The evolution of techniques is conditioned by two factors: one is economic — the search for a maximum of stability and durability in building with a minimum of materials,
labour and time; the other is expressive— the desire to produce meaningful form. Large housing programmes have tended to stimulate technological change in the building industry. Modular design(i.e. design in which the elements are dimensioned in combinations of a fixed unit) has led to standardization of elements,interchangeability of parts and increased possibilities for
mass production, with resultant economies. Entire apartment assemblages are available and are being used to an increasing extent. These techniques aim at a higher output of better
structures at lower cost. The high degree of mechanization and standardization is successfully achieved by reinforced concrete blocks and units. Reinforced concrete homes are produced by a variety of construction methods. Various methods of constructing reinforced concrete houses involve extensive use of large section's manufactured in heavily mechanized factories and erected at the site.The built-in space of an apartment should be carefully thought of as well. There is a considerable trend toward built in furniture. Rooms should be both efficient and visually
satisfying. The extent of built-in cabinets must be determined.Drawers and shelves can of ten 'be concealed behind walls,freeing valuable floor space.
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