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MODULES MODULES The term "module" derives from the Latin "modulus" as a diminutive of "modus", i.e., measure. Module is thus a term, starting from its original meaning of small measurement, utilized in the sphere of constructions to identify the base- measurement, or the base-form, in relation to which a complex structure is conceived, organized, designed and built. Standard unit of size used to coordinate the dimensions of buildings and components. With the module it was possible to verify the proportioning of a building mainly from the perceptive and aesthetic points of view, and its definition was totally independent of the characteristics of the materials utilized or of reference to dimensions correlated to the human body. With industrialization, the theme of the module was collocated even more precisely within the context of so-called modular coordination. The concept of module takes on the specific meaning of fundamental dimensional element to be assumed as common reference, both in the design process and in the production process of industrial nature. A module can be defined as a basic dimension which could for example form the basis of a planning grid in terms of multiples and submultiples of the standard module. Basic Terminology Basic module M = 100 mm The smallest module to be used to coordinate position and size of components, elements and installations, related by reference 3D points, lines and planes Multi-Module 3M, 6M, 9M, 12M . . Planning modules for main dimensions of framework : span, storey height etc. Sub-Module M/2, M/4 For sizing of components requiring increment smaller than M Horizontal planning module Mh = 3M (300mm) The horizontal planning module for structural framework is based on the functional requirements of the building and the components to be used for economic design. Vertical Planning Module Mv = 1M (100mm) Reference System Basic Modular Grid For small scale drawings to clarify relationship between components - 1M x 1M. Multi Modular Grids Formed with intervals of multi modules squares with same intervals or rectangular used in key plans, showing layouts and positioning of main building components. Tartan Grids Interrupted modular planning Grid band of interruptions are regularly spaced in both Directions band of interruptions can be modular or non modular. Modular Grid & Modular Components 1. modular planning grid is used mainly for the design structural framework. 2. modular component must normally be kept within its modular zone but technical considerations may require certain connections which entail the components exceeding their modular zones eg. tongue and groove, bolted connections. 3. with simple, uniform modular components, there is no conflict with the modular grid, however at connections, either grid must give way or special non modular components must be used. GRID •Modular coordination is a concept of coordination of dimension and space, in which buildings and components are dimensioned and positioned in a term of a basic unit or module, known as ‘1M’ which is equivalent to 100 mm. Structural Grid – Used to locate structural components such as beams and columns. Planning Grid - Based on any convenient modular multiple for regulating space requirements such as rooms. Controlling Grid – Based on any convenient modular multiple for location of internal walls, partitions dc. Basic Module Grid – •Used for detail location of components and fittings. •All the above grids, being based on a basic module, are contained one within the other and are therefore interrelated. •These grids can be used in both the horizontal and vertical planes thus forming a three dimensional grid system. • If a first preference numerical value is given to M dimensional coordination is established. Modular Brick Masonry MODULAR UNIT DIMENSIONS •The listed dimensions of modular masonry units are "nominal'', and are equal to the manufactured or specified dimension plus the thickness of the mortar joint with which the unit is designed to be laid. •For example, the manufactured length of a unit whose nominal length is 12 in. would be 11 1/2 in. if the unit were designed to be laid with 1/2 in. joints, or 11 5/8 in. for 3/8 - in. joints. GRID LOCATIONS OF MASONRY WALLS •Grid locations of mortar joints in walls constructed with various modular units when the walls are centered between grid lines. •It can be seen that all grid lines coincide with horizontal mortar joints for only the 2 - in. and 4 - in. nominal heights, thus providing 4 - in. flexibility. •A symmetrical grid location for walls is usually preferred to an unsymmetrical position. •The fact that alternate grid lines coincide with the mortar joints provides a simple rule for determining the location of a grid line with respect to the masonry at any point above or below a given reference grid line. •Any grid line which is an even multiple of 4 - in. from the reference line will have the same relative position with respect to the masonry coursing. •This simple rule greatly simplifies the checking of course heights, particularly for lintels, where it is usually essential that the head of the opening coincide with a horizontal mortar joint.
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