DRAWINGS USED IN THE CONSTRUCTION INDUSTRY

DRAWINGS USED IN THE CONSTRUCTION INDUSTRY

INTRODUCTION

Construction drawing is the general term used for drawings that form part of the production information that is incorporated into tender documentation and then the contract documents for the construction works. This means they have legal significance and form part of the agreement between the employer and the contractor.

The main purpose of construction drawings is to provide a graphic representation of what is to be built.

Construction drawings should be concise and coordinated to avoid, wherever possible, ambiguity and confusion.

Delays and misunderstandings can be minimized by properly coordinating the drawings.

Specifications will detail the materials, standards, techniques, and so on required to carry out the works.

Construction drawings provide the graphical representation, indicating the arrangement of components, detailing and dimensions and so on. They may sometimes contain some of the information set out in specifications, but this should be avoided if possible, by referring to specifications rather than duplicating information.

Drawings serve as the prime means of communication for construction of buildings and other construction projects, drawings connect different professionals for the successful accomplishment of the project.

In building construction there are different kinds of drawings involved or required for project execution before the project commencement, as they mentioned below

  1. Architectural   Drawings

Is the illustration of what the final product will look like plus an instructional tool on how to achieve it, architectural drawings can be devoted to depicting an overview of the building such as elevations or they can focus on a particular element as a detail.

All pieces of architectural drawing give accurate information on how to get a final product by showing connections and dimensions of each party of the building.

The architectural drawing involve provision of number of drawings which comprises of the following

i)        Floor plans of the building

ii)      Elevations of the building

iii)    Sections of the building

iv)    Site plan of the building

v)      Roof plan of the building

vi)    Working drawing of the building

        2.  Structural Drawings

Structural drawings are technical drawing showing the back bone of the building, they provide the complete view of the structure or structure involved in the building.

Structural drawings are typically prepared by licensed structural Engineer relying on input from architectural drawings.

Structural drawing shows the details and description of the structural members(load bearing members) in the building such as slabs, beams, columns and foundations.

The structural drawing provides

i)        The structural members layout and detailing

ii)      The method of connections or joints of structural members

c     3.  Electrical Drawings

This is the type of technical drawing illustrate information about lighting, wiring, power and circuits within the building.

Electrical construction drawings are meant to illustrate the physical layout of the wires and components they connects inside the building as well as outside.

 4 .  Plumbing and Sanitary Drawings:

This is the type of construction drawing that illustrates the system for pumping water in and out of the building, it gives the location of sanitary, piping for water supply system, fixtures and the process to connect every fixture.

5. Finishing Drawing

            The drawings illustrate the finishing details and appearance of  the building, construction finishing                          drawing include every type of components of the building such as painting colors, flooring pattern,                           plastering texture , elevation design and false ceiling shape.