In structural detailing, the project is initiated by the
structural engineer. The architectural drawings are prepared by the architect
to the required scale and specification given to him by the client.
The structural engineer designs the structural frame work of the
building and specification required such as slab, beam, column and foundation.
For proper clearification and understanding, the structure is
broken down into its component parts and detailed keeping in mind the design
Structural detailing is the transformation of the works of the
structural Engineer into working drawing for the builders to use without any
The methods, symbols and notations used are standardized for uniformity
despite the multi-diversity natures of the construction industry. The standard
method of measurement and notations ofdetailing a building should be understood
before carying the exercise.
The purpose of their written account is to present a straight
forward introduction to the basic standard method in detailing reinforced
concrete structure and their component parts. Here a structural detailing of
three bedroom duplex has been chosen as the project.
Both the architectural work and the civil engineering work have
been completed. The subject matter has been arranged so that chapter 1-4 covers
the description of basic material and engineering design specification while
the last chapter covers the actual detailing of the components, all details are
shown in plan elevation and section.
For detailing of reinforced concrete, the abbreviation recommended
for this project are enlisted as follows:
TYPES OF REINFORCEMENT
Y – high yield
R = round mild steel bars
COMMENTS RELATING TO REINFORCEMENTS
T - top placed
B - bottom placed
@ - centres
c/c – centre to centre
Rc – reinforced concrete
Drw – drawings
Fdn – foundation
Conc – concrete
Dia – diameter
Bs – British standard
Cp – code of practice
Nos – numbers
Hf – thickness of flange
Fy – characteristic strenght of reinforcement
Fyy – characteristic strenght of link reinforcement
General principles of detailing of reinforcement concrete
Design information and structural summary
The engineer’s design specification
Detailing of the elements
The work in the construction industry involves the client, the
Architect, the Engineer, the quantity surveyor and the builders. A structural
project is initiated by the Engineer (civil Engineer).
The process of designing begins with the enginer’s appreciation of
the client’s requirements. After the specification given to the engineer by
architect according to the requirement of the client, the engineer develops
different structural schem from the architectural plan and calculated the
ultimate bending moment and designed load, which will help him to know te axid
C load and neutral axis where the structure is liable to settle and develops
sagging or hpgging due to improper use of reinforcement bar. Having considered
the use of material and erection methods and then comes up with the final work
of full structural analysis and detailed design.
Structural detailing can be defined as the process by which the
design of a structural system is drafted in a form that a builder can use for
construction for easy establishment.
Also structural drawings are the principle means by which the
designer communicates his requirements in a clean and unambiguois manner to the
This project outlines the important components and basic
techniques and methods required for structural detailing of a reinforced
The structural drawing is simple to interprete, dimensions are
clear. Bar bending schedules showing now the reinforcement bars are to be bend
are also provided. This is essential to the quantity survey or cost estimates
of the project and to the steel to supply and also to the iron bender to
determine the bends dimension.
A summary of design specification’s information and structural
consideration are provided standard scales and abbreviation are used to ensure
the uniforimity. The structural elements, beams, column, slabs, foundations
have been detailed and shown in plans, elevations and sections.
It is therefore believed that this project will fulfil its
requirements and serve its purpose of guiding the reader through the process of
basic structural detailing.
TERMS AND CONDITIONS APPLY
For more informations on project materials and more