Bending of Continuous Beam: Theory, Procedure, and Experimental Measurement

BENDING OF CONTINUOUS BEAM
1

Table of Contents
1. Introduction............................................................................................................................3
2. Aims and objective.................................................................................................................3
3. Apparatus...............................................................................................................................3
4. Theory....................................................................................................................................6
5. Procedure................................................................................................................................8
6. Theoretical calculation...........................................................................................................8
7. Experimental measurement and calculation...........................................................................9
8. Result....................................................................................................................................11
9. Requirements........................................................................................................................12
10. Discussion..........................................................................................................................13
11. Conclusion..........................................................................................................................15
2

1. Introduction
A beam can be defined as a structural element that resists laterally load applied on the beam's
axis. It is majorly used in building structures such as the construction of trusses, bridges and
other structure, which carry a shear load, horizontal load and vertical load. The purpose of the
study is to examine the distribution of bending moment in a beam to understand difference
between theoretical and experimental error. In order to understand broad perspective of
bending moment, a steel beam supported on three simple supports has been taken to
investigate experimental error. Apart from experimental concept, different engineering
theories have been examined to identify strain with respect to beam.
2. Aims and objective
The aim of the study is to evaluate wide concept of theoretical and practical result in context
to distribution of bending moment with respect to beam.
 To examine theoretical concept of beam to explore structure of beam
 To examine strain and work load graph at different gauge position
 To evaluate bending moment per Kgf at different gauge location
3. Apparatus
Steel Beam: A steel beam can be defined as structural steel that is produced to support a
heavy load (Arunkumar et al. 2018, p.617). In order to compare difference between
theoretical and experimental value, a 1.5m steel beam has been selected, which is supported
on 3 simple supports, one at 0.9 m from the end followed by one at each end.
Fig. 1 Steel Beam.
3

Load (W):
It is one of the important components of the experiment, which different weights have been
used between 0.5 kg to 4 kg of load so that distribution of strain on a steel beam can be
measured wisely (Classen, 2018, p.99).
Metre rule: It is used to measure the breadth of a steel beam and for that, digital meter rule
has been used to minimize the percentage of error as far as possible.
Fig. 4Metre rule
4