NON-CONCURRENT COPLANAR FORCES

  1. Determine the total moment about point A for the force systems shown in Figs. 1.1 and 1.4. 1 3 2
    5kN 3kN 8kN
    A
    (m)
    Fig. 1.1
    1 1.5 1.5
    2kN
    2
    2kN 5kN 4kN
    A
    (m)
    Fig. 1.2
    30
    °
    70°
    1 3
    40N
    60N
    (m)
    A
    Fig. 1.3
    40N
    2.5 1.5
    50N
    (m)
    A
    70°
    60°
    Fig. 1.4
    Nottingham Trent University 2/2 School of ArchDBE
  2. Determine the magnitude, direction and line of action of the
    resultant for the force systems shown in Figs. 2.1 and 2.4.3
    6kN 2 4kN 4kN (m)
    Fig. 2.1 1.5 1.5 2 3kN 6kN 4kN 4kN (m)
    Fig. 2.2 2 45° 4 10kN (m) 8kN 6kN Fig. 2.3 60° 2 8kN 2 2 8kN 8kN (m)
    20kN
    Fig. 2.4
    Ans: 1.1 -31kN.m; 1.2 -1kN.m; 1.3 136.4N.m; 1.4 21.1N.m

2.1 -14kN at 2.29m from 6kN
2.2 -9kN at 1.89m from 3kN
2.3 22.2kN at 3.05m from 8kN, θ = -71.4o
2.4 13.7kN at 12.87m from 8kN, θ = 137

Civil Engineering Subject Group

Assessment brief cover sheet for UG courses


Course(s): BSc (Honours) Civil Engineering (Full time)
Module name and code Introduction to Structural Engineering – DESN10046
Assessment number and
title
Assignment 1: Trusses
Assessment type and
weighting:
Individual Report (14% of the module)
Module leader Syed Mohyuddin
Module lecturer Fouad Mohammad
Issue date 15-10-2018 Submission date 03-12-2018
Submission format Hard copy submission by 8:45 am in Arkwright 113.
Feedback to be provided
by
14-01-2019


Module learning outcomes being assessed


 Select an appropriate solution strategy and apply it effectively to the
solution of problems in simple statics.
 Classify truss and beam structures as determinate or indeterminate and
describe the differences in behaviour of the two classes.
 Accurately apply an appropriate solution method for the analysis of
determinate truss and beam systems.
 Choose appropriate solutions to relevant numerical problems and solve
problems accurately.
Assessment criteria and weightings (if any):
1- Weighting of Question 1 is 40%
2- Weighting of Question 2 is 50%
3- Weighting for presentations of work is 10%
A grade conversion table is included as part of this assessment brief which
informs you how your marks for the work submitted will be translated to a
corresponding grade on the NTU scale

Nottingham Trent University 2/9 School of ArchDBE

For both questions:
 Excellent presentation of work with no section or part crossed out.
 Each step in the working out of calculations included
 Use of correct units
 Use of allocated questions and values of W, P, a and b
 Inclusion of sketches to support your calculations and as required
within the question.

Nottingham Trent University 3/9 School of ArchDBE
Introduction
This assignment consists of two questions. You have been allocated the
corresponding tutorial sheet questions for the first question and individual
values for the second question.
Question 1
Provide solutions to the tutorial sheet questions corresponding to the
individual numbers indicated in Table 1.
Table 1. Tutorial sheet questions and corresponding individual numbers for Q1.

Nottingham Trent University 6/9 School of ArchDBE
Question 2
Show that the plane truss illustrated in Fig. Q2 is statically determinate.
Using the values of W, P, a and b indicated in Table 2, find the forces in all
members of the truss and show these on a truss diagram.


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