• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Analytical Methods to Analyse Building Services

Extracts from this document...


Unit 3 Analytical Methods Task 4 - Analytical methods to analyse building services P4a) a) Define the following terms, specifying units and equations. Include illustrative diagrams, - Stress; (Taken from http://www.en.wikipedia.org) Stress, defined as force per unit area, is a measure of the intensity of the total internal forces acting within a body across imaginary internal surfaces, as a reaction to external applied forces and body forces. The SI unit for stress is the Pascal (symbol Pa), the same as that of pressure. Since the Pascal is so small (1 N/m2), engineering quantities are usually measured in megapascals (MPa) or gigapascals (GPa). In Imperial units, stress is expressed in pounds-force per square inch (psi) or kilopounds-force per square inch (ksi). The formula to work out the force being applied to an area is; ? = F - Stress = Force A Area Tensile strength (stress) ?UTS, or SU measures the stress required to pull something such as rope, wire, or a structural beam to the point where it breaks. The tensile strength of a material is the maximum amount of tensile stress that it can be subjected to before failure. The definition of failure can vary according to material type and design methodology. This is an important concept in engineering, especially in the fields of material science, mechanical engineering and structural engineering. ...read more.


Below is a diagram of part of a roof truss. You as the structural Engineer have been asked to determine the resultant force Drawing 2 To determine the resultant force I must convert the diagram shown in drawing 2 and change it to a parallelogram, shown in drawing 3 Drawing 3 To continue with the calculation I need to find the angles I have shown this below in drawing 4. Drawing 4 So, to calculate the force on the resultant I must use the cosine law, as I now have the angles relevant to the Resultant. The cosine law is: a2 = b2 + c2 - 2bc cos A So, a2 = 82 + 52 - 2 x 8 x 5 cos 100� = 64 + 25 - ( -13.89) = 89 + 13.89 = 102.89 = V 102.89 = 10.14KN The resultant force is 10.14 KN P4b) Use the principals of calculus to solve problems appropriate to construction, civil engineering and building services engineering. a) Integrate each of the following with respect to x: .i) 6x2 - 4x + 3 ii) 1 / Vx iii) Vx3 i) When using the principals of calculus the equation looks like this; dy = 6 x 2 - 4 x 2 + 3 dx When integrated it becomes Y= 6x 3 - 4 x 2 + 3c 3 2 ii) ...read more.


- 3400 r -2 = 3400 r -2 = 4 ?r = 3400 = 4 ?r r2 3400 = 4 ?r x r2 3400 = 4 ?r 3 3400 = r3 4 ? To be able to continue with this calculation I must use the figures I have find through the previous formulas, so; 3400 = r 3 12.56 = 270.703 r = 3V 270.70 = 6.47 Height = 1700 ?r2 = 1700 3.14 x 6.52 = 1700 132.73 = 12.81 To be able to find the least surface I must differentiate again; da = 4 ?r + (- 3400r -2) dr = 4 ? + 3400 r-3 = 4 ? + ( 2 x 3400 r-3) = 4 ? + 6800 r-3 = 4 ? + 6800 r3 = 4x 3.14 + 6800 274.62 = 24.81 (D3c) Convergent and lateral thinking has taken place (D3d) Problems have been solved Below shows a member of a roof truss, as the structural engineer you have been asked to calculate the resultant forces Drawing 6 As with (P4c) I must turn drawing 6 into a parallelogram, illustrated in drawing 7; Drawing 7 a2 = b2 + c2 - 2 x 20 x 5 Cos 90� a2 = 202 + 102 - 2 x 20 x 5 COS 90� = 500 - 0 = 500 = V500 = 22. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Miscellaneous section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Miscellaneous essays

  1. Personal statement- Engineering. My determination to study engineering, especially mechanical engineering, stems from ...

    As the Financial Director I discovered that a product or a service, perhaps a design or a solution by an engineer, has to not only serve its purpose but also be economically viable. In addition to this I have been a mentor for top year 11 students which has improved my communication skills.

  2. Planning, Design and Production Phases of the Construction Industry

    By way of ensuring the regulations are being applied a risk assessment of the site will have to be undertaken, and all possible dangers and how they can be avoided or eliminated must be detailed. At the end of a project a Health and Safety file is compiled showing the

  1. Uniformed Public Services Unit 1 Assignment 1

    In Derbyshire for example, as well as Derbyshire County Council, there are eight other Councils covering smaller areas, such as Amber Valley Borough Council, Bolsover District Council and Chesterfield Borough Council. On a smaller level there may be Parish or Community Councils.

  2. Travel and Tourism Unit 8 Task A

    A group of Moroccan, Syrian and Algerian Muslims were later charged with involvement in the attack. In July 2007, three bombs exploded on three London Underground trains and a fourth exploded on a bus in Tavistock Square in London. The bombings killed 52 people and injured around 700.

  1. Principles of the Building Control System

    Fire or sewage. The local authority must then issue a final decision within five weeks, or if agreed a maximum of two months from the date of deposit. If the plans are all correct and comply with the necessary building regulations a notice will be issued stating that they have

  2. Leisure Studies- Unit 5- A02

    Badminton 2 no data Many other activities represented less than 1% of respondents' time. Table 2 Leisure activities carried out in the past four weeks - all persons aged eight and over Activity Percentage of respondents who carried out activity in past four weeks Average time spent on activity in past four weeks (minutes)

  1. Physical preparation and fitness for the uniformed services

    and results in indigestion and a burning sensation. Meat, fish, eggs and other concentrated proteins can aggravate acidity. Excess sugar can also result in gut infection. If the gut contains the wrong type of bacteria, or perhaps overgrowth of a yeast organism such as candida albicans- a high sugar diet can aggravate this problem.

  2. Public Services Unit 3, Citizenship

    To become a police officer there are national requirements. Recruits must be British citizens, EC/EEA national or Commonwealth citizens or foreign nationals with no restrictions on their stay in the U.K Leicester is the most diverse city in the U.K and Europe.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work