Hi I'm after a quote for this. I have included the assessment task sheet, the results and the learnt theory for the week in case required.
Beam Order Photo 1 Photo 2 Beam 1 Beam 2 Beam 3 Beam 4 Beam 5 Beam 6 Beam 7 Beam 8 Beam 9 Beam 10 Beam 11 Beam 12 Beam 13 Beam 14 Beam 15 Beam Order Student ID Given Names Surname Last weight held (kg) Beam 1 330595 HAAMID PARVEZ 17.5+ (Ran out of weights) Beam 2 332986 DHYEY VEGDA 5.0 Beam 3 331348 TUONG HO 6.5 Beam 4 318095 ANGELIN LU 8.0 Beam 5 345383 CH MUHAMMAD JABBAR 11.5 Beam 6 339065 YEUNG LAU 6.0 Beam 7 302963 GEORGE KALITSIS 2.5 Beam 8 330097 PRATIK KARDANI 11 Beam 9 331113 ZIYI WANG 4 Beam 10 330415 NICHOLAS GLINATSIS 1 Beam 11 145353 TONY BURNETT 2 Beam 12 326624 CHATURA GABADAGE DON 12 Beam 13 317896 JIAFAN ZHANG 2 Beam 14 339244 YU LIU 7.5 Beam 15 319433 DIANA URIBE VACA 8.5 Build up beam ENG215 Surveying and Construction Practical - Beam Types Aim For a given loading situation, observe the failure of a range of different beams and hence determine the most efficient beam type. Design A beam is to be designed and built to carry the largest point load possible at mid span. The beam design should consider: ▪ Materials: two sheets of 1.5mm x 70mm x 915mm balsa wood and super glue are provided for the construction of the beams. ▪ The beam will span 550mm, (this means that the hole will be 550mm, so the beam needs to be a little longer, e.g. 600mm long to sit on the supports). ▪ The design should also consider how the beam will be constructed, making best use of the materials provided, and taking into account the means of applying the load. Note, this practical exercise is intended to test beams and not bridges or arches. Please consider a beam cross-section only. Practical Setup: To decide on the beam type, recall the theory on beams presented in the lecture on beams. From this, obvious cross sections include rectangular (solid or hollow) or “UB” (varying depth and flange width), but other types of beam may also be considered. (Note, you are looking to create a beam for this exercise, not an arch or bridge structure.) For the chosen beam section, it may be advantageous to consider also the effect of varying the cross sectional area along the length of the beam. Note that for this part of the exercise, there is no “right” answer – the idea is to have a variety of beam types available for comparison. Construction The selected beam design should be constructed in the first week of this exercise, so that it is ready for testing in the week following construction. Testing & Results All beams will be tested a week after they have been made. Testing will be to destruction, by applying a point load in the centre of the beam. The load will hang from a string loop over the beam, and local aluminium reinforcing will be placed under the string loop to prevent the string cutting through the balsa wood. All students should observe all beams, so that a report discussing the behaviour of all beams can be written. In particular, take note of the following: ▪ Beam configuration and use of materials ▪ Load carried ▪ Mode of failure (localised, general, buckling of top/bottom flanges, shear failure, etc) 550mm gap Beam Report All reports should be presented in a professional report format, refer to the CDU website for more guidance if required. Please submit all documents as a .pdf document (marks will be deducted for other formats). An individual report on the findings of all the beams tested is required – the results for all beams will be made available to all students. The following discussion points must be addressed within your report: ▪ compare the behaviour of the various beam types and use of materials ▪ discuss what is thought to be the most efficient beam type and why. Compare this to the known theory. ▪ consider the ease of construction of various beam types, results should be compared to beams which are used in actual construction – is the type of beam found to be most efficient in this exercise commonly used in construction, and if not, then why not? ▪ comment on other relevant factors. Reports should be approx. 1,000 words covering all the above items, be concise. Due one week after the practical work has been completed. This report is worth 5% of the total marks for this unit. Marking Item 5 marks 4 marks 3 marks 2 marks 1 or 0 marks Report Writing and Presentation (20%) Structure and Layout Excellent logical structure, physical layout and appropriate attention to detail. The work is presented accurately, concisely and coherently. Meets the report specification Good logical structure, physical layout and attention to detail. The work is presented accurately and coherently. Meets the report specification Acceptable structure and physical layout. Could be more attention to detail. The work is presented in a mostly accurately and consistently. Meets the report specification Poor structure and physical layout. Some inaccuracies in detail and presentation of work, or does not meet the report specification Structure and physical layout detract from the quality of the document. Many inaccuracies in detail and presentation of work, or does not meet the report specification Spelling and Grammar No spelling mistakes or grammatical errors. If references are used, they are relevant, creatively sourced and accurately acknowledged Very few spelling mistakes or grammatical errors. If references are used, they are relevant and accurately acknowledged Some spelling mistakes or grammatical errors. If references are used, they are mostly relevant and generally accurately acknowledged Many spelling mistakes or grammatical errors. If references are used, they are relevant, but with some inconsistencies in acknowledgement Numerous spelling mistakes or grammatical errors, which detract from the quality of the document. References are not relevant, or plagiarised or unacknowledged Report Content (80%) Results Excellent presentation of results and comments for easy comparison. Good presentation of results and comments for comparison. Adequate presentation of results and comments for comparison. Messy presentation of results and comments for comparison. Little or no presentation of results and comments for easy comparison. Discussion & Conclusions Excellent description of the behaviour of the different beams, discussion and reasoning behind the theory. All discussion points addressed. Good description of the behaviour of the different beams, discussion and reasoning behind the theory. Most discussion points addressed. Mediocre description of the behaviour of the different beams, discussion and reasoning behind the theory. Most discussion points addressed. Limited description of the behaviour of the different beams, discussion and reasoning behind the theory. Some discussion points addressed. Limited description of the behaviour of the different beams, discussion and reasoning behind the theory. Few discussion points addressed. Improveme nts/ recommend ations Full and complete statement of what may have been done wrong (if anything), improvements that could have been made. Statement of what may have been done wrong (if anything), improvements that could have been made. Mention of what may have been done wrong (if anything), improvements that could have been made. Limited mention of what may have been done wrong (if anything), improvements that could have been made. No mention of what may have been done wrong (if anything), improvements that could have been made. Slide 1 ENG 215 Surveying and Construction Lecturer: Joanna Winslade Welcome ENG215 - Surveying & Construction Semester 1 1 Week 2 Beams (and arches) ENG215 - Surveying & Construction Semester 1 2 Recap r h θ σmax σmax Fc Ft neutral axis (The general expression for all beam sections is M = σmaxI/Y, where I is the moment of inertia and Y the distance from the neutral axis to the outside of the beam.) A point load P applied in the centre of a simply supported beam of length L generates a maximum moment of PL/4 in the beam (remember from Statics…). This moment is resisted by the internal moment of resistance which is equal to the internal lever arm (2h/3 for a rectangular beam made of an elastic material) times the force equivalent to the internal stress Fc (or Ft) ie PL/4 = Fc2h/3 Or, if a beam spans 20 times its depth, then Fc (or Ft) are 7.5 times the applied load P. So beam materials need to be very strong… Magnitude of forces developed internally in a beam ENG215 - Surveying & Construction Semester 1 3 One way to have beams carry a larger load is to use stronger materials for the beam. Alternatively, consider the internal moment of resistance: M = kbh2σmax (for rectangular cross section beams) It can be seen that the moment varies directly with the width of the cross section and with the square of the