please ask expert if they can do itCIVE 1179- STEEL STRUCTURES 1 INSTRUCTIONS AND MARKING SCHEME FOR...

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please ask expert if they can do itCIVE 1179- STEEL STRUCTURES 1 INSTRUCTIONS AND MARKING SCHEME FOR LAB STEEL BEAM PROJECT  The purpose of this project is to provide a project based learning approach to link the theoretical concepts learned in the class and apply the same to practical structural elements.  ( 1 ) Contents 1. TASK 1 – STEEL BEAM DESIGN 2. TASK 2 – FABRICATION AND TESTING DEMONSTRATION 3. LAB REPORT MARKING SCHEME STEEL BEAM DESIGN Objectives: To design a steel beam and compare with a tested beam Team: This is a group activity. You are part of a team of 4-6 members. 1. Background A steel structure can be conceived as an assembly of beams, columns and struts/ties connected in space. Geometric I- shapes are common cross sections. “I” section is considered as the most efficient geometric cross section for beam members. It is important to understand why the structural elements are manufactured the way they are, their performance and their failure mechanisms in order to understand the design of steel structures. This experiment involves designing, fabricating and testing an “I” beam. You are also required to document your design. 2. Specifications (Beam designs outside the following specifications will be disqualified) · Cross section is an I-beam · Total Length of beam 800 ±5 mm · Maximum number of stiffener plates – 8 numbers · Maximum number of rivets – 50 Complete a geometric cross section design of an I-beam, with total width of outstand flanges not less than 1/3 of overall width of section. Box sections are not permitted. Fabricate the beam only using the following material. 1. Two sheets of 0.790mm (22Ga) thick x 150mm wide x 800mm long 2. One additional sheet for stiffeners 3. Series C200 Steel Pop rivets (require 4mm diameter hole) Material properties: · Yield strength of sheets, fy = 260 MPa · Ultimate strength of sheets, fu = 340 MPa Nominal shear capacities of one C200 rivet (failure through bearing) · Single Lap - Yield load, Vy =1.56 kN per rivet, Ultimate load , Vu = 1.83 kN per rivet · Double Lap - Yield load, Vy =1.76 kN per rivet, Ultimate load , Vu = 2.79 kN per rivet You need to determine optimum geometric properties of the beam such as flange width, flange thickness, web depth and web thickness you can achieve with the material provided. Theoretically, it can be shown that the load carrying capacity and the deflection control of an “I” beam depend on the overall beam depth. It would pay-off to study commercially available UB sections – from BHP product range – for fully optimized aspect ratios such as beam width to depth ratio, flange thickness to web thickness ratios, compactness etc in your geometric design. Overall length of the beam should be 800mm and beam span 650mm between supports as shown in Figure 1. Load is applied via a 50mm wide steel plate. 	 You are expected to try out different geometric configurations (couple of options) in selecting the best design and verify local failure mechanisms such as flange and web plate buckling. Different geometric options can be compared for performance using theoretical methods. Use load capacity vs. deflection of the beams and the stresses within flanges and web plates to investigate the better option. This can be achieved by manual methods using AS4100 - steel beam design guidelines. If you want to be competitive then you need to minimize reserve/over strength along the beam and use material provided effectively where appropriate. To be competitive, identify a COMPACT beam section such that its flexural behavior is not affected by local buckling. In addition, to minimize the risk of lateral-torsional buckling the product of moment modification factor and slenderness reduction factor, αmαs should be close to 1.0. To prevent local web crushing / buckling you need to consider providing stiffeners to the web at point load locations. Your optimum configuration leading to fabrication and testing should satisfy both serviceability criteria (deflection) and the strength criteria. Setting up of an Excel spread sheet is the smart way to save time as you may be able to change some design parameters and automate your computations. Possible configurations to start thinking (not limited), When design is completed prepare a “shop drawing” to-scale – a drawing with clearly dimensioned details including cutting and folding lines, rivet locations for drilling holes etc. 3. Fabrication and Testing – Online demonstration Workmanship and eye for detail would greatly influence the performance of your designed beam when tested. Fabrication would involve cutting and folding of steel sheets, drilling for rivets and riveting. You will be shown how to carry out all these activities. Testing of one steel beam will be demonstrated online. Definition of failure loads: · Serviceability load: mid-span deflection = span/250 = 650/250 = 2.6mm · Ultimate load: peak load in entire load history 4. Design repor 1. TASK 1 – PREPARATION (The following table sets out the instructions and FAQ for lab project) 	Student Role 	Lecturer Role 	Remarks 	1. Form a group of 4-6, and sign-up yourself in one of the groups in “Steel Lab” on Canvas by 20th March. [Need not be in same tut group] – Select a leader (No extra marks for being a leader; just helps with organizing). 2. Work allocation (Note: Peer assessment exists). 3. It is expected that you will work cohesively within a team (I did all the work and they did nothing or they didn’t inform me, didn’t reply my texts is not acceptable). 	1. Anyone who fails to join a group by 20th March will be assigned to a random group. 2. Susanna/Sathees can help with your questions on design. 	1. You must have a record of communications. 2. Negotiations if any will need to be discussed with Susanna and a solution identified. This email and other supporting documents must be printed and provided in the Appendix. 2. TASK 2 – LAB REPORT (Submission of a FULL report on the above Tasks) PART A: ROLES 	Student Role 	Lecturer Role 	Remarks 	1. Submit a report with a cover page (student numbers, group number, full name and course details), a content page of calculations, results and communications, peer assessment in the appendix - indicate contribution of each member. 2. In addition, following detailed calculations are to be included in the report - all typed or neatly written with key results marked on the structure: 3. Beam design calculations with all necessary references and sketches and drawings. 4. Submit the above as a pdf document (as Lab report_Group Number) on to Canvas before Due date. If you over-run 	1. Tutor will provide group feedback via Canvas or to an individual. 2. Marks will be uploaded onto Canvas from Week 12 and completed before Week 13. If any information pending, Susanna will seek clarification via email. 	1. Page limit min 5 to max 20 applies for the report. 	the due date, you can still submit with penalty as explained in Part B. 5. Additional task: Please Complete CES. 	 	 PART B: MARKING (satisfactory completion of fabrication and testing) 	Full 30 marks 	Between and including 15 marks and 29 marks

CIVE 1179- STEEL STRUCTURES 1 INSTRUCTIONS AND MARKING SCHEME FOR LAB STEEL BEAM PROJECT The purpose of this project is to provide a project based learning approach to link the theoretical concepts...

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