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Posts Tagged ‘engineering design brief

1        Conclusion

In this assessment, the team felt that they effectively incorporated into the EWB Project various modern civil engineering techniques, as well as careful environmental consideration.  The team also felt a level of passion for ethical action and social responsibility more than ever because of the project.

Furthermore, it was rather interesting to consider the different constraints on the engineering team because of the Tonle Sap context.  Although the team was initially non-skeptical about an American perspective to a Cambodia solution, they soon understood what really was required was a multicultural, multitalented, and multi-technological solution.

As the Cambodian economy grows, so will the specifications of the MFB.  As outlined previously, there is already some discussion on improvements of a possible second-generation MFB that uses even more lightweight material to increase buoyancy (thus load), as well as strength of material (thus product lifetime).

The MFB truly believes one person (or team) can change the world, and we hope the one which changes Cambodia, is the Modular Floating Bridge.

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Table of Contents

Executive Summary. ii

Letter to the Stakeholders. ii

Disclaimer v

Acknowledgments. vi

Table of Contents. viii

1     Table of Figures. x

1     Introduction. 2

1.1      SWOT Analysis. 4

1.2      Problem Definition. 4

2     Background. 7

2.1      Political 7

2.1.1       Increasing Use of Own Resources. 7

2.1.2       Dealing with Misappropriation. 7

2.2      Economic. 8

2.2.1       Access to Debt Finance. 8

2.2.2       Benefits to Industry. 8

2.2.3       Benefits to Community. 9

2.3      Social 9

2.3.1       “Free Lunch”. 9

2.3.2       Population Growth. 9

2.3.3       Culture. 10

2.4      Technological 10

2.5      Legal 11

2.6      Environmental 11

2.6.1       Climate Weather 11

3     Conceptual Design. 14

4     Design Analysis. 17

4.1      Alternative Analysis. 17

4.1.1       Pontoon Alternatives. 17

4.1.2       Bridge Alternatives. 21

4.1.3       Component Fixing Alternatives. 22

4.1.4       Anchoring Alternatives. 23

4.2      Selection Analysis. 24

4.2.1       Benefits. 24

4.2.2       Detriments. 25

4.3      Budget Analysis. 26

5     Final Design. 29

5.1      Polyethylene (Plastic) Drums. 29

5.2      Steel Brackets. 30

5.3      4”x6” Timbers. 31

5.4      Wooden Decking. 33

5.4.1       Extension Pieces. 34

5.4.2       “Branching” Pieces. 36

5.5      Handrails. 37

5.6      Anchoring. 37

6     Sustainability & Maintenance. 40

6.1      Environmental Impact of Materials. 40

6.1.1       Timber and Deforestation. 40

6.1.2       Marine Impacts. 40

6.2      Sustainability of Materials. 41

6.2.2       Disposal 43

6.3      Maintenance Strategy. 43

6.3.1       Inspection Methodology. 43

6.3.2       Special Maintenance Considerations for Susceptible Componentry. 45

6.4      Ethics. 46

7     Implementation Strategy. 48

7.1      Stakeholder and Customer Communications. 48

7.1.1       Marketing Mix. 48

7.2      Infrastructure Preparation. 52

7.3      Manufacturing Roll-Out 52

7.3.1       Quantity of Production. 52

7.4      Training. 52

7.5      Change Management 53

7.6      Problem Resolution. 54

8     Conclusion. 56

9     References. 57

 

 


1        Table of Figures

Figure 1.1: This is where Cambodia is located in  context of the World (University of Texas, 2009) 2

Figure 1.2: This is where the Tonle Sap is located in context  of Cambodia (Helsinki University of Technology, 2006) 2

Figure 1.3: An example of a stilted house, from Disney’s Bridge to Terrabithia. 3

Figure 1.4: A Beverly Hills road is complex in way of both design and construction. 3

Figure 2.1: For the same Supply curve, if the Demand of Cambodian wood increases,  the price will increase, thus deterring “exploit” pricing of Cambodian wood. 7

Figure 4.1: Poly Drum (ADCO Services, 2003) 17

Figure 4.2: Steel Drum (Global Industrial, 2009) 18

Figure 4.3: Canary North Quay Bridge, West India (Darkwaters, 2009) 18

Figure 4.4: Vera Katz Eastbank Esplanade and Floating Bridge (Bridge Stories, 2009) 19

Figure 4.5: Vera Katz Eastbank Esplanade and Floating Bridge (Bridge Stories, 2009) 21

Figure 4.6: Rolling Bridge designed by Heatherwick Studio Geekologie (2007) 22

Figure 4.7: “Hot-Swap” Super-Fast Connectivity (Scarlet Skunk Marine Services, 2009) 23

Figure 4.8: Lacy V Murrow Bridge (Seattle Daily Journal of Commerce, 2009) 23

Figure 5.1: Artist’s Visualization of a Polyethylene Drum.. 30

Figure 5.2: Artist’s Visualization of a Modified Bracket 30

Figure 5.3: Artist’s Visualization of a Drum Assembly. 31

Figure 5.4: Artist’s Visualization of a 4”x6” Timber 31

Figure 5.5: Artist’s Visualization of how a Timber fits into a Bracketed Drum.. 32

Figure 5.6: Artist’s Visualization of a notched timber section. 33

Figure 5.7: Artist’s Visualization of an assembly bridge module. 33

Figure 5.8: Artist’s Visualization of a wooden decking. 34

Figure 5.9: Artist’s Visualization of an assembly decking onto bridge module. 34

Figure 5.10: Artist’s Visualization of an extension piece (note wider decking is the only modification) 35

Figure 5.11: Artist’s Visualization of an extension piece and a standard piece interoperating. 36

Figure 5.12: Artist’s Visualization of a bridge branch piece. 37

Figure 5.13: Artist’s Visualization of how the Bridge reacts to changing water levels. 38

Figure 7.1: Advertising Bridge by Sihun Highway  (Huajian Rice Industry, 2007) 50

Figure 7.2: Users know they are buying “quality” when they spot the Hewlett Packard “HP” Brand As a result, bridges manufactured by “mfb” can be separately identified by that of a non-branded, non-certified nature.  In some ways, the culture, as well as entrepreneurial ship in MFB bridges could be reflected in other aspects of business in Cambodia as a result. 51

Figure 7.3: Bridge on Tonle Sap (TravelPod, 2009) 54