29 05 07 Introduction Project Description Design Requirements Project Approach Design Solution Conclusion Project Description Agricultural Training Facility in Obodan Ghana Obodan Sustainable Development Center OSUDEC Dr Anthony Akunzule Ghana GHANA OSUDEC ACCRA The Goal of OSUDEC OSUDEC will be an agricultural training facility providing participatory learning experiences that promote rural development Design Requirements Office Building Conference Hall Hostel Executive Chalets Caretaker House Project Approach 1 Preliminary Assessment 2 Codes Permits Regulations 3 Evaluation of Individual Buildings 4 Assessment of Construction Sequence 5 Geotechnical Analysis 6 Site Layout Final Design Architectural Floor Plans Foundation Design Wastewater Treatment Design Stormwater Drainage Design Utilities Masonry Design Structural Design Structural Drawings Construction Cost Estimate Preliminary Site Analysis Research Site Location Location of site in relation to Obodan Nsawam and Accra Topography and Geotechnical Information Engineers Without Borders collected soil samples Acquired a topographic from Teresa Aidoo Existing Utilities Engineers Without Boarders reported on exiting utilities Easily accessible Permits Codes and Regulations Ghana Building Code International Building Code National Design Specification for wood construction American Concrete Institute ASCE Minimum Design Loads Assessment of Construction Order Decision Matrix based on established criteria Cost Index Revenue Potential Non Structural Material Cost Necessity Recommendation of order Client ultimately makes final decision Template guide used for assessment Decision Matrix Revenue Potential 20 Non Structural Material Cost 10 Building Cost Index 30 Necessity 40 Weighted Average Conference Center 1 3 1 3 2 2 Hostel 1 2 1 2 1 6 Caretaker House 2 1 2 1 1 4 Executive Chalet 2 1 2 1 1 4 Geotechnical Analysis Soil samples were taken by EWB students during their visit in the summer of 2006 Samples were analyzed by Dr Ahiamadi of KNUST Soil has been classified as clayey sand with gravel Soil strength was found to be 2 000 pounds per square foot Site Layout Nkinkyim Site Layout Fly By Presentation 1 skp Architectural Plans We followed the Ghana Building Code and the IBC together The plans give needed egress water closets accessibility and fire ratings They include floor plans and building elevations They do not include plumbing electrical layout and finishing details Foundation Design Single story buildings have a stem wall under the base of the masonry walls The Hostel has interior footings to support the columns and the 2nd floor slab Foundations were sized so pressure would not exceed soil bearing pressure Footings were designed against shear bending and bearing failure Wastewater Treatment System OSUDEC Determination of wastewater flow 325 persons Septic Tank Two plastic septic tanks 24 hour hydraulic detention time Distribution Box Level to ensure even flow throughout leach field Leach Field 16 100 foot pipelines Stormwater Drainage Swales Collects water from inside complex walls Carry water outside walls to detention pond Detention Pond Size determined from chickens and agriculture demand Stage Storage relationship based on rainfall Stormwater Drainage Electricity Utilities Electrical grid access a tenth of a mile from OSUDEC Cost estimated at 5000 Internet Access Several Different options Geekcorp mission statement closely mirrors that of OSUDEC Network Computing Systems NCS local Ghanaian company Water Supply Drill a well Water tower Masonry Design Single story buildings use reinforced masonry for main structural support The Hostel uses reinforced masonry in combination with reinforced concrete for columns and floor slab We followed the Masonry Building Code Requirements Walls are designed against axial shear and bending failure Design Loads Structural Design Used the Ghana Building Code Loads for wind and earthquake Hostel Simplified Design Slab Reinforced concrete columns interaction diagram Reinforced stair design Roof Trusses Uniform style truss design Exception of Conference Center Loads considered Wind Uplift Dead Gusset Plates due to length of members MII20 plates considered Analysis Simple Truss analysis Axial Loads Buckling of members Cost Analysis Cost estimates taken from Means Manual 2006 Costs include structural materials and some miscellaneous Items Costs Do not include currently built buildings Brooder House and Office Building Total Direct Costs of Miscellaneous Expenses 70 000 Total Direct Costs of Conference Center 200 000 Total Direct Costs of Caretaker House 98 000 Total Direct Costs of Executive Chalet 277 000 Total Direct Costs of Hostel 624 000 Total Direct Costs of OSUDEC 1 269 000 Final cost of OSUDEC is 1 27 million U S dollars QUESTIONS