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Green Building at 33rd and Chestnut

Green Building at 33rd and Chestnut. Group 23: Andrew Good Brad Ryals Bill Curran Andrew Hale Advisor: Professor Lou DaSaro. Background. -Drexel University -Need for Integrated Sciences Building -Designed and operated with an environmentally conscious approach

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Green Building at 33rd and Chestnut

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  1. Green Building at 33rd and Chestnut Group 23: Andrew Good Brad Ryals Bill Curran Andrew Hale Advisor: Professor Lou DaSaro

  2. Background -Drexel University -Need for Integrated Sciences Building -Designed and operated with an environmentally conscious approach -Preliminary architectural layout -Commitment to increased energy efficiency and development of a sustainable environment

  3. Problem Statement Understand architectural, spatial, and occupational requirements of Drexel’s Integrated Sciences Building. Generate engineered designs for all major building systems in a fashion consistent with Drexel’s green desires.

  4. LEED Checklist -Means of quantifying achievement of green and sustainable goals: LEED Accreditation -Project Goal: Silver Status Summary of LEED point goals

  5. Site Background -Location: -NE Corner of S.33rd & Chestnut St. Philadelphia, PA -Area of lot: 1.03 acres -Current Conditions: -Parking lot -Sidewalk -Grass

  6. Site Background -Photos: Existing Sidewalk Site Location: View from SW Existing Parking Lot

  7. Site Background Sociologic -College campus Demographic Mostly 18-24 year olds Geologic -Schist Topographic: -Elevations +47 to +42 Economic -Parking revenue

  8. Site Background -Storm water runoff -Minimize increase -Utilities: -Relocation required -Subsurface Obstructions: -Septa R.O.W -Korman Center Basement

  9. Design Constraints -External criteria -Project-specific criteria

  10. External Criteria Uncontrollable factors innate to site placement -Location of Philadelphia -Immediate external constraints due to: -Geographic region -City requirements -Site conditions

  11. External Criteria -Geographic region constraints: -Rainfall -Wind -Seismic -Climate

  12. External Criteria -Average yearly rainfall: Philadelphia, Pa -2007 World Book Encyclopedia - 44 to 48 inches

  13. External Criteria -Wind speed: Philadelphia, PA -IBC 2006 Figure 1609 - 90mph

  14. External Criteria -Seismic -IBC 2006: -Spectral response acceleration for short period (0.2sec) -Ss=0.35 -Spectral response acceleration for 1 sec period -S1=0.08 Values will be used with site coefficient values to calculate design spectral response acceleration.

  15. External Criteria -Climate: Philadelphia, PA -IECC 2006 Section 301 -Climate zone 4A

  16. IECC 2006 TABLE 301.3(2) INTERNATIONAL CLIMATE ZONE DEFINITIONS External Criteria -Climate zone 4A

  17. External Criteria -City Requirements: -Philadelphia Building Code 2007 -International Building Code 2006 -International Fire Code 2006 -International Mechanical Code 2006 -International Energy Conservation Code 2006 -ICC Electrical Code

  18. External Criteria -Site conditions: -Depth of bedrock -Ground water table -Soil composition

  19. External Criteria -Geotechnical investigation: -Bedrock at 34’ -GWT at 14’-17’ -Composition: fill, silty sand, schist bedrock

  20. Project-Specific Criteria Constraints established by the client Client: Drexel University -Spatial requirements -Improved energy efficiency -Model of green building technology -Architecture consistent with campus -Minimal cost

  21. Project-Specific Criteria Spatial Requirements: -20,500 SF Office space -11,200 SF Classrooms -50,000 SF Laboratory space

  22. Project-Specific Criteria Modified footprint: -25,000 SF Office space -12,000 SF Classrooms -48,000 SF Laboratory Space

  23. Project-Specific Criteria Original Footprint Improve energy efficiency: -Atrium requires gross excess of conditioned air. Adjusted Footprint

  24. Footprint Efficiency-Equest Simulation Energy Saving Electric: 40% Gas: 30%

  25. Project-Specific Criteria Model of green building technology: -Incorporate green building techniques -Utilize LEED certification system to quantify the degree of sustainability

  26. Law Building Race Street Dorm Bossone Center Project-Specific Criteria Architecture consistent with new buildings:

  27. Project-Specific Criteria Minimal cost: -Value engineered design within budget -Justify increased initial cost with decreased operating costs

  28. Initial Design Concepts Major systems: -Site -Structural -Mechanical -Electrical -Plumbing Must satisfy external and project-specific criteria as efficiently as possible.

  29. Initial Site Design Introduction: Site design determines impervious areas, placement of walkways, and the extent of landscaping.

  30. Initial Site Design System requirements: -Adequately handle storm-water - 100 yr 24 hour rainfall ≈ 7” -Facilitate efficient pedestrian circulation - Estimated 1,300 pedestrians / hr -Utilize site area and provide welcoming appearance

  31. Initial Site Design System Alternatives: -Porous concrete walkways Pros: Level walkway, aesthetic Cons: Increased heat island effect -Pervious Concrete Pros: Promotes vegetation Cons: Requires maintenance

  32. Initial Site Design System Alternatives: -Green roof Pros: Direct use of water collected Cons: Maintenance costs -Rainwater Harvesting Pros: Low cost, recycles water Cons: Not aesthetically pleasing

  33. Initial Structural Design Introduction: Structural design determines how loads exerted on the building will be directed to the foundation system.

  34. Initial Structural Design System requirements: -Provide adequate resistance to loads. -Live loads (IBC 2006): 100psf-corridors on 1st floor, 80psf- 2nd floor corridors and above, 40psf-classrooms -Dead loads: 70psf-roof, 95psf-floors -Wind loads: -12.7psf sidewalls, 14.5psf windward, -9psf leeward -Seismic loads: 50psf exerted on veneer -Must not disrupt serviceability. -L/360 deflection

  35. Initial Structural Design System alternatives: -Framed structural system Pros: Quick construction Cons: Expensive -Load bearing structural system Pros: Simple design Cons: Limited span length Framed structure > Load bearing structure

  36. Initial Structural Design System alternatives: -Concrete Frame Pros: Regional, recycled material Cons: Progress susceptible to weather -Steel Frame Pros: High strength to weight ratio Cons: Long lead time

  37. Initial Mechanical Design -Introduction: Mechanical design determines the type and sizing of heating and cooling equipment. -Outdoor design temperatures: Winter: 0 F Summer: 95 F -Indoor design temperatures: Winter: maximum of 72 F Summer: minimum of 75 F

  38. Initial Mechanical Design System Requirements: -Sensible/Latent loads -People: 0.6 MBtu/h -Lights/Equipment: 2.4 MBtu/h -Ventilation: 27,000 CFM Based on ASHRAE approximations

  39. Initial Mechanical Design System Alternatives: -Geothermal Heat Pump Pros: Uses groundwater for heat exchange Cons: Additional excavation -VAV system Pros: Variability of flow to spaces Cons: High energy to provide cooling

  40. Initial Electrical Design Introduction: The electrical system needs to be able to power the building’s lighting and equipment (Lab, HVAC, and Office)

  41. Initial Electrical Design System Requirements: -Electrical Lighting Demand -Classrooms 1.2 W/sf -Offices 1.0 W/sf -Electrical Equipment Demand -Offices 0.81 W/sf IECC 2006 & ASHRAE Fundamentals

  42. Initial Electrical Design System Alternatives: -Solar power Pros: Lower demand charges Cons: Variable supply -Wind power Pros: Reduce dependence on non- renewable energy Cons: Not aesthetically pleasing

  43. Initial Plumbing Design Introduction: The plumbing system distributes potable water to the building fixtures and also is responsible for removing wastewater.

  44. Initial Plumbing Design System Requirements: Estimated Minimum Plumbing Facilities -Toilets: 30 (Max 1.6 gpf) -Lavatories: 30 -Lab Sinks: 60 IBC 2006& from GRCH, Inc. Lab study

  45. Initial Plumbing Design System Alternatives: -Grey water system Pros: Effective water resource management. Cons: Additional piping required. -Conventional sanitary system Pros: Standard procedure - zero learning curve. Cons: Increases strain on regional sanitary sewer system.

  46. -Project and design budget -Design schedule Project Planning

  47. Project and Design Budgets

  48. Design Schedule

  49. Race Street Dorm Pic: http://www.drexel.edu/depts/pdc/pages/projects.asp Law Building Pictures: http://www.drexel.edu/law/law-building.asp Bossone Building Pictures: http://www.drexel.edu/univrel/events/bossone.asp LEED Logo: http://danielsandhouse.com/images/LEED_logo.gif Cut cost: https://www.storesonlinepro.com/files/1701548/uploaded/cut%20costs.jpg Electric: http://www.hse.gov.uk/workplacetransport/images/warning-electricity-2.gif Plumbing: http://discussion.autodesk.com/servlet/JiveServlet/download/188-544838-5548548-150193/plumbing_system.png Plumbing Aerial Site photo: http://maps.google.com/maps?ie=UTF-8&tab=wl Geologic map: http://www.sas.upenn.edu/earth/new.html Topographic map: http://www.drexel.edu/depts/pdc/pages/topographic.asp Precipitation map: http://www.worldbook.com/wb/Students?content_spotlight/climates/north_american_climate_pennsylvania References

  50. Acknowledgments We would like to thank the following individuals for their contributions and guidance this term: Professor DaSaro Professor Mitchell Dr. Martin Mr. Warren Waldorf

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