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Presentation for Panelized Systems UCSF Medical Center at Mission Bay. Presenters. Steve Spence: DPR General Superintendent Dan Casale: DPR BIM Engineer Project Team: University of California San Francisco DPR Construction Anshen & Allen Architects Cambridge Group. Project Background.

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Presentation Transcript
slide1

Presentation for

Panelized Systems

UCSF Medical Center at Mission Bay

presenters
Presenters
  • Steve Spence: DPR General Superintendent
  • Dan Casale: DPR BIM Engineer
    • Project Team:
    • University of California San Francisco
    • DPR Construction
    • Anshen & Allen Architects
    • Cambridge Group
project background
Project Background
  • UCSF Mission Bay Campus
    • Hospital – 650,000 SF – OSHPD 1
    • Outpatient Building – 250,000 SF – OSHPD 1/3
    • Energy Center – 20,000 SF
  • Total Value = $1.68 Billion
  • Target Budget = $1.58 Billion <$100M>
  • UCSF Medical Center at Mission Bay
scope of work
Scope of Work
  • Produce fully coordinated models that can be used to create OSHPD submittals for the Hospital / OPB and EC
  • Preconstruction Services Only
  • Currently over by $100M and team needs to address this
  • Use BIM / VDC and Lean Principles
pre fabrication
Pre-Fabrication
  • Ideas:
    • Brain-storming session.
      • Every idea was analyzed
        • Identified Constraints
pre fabrication1
Pre-Fabrication
  • Ideas that Don’t Work
    • Pre-Fab Bathrooms
      • Structure Won’t Allow It
    • Joint Racking
      • OSHPD Won’t Allow It
    • Pre-Fabbed Electrical Rooms
    • Med-Gas Rack
      • OSHPD Won’t Allow It
  • Ideas That Work
    • Industry Standard:
      • Pre-cut Conduit & MC
      • Pre-Punch Panels
      • Pre-fab J-Boxes
      • Trim for Fixtures
      • Bathroom Carriers
      • Pre-Spooled & Jointed Pipe
      • Pre-Section Duct
      • VAV & Attenuator Sections
      • Soffit Drops
      • Box Headers
      • Headwall Units
pre fabrication2
Pre-Fabrication
  • Potential Ideas:
    • Joint Racking for Plumbing & HVAC
    • Fire-stopping Systems
    • RE-Bar Cages
    • Pre-Fabricate Wall Panels
software
Software
  • Challenges:
    • Software Under-Developed
      • Automated Openings
      • Automate Backing
      • Further Develop Shop-Drawings
      • Pre-Fabrication
  • Benefits:
    • Much more efficient than traditional placement.
    • Identify King & Corner Stud Clashes
    • Identify Constructability Constraints
    • Facilitate Pre-fabrication Effort
panelized systems
Panelized Systems
  • Prefabrication
    • Currently performing feasibility analysis.
      • What’s the engineering say?
      • Can it be coordinated?
      • How many panels must be pre-fabbed to break even?
      • How big can they be?
      • Optimal height?
      • Schedule Impact?
      • Where should we target?
      • Etc…?
panelized systems1
Panelized Systems
  • Preliminary Research:
    • Labor Unions
    • Pre-Fabrication Site
    • Engineering Requirements
    • OSHPD Approval
    • Machine Proposal
  • Preliminary Answers:
    • Labor Unions must work locally
    • Pre-fab site subject to location constraints
    • Panels can span 8’ and are stronger than traditional walls
    • OSHPD is OK
    • Custom Machine can be built
panelized systems2
Panelized Systems
  • Hybrid system
    • Individual Panels
    • Up to 8’ in length
    • Target 6” above ceiling
    • Designed lengths for “layout framing”
    • Complete with
      • Backing
      • In-wall MEP
      • Top & bottom track
panelized systems3
Panelized Systems
  • In-fill
    • Traditional “stick framing”
    • King studs, infill above 9’6”
installation process
Installation Process
  • Process:
    • Corner, Kong, & Top Track Placed
    • Panels laid in
    • In-fill framing comes behind.
    • Walls inspected and closed.
alternate installation process
Alternate Installation Process
  • Process:
    • Corner, Kong, & Top Track Placed
    • In-fill framing.
    • Panels laid in
    • Walls inspected and closed.
target areas
Target Areas
  • Identify Repetitive Areas of the Floor Plan
  • Same Rooms= Repeating Panels
  • 10 Different Panels Used 100x’s
  • Vs.
  • 100 Panels Used 10x’s
assembly drawing
Assembly Drawing
  • Assembly Drawings Contain:
    • Individual Panels
    • Matched up
    • Total Wall Assembly with Infill Framing
panelized systems4
Panelized Systems
  • Combine panels & infill
    • Total wall system
    • Higher Quality
    • Shorter installation schedule
challenges
Challenges
  • Models for 3-6 have already been created and coordinated.
    • 30,000SF every 20 days.
  • Pre-fabrication was not addressed during these phases
    • Critical studs occur every 4’ in most patient rooms
  • Schedule Impact
    • What is the schedule impact? Are we more efficient? What are the productivity rates?
  • Engineering
    • Do panels have to match infill above?
    • How far can we span?
advantages
Advantages
  • Quality Control
  • Productivity Rate
  • Productivity Tracking
  • Waste Reduction
  • Schedule Benefits = Cost Benefits
what s next
What’s Next
  • Currently Modeling Critical Studs Prior to Coordination
  • Subs should be able to coordinate around studs supporting panels.
  • To