Download presentation
Presentation is loading. Please wait.
Published byDominick Neal Modified over 9 years ago
1
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort Presentation for Panelized Systems UCSF Medical Center at Mission Bay
2
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort 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
3
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort 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 UCSF Medical Center at Mission Bay UCSF Medical Center at Mission Bay
4
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort 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
5
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort Pre-Fabrication Ideas: –Brain-storming session. Every idea was analyzed –Identified Constraints
6
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort Pre-Fabrication 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 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
7
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort Pre-Fabrication Potential Ideas: –Joint Racking for Plumbing & HVAC –Fire-stopping Systems –RE-Bar Cages –Pre-Fabricate Wall Panels
8
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort Drywall/Stud Modeling
9
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort 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
10
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort
11
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort 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…?
12
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort 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
13
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort 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
14
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort Panelized Systems In-fill –Traditional “stick framing” –King studs, infill above 9’6”
15
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort Installation Process Process: 1.Corner, Kong, & Top Track Placed 2.Panels laid in 3.In-fill framing comes behind. 4.Walls inspected and closed.
16
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort Alternate Installation Process Process: 1.Corner, Kong, & Top Track Placed 2.In-fill framing. 3.Panels laid in 4.Walls inspected and closed.
17
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort 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
18
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort
19
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort Floor Plan
20
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort Assembly Drawing Assembly Drawings Contain: –Individual Panels –Matched up –Total Wall Assembly with Infill Framing
21
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort Panelized Systems Combine panels & infill –Total wall system –Higher Quality –Shorter installation schedule
22
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort Panelized Systems
23
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort Panelized Systems
24
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort 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?
25
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort Advantages Quality Control Productivity Rate Productivity Tracking Waste Reduction Schedule Benefits = Cost Benefits
26
WE EXIST TO BUILD GREAT THINGS DPR Construction UCSF Mission Bay Pre-fabrication Effort What’s Next Currently Modeling Critical Studs Prior to Coordination Subs should be able to coordinate around studs supporting panels. To
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.