WHERE TO GO FROM HERE?

Transcription

1 WHERE TO GO FROM HERE? MODELING FOR STRUCTURES JOE BRENNER, P.E. GANNETT FLEMING, INC.

2 OVERVIEW Review of current model uses Possible future applications Why now? Challenges Benefits Conclusions 2

3 CURRENT USES Current model examples Visualization and public outreach Constructability and design investigation Clash/conflict analysis Quantities Communicate design intent 3

4 VISION OF THE FUTURE Digital delivery of models/information Interoperability between software Review of 3D shop drawing models Asset management applications 4

5 VISION OF THE FUTURE Digital delivery of models Digital models with critical bridge information Components tied into coordinate system and elevations Less paper Increase number of projects in which hardcopies are not the sole source of information 5

6 VISION OF THE FUTURE Interoperability between software Model used in detailing/design/fabrication/construction Past practice of silo-ed software development is reduced Recognition of inherent efficiencies in the process 6

7 VISION OF THE FUTURE Review of 3D shop drawing models Less duplicate effort Current process: 2D plans to 3D model for fabrication back to 2D shop drawings for review and approval Improved communication of design intent 7

8 Tanker Fire on May 2013 SR 22 EB TANKER FIRE Dauphin County PennDOT District 8-0 Fire resulting from overturned tanker truck Caused damage to the structure above Deemed necessary to replace superstructure Original steel shop drawings from 1975 were updated for current standards to expedite fabrication However, integral steel box girder was redesigned to eliminate fatigue prone welds in the fracture critical member 8

9 Project Location SR 22 EB TANKER FIRE Dauphin County PennDOT District 8-0 Fire resulting from overturned tanker truck Caused damage to the structure above Deemed necessary to replace superstructure Original steel shop drawings from 1975 were updated for current standards to expedite fabrication However, integral steel box girder was redesigned to eliminate fatigue prone welds in the fracture critical member 9

10 Project Location SR 22 EB TANKER FIRE Dauphin County PennDOT District 8-0 Fire resulting from overturned tanker truck Caused damage to the structure above Deemed necessary to replace superstructure Original steel shop drawings from 1975 were updated for current standards to expedite fabrication However, integral steel box girder was redesigned to eliminate fatigue prone welds in the fracture critical member 10

11 General Plan SR 22 EB TANKER FIRE Dauphin County PennDOT District 8-0 Fire resulting from overturned tanker truck Caused damage to the structure above Deemed necessary to replace superstructure Original steel shop drawings from 1975 were updated for current standards to expedite fabrication However, integral steel box girder was redesigned to eliminate fatigue prone welds in the fracture critical member 11

12 General Plan SR 22 EB TANKER FIRE Dauphin County PennDOT District 8-0 I-81 NB Ramp B Structure Fire resulting from overturned tanker truck Caused damage to the structure above I-81 SB Deemed necessary to Routes replace 22/322 EB Overhead superstructure Structure Approximate location of overturned Tanker Truck Original steel shop drawings from 1975 were updated for current standards to expedite fabrication However, integral steel box girder was redesigned to eliminate fatigue prone welds in the fracture critical member 12

13 Pier 1: Integral Steel Box Girder SR 22 EB TANKER FIRE Dauphin County PennDOT District 8-0 Fire resulting from overturned tanker truck Caused damage to the structure above Deemed necessary to replace superstructure Original steel shop drawings from 1975 were updated for current standards to expedite fabrication However, integral steel box girder was redesigned to eliminate fatigue prone welds in the fracture critical member 13

14 Pier 1: Integral Steel Box Girder SR 22 EB TANKER FIRE Dauphin County PennDOT District 8-0 Fire resulting from overturned tanker truck Caused damage to the structure above Deemed necessary to replace superstructure Original steel shop drawings from 1975 were updated for current standards to expedite fabrication However, integral steel box girder was redesigned to eliminate fatigue prone welds in the fracture critical member 14

15 Pier 1: Integral Steel Box Girder SR 22 EB TANKER FIRE Dauphin County PennDOT District 8-0 Fire resulting from overturned tanker truck Caused damage to the structure above Deemed necessary to replace superstructure Original steel superstructure design from 1975 was reused to expedite fabrication However, integral steel box girder was redesigned to eliminate fatigue prone welds in the fracture critical member 15

16 3D Shop Model SR 22 EB TANKER FIRE Dauphin County PennDOT District 8-0 Fire resulting from overturned tanker truck Caused damage to the structure above Deemed necessary to replace superstructure Original steel shop drawings from 1975 were updated for current standards to expedite fabrication Source: High Steel Structures However, integral steel box girder was redesigned to eliminate fatigue prone welds in the fracture critical member 16

17 3D Shop Model SR 22 EB TANKER FIRE Dauphin County PennDOT District 8-0 Fire resulting from overturned tanker truck Caused damage to the structure above Deemed necessary to replace superstructure Original steel shop drawings from 1975 were updated for current standards to expedite fabrication Source: High Steel Structures However, integral steel box girder was redesigned to eliminate fatigue prone welds in the fracture critical member 17

18 3D Shop Model SR 22 EB TANKER FIRE Dauphin County PennDOT District 8-0 Fire resulting from overturned tanker truck Caused damage to the structure above Deemed necessary to replace superstructure Original steel shop drawings from 1975 were updated for current standards to expedite fabrication Source: High Steel Structures However, integral steel box girder was redesigned to eliminate fatigue prone welds in the fracture critical member 18

19 Approved Shop Drawings SR 22 EB TANKER FIRE Dauphin County PennDOT District 8-0 Fire resulting from overturned tanker truck Caused damage to the structure above Deemed necessary to replace superstructure Original steel shop drawings from 1975 were updated for current standards to expedite fabrication However, integral steel box girder was redesigned to eliminate fatigue prone welds in the fracture critical member 19

20 VISION OF THE FUTURE Asset management applications Model continually updated from preliminary engineering through construction Lifecycle use of model Field inspection uses Future rehabilitation work 20

21 WHY NOW? Vision of the future MAP 21 Funding FHWA Every Day Counts Initiative PennDOT SOL Technology advancements Other industry models 21

22 STEPS TO FURTHER IMPLEMENTATION Collaboration between industry sectors Determining model content for each stage of project Data exchange standards 22

23 CHALLENGES Resistance to change Lack of standards/best practices guidelines Training required QA/QC of models Legal implications 23

24 BENEFITS Increased overall efficiency by linking design/detailing data to downstream applications Redundant data re-entry reduced Fewer change orders and field modifications (clash detection) Conflict resolution early in process 24

25 BENEFITS Better visualization representation of design intent early in process Quantity calculations byproduct of model Use in virtual construction site plan - crane placement, safety equip. locations, coordination of activities in 4D (ABC) And more... 25

26 CONCLUSIONS Potential benefits outweigh the challenges 3D models have inherent advantages and efficiencies compared to traditional 2D It will take time to realize full potential of these models; however, it must start now! 26

27 QUESTIONS? Source: High Steel Structures 27