bim理論2機(jī)場航站樓案例by eastman

1、Case StudyMaynard Holbrook Jackson Jr. International Terminal Holder Construction Group LLCRendering 1: Birdseye ViewKaleigh FordCOA 8833 ESpecial Topic Design and Technology Building Information MingProfessor Charles EastmanAssignment Project One April 30, 2009The Maynard Holbrook Jackson Jr. Inter

2、national Terminal is currently underconstruction on the east side of Georgias existing Hartsfield-Jackson AtlantaInternational Airport. The 27 year old airports current international terminal wasconstructed for the 1996 Olympics and has far been outgrown due to the increaseof international flights p

3、rovided by Delta Air Lines, Inc. The new 1.2 million squarefoot terminal, owned by the City of Atlanta, Department of Aviation, will allow for12 wide-bodied international aircraft as well as 16 domestic planes.1 The projectalso includes an Automated People Mover (APM) Connector from the existingConc

4、ourse E, a concrete Concourse Apron, a new Maynard H. Jackson Jr.Boulevard, elevated terminal roadways, an 1,100 space parking deck, and LongTerm parking lots.2Though early planning for the new international terminal began in the late1990s, progress was halted due to the firing of the joint venture

5、titled TerminalDesign Team “for cause” in 2005.3 Planning, however, picked back up in early2007 when the new architectural joint venture of Atlanta Gateway Designers(AGD) was hired. This business partnership is between Gresham, Smith &Partners and Duckett Design. Construction of the new terminal

6、 began in thesummer of 2007 under the direction of HMMH (Holder, Manhattan, Moody, Hunt),a contractor joint venture between Holder Construction Group LLC, Manhattan1 “Atlanta City Council OKs more than $1B for new airport terminal.” Atlanta Business Chronicle Atlanta 3 March 2008.2 Hasamoh, Michael

7、“MHJIT Case Study Questions.”to . 20 March 2009.3 Ramos, Rachel Tobin. “Delayed Terminal Set for Takeoff.” Atlanta Business Chronicle Atlanta 23February 2007Ford 2Construction Co., C. D. Moody Construction Co., and Hunt Construction Group Inc.The project is estimated to be complete t

8、owards the end of 2011.Design Team: 4Operations/Trades/Field Teams: 54 Hasamoh. “MHJIT Case Study Questions”5 Hasamoh. “MHJIT Case Study Questions”Ford 3ContractorHMMH (Holder, Manhattan, Moody, Hunt): JV Holder Construction Group LLC, Manhattan Construction Co., C. D. Moody Construction Co., Hunt C

9、onstruction Group Inc.Structural SteelCives Steel Co. (Southern Division)Atlanta, GAMechanicalBAA: JVBatchelor & Kimbell, Art Plumbing, ARS MechanicalGAElectricalICU: JVInglet & Stubbs, Cleveland Electric, UnknownGAPlumbingBAAGAFireUnknownBaggage Handling SystemsJervis B. WebbFarls, MItonHil

10、TrainBTHPittsburgh, PAArchitectureAtlanta Gateway Designers (AGD): JV Gresham, Smith, & Partners and Duckett DesignAlpharetta, GACivilAviation Infrastructure Solutions (AIS)Norcross, GASurveyorsLong Engineering and Patterson & Dewar EngineersBoth GAStructuralStanley D. Lindsey and Associates

11、 EngineersAtlanta, GAMechanicalUnknownElectricalThompson Co.Norcross, GAPlumbingThompson Co.Norcross, GAFireUnknownBaggage Handling SystemsCAGE Inc.Atlanta, GATrain DesignersBombardier Total Transit Systems (BTH)Pittsburgh, PALEED ConsultantUnknownCanadaRoadwaysAscendAtlanta, GAMajor functions of th

12、e project include the terminal (see rendering 1 & 2). Itisup of five levels of primarily cast in place concrete structure. The lowestlevel, the Automated Ground Transport System (AGTS) Level, is entirely belowgrade and services mainly private functions including baggage, train, andBombardier off

13、ices. Then Arrivals level is the next highest and is partially belowgrade. This level services arriving international flights and includes functions likecustoms, immigration, etc. The third level is called the Apron Level; it is the mainlevel at grade. Interior program at this level is mostly back o

14、f house like baggagetransport. On the exterior, however, this is the level in which planes will land onthe tarmac. The next level is called the Departures Level. This has the mainpublic entrance; the entrance is composed of a large glass curtain wall system withmetal canopies (see rendering 3). The

15、Departures Level is where the passengerscan buy tickets, check-in, etc. (see renderings 4 & 5). The highest level is only apartial level, with most of it open to the Departures Level below. This is the ClubLevel, and isfor special club members.Another major function of the new international term

16、inal is the connector.It isup of two levels; the first is the AGTS level. This level houses thepassenger train which connects Concourse E of the existing airport with the newterminal and concourse. Above this level is the pedestrian tunnel which allows thepublic to walk to and from the trains and te

17、rminals. The connector area alsoincludes the Vertical Circulation Core which is located near the existing ConcourseFord 4E and isup of several elevators, stairs, and escalators. This circulation corewill allow for the vertical movement of people between all levels.6A new parking deck structure is an

18、other large aspect of this project. Thenew terminal will have an adjacent 1,100 space parking deck.7 This deck will beaccessible to the main entrance of the new terminal. It will also allow forpassenger pick-up and drop-off.Lastly, the new terminal project includes the building of new roadways. Anew

19、 road off from Interstate 75, Maynard H. Jackson Jr. Boulevard, will be ongrade and connect to some elevated roadways. These elevated roadways wraparound the new parking deck to allow for vehicular access to the new internationalterminal (see rendering 1).6 Hasamoh. “MHJIT Case Study Questions”7 “At

20、lanta City Council OKs more than $1B for new airport terminal”Ford 5Rendering 2: Day ViewRendering 3: Main Entrance ApproachFord 6Rendering 4: Interior View of TicketingRendering 5: Interior View of DeparturesFord 7Cost estimates for the project were at 1.4 billion dollars in early 2009.8However, wi

21、th the latest wave of value analysis, the new international terminal isestimated to cost 1.2 billion dollars.9 Funding is currently being provided througha number of various routes. Passenger Facility Charges (PFCs) are one form ofincome for the project. PFCs are chargesto international passengers f

22、romthe airport and can be found on their tickets. This fee has been boosted from itsexisting $4.50 per ticket to $7.50.10 Another form of income is from GeneralAirport Revenue bonds. These are like any other typical bond sold to the public.The third source of income for the project is from Federal G

23、rants. These grantshave helped to fund the construction of the apron and baggage areas.The design team is contractually obligated to provide 2D documentsproduced using AutoCAD. This is not the case with HMMH. They are using BIMtechnologies and have in turn required all of their subcontractors and al

24、l otherconstruction trades to produce 3D ms as well. HMMH is using AutodesksRevit Architecture for their primary mer. They also use Navis Worksextensively for their coordination, clash detection, and 4D phasing. Please see thetable on the next page for a more extensive list of software used on the p

25、roject.118 Hasamoh. “MHJIT Case Study Questions”9 Hasamoh, Michael “MHJIT Case Study Questions Round 2.” April 2009.10 Ramos. “Delayed Terminal Set for Takeoff”11 Hasamoh. “MHJIT Case Study Questions Round 2”to . 24Ford 8Software Used:12Other software used by HMMH include:13-for pres

26、entationso Google SketchUp, Google Earth, Adobe Photoshop, Microsoft-for project trackingo Microsoft Word, Microsoft Excel-for BIM workload scheduleo Microsoft Project-for other schedulingo Primavera12 Hasamoh. “MHJIT Case Study Questions Round 2”13 Hasamoh. “MHJIT Case Study Questions Round 2”Ford

27、9SOFTWAREUSED BYPURPOSEAutoCADAGDContract documentsMicrostationReinforcing Steel/Rebar DesignersShop drawingsRevit Architectu MMHPrimary 3D merNavis WorksMEP subcontractorsPrimary 3D merNavis WorksHMMHCoordination, clash detection, 4D phasingNavis Worksdom ViewerAll disciplines w/out Navis WorksView

28、 3D Navis Works m at no costRAM SteelStructural subcontractors3D structural mArchiCAD MEPMEP subcontractors3D mingAutoCAD MEPMEP subcontractors3D mingRevit MEPMEP subcontractors3D mingTrimble Surveying EquipmentHMMH3D laser scanningTrimble RealWorks SurveyHMMHExtract point clouds and evaluateTimelin

29、e: BIMtonesSince HM MH was brought onboard as the Construction Manager at riskfor new international terminal, theave been some majortones regardingtheir use of BIM on the project. This can be seen when referencing the timelineabove. First in November of 2007, simple color-coded massing ms were usedt

30、o show overall sequencing. Presentation slides to show project phasing were alsogenerated (see image 1). In May of 2008, HMMH began the first stages of 3Dming, starting with the connector element of the new terminal. HMMHmers take the 2D documents produced by the design team and use them toconstruct

31、 3D ms. Another major point was reached in the fall when theybrought in equipment to the site to laser scan the existing baggage system. The3D laser scanning equipment generated a series of point clouds which was thenused to create a 3D mof that scan. HMMH worked together with Patterson &Dewer E

32、ngineers to eventually create a finished 3D mof the baggage systems(see image 2). This mwas complete in early 2009. In the me,Ford 10ming on the terminal was started and 4D phasing animations were developedto present to the job crew.14Image 1: Phasing of MHJIT Image 2: 3D laser scanning of existing

33、baggage claim samples14 Hasamoh. “MHJIT Case Study Questions”Ford 11HMMH has utilized the advng technology of BIM to enhance theirability to coordinate among the multiple disciplines, Architectural, Structural(Concrete), Structural (Steel), Mechanical, Electrical, Plumbing, Fire,Special Systems, Bag

34、gage Handling/Conveyor Systems, involved in theconstruction process of the new international terminal. Below is a timeline of atypical week for the BIM team during the MEP coordination phase of theconstruction process.A typical week is centered around the MEP coordination meetings help Thursdaysat 1

35、0:00 am. Fridays and Mondays are set aside as ming days. EveryTuesday morning, all of the subcontractors and HMMH upload their most currentfiles to an FTP site. HMMH will then combine the various files into one NavisWorks mto run clash detection. After the tests run, the results are checkedfor dupli

36、cate clashes, verified, and then prioritized. A coordination log generatedand prepared with the necessary information for the following days pre-coordination meeting held on the construction site (see image 3) on Wednesdays.This meeting is attended by HMMH mers and a core group of subcontractors.For

37、d 12Some meetings involve problem solving sessions where each clash is reviewed ona projector and the team works together for solutions while other times, the teamstake the information to think separately and bring resolutions back the next week.The method of resolve is determined by the severity of

38、 the clashes detected (i.e.their impact on the construction schedule, cost to move, etc.), the number of theclashes, and/or the time allowed for the meeting. The same process happens thenext day in the larger MEP coordination meeting. However, this meeting consistsof a broader audience of MEP manage

39、rs and field team members. This meetingallows for any unresolved issues from Wednesdays meetings to be discussed aswell as new issues to be addressed. The process is cycled again with Fridays andresolutions.15Mondays set aside to m15 Hasamoh. “MHJIT Case Study Questions Round 2”Ford 13Image 3: MEP C

40、oordination Log sampleCoordination is also improved with the increased visualization that a 3Dmcan provide. One way that HMMH utilizes their 3D mis to create whatis called Field BIM Views (see images 4 & 5). These are simple print outs ofviews within the 3D m. Each of the sheets is labeled to de

41、scribe what theview is looking at, the date the view was created, and contact information of themer who created the view. Another example of improved visualization can beseen when looking at the construction of the AGTS Level. While digging, the teamfound poor soil conditions when digging out the Bo

42、mbardier Offices. Thisdiscovery led to a structural redesign of that area. In order tofor the soilFord 14condition, the structural engineer was forced to thicken the slabs and add drilledpiers to support the level. HMMHs on site mer was able to use the alygenerated 3D structural/MEP coordination mto

43、 help the structural engineervisualize the problem area (see image 6). This visualization helped to reduce thetime and manpower necessary to achieve the re-design.16Image 4: Sample of Field BIM View16 Hasamoh. “MHJIT Case Study Questions Round 2”Ford 15Image 5: Samples of Field BIM Views in workspac

44、esImage 6: Top of Rock VisualizationFord 16BIM has brought several advantages to the project, however, it is notwithout its drawbacks as well. One large problem with using BIM software is thelarge file sizes thated ms can create. For example, the structural steelsubcontractors 3D mhad veryed connections which caused the file sizeto be 8 GB. This file was too large for HMMH, using Navis Works, to handle. Evenafter the connections in the mhad been removed, it was still too large at 290MB. The solution was to request