1.INTRODUCTION1.1.OverviewIn conjunction with its Sustainable Building Program,the Los Angeles CommunityCollege District (LACCD)is committed to utilizing the tools of Building InformationModeling (BIM)to execute the design,construction and management of its new HighPerformance buildings,and the upgrade of its existing facilities and infrastructure toachieve a carbon neutral footprint for its nine campuses.The LACCD BIM Standardshave been developed to define a process and establish requirements,procedures andprotocol for the utilization of BIM in the various stages of our projects.These Standardsare based upon the National Building Information Standards(NBIMS)and reference thecurrent technology Standards developed by the General Services Administration(GSA),the US Army Corps of Engineers (USACE),Industry Foundation Class (IFC)by theInternational Alliance for Interoperability(IAl),and OmniClass Construction Classification(OmniClass)as developed by the Construction Specifications Institute(CSI).1.2.Main Objectives of LACCD Building Information Modeling StandardsIt is the intent of LACCD BIM Standards to facilitate the use of BIM technologies andworkflow to achieve the following goals:1.Develop high performance buildings using sustainable design concepts to achieve anet zero energy use for our buildings2.Facilitate colaborative project environment between all stakeholders from projectinception to completion3.Execute coordinated project documents using the 3D modeling and parametricfeatures of BIM4.Improve system coordination and the execution of design intent in the field tostreamline construction processes and minimize change orders5.Utilize 4D Technology and Process to better manage transition from design toconstruction and virtually simulate construction processes with various trades toavoid conflicts in the field6.Utilize 5D technology and processes to develop building life cycle costs projections,and more accurate project cost estimates7.Incorporate as-built BIMs,including infrastructure and building systems,in to District-wide Geographical Information System(GIS)8.Collaborate with District-wide Facility Management to incorporate as-built informationin to facility management tools and software9.Incorporate submission of the BIM as a requirement for Division of the StateArchitect(DSA)electronic review and approval10.Utilize real life projects and current BIM technology as tools and case studies toestablish education curriculum,and prepare students for the current job market11.Establish a technology platform and provide continuous support to incorporate futuretechnologies12.Use BIM as Information and Communication tools for shared governance,students,facility managers and staff,the communityLACCD Building Information Modeling StandardsInterim Version 2.0-DBB興尚理筑素荷网Z..ET 2.BIM PROJECT REQUIREMENTS2.1.SummaryMandatory BIM Project requirements shall include the modeling,visualization,documentation and analytic processes of the building design,as shall assist in validating thescope and cost of the project.The principal objective of incorporating BIM is to improve the quality of design solutions andthe exchange of information between the parties.This requires cooperation between thedesign build team,project management and LACCD.2.2 Technology Platform and SoftwareLACCD accepts true 3D solid modeling,object oriented software applications thatcomply with current industry interoperability standards and are able to be used in acollaborative environment.The models and analyses shall be used in support of thedecision making process for high performance building design.All software platforms used for LACCD projects MUST be compliant with:Most current version of Industry Foundation Classes(IFC)file formatCommercially available collaboration software that provides interoperabilitybetween the different software applications(e.g.NavisWorks or equal)Approved BiM Software tor LACCD ProiectsCSoftwareAvailableAuthoring-DesignRevit Architecture,Bentley BIM,ArchiCAD,Tekla or equal(Architecture,Structural)Authoring-MEPFRevit MEP,AutoCAD MEP,Bentley BIM,CAD-Duct,CAD-Pipe,(design construction)AutoSprink,PipeDesigner 3D or equalAuthoring-CivilBentley Inroads and Geopak,Autodesk Civil 3DCoordination(spatialNavisWorks Manage or Bentley Navigatorconflict,clash detection)4D SchedulingSynchro,Vico,NavisWorks Simulate,Primavera,MS Project,Bentley NavigatorCost EstimateInnovaya,Vico or equalEnergy AnalysisGreen Building Studio,IES,Ecotect,Hevacomp,TAS,or equalSpecificationsE-Specs or equalModel CheckingSolibri or equalValidation,IFC FileOptimizerWater ManagementBentley WaterGemSoftware other than those listed below may be used subject to the above compliancerequirements and approval by LACCD Staff.Traditional 2D documentation shall be prepared with approved IFC Compliant BIM AuthoringSoftware and,as such,the expectation shall be that plans,elevations,sections,schedules,LACCD Building Information Modeling StandardsInterim Version 2.0-DBB3興尚理筑素村网ZCET and details are fully coordinated with the concurrent building model.All other documentsare to be submitted per the contract requirements of the District.2.3 Applications of BIMBIM output can be utilized in a variety of ways to provide stakeholders with a greaterunderstand of how a building is to be used,designed,and constructed.The variousapplications in which BIM shall be utilized for all LACCD BIM projects shall be as follows:2.3.1 Pre-Design and ProgrammingFor each campus,The District shall develop Programming Requirements which shalldefine space and adjacency requirements to be adhered for individual projects.These requirements shall be based upon the campus Education Master Plan andFacility Master Plan,and shall reference the Owner's Basis of Design andSustainable Design Guideline Documents.As-Built Records of Existing Facilities,and,BIM /GIS mapping of campus shall be included in this documentation andprovided to project teams for their use during the RFP phase.Where possible,allprogramming and as built data provided by the campus shall be in a format that isfully translatable to an IFC Compliant BIM Authoring Tool and shall be expected tobe incorporated by the Design Build Teams in to their design processes for referenceand verification purposes.2.3.2 RFP Competition(Design-Build Projects only)7As a major component of the RFP competition phase of each project,allcompeting project teams shall participate in a BIM Charette where teams will beasked to incorporate District provided As-Built Information,ProgrammingRequirements,and Sustainable Design Guidelines,in to a conceptual designmodel.Final competition submittals shall be executed in an IFC Compliant BIMAuthoring tool with deliverables as defined by the District prior to the competitionphase.Examples of these deleiverables may include massing studies,designvisualization renderings,3D models,and preliminary building performance and costestimating analysis.Programming shall become the basis of massing diagrams in BIM,and shallbe validated by an approved format pre-determined by the District.As-Built Documentation shall be referenced and modeled using BIM andGIS oriented mapping to establish proper orientation and location for thebuilding2.3.3 Site Conditions-Existing Conditions and New ConstructionFor new construction and renovation projects,the modeling of the project site and theexisting structures,shall be included in the BIM requirements.Depending upon theproject site,a model of the site may be obtained from the LACCD Vault or commissionedby an external consultant using an approved IFC Compliant,3D Site and Utility ModelingBIM tool.LACCD Building Information Modeling StandardsInterim Version 2.0-DBB4理筑素荷网Z..ET For all projects,the modeling of existing buildings shall be performed based upon Districtprovided as-built information,with field verification or electronic measurementsconducted by Project team to validate the level of accuracy.For all existing conditions to be directly impacted,altered,or to be demolished by aproposed renovation,Project Designers shall model those conditions to the appropriatelevel of detail that will clearly demonstrate the design intent to building stakeholders,other Project Team Members,and construction trades directly involved with executingthis change.Proposed site conditions shall reference campus benchmarks,and reference existingsurveys and GIS mapping systems for accuracy.New site and utility conditions shall bemodeled in 3D,and shall coordinate system and spatial models three dimensionally.Where other systems are directly impacted by landscape features (i.e.vegetation,irrigation),those elements shall be modeled with correct size and clearancerequirements in BIM.2.3.4 Architectural Model-Spatial and Material Design ModelsThe Architectural Spatial model evolves during the design process,and the informationmodeled in BIM shall be further refined as a project progresses toward construction.Inthe early phases of design,an Architectural BIM Model may be as simple as a massingmodel validating program requirements,basic geometries,and building orientation toclimate and site conditions.系?网J∠SC.N上As the design progresses,design options shall develop and need to be clearlydocumented and delineated in the BIM model.Likewise,as materials and componentsare selected,generic assemblies shall be assigned material properties,sizes,trackLEED values,and other specific component information to clearly define various buildingfeatures such as walls,floors,roofs,doors and windows.Program space requirementsshall be modeled in the spatial model and validated using schedules and other validationtools designated by the District for the specific project.2.3.5 System Models -Structural and MEPF designWith current technology,building systems are best organized as separate BIM modelslinked to a common campus benchmark for efficient and accurate coordinationpurposes.Similar to the spatial models,the level of detail in these models shall evolveas design progresses such that these systems are accurately modeled,and includesufficient performance,clearance,and LEED requirements as part of the BIM.2.3.6 Cost estimation(Design-Bid-Build Projects Only)Cost estimation shall be generated from the Project BIM at project milestonesdesignated by the contract.At the completion of Construction Documentation Phase,the Design Team shall provide to potential bidders a copy of the fully assembled andcoordinated BIM in a non-editable format.(i.e.Navisworks nwd,dwf,3d pdf).LACCD Building Information Modeling StandardsInterim Version 2.0-DBB理筑素荷网Z..ET 2.3.7 4D Scheduling and SequencingThe construction planning process mandates the sequencing of activities in space andtime and accounting for constraints such as procurement lead time/logistics,resources,spatial constraints,and weather among others.Traditional scheduling methods do not address the spatial aspect to the constructionactivities nor are they directly linked to a design or building model.Traditional bar chartsor Critical Path Method Network Diagram can be difficult to understand or interpret.Having the ability to watch the elements of a design come together onscreen gives thedesign and construction team improved accuracy in construction sequencing.The primary elements LACCD requires for 4D simulation and sequencing shall be asfollows:Structural systemAll structural framing components including foundations,gradebeams,columns,load bearing walls,floor and roof decks andsupportExterior buildingStud walls,Exterior Panels and assemblies,curtain wallsenvelopeopenings,glazingInterior partitionsMain plumbing walls and wall assembliesMechanical systemMain Ductwork and Equipment,(Separated by floors)工Roof Assemblies,Major Equipment,OpeningsSite work and groundExcavation work,footings,foundations,on-gradeplaneSlabPlumbingMain Connection lines from site,main plumbing linesThe optimal process in 4D scheduling is to import schedule activity data from ascheduling application such as Primavera P3/P6 into a dedicated 4D schedulingapplication and"link"the activity data to the associated object in a 3D model.The resultis a 4D model which provides a value advantage to the Project Team for bettervisualization and coordination of the construction sequence for respective trades.Prior to the start of construction,Design-Builder(General Contractor in Design-Bid-BuildProjects)shall link BIM to the approved construction schedule.2.3.8 5D EstimationLACCD will not require BIM based 5D Estimation at this time.We will address thisrequirement in later versions of this Standard as technology progresses.2.3.9 Energy Consumption Simulation and Life-Cycle Cost AnalysisIn order to achieve net zero energy goals for its campuses,all new construction shallneed to be designed in a way that energy and material use can be greatly reduced andthen measured and verified by a building's users and facilities management teams onceit is occupied.As such,energy simulation and life-cycle cost calculations shall be basedLACCD Building Information Modeling StandardsInterim Version 2.0-DBB6理筑素村网ZCET upon information extracted directly from BIM technology and validated by energymodeling,whole building commissioning requirements and LEED Certification.Exporting to gbXML-Project teams shall utilize energy modeling and sustainabledesign software that extracts BIM data to gbXML format for analysis.Reference section2.2.for approved BIM Authoring Tools.2.3.10 Design VisualizationDesign Visualization tools refer to animations,fly-throughs,static 3D renderings,4D,and3D Physical Models exported directly from a BIM Authoring Tool.Design teams shallparticipate in providing the quality design visualizations that illustrate building spaces,their use and organization,to assist stakeholders in making decisions throughout theproject duration.During Construction,visualization models may be developed by theContractor to help simulate and sequence construction of a room before it is built.It should be noted that even though the BIMs contain most of the source informationneeded for visualization,they may require further refinement in specific animation andvisualization software to accomplish intended results.2.4 Modeling Requirements2.4.1Generala.FThe BIM shall be used for all site and building systems design,development,andanalysis,including but not limited to architectural,structural,mechanical,electrical,plumbing,and fire suppression,etc.b.During SD and DD Phases,BIM Technology shall be used to develop andestablish building performance,and the Basis of Design in accordance withOwner Project Requirements (OPR).This model shall be interoperable withanalytic tools including but not limited to building envelope,orientation,daylighting,energy consumption,building management system(BMS),buildingautomation systems(BAS),renewable energy strategies,life cycle cost analysis,and spatial requirements.c.Use BIM authoring software element libraries when creating model objects.Model objects shall contain parts and components as opposed to simple 3DGeometry (i.e.walls,doors,windows,railings,stairs,furniture)d.Model objects shall contain IFC parameters and associated data applicable tobuilding system requirements.These elements shall support the analyticprocess include size,material,location,mounting heights,and systeminformation where applicable.As an example,a light fixture may contain severalparameters such as energy output requirements,user illumination levels,make,model,manufacturer,bulb lifee.Sustainable design principles and LEED Credit Documentation shall be includedin the BIM to analyze,document,and verify project LEED Certification Goals.LACCD Building Information Modeling StandardsInterim Version 2.0-DBB>理筑素荷网Z..ET
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