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What is BIM
The BIM process a collaborative environment
BIM is both technology and a new way of working, i.e. tools which improve delivery of outputs, and implementation of a collaborative culture.

BIM is a business process supported by technology. To optimise use of the technology it is necessary to deploy the process. It is absolutely critical to understand this as in the construction industry, traditional methods use technology in isolation, but the BIM process uses technology in collaboration. This scenario is not unique and lessons can be learned from the past. During the 1980s, manufacturing, automotive and aerospace faced a similar situation to construction today. Driven by the need for dramatic improvement in efficiency due to international competition, rather than a volatile property market, it was clear that disparate and isolated work groups, each shrouded in their own environments, were not the platform for success. The solution was to adopt new technologies that encouraged collaboration
The Building Information Model (BIM)
Building Information Modeling (known as Little BIM) is the process of generating the Building Information Model (known as Big BIM). The BIM model is used to manage the building data throughout the life cycle of a building, from conceptual planning stages to operations, renovations, and even demolition. The first step in developing a BIM is to produce a 3D model, giving spatial definition to all of the components in the model. Adding information to the model elements is the second step. With these first two steps, Little BIM is complete. The Big BIM is used by various tools to manipulate the data, much like any data modeling software does.At the heart of the BIM process is the 3D Building Information Model and this is created by advanced software tools. Unlike the simple lines and curves associated with traditional 2D CAD systems, BIM software technology introduces intelligence into the design. As well as being described by dimensions and locations, objects also have data attached relating to materials and compositions. In simple terms, in a Building Information Model, every object knows what it is, where it is, how big it is and what it is made of. Through aforementioned collaboration in the business process, the key elements of design, that is, Architectural, Structural and MEPF, (Mechanical/Electrical/Plumbing/Fire protection), are integrated into a single Building Information Model enabling all design data to be assembled in one space rather than via the 100s or 1000s of drawings associated with the traditional process.Distinction must be made between a Building Information Model and a more simplistic 3D model containing purely geometric data without the associated object intelligence. With this object intelligence, the Building Information Model can produce meaningful and accurate Bills of Quantity that can in turn be used to inform cost and schedule, thereby integrating estimators, cost managers and planners into the process.BIM is a layered, 3-dimensional, electronic model that represents exactly how the real building will be built in the field – with structural, plumbing, electrical, and HVAC components laid out in precise detail. Using BIM has several advantages. In traditional, board drafting, the drawings were 2D by their nature. 3D became possible with the advent of CAD, although most drafters/designers still have not made the transition to 3D. Another component that CAD allows is the addition of data, tied directly to the objects in the model. This capability allows the BIM user to transcend the 2D and 3D realms, moving on into 4D (time), 5D (value), 6D (operations), and more.
BIM (Building Information Modelling ) Process
Building Information Modeling (BIM) is a new approach to building project delivery that uses data to create an information-rich model of a facility to improve the design, construction, and operation of the facility. Successfully implemented projects show significant benefits, including improved design quality, improved field productivity, cost predictability, reduced conflicts and associated changes, and reduced construction costs and duration.Leveraging the data from multiple sources used to create the virtual BIM model we can see the design and analyze how all of the elements work together. By adding the third dimension (3D) to the traditional flat (2D) drawings we are able to avoid potential clashes well before construction begins and materials have been ordered resulting in significant savings. Beyond 3D BIM adds intelligence to the model by making information about each element available to the users. For example using GPS data a building is anchored to a specific location in the world, this in turn provides us with long term weather and solar data that allows us to analyze the annual energy use of the building and run “what if” scenarios exploring building form, orientation, envelope, shading, etc. Adding the dimension of time (4D) the BIM model can further analyze the construction processes critical to transforming the design into reality.

As more and more relevant data is added to the BIM model it can be used for a variety of other value added processes such as sustainability, costing, procurement, off-site or modular construction, safety, owner space management and tracking, operations and maintenance, mission critical and disaster planning to name but a few. Ultimately, however, BIM is not about technology or processes, it is about people and how the knowledge and wisdom of people can be brought together into a collaborative process to deliver a fully integrated project that meets all goals and objectives aspired to in from the beginning.



4D BIM provides construction project visualization, CPM scheduling, supply chain management, cost management, risk management, interoperability with 3D CAD and industry standard project management software all focused on virtual construction engineering simulation. 4D BIM enables construction product development, collaborative and transparent project implementation, partnering with the supply chain and production of components. It is in keeping with Sir John’s vision with 4D BIM as part of the delivery process that “sustained improvement should then be delivered through use of techniques for eliminating waste and increasing value for the customer.Time has always been an important factor of any construction project since the dawn of civilization. In early ninety’s Henry Laurence Gantt developed the first bars charts commonly referred to as gantt charts and in mid ninety’s CPM was introduced to the world. With the introduction and revolution of BIM – Building Information Modeling since early 2000, the next significant innovation in the evolution of construction scheduling has been 4D BIM. 4D BIM provides a visual 3D CAD design that is integrated with the CPM construction schedule; the 4th dimension of time is added to the model. The end result is a virtual construction simulation that can provide detailed insight that was never before possible.

4D Deliverables: (Basic & Advance)

4D Baseline Schedules

4D Schedule Updates

4D Logistics Planning

4D Collaborative Foremen Meetings

4D What-If Scenarios

4D Planned vs. Actual

4D for Marketing and Public Relations

4D Visuals for Claims and Arbitration

Significantly compress schedules – without increasing risk, Deliver clear, accurate, and feasible schedules, Easily manage task buffers, Visually identify conflicts and forecast project progress, Project monitoring and control , Effectively communicate the schedules of complex projects

A fifth dimension is introduced when the concept of cost over time is added to the 4D model. 5D allows you to explore what the budget/estimated cost of a project might be at any given point in time during the project. 5D in Building Information Modeling (BIM) is a concept that refers to the linking of 3D BIM with time and cost related information. While 4D BIM integrates time or schedule related information into the 3D BIM model, 5D BIM adds the cost dimension. In simple word, 5D – this is 4D plus “cost”. Integration of design with estimating, scheduling and costing, including generation of Bills of Quantities, and derivation of productivity rates and labour costs.Traditional and BIM – Similarities and Differences for Cost Estimating :

range of an estimate based on the level of project definition. In the traditional process, the project plans and specifications were the primary means by which this was determined, and as such, there was a direct correlation between the project’s level of definition and the expected accuracy of an estimate. It is reasonable to expect a similar convention exists in BIM, and that as a BIM contains more project definition, it also impacts the potential accuracy of an estimate. The difference in BIM, though, is in how a designer creates the objects for project ‘plans,’ and specifications now have an impact on the estimate.

How 5D BIM Benefits Construction Companies :

5D BIM incorporates the cost estimation ability to the BIM model in such a way that any change in the design gets reflected in the budget immediately. In other words, the 5D model enables architects, contractors, and engineers to work on a live model, which ensures that cost calculations are changed automatically whenever any change is brought to the structure and design of the project. Owners and decision makers of a construction company can use 5D BIM to their advantage by:

Building a database of cost and pricing, crew composition, sub KPIs, and labor productivity rates.

Getting cost-loaded schedules, detailed analysis of project risks, and accurate cash flow forecasts.

Seeing how a change in the project’s design would influence the budget and scheduling of the project.

Taking more informed decisions by comparing multiple cost estimates with the project’s target cost.

Seeing which areas of the building are adding to the total costs and how.

Provide the project teams with resource-loaded schedules, accurate cash flow forecasts, detailed project risk analyses, and even resource forecasts for major subcontractors.

Offer clients the chance to explore several different scenarios, i.e. illustrating how a change in design impacts
both the programme and budget. Cost estimates can be linked to the BIM model so that a change in the design
would be immediately reflected in the budget and programme. As part of Integrated Project Delivery, it is
possible to work on a “live model”, meaning that a change in the geometry of the facility (3D model) will change
the calculations for the programme and cost.

With easy access to detailed information about costs and schedules, 5D BIM takes the efficiency of a construction team to the next level. With the effective use of 5D in BIM, owners, contractors, engineers, and all other members associated with the project can work collaboratively to achieve timely delivery, cost efficiency, and quality. While the application of 5D BIM is still in its infancy, experts believe that 5D in BIM is all set to bring a paradigm shift in the construction process by improving functionality and providing tools to estimate costs more accurately throughout the lifecycle of a project


6D – The aspect of Life Cycle Management (owner/FM)
6D BIM model contains the room elements, such as room name, number, and space type connected with asset information such as manufacturer, model numbers, serial numbers, and any operations and maintenance requirements. So instead of the encyclopedia set of three-ring binders at the end of the project, you can give the Owner a 6D BIM model complete with all the information their facilities’ team needs.6D BIM, an acronym for 6D Building Information Modeling and a term widely used in the Construction industry, refers to the intelligent linking of individual 3D CAD components or assemblies with all aspects of project life-cycle management information. The 6D model is usually delivered to the owner, when a construction project is ready to be closed-out. The “As-Built” BIM model is populated with all relevant building component information such as product data and details, maintenance/operation manuals, cut sheet specifications, photos, warranty data, web links to product online sources, manufacturer information and contacts, etc. This information-centric database is made globally accessible to the users/owners through a customized proprietary secure web-based environment. The accuracy of 6D BIM aids facilities managers in the operation and maintenance of the facility throughout its life cycle
BIM Benefits & ROI
BIM isn’t just a fancy 3D CAD model. The latter has been around for quite a while and in most cases represents just the visual aspects of a building. BIM is much more; it’s about creating a model of the project that actually represents its physical characteristics, its performance, the way it’ll be built and anything else of use to the teams involved in designing, building and operating it. Successful BIM delivery in construction sector is not about software, it’s about processes and understanding. It’s about knowing what you, as a contractor or sub-contractor, require to be delivered from the design phase of a project, how you can use this information for the benefit of your organization, and for the benefit of the client. Ultimately, BIM may be about winning business by producing better bids and then delivering projects on time and on budget for a satisfied client.
Actual BIM usage in an production will define the achievable benefits. Please refer
The Benefits of BIM in Construction :
Different organizations and projects will see different benefits from BIM and a different return on investment (37% reported over 25% ROI), particularly over time. However, the key benefits include:

Improved initial design data

Better communication/collaboration

Increased productivity

Reduced rework

Reduced cycle time in many workflows

Improved service to client

Reduced risk

More accurate and earlier cost certainty

More accurate and earlier cost certainty

Reduced waste

Improved design and construction sequence understanding

Facilitates different construction techniques (e.g.pre-fabrication)

Reduced clashes and resulting conflicts

Reduced cost

Marketing purposes and publicity.

Better understanding of the phasing schedule by the owner and project participants and showing the critical path of the project.

Dynamic phasing plans of occupancy offering multiple options and solutions to space conflicts.

Integrate planning of human, equipment and material resources with the BIM model to better schedule and cost estimate the project.

Space and workspace conflicts identified and resolved ahead of the construction process.

Identification of schedule, sequencing or phasing issues.

More readily constructible, operable and maintainable project.

Monitor procurement status of project materials.

Conveying the spatial complexities of the project, planning information, and support conducting additional analyses.Increased productivity and decreased waste on job site
Owner Benefits of BIM
A process change that improves the odds of delivering a building on time an on budget.

Improved design quality, better performing building (systems coordination, engineering analysis)

Fewer change orders (building systems clash detection)

Schedule optimization (construction schedule simulation)

Schedule compression (digital assisted fabrication,offsite fab)

Efficient handover (data exchange for operations/maintenance)

Risk reduction (more transparency)Architect/Engineer Benefits of BIM A data rich digital representation of a building that allows designers to explore design options, conduct analysis and better communicate design intent.

Design prototype (space arrangements, assemblies,materials)

Building systems coordination (space reservation, clash detection)

Analysis (space, lighting, energy, structural)

Drawing production quality (flexible, exploits automation, better coordinated)

Design exploration/interrogation (data rich visual models)

Engineering accuracy (measurement, context)
Architect/Engineer Benefits of BIM
A data rich digital representation of a building that provides a better understanding of the building and assists with construction delivery.

Risk reduction (better understanding of complexity)

Building systems coordination (clash detection,layout)

Shop drawing reduction (model to fabrication)

Digital fabrication (steel, HVAC ducts, piping)

Construction schedule optimization (visual schedule simulation)

Cost estimating (quantity takeoffs) Team Benefits of BIM A project delivery process that encourages collaboration and a focus on data management and sharing.

Efficient processes (forces process re-engineering)

Improved collaboration (concurrent design, process to rally around)

Better decisions (better coordinated information)

Accelerated understanding (graphics + data)

Efficiencies from reuse of data (enter once use many)

Improved data quality (less data re-entry,less human


Architectural BIM Services Structural BIM Services MEP-HVAC BIM Services Project Management Services (4D) Infrastructure BIM Services

BIMStar Provides following unique Architectural BIM Services BIM Services
•  Architectural 3D Modeling
           •  Interior modeling
           •  External & Internal Finishes)
•  Façade Modeling
•  Architectural CAD Conversion
•  3D Infrastructure Modeling
•  Furniture and Fixture Modeling
•  Mock-Up / Proto type modeling
•  Architectural 2D Drafting & Detailing
•  BOQ-Architectural Model Elements
•  Architectural GFC Layout
•  Scan To BIM Services for Architectural
•  Architectural Modelling for MEP Coordination
•  Architectural Rendering Services
•  3D Walkthrough – Exterior/3D Walkthrough – Interior, 3D Animation

BIMStar Provides following Unique Structural BIM Services
•  Structural 3D Modeling
           •  Main and Secondary Frame modeling
           •  Structural Finishes
•  Façade Modeling
•  3D Precast Modeling
•  Precast Panel Modeling & Detailing
•  3D Rebar Modeling for,
           •  Accurate Rebar BOQ
           •  BBS (Bar Bending Schedules)
•  Structural 2D Drafting & Detailing
•  BOQ-Structural Model Elements
•  Structural GFC Layout (GA Drawings )
•  Scan To BIM Services for Structural
•  Structural Steel Connection Modeling
•  Structural Steel Fabrication Drawings
           •  Assembly Drawings
           •  Single Part Drawings
           •  Multi Part Drawings
           •  Bolt & Weld Lists

BIMStar Provides following unique MEP-HVAC Services
•  3D Mechanical Elements Modeling
•  3D Plumbing Modeling
•  3D Electrical Modeling
•  Clash Detection & Resolution Services
           •  CDR Reports (Project team's review, Approvals and                          incorporation in model). Model based resolution (For                          discrepancies).
           •  Project Coordination Support. Support for Optimized routing
               Support and incorporation into 3D Model.
•  Composite Services Drawings (CSD) From Clash Free Model
           •  Customer specific scale with ISO Standard Drawing Size
•  Shop Drawings / Fabrication Drawings (Single Services Drawings = SSD)
           •  HVAC Ducting & Equipment Layout
           •  Piping & Equipment Layout with Section Details
           •  Fire Fighting System Layout
           •  Lighting & Conduit layout
           •  Cable Tray layout with Section Details
           •  Spool Drawings
           •  Sleeve Drawings
           •  Builders Work Drawing
•  Drainage, water supply, Ran water layout with sectional details

BIMStar Provides following unique Project Management Services (4D) BIM Services
BIMStar 4D SERVICES: (Basic & Advance)
•  Complete initial (planned) schedule incorporation in model by linking      up of the construction schedule provided by Clients/Main Contractor.
•  Mapping site progress into 3D model for various projections,     including      schedule for identifying delays and updating client on any such lapses      and deviations regularly, mostly on fortnightly basis.
•  Planned Vs Actual 3D representation on project status update for      schedule. Thereof incorporating revised schedule and rescheduling      from any such situation
BIMStar 4D SERVICES: (Advance)
•  4D Baseline Schedules
•  4D Schedule Updates
•  4D Logistics Planning
•  4D Collaborative Foremen Meetings
•  4D What-If Scenarios
•  4D Planned vs. Actual
•  4D for Marketing and Public Relations
•  4D Visuals for Claims and Arbitration

BIMStar Provides following unique Infrastructure BIM Services
•  Land Modeling & Detailing
•  Water Network
           •  Water Lines,
           •  Junctions, Valves,
           •  Tanks, Pumps
•  Road Network
           •  Roads, Footpath,
           •  Medians, Signals
•  Cut and Fill Model from 3D Model
•  BOQ of Entire 3D Model Elements
•  Sewerage Treatment Plant, Sewerage Systems
•  Storm Water Drains
           •  Storm lines, manholes
           •  Chambers, junctions
•  Cooking gas lines, Power Systems

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