Virtual Construction Modeling Services
Introduced world over and in India, in the year 2004/05, Virtual Construction Modeling
involves developing 3D Virtual Engineering Models of real estate/ construction projects,
including 4D simulations for project scheduling & monitoring and project cost estimation
through estimating packages with 5D simulations for preparing phase wise requirement
of construction materials/ resources requirement and cash flow requirement for implementing
the complete project from start to finish.
3D Virtual Model
- It is an
engineering model (Virtual model in 3D format) of a building/ structure, which is
created on computer using parametric construction objects like walls, columns, slabs,
windows, doors etc. with exact dimensions up to 1mm or less, with exact materials
to be used for actual construction of buildings.
the construction objects, even services like plumbing and sanitary pipes, fire protection
arrangement, air conditioning ducts, electrical cable trays, false ceilings etc.
can also be included in the 3D model.
- In this
3D model, interactive walk- thru is available for viewing:
Any area to verify use of spaces, how building would look when finally constructed
(even before first brick is laid on ground)
- It gives
opportunity to evaluate alternatives, which would be expensive or sometimes very
difficult to achieve at a later stage.
- The creation
of the 3D model enhances trade coordination, supports estimation as parallel process
and serves as connection point for downstream applications.
- 2D drawings
plans, sections, elevations at any point are just a bye-product from the system
which are totally consistent.
the 3D Virtual Model with time element is called the 4th dimension.
- For this
purpose, several 3D BIM (Building Information Model) modeling software packages
provide modeling facility, which are used to quickly create 3D building models for
engineering coordination & visualization purposes.
- Some 3D
BIM/ virtual construction software packages work alongwith 4D Sequencer, which have
capability of linking the model to the project schedule, allowing schedule alternatives
to be more effectively evaluated, analyzed and communicated.
the 4D simulation depicts how building would get constructed over time and offers
functionality for gaining quick insight into a location based schedule, as well
as for identifying time/ space conflicts.
the 3D Virtual Model with 4th dimension of time with element of cost is called
the 5th dimension.
- 3D BIM/
virtual construction software generally have model based estimating system designed
to extract accurate quantity information on the construction model and produce accurate
- Using the
construction model as the link between time and cost, virtual construction packages
also generate 5D reports - e.g. cost - loaded schedules for further financial analysis.
- The system
divides the resources created by the estimating application into construction/ production
zones, providing scheduled procurement requirements in order to streamline construction
- Such packages
lp in exporting its reports, estimates and other outputs in Microsoft Excel
3D BIM Modeling
Involves creation of Virtual Construction 3D model from architectural, structural
& different MEP design drawings for identifying RFIs & prepartion of Discrepancy
Report. This helps in:
planning and coordination among architects, engineers, project managers and project
risks and errors.
discrepancies and interferences.
frequent emergency meetings.
optimum design alternative.
Model Based Quantity Survey (BOQ)
As a part of the complete 3D BIM services, we provide model based construction quantity
estimation, bill verification, material reconciliation & QS services which comes
as a part and parcel of the virtual construction technology. This helps in:
for cost estimation at different stages including tendering & final construction
the cost effective alternative designs or materials.
- Quick and
accurate estimation for tendering and bill verification purposes
|4D & 5D Simulation Based Project Management Consulting
'time' element with 3D Virtual model.
packages are used which have facility to link the 3D model elements to the project
schedule, allowing schedule alternatives to be more effectively -
gaining quick insight into a schedule for time, space conflicts.
'cost' element with the already developed 3D model and 4D simulation.
estimating packages are used to produce accurate estimates.
of time element & cost element to 3D model helps in developing phrasewise material
& cash floor requirements.
progress monitoring, updation & rescheduling can be worked out more effectively,
on near real time basis. using built-in visual & location based aids.
Architectural and Engineering on BIM Platform
architectural and engineering solution on 3D platform itself.
can be commenced from concept stage to submission/ tender stage & refined for detail
design & GFC stage.
2D drawings preparation for architectural, structural & MEP designs at different
drawings (GFC's) to be prepared using 3D BIM model & 2D software packages at final
full engineering co-ordination throughout the full process of design development.
Virtual Construction V/S Conventional Project Management
How Virtual construction modeling based solution is different from
the conventional project management of the construction projects?
point in virtual construction modeling solution is creation of the virtual 3D engineering
model of the building (including services) from the 2D CAD drawings. This helps
immediately in knowing completeness, consistency & discrepancies in the issued drawings
till that time.
derived from the 3D model of the building, so as the changes take place in the design
& model, BOQ is automatically updated. In view of this, continuous updated BOQ and
project cost is available all the time. This also helps in doing value engineering
to arrive at optimum design solutions/ material choices.
scheduling is linked with the 3D model. BOQ is picked up from the 3D model and only
time element and interdependencies of activities need to be incorporated for project
scheduling. The project scheduler in this case has a special feature to plan the
activities based on location or zone. Also, a concept of 'Line of Balance' is inbuilt
in the scheduler, which helps diagrammatically to depict any over lap or clash of
activities. This feature helps in easy updation, monitoring and rescheduling of
the project activities.
requirement of materials at any point of time is being generated from the updated
3D building model and the updated construction schedule. So, the phase wise requirement
of materials indicated is realistic and accurate. One can effectively reach a zero
inventory operation at the project site for civil engineering project execution,
as one can achieve in the engineering industry.Material balance, contractors, bill
verification & complete project planning, scheduling, monitoring & control of a
project from start to finish can be carried out on a near real time basis.
an integration between design, BOQ & construction schedule in one comprehensive