Case Studies

Autodesk
Revit BIM eliminated material wastage that could have affected construction in
terms of time, cost, manpower & material. The project managers were
satisfied  that by managing project
information through Revit, the team  was
able to complete the modeling within the strict deadline, giving emphasis to
improved engineering,  construction
oversight and  client satisfaction.

Project Summary – Residential
Project, USA

The BIM
team was responsible for reviewing the 3D BIM Model of Building with 2 Towers,
out of which the East Tower included 3-storey apartment above ground space and
the South Tower included 15-storey retail apartment above space. The buildings
are proposed to be connected by a pedestrian bridge. BIM engineers reviewed the
Model of South Tower consisting of 15 floors along with the roof and parking
space for 400 cars.

BIM Scope of Work:

The
scope of work was reviewing 3D BIM model and creating the shop drawings of
column, wall & slab plans. Stud rail shop drawings were also extracted from
the model in the project.

•Trades
Covered: Concrete Structure

•Software
Used: Revit

•LOD:
400

Modeling Stages:

Stage 1:

Revit Model Creation at LOD 200:

Model
review of Concrete elements, including Caisson caps, Grade beams, Foundation
walls, Shear walls, Garage slab, Crash walls, etc.

Stage 2:

Design Development &
Construction Documentation Stage modeling at LOD 350:

Shop
drawing preparation using color codes of concrete elements at various
elevations

Stud
Rail drawing creation with adequate information that facilitated on-site team
to have an accurate idea of where they should be placed.

Stage 3:

Constructability Review:

Model
update reflecting changes resulting from Design & RFI update

Challenges & Solutions:

• Challenge: 1

Strict Project Deadline

Completion
of the project within strict deadline and limited budget, where, as-built
drawing and facility management amount was not considered

Solution:

Team of
structural engineers clearly defined targets to accomplish the project work
within stipulated time frame. Senior team members provided technical guidance
and quality check. Using Autodesk Revit, BIM team could plan and coordinate
every project design, detailing, construction and maintenance effectively.

• Challenge: 2

Frequent Design Change: Managing Design changes came
across as a huge challenge in this project. New details of Stud Rails were
required by client to develop with design changes.

Solution: 

Issues
were raised through RFIs and communicated to client for incorporating desired
changes into the model and drawings.

BIM Simplified Work Process:

1. Input Challenges: BIM helped to find
inconsistency in input drawings.

2. Incomplete Information: Location of Structural walls,
Floor drains position & Variable slopes on structural slabs were done using
BIM.

3. Constructability Issues/
Reviews: There
were some conflicts between Architecture & Structure which could have
affected construction in terms of time, cost, manpower, material. BIM minimized
the wastages.

4. Coordinating /Design Issues
Faced:  BIM coordination identified the clashes
resulting in design revisions. The issues identified in drawings and resolved
through drawing validation:

• Due
to clashing between pipe and supply air duct, the floor drain was relocated.

•
Elevator moved to the east due to clash of crash wall & upturn beam.

•
Concrete crash walls were used at the edge of ramp instead of barrier cables
for space constrain.

BIM Value Addition:

During
the project execution stage BIM engineers raised 20 RFIs and received
additional 40+ RFIs by the client. The BIM team started the project based on
the IFC document; received structural sketches and updated the model as per
shop drawings.

Autodesk
Revit BIM helped BIM Engineers to plan using intelligent models and
enabled team to anticipate, plan and
coordinate project design, detailing, construction and maintenance. It
identified constructability issues at pre-construction by detecting clashes,
avoiding work stoppages, rework as well as wastage of time, material and
manpower.

Facts at a glance:

• BIM
Start Date: Jan, 2022

• BIM
End Date: May, 2022

•
Project Area: 3, 75,000 Sq ft

• BIM
Team Size: 5 Structural Engineers

•
Software Use: Autodesk Revit & Navisworks

Contact: +91 8003533335, +1 7208008859, info@bimpact.in