Virtual Design and Construction

Virtual Design and Construction© Building Explorer, Inc.

Virtual Design and Construction


Virtual Design & Construction is …

The computer simulation of the architectural definition and assembly of a building project.

BIM(The 3D Model)

Organization

(Bring builders & designers

together in a team)

Process (Creating and

using the model)


Virtual Design and Construction

Build Prototype(s) and Analyze Best Option

Build and ANALYZE a virtual model TWO…THREE times – Reduce project RISK

Predict possible Logistical CONFLICTS

BUILD Cheaper, Faster, Smarter


Why Virtual Design and Construction


Industry Productivity at a Glance

• Frequent Project Cost Overruns

•Frequent Project Schedule Overruns

• Prevalent Change Orders

• Rising Legal Disputes

• Lack of transparency

• Inefficient Current Processes

• Lack of Interoperability


Additional cost of interoperability in the construction industry 2002 (in $millions)

Stakeholder Group Planning, Engineering, Design Phase

Construction Phase

Operation Maintenance Phase

Total Added Cost

Architects & Engineers $1,007.2 $147.0 $15.7 $1,169.8

General Contractors $485.9 $1,265.3 $50.4 $1,801.6

Special Contractors and suppliers

$442.4 $1,762.2 $2,204.6

Owners and Operators $722.8 $898.0 $9,027.2 $10,648.0

Total $2,658.3 $4,072.4 $9,093.3 $15,824.0

Built Sq. Ft. 2002 1.1 billion 1.1 billon 39 billon n/a

Added Cost / Sq. FT. $2.42 / sf $3.7 / sf $0.23 /sf n/a

Source: National Institute for Standards and Technology (Gallaher et. Al 2004)


Purpose of Virtual Design and Construction??

04/08/2023

• PROTECT INVESTMENTS, BANKS, and DEVELOPMENT/GC companies

• Make INFORMED project investment decisions on-time.• REDUCE RISK

• Control cash flow and find optimum for Development Project

• Transparency with Banking Institutions

• Produce EFFECTIVE and EFFICIENT construction projects • Minimize waste, Extra Costs, and Legal Problems

• Used and ALL COMPLEX project WORLD WIDE


Adoption and Industry Trends GSA – General Service Administration

($15.8 Billion Annual Addition Costs)(Largest Owner/Developer in North America)

BIM Mandate from 2007 on all capital projects 2007 – Spatial Plan validation 2008 – Constructability & Energy Analysis 2009– Cost and Schedule

USMC Military BIM mandate in all military development contracts

Owners - North America / Western Europe Airports, Banks, Retail, Hotel Development, Stadiums, Commercial Accepting only candidates with BIM experience


VDC Advantage

PRICE – eliminate unnecessary costs and find the best option TO BUILD

SCHEDULE – optimize activities and reduce project construction time

CONSTRUCTABILITY ANALYSIS – find and fix errors before they become expensive

TEAM – align with expert VDC Engineers TECHNIQUE – most advanced technology and

process

04/08/2023


VDC/BIM Case Study CONCEPTUAL ANALYSIS


Conceptual VDC Analysis Process

• Client/ Owner Input• Financing Option• Development Plan – Size (Sq. Ft), Time

Conceptual Model INUPUT

04/08/2023

Time from client/owner feedback to implementation and analysis is significantly less than traditional methods

Repeat for each new conceptual version in order to arrive at optimum.


3D Parametric Model

Project Specific Cost Database

Location Based Costs Reporting

Automatic Quantity Takeoff

2D Drawing Interpretation

Excel Quantity Data Interpretation

Excel Cost Interpretation and Analysis

4D-5D Cost/Schedule Sequence Simulation

And Analysis

Development of Project Schedules

Project Schedule and Resource Analysis


2D CAD 3D Model

NOT just a pretty pictureParametric Modeling NOT Rendering


Conceptual Quantity Analysis

ArchitecturalQuantity Takeoff

StructuralQuantity Takeoff

Structural Element Query QTO


Office and Hotel Complex2D 3D 4D (3D + vreme)



Comparative Analysis of Versions


UPDATES BUDGET & REPORTING

1. CONCEPT DESIGN CHANGES

2. COMPONENT / MATERIAL CHANGES• Flooring (Wood vs. Tile)• Facades (Stone vs. Precast)• Wall Types (Concrete Type)• Finishes

3. COMPARE VERSIONS• Quantites• Project Costs• Project Schedule• Project Cash Flow

•


VDC/BIM Case Study DESIGN DEVELOPMENT ANALYSIS


VDC at the detail level

3D Detailed Modeling (Arch/Structural/MEP) Highly Accurate Model based Quantity Takeoff 3D Collision Detection and Resolution Model Cost Estimating Model Project Scheduling


3D Detail Modeling


3D Modeling

2D conversion to 3D


RDELECTRICAL MODEL

MECHANICAL MODEL

PLUMBING MODEL

STRUCTURAL MODEL

Virtual Construction

Model

B I M


3D Model Quantity Takeoff


Concrete Columns:

Total: 521

Volume: 1,070 m3

Concrete Slabs:

Total: 68

59,527 m2

22,993 m3

Effective and Precise Quantity Analysis


Effective and Precise Quantity Analysis

Different Element Groups: 112Total Elements: 3,590

Total Area of Ducts: 9,341 m2Total Length of Ducts: 4,428 m


Total Volume of Concrete: 16,178 m3


Total Area of Pipes: 1,179 m2Total Length of Pipes: 3,930 m


3D Collision Detection and Resolution


Conflict Resolution Process

3D Modeling

Conflict Identification

AnalysisKey Conflict Selection

Conflict Resolution


MEP Clash Resolution

April 6th, 2009

Conflicts:

Several conflicts between Mechanical elements and Plumbing pipes

A major conflict area


MEP Clash Coordination

May 6th, 2009

Conflicts:

Zero

Resolution:Re-route the mechanical system


Total Clashes Found


Example of Clashes Found








Walk through model


5D = 3D + cost+ time3D Based Project Schedule


MEP Project Schedule


Ciklogrami




Septembar Oktobar

Novembar Decembar


Benefits of 5D analysis

Enhanced Project Plan (accuracy early) Resource loaded cash predictions Optimized Schedule Predictability (buffer, milestones, start, end) Less Conflicts Improved Project Control


VDC/BIM Case Study PROJECT CONTROL



CONTROL

Financial Material Degree of completion

– Graphical– Analitical


Daily / Weekly Input


Contractor Overiew


Planned vs. Actual


Planirano vs. Aktuelno


Planirano vs. Aktuelno po izvodjacu


Virtual Design and Construction

Technology

virtual design construction

computer simulation

architectural definition

building project