1 Gunnar Godawa

HOCHTIEF ViCon

BIM for Project Scheduling

Case study: The Nile Corniche Project – Cairo, Egypt Gunnar Godawa HOCHTIEF ViCon Qatar W.L.L. www.hochtief-vicon.com

2 Gunnar Godawa

HOCHTIEF ViCon

Key facts:

Started in August 2008 9,361 m² Footprint – ±200,000 m2 GFA Includes a 5-star hotel and restaurants 37 stories 4-level parking facility ± 165,000m3 concrete ± 40,000t reinforcement

BIM Use Cases:

3D Design Coordination Full Quantification from the 3D Model 4D Construction Model Integration of BoQ and unit cost in the database 4D Progress and Cost Monitoring

1. The Project

The Nile Corniche

3 Gunnar Godawa

HOCHTIEF ViCon

1. The Project

A collaborative BIM project setup

• Project developer is the driver of BIM

• BIM Manager coordinates 4D model and ensures quality of data delivery

• PM/ CM uses BIM for project controls

• Contractor provides the BIM services related to his scope of works

• Designer and Consultants use BIM results

Project Developer

PM/CM

BIM

Manager

Contractor Consultant Designer

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HOCHTIEF ViCon

1. The Project

Overview of used software systems

3D Quantity

Model

3D Model

creation

4D Schedule

and Progress

So

ftw

are

S

oftw

are

A

pp

lie

d U

se

-c

ase

5 Gunnar Godawa

HOCHTIEF ViCon

Design Coordination System

Building Information System

User interface

Construction Design

2D

ARC/STR

2D

MEP WBS

3D model

4D model

3D design coordination

4D program verification

4D progress monitoring

4D cost monitoring

Model based quantity takeoff

Project

schedule

Cost

estimate

Specs.

BoQ

2. Applied Use-cases

Project phases and supported processes

6 Gunnar Godawa

HOCHTIEF ViCon

2. Applied Use-cases

Quantification from the 3D Model

Usage for Estimation and Scheduling Bill of Quantities / Database 3 4

3D Quantity Take Off 2

Calculation of Quantities

Linking of Specification with 3D Model

Export of Quantities to the database

3D Modeling

Specifications

WBS

3D model

Consolidated 3D model

1

3D Quantity

Model

© HOCHTIEF ViCon

7 Gunnar Godawa

HOCHTIEF ViCon

2. Applied Use-cases

Quantification from the 3D Model – Success factors

• Modeling Guidelines to ensure the re-usage of the model in the project life-cycle

• The 3D model is developed according to the project WBS

• Additional attributes in the 4D model support the easy link with the schedule

• Split of 3D geometry and numerical data enable the flexibility to reuse data in various software tools

3D Model and QTO

Specs

POMI

BoQ

8 Gunnar Godawa

HOCHTIEF ViCon

2. Applied Use-cases

Verification of the Construction Program

4D modeling

Project

Schedules

3D model

Consolidated 3D model

Linking

1

4D program verification meeting 3

Revision of schedules 4

4D

Database

4D schedule analysis 2

Product integrity: Detection of errors

Constructability check and report

Process integrity: Detection of conflicts

© HOCHTIEF ViCon

9 Gunnar Godawa

HOCHTIEF ViCon

2. Applied Use-cases

Verification of the Construction Program – Success factors

• Ensure quality of 4D model by checking that all activities are linked to the model

• Visualize the construction sequence to allow additional schedule analysis

• Include automated verification of the resource distribution over time

• Create reports to document the results of the program verification

10 Gunnar Godawa

HOCHTIEF ViCon

2. Applied Use-cases

Usage of the 4D Model for Progress and Cost monitoring

Progress recording

Actual/planned working schedule

4D progress monitoring/

4D cost monitoring

4

1

4D model update 2

4D

database

Actual/ planned

Schedule

Update database & Visualization 3

4D Construction

Progress Visualization

Building Information System (BIS)

© HOCHTIEF ViCon

11 Gunnar Godawa

HOCHTIEF ViCon

2. Applied Use-cases

Usage of a 4D Model for Progress Monitoring – Success factors

• Define a database structure to ensure data integrity

• Enable the team to access the project schedule without expert software

• Implement regular progress updates in the project database

• Integrate the provided information in regular project tasks such as progress reporting

• Visualize the construction progress for better evaluation and common understanding

12 Gunnar Godawa

HOCHTIEF ViCon

2. Applied Use-cases

Collaboration in the project– One data pool

Approach

Ensure quality and save time and costs through:

• Re-usage of data by all stakeholders

• Better collaboration through common data

• Improved data interoperability

Scheduler

Draftsman

Qto specialist

Management

Estimator

global project

data base

CM

Procurement

Project database

Contractor

© HOCHTIEF ViCon

13 Gunnar Godawa

HOCHTIEF ViCon

3. Case study

Project and Site Management – BIM interface

• One single system with remote access to 3D model and information

• Various project documents are integrated in database

• Considers progress definition of planning department

© HOCHTIEF ViCon

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HOCHTIEF ViCon

• Always current data available through remote access to the information

• 4D/ 5D Model is continuously used for reporting purposes

• Database with life-cycle approach will support later operation phase

• Easy user interface supports the usage of BIM data

Valuable Project Experiences

Proven Team Benefits - Survey

15 Gunnar Godawa

HOCHTIEF ViCon

Gunnar Godawa

Senior Project Manager

HOCHTIEF ViCon Qatar W.L.L.

E-Mail: gunnar.godawa@hochtief.de Mobile: +974 66 60 91 63 (Qatar) www.hochtief-vicon.com

Thank you for your attention!