andrew gutteridge

BUILDING

INFORMATION

MODELLING &

MANAGEMENT

26TH AUGUST 2013

PREPARED FOR

BIM SUMMIT

Case study of fast-track Design and Construct

delivered using BIM

Comparative Contractor Margins

Industry Productivity

Circa CT1

• 8 storey, 14920m² GFA commercial

office building

• New relationships with all parties

• Subcontractors engaged after DD

• BIM included;

• Architecture

• Structure

• Limited mechanical

420 Flinders Street

• 7 storey, 12635m² GFA commercial office

building

• Builder and lead consultants from Circa

CT1

• Subcontractors engaged during DD

• BIM includes;

• Architecture, Structure

• Mechanical, Electrical, Hydraulics

• Fire

• Steel Fabrication

• 4D, 7D

Project Comparison

River Quay • Traditional Tender

• Consultants carried over from a

previous project

• No contractor involvement until

after documentation

• BIM included;

• Architecture

• Structure

• Mechanical

• Quantity Surveyor

• Steel Fabrication, post

documentation

Demonstrating Certainty

River Quay, South Bank - Fabrication

Demonstrating Certainty

Demonstrating Certainty

Demonstrating Certainty

Circa CT1

• 8 storey, 14920m² GFA commercial office building

• New relationships with all parties

• Subcontractors engaged after DD

• BIM included;

• Architecture

• Structure

• Limited mechanical

420 Flinders Street

• 7 storey, 12635m² GFA commercial office building

• Builder and lead consultants from Circa CT1

• Subcontractors engaged during DD

• BIM includes;

• Architecture, Structure

• Mechanical, Electrical, Hydraulics

• Fire

• Steel Fabrication

• 4D, 7D

Project Comparison

APR DEC AUG MAY JUN JUL SEP OCT NOV

420 Flinders Street

MAR

DESIGN DEVELOPMENT

CONSTRUCTION DOCUMENTATION

SCHEMATIC

DESIGN

SUBCONTRACTORS (MECH, ELEC, HYD, FIRE)

Circa CT1

CONSTRUCTION DOCUMENTATION DESIGN

DEVELOPMENT

SUBCONTRACTORS (MECH, ELEC, HYD, FIRE)

2011

APR DEC AUG MAY JUN JUL SEP OCT NOV MAR

2012

Key Differences

CONSTRUCTION

DESIGN DEVELOPMENT

CONSTRUCTION DOCUMENTATION

SCHEMATIC

DESIGN

APR DEC AUG MAY JUN JUL SEP OCT NOV

SUBCONTRACTORS (MECH, ELEC, HYD, FIRE)

basement issued

for construction basement slab poured

ground slab poured

lump sum D&C

agreement

between client

and contractor

Programme (420)

Issued for construction

29th June

Issued for construction

7th September

Issued for construction

9th November

Issued for construction

30th November

Staged Documentation

Architectural Revit Model 50% through Construction Documentation

Structural Revit Model 50% through Construction Documentation

Subcontractor Services CAD Duct / IFC Model 50% through Construction Documentation

One way digital

communication

Two way digital

communication

Traditional

communication

Legend

Cardno (Landscape)

Hollywood

Plumbing (Hyd Subcontractor)

Hutchinson

Builders

(Builder)

SDF Electrical (Elec Subcontractor)

Firerite

Services (Fire sprinklers)

Microfire (Fire alarm)

Yong Feng (Screen

Subcontractor)

XL Precast (Precast Concrete

Subcontractor)

MCG (Certifiers)

MWA (Acoustic)

Lambert &

Rehbein (Traffic)

FM Performance

ideas! (Facilities Management)

BVN (Fitout Architect)

Lancini Group (Client/Building

Owner)

Hunter

Construction

Services (Client Rep)

WSP (Mech, Elec,

Fire)

Bornhorst &

Ward (Structural & Civil)

WSP (Hydraulic)

VAE Group (Mech

Subcontractor)

Casa

Engineering (Steel

Subcontractor)

Inhabit (Façade engineer)

Arkhefield (Project Architect

& Integrated

Delivery

Manager)

Consultant

Sub-Contractor

Contractor

Client

Facility

Management

Project Team Structure

• Major BIM collaborator

• Prior relationship equalled

TRUST

• Motivated to learn

• Integration of structural and

architectural models was a

key joint goal

• Change in communication

critical

Bornhorst + Ward Structural Engineering

• Major BIM collaborator

• Contracted initially for

mechanical services, later

contracted to model fire

services and cable trays for

other subcontractors

• CAD Duct caused difficulties

translating model information

into BIM

• Unfamiliarity with Design

Development process

• Benefitted greatly from

prototyping process as the

mechanical services are

being fabricated in Brisbane

and shipped to Townsville.

VAE Group Mechanical Subcontractor

• Lead services consulting

engineer

• No documentation beyond

Design Development

• Engaged by Hollywood

Plumbing (plumbing sub-

contractor) to model

hydraulics services in Revit

WSP Group Mechanical, Electrical, Hydraulic and Fire Services Engineering

• Started in Jan 2013, after

construction documentation

was completed.

• Model has been incorporated

into both Revit and

Navisworks and checked

against existing structural

steel modelling and

architectural detailing.

CASA Engineering Steel Fabricator

• Consultants novated to Hutchinson’s during Design Development.

• Influential in getting subcontractors to contribute to the BIM.

• Hutchinson’s Primavera construction programme was integrated into the Navisworks BIM.

• Foreman on site is making use of the Navisworks model to supplement existing documentation.

Hutchinson Builders Contractor

Schedule comparing planned vs. actual build progress using the

Navisworks model.

Clash Detection

4D Timelining

Export for FM

Static

Documentation

Base model

‘background’

Dynamic

BVN

(Fitout

Architect)

FM Performance ideas!

(Facilities Management)

VAE Group

(Mech

Subcontractor)

Casa

Engineering

(Steel

Subcontractor)

Navisworks Model

Arkhefield

(Architect)

Bornhorst & Ward

(Structural & Civil)

WSP

(Hydraulic)

Integrated Revit Model

Hutchinson

Builders

(4D)

RVT

IFC

Model Workflow

Associate / Project

Architect

Integrated

Delivery Manager

Model Manager

/ Architect

Senior

Architectural

Technician

Architectural

Student

Principal

Interior

Designer

Architect

Senior

Architectural

Technician

Arkhefield Team Structure

BIM Execution Planning

• Initially driven by us, the Fast track, D & C compressed time frame

limited our ability develop and resolve the BIM EP fully

• Based upon NATSPEC template, the initial documents are overly

complicated and daunting

• Ideally should be managed and driven by the architect, with authority.

Index of NATSPEC BIM EP Sections deleted shown in red.

Embracing Change

• Structural engineer modelled concrete to architects dimensional set

out requirements

• Architect used structural engineers and subcontractors services

models for integrated documentation

• Communication urgency and forward planning

• Prototyping the building rather than documenting a contract

Architecture Structure

Concrete Set Out

Architecture Structure Services

Leveraging Model Information

Leveraging Model Information Additional set out visuals for concrete package

Project Team Action List Contains model views, sketches and notes

Bring Decisions Forward to Reduce Time & Cost

Element Ownership Schedule Mapping out the dates of ownership exchange

100 200 300

Briefing / Pre Design Conceptual Design Schematic Design Developed Design

400 500 600

Contract Documents Construction Post Contract

LOD: Level of Development

Specified Services Equipment Co-ordinating services with pre-cast concrete

Specified Services Equipment Navisworks co-ordination model, showing real equipment sizing

Revit Sun Shading Prototype 3D Sectional Study in Revit, Engineering Analysis

Integrated Revit Model (Architectural, Structural and Services)

Integrated Revit Model (Architectural, Structural and Services)

Sectional views through Navisworks model

Concrete set out

drawing – model

elements from

structural model,

all dimensions

provided by

architect.

Linking the structural, mechanical, hydraulic and steel fabrication models into our Revit model.

Confirm detailing

with the steel

fabrication model

in Revit during

CA

Documentation

FM Pilot from Building Information Model to intelligent Building Information Management

Facilities Management

By considering the FM Ready modeling requirements at the initial stages, it

is possible to produce a model that is useful throughout the full building

Lifecycle.

• This is important to the client, as:

the majority of the interoperability losses are borne by owners, and

the majority of expenditure is incurred during the operational phase.

A Hospital's maintenance cost

is equivalent to the capital cost

every two to thee years!!

12%

22%

66% Planning, Design, & Engineering

Construction

Operations and Maintenance

NIST GCR 04-867, Cost Analysis of Inadequate

Interoperability in the U.S. Capital Facilities Industry

• 66% of interoperability losses

are borne by owners

• $0.23/ existing SF/year

Facilities Management

• Objective:

To pilot Facilities Management integration as a learning exercise for the

key project participants.

– Client desired an FM Ready model

– Not mandated in the Contract

– Approach freed participants to invest in innovation without contractual risk.

Facilities Management

• Process:

1. We Specified FM Ready Model requirements.

2. We Clarified throughout the project.

3. We Verified by integrating to a real FM system.

The Role of the Model in FM

The Model acts as the link between model elements and information to be loaded to the FM System.

1) COBie schedules (Construction Operations Building information exchange) contain most of the data

2) Commissioning & Handover Documentation is linked to the model

Revit + COBie Plug-in

COBie Schedules

Facility Management

System

Input from

Consultants,

Contractor and

Subcontractors

Navisworks Commissioning

& Handover

Documentation

The Role of the Model in Commissioning & Handover for FM

The Role of the Model in Commissioning & Handover for FM

The handover information is linked to the objects, equipment systems and

major assets and is accessible easily via the model.

The Role of the Model in Commissioning & Handover for FM

E.g. Isolate the AHUs and select an object to see all linked information.

Retrieve all relevant documentation (e.g. specs, test reports, technical

information, manufacturer’s data, etc.)

The Role of the Model in FM Operations

The Model acts as the visual navigation interface for integrated FM Applications

FM iBIM Video Demonstration

Visual Navigation Interface Demonstration Scenario:

We are currently working in our FM Work Order system, checking real-time

operational performance stats - when we get a call about the air conditioner

in Retail 1.

• Before we create a work order we want to identify the unit

• Check to see if a service request is already in the system

• See if this type of unit has issues in other locations

FM iBIM Video Demonstration

Facilities Management

• Learnings

Stakeholder and project team engagement, clarity and commitment

is key.

Process is more about identification and management of

assets and information critical to operation.

Remember the ultimate audience for the model and

keep naming/description conventions consistent and de-jargoned.

Once the participants know what is required there is relatively little

ongoing overhead for them contributing to an FM Ready model.

Consultants Contractor Facility Manager

Building Asset Management

Enabling the continuity of asset information through the briefing, design, construction,

commissioning and operation phases of project delivery.

Operations Commissioning Construction Design Briefing

Contractor

Sub-contractor

Consultants

Contractor

Sub-contractor

Collaborative

Design Data

As Built

Information,

Warranties

and

Certificates

Operations and

Maintenance

Data &

Performance

Analysis

Revit

ArchiCAD

Zuuse SmartSight - iBIM

Maximo

Zuuse

Navisworks

Zuuse Contractor +

Sub-contractor

Architect

Structural

Engineer

MEP Consultants

Contractor CAD Duct

Tekla

StruCAD

• Model collaboration pushed within the limitations of Revit for a phase 2B project.

• Changes of communication processes and forward planning are key.

• Significant time investment required to manage BIM processes.

• BIM Execution Plans will become a vital document, ideally should be managed and

driven by the architect with authority.

• Design and Construct projects are conducive to the delivery of a phase 2B project.

• Principle agreements between clients, contractor, consultants and subcontractors need to

be in place early. This enables ownership and reward to motivate engagement.

Outcome Summary