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YTL HQ (BB Tower)Design Methodology

Adam Sheather(Consultant)

YTL Corporation

BIM LEADAECOM

Who is YTLYTL Corporation Berhad is an integratedMalaysian infrastructure developer withextensive international operationsThe core businesses of the• Utilities• High Speed Rail• Construction Contracting• Cement Manufacturing• Property development and Investment• Hotel Development• E-commerce initiatives and• Internet-based education solutions and

services.

YTL Corp, together with its four listed entitiesin Malaysia has a combined marketcapitalisation of approximately RM31.2 billion(US$7.66 billion) as at 31 July 2016. YTL Corpalso owns prime retail assets in UK, Singapore,Malaysia, Japan, China and Australia.. With alandbank of over 2,000 acres in 2 continents.Current employing 10,000 people andservicing 12million clients annually.

YTL Companies – My Clients• Property Development• Hotels & Resorts• 4G Network & Telecom

Stores• Power• Water• High Speed Rail Network• Cement Contracting

• SPYTL Team– Design Team– Preconstruction– Site Team– Surveying

OLD YTL HQ• Old HQ 11 Stories• Team spread across 6 Areas

& 12 Offices in KL• Older Building

Site Fly-Over

Drone Fly Over

Consultant Makeup• Client – YTL Corp• Concept & Façade – KPF NY• Key Interior – SPYTL• Design Architect – SPYTL• Architect of Record –Veritas

• Contractor – SPYTL• O&M – YTL Land

• Façade – BFG• ESD - JHA• Structure – SPYTL• Elec & Comms – SPYTL• Mech & Fire - WebCo

Original Development• Concept in 2012• CAD Files (Obsolete)• Produce Drawings• Team Proficient in CAD only• Disconnect between Design

& Construction

New Workflows• Changed to 42 Stories• Changed to BIM Deliverables• Government Submittals• Trade Packages (Tender)• Construction Packages• WIP & FYI – Documentation• Team BIM Enabled

New Coding System• Applied to

– Keynotes (Specs)– QTO– Cost Breakdown Packages– Trades– Programme (Tasks)– Procurement Mapping– Change Management– RFI Codes

Coding System Implementation1. Master Programme to be Created2. JIT Drawing List to be Issued3. Specifications to be issued4. Built Revit model (structural, architectural and

M&E).5. DO & BP Issued – Refer Veritas6. Project coding & Schedules list to be generated

from the Revit and distributed to all department.7. JIT Updated8. QS will use VICO to prepare quantity take off.

9. QS will issue final BOQ. (by trade level/JIT) any furtherdetails to be issued upon request).

10. JIT Updated11. QS to prepare detailed budget.12. Planning to use Vico to prepare detailed program and

resource requirement13. Document control to follow the same coding.14. Chart of account and Cost allocation system to be

prepared using the same codes.15. Quality control reports to be aligned with the coding.16. All design changes to be coded and revise model, BOQ,

budget, schedule to be prepared accordingly.

YTL Model Methodology• Model For Approval• Model for Tender (UoM’s not

LOD’s)• Only 1 copy of something to exist

if you need it, log it in Revizto• If an issue isn’t in Revizto it does

not exist• Model -> Approve -> Site Eng

Sign-off -> Setout Document

For Pricing – PlaceholdersAre Awesome!

For Setout

Client• Heavy Visualisation Usage• Revizto Reporting• Brief Management• Revizto is Source Of Truth for Issues/Model• Vico/Primvera/Excel is Source Of Truth for QTO,

Construction• Revit Schedules is Source of Truth for Design

Architectural KPF Workflow• Rhino Envelope• Revit Model (Panelisation)• Flux (Outlines)

• 2D – Tieback details• Schedule of Panels

• Façade Consultant &SPYTL Used Revit Model

SPYTL Architectural Model• Co-Located Design Teams

for critical design periods• All Teams started in the

Architectural Model– Structure – Model– Mech – Spaces– Elec – Components by Space– Lighting – Components

by Space– Hyd – Fixture Counts

ESD Consultant• Developed Model in-house

to save costs• Provided with Parts Based

Model• Sent multiple iterations• Provided Access to Revizto

for Documentation & Data.

Structural Workflow• Arch & Engineers worked

together in the same Model• Model was split AFTER

Tender• Arch owned stairs, ramps &

all structural elements andwould change based onStructural issues or designchanges.

Electrical Design• Lighting & Power provided

in Room Schedules as a tag.• Allowed fast sizing of panels• Layout was done ONCE

interiors were approved forTender

Mech & Fire (Webco)• SPYTL trained Webco in

Revit• SPYTL would manage all co-

ordination & would updateWebco’s Models

• Webco documented workpackages.

QS Roadmap• Provided Revit Schedules• Provided Tender Model

(Vico)• WIP Models Provided once

a week• QTO done in Vico (Costing

done in excel)

Site Implementation• Quick Optimisation Checks with

Vico• Import into Primavera• Developed Site Logistics in Revit• Maintained & Tracked all Penos

Construction Start

Bits & Pieces

Adam SheatherBIM LEAD

Questions? . . .