Construction Design Management (CDM) Regulations CDM Awareness

Nepal Engineer’s Association.

07 July 2017

Programme.

1. Introduction

• The case for CDM

2. What is it about

• Why, what, implications, what it means to us as industry professionals

3. Understanding CDM & Technical Aspects

• Failure examples and good examples • What CDM means for us and for projects

4. CDM Delivery Strategies

• • • •

CDM Applications on projects CDM Engineer How the regulations works Project delivery and the distributed approach

CDM | Introduction Case Study

CDM | Introduction and Case Study. AMBIANCE PLAZA, US (1987) CATASTROPHIC FAILURE   

16 storey building collapse half way through construction The collapse spurred a large scale 8 eight day rescue attempt 28 workers dead

PROJECT DESIGN IS NOT JUST ABOUT CODES!

Ambiance Plaza PROJECT DESIGN IS NOT JUST ABOUT CODES! Causation Factors:

Poor design and construction issues • • • • • • • • • • •

Many design streams-Design was fragmented among so many sub-consultants Lack of coordination and poor information flow Several design deficiencies went undetected Wrong assumption of the allowable bearing pressure Foundation issues, sub standard material & poor workmanship Substandard welds details Design of Method of work and its management Lack of temporary works design Improper design of post-tensioning tendons No consideration of temporary works Instability caused by lateral displacement

Response: Senate Bill 2518 (1988) was proposed for increased responsibility on design professionals

Legal Repercussions: -20 or more separate parties were found guilty of ‘‘widespread negligence, carelessness, sloppy practices, and complacency.’’ -They all contributed, in varying amounts, to the $41,000,000 settlement fund. -Those injured and the families of those killed in the collapse received $30,000,000. -Another $7,600,000 was set aside to pay for all of the claims and counterclaims between the designers and contractors of L’Ambiance Plaza Think Design and Build!

Ethical Aspects: -Although the L’Ambiance Plaza building was designed to be safe once it was completed, during construction it did not have an adequate level of stability -This is all too common in the construction industry today (Heger 1991)

Technical Aspects:

-Although buildings constructed by the lift-slab method are stable once they are completed, if great care is not taken during construction, they can be dangerous. -Temporary lateral bracing, Concrete punching shear and connection redundancies should be provided in the structure, Sway bracing (cables that keep the stack of floors from shifting sideways) should be used, etc.

Professional and Procedural Aspects: -Responsibility for design was fragmented among so many subcontractors that several design deficiencies went undetected -If the engineer of record had taken responsibility for the overall design of the building or a second engineer had reviewed the design plans, these defects probably would have been detected -A licensed professional engineer should be present during construction to ensure that these guidelines are followed -Standardized step-by-step procedures for lift-slab construction should be established to ensure the safety of the construction workers

Educational Aspects: -Failure plays an important role in engineering practice -Through failure analysis, the industry professional can learn to avoid similar technical errors, which allows them to build stronger, safer, structures -Because failure analysis plays such an integral role in the construction industry, it only makes sense that, the industry professionals should take into account how to analyze engineering failures as well as their importance to any engineer’s professional life. Think Forensic Engineering

CDM | The regulations What is it about?

Causes of Failure

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13.

Insufficient Details Lack of coordination Lack of communication Lack of co-operation Poor information quality Information flow Insufficient understanding (competence) Performance issues Failure to learn from failures Tight deadlines Poor management Poor design Poor planning

ASTAD PROJECT MANAGEMENT

1.What is CDM? • •

• • • • •

Look in the future Good engineering and enhanced design achieved through better planning , design and management (Project Design and construction) with emphasis on safety performance Focus on life cycle performance, safety and effectiveness Law, legal repercussions, Duty holders and accountability Technical & managerial en engineering response to projects Apply to all construction projects in Qatar CDM is not HSE!

2.Why CDM? • • •

• •

Law- Key piece of legislation under QCS 2014 CDM Regulations constitute criminal law – it is a criminal act to contravene them. “Contravening these Regulations is a criminal offence and punishable in a Qatar Court of Law” 1.1.1.1(3) Impacts everyone Organization, teams, business units, teams (design team, procurement team ,construction team, etc.) and individuals

ASTAD PROJECT MANAGEMENT

CDM | Understanding CDM Technical Aspects and Examples (Failure By Design)

Palau de les Arts Reina Sofia Opera House, Valencia, Spain -The complex was inundated with 7 feet of floodwaters, destroying electronic equipment in the lower levels -Construction difficulties -Maintenance issues -Sections of the mosaic roof began to come off in high winds

Peckham Library UK Will Alsop's award-winning library. It takes four days to change the light bulbs in an awardwinning library. It had to close its doors to the public while engineers built special platforms around the bookshelves to allow them to get at the high ceilings

Guggenheim museum, Bilbao -Nasty rust that has turned large areas of its famous exterior from shiny silver to dull brown -One American newspaper claimed that ‘ just 3 years after it opened, it has started to resemble the 'rusting hull of an abandoned barge'. -Spokesman for the museum 'The areas involved are gigantic, curved and very difficult to reach' - The footbridge to the Guggenheim museum in Bilbao has required the city to pay out medical costs for dozens of pedestrians who slipped on the glass surface

Zaha Hadid’s Guangzhou Opera Centre -Falling glass -Cracked walls & ceilings -Attributed to constructability -Maintenance issues

Learning Centre in Vienna -Piece of cladding falling off & Chunks of concrete Just after a year -Cleaning issues

Rem Koolhaas’ Milstein Hall - Constructability- dysfunctional details + dangerous details - Maintenance issues

Cheese Grater tower London -2014- Two high strength bolt broken and fell off -Jan 2014- A third one fractured

Ysios Winery -Leaking roof -Architect ordered to pay

Assumptions management -

Change to existing structures -Wind loading effect

Work on existing structures -Wind loading not considered

Minesota Bridge -Design management -Maintenance management

London- Walkie Talkie Tower

Walt Disney Concert Hall

“..Fires heat rays at anything nearby….like a crude laser” “Unluckily for humanity, Frank Gehry gave a building an uncontrollable death ray”

Las Vegas

Many cases of skin cancer reported

- Useability issues

Pavement (Doha) -Poor design -Constructability issue -Quality issues

China Demolition went wrong Lack of planning, control and management

Reminder! ‘Construction works’ is defined as demolition or dismantling of any structure and the removal of materials and waste

Recap 1. 2. 3. 4. 5. 6.

Design beyond standard Rethink design Life cycle performance Better Engineering Prosecution Challenges

ASTAD PROJECT MANAGEMENT

CDM | Good example

CDM | Good examples -QF Stadium • High strength bolt issue • Discuss with ARUP • Refer to their research department • Document that as a residual risk and reinforced in the project specifications • Passed on to CONTRACTOR in tender • Testing and Control for construction

CDM | Delivery Strategies General strategies

CDM Application on Projects Set up & Management: • • • •

Project characterization Awareness Team competence System tools & Techniques

Techniques • • • • • • • • • • • •

Analyse each phase of the project life cycle Probe into the future Decode the danger Zoom in Zoom out approach Technical Quality Principles of Prevention Coordination & Cooperation (BIM) Assumptions management Issues Management Information flow Integrated approaches, e.g. Security, HS, Environment, TM, Logistics, welfare, QAQC, etc. Decoding the danger- Zoom in & zoom out approach

ASTAD PROJECT MANAGEMENT

CDM | Decoding the Danger

CDM | The Engineer – QCS 2014 defines the CDM Engineer as Refer Section 1 (General) – Part 1 (Introduction) – 1.4 ‘means the party appointed by the Owner to administer the Contract’ = PMC

– Meaning by default PMCs take on the role – Check if in place – Client need to appoint CDM Engineer which is the PMCM

CDM | How the Regulations work?. Principles -Those create risks are better placed to address them • If failure, blame me • Blame me because I designed it (and I checked it)! Failure by design • Similarly, ‘blame me because I planned, prepared and managed it’ -Law (affecting almost everything on a construction project, including organisation, their project management framework and business) -Make the usual suspects, duty holders

CDM | Project delivery -Duty holders -Documents -Design deliverables -Construction Deliverables -Employers requirements (Scope of Works, GCOC) -Tender, technical response, evaluationSystems -Documents and information flow -Monitoring

CDM | Distributed Function. -CDM is delivered through a distributed approach : CDM duties and responsibilities are distributed amongst suitably qualified individuals involved on projects, teams and subject matters -Training and competence -Management Systems -Project Characterization

CDM | Example Document.

CDM | CDM Construction-Summary • • • • • • • • • • •

Built on same principles and knowledge areas Planning, design and management of works Temporary works CPP Safe systems of work Construction & Logistics H&S File O&M Client duties! Preparation for the next project stages Etc.

•

What to do if too late?

CDM | Management Approach 1. •

Develop CDM management system – CDM Design (Design Manager) – CDM Construction (Construction Manager)

• • • • • • •

Implement a CDM Policy Have the letter (check client is aware of duties) RFI Design liability H&S file preparation (linked with BIM and GIS) Design guidance document Construction guidance document

•

Audit – Check system – Think about audit – Procurement documents – Bid Documents Keep separate from HSE!

•

CDM | Key Points. -Designing beyond standard! (CDM knowledge areas practically integrated into a project development) -Positive contribution and consistent with QNV 2030 -Demonstration of Qatar Government commitment to improve the construction industry performance and reduce incidents - Legal management requirements, Life cycle, key documentations, etc.

Thank you

Sheik A Pahary [email protected] 66167392