Technical Control Bureau for Construction SECONED Technical Inspection Service AON Nazomermiddag 08 sept. 2011 Delft

Technical Control Bureau for Construction

SECONED Technical Inspection Service

AONNazomermiddag

08 sept. 2011Delft


General situation of the construction sector:

Non qualityFailures and damages

Direct and indirect costs

Design & works period cuts

Modifications & adaptations

Black box calculations

Subdivision of the works & lack of global

approach Structures & codes complexity

Coordination & communication default

First price & far after quality : short time view


Origin of the damages


Failure & damages :

From watertightness to stability, across infrastructure or superstructure, soil conditions, phasing or structure assembly...

Cost of the non-quality10-15% of the global investment !

(Based on European studies)


Some examples :


Some examples :


How to reduce failures and damages?How to manage these risks ?

Commissie Dekker:



Commissie Dekker: CUR Commissie:



Commissie Dekker: CUR Commissie: Neprom:



The sector • The builders, public and private owners (Engineers, Architects, Contractors) are looking for more confidence (an insurance)

The insurance • Requirement of a second opinion.

Aim Reduce failures and damages by a global prevention action

Design, calculations

Execution, materials


SECO

• Founded in 1934 by the sector as :

– Cooperative association

– Independent technical board

– Independent third party

– Recognized by the (Re) Insurance companies

• Belgian leader also active in more than 20 countries

• More than 3 billions EUR of current works supervised

• Turnover : 22 millions EUR

• 500 to 700 new projects per year (about 25.000 projects)

• 200 persons (160 engineers)


A preventive technical supervision

Concept and design

• Basic principles (soil and subsoil analysis, choice of foundations, stability...)

• Tender documents

• Detailed drawings

• Parallel calculations performed by SECO

Execution on site and in workshops

• Regular visits

• Critical phases

Quality of the materials

• Voluntary certification

• Inspection in factories


Reduction of technical risksSome examples

Railway Station: Communication



Bridge: Calculations



Tunnel: Execution



Building: Design



Bridge: Design - joints



Tunnel

Design Execution



Renovation



Buildings - Steel Structures


Philosophy and methodology of SECO

• Not compulsory in the Netherlands importance of a real adapted service: “Think and bring added value for the client; give confidence”

• Financial & technical independence

• Very high level specialists with large experience

• Team work for each project

• Risk analysis & quick Scan: critical points identification and strength on project weakness, prevent the repetition of similar errors

• Efficiency based on internal knowledge analysis and large experience(Expert System, sharing of know-how)

• “Problem solvers” spirit


Our servicesTwo main sectors of activities

Buildings

• Main fabric

• Shell and finishing works

• Light facades and external joinery

• Timber and steel structures

• Technical installations

• Sustainable construction : support and assessment Valideo and Breeam

Civil Engineering

• Bridges and viaducts

• Towers, chimneys, pylons

• Tunnels

• Roads and runways

• Ports and quay walls

• Water treatment plants and sewage networks

• Landfills


The Inherent Defects Insurance (10 years)

Who • Constructors (Contractors & sub contractors), Architects, Consulting

Engineers, Developers

About • Buildings and Civil engineering works

Cover • Structures (stability) & Majors parts (roofs, facades, ...)


The Inherent Defects Insurance (10 years)

implemented in the Netherlands

• Cover material damages to the works

(structure & major parts) damages causes to third parties possible extension to finishing works & services

• Collective insurance policy : no recourse against faulty parties

• Linked to the works, not the insured parties (one premium)

• Voluntary system (add value essential)


Ir. Wim Hoppenbrouwers

SECONED B.V.Mathenessestraat 59 • 4834 EA Breda

Postbus 4870 • 4803 EW Breda

T +31 (0)76 560 70 90F +31 (0)76 560 70 99

www.seconed.nl

Documents

Technical Control Bureau for Construction SECONED Technical Inspection Service AON Nazomermiddag 08 sept. 2011 Delft