CORDIS
EU research results

CORDIS

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IMPROVED FASTENING SYSTEMS OF CLADDING WALL PANELS
OF PRECAST BUILDINGS IN SEISMIC ZONES

Project information

Grant agreement ID: 314122

Status

Closed project

  • Start date

    1 August 2012

  • End date

    31 July 2015

Funded under:

FP7-SME

  • Overall budget:

    € 2 775 364,09

  • EU contribution

    € 2 118 600

Coordinated by:

BUREAU INTERNATIONAL DU BETON MANUFACTURE

Belgium

Objective

The current design practice of precast buildings is based on a frame model where the peripheral cladding panels enter only as masses without any
stiffness. The panels are then connected to the structure with fastenings dimensioned with a local calculation on the base of their mass for anchorage forces orthogonal to the plane of the panels. This design approach does not work, as it was recently dramatically shown by several recent violent shakes, like L’Aquila in 2009 and Grenada in 2010. The panels, fixed in this way to the structure, come to be integral part of the resisting system conditioning its seismic response. The high stiffness of this resisting system leads to forces much higher than those calculated from the frame model. These forces are related to the global mass of the floors and are primarily directed in the plane of the walls. Furthermore, the seismic force reduction in the type of precast structures of concern relies on energy dissipation in plastic hinges formed in the columns. Very large drifts of the columns are needed to activate this energy dissipation foreseen in design. However, typically the capacity of the connections between cladding and structure is exhausted well before such large drifts can develop. Therefore, the design of these connections cannot rely on the seismic reduction factor used for design of the bare structure. New technological solutions for connectors with proper design approaches are
urgently required. The research project SAFECLADDING is thus aimed to investigate, by means of a balanced combination of experimental and
analytical activity, the seismic behaviour of precast structures with cladding wall panels and to develop innovative connection devices and novel design approaches for a correct conception and dimensioning of the fastening system to guarantee good seismic performance of the structure throughout its service life.

Coordinator

BUREAU INTERNATIONAL DU BETON MANUFACTURE

Address

Rue D Arlon 55
1040 Bruxelles

Belgium

Activity type

Other

EU Contribution

€ 782 738,86

Administrative Contact

Alessio Maria Rimoldi (Mr.)

Participants (13)

YAPI MERKEZI PREFABRIKASYON AS

Turkey

EU Contribution

€ 44 446,76

ASSOBETON - ASSOCIAZIONE NAZIONALE INDUSTRIE MANUFATTI CEMENTIZI

Italy

EU Contribution

€ 418 306,20

TURKIYE PREFABRIK BIRLIGI DERNEGI - TURKISH PRECAST CONCRETE ASSOCIATION TPCA

Turkey

EU Contribution

€ 580 609,07

EUROPEAN ENGINEERED CONSTRUCTION SYSTEMS ASSOCIATION EV

Germany

EU Contribution

€ 54 120

POLITECNICO DI MILANO

Italy

UNIVERZA V LJUBLJANI

Slovenia

NATIONAL TECHNICAL UNIVERSITY OF ATHENS - NTUA

Greece

ISTANBUL TEKNIK UNIVERSITESI

Turkey

JRC -JOINT RESEARCH CENTRE- EUROPEAN COMMISSION

Belgium

B.S. ITALIA SPA

Italy

EU Contribution

€ 95 599,25

AFAPREFABRIK PREFABRIKE BETON SAN.VE TIC. AS

Turkey

EU Contribution

€ 15 014,61

YAPI MERKEZI INSAAT VE SANAYI AS

Turkey

EU Contribution

€ 14 676

ASOCIACION NACIONAL DE PREFABRICADOS Y DERIVADOS DEL CEMENTO - ANDECE

Spain

EU Contribution

€ 113 089,25

Project information

Grant agreement ID: 314122

Status

Closed project

  • Start date

    1 August 2012

  • End date

    31 July 2015

Funded under:

FP7-SME

  • Overall budget:

    € 2 775 364,09

  • EU contribution

    € 2 118 600

Coordinated by:

BUREAU INTERNATIONAL DU BETON MANUFACTURE

Belgium