DD CEN/TS 1992-4-1:2009

Foreword
1 Scope
  1.1 General
  1.2 Type of fasteners and fastening groups
  1.3 Fastener dimensions and materials
  1.4 Fastener loading
      1.4.1 Type of loading
      1.4.2 Direction of loading
  1.5 Concrete strength
  1.6 Concrete member loading
2 Normative references
3 Definitions and symbols
  3.1 Definitions
  3.2 Notations
      3.2.1 Indices
      3.2.2 Actions and Resistances
      3.2.3 Concrete and steel
      3.2.4 Units
4 Basis of design
  4.1 General
  4.2 Required verifications
  4.3 Design format
  4.4 Verification by the partial factor method
      4.4.1 General
      4.4.2 Partial factors for indirect and fatigue actions
      4.4.3 Partial factors for resistance
  4.5 Project specification and installation of fasteners
5 Determination of concrete condition and action effects
  5.1 Non-cracked and cracked concrete
  5.2 Derivation of forces acting on fasteners
      5.2.1 General
      5.2.2 Tension loads
      5.2.3 Shear loads
6 Verification of ultimate limit state
  6.1 General
7 Verification of fatigue limit state
  7.1 General
  7.2 Derivation of loads acting on fasteners
  7.3 Resistance
8 Verification for seismic loading
  8.1 General
  8.2 Requirements
  8.3 Actions
  8.4 Resistance
9 Verification of serviceability limit state
Annex A (normative) - Local transmission of fastener
        loads into the concrete member
  A.1 General
  A.2 Verification of the shear resistance of the concrete
      member
  A.3 Verification of the resistance to splitting forces
Annex B (normative) - Plastic design approach, fastenings
        with headed fasteners and postinstalled fasteners
  B.1 Field of application
  B.2 Loads on fastenings
  B.3 Design of fastenings
      B.3.1 Partial factors
      B.3.2 Resistance to tension load
      B.3.3 Resistance to shear load
Annex C (informative) - Durability
  C.1 General
  C.2 Fasteners in dry, internal conditions
  C.3 Fasteners in external atmospheric or in
      permanently damp internal exposure
  C.4 Fasteners in high corrosion exposure by
      chloride and sulphur dioxide
Annex D (informative) - Exposure to fire - design method
  D.1 General
  D.2 Partial factors
  D.3 Resistance under fire exposure
      D.3.1 General
      D.3.2 Tension load
      D.3.3 Shear load
      D.3.4 Combined tension and shear load
Annex E (informative) - Recommended additions and alterat ons
        to EN 1998-1:2004, 4.3.5 (Design of structures for
        earthquake resistance) for the design of fastenings
        under seismic loading
  E.1 General
  E.2 Additions to Section 4.3.5.1 of EN 1998-1:2004
  E.3 Additions and alterations to EN 1998-1:2004, 4.3.5.2
  E.4 Additions to EN 1998-1:2004, 4.3.5.3
  E.5 Additions and alterations to EN 1998-1:2004, 4.3.5.4

Defines a design method for fasteners for structural purposes, which are used to transmit actions to the concrete.

1.1 General 1.1.1 This CEN/TS provides a design method for fasteners for structural purposes, which are used to transmit actions to the concrete. Inserts embedded in precast concrete elements during production, under FPC conditions and with the due reinforcement, intended for use only during transient situations for lifting and handling, are covered by the CEN/TR “Design and Use of Inserts for Lifting and Handling Precast Concrete Elements??, by CEN TC 229. 1.1.2 This CEN/TS is intended for applications in which the failure of fastenings will: 1) result in collapse or partial collapse of the structure, or 2) cause risk to human life, or 3) lead to significant economic loss. 1.1.3 The support of the fixture may be either statically determinate or statically indeterminate, defined as multiple anchor use in some European Technical Approvals (ETAs). Each support may consist of one fastener or a group of fasteners. 1.1.4 This CEN/TS is valid for applications which fall within the scope of the series EN 1992. In applications where special considerations apply, e.g. nuclear power plants or civil defence structures, modifications may be necessary. 1.1.5 This CEN/TS does not cover the design of the fixture. The design of the fixture shall be carried out to comply with the appropriate Standards. Requirements for stiffness and ductility of the fixture are given in clauses 5 and 8. 1.2 Type of fasteners and fastening groups 1.2.1 This CEN/TS applies to: a) cast-in fasteners such as headed fasteners, anchor channels with rigid connection between fastener and channel; b) post-installed anchors such as expansion anchors, undercut anchors, concrete screws, bonded anchors, bonded expansion anchors and bonded undercut anchors. For other types of fasteners modifications of the design provisions may be necessary. (...)