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Extensions for precast concrete girder FERMO

Extensions and additional options for precast concrete girder FERMO

The best of both worlds

The combination of the prefabricated girder programs RTfermo and FETT is carried out in 2 stages through the successor program FERMO: RTfermo will be discontinued at the end of 2018 and FETT at the end of 2019. RTfermo will remain in product maintenance until 2019 and FETT until 2020.

The modular concept for FERMO corresponds in the broadest sense to the one of FETT, in which the use of high-performance concrete and the fire protection design was integrated into the reinforced concrete base module.

Module Design – bridge construction
  • basics for bridges according to EN 1990 appendix A2 and corresponding national basics for the general building construction, respectively, structural engineering according to EN 1990 appendix A1 and corresponding national annexes for DE, AT, SK/CZ and UK
  • live loads according to EN 1991-1
  • complete reinforced concrete and prestressed concrete design according to DIN 1045-1, EN 1992 1 and corresponding national annexes for DE, AT, SK/CZ and UK
  • specification of the longitudinal reinforcement as single or distributed reinforcement
  • annexes for DE, AT, SK/CZ and UK
  • bridge live loads according to EN 1991-2
  • complete reinforced concrete and prestressed concrete design according to DIN Fachbericht 102, EN 1992 2 and corresponding national annexes for DE, AT, SK/CZ and UK
  • input of the longitudinal reinforcement only as distributed reinforcement
  • damage equivalent coefficients for the fatigue load model for road bridges
  • main tensile stresses SL
Module design – building construction
  • basics for the general building construction, respectively, structural engineering according to EN 1990 appendix A1 and corresponding national annexes for DE, AT, SK/CZ and UK
  • live loads according to EN 1991-1
  • complete reinforced concrete and prestressed concrete design according to DIN 1045-1, EN 1992 1 and corresponding national annexes for DE, AT, SK/CZ and UK
  • specification of the longitudinal reinforcement as single or distributed reinforcement

with Module refurbishment – building construction

  • bearing capacity analysis for refurbishment with utilization levels for a specified longitudinal and shear reinforcement under consideration of possible corrosion damages
  • no design – only the utilization levels, respectively, residual safeties are being determined
Module post-tensioning
  • single-level prestressing
  • double-level prestressing, if stressing bed prestressing as 1. level
  • database with all common prestressing methods
  • quick and easy input of the tendons
  • multiple prestressing conditions – prestress, release, post-tension per side
  • anchorage with / without wedge slip
  • losses due to friction
  • prestressed concrete design under consideration of creep, shrinkage and relaxation
Module fatigue design
  • analysis against fatigue of the longitudinal reinforcement and the prestressing steel
  • analysis against fatigue of the shear reinforcement and stirrups
  • calculation of the fatigue strength by specifying the number of load cycles
  • consideration of the dynamic factor in building construction
  • consideration of the damage equivalent coefficients in bridge construction
  • main tensile stresses FLS

FERMO Extensions SCREENSHOTS

Cover Picture: Laumer Bautechnik GmbH, Massing

Contact sales structural engineering

Silke Bauer
+49 711 7873 157
structuralengineering@rib-software.com

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