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Design of Beam Anchorages in Beam-Column Joints in Seismic Structures

  • Dragos Cotofana
  • Mihai Pavel
  • Viorel Popa
Conference paper
Part of the Springer Natural Hazards book series (SPRINGERNAT)

Abstract

Proper anchorage of beam reinforcement in beam-column joints is necessary for a stable hysteretic behavior of seismically loaded structures subjected to large lateral displacements. Anchorage requirements associated with the use of higher strength steel such as S500 generated the need to increase the anchorage lengths and concrete strengths. Formerly used concrete strength classes such as C20/25 and C25/30 are largely replaced with higher quality concrete such as C40/50 or more. In common design practice, anchorage provisions of the repealed Romanian standard STAS 10107/0-90 are still informally used. This might lead to poor anchorage details and related structural problems. This paper draws attention on the specifications of the current standards for anchorage of beam reinforcement. Practical design rules are presented as well.

Keywords

Beam-column joint Anchorage Splices Yielding Hysteresis Ductility 

References

  1. ACI-ASCE 352 (2002) Recommendations for design of slab-column connections in monolithic reinforced concrete structures. ACI Struct J 85(6):675–696Google Scholar
  2. CEN (2004) Eurocode 2: design of concrete structures—part 1-1: general rules and rules for buildings. European Standard EN 1992-1-1, BrusselsGoogle Scholar
  3. CEN (2004) Eurocode 8: design of structures for earthquake resistance—part 1: general rules, seismic actions and rules for buildings. European Standard EN 1998-1, BrusselsGoogle Scholar
  4. Code ACI (2011) Building code requirements for structural concrete and commentary (ACI 318M–2011). American Concrete Institute, Detroit, MichiganGoogle Scholar
  5. Jirsa JO, Marques JL (1972) A study of hooked bar anchorages in beam-column joints. Department of Civil Engineering, Structures Research Laboratory, University of Texas at AustinGoogle Scholar
  6. Ministry of Regional Development and Public Administration of Romania (2013) Seismic design code. Part 1—design provisions for buildings, P100-1/2013, BucharestGoogle Scholar
  7. Paulay T, Priestley MN (1992) Seismic design of reinforced concrete and masonry buildings. John Wiley & Sons Inc., New YorkGoogle Scholar
  8. Postelnicu T, Popa V (2009) Proiectarea nodurilor cadrelor de beton armat in codurile de proiectare actuale, AICPS Review Nr.2-3/2009 (in Romanian)Google Scholar
  9. Wallace JW (1996) Use of mechanically anchored bars in exterior beam-column joints subjected to seismic loads. Department of Civil Engineering, University of California, LAGoogle Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Technical University of Civil Engineering of BucharestBucharestRomania
  2. 2.SC Allied Engineers Grup SRLBucharestRomania
  3. 3.SC Altfel Construct SRL BucharestBucharestRomania

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