Assessment of Fracture Behaviors for CIP Anchors Fastened to Cracked and Uncracked Concretes

  • Yoon, Young-Soo (Department of Civil & Environmental Engineering, Korea University) ;
  • Kim, Ho-Seop (Department of Civil & Environmental Engineering, Korea University) ;
  • Kim, Sang-Yun (Structural Systems & Site Evaluation Department, Korea Institute of Nuclear Safety)
  • 발행 : 2001.07.01

초록

This paper presents the crack effect on CIP anchors and prediction of tensile capacity, as governed by concrete cone failure. Single anchors where located at center of concrete specimen. Three different types of cracks such as crack width of 0.2 mm and 0.5 mm, crack depth of 10 cm and 20cm , and crack location of center and off-center point were simulated. Static tensile load was applied to 7/8-in. CIP anchors of 10 cm and 20 cm embedment length in concrete with compressive strength of 280 kgf/$\textrm{cm}^2$. Tested pullout capacities were compared to the values determined using current design methods (such as ACI 349-97, ACI 349 revision and CEB-FIP which is based on CCD Method). The comparison of CCD Method and ACI revision showed almost the same values in uncracked concrete specimen. In cracked concrete, CCD Method predicted conservative values. Three-dimensional non-linear FEM modeling also has been performed to determine the stresses distribution and crack inclination.

키워드

참고문헌

  1. ACI Structural Journal v.92 no.3 Behavior of Fasteners Loaded in Tension in Cracked Reinforced Concrete Eligehausen, R.;Balogh, T.
  2. ACI Structural Journal Load-Deflection Behavior of Cast-in-Place and Retrofic Concrete Anchors Cook, R.A.;Collins, D.M.;Klingner, R.E.;Polyzois, D.
  3. ACI Structural Journal v.92 no.1 Concrete Capacity Design (CCD) Approach for Fastening to Concrete Fuchs, W.;Eligehausen, R.;Breen, John E.
  4. Fastening to Concrete v.06 no.16 ACI 349 Appendix B Draft
  5. New Appendix B, Fastening to Concrete Proposed Revisions to "Code Requirements for Nuclear Safety Related Concrete Structures and Commentary ACI 349
  6. Standard Specification for Performance of Anchors in Cracked and Non-cracked Concrete Element ASTM
  7. Standard Specification for Performance of Anchors in Cracked and Uncracked Concrete Elements ASTM E06.13-Z5819Z Draft 4
  8. Standard Test Method for Strength of Anchor in Concrete and Masonry Elements ASTM E488-96
  9. ACI Structural Journal Three-Dimensional Modeling of Anchorage Subject to Shear Loads Dalati, R. El;Berthaud, Y.;Mesureur, B.;Ghassan, M.
  10. ABAQUS/Standard User's Manual ABAQUS/Theory Manual Hibbitt Karlsson & Sorensen INC