Anchors Post-installed in High Strength Concrete

Journal: Journal of Building Technology DOI: 10.32629/jbt.v5i2.1269

Yuber Mauricio Ruda Arias, Diego Fernando Páez Moreno

Pedagogical and Technological University of Colombia, Colombia.


Nowadays, the great constructions of Colombia and the world, especially road infrastructure, have encouraged the use of high strength concrete. The use of post-installed anchors has also grown simultaneously in all concrete structures. Therefore, an experimental procedure was developed in this investigation to assess post-installed anchor systems based on tensile tests with high strength concrete specimens. The evaluation considers the analysis of the tensile tests results of test specimens with an anchoring system for three lengths (6, 9 and 12 times the diameter of the rod) with two rod diameters (3/8" and 5/8") in two grades of high strength concrete (5000 Psi and 6000 Psi) to determine the effective length and system load. The analysis carried out on the experimental test is to correlate the result of the maximum strength of steel reinforcement used (fy = 4200 Psi) with the variable post-installed anchoring systems. The results obtained are the percentage of system strength depending on anchor length and the effective length that ensures the steel creep and the correlations between the percentage of effective strength achieved for each anchorage length and the use of high strength concrete. With the above parameters, the contribution of high strength concrete to the efficiency of the post-installed anchorage systems was analyzed.


post-installed anchor; high strength concrete


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