Closure to 'Eliminating Deck Joints Using Debonded Link Slabs: Research and Field Tests in Ontario' by Alexander Au, Clifford Lam, Jim Au, and Bala Tharmabala

摘要

The concrete deck of the model was constructed in two stages. The first stage was the composite portion, and the second stage was the link slab portion. The 28-day compressive strengths for Models 1 and 2 and for different stages are given in Table 1. Fig. 1 shows the reinforcement details of experimental Model 1. It provides a strong reinforcement, and therefore, no crack was observed before the application of the cyclic load. The moment attributable to the dead load was 5 kN•m, and the cracking moment was approximately 2 kN-m. In the experiment, the test was performed in an inverted position, so that the two point loads represented the interior supports from the pier. In the experiment, the maximum moment at the link slab can be given by PL/4(1 - s/L), where P is the total applied load, L is the span of the sample, and s is the distance between the two load points.