Effects of Bar Reinforcement Arrangement on Deformations and Cracking of Concrete Elements

Abstract

The dissertation will be defended at the public meeting of the Dissertation Defense Council of Civil Engineering in the Senate Hall of Vilnius Gediminas Technical University at 2 p. m. on 18 December 2017.

Deformation analysis of reinforced concrete ties: Representative geometry

“…For example, the representativeness of the 80 × 80 × 640 mm prism (Figure c) was improved by increasing the length of the specimen up to 1000 mm. However, the 100 × 100 × 1000 mm prism remains unrepresentative . The respective results are presented in Figure .…”

“…Final crack pattern of reinforced concrete ( RC ) ties: twin‐specimens with 60 × 60 mm and 100 × 100 mm cross sections (Note: the specimens are the same as shown in Figure ).…”

“…It also relies on the geometry (length) of the tie. Considering the cracking behavior, experimental results obtained by the authors and other researchers (e.g., References , and ) indicated that the crack pattern is dependent on geometry of the specimen and arrangement of the reinforcement. By means of an extensive experimental program (54 ties of different geometry and loading layout were tested), a representative geometry of the samples that allows to assess the end effect is identified.…”

“…Test results indicated that the cover correlates with the scatter of average deformations of the ties. An example of such effect is presented in Figure that shows the tensile load‐average strain diagrams of twin‐specimens with 60 × 60 mm and 100 × 100 mm cross sections.…”

“…Load‐average strain diagrams of twin‐ties with 60 × 60 mm (a) and 100 × 100 mm (b) cross sections, and the absolute differences of the strains of reinforcement |Δ ε s | (c) determined for the twin‐specimens.…”