Affiliation:
1. Sungkyunkwan University, Suwon, Gyeong-gi, Republic of Korea
2. Korea Expressway Corporation Research Institute, Gimcheon, Gyeongsangbuk, Republic of Korea
Abstract
<p>Currently, the fabricated precast concrete construction is actively applied. It constructs a number of modules to complete the structural member, resulting joint occurs between each module. These connections need to identify its behaviour due to safety and serviceability. However, the prediction accuracy of deflection is not guaranteed. Because of the traditional methods cannot be reflected characteristics of an initial crack of the joint interface and difference of strength of grouting materials. Therefore, a new proposal for deflection evaluation is required to reflect the joint characteristics of precast flexural member. In this study, the mean steel strain characteristics were analysed for three variables; load, concrete compressive strength and rebar ratio. In the result, mean steel strain of rebar is proportional to load and inversely proportional to concrete compressive strength and rebar ratio.</p>
Publisher
International Association for Bridge and Structural Engineering (IABSE)