Over the last few decades, the use of precast concrete components have been significantly increasing in building and bridge construction due to their quality, durability, and speed of construction. Precast components need to be fully connected to ensure the integrity, serviceability, and durability of the completed structure. Several grout-filled sleeves are currently being used to splice reinforcing bars of the adjacent precast components. These sleeves require very tight tolerances in precast production to ensure the alignment of the spliced bars, which usually results in using larger and more costly sleeves than needed. The objective of this paper is to introduce a reinforcing bar splice sleeve that accommodates current production tolerances in addition to being economical and easy to produce. The design method of the proposed splice sleeve and experimental investigation conducted using two alternatives of the proposed bar splice sleeve are presented. Eighteen specimens for splicing #8 (No. 25) and #9 (No. 29) bars were tested using different sleeve lengths. Test results indicated that the proposed bar splice sleeve have adequate capacity to fully develop reinforcing bars while being simpler to use and more economical than current splice sleeves.
تاريخ النشر
12/01/2015
الناشر
14th International Conference on Structural & Geotechnical Engineering (ICSGE14)
ايليا عزت عشم حنين | Eliya Ezzat Asham Henin, Ph.D., P.E., S.E., PMP. | 5598