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http://dx.doi.org/10.12652/Ksce.2014.34.6.1707

Structural Performance of Pre-tensioned Half-depth Precast Panels  

Kim, Dong Wook (Chung-Ang University)
Shim, Chang Su (Chung-Ang University)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.34, no.6, 2014 , pp. 1707-1721 More about this Journal
Abstract
Half-depth panels were developed with the merits of CIP (Cast In Place) decks and precast decks for constructability and fast construction. In this paper, details of half-depth panels with pre-tensioning were suggested. For evaluation of structural performance, five half-depth panel specimens were fabricated and static tests were conducted. The cross-sections of these specimens were composed of pre-tensioned half-depth panels and pre-tensioned two-span half-depth panels. Test parameters were the amount of the prestressing force and the longitudinal reinforcements. Static tests on simply-supported slabs showed that ultimate strength was 1.55 times greater than calculated nominal strength. The flexural strength was only 10 % increased and the influence on crack width control was negligible when the member of tendons was increased twice. For two-span continuous specimens, the ultimate strength increased 1.2 times and 1.38 times respectively as the reinforcement was additionally provided. The verified half-depth panels by this research can be effectively utilized for the fast replacement or construction of bridges.
Keywords
Half-depth panels; CIP decks; Pre-tension; Constructability; Flexural strength;
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1 Chung, C. H., Lim. S. J., Hyun, B. H. and Kim, Y. J. (2009). "Fatigue performance of half-depth precast deck panels with loop joint." proc. of 2009 Annual Conference & Civil Expo, KSCE, Vol. 1, pp. 2289-2292 (in Korean).
2 American Concrete Institute (ACI). (2001 Reapproved) ACI committee 224.3 joints in concrete construction, Control of Cracking in Concrete Structures, ACI 224, Detroit.
3 American Concrete Institute (ACI). (2008). ACI Committee 318, Building code requirements for structural concrete and commentary and notes, ACI 318-08, Detroit.
4 Chung, C. H., Kim, Y. S., Hyun, B. H. and Kim, I. G. (2009). "Strength of PSC bridge decks using half-depth precast panel with loop joint." J. of KSCE, Vol. 29, No. 5A, pp. 433-445 (in Korean).   과학기술학회마을
5 Chung, C. H., Sung, Y. E., Hyun, B. H. and Park, S. J. (2008). "Experimental study on connectability of half-depth deck panels with loop joint." J. of KSCE., Vol. 28, No. 4A, pp. 581-590 (in Korean).   과학기술학회마을
6 Leonhardt, F., Walther, R. and Dieterle, H. (1973). "Experiments for determining the load bearing capacity of tension loop joints." Deutscher ausschuss fuer stahbeton heft 226, pp. 1-22.
7 Lewis, S. (2009). Experimental investigation of precast bridge deck joints with U-bar and headed bar joint details, Master's Thesis, University of Tennessee, Knoxville, America.
8 Rosenthal, I. and Shimoni. J. (1984). "Bending behavior of a doubleloop connection between precast concrete slabs." Concrete International 6.11, pp. 30-34.
9 Ryu, H. K., Kim, Y. J. and Chang, S. P. (2007). "Experimental study on static and fatigue strength of loop joints." Engineering structures, 29.2 pp. 145-162.   DOI
10 Ministry of Land, Infrastructure and Transport (MLIT) (2012). Koran bridge design code (Limit State Design), chap. 5.6 serviceability design (in Korean).