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http://dx.doi.org/10.14190/JRCR.2022.10.4.395

An Experimental Study on the Estimation of Transfer Length of Strand in the Prestressed Hollow Core Slab  

Jung-Soo, Lee (Hybrid Structural Testing Center, Myongji University)
Jong-Hyun, Ryu (R&D institute, GS E&C)
Seung-Hee, Kwon (Department of Civil and Environmental Engineering, Myongji University)
Jin-Kook, Kim (Department of Civil Engineering, Seoul National University of Science and Technology)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.10, no.4, 2022 , pp. 395-401 More about this Journal
Abstract
In this study, the transfer length of strand was measured for three types of HCS member(H200, H320, and H400) manufactured by the pretension method. Strain gauges were attached in longitudinal direction at regular intervals on the sides of the HCS members, and the strain was measured during the cutting process of HCS. The stain at the cutting point was zero, and gradually increases in the central direction of the member, converging to a constant value after passing the transfer length. In the case of H200 members in which the strands were arranged one by one, the transfer lengths were formed within the range of the design equation (up to 762 mm). The transfer length of the H320 member and the H400 member, in which three strands were arranged, was higher than the design range (850 mm or more).
Keywords
Hollow core slab; Transfer length; Strand; Strain;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 ACI Committee 318 (2019). Building Code Requirements for Structural Concrete (ACI 318-08) and Commentary, American Concrete Institute, Farmington Hills, MI.
2 Balazs, G. (1992). Transfer control of prestressing strands, PCI Journal, 37(6), 60-71.
3 Briere, V., Harries, K.A., Kasan, J., Hager, C. (2013). Dilation behavior of seven-wire prestressing strand-the Hoyer effect, Construction and Building Materials, 40, 650-658.   DOI
4 CEN (2004). EN 1992-1-2 Eurocode 2: Design of concrete structures. Part 1-2: General rules-Structural fire design, Comite Europeen de Normalisation, Brussels, Belgium.
5 Cousins, T.E., Johnston, D.W., Zia, P. (1990). Transfer and development length of epoxy coated and uncoated prestressing strand, PCI Journal, 35(4), 92-103.   DOI
6 Dang, C.N., Floyd, R.W., Hale, W.M, Marti-Vargas, J.R. (2016). Measured transfer lengths of 0.7 in. (17.8 mm) strands for pretensioned beams, ACI Structural Journal, 113(3), 525-535.
7 Han, S.W., Moon, K.H., Kang, D.H., Im, J.H., Kim, Y.N. (2014). Evaluation of shear strength of precast-prestressed hollow core slabs based on experiments, Journal of the Korea Concrete Institute, 26(5), 635-642 [in Korean].
8 Hanson, N.W. (1969). Influence of surface roughness of prestressing strand in bond performance, PCI Journal, 14(1), 32-45   DOI
9 Kaar, P.H., Hanson, N.W. (1975). Bond fatigue tests of beams simulating pretensioned concrete crossties, PCI Journal, 20(5), 65-80.   DOI
10 Kang, J.H., Kang, S.M., Eom, T.S., Kim Y.D., Park, H.S. (2022). Shear strength of prestressed hollow core slabs according to section shape, Journal of the Korea Concrete Institute, 34(1), 73-82 [in Korean].   DOI
11 KDS 24 14 20 (2018). Korea Construction Standards Center, Korea [in Korean].
12 KDS 24 14 21 (2021). Korea Construction Standards Center, Korea [in Korean].
13 Kim, J.H., Moon, D.Y., Ji, G.S., Kim, K.S. (2008). Dynamic behavior of pretensioned concrete member during detensioning, KSCE Journal of Civil and Environmental Engineering Research, 28(5A), 747-756 [in Korean].
14 Kim, J.K., Yang, J.M., Yim, H.J. (2016). Experimental evaluation of transfer length in pretensioned concrete beams using 2,400-MPa prestressed strands, Journal of Structural Engineering, 142(11), 04016088.
15 Meyer, K.F. (2002). Transfer and Development Length of 0.6-inch Diameter Prestressing Strand in High Strength Lightweight Concrete, Georgia Institute of Technology.
16 KS F 2730 (2018). Testing Method for Rebound Number to Conclude Compressive Strength of Concrete, KS Standard, Korea [in Korean].
17 Lee, Y.J., Kim, H.G., Kim, M.J., Kim, D.H., Kim, K.H. (2020). Evaluation of flexural performance for prestressed concrete hollow core slabs, Journal of the Korea Concrete Institute, 32(2), 193-200 [in Korean].   DOI
18 Marti-Vargas, J.R., Arbelaez, C.A., Serna, P., Navarro-Gregori, J., Pallares-Rubio, L. (2007). Anlaytical model for transfer length prediction of 13 mm prestressing strand, Structural Engineering and Mechanics: An International Journal, 26(2), 211-229.
19 Oh, B.H., Lim, S.N., Lee, M.K., Yoo, S.W. (2014). Analysis and prediction of transfer length in pretensioned, prestressed concrete members, ACI Structural Journal, 111(3), 549-560.   DOI
20 Oh, Y.H., Moon, J.H., Yoon, Y.J., Lee, J.S. (2021). Experimental study on a web shear design equation for composite precast concrete hollow core slabs, Journal of the Korea Concrete Institute, 33(5), 509-517 [in Korean].
21 Russell, B.W., Burns, N.H. (1997). Measurement of transfer lengths on pretensioned concrete elements, Journal of Structural Engineering, 123(5), 541-549.
22 Yang, J.M., Yim, H.J., Kim, J.K. (2015). Transfer length of 2,400 MPa PS strand in 15 m-long full-scale pretensioned prestressed concrete beam, Journal of the Korean Society of Hazard Mitigation, 15(5), 139-146 [in Korean].
23 Yang, J.M., Yim, H.J., Kim, J.K. (2016). Transfer length of 2400 MPa seven-wire 15.2 mm steel strands in high-strength pretensioned prestressed concrete beam, Smart Structures and Systems, 17(4), 577-591.   DOI
24 Oh, B.H., Kim, E.S. (2000). Influencing factors and evaluation of transfer lengths in pretensioned prestressed concrete members, KSCE Journal of Civil and Environmental Engineering Research, 20(6-A), 945-956 [in Korean].
25 Yim, H.J., Kim, J.K., Yang, J.M. (2015). Experimental study on the transfer length in pretensioned prestressed concrete beam using 2,400 MPa PS strand, Journal of the Korean Society of Hazard Mitigation, 15(2), 41-49.
26 Mitchell, D., Cook, W.D., Khan, A.A., Tham, T. (1993). Influence of high strength concrete on transfer and development length of pretensioning strand, PCI Journal, 38(3), 52-66.   DOI