The Bond Strength on Over Lapping Bars Using Pullout Test

Anis Rosyidah, J. Adhijoso Tjondro, I Ketut Sucita

Abstract


The behavior of reinforced concrete structures depends on sufficient bond strength between concrete and reinforcing steel. The perfect bond between the reinforcement surface and the concrete makes the transfer force work well. In this experiment, several forms of bars overlapped in the concrete and then tested pullout directly. This experiment is to get the tendency of the bond stress patterns that occur in overlapping bars. Another result of the study is the failure pattern of each specimen. The specimen size is 150×150×150 mm. In the center of the concrete cube is rib two overlapped bars. The reinforcement used plain and two ribs types of bars surface. The compression of concrete used is a minimum of 25 MPa. Furthermore, the specimen was subjected to a pullout test loaded in stages with 22 kN/minute speed. Loading stopped after the sample has collapsed. The pullout test uses the ASTM C234-91a standard. The failure pattern of plain reinforcement specimens with diameters of 12 mm, 16 mm, and 19 mm is a pullout or a slipped. The specimen with deform bar diameter 13 mm, 16 mm, and 19 mm occurs in splitting failure. The pullout test result, all samples in connection not yielded yet. The results show that the higher the bar diameter's development length, the higher the bond strength. The bond stress of the plain bar is smaller than the deform bar.

Keywords


Bond stress; slip; tension test; failure pattern; lap splice.

Full Text:

PDF

References


M. Dehestani and S. S. Mousavi, “Modified steel bar model incorporating bond-slip effects for embedded element method,†Constr. Build. Mater. J., vol. 81, no. April, pp. 284–290, 2015.

G. Metelli, J. Cairns, and G. Plizzari, “The influence of percentage of bars lapped on performance of splices,†Mater. Struct., pp. 2983–2996, 2014.

J. Zuo and D. Darwin, “Splice strength of conventional and high relative rib area bars in normal and high-strength concrete,†ACI Struct. J., vol. 97, no. 4, pp. 630–641, 2000.

D. Ertzibengoa, S. Matthys, and L. Taerwe, “Bond behaviour of flat stainless steel rebars in concrete,†Mater. Struct., vol. 45, no. 11, pp. 1639–1653, 2012.

A. Rosyidah, I. K. Sucita, and F. Hidayat, “The Bond Strength of Glass Fiber Reinforced Polymer ( GFRP ) Reinforcement with Monolith Concrete,†IJASEIT, vol. 8, no. 2, pp. 495–500, 2018.

Q. Yu, J. Sun, Z. Xu, L. Li, Z. Zhang, and S. Yu, “Mechanical analysis of grouted sleeve lapping connector,†Appl. Sci., vol. 9, no. 22, Nov. 2019.

S.-C. Chun, “Lap Splice Tests Using High-Strength Headed Bars of 550 MPa (80 ksi) Yield Strength,†ACI Struct. J., vol. 112, no. 6, pp. 679–688, 2015.

D. Darwin, “Tension development length and lap splice design for reinforced concrete members,†Prog. Struct. Eng. Mater., vol. 7, no. 4, pp. 210–225, 2005.

E. Canbay and R. J. Frosch, “Bond strength of lap-spliced bars,†ACI Struct. J., vol. 102, no. 4, pp. 605–614, 2005.

E. Canbay and R. J. Frosch, “Design of lap-spliced bars: Is simplification possible?,†ACI Struct. J., vol. 103, no. 3, pp. 444–451, 2006.

T. K. Hassan, G. W. Lucier, and S. H. Rizkalla, “Splice strength of large diameter, high strength steel reinforcing bars,†Constr. Build. Mater., vol. 26, no. 1, pp. 216–225, 2012.

H. Hwang, “Local Bond Strength based Lap Splice Length Model of Reinforcing Bars,†in Advances in Civil, Structural and Mechanical Engineering, 2015, pp. 25–29.

H. J. Hwang, H. G. Park, and W. J. Yi, “Development length of standard hooked bar based on non-uniform bond stress distribution,†ACI Struct. J., vol. 114, no. 6, pp. 1637–1648, 2017.

J. Yuan and B. Graybeal, “Bond of reinforcement in ultra-high-performance concrete,†ACI Struct. J., vol. 112, no. 6, pp. 851–860, 2015.

G. Gaurav and B. Singh, “Bond strength prediction of tension lap splice for deformed steel bars in recycled aggregate concrete,†Mater. Struct. Constr., vol. 50, no. 5, pp. 1–23, 2017.

H. J. Hwang, H. G. Park, and W. J. Yi, “Nonuniform bond stress distribution model for evaluation of bar development length,†ACI Struct. J., vol. 114, no. 4, pp. 839–849, 2017.

ACI Committee 408, “ACI 408R-03 Bond and Development of Straight Reinforcing Bars in Tension,†in American Concrete Institute, 2003, pp. 1–49.

G. Xing, C. Zhou, T. Wu, and B. Liu, “Experimental study on bond behavior between Plain Reinforcing Bars and concrete,†Adv. Mater. Sci. Eng., vol. 18, no. 10, pp. 745–752, 2015.

X. Gao, N. Li, and X. Ren, “Analytic Solution for The Bond Stress-Slip Relationship Between Rebar and Concrete,†Constr. Build. Mater., vol. 197, pp. 385–397, 2019.

H. Shima, L. L. Chou, and H. Okamura, “Micro and macro models for bond in reinforced concrete,†Journal of the Faculty of Engineering, The Uinversity of Tokyo, vol. XXXIX, no. 2. pp. 133–194, 1987.

S. Hong and S. K. Park, “Uniaxial bond stress-slip relationship of reinforcing bars in concrete,†Adv. Mater. Sci. Eng., vol. 2012, no. April, 2012.

M. Teresa, G. Barbosa, E. De Souza, and S. Filho, “Analysis of the Relative Rib Area of Reinforcing Bars Pull Out Tests 4 . Experimental Results and Discussion,†Mater. Res., vol. 11, no. 4, pp. 453–457, 2008.

G. Metelli and G. A. Plizzari, “Influence of the relative rib area on bond behaviour,†Mag. Concr. Res., vol. 66, no. 6, pp. 277–294, 2014.

Sung-Chul Chun; Sung-Ho Lee; and Bohwan Oh, “Compression Splices in Confined Concrete of 40 and 60 MPa (5800 and 5700 psi) Compressive Strengths.,†ACI Struct. J., vol. 107, no. May-June, pp. 2010–2012, 2011.

D. A. Bournas and T. C. Triantafillou, “Bond Strength of Lap-Spliced Bars in Concrete Confined with Composite Jackets,†J. Compos. Constr., vol. 15, no. 2, pp. 156–167, 2011.

F. Lagier and J. Charron, “Behaviour of tension lap splice specimens in UHPRFC,†in 9th RILEM International Symposium on Fiber Reinforced Concrete - BEFIB 2016; 19-21 September 2016, Vancouver, Canada, 2016, no. October, pp. 75–89.

F. Lagier, B. Massicotte, and J. Charron, “Behaviour of Tension Lap Splice Specimens,†in 9th RILEM International Symposium on Fiber Reinforced Concrete, 2016, no. October, pp. 75–89.

G. Gaurav and B. Singh, “Bond strength prediction of tension lap splice for deformed steel bars in recycled aggregate concrete,†Mater. Struct. Constr., vol. 50, no. 10, 2017.

A. R. Gangolu, P. R. S., and E. Rolf, “Prediction of Analytical Bond Strength of Lap Splices in Tension,†in Proceedings of the 9th International Conference on Fracture Mechanics of Concrete and Concrete Structures, 2016, no. June.

Q. Yu, X. Xu, W. Yuan, Z. Xu, and X. Lu, “Experimental Study of Mechanical Properties of Grouted Sleeve Lapping Connector with Different Lap Lengths under Tensile Load,†Hunan Daxue Xuebao/Journal Hunan Univ. Nat. Sci., vol. 44, no. 9, pp. 82–91, Sep. 2017.

M. N. Hassan and L. R. Feldman, “Behavior of Lap-Spliced plain steel bars,†ACI Struct. J., vol. 109, no. 2, pp. 235–244, 2012.

C. Bosco and F. Tondolo, “Bond Performance in Machined Reinforcing Bar for Reinforced Concrete,†Appl. Mech. Mater., vol. 166–169, pp. 828–831, 2012.

L. C. P. S. Filho, V. Silva, V. I. D. Bosco, L. E. S. Gomes, M. P. Barbosa, and M. S. Lorrain, “Analysis of the influence of rebar geometry variations on bonding strength in the pullout test,†in Bond in Concrete 2012, 2012, no. June, pp. 63–68.

C. W. Tang, “Uniaxial bond stress-slip behavior of reinforcing bars embedded in lightweight aggregate concrete,†Struct. Eng. Mech., vol. 62, no. 5, pp. 651–661, 2017.

D. A. Bournas, T. C. Triantafillou, and M. Asce, “Bond Strength of Lap-Spliced Bars in Concrete Confined with Composite Jackets,†no. April, pp. 156–168, 2011.

F. Lagier, B. Massicotte, and J. Charron, “Experimental investigation of bond stress distribution and bond strength in uncon fi ned UHPFRC lap splices under direct tension,†Cem. Concr. Compos., vol. 74, pp. 26–38, 2016.




DOI: http://dx.doi.org/10.18517/ijaseit.11.2.8930

Refbacks

  • There are currently no refbacks.



Published by INSIGHT - Indonesian Society for Knowledge and Human Development