Time-Dependent Capacity of Large Scale Deep Beams under Sus-tained Loads
Source abstract
Abstract
The aim of this study is to investigate the effect of sustained loads on the capacity of large-scale deep beams as a part of underground reinforced concrete, and to conduct parametric studies by numerical methods. The reduced shear ca-pacity under long-term sustained loads is investigated to be associated with the mode of failure, and the higher time-dependency is numerically suggested for deep-beams irrespective of their gain in the short-term static capacity. The main source of the possible decay of shear capacity is analyzed to originate from the creep damage of diagonal compression strut over the web concrete, and a simple expression of the strut-tie analogy is extended to the creep shear rupture of deep beams. Finally, it is concluded that the design safety factor of 1.2~1.3 for shear is appropriate for avoiding the risk of creep failure against long-term sustained loads of about 100 years.
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Research context
OpenAlex topics: Structural Response to Dynamic Loads · Structural Behavior of Reinforced Concrete · Structural Load-Bearing Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Civil Engineering, The University of Tokyo, Japan.
References (41)
Show source-provided references
1. 1) Alca, N., Alexander, S. D. B. and MacGregor, J. G., (1997). “Effect of size on flexural behavior of high-strength concrete beams.” ACI Structural Journal, 94(1), 59-67.
2. 2) An, X., Maekawa, K. and Okamura, H., (1997). “Numerical simulation of size effect in shear strength of RC beams.” Journal of JSCE, (564), 297-316.10.2208/jscej.1997.564_297 ↗
3. 3) Arabzadeh, A., Rahaie, A. R. and Aghayari, R., (2009). “A simple strut-and-tie model for prediction of ultimate shear strength of RC deep beams.” International Journal of Civil Engineering, 7(3), 141-153.
4. 4) Asamoto, S., Ishida, T. and Maekawa, K., (2006). “Time-dependent constitutive model of solidifying concrete based on thermodynamic state of moisture in fine pores.” Journal of Advanced Concrete Technology, 4(2), 301-323.10.3151/jact.4.301 ↗
5. 5) Bazant, Z. P. and Ong, J. S., (1983). “Creep in continuous beam built span-by-span.” Journal of Structural Engineering, ASCE, 109(7), 1646-1668.
6. 6) Chijiwa, N, Zhu, X., Ohno, H., Tanabe, S., Nakarai, K. and Maekawa, K., (2015). “Delayed shear crack formation of shallow RC box culverts in service.” CONCREEP 10, 1579-1586.10.1061/9780784479346.184 ↗
7. 7) Chong, K. T., Gilbert, R. I. and Foster, S. J., (2004). “Modelling time-dependent cracking in reinforced concrete using bond-slip interface elements.” Computers and Concrete, 1(2), 151-168.10.12989/cac.2004.1.2.151 ↗
8. 8) Collins, M. P., Bentz, E. C., Quach, P. T. and Proestos, G. T., (2015). “The challenge of predicting the shear strength of very thick slabs results support recommendation to use at least minimum shear reinforcement.” Concrete International, ACI, 37(11), 29-37.
9. 9) Collins, M. P. and Mitchell, D., (1986). “Rational approach to shear design -The 1984 Canadian Code Provisions.” Journal Proceedings, ACI, 83(6), 925-933.
10. 10) El-Kashif, K. F. and Maekawa, K., (2004). “Time-dependent post-peak softening of RC members in flexure.” Journal of Advanced Concrete Technology, 2(3), 301-315.10.3151/jact.2.301 ↗
11. 11) Gebreyouhannes, E. and Maekawa, K., (2016). “Nonlinear gel migration in cracked concrete and broken symmetry of corrosion profiles.” Journal of Advanced Concrete Technology, 14(6), 271-286.10.3151/jact.14.271 ↗
12. 12) Japan Society of Civil Engineers, (2012). “Standard specifications for concrete structures.”
13. 13) Higgins, L., Forth, J. P., Neville, A., Jones, R. and Hodgson, T., (2013). “Behaviour of cracked reinforced concrete beams under repeated and sustained load types.” Engineering Structures, 56, 457-465.10.1016/j.engstruct.2013.05.034 ↗
14. 14) Jansen, D. C. and Shah, S. P., (1997). “Effect of length on compressive strain softening of concrete.” Journal of Engineering Mechanics, ASCE, 123(1), 25-35.10.1061/(ASCE)0733-9399(1997)123:1(25) ↗
15. 15) Jansen, D. C., Shah, S. P. and Rossow, E. C., (1995). “Stress-strain results of concrete from circumferential strain feedback control testing.” Materials Journal, 92(4), 419-428.
16. 16) Kani, G. N. J., (1967). “How safe are our large reinforced concrete beams?” Journal Proceedings, 64(3), ACI, 128-141.
17. 17) Kasper, E. P. and Taylor, R. L., (2000). “A mixed-enhanced strain method: Part II: Geometrically nonlinear problems.” Computers & Structures, 75(3), 251-260.10.1016/S0045-7949(99)00135-2 ↗
18. 18) Mabrouk, R., Ishida, T. and Maekawa, K., (2004). “A unified solidification model of hardening concrete composite for predicting the young age behavior of concrete.” Cement and Concrete Composites, 26(5), 453-461.10.1016/S0958-9465(03)00073-8 ↗
19. 19) Maekawa, K., Toongoenthong, K., Gebreyouhannes, E. and Kishi, K., (2006). “Direct path-integral scheme for fatigue simulation of reinforced concrete in shear.” Journal of Advanced Concrete Technology, 4(1), 159-177.10.3151/jact.4.159 ↗
20. 20) Maekawa, K., Ishida, T. and Kishi, T., (2008). “Multi-Scale Modeling of Structural Concrete.” CRC Press.10.1201/9781482288599 ↗
21. 21) Maekawa, K., Zhu, X., Chijiwa, N. and Tanabe, S., (2016). “Mechanism of long-term excessive deformation and delayed shear failure of underground RC box culverts.” Journal of Advanced Concrete Technology, 14(5), 183-204.10.3151/jact.14.183 ↗
22. 22) Mörsch, E., (1909). “Concrete Steel Construction (Der Eisenbetonbau). English Translation of the 3rd German Edition.” McGraw-Hill Book Co., New York.
23. 23) Mörsch, E. and Goodrich, E. P., (1910). Concrete-steel construction:(Der Eisenbetonbau). Engineering News Publishing Company.
24. 24) Mozer, J. D., Gerstle, K. H. and Tulin, L. G., (1970). “Time-dependent behavior of concrete beams.” Journal of the Structural Division, ASCE, 96(ST3), 597-612.10.1061/JSDEAG.0002532 ↗
25. 25) Nojiri, Y., Iguro, M., Shioya, T. and Akiyama, H., (1985). “Experimental studies on shear strength of large reinforced concrete beams under uniformly distributed load.” Concrete Library International, 5, Japan Society of Civil Engineers.
26. 26) Okamura, H. and Higai, T., (1980). “Proposed design equation for shear strength of reinforced concrete beams without web reinforcement.” Proceedings of the Japan Society of Civil Engineers, 131-141. Japan Society of Civil Engineers.10.2208/jscej1969.1980.300_131 ↗
27. 27) Ritter, W., (1899). “Die bauweise hennebique (hennebiques construction method).” Schweizerische Bauzeitung (Zurich), 33(7), 59-61.
28. 28) Rusch, H., (1960). “Researches toward a general flexural theory for structural concrete.” Journal of ACI, 57(7), 1-27.
29. 29) Safiullah, H. A., Nakarai, K., Piseth, V., Chijiwa, N. and Maekawa, K., (2016). “Effect of loading conditions on shear creep failure of RC beams.” In: 11th Fib International PhD Symposium in Civil Engineering, Tokyo,125-132.
30. 30) Sarkhosh, R., Walraven, J. C. and den Uijl, J. A., (2013). “Time-dependent behavior of cracked concrete beams under sustained loading.” In: FraMCoS-8.
31. 31) Sarkhosh, R., (2014). “Shear resistance of reinforced concrete beams without shear reinforcement under sustained loading.” Thesis (PhD), Delft University of Technology, ISBN 9789461086457.
32. 32) Sarkhosh, R., Walraven, J., den Uijl, J. and Braam, R., (2013). “Shear capacity of concrete beams under sustained loading.” In: IABSE Symposium Report, International Association for Bridge and Structural Engineering, 99, 1-8.10.2749/222137813806474264 ↗
33. 33) Schlaich, J., Schäfer, K. and Jennewein, M., (1987). “Toward a consistent design of structural concrete.” PCI Journal, 32(3), 74-150.10.15554/pcij.05011987.74.150 ↗
34. 34) Swamy, R. N. and Queshi, S. A., (1971). “Strength, cracking and deformation similitude in reinforced T-beams under bending and shear.” Journal Proceedings, ACI, 68(3), 187-195.
35. 35) Tan, K. H. and Cheng, G. H., (2006). “Size effect on shear strength of deep beams: Investigating with strut-and-tie model.” Journal of Structural Engineering, ASCE, 132(5).10.1061/(ASCE)0733-9445(2006)132:5(673) ↗
36. 36) Tasevski, D., Ruiz, M., F. and Muttoni, A., (2016). “Behaviour of concrete in compression and shear under varying strain rates: from rapid to long-term actions.” In: 11th Fib International PhD Symposium in Civil Engineering , Tokyo, 881-886.
37. 37) Taylor, H. P., (1972). “Shear stength of large beams.” Journal of the Structural Division, 98, 2473-2490.10.1061/JSDEAG.0003376 ↗
38. 38) Taylor, R. L., Beresford, P. J. and Wilson, E. L., (1976). “A non-conforming element for stress analysis.” International Journal for numerical methods in Engineering, 10, 1211-1219.10.1002/nme.1620100602 ↗
39. 39) Vecchio, F. J. and Collins, M. P., (1986). “The modified compression-field theory for reinforced concrete elements subjected to shear.” ACI Journal, 83(2), 219-231.
40. 40) Walraven, J. C., (2007). “Fracture mechanics of concrete and its role in explaining structural behaviour.” FraMCos-7 Jeju.
41. 41) Zhang, N. and Tan, Kang-Hai., (2007). “Size effect in RC deep beams: Experimental investigation and STM verification.” Engineering Structures, 29(12), 3241-3254.10.1016/j.engstruct.2007.10.005 ↗