The Micro Truss Model: An Innovative Rational Design Approach for Reinforced Concrete
Source abstract
Abstract
The strut and tie models have been widely used as an effective tool for designing reinforced concrete structures. The concrete is considered to carry only compressive forces through, while the tension forces are carried by reinforcing steel. The strut and tie model is effective for designing disturbed regions, however, it is essential that the designer should have a minimum level of experience to assume optimum trusses. In this study, a generalization of the strut and tie model is introduced through the micro truss model, in which, small isotropic truss members are used and the macro strut and tie model are automatically obtained. Both material and geometrical nonlinearity are introduced. The proposed model can be used for both design and checking the nonlinear response of reinforced concrete structures. The model has been verified through published experimental results. Rational steps of design have been incorporated and examples of design have been illustrated.
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Research context
OpenAlex topics: Structural Behavior of Reinforced Concrete · Structural Response to Dynamic Loads · Structural Engineering and Vibration Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Structural Engineering. Dept., Cairo University, Giza
References (19)
Show source-provided references
1. Ashour, A. F. (1997). “Tests of reinforced concrete continuous deep beams.” ACI Structural Journal, 94 (1), 3-12.
2. Bazant, Z. P. and Oh, B. J. (1983). “Crack band theory for fracture of concrete.” Materials and Structures (RILEM, Paris), 16, 155-157.
3. Collins, M., P. and Mitchell, D. (1986). “A rational approach for shear design- The 1984 Canadian code provisions.” ACI Journal, 83 (6), 925-933.
4. Herrmann, H. J. (1991). “Patterns and scaling in fracture.” in Fracture Processes in Concrete Rock and Ceramics (eds. Van Mier, J. G. M., Rots, J. G. & Bakker, A.), Chapman & Hall/E & FN Spon, London, 195-211.
5. Hoogenboom P. C. J. (1998). “Discrete elements and nonlinearity in design of structural concrete walls.” Ph.D. Dissertation, Delft University of Technology.
6. Hrennikoff, A. (1941). “Solutions of problems of elasticity by the framework method.” Journal of Applied Mechanics, 12, 169-175.10.1115/1.4009129 ↗
7. Kupfer, H. (1964). “Expansion of Morsch's truss analogy by application of the principle of minimum strain energy.” CEB bulletin no.40.
8. Leonhardt, F. (1965). “Reducing the shear reinforcement in reinforced concrete beams and slabs.” Magazine of Concrete Research, 17 (53), 187-19410.1680/macr.1965.17.53.187 ↗
9. MacGregor, J. G. (1992). “Reinforced concrete -mechanics and design.” Prentice-Hall International, Inc.
10. Ritter, W. (1899). “Die Bauweise Hennibique.” Schweizerishe Bauzeitung, Zurich.
11. Maekawa, K. and Okamura, H. (1983). “The Deformational Behavior and Constitutive Equation of Concrete Using the Elasto-Plastic and Fracture Model.” Journal of the Faculty of Engineering, The University of Tokyo (B), 37 (2), 253-328.
12. Marti, P. (1985). “Basic Tools of Reinforced Concrete Beam Design.” ACI Journal, 83 (1), 36-42.
13. Morsch, E. “Der Eisenbetonbau, seine Anwendung und Theorie.” 1st ed., Wayss and Freytag, A. G., Im Selbstverlag der Firma, Neustadt a. d. Haardt, May 1902, 118 pp.; “Der Eisenbetonbau, seine Theorie und Anwendung.” 2nd ed., Verlag von Konard Wittmer, Stuttgart, 1906, 252 pp.; 3rd ed. translated into English by E. P. Goodrich, McGraw Hill Book Co., New York, 368 pp, 1909.
14. Niwa, J., Choi, K. and Tanabe, T. (1995). “Analytical study for shear resisting mechanism using lattice model.” Concrete Library of JSCE, (26), 95-109.
15. Okamura, H. and Maekawa, K. (1991). “Nonlinear Analysis and Constitutive Models of Reinforced Concrete.” Gihodo, Tokyo.
16. Schlaich, J., Shafar, K. and Jennewin, K. (1987). “Toward a Consistent Design of Structural Concrete.” PCI Journal, 32 (3) 72-150.
17. Shin, H. M. (1988). “Finite element analysis of reinforced concrete members subjected to reversed cyclic in-plane loading.” Doctor dissertation, Tokyo University.
18. Uchida, Y., Rokugo, K. and Koyanagi, W. (1991). “Determination of tension softening diagrams of concrete by means of bending tests.” Proceedings of JSCE, 14 (426), 203-212.
19. Vervuurt, A. and Van Mier, G. (1993). “A Lattice Approach for Analyzing Steel-to-Concrete Bond-Slip-Layer Fracture.” ACI SP-156, Interface Fracture and Bond (eds. Buyukozoturk, O. and Wecharatana, M.), 85-106.