By Michael D Kotsovos
This ebook offers a mode which simplifies and unifies the layout of bolstered concrete (RC) constructions and is acceptable to any structural aspect below either basic and seismic loading stipulations. The proposed procedure has a valid theoretical foundation and is expressed in a unified shape appropriate to all structural individuals, in addition to their connections. it truly is utilized in perform by utilizing uncomplicated failure standards derived from first ideas with no the necessity for calibration by using experimental information. the tactic is in a position to predicting not just load-carrying capability but in addition the destinations and modes of failure, in addition to safeguarding the structural functionality code requisites.
In this ebook, the options underlying the strategy are first offered for the case of easily supported RC beams. the appliance of the tactic is steadily prolonged which will hide all universal structural parts. for every structural aspect thought of, proof of the validity of the proposed technique is gifted including layout examples and comparisons with present code necessities. the tactic has been chanced on to supply layout ideas which fulfill the seismic functionality requisites of present codes in all situations investigated up to now, together with structural contributors comparable to beams, columns, and partitions, beam-to-beam or column-to-column connections, and beam-to-column joints.
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Extra resources for Compressive Force-Path Method: Unified Ultimate Limit-State Design of Concrete Structures
1, 41, 42] are considered to point towards the orientation that should be given to research efforts, if such efforts are to lead to a significant improvement of the codes of practice for RC design. 8 Concluding Remarks The concepts which form the basis of current codes of practice for the design of RC structures are in conflict with fundamental properties of concrete at both the material and the structure levels. This conflict is reflected on the premature brittle types of failure unexpectedly suffered by RC structures in situations of overload.
The beam comprises the following: (a) an uncracked portion consisting of the two end-regions of the beam which, extending to the (usually) inclined crack forming closest to the support and the cross-section through the tip of this crack, are connected by a narrow strip of varying depth forming between the upper face and the tips of flexural and inclined cracks which initiate at the bottom face and extend towards the upper face of the beam, (b) a cracked portion consisting of ‘plain-concrete cantilevers’ which, forming between successive flexural and inclined cracks, are fixed at the narrow zone of the uncracked portion, (c) the longitudinal reinforcement, penetrating the beam throughout its span at a relatively short distance from the tensile face, fully bonded to concrete at least in the region of the support where it is properly anchored.
Kotsovos MD (1987) Shear failure of RC beams: a reappraisal of current concepts. Jelic I, Pavlovic MN, Kotsovos MD (1999) A study of dowel action in reinforced concrete beams. Reinhardt HW, Walraven JC (1982) Cracks in concrete subject to shear. 5. ACI J. Proceedings 81(3):279–286. 5. ACI J. Proceedings 83(115):1026–1034. Kotsovos MD, Bobrowski J, Eibl J (1987) Behaviour of RC T-beams in shear. Kotsovos G (2005) Improving RC seismic design through the CFP method. In: Proceedings of the institution of civil engineers, structures and buildings, vol 158(SB5), pp 291–302.
Compressive Force-Path Method: Unified Ultimate Limit-State Design of Concrete Structures by Michael D Kotsovos