In the authors' first book Structural Concrete: Finite Element Analysis for Limit-State Design, a method based on formal finite-element modelling of structural concrete with realistic material properties was described. In this text, a simplified method is presented which needs calculations which are no more complex calculations that those required by the current (late-1990s) codes. It involves identifying the regions of a structural member or structure through which the external load is transmitted from its point of application to the supports and then strengthening these regions as required. As most of these regions enclose the trajectories of internal compression actions, the technique has been called the Compressive Force Path Method.52/4) 460 x 2 = 5.92 + 3.25 = 9.17 kN which, as indicated from the shear- force diagram of Fig. 4.43 ... f d) Portal frame with fixed ends Figure 4.44 shows the design details of a portal frame, designed in compliance with the proposed method.
|Title||:||Ultimate Limit-state Design of Concrete Structures|
|Author||:||M. D. Kotsovos, M. Pavlovic|
|Publisher||:||Thomas Telford - 1999|