A Heuristic Approach to Identify the Steel Grid Direction of R/C Slabs Using the Yield-Line Method for Analysis

Figure 6

Effect of the penalty function coupled to the sequential simplex method when using the yield-line method for analysis of a trapezoidal R/C slab. (a) Constrained solution. The pseudo-objective function value is with P(x) = 0. (b) Unconstrained solution kinematically inadmissible. The pseudo-objective function value after incrementing the parameter values of one degree and .