Economic and environmental design optimisation of reinforced concrete frame buildings: A comparative study

Economic design optimization of RC road bridges under current conditions in Cuba

“…The correspondence between the BBO population, individuals (solutions), gens and fitness value. Hence, the number of species in each habitat is equal to the number of variables in the optimization problem [1,6]. The algorithm consists of the following steps: 1.…”

“…On the other hand, unlike the deck, the beams, although they work in bending, show a certain tendency to increase the quality of the concrete. This 1 The width and depth of the pier are calculated as a function of the depth of the columns, so they are dependent variables of the problem. Source: The Authors is due to the fact that, as mentioned above, these elements have large depths, so that the concrete compression block is much more significant than in the case of the deck, increasing the influence of the concrete quality on the flexural resistance of beams.…”

“…The designer proposes initial we add the fact that in developing regions there are no up-todate and reliable databases on the real costs (economic, environmental, etc.) of building materials and activities [1], obviously the design recommendations used by the designer are often not the right ones. That is why in recent years there has been a great thriving in a science named Structural Optimization, by means of which all the variables that affect the problem in question can be taken into account, providing much more rational solutions than those obtained by the traditional method.…”

“…In [4] a similar work is performed, additionally adding durability criteria, measured by the corrosion initiation time. Furthermore, Neural Networks are used to accelerate the convergence processes of these procedures, which are generally quite expensive [1,5,6]. In [7] the concept of Reliability-Based Design is also introduced in these problems.…”

Non-Iterative Optimal Design Method Based on LM Index for Steel Double-Beam Floor Systems Reinforced with Concrete Panels

“…Optimal design methods generally require time consuming iterative analyses to minimize objective functions [23][24][25]. In the case of a multi-objective problem [26][27][28][29] considering cost and environmental impacts, a more iterative analysis is required to derive an optimal design proposal that minimizes the objective function while satisfying structural safety. A genetic algorithm (GA) is a good tool to solve the multi-objective problem [30], and the analysis time can be greatly reduced through the improvement of the algorithm [31].…”