Mohamed Rougui

The prevalence of extensive glazed areas in contemporary buildings contributes significantly to solar radiation infiltration, elevating energy demands and causing discomfort for occupants. Window shading devices play a pivotal role in addressing this challenge. This paper presents the development and optimization of an artificial neural network (ANN) predictive model, designed to enable real-time control of slat angles by predicting total energy loads, specifically during summer (for cooling and lighting purposes). The refined model demonstrates high precision, achieving a normalized root mean square error (nRMSE) of approximately 1.72% and a correlation coefficient (R) of around 0.999, despite utilizing limited meteorological data. Key inputs for the model include solar radiation, solar altitude, and external temperature, with a particular focus on slat reflectivity. The study assesses the efficiency of three slat types based on their reflectivity: high (80%), medium (50%), and low (20%). Additionally, the research explores the impact of window-to-wall ratio (WWR) values on the control system's efficacy, revealing a positive correlation between higher WWR values and improved energy savings through ANN slat angle control. Furthermore, the study extends the applicability of the ANN model to the six thermal zones in Morocco, affirming its generalization across diverse environmental conditions.

In this work, we present a parametric study of a new administrative building, located in El-Ksar El Kebir region (Morocco). In order to have a building that complies with the RTCM in a technically and economically sound manner, we have carried out a number of interventions to insulate the components of the building, namely external walls, exposed roofs and openings. In this perspective, we have modelled the building envelope as a multi-zone building in TRNSYS and we have adopted an occupation scenario for this type of building. After determining the optimal insulation solutions, we simulated the administrative building in the five other thermal zones, to determine its feasibility in the latter.

This research aims to analyze the buckling behavior of multilayered rectangular plates reinforced by fibers. The critical buckling load is calculated for various boundary conditions and takes into account the geometric and design parameters of the plate to identify the best configuration of a particular composite and to achieve a greater buckling strength. The computation of the critical buckling load is obtained by analytical and a numerical finite element analysis using “SHELL181”ANSYS element. The field of displacements of the plate is shown for the two first modes (i = 1, 2) a comparison of the two results is considered and discussed. Copyright © 2015 Praise Worthy Prize - All rights reserved.

Nowadays, in the field of construction, taking into account the dynamic problems is required to secure the reliability of the structures in the different applications, particularly in the case of structures subjected to seismic loads. The objective of this study is the evaluation of seismic risk on the stability of the structure in the presence of soil-structure interaction. Indeed, this work provides the factors and the effect of the seismic vulnerability on the stability of structures of reinforced concrete building types, by determining the maximum displacements of the building, according to the damage indices and nonlinear dynamic case, while considering the various mechanical parameters of the soil and the studied structure. Aujourd’hui, dans le domaine de la construction, la prise en compte des problèmes dynamiques est nécessaire pour garantir la fiabilité des structures dans les différentes applications, notamment dans le cas des structures soumises aux sollicitations sismiques. L’objectif de la présente étude est l’évaluation du risque sismique sur la stabilité de la structure en présence de l’interaction sol-structure. En effet, ce travail prévoit les facteurs et l’effet de la vulnérabilité sismique sur la stabilité de la structure de type bâtiment en béton armé, par la détermination des déplacements maximaux du bâtiment, en fonction des indices d’endommagement en cas dynamique et non linéaire, tout en tenant compte des différents paramètres mécaniques du sol et de la structure étudiée.