Due to climate change, the temperature monitoring of reinforced-concrete (RC) structures is becoming critical for preventive maintenance and extending their lifespan. Significant variations in RC elements can affect natural frequencies modulus elasticity or generate abnormal stress levels, potentially leading structural damage. Data from thermal systems are invaluable testing validating numerical methodologies estimating internal responses aiding prevention/maintenance decision making....

The study aims to enhance the bonding strength in reinforced concrete using a novel Auxetic Tubular Deformed Rebar (ATDR). A high-resolution non-linear finite element model was developed perform numerical analysis of pull-out tests (PoT). Two sets simulations were conducted: one replicate behavior under compression and tension tests, other for PoT, validated with experimental data. Numerical utilized microplane plasticity–damage, regularized by an implicit gradient. geometry involves adding...

Over the last decades, heuristic optimization methods based on imitating natural, biological, social or cultural processes a computational level have aroused interest of scientific community due to their ability effectively explore multimodal and multidimensional solution spaces. Despite all papers published in international literature, most algorithms still low precision accuracy. In this context, modified Simulated annealing algorithm (MSAA) is proposed validated for solving problems....

This work proposes the use of MSAA stochastic optimization technique to replace optimality criterion used in topology method proposed by Andreassen. To evaluate and validate performance we studied three plane elasticity problems reported literature. Each problem was analyzed with different finite element mesh types order compare results obtained terms topology, strain energy value average runtimes. It established that procedure involving MSAA, yields lower computational times more refined...

In civil engineering, structural optimization seeks an efficient use of material resources and the automatization design process a wide range structures such as frames, bridges, other systems. This work develops novel multiobjective topology to minimize planar trusses' weight strain energy. initial stage, optimized discrete geometry ground structure is generated from continuum space with general boundary conditions (loads supports) using stress trajectories theory. final size performed...

In the recent literature, a description of conditions under which an algorithm can be expected to successful or fail is not often included in studies. Because this, this work we compare performance, terms precision and stability, five heuristic algorithms order obtain valid statistical results. The problem instance have used do comparison optimal weight design set two dimensional steel frames. new Bacterial Foraging Optimization Algorithm (BFOA), Bees (BA), Particle Swarm (PSO),the Genetic...

El diseño de estructuras metálicas tipo cercha es un problema frecuente en la ingeniería civil, que requiere experiencia del ingeniero diseñador para lograr una solución estructural con buen desempeño y pueda satisfacer las necesidades establecidas. En los últimos años, el estos sistemas ha sido soportado mediante aplicación diversos métodos optimización, permiten obtener soluciones óptimas, dando cumplimiento a objetivos propuestos, forma automática menor tiempo trabajo. Esta investigación...

This paper presents a comparative study of an Optimal Sensor Placement (OSP) implementation conducted in box girder bridge using experimental and numerical mode shapes obtained at different construction stages. It is widely recognized that monitoring the dynamic response bridges during stages provides valuable information to adjust design considerations. Therefore, there need for development OSP implementations order find optimal number sensors needed real applications. In present study, OPS...

Nowadays the use of synthetic additives for mortar and concrete is widespread; on contrary, alternative plasticizers pore generators from plants or natural waste not common. In this work, effect addition fique juice mortars concretes was evaluated. The compression strength calculated, also their thermal conductivity, acoustic impedance. Furthermore, compressive (added with juice) evaluated under a fire condition. Mortars were manufactured several dosages ranging 3% to 9% by weight cement,...

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In this work is proposed a new Self‐Configured Hybrid Algorithm by combining the Particle Swarm Optimization (PSO) and Genetic (GA). The aim of strategy to increase stability accuracy search. central idea concept Guide Particle, particle (the best PSO global in each generation) transmits its information following generation, which controlled GA. Thus, hybrid has an elitism feature that improves performance guarantees convergence procedure. different test carried out benchmark functions,...