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18th Iberian Conference on Information Systems and Technologies, CISTI 2023

作者： Noda, Lumy Leao, Celina Pinto Leder, Solange Federal University of Paraíba Post-graduate Program in Architecture and Urbanism - Ppgau João Pessoa Brazil School of Engineering of University of Minho Algoritmi Research Centre/LASI Guimarães Portugal Federal University of Paraíba Department of Architecture and Urbanism João Pessoa Brazil

ISBN: (纸本)9789893347928

Thermal comfort can be defined as the 'condition of mind that expresses satisfaction with the thermal environment.', and adaptive control measures comprise an adjustment to indoor environmental conditions based on occupant preferences, behavior, and feedback. The use of Artificial Intelligence (AI) and Internet of Things (IoT) in thermal comfort and adaptive control measures has the potential to significantly improve energy efficiency and occupant comfort in buildings. The adoption of the Working-from-home modality by several institutions and companies during and after the 2020 pandemic, accelerated the development of even more advanced and effective solutions in this area. This study, in its first phase, seeks to identify input parameters related to adaptive control measures adopted by the same occupants in two work environments (office building and residences) to promote personal thermal comfort contributing to the development of individual devices and IoT applications related to thermal comfort monitoring. © 2023 ITMA.

关键词： Internet of things

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Influence of Vegetation on the Climate

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Journal of Environmental Protection 2023年第9期14卷 725-741页

作者： Adriana Schueler Thallison Rodrigues Oliveira Department of Architecture and Urbanism and Post Graduate Program in Territorial Development and Public Policies Universidade Federal Rural do Rio de Janeiro Seropédica Brasil Post Graduate Program PROFÁGUA Universidade Federal do Paraná Campo Mourão Curitiba-PR Brasil

With the growth of the cities, the environment ended up being altered and, among others, the natural cover and native vegetation were replaced by a built environment, which contributed to deep environmental disturbances. One of them, climate change, has attracted attention in recent decades, and can no longer be ignored without greatly compromising the quality of life of human beings. From the scenario in which we are inserted, it became necessary to investigate which factors significantly influence climate change in urban centers. The Federal Rural University of Rio de Janeiro was the center of this study. From this scenario, the influence of green and wooded areas on urban thermal behavior was analyzed. In this sense, three types of soil surface exposure were studied experimentally during four periods of the year.

关键词： Climate Urban Forestry Heat on Surfaces Seropédica

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GIS-Based Methodology for Crash Prediction on Single-Lane Rural Highways

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Journal of Geographic Information System 2021年第2期13卷 98-121页

作者： Márcia Macedo Emilia Kohlman Rabbani Maria Maia Marlos Macedo Bianca Ferreira Post-Graduate Program in Civil Engineering UPE Recife Brazil Post-Graduate Program in Systems Engineering UPE Recife Brazil Graduate Program in Architecture and Urban Planning UNICAP Recife Brazil

Due to the need to update the current guidelines for highway design to focus on safety, this study sought to build an accident prediction model using a Geographic Information System (GIS) for single-lane rural highways, with a minimum of statistically significant variables, adequate to the Brazilian reality, and improve accident prediction for places with similar characteristics. A database was created to associate the accident records with the geometric parameters of the highway and to fill in the gaps left by the absence of geometric highway plans through geometric reconstitution or semi-automatic extraction of highways using satellite images. The Generalized Estimating Equation (GEE) method was applied to estimate the coefficients of the model, assuming negative distribution of the binomial error for the count of observed accidents. The accident frequency and annual average daily traffic (AADT) were analyzed, along with the spatial and geometric characteristics of 215 km of federal single-lane rural highways between 2007 and 2016. The GEE procedure was applied to two models having three variations of distinct homogeneous segmentation, two based on segments and one based on the kernel density estimator. To assess the effect of constant traffic, two more variations of the models using AADT as an offset variable were considered. The predominant correlation structure in the models was the exchangeable. The principal contributing factors for the occurrence of collisions were the radius of the horizontal curve, the grade, segment length, and the AADT. The study produced clear indicators for the design parameters of roadways that influence the safety performance of rural highways.

关键词： Roads GEE Single-Lane Rural Highways GIS Crash Prediction

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Coloured Concrete Produced from Low-Carbon Cements: Mechanical Properties, Chromatic Stability and Sustainability

SSRN

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SSRN 2022年

作者： Jesus, Christianne F. Arruda, Euler S. Braga, Nállyton Sales T. Silva, João A. Barata, Márcio Santos Post-Graduate Program in Architecture and Urbanism Federal University of Pará Pará Belém Brazil Post-Graduate Program in Risk Management and Natural Disaster in Amazon Federal University of Pará Pará Belém Brazil

The global construction industry is responsible for 39% of CO2 emissions and for more than 50% of the extracted natural resources. Dematerialization and the use of low-carbon materials would be mitigating actions in the current scenario. In developing countries, where the housing deficit is high, a short-term solution could come from the construction of social housing using multipurpose coloured concrete casings, which have no rendering of mortars and paints and are produced from low-carbon cements. In the Amazon, the wide availability of light and kaolinite-rich waste would enable the production of low-carbon cements (LCC) from ternary mixtures of clinker, calcined kaolin waste and limestone. This study evaluated the performance of coloured concretes from these LCC against the weathering of the rainy equatorial climate of the Amazon. The LCC provided coloured concretes with good pigmentation capacity and a significant reduction in CO2 emissions. On the other hand, the use of such cement compromised the aesthetic quality of the envelope due to the low chromatic stability. The low alkalinity of the LCC favoured the growth of microorganisms, leading the concrete surfaces to become prematurely blackened, decreasing their albedo and, consequently, raising the surface temperature of the substrate, which compromises the thermos-energetic performance of the building. Nevertheless, the results are promising and justify the continuity of research using new compositions of limestone calcined clay cement associated with the use of more efficient surface protection systems. © 2022, The Authors. All rights reserved.

关键词： Limestone

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Analysis of the Impact of Photovoltaic Glasses in Daylighting and Thermoenergetic Performances in an Office Room

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Journal of Civil Engineering and architecture 2021年第2期15卷 88-102页

作者： Ludimila Mallmann Schmalfuss Roseana Bonotto Ruivo Celina Maria Britto Correa Isabel Torinho Salamoni Eduardo Grala da Cunha Post-Graduate Program in Architecture and Urbanism Federal University of PelotasPelotasRS 96010-610Brazil

Contemporary office buildings have been calling attention for intense use of glass on their faç*** way,glazed areas in such buildings may favor the access to natural light and contribute to power generation through photovoltaic ***,the application of STPV(Semi-Transparent Photovoltaic)may interfere with the building’s energy performance and good use of ***,this work aims to assess daylighting and thermoenergetic performances in an office room located in southern Brazil,with different types of STPV applied to the building’s *** study was carried out through computer simulation,integrating software’s Rhinoceros with DIVA plugin and *** have shown that the application of STPV with proper transparency percentage provides access to daylighting and increases visual comfort for occupants,and also contributes to the building’s energy balance,as it may save from 9.6%to 28%in *** use,in the climatic context analyzed,has boosted energy consumption for cooling and for artificial lighting;however,photovoltaic generation was higher and thus compensated for the increase caused by the system.

关键词： Energy efficiency STPV façades computer simulation lighting performance thermoenergetic performance

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Adaptive control measures and thermal comfort : Input parameters for IoT devices

Adaptive control measures and thermal comfort : Input parame...

引用

Iberian Conference on Information Systems and Technologies (CISTI)

作者： Lumy Noda Celina Pinto Leão Solange Leder Post-graduate Program in Architecture and Urbanism - PPGAU Federal University of Paraíba João Pessoa Brazil Algoritmi Research Centre/LASI School of Engineering of University of Minho Guimarães Portugal Department of Architecture and Urbanism Federal University of Paraíba João Pessoa Brazil

Thermal comfort can be defined as the ‘condition of mind that expresses satisfaction with the thermal environment.’, and adaptive control measures comprise an adjustment to indoor environmental conditions based on occupant preferences, behavior, and feedback. The use of Artificial Intelligence (AI) and Internet of Things (IoT) in thermal comfort and adaptive control measures has the potential to significantly improve energy efficiency and occupant comfort in buildings. The adoption of the Working-from-home modality by several institutions and companies during and after the 2020 pandemic, accelerated the development of even more advanced and effective solutions in this area. This study, in its first phase, seeks to identify input parameters related to adaptive control measures adopted by the same occupants in two work environments (office building and residences) to promote personal thermal comfort contributing to the development of individual devices and IoT applications related to thermal comfort monitoring.

关键词：

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Relentless Resilience

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Journal of Civil Engineering and architecture 2021年第1期15卷 47-56页

作者： Lineu Castello PROPAR/UFRGS Post Graduate Program in ArchitectureFederal University of Rio Grande do SulPorto Alegre90040-060Brazil

The paper observes that one of the most significant changes experienced by global cities in their growth is that(fortunately)they keep a Relentless Resilience of some of their urban *** are clearly perceived as configuring territorial fragmentations,either in extra-or intra-urban location,caused by the obsolescence of uses non-aligned to contemporary life;and territorial discontinuities interspersed along the *** is precisely in these fragments that good opportunities for the smart growth of a global city can be *** represent a trend towards a curtailment of the undesired sprawl and the creation of new places that will somehow act as“gluing”the ***,one of the most striking features of contemporary cities has been the strong tendency to value their old memories through redeveloping their heritage *** newest trend is to reuse them under the generical denomination of“Cultural and Creative Parks”,in line with the ideas of the“creative economy”and the revitalization of brownfields.

关键词： Contemporary cities places resilience creative parks anthropocene

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Study of Machine Learning Techniques for Damage Identification in a Beam 10th

Study of Machine Learning Techniques for Damage Identifica...

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10th International Conference on Wave Mechanics and Vibrations, WMVC 2022

作者： da Silva Coelho, Jefferson de Sousa, Amanda Aryda Silva Rodrigues Machado, Marcela Rodrigues Dutkiewicz, Maciej Department of Mechanical Engineering University of Brasília Campus Universitário Darcy Ribeiro Faculdade de Tecnologia - Asa Norte DF Brasília Brazil Post-Graduate Program - Integrity of Engineering Materials University of Brasília Campus Universitário Darcy Ribeiro Faculdade de Tecnologia - Asa Norte DF Brasília70910-900 Brazil Faculty of Civil Environmental Engineering and Architecture University of Science and Technology Bydgoszcz85-796 Poland

ISBN: (纸本)9783031157578

Damage is defined as any change to the material, geometry or boundary condition that can modify the structure’s properties or response. In the past, damage identification was performed through periodical inspection, non-destructive testing/non-destructive evaluation, or visual observation. Structural health monitoring (SHM) has emerged to transition from offline damage identification to near real-time and online damage assessment. Hence, SHM is a damage detection strategy to monitor a structure for a period using a series of continuous measurement devices, which then collect the system’s characteristics and subsequently perform statistical analysis to assess the current circumstances and health of the structure. One of the first steps for the study of SHM is damage detection followed by monitoring. Machine Learning (ML) techniques can be used to develop viable algorithms to make potential predictions. ML algorithms are therefore providing the tools needed to enhance the capabilities of SHM systems and provide intelligent solutions to past challenges. Preliminary studies have reviewed that the extension of ML into SHM has dramatically increased the system’s capabilities, providing innovative solutions to different research challenges. This work conducts a study of the use of ML to identify damage in a beam and discuss the challenge of usage, performance and implementation of each technique. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Decision trees

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Numerical analysis of the influence of the contact boundary condition and specimen geometry on concrete compressive strength

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Procedia Structural Integrity 2023年 47卷 261-267页

作者： Caroline Bremm Luísa Inda Leandro Ferreira Friedrich Sabrina Vantadori Ignacio Iturrioz Luis Kosteski Engineering Post Graduation Program Federal University of Pampa Av. Tiaraju 810 Alegrete 97546-550 Brazil Civil Engineering Graduate Program Federal University of Pampa Av. Tiaraju 810 Alegrete 97546-550 Brazil Program of Mechanical Pos-Graduation Federal University of Rio Grande do Sul Sarmento Leite 425 Porto Alegre 90040-060 Brazil Department of Engineering & Architecture University of Parma Parco Area delle Scienze 181/A 43124 Parma Italy

In the present paper, the influence of the contact boundary condition and specimen geometry on the concrete compressive strength is numerically investigated by using a version of the Lattice Discrete Element Method (LDEM), implemented on Abaqus/Explicit. More precisely, two types of contact boundary conditions are considered and, for each of them, three different slenderness levels (height/width ratio - h/b) are analyzed (that is, h/b = 0.5, 1.0, and 2.0) by considering a square cross-section. Moreover, for h/b = 2.0, a circular cross-section is also examined. Two models are developed: one by using the LDEM and the other by using a hybrid model, combining Finite Elements and LDEs. The results show that both the boundary conditions and the sample geometry influence the axial compressive strength.

关键词： Abaqus concrete compressive strength Lattice Discrete Element Method (LDEM)

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A Novel Non-Linear Peridynamic Model for Quasi-Brittle Materials Under Cyclic Loading

SSRN

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SSRN 2024年

作者： Friedrich, Leandro F. Colpo, Angélica B. Iturrioz, Ignacio Zanichelli, Andrea Vantadori, Sabrina Departament of Mechanical Engineering Federal University of Pampa Av. Tiaraju 810 AlegreteCEP 97546-550 Brazil Mechanical Post-Graduate Program Federal University of Rio Grande do Sul Sarmento Leite 425 Porto AlegreCEP 90050-170 Brazil Department of Engineering & Architecture University of Parma Parco Area delle Scienze 181/A Parma43124 Italy

In the present paper, a novel non-linear peridynamic (PD) model is proposed to numerically simulate the fatigue behaviour of quasi-brittle materials. The model implements a non-linear degradation law for the bonds, function of the number of loading cycles. More precisely, a calibration function and a calibration parameter are included in such a law. The novel PD model is applied to simulate cyclic three-point bending experimental tests performed on concrete notched beams, and available in the literature. The results are presented in terms of fatigue lifetime, Paris law parameters and crack path. © 2024, The Authors. All rights reserved.

关键词： Bending tests

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