cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.20026787
title: An integrated production and quality control model supported by mobile computing

description: Abstract A number of studies have pointed out that making-do is a frequent type of waste in the construction industry and is the root cause of other wastes, such as accidents, quality failures, rework and work in progress. Making-do waste refers to a situation in which a task starts or continues without having available all the inputs required for its completion. There are evidences that making-do waste is strongly related to unfinished work and the execution of informal work packages. The literature suggests that the integration between production and quality control is a means for reducing the incidence of informal packages and, consequently, making-do. The use of mobile devices in construction sites is considered an efficient alternative to collect and manage information, providing opportunities to innovate in production control. The aim of this study is to devise a production and quality control model, linked to the Last Planner System, using the support of mobile computing. An empirical study was conducted in two low-cost housing projects, in which the proposed model was evaluated. The implementation of the model allowed the collection of data related to work package completions, execution of informal packages, unfinished work, making-do wastes and quality checks.
DOI: 10.6084/m9.figshare.20026787.v1
title: An integrated production and quality control model supported by mobile computing

description: Abstract A number of studies have pointed out that making-do is a frequent type of waste in the construction industry and is the root cause of other wastes, such as accidents, quality failures, rework and work in progress. Making-do waste refers to a situation in which a task starts or continues without having available all the inputs required for its completion. There are evidences that making-do waste is strongly related to unfinished work and the execution of informal work packages. The literature suggests that the integration between production and quality control is a means for reducing the incidence of informal packages and, consequently, making-do. The use of mobile devices in construction sites is considered an efficient alternative to collect and manage information, providing opportunities to innovate in production control. The aim of this study is to devise a production and quality control model, linked to the Last Planner System, using the support of mobile computing. An empirical study was conducted in two low-cost housing projects, in which the proposed model was evaluated. The implementation of the model allowed the collection of data related to work package completions, execution of informal packages, unfinished work, making-do wastes and quality checks.
DOI: 10.6084/m9.figshare.20026789
title: Methodology and validation of performance-based structural design applied to the conception of a lattice wind tower

description: Abstract This paper presents a study based on the performance design process by using parametric and algorithmic models development. This study integrates the structural analysis and the design to generate complex geometric structures, based on manufacture and assembly parameters. The used methodology is based on the Performative Model, in which the structure shape is generated using performance criteria. In this perspective, the complex structures development is only possible by reverting de shape conception process, in which its generation is linked to the geometric, material and load parameters. Therefore, the structural engineer not only participates in the evaluation phase, but also in the early stages, creating an exploration and production process of common knowledge among architects and engineers. For the purpose of investigating this approach, this work presents the design of a conceptual lattice wind tower.
DOI: 10.6084/m9.figshare.20026789.v1
title: Methodology and validation of performance-based structural design applied to the conception of a lattice wind tower

description: Abstract This paper presents a study based on the performance design process by using parametric and algorithmic models development. This study integrates the structural analysis and the design to generate complex geometric structures, based on manufacture and assembly parameters. The used methodology is based on the Performative Model, in which the structure shape is generated using performance criteria. In this perspective, the complex structures development is only possible by reverting de shape conception process, in which its generation is linked to the geometric, material and load parameters. Therefore, the structural engineer not only participates in the evaluation phase, but also in the early stages, creating an exploration and production process of common knowledge among architects and engineers. For the purpose of investigating this approach, this work presents the design of a conceptual lattice wind tower.
DOI: 10.6084/m9.figshare.20026790
title: Potential and evaluation of a PPGIS application about the Guaíba's waterfront in Porto Alegre

description: Abstract The purpose of this study is to test, in the Brazilian context, the potential of Public Participation Geographic Information Systems (PPSIG) to identify participants' perceptions as to the preferences, future uses, accessibility and improvements to be carried out, hypothetically, on the Guaíba Waterfront, in Porto Alegre/RS. Additionally, the participants evaluated the PPSIG. The PPSIG allows people to produce spatial data that represents their perception of the considered environment. The methodology includes the use of SoftGIS developed in Finland and customized for the experiment on the Guaíba Waterfront, through a kind of do-it-yourself interface. The total sample consisted of 156 participants using the interactive online map, scoring 3,366 valid places. 109 of those participants also evaluated the PPSIG. The data analysis is based on spatial aggregation to delineate areas of concentration through heat maps. The questionnaire data about the assessment of the Guaíba Waterfront PPSIG were analysed according to the frequency of responses regarding the categories considered in each variable. The results show the potential of the PPSIG to identify the perceptions of participants, as well as its satisfactory assessment, with no greater difficulties found for its use.
DOI: 10.6084/m9.figshare.20026790.v1
title: Potential and evaluation of a PPGIS application about the Guaíba's waterfront in Porto Alegre

description: Abstract The purpose of this study is to test, in the Brazilian context, the potential of Public Participation Geographic Information Systems (PPSIG) to identify participants' perceptions as to the preferences, future uses, accessibility and improvements to be carried out, hypothetically, on the Guaíba Waterfront, in Porto Alegre/RS. Additionally, the participants evaluated the PPSIG. The PPSIG allows people to produce spatial data that represents their perception of the considered environment. The methodology includes the use of SoftGIS developed in Finland and customized for the experiment on the Guaíba Waterfront, through a kind of do-it-yourself interface. The total sample consisted of 156 participants using the interactive online map, scoring 3,366 valid places. 109 of those participants also evaluated the PPSIG. The data analysis is based on spatial aggregation to delineate areas of concentration through heat maps. The questionnaire data about the assessment of the Guaíba Waterfront PPSIG were analysed according to the frequency of responses regarding the categories considered in each variable. The results show the potential of the PPSIG to identify the perceptions of participants, as well as its satisfactory assessment, with no greater difficulties found for its use.
DOI: 10.6084/m9.figshare.20026792
title: Contribution to the study of properties of the self-compacting soil-cement for construction of monolithic walls

description: Abstract This study investigates the physical-mechanical properties of self-compacting soil-cement (SCSC) in order to develop mixtures of soil, cement, water and additives to achieve its minimal performance for its application on monolithic walls without mechanical compaction and densification. The influence of the soil/water proportion, the percentage and the type of additives in SCSC mixtures in the ratios 1:8 and 1:12 (cement:soil, in mass) were investigated, and the SCSC fluid consistency adopted in the test to determine the consistency index of the mortar was a 250mm-scatter diameter. Subsequently, mechanical strength, shrinkage and cracking tests were undertaken to analyse physical-mechanical performance. The results showed that SCSC achieves self-compacting properties - through the use of superplasticizer additives - ranging from 0.8% to 1.2% in relation to the cement mass, with the relevant parameters for manufacturing SCSC that meets the usual demands on monolithic walls being a minimum cement dosage of 8% in relation to sandy soil mass; and the Atterberg Limits as a reference for the water/soil ratio.
DOI: 10.6084/m9.figshare.20026792.v1
title: Contribution to the study of properties of the self-compacting soil-cement for construction of monolithic walls

description: Abstract This study investigates the physical-mechanical properties of self-compacting soil-cement (SCSC) in order to develop mixtures of soil, cement, water and additives to achieve its minimal performance for its application on monolithic walls without mechanical compaction and densification. The influence of the soil/water proportion, the percentage and the type of additives in SCSC mixtures in the ratios 1:8 and 1:12 (cement:soil, in mass) were investigated, and the SCSC fluid consistency adopted in the test to determine the consistency index of the mortar was a 250mm-scatter diameter. Subsequently, mechanical strength, shrinkage and cracking tests were undertaken to analyse physical-mechanical performance. The results showed that SCSC achieves self-compacting properties - through the use of superplasticizer additives - ranging from 0.8% to 1.2% in relation to the cement mass, with the relevant parameters for manufacturing SCSC that meets the usual demands on monolithic walls being a minimum cement dosage of 8% in relation to sandy soil mass; and the Atterberg Limits as a reference for the water/soil ratio.
DOI: 10.6084/m9.figshare.20026795.v1
title: Production process and evaluation of performance requirements of soil pigments based paint for buildings

description: Abstract The soil pigments are a sustainable alternative for the production of a paint to use on buildings. In this study production processes for soil pigment based paints were developed, aimed at obtaining a homogeneous and stable suspension, as well as evaluating the paints performance according to the norms established by ABNT NBR 15079:2011. Three samples of soil pigments extracted in the city of Viçosa, MG, were used. The formulations were defined using the statistic experimental mixture design. The performance of the mixtures was evaluated according to the limits of performance requirements established by ABNT. Both viscosity and the pH were measured and related to the performance. The results indicated that none of the formulations met all the performance requirements simultaneously. The pH had strong influence on performance, having defined viscosity, abrasion resistance, and the dry/wet paint hiding power. The mechanical dispersion, the "PVOH" resin and the pigments morphology determined the results obtained in this study, having become key themes to be addressed by other projects.
DOI: 10.6084/m9.figshare.20026795
title: Production process and evaluation of performance requirements of soil pigments based paint for buildings

description: Abstract The soil pigments are a sustainable alternative for the production of a paint to use on buildings. In this study production processes for soil pigment based paints were developed, aimed at obtaining a homogeneous and stable suspension, as well as evaluating the paints performance according to the norms established by ABNT NBR 15079:2011. Three samples of soil pigments extracted in the city of Viçosa, MG, were used. The formulations were defined using the statistic experimental mixture design. The performance of the mixtures was evaluated according to the limits of performance requirements established by ABNT. Both viscosity and the pH were measured and related to the performance. The results indicated that none of the formulations met all the performance requirements simultaneously. The pH had strong influence on performance, having defined viscosity, abrasion resistance, and the dry/wet paint hiding power. The mechanical dispersion, the "PVOH" resin and the pigments morphology determined the results obtained in this study, having become key themes to be addressed by other projects.
DOI: 10.6084/m9.figshare.20026796
title: Development of a new ceramic product for paving footways and public areas

description: Abstract Mobility and security issues are increasingly discussed in the major urban centers and initiatives in this universe should provide practical and economical solutions that generate benefits for citizens. The pavement, one of the factors for urban quality, is the essential to ensuring access to the right to come and go. Among these solutions, the interlocking pavement stands out as being one of the most recommended products on the paving of sidewalks and public areas. In some countries in Europe and Latin America ceramics interlocking paving systems are widely used, but this practice is still little found Brazil in by the absence of this product in the Brazilian market. Thus the purpose of this work was to develop ceramics interlocking paving for use on sidewalks and public areas. Also it was added to the new product developed burned waste coming from the manufacturing process, which are called chamotte aimed at reducing the material to be discarded into the environment. After the positive results for characterizing the products, new designs for this type of products were created, which were produced in laboratory scale.
DOI: 10.6084/m9.figshare.20026796.v1
title: Development of a new ceramic product for paving footways and public areas

description: Abstract Mobility and security issues are increasingly discussed in the major urban centers and initiatives in this universe should provide practical and economical solutions that generate benefits for citizens. The pavement, one of the factors for urban quality, is the essential to ensuring access to the right to come and go. Among these solutions, the interlocking pavement stands out as being one of the most recommended products on the paving of sidewalks and public areas. In some countries in Europe and Latin America ceramics interlocking paving systems are widely used, but this practice is still little found Brazil in by the absence of this product in the Brazilian market. Thus the purpose of this work was to develop ceramics interlocking paving for use on sidewalks and public areas. Also it was added to the new product developed burned waste coming from the manufacturing process, which are called chamotte aimed at reducing the material to be discarded into the environment. After the positive results for characterizing the products, new designs for this type of products were created, which were produced in laboratory scale.
DOI: 10.6084/m9.figshare.20026798
title: Theoretical and experimental study of slender structural masonry walls

description: Abstract One of the factors to be taken into account in the design of compression loaded elements is their slenderness. Nowadays, in Brazil, the industry still uses the concept of simplified slenderness ratio - in which the buckling length is determined by an effective height (hef) and the radius of gyration is replaced by a parameter called effective thickness (tef) - when calculating the resistance reduction factor. Other masonry codes, such as the North American, European and Australian, also use the resistance reduction factor in their wall compression load capacity formulation. Yet, the Canadian code indicates the need for a more accurate and realistic analysis of slender walls, considering the balance in the deformed configuration of the wall (P-Delta analysis). This paper reports the findings of an experimental program that tested 18 ceramic and concrete block walls with high slenderness ratios, obtained with thin block dimensions. The predictions of load capacity for the case of hollow concrete blocks were close to the test results. In the case of the ceramic blocks, which had a complex, double-face shell geometry, only the Canadian code approach produced the test results with some degree of certainty and proximity. Slenderer walls and complex geometry blocks require more refined calculation procedures. P-Delta analysis and the verification of the section with brittle-tensile materials solutions may apply.
DOI: 10.6084/m9.figshare.20026798.v1
title: Theoretical and experimental study of slender structural masonry walls

description: Abstract One of the factors to be taken into account in the design of compression loaded elements is their slenderness. Nowadays, in Brazil, the industry still uses the concept of simplified slenderness ratio - in which the buckling length is determined by an effective height (hef) and the radius of gyration is replaced by a parameter called effective thickness (tef) - when calculating the resistance reduction factor. Other masonry codes, such as the North American, European and Australian, also use the resistance reduction factor in their wall compression load capacity formulation. Yet, the Canadian code indicates the need for a more accurate and realistic analysis of slender walls, considering the balance in the deformed configuration of the wall (P-Delta analysis). This paper reports the findings of an experimental program that tested 18 ceramic and concrete block walls with high slenderness ratios, obtained with thin block dimensions. The predictions of load capacity for the case of hollow concrete blocks were close to the test results. In the case of the ceramic blocks, which had a complex, double-face shell geometry, only the Canadian code approach produced the test results with some degree of certainty and proximity. Slenderer walls and complex geometry blocks require more refined calculation procedures. P-Delta analysis and the verification of the section with brittle-tensile materials solutions may apply.
DOI: 10.6084/m9.figshare.20026799
title: Application of a built environment index for evaluation of sustainable mobility

description: Abstract Different studies have investigated and confirmed the influence that the dimensions that make up the built environment characteristics of a given city area have on journey patterns. This paper presents the application of the index proposed by Grieco, Portugal and Alves (2015), based on the built environment, to verify the potential of three neighborhoods in the city of Niterói, RJ (Icaraí, Santa Rosa and Região Oceânica) to stimulate sustainable journeys. In this application, the indicators composing the five dimensions of the index (Density, Design, Diversity, Distance to transit and Destination accessibility) were collected and calculated in each neighborhood. The results show that the expectations related to the characteristics of the urban environment in the analyzed areas correspond to the potential to encourage sustainable journeys. The proposed index proved feasible and apparently adaptable to local specificities. It can be a useful tool in the city planning process and in the promotion of sustainable journeys.
DOI: 10.6084/m9.figshare.20026799.v1
title: Application of a built environment index for evaluation of sustainable mobility

description: Abstract Different studies have investigated and confirmed the influence that the dimensions that make up the built environment characteristics of a given city area have on journey patterns. This paper presents the application of the index proposed by Grieco, Portugal and Alves (2015), based on the built environment, to verify the potential of three neighborhoods in the city of Niterói, RJ (Icaraí, Santa Rosa and Região Oceânica) to stimulate sustainable journeys. In this application, the indicators composing the five dimensions of the index (Density, Design, Diversity, Distance to transit and Destination accessibility) were collected and calculated in each neighborhood. The results show that the expectations related to the characteristics of the urban environment in the analyzed areas correspond to the potential to encourage sustainable journeys. The proposed index proved feasible and apparently adaptable to local specificities. It can be a useful tool in the city planning process and in the promotion of sustainable journeys.
DOI: 10.6084/m9.figshare.20026802
title: Minimum contemporary apartment: development of the concept of use as key for obtaining its quality

description: Abstract The phenomenon of minimizing apartments is a view reality in a significant number of properties sold in Brazil, with unsatisfactory and inappropriate design solutions for contemporary ways of life. Therefore, it is crucial to analyze these spaces, seeking ways to mitigate such problems through understanding the uses. This article is part of the Master thesis "Minimum contemporary apartments: development of the concept of use as key for obtaining its quality" developed in the Graduate Program in Architecture and Urbanism - School of Architecture Planning and Design (FAUeD) of the Federal University of Uberlândia (UFU), funded by Fapemig. Its main objective is to analyze the inadequacies generated by the minimization of apartments, its effects on the ways of living, indicating parameters to guide the improvement of the functional quality of these spaces, through closer interaction between design and architecture. Focuses on the performance aspects of the concept of use, ranging from the architectural elements that make up the space to the activities performed in the household and their overlaps. The analysis allowed us to visualize the performance and role of the concept of use, obtaining as results the recommendations intended to produce the minimum apartment, realizing that a dwelling and its furniture and equipment are part of a variable and dynamic process.
DOI: 10.6084/m9.figshare.20026802.v1
title: Minimum contemporary apartment: development of the concept of use as key for obtaining its quality

description: Abstract The phenomenon of minimizing apartments is a view reality in a significant number of properties sold in Brazil, with unsatisfactory and inappropriate design solutions for contemporary ways of life. Therefore, it is crucial to analyze these spaces, seeking ways to mitigate such problems through understanding the uses. This article is part of the Master thesis "Minimum contemporary apartments: development of the concept of use as key for obtaining its quality" developed in the Graduate Program in Architecture and Urbanism - School of Architecture Planning and Design (FAUeD) of the Federal University of Uberlândia (UFU), funded by Fapemig. Its main objective is to analyze the inadequacies generated by the minimization of apartments, its effects on the ways of living, indicating parameters to guide the improvement of the functional quality of these spaces, through closer interaction between design and architecture. Focuses on the performance aspects of the concept of use, ranging from the architectural elements that make up the space to the activities performed in the household and their overlaps. The analysis allowed us to visualize the performance and role of the concept of use, obtaining as results the recommendations intended to produce the minimum apartment, realizing that a dwelling and its furniture and equipment are part of a variable and dynamic process.