Ariovaldo Denis Granja | Universidade Estadual de Campinas (original) (raw)

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O target costing ou custeio-meta (CM) é uma abordagem que teve sua origem na indústria manufatu... more O target costing ou custeio-meta (CM) é uma abordagem que teve sua origem na
indústria manufatureira que tem como objetivo proporcionar a redução de custo sem diminuir
a qualidade e o valor do produto aos olhos do cliente e começou a ser utilizada na indústria
da construção civil em diversos países. Um aspecto relevante para sua implementação na
indústria da construção civil é a qualidade da informação e interação das equipes nas fases
iniciais de um empreendimento. O uso da Modelagem da Informação da Construção (BIM)
permite a extração de informações de forma rápida e precisa no início da elaboração do
projeto, por exemplo, na forma de quantitativos e custos. O artigo tem como objetivo explorar
a sinergia existente entre o CM e o BIM, apontando quais os benefícios proporcionados por
essa união. Este é um estudo secundário por meio de revisão de literatura de estudos primários
sobre CM e BIM com o objetivo de sintetizar os resultados e explorar a possível sinergia do
uso integrado dessas abordagens. Os resultados evidenciam os aspectos positivos dessa
utilização conjunta. As conclusões apontam para diversos benefícios e estratégias para que
ocorra sinergia, tais como a quantificação automática, estímulo à criatividade, avaliação de
alternativas de custos e a integração das equipes em novas formas de contratação.

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O custo tem um impacto significante não só no processo de projeto, mas também na solução arquitet... more O custo tem um impacto significante não só no processo de projeto, mas também na solução arquitetônica apresentada. O Target Value Design (TVD), pode se apresentar como uma abordagem promissora para direcionar o processo de projeto pelo custo e pelas percepções de valor do cliente ou usuário final. Esta pesquisa almejou disseminar conceitos do TVD junto a agentes participantes na gestão do processo de projeto de empreendimentos imobiliários e contribuir para a reflexão teórica sobre a sua adoção neste meio. O método de pesquisa consistiu em simulações-piloto em meio acadêmico para adaptações iniciais e simulações posteriores em empresa de incorporação imobiliária. As simulações se deram em duas rodadas, a primeira simulando o ambiente tradicional de Design-Bid-Build (DBB) e a segunda utilizando o TVD. Os resultados provenientes da segunda rodada (TVD), onde foi imposta uma restrição de custo, acabaram levando a uma aparente simplificação do modelo. O TVD demanda mudanças no processo de projeto, e uma das mais desafiadoras é considerar o custo como parâmetro de entrada no processo, em vez de ser uma mera consequência do mesmo.

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In this research, the influence of external colour on the dynamics of the heat flow through a fla... more In this research, the influence of external colour on the dynamics of the heat flow through a flat solid roof, with variable thermal resistance, has been studied analytically. The chromatic effect on the density of heat flow through the roof has been analysed using periodic solutions of the heat conduction equation, by means of Fourier analysis. The simulation has been carried out over a period of 24 h, for the summer design day of Campinas, in the State of São Paulo, Brazil, and its composite climate. An almost linear relationship between heat flow amplitudes (Δqi) and the thickness of a concrete roof has been noticeable in the range from 5 to 14 cm for a grey coloured exterior surface and a corresponding white one. Conversely, from 15 cm and more, this relationship starts flattening. It may be concluded that as the thermal resistance of the concrete roof increases (>15 cm), the effect of the exterior colour surface on the periodic heat transfer through the roof is attenuated. As a consequence, the conflict between choosing colour for aesthetics and assuring energy efficiency of opaque building components in hot climates can be mitigated, if building designers make proper use of thermal inertia. Copyright © 2003 John Wiley & Sons, Ltd.

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CEP

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Proceedings IGLC-14, July, Jan 1, 2006

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Ambiente …, Jan 1, 2009

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Ambiente Construído, Jan 1, 2010

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… of International group of lean construction, 12th …, Jan 1, 2004

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13th International Group …, Jan 1, 2005

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Annual Conference on Lean Construction, Jan 1, 2007

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Habitat International, Jan 1, 2011

User satisfaction has been studied extensively in social housing, but this has not had a signific... more User satisfaction has been studied extensively in social housing, but this has not had a significant impact on design factors in many cases. In recent years, such studies have included the assessment of values relating to design attributes. This paper presents a discussion on the concept of desired value in social housing, based on results of a study conducted in the region of the city of Campinas, in the State of São Paulo, Brazil. End-users of four multi-family social housing projects, based on five storey walk-up apartment blocks were asked to identify aspects of housing design, which are most valued. The research method was based on the concept of stated preferences, where approximately 200 respondents organized a list of design attributes in order of their desired values. The investigation tool was based on the analogy of a deck of cards. Data was statistically analyzed and a general importance index was created for each of the value attributes. Results showed that security was the main preference aspect. Analysis of general results indicates a list of possible improvements to projects with regard to value delivery to end-users at little or no costs. To contribute towards a process of incremental improvements to social housing models in the State of São Paulo, the results of the case study can be applied by agents of the local housing provision system, in conjunction with a conceptual framework of data on housing quality indicators.► Conceptual shift in POE studies from satisfaction rates to desired values. ► Data collection method used a deck of 26 value cards. ► Data analysis was based on statistical inference. ► Main desired values are: security, nature and privacy. ► Improvements to local housing design shown through conceptual framework.

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Architectural Engineering and Design …, Jan 1, 2011

The suitability of target costing for use in construction remains controversial and specific stud... more The suitability of target costing for use in construction remains controversial and specific studies to assist its implementation are lacking. This research aims to critically inspect the contextual characteristics that may influence its implementation during the product development process (PDP) for social housing projects in Brazil. An exploratory and instrumental case study within a state social housing provider company provided PDP-related data. Data collection involved conducting unstructured interviews of higher management and diverse technical staff, and the analysis of company documents and records. A framework describing how target costing is applied in PDP is presented and general propositions are drawn from a theoretical basis built on the relationship between the characteristics of the analysed context and target costing theory. Opportunities and obstacles to target costing applicability were derived from them, as well as clarifications about relevant issues concerning the implementation process of this approach. Although the possibilities of applying target costing to social housing projects are limited by its intrinsic characteristics and traditional institutional barriers to new procurement methods, this article contributes to the discussion for more efficient and proactive ways of conceiving social housing projects, in an effort to deliver more value to stakeholders and end-users.

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O target costing ou custeio-meta (CM) é uma abordagem que teve sua origem na indústria manufatu... more O target costing ou custeio-meta (CM) é uma abordagem que teve sua origem na
indústria manufatureira que tem como objetivo proporcionar a redução de custo sem diminuir
a qualidade e o valor do produto aos olhos do cliente e começou a ser utilizada na indústria
da construção civil em diversos países. Um aspecto relevante para sua implementação na
indústria da construção civil é a qualidade da informação e interação das equipes nas fases
iniciais de um empreendimento. O uso da Modelagem da Informação da Construção (BIM)
permite a extração de informações de forma rápida e precisa no início da elaboração do
projeto, por exemplo, na forma de quantitativos e custos. O artigo tem como objetivo explorar
a sinergia existente entre o CM e o BIM, apontando quais os benefícios proporcionados por
essa união. Este é um estudo secundário por meio de revisão de literatura de estudos primários
sobre CM e BIM com o objetivo de sintetizar os resultados e explorar a possível sinergia do
uso integrado dessas abordagens. Os resultados evidenciam os aspectos positivos dessa
utilização conjunta. As conclusões apontam para diversos benefícios e estratégias para que
ocorra sinergia, tais como a quantificação automática, estímulo à criatividade, avaliação de
alternativas de custos e a integração das equipes em novas formas de contratação.

Bookmarks Related papers MentionsView impact

O custo tem um impacto significante não só no processo de projeto, mas também na solução arquitet... more O custo tem um impacto significante não só no processo de projeto, mas também na solução arquitetônica apresentada. O Target Value Design (TVD), pode se apresentar como uma abordagem promissora para direcionar o processo de projeto pelo custo e pelas percepções de valor do cliente ou usuário final. Esta pesquisa almejou disseminar conceitos do TVD junto a agentes participantes na gestão do processo de projeto de empreendimentos imobiliários e contribuir para a reflexão teórica sobre a sua adoção neste meio. O método de pesquisa consistiu em simulações-piloto em meio acadêmico para adaptações iniciais e simulações posteriores em empresa de incorporação imobiliária. As simulações se deram em duas rodadas, a primeira simulando o ambiente tradicional de Design-Bid-Build (DBB) e a segunda utilizando o TVD. Os resultados provenientes da segunda rodada (TVD), onde foi imposta uma restrição de custo, acabaram levando a uma aparente simplificação do modelo. O TVD demanda mudanças no processo de projeto, e uma das mais desafiadoras é considerar o custo como parâmetro de entrada no processo, em vez de ser uma mera consequência do mesmo.

Bookmarks Related papers MentionsView impact

In this research, the influence of external colour on the dynamics of the heat flow through a fla... more In this research, the influence of external colour on the dynamics of the heat flow through a flat solid roof, with variable thermal resistance, has been studied analytically. The chromatic effect on the density of heat flow through the roof has been analysed using periodic solutions of the heat conduction equation, by means of Fourier analysis. The simulation has been carried out over a period of 24 h, for the summer design day of Campinas, in the State of São Paulo, Brazil, and its composite climate. An almost linear relationship between heat flow amplitudes (Δqi) and the thickness of a concrete roof has been noticeable in the range from 5 to 14 cm for a grey coloured exterior surface and a corresponding white one. Conversely, from 15 cm and more, this relationship starts flattening. It may be concluded that as the thermal resistance of the concrete roof increases (>15 cm), the effect of the exterior colour surface on the periodic heat transfer through the roof is attenuated. As a consequence, the conflict between choosing colour for aesthetics and assuring energy efficiency of opaque building components in hot climates can be mitigated, if building designers make proper use of thermal inertia. Copyright © 2003 John Wiley & Sons, Ltd.

Bookmarks Related papers MentionsView impact

Bookmarks Related papers MentionsView impact

CEP

Bookmarks Related papers MentionsView impact

Proceedings IGLC-14, July, Jan 1, 2006

Bookmarks Related papers MentionsView impact

Ambiente …, Jan 1, 2009

Bookmarks Related papers MentionsView impact

Ambiente Construído, Jan 1, 2010

Bookmarks Related papers MentionsView impact

… of International group of lean construction, 12th …, Jan 1, 2004

Bookmarks Related papers MentionsView impact

13th International Group …, Jan 1, 2005

Bookmarks Related papers MentionsView impact

Annual Conference on Lean Construction, Jan 1, 2007

Bookmarks Related papers MentionsView impact

Habitat International, Jan 1, 2011

User satisfaction has been studied extensively in social housing, but this has not had a signific... more User satisfaction has been studied extensively in social housing, but this has not had a significant impact on design factors in many cases. In recent years, such studies have included the assessment of values relating to design attributes. This paper presents a discussion on the concept of desired value in social housing, based on results of a study conducted in the region of the city of Campinas, in the State of São Paulo, Brazil. End-users of four multi-family social housing projects, based on five storey walk-up apartment blocks were asked to identify aspects of housing design, which are most valued. The research method was based on the concept of stated preferences, where approximately 200 respondents organized a list of design attributes in order of their desired values. The investigation tool was based on the analogy of a deck of cards. Data was statistically analyzed and a general importance index was created for each of the value attributes. Results showed that security was the main preference aspect. Analysis of general results indicates a list of possible improvements to projects with regard to value delivery to end-users at little or no costs. To contribute towards a process of incremental improvements to social housing models in the State of São Paulo, the results of the case study can be applied by agents of the local housing provision system, in conjunction with a conceptual framework of data on housing quality indicators.► Conceptual shift in POE studies from satisfaction rates to desired values. ► Data collection method used a deck of 26 value cards. ► Data analysis was based on statistical inference. ► Main desired values are: security, nature and privacy. ► Improvements to local housing design shown through conceptual framework.

Bookmarks Related papers MentionsView impact

Architectural Engineering and Design …, Jan 1, 2011

The suitability of target costing for use in construction remains controversial and specific stud... more The suitability of target costing for use in construction remains controversial and specific studies to assist its implementation are lacking. This research aims to critically inspect the contextual characteristics that may influence its implementation during the product development process (PDP) for social housing projects in Brazil. An exploratory and instrumental case study within a state social housing provider company provided PDP-related data. Data collection involved conducting unstructured interviews of higher management and diverse technical staff, and the analysis of company documents and records. A framework describing how target costing is applied in PDP is presented and general propositions are drawn from a theoretical basis built on the relationship between the characteristics of the analysed context and target costing theory. Opportunities and obstacles to target costing applicability were derived from them, as well as clarifications about relevant issues concerning the implementation process of this approach. Although the possibilities of applying target costing to social housing projects are limited by its intrinsic characteristics and traditional institutional barriers to new procurement methods, this article contributes to the discussion for more efficient and proactive ways of conceiving social housing projects, in an effort to deliver more value to stakeholders and end-users.

Bookmarks Related papers MentionsView impact