Made available in DSpace on 2014-12-17T13:56:50Z (GMT). No. of bitstreams: 1 RicardoSM.pdf: 5804329 bytes, checksum: 9deae83693b85d7c92acfe8d4535dbbd (MD5) Previous issue date: 2003-07-21 / This work analyses a study on natural ventilation and its relation to the urban legislation versus the building types in an urban fraction of coastal area of Praia do Meio in the city of Natal/RN, approaching the type or types of land use most appropriate to this limited urban fraction. The objective of this study is to analyse the effects of the present legislation as well as the types of buildings in this area on the natural ventilation. This urban fraction was selected because it is one of the sites from where the wind flows into the city of Natal. This research is based on the hypothesis stating that the reduction on the porosity of the urban soil (decrease in the set back/boundary clearance), and an increase in the form (height of the buildings) rise the level of the ventilation gradient, consequently causing a reduction on the wind speed at the lowest part of the buildings. Three-dimensional computational models were used to produce the modes of occupation allowed in the urban fraction within the area under study. A Computational Fluid Dynamics (CFD) software was also used to analyse the modes of land occupation. Following simulation, a statistical assessment was carried out for validation of the hypothesis. It was concluded that the reduction in the soil porosity as a consequence of the rates that defined the minimum boundary clearance between the building and the boundary of the plot (and consequently the set back), as well as the increase in the building form (height of the buildings) caused a reduction in the wind speed, thus creating heat islands / Analisa um estudo da ventila??o natural e sua rela??o com as prescri??es urban?sticas x tipologia edil?cia numa fra??o urbana da Orla da Praia do Meio em Natal/RN, abordando qual ou quais usos mais se adequam ? fra??o urbana delimitada. Tem como objetivo analisar os efeitos das normas e das tipologias edil?cias sobre a ventila??o natural. A fra??o urbana foi escolhida por ser uma das ?reas de entrada dos ventos em Natal/RN. A pesquisa parte da hip?tese de que a redu??o da porosidade da malha urbana (diminui??o dos recuos) e o aumento do gabarito (altura das edifica??es), elevam o n?vel do gradiente de ventila??o, reduzindo conseq?entemente a velocidade dos ventos nas camadas mais baixas das edifica??es. A abordagem foi desenvolvida atrav?s de modelos computacionais tridimensionais, produzindo os modos de ocupa??o permitidos na fra??o urbana da ?rea de estudo, submetidos posteriormente ? an?lise computacional em software de Mec?nica de Fluidos. Ap?s simula??o, realizou-se avalia??o estat?stica, para valida??o das hip?teses. Concluiu-se que a diminui??o da porosidade em conseq??ncia da redu??o dos ?ndices que definem os afastamentos m?nimos (recuos) entre o edif?cio e o limite do lote (e conseq?entemente entre os edif?cios), e o aumento do gabarito das edifica??es (altura da edifica??o) reduziram a velocidade dos ventos, possibilitando assim a forma??o de ilhas de calor

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-11-03T20:42:55Z No. of bitstreams: 1 LucyKheylerMacielDeMendonca_DISSERT.pdf: 1930646 bytes, checksum: e7fe9a6cc06c47d9d8ca4ea10ae5d699 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-11-17T00:20:16Z (GMT) No. of bitstreams: 1 LucyKheylerMacielDeMendonca_DISSERT.pdf: 1930646 bytes, checksum: e7fe9a6cc06c47d9d8ca4ea10ae5d699 (MD5) / Made available in DSpace on 2017-11-17T00:20:16Z (GMT). No. of bitstreams: 1 LucyKheylerMacielDeMendonca_DISSERT.pdf: 1930646 bytes, checksum: e7fe9a6cc06c47d9d8ca4ea10ae5d699 (MD5) Previous issue date: 2017-08-22 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / O Plano diretor ? o instrumento b?sico que orienta a pol?tica de desenvolvimento e de ordenamento da expans?o urbana dos munic?pios brasileiros. As sucessivas altera??es e revis?es do plano podem afetar a capacidade de produ??o imobili?ria, bem como a din?mica de valoriza??o e o crescimento diferenciado de algumas ?reas da cidade. Nesse contexto, a aprova??o da Lei Complementar n? 27, em 3 de novembro de 2000, alterou as prescri??es urban?sticas para uma por??o de Ponta Negra, criando uma zona adens?vel e atrelando a esta maior capacidade de adensamento. Este estudo prop?s-se a analisar os impactos decorrentes da aplica??o desta lei sobre a produ??o imobili?ria, al?m de avaliar se foi realmente determinante para ditar o ritmo da constru??o civil, no contexto das press?es imobili?rias e da infraestrutura urbana que permeou as altera??es da legisla??o. Para tanto, foi realizado um levantamento de dados em cart?rio sobre a caracteriza??o de todos os empreendimentos aprovados e registrados, bem como da popula??o, da habita??o e da infraestrutura do bairro nas secretarias e ?rg?os p?blicos respons?veis. Os resultados demonstraram uma grande produ??o imobili?ria, de forma que a expans?o dos ?ndices urban?sticos foi considerada um impulso para a constru??o civil, por?m n?o foi determinante. Foi decisiva, no entanto, para o processo de verticaliza??o ocorrido. Em pouco mais de seis anos, na revis?o seguinte do plano diretor, as prescri??es retornaram ? condi??o de adensamento b?sico, demonstrando-se fr?gil, ausente de crit?rios t?cnicos que justificassem as altera??es, e fortemente influenciada pelo setor imobili?rio. A voca??o tur?stica natural de Ponta Negra, aliada ?s obras de infraestrutura promovidas pelo Estado e os investimentos externos formaram o cen?rio ideal para o mercado imobili?rio, refletindo-se na produ??o de unidades do tipo flat, as segundas resid?ncias, voltadas para o p?blico estrangeiro. / The Master Plan is the main document that guides the development and planning policy of the urban expansion of the Brazilian municipalities. Since successive modifications and revisions of the plan can affect a real estate production capacity, as well as the dynamic of appreciation and the differentiated growth of some areas of the city. In this regard, the approval of Law No. 27, on November 3, 2000, modified the urbanistic prescriptions for a part of Ponta Negra, intensified the zone and provided this greater capacity of urban densification. This study aims to analyze the impacts of the law on real estate production. In addition to assessing if it was really decisive to civil construction, in the context of real estate pressures and urban infrastructure, which include the successive plan modifications. For this purpose, a collection of information was carried out on all real estate development approved and registered in notary offices, as well as characteristics of the population, housing and infrastructure in the responsible public secretariats and agencies. The results showed a large real state production. The expansive of urban rates was considered an impulse for the construction, but it was not decisive. It was decisive, however, for the verticalization process that occurred. In just over six years, in the next master plan revision, the prescriptions returned to the condition of basic densification, being fragile, lacking technical rules that justified the changes, and strongly