Apresentação

Souza, Nelson Rosário de

doi:10.1590/s0104-44782001000100002

Cited by 1 publication

(1 citation statement)

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“…However, since land use regulations for such sector allow densification ͑restricted to the street axes themselves͒, a stronger demand for mass transportation is created. 8 It should also be emphasized that the first two floors in the structural sector are destined to commercial activities ͑originally, only the first two floors were meant for commercial use; nowadays, residential and office buildings are found in this sector͒ and the plot ratio is 100% of the lot. No height restrictions are made to the buildings forming the urban canyon, but a maximum built area equivalent to 400% of the size of the lot is allowed to the floors above the commercial levels ͑thus, total built area can reach a maximum of 600% of the lot's size͒.…”

Section: Local Sitementioning

confidence: 99%

Thermal and daylighting evaluation of the effect of varying aspect ratios in urban canyons in Curitiba, Brazil

Krüger

Suga

2009

Journal of Renewable and Sustainable Energy

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Urbanization is commonly associated with densification, which may lead to vertical growth or urban consolidation. The present study evaluates the daylighting potential as a function of urban morphology for the city of Curitiba ͑25°25Ј50Љ S, 46°16Ј15Љ W͒. It also presents a thermal analysis for a representative street axis orientation in this location, showing indoor conditions within a test office for different aspect ratios. In Curitiba, certain street axes were designated to allow densification ͑in the so-called structural sector of the city͒. As a consequence, there is a great risk of urban canyons being formed, as local legislation does not impose height restrictions to adjacent buildings. Daylight analysis was based on software simulations with LUZ DO SOL, DLN, ECOTECT, and RADIANCE. Thermal analysis was carried out by means of computer simulations with the IDA ICE software. It was verified that diagonal axial orientations relative to the north ͑rotated in 45°͒ provide higher daylighting potentials to buildings located in urban canyons. With regard to the thermal effect of varying the aspect ratio in an east-west street axis, results confirm daylighting simulations, showing the interrelation between both comfort parameters.

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Section: Local Sitementioning

confidence: 99%