Site planning and design should follow passive strategy, conform to local climate characteristics, respect regional culture and lifestyle, and optimize architectural layout.
The light environment design requirements of the site are as follows:
1. The orientation and layout of buildings should be conducive to obtaining good sunshine. The main orientation of the building should be controlled within the range of 45 south of due east and 30 south of due west, and the best orientation should be determined through sunshine simulation analysis.
2, residential building sunshine standards should meet the national and local standards and the relevant provisions of the planning department. Public buildings with sunshine requirements should determine the sunshine standard according to the specifications to avoid line-of-sight interference.
3. While meeting the sunshine standard, the planning and layout of the building should not reduce the sunshine standard requirements of the surrounding buildings and sites.
4. The lighting design of the site and road should be carried out reasonably. Outdoor lighting should not produce direct light from the windows of residential buildings, and site and road lighting should not emit direct light into the air. The glare limit of ground reflected light shall comply with the provisions of relevant standards.
5, building facade design and material selection should be able to effectively avoid light pollution.
The wind environment design requirements of the site are as follows:
1, building planning and layout should create a good wind environment, ensure comfortable outdoor activity space and good indoor natural ventilation conditions, reduce the adverse impact of airflow on the regional micro-environment and the building itself, and create good natural ventilation conditions in summer and transitional seasons.
2. The building layout should avoid the unfavorable wind direction in winter, and block the cold wind in winter by setting windbreaks, boards, windbreaks and micro-topography.
3. Simulate and predict the wind environment of the site under typical meteorological conditions, and optimize the planning and layout of the building. In winter, the wind speed in the pedestrian area around the building should be less than 5m/s or the outdoor wind speed amplification factor of the building should not be greater than 2.
4. In the transitional season and summer, the outdoor wind pressure of the building is uniform, and the surface pressure difference before and after the building (or the main window) is greater than 0.5pa at the typical wind speed and wind direction.
5. Except for the windward side of the first row of buildings, the wind pressure difference between windward side and leeward side of buildings shall not exceed 5 pa.
6. The buildings in the site should adopt the way of raised floor to divert natural airflow.
The acoustic environment design of the site shall conform to the current national standard "Quality Standard for Acoustic Environment" GB3096. The noise around the site should be detected and the environmental noise after the implementation of the project should be predicted. The design requirements are as follows:
1. Sound insulation and noise reduction measures should be taken to effectively control the fixed noise sources in the site.
2. When the building is adjacent to expressway or expressway, special noise analysis should be conducted. In addition to taking measures such as noise barrier or noise reduction pavement, it should also meet the concession requirements of relevant codes.
3. Buildings with high requirements for acoustic environment should be arranged on the windward side where the main noise source dominates the wind direction.
The thermal environment design requirements of the site are as follows:
1. Light-colored floor materials with reflectivity of 0.3 ~ 0.5 shall be adopted, roofing materials with reflectivity of 0.3 ~ 0.6 shall be adopted, and the building surface shall be decorated with light colors.
Tall trees should be planted to provide shade for parking lots, sidewalks and squares.
3. Computer simulation should be used to optimize the outdoor thermal environment design, and corresponding measures should be taken to make the daily average outdoor heat island intensity not higher than 65438 0.5℃ in summer.
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