This project is located in Qinhuai District, Nanjing City, Jiangsu Province, with planned residential land on both sides of the northeast. The planned land area is about 4071 ㎡, the green area is 1425 ㎡, the total construction area is 3121 ㎡, the above-ground construction area is about 2548 ㎡, the floor area ratio is 0.63, and the green area ratio is 35.01.

The main building of the project is a 9-class kindergarten with 3 floors above the ground. Its functions include activity units, special classrooms, service management rooms and logistics auxiliary rooms. 2# monomer adopts the form of wood structure, which is a multifunctional activity room.

Low carbon, ecology, wisdom

This project takes the overall characteristics of "low carbon, ecology, and wisdom" as the design purpose, reasonably considers ecological energy-saving technology, realizes the harmonious symbiosis between man and nature, part and whole, indoor and outdoor, and implements the concept of ecological civilization construction and green development. Build a green, smart and future-oriented new campus, create a high-quality city image, and form a good urban landscape.

passive energy saving active energy saving renewable energy utilization

Passive energy-saving technology is given priority, active energy-saving technology is optimized, the path of renewable energy is supplemented, and the dual control of building energy consumption and carbon emission is realized. The concept of respecting nature, inheriting history, green and low-carbon runs through the whole life cycle of the building, and creates a modern kindergarten of "health, comfort, energy saving, environmental protection and wisdom" according to local conditions.

| Passive Energy Saving Design

Reasonable design of building orientation, facade design, building shape coefficient, enclosure structure insulation, window opening form, internal space (building interlayer ventilation space, etc.) is carried out to enhance natural ventilation and natural lighting of the building, reduce the cooling and heating load of the building, realize self-regulation of the internal environment of the building, create the internal microclimate of the building, and improve the passive performance of the building.

1. Orientation and spatial layout -- L-shaped layout The main body moves northward. Underground space uses atrium to design solar powered skylight system

The planned residential buildings on the east and south sides have a great influence on the sunshine of the kindergarten. Therefore, the kindergarten is of L-shaped layout as a whole. On the premise of meeting the sunshine requirements of the activity units, the main building will be moved northward as much as possible to vacate the activity site on the south side, so that the whole can obtain good sunshine conditions to the greatest extent.

Limited by the coverage rate of planning indicators, the underground space should be used as much as possible, the above-ground space with sufficient lighting should be reserved for children, the kitchen, office and other spaces should be set underground, and the sunken courtyard should be used to solve the lighting and ventilation problems.

Monomer 1# is a three-story building with a flat shape. In order to solve the problems of lighting and natural ventilation in the inner area, the atrium design is adopted on the east and west sides of the building. In summer and transition seasons, natural ventilation is realized through the vertical passage of the atrium to improve the indoor microclimate. The skylight system on the roof uses solar powered window technology, and the smart switch is powered by solar energy, with an annual energy consumption of less than 25kWh/²·a。

2. Enclosure structure design-optimization of wall ratio of external insulation window

For buildings in hot summer and cold winter areas, strengthening the external wall insulation is conducive to reducing the air conditioning load. At the same time, reasonable window-wall area ratio ensures not only full use of natural lighting and ventilation, but also avoids the loss of building energy consumption, and then assists reasonable shading measures to effectively reduce the radiation heat of buildings in summer.

3. Selection of green building materials

2# monomer (multifunctional activity room) is a 6-meter-high single-storey building, which is designed in the form of wood structure. The main material is glulam with stable engineering characteristics, and its mechanical properties can meet the design requirements of large span. The carbon emissions of wood structure buildings are much lower than that of traditional buildings. The growth process of wood raw materials has a natural carbon sequestration effect, which is unmatched by other traditional building materials. Wood is "the only truly natural and renewable building material".