How is architectural projection calculated? How to calculate the projection area of the project?

The projection area is the contour area of the superimposed planes of each floor of the building, including the cantilevered parts, such as balconies, arcades, etc.

The projection area is the maximum coverage of the horizontal projection of a building, no matter how many floors there is only one value, if a certain floor cantilevered out of a few canopies, slabs, the projection range increases the area. The projected area value has no legal significance in construction disputes. The rules for calculating floor area are regulations, and their value is the sum of the floor area of each floor calculated by the "rules".

Some of the above-mentioned cantilevered canopies, boards, balconies, etc., are not counted or half counted in the "rules".

Dear, I am glad to answer for you: the projection area algorithm of the jujube and the demolition process is as follows: 1. The enclosed balcony of the original design is calculated according to the horizontal projection area of its periphery; 2. The floor area of the balcony (bottom balcony) is calculated according to half of the horizontal projection area of the bottom plate; 3. The concave balcony shall be included in the construction area according to half of its combat area (including the area of the parapet wall); 4. For the half-lifted and half-concave balcony, the construction area shall be calculated according to half of the horizontal projection area of the bottom plate of the protruding part, and the building surface shed volume shall be calculated according to half of the combat area of the recessed part.

The calculation method of the balcony construction area shall be calculated according to the current national "Building Area Calculation Rules"1. For the unenclosed balcony of a residential building that meets the following standards, the construction area shall be calculated according to half of the horizontal projection of the enclosure structure. If exceeded, the excess part is calculated as the entire floor area. Enclosed balconies are calculated regardless of whether the stool dates meet the following criteria.

Projected area of the building: refers to the projected area of the building on the horizontal plane, and refers to the area enclosed by the outer contour line of the shadow projected vertically.

Assuming that when the sun is at its peak, the area enclosed by the shadow outer contour of the building on the ground is called its horizontal projection area. There is no necessary relationship between the horizontal projection area and the total area of the building.

The projection of a building refers to the shape of a building when viewed from above.

The construction area of a complete house is composed of three parts: the usable area of the house, the wall area of the house, and the balcony construction area of the house. The projection area of the building can be seen as the usable area of the house in the complete set.

The projection area of 1 square is: horizontal projection area 5*6=30 square meters, vertical projection area (5+6)*2*3=66. Assuming that when the sun is at its peak, the area enclosed by the shadow outer contour of the house falling on the ground is called its horizontal projection area.

In fact, the area and construction area on the construction plan of the component are calculated.

If the first, second, and third floors fail, the roof without a roof is not counted. The projection area is to illuminate the object vertically with a light source, and the shadow part is the projection area, which is only one area calculated according to the envelope structure.

Algorithm and definition of projected area

The width of the shape of the object standing on the wall multiplied by the height is the projection area of the object, that is, the length of the object * height, and the projection area can be calculated through such calculations, which is relatively easy to calculate.

The so-called projection area is usually used to calculate the silver tremor area of the house building, that is, the shadow area of the house building projected vertically from top to bottom. This projection includes two ways to throw Zheng Ying, one is forward projection and the other is rear projection. In the front projection, the center line of the projection ray is perpendicular to the plane, while the back projection screen is reversed.