What wall details and nodes must be drawn in architectural drawing?

1, first of all, it should be clear that the construction drawing is a design drawing used to guide the construction, so all drawings must be drawn with the fundamental purpose that the builder can build a building that meets the design intent according to your drawings, so the drawing principle should be based on clear expression.

Usually, our domestic construction drawings include design description, engineering practice list, general plan, elevation, section, bathroom details, stairs details, wall details, doors and windows details.

Why do you need these drawings? Theoretically, if there are enough drawings to reflect all the information on the vertical section, then we only need to draw the vertical section. But the reality is that one drawing can't cover all the information, and it's not convenient for too large construction workers. Therefore, drawing a construction drawing is actually a process of enlarging the scale and deepening the design.

2. Generally, we set the scale of plane, elevation and section as 1: 100. Under this scale, we can clearly express the axis network of the building, the positioning of the wall, the positioning of doors and windows, the hole, ramp, step awning, the height of the building, the height of doors and windows, the elevation position of various structural parts of the building and so on.

Because the stairs are complex, it is necessary to express the size of each step clearly, so it is necessary to draw them separately and enlarge them to the ratio of 1:50 to express the contents of the plane and section. However, there are all kinds of sanitary ware and drainage in the bathroom that need to be sorted out, and it is necessary to enlarge the plane to 1:50 separately before drawing. Similarly, according to the nature and complexity of the project, it can be partially extracted and enlarged separately when necessary.

3. Generally speaking, the standard practices of roof, floor, ceiling and basement are described in the engineering practice table, while the details of walls and joints need to express the specific practices and local dimensions of various special parts of the building. Therefore, in theory, it is necessary to explain in detail the connection, transition and connection relationship between building materials and different structural parts (such as cornices, gutters, shafts out of the roof, walls, curtain walls, aprons, etc.).

Draw different structural levels, and clearly mark the dimensions, materials and different technical and practical requirements. If necessary, it needs to be expressed in many ways, such as horizontal section and axial measurement. The number of node details depends on the depth of the design. For an extreme example, Foster designed the construction drawing of apple store, with details down to the camera on the ceiling.

About elevation: In theory, the elevation in the construction drawing of architecture specialty is marked by building elevation. Only some places that cannot be clearly expressed by building elevation (such as roof elevation) or the positions that need to be controlled by structural elevation are marked by structural elevation, but it needs to be clearly stated when marking structural elevation.

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