Axis numbering in building construction drawings

Figure 1 is a conventional axis marking method, which is convenient to find the axis and not easy to miss.

Figure 2 also meets the specification requirements, and is mainly used for adding axes, such as adding new axes after existing axes in reconstruction and expansion projects, or adding axes when drawings are changed.

In new engineering drawings, we should try to avoid using split axes for three reasons:

1, easy to see and easy to leak. It is difficult for designers and builders of related disciplines to realize that there is 11axis between1axis and 2 axis.

2, communication is inconvenient. When telephone communication is needed, "2 axis" is of course simpler than "65438+ 1 axis".

3. it is not necessary. The arrangement of axes is usually determined according to structural members-load-bearing columns and walls, while non-load-bearing walls (such as light partition walls in toilets) have no axes and are not divided into primary and secondary axes, so all axes are necessary.

By the way, it is common and permissible that the central axis of the drawing is not vertical in architectural design, which can make the drawing clearer and neater. However, this is not the reason for setting the number of axes. I suggest that you arrange the axis as much as possible in the early stage of design work to avoid adding the axis temporarily.