In the architectural design drawing, l means beam, ll means continuous beam, ql means ring beam, jl means foundation beam, tl means ladder beam, dl means ground beam, z means column, gz represents the structural column, kz represents the frame column, m represents the door, and c represents the window.

1. Formal architectural design must have the signature of the designer, the signature of the person in charge of the architectural drawings, the signature of the appraiser, the signature of the proofreader, and must be stamped with a seal and a registered professional seal.

2. In architectural design drawings, the length is generally expressed in mm, unless otherwise stated; when looking at the drawings, pay attention to combining the "Description of Building Materials" with other drawings. In the "Description of Construction Materials", if there is a "√" in front of each item, it indicates the method adopted in the design. What is not checked is not the approach adopted in the design.

3. For example, in the architectural design drawing: "c20 reinforced concrete jl (240400) with 4φ16 network φ6@200 hoops." This is interpreted as: the foundation beam of a reinforced concrete structure with a strength of c, 240mm wide, It is 400mm high, equipped with 4 main steel bars with threads of 16cm in diameter, and a rectangular ring of steel bars with a diameter of 6cm every 200mm. (The rectangular ring is about 340--350 mm long and 180mm--190mm wide).

4. For example, in the architectural design drawing: "C20 concrete small column (240240) with 4φ12 hoop] 6＠200." Among them, "]6＠200" is an irregular mark and should be "φ6 @200". Interpreted as: a small beam of reinforced concrete structure with a strength of C20, with a cross-section of 240mm long and 240mm wide, equipped with 4 main steel bars with 12mm diameter threads, and a rectangular network of 6cm diameter steel bars every 200mm apart. The height of the small column depends on the floor height marked on the project minus the height of the ring beam and then plus the thickness of the slab, because the ring beam and the slab are poured together.