Where are the common mistakes in the construction paper review?

The first thing to say is that the drawings are different from the site. This is not a drawing review. This is mainly caused by the inconsistency between design and construction or the inconvenience of construction during the construction process with the increase of construction progress. At this time, what we need to do is to see if there are any changes in the designer's design, and then handle some technical contact forms, site visas and other documents with the owner.

Second, the drawing review mainly depends on whether there are obvious errors in the drawings sent by the designer, or whether there are places that cannot be constructed with unknown labels. But don't care about design defects. The following are the places where there are many mistakes:

1. General description of the design. There are often cases where the signs are unclear or missing. Some things can't be found here. Bring it up if necessary.

2, dimensioning. Nowadays, computers are widely used, and many design drawings are copied. Sometimes some sizes are not changed, and there are obvious size errors. Then sometimes the same parts have different sizes on different drawings. There are some distribution sizes that add up to the total size.

3. Concrete model. Sometimes some parts can't find what type of concrete to use.

4. Section marking. In buildings, some beams and other parts are often unmarked and cannot be constructed.

5. Marking of steel bars and components. This is the biggest problem. Steel bars, bolts, etc. It is widely used in architecture and has the most changes. Let's talk about steel bars first: (1) Sometimes the cross section obviously lacks structural steel bars. (2) The rebar has been mislabeled for a long time. (3) The same steel bar has different models or front and rear reinforcement. (4) The shape of each steel bar can't be seen in the detailed drawing of the steel bar, so it is impossible to cut the material. (5) The rebar in the rebar detail drawing is obviously different from the rebar.

Let's talk about bolts and so on. (represented by bolts): the shape, exposed length and exposed length of bolts have been omitted for a long time, or the labels are unknown. Bolts, steel bars and embedded parts are relatively small, so be careful.

6. Then there are many small things in the later decoration, so we should always compare them with the general description of the design to see if there are any mistakes.