Skills of recognizing and examining drawings in joint review of engineering drawings

First, be familiar with the functions of the proposed project.

After you get the drawings, first understand what the function of this project is, is it a factory building or an office building? Is it a mall or a dormitory? After understanding the function, think of some basic sizes and decorations. For example, the floor of the bathroom is generally made of ceramic tiles, and the floor elevation of the bathroom and balcony buildings is generally a few centimeters lower; The scale of the workshop must meet the needs of production, especially the needs of equipment installation. Finally, read the architectural description and be familiar with the project decoration.

Second, be familiar with and review the plane dimensions of the project

The construction plan of a building project usually has three aspects. The first dimension is the detail dimension, the second dimension is the axis dimension and the third dimension is the total dimension. Check whether the sum of the first dimension is equal to the second dimension, whether the sum of the second dimension is equal to the third dimension, and pay attention to whether the edge axis is the center line of the wall. The drawing habit in Guangdong Province is that the side axis is the outer line of the external wall. Look at the size of the project plan, first understand the construction plan, then understand the construction plan of this floor, and finally understand the construction drawings of water, electricity and air conditioning installation, equipment technology and secondary decoration, and check whether they are consistent. After being familiar with the size of the apartment, check whether it meets the use requirements, such as checking whether the apartment is convenient to use and whether the lighting and ventilation are good. When reading the dimensions of the next floor plan, check whether there is any inconsistency with the upper floor plan.

Three, familiar with, audit project elevation size

Construction drawings of building projects generally include elevation, profile and stair profile, all of which have information about the elevation dimensions of the project; The elevation of this floor is generally marked on the building plan and construction plan; In the beam table, there is generally beam surface elevation; Basic details and other details are generally marked with elevation. Through these construction drawings, we can master the elevation dimensions of the project. Generally, the facade has three dimensions, the first is the detailed dimensions such as the height of windowsill, doors and windows, the second is the height dimension, and the facade is marked, and the third is the total height. The inspection method is the same as the size of each lane on the inspection plane, that is, whether the sum of the first lane sizes is equal to the second lane size and whether the sum of the second lane sizes is equal to the third lane size. Check whether the elevation of each floor in the elevation view is consistent with that in the building plan, and then check whether the elevation of the building is consistent with that of the building. The elevation of each floor in the construction drawing should not be exactly the same as that of the corresponding floor in the construction drawing, because the floor elevation in the construction drawing is the elevation after the project is completed, and the floor elevation in the construction drawing is only the elevation of the structural surface, excluding the height of the decoration surface. The construction drawing elevation of the same floor should be several centimeters higher than the construction drawing. Special attention should be paid to this point, because in some construction drawings, the construction icon is marked high on the corresponding construction drawing paper. If you don't pay attention, you will make mistakes in the construction.

Familiar with the elevation, mainly check whether the elevation of the top of doors and windows is consistent with the elevation of the bottom of the upper beam; Check whether the horizontal dimension and elevation of the stair tread are wrong, and check whether the vertical clearance size under the ladder beam is greater than 2. 1 m, and whether there is a meeting phenomenon; If there is a terrace on the middle floor, check whether the elevation of the terrace is lower than the indoor level; Check whether the floor of the bathroom and bathroom building is a few centimeters lower, if not, check whether there are measures to prevent overflow; Finally, combined with the installation of water, electricity and air conditioning, equipment technology and secondary decoration construction drawings, check whether the building height meets the functional requirements.

Four, check whether there are mistakes in the construction drawing.

Be familiar with the dimensions of construction projects, and then check whether there are any mistakes in the construction drawings. The main inspection contents are as follows:

1, check whether the slope direction of parapet concrete coping is inward.

2, check whether there is a beam under the brick wall.

3, beam on the structural plane, whether all the reinforcement in the beam table.

4. Check whether the height of the main beam is lower than that of the secondary beam.

For more information about project/service/procurement bidding, and to improve the winning rate, please click on the bottom of official website Customer Service for free consultation:/#/? source=bdzd