The 48 most error prone details of architectural construction drawings must be checked by the owner


Whether it indicates the number of floors

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Only in this way can the error rate be minimized

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Is the column skin flush with the walkway skin? After decoration, the column should not be seen from the corridor to ensure the evacuation width of the corridor

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Does it mean gutter? 7

.

Is the floor elevation marked? Is the floor of the outer corridor, porch, bathroom, toilet, boiling water room and disinfection room with water reduced by 0.01 ~ 0.03m than that of the corresponding floor? At the same time, is the projection line drawn at the threshold of elevation change? 3

.

2

.

Whether the gutter has elevation, and the drainage slope in the gutter is 1%

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10

.

Whether to express the drainage gradient and direction, water dividing line and dividing joint

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Is the outer contour and floor line thickened? 5、 Section: 1

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Line type: a thick line (outside) and a thin line represent the outline of the building

.

Is the elevation dimension complete? 5

.

Whether the room name is expressed

.

Does the evacuation door open in the direction of people flow? When the door opening is 1.2m wider than the past, is it opened according to the width of 0.6-0.9m (especially at the gate)? 7

.

7、 Notes before drawing: 1

.

Is the cornice plane projection consistent with the cornice in the section? 5

.

3

.

Today I will share with you: proofreading method of 48 construction drawings I

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Whether the specification indicates the detail index and detail number, the index symbol shall be indicated in the corresponding plane, elevation or section, and the size of the symbol shall meet the requirements of the drawing specification

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Is the projection of the staircase on the roof expressed? The threshold should be 300 higher than the roof to retain water

.

Is the relationship between floor line and section to wall correct? First, there is a floor line outside the room, then the wall is built, and then the indoor ground is backfilled, so the wall will disconnect the indoor and outdoor horizon, as shown in the figure, is your idea correct? 5

.

There must be at least one staircase on the roof

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Is the elevation of outdoor floor, indoor floor, floor and roof marked? Is there a positioning axis in the wall? 4

.

Does the rain pipe pass through the overhanging corridor? If it passes through, install water pipes along the wall instead of laying rainwater pipes on the side near the railing

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Does it indicate the elevation material? 4

.

(different from the section) 3

.

Whether the absolute elevation of 0.000 is marked

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Is the middle platform marked with elevation? Are stair dimensions fully represented on plans and sections? 8

.

Are the dimensions and font sizes appropriate and unified? 2

.

Whether it indicates the axis and overall dimension of the outer contour

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Is the room name with the same font and height? 10

.

Whether the layout sequence is correct: architectural plan: general plan, floor plan, roof plan, elevation and section

.

6

.

The minimum door opening width of public buildings is 1m

.

Are the three dimension lines equally spaced (100 ~ 70mm), and are the annotations in the same font and height? 4

.

Is the axis of the component to be located marked? Is the axis of the component not located eliminated? 2

.

Are the drawings drawn to scale? 5

.

Canopy elevation

.

Is the positioning axis marked? 4

.

Whether the economic and technical indicators are listed: total land area, total building area, number of parking spaces (office building group should write this item), building density, plot ratio, greening rate (35% ~ 50% required, green space area should be adjusted if not)

.

Is the floor plan of elevator room expressed? 8

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Use a unified frame..

.

5

.

1

.

4

.

12

.

Is it corresponding to the plan? 6

.

Does the canopy mean that? 3

.

The out of control of project cost is often caused by the change and visa in the construction stage

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Whether there is a plan of partial roof (upper roof, staircase roof, elevator room roof) 9

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Are the doors and windows numbered? Are the doors numbered differently according to the opening size, opening mode and structure? 5

.

A circular fire lane with a width of 4m or more and a corner radius of 12m is set around the building

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Are the dimensions and elevation complete? 2

.

Compare the projection with the plan carefully

.

6

.

2

.

8

.

7

.

6

.

Is the axis net of each floor consistent? The number of the axis network of the previous floor should be consistent with that of the next floor, because the columns are aligned from top to bottom, and the column network of each floor should be the same, unless there are columns on the top floor

.

Is it cut to the stairs and reflect the internal changes of the main building space? 2

.

Is there a compass on the first floor plan indicating the orientation of the house? 9

.

2、 Floor plan: the rooms on each floor do not need furniture, but the toilet should be equipped with sanitary ware

.

2

.

Fill legend of the section to

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The wall line cut in the section is thickened, and the floor slab (generally set as 100 mm thick), ladder section and beam are blackened

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Whether the cut wall line is thickened and whether the column is filled

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Is there a running direction mark in the stairwell? The top half of the first floor, the top half of the middle floor, the next half and the top two

.

Is there a floor drain on the floor of a room with water, such as a toilet? Is there any expression of ground aspect? Does the toilet sanitary equipment meet the requirements of the number of users? Is the separation dimension marked? 11

.

Whether roads and greening are arranged

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Is the location axis number of each drawing corresponding? 3

.

Is it marked? 3

.

Therefore, we should do a good job in proofreading and optimization before the construction drawings are produced

.

3、 Roof plan: 1

.

Is there any expression of apron on the first floor plan, outdoor floor elevation, and whether steps or ramps are set at the entrance and exit? The slope of the ramp indicates whether the section symbol represents the correct section position and direction

.

Is the stair size detailed? 6、 Details: 1

.

3

.

The elevation of roof is generally marked with the elevation of structural layer

.

13

.

Are staircases and elevators out of the roof indicated? 5

.

Whether it corresponds to the plan, elevation and section, especially the cornice details that must be drawn must correspond to the roof plan and decoration table

.

Is the projection of the threshold expressed? 7

.

4、 Elevation: 1

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6

.

Are storm drains located in the middle of the drainage area or in the interior corner of the building? Does the spacing of rainwater pipes meet the requirements of practical spacing? (18 ~ 24m) 4

.

If there are local differences in the number of floors, the thin line represents the projection line, and the projection line is not drawn for the staircase protruding from the roof

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The table of doors and windows, the table of decoration and the detailed drawing can be arranged flexibly, and the layout is reasonable

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Construction drawings: general design description, general drawing, floor plan, roof plan, elevation and section

.

Is the line type correct? 4

.

Whether it indicates the relationship with main roads and red lines

.

general layout 1

.

14

.

Each floor should have floor elevation and rest platform elevation

.

Please carefully compare the projection with the section drawing

.

Do you want to write the name of the room? 8

.

The width of doors with large use area, large number of users and large equipment in and out shall be designed according to the specification requirements, and the doors shall be opened separately

.

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