[Technical Exchange] computer aided drawing standards of a design institute

Computer aided Drawing standard of a design institute

Architectural Design and Research Institute Technical Documents
Computer aided Drawing Standards
(Trial draft)

Contents

I. General provisions
1. Work Objectives
2. Scope of Work
3. Work Style

Ii. Drawing
1. Drawing Specifications
2. Drawing directory
3. drawing depth
4. Drawing font
5. Drawing version and modification mark
7. Drawing format
8. layer and file Interchange Formats
9,
10. Additional instructions

Preface

Since 1995, our computer aided design work has been fully popularized with the attention and vigorous promotion of the school leaders, and its application has reached a certain level. In order to further improve the design level and gradually standardize, standardize, and networking the computer-aided design of our hospital, we have organized the General Office and other designers, this standard is formulated based on the experience, refinement and summarization of computer aided design in our hospital in recent years. In the future, all types of design tasks undertaken by our hospital and Computer Aided plotting will be carried out in accordance with this standard. If the design personnel of the whole hospital find that they need to modify or supplement the information during their specific use, submit the relevant comments and materials to the general office, this standard can be further adjusted and improved in the future.

I. General principles
1. Work Objectives
1.1 standardization-effectively improving the quality of architectural design;
1.2 standardization-improving the efficiency of architectural design;
1.3 networking-facilitating standardized management on the network and sharing of results.

2. Scope of Work
This standard is a unified rule for building caddy drawing, applicable to caddy drawing and software development in the areas related to building engineering and building engineering in our hospital.

3. Work Style
This standard is a unified style of drawing expression of design institutes, and does not advocate personal drawing expression style. The presentation of architectural drawings should be clear, complete, and unified.

Ii. Drawing
1. Drawing Specifications
Engineering drawings must comply with the relevant national architectural drawing standards, and all the expressions on the drawings must be consistent.

2. Drawing directory
The professional drawing directories should be prepared in the following order:
Architectural Major: architectural design description; interior decoration list; architectural construction practice list; architectural positioning diagram; floor plan; vertical chart; profile; stair; part of the plane; architectural details; doors and windows table; doors and windows diagram.
Major in structure: structural design; pile bitmap; Basic diagram; basic details; basement structure diagram; (Civil Air Defense drawing); basement structure diagram; floor structure arrangement; floor reinforcement diagram; A detailed view of beams, columns, panels, and stairs; a detailed view of structural components.
Electrical Major: electrical design description; Main Equipment Material Table; plan; details; system diagram; control circuit diagram. For large projects, directories should be set based on strong electricity, weak current, fire alarm, and intelligent systems.
Major in Water Supply and Drainage: Water Supply and Drainage Design; general diagram; floor plan (bottom-up); detail; water supply, fire fighting, drainage, rainwater system diagram.
HVAC Major: HVAC design description; Main Equipment Material Table, plan; profile; detail; system diagram.
3. drawing depth
In addition to the depth specified by national standards, the engineering drawings must also meet the requirements of the owner for providing the sample image depth and special requirements.
4. Drawing font
In addition to Bidding and special circumstances, the following font files should be used. Do not use the turetype font as much as possible to speed up the display of the image and reduce the image file. The number of fonts in a graphic file must not exceed four. The following font files are standard fonts and can be placed in the fonts directory of CAD software. Romans. shx, romand. shx, bold. shx (文), TXT. shx, simpelx, and st64f. shx (Chinese Character ), ht64f. shx (simhei) and kt64f. shx (Chinese Character ), fs64f. shx (Chinese Character Imitation Song), hztxt. shx (single line for Chinese characters ). The font file is placed on the network server of the organization computer (its specific location is \ server1 \ Software \ Standard \ fonts ).
For Chinese characters, hztxt. shx and hzst. shx are preferred. For Spanish characters, Romans. shx, simplex, and TXT. shx are preferred. All Chinese and English labels should be executed in the following table
Common font table 1
High Aspect Ratio of a Chinese character
Drawing name Chinese characters st64f. shx 10mm 0.8
Description text title Chinese st64f. shx 5.0mm 0.8
Chinese hztxt. shx 3.5mm 0.8
Description: hztxt. shx 3.5mm 0.8
General description Chinese st64f. shx 5.0mm 0.8
Dimensions: simphun X. shx 3.0mm 0.8

Note: The proportion of Chinese and Western text is set to. 7, indicating that the text should generally be on the right side of the drawing. The height is the height after the image is printed.
5. Drawing version and modification mark
5.1 drawing version
The version logo should be used for drawing modification, and the logo should not be used for construction, completion, electricity, water, warm-up, and other serial numbers.
5.1.1 construction drawing version number
The first plot version is 0.
The second graph version is changed to 1.
The third image version is changed to 2.
5.1.2 version number of a non-construction diagram, such as a scheme diagram or approval Diagram
The first graph version is.
The second image version is B.
The third image version is C.
5.2 mark Modification
Drawing modifications can be differentiated by version numbers. Each modification must be marked with a version number, as shown in.
The change notice is still used for simple or single modification.
6. Drawing format
6.1 The Drawing Frame adopts A0, A1, A2, and A3 standards and focuses on A1 drawings. The image box file is placed on the computer network server of the unit (specific location \ server1 \ Software \ Standard \ bord ).
Drawing size and specification table 2
Drawing type drawing width (MM) drawing height (MM) Remarks
A0 1189 841
A_1 841 594
A2 594 420
A3 420 297
A4 297 210 is mainly used for directory, change, modification, etc.

6.2 special needs can be extended by long side 1/8 modulus (according to the unified standard of building drawing ).
6.3 A professional drawing, should not be more than two kinds of format (excluding the A4 format used in the directory and table ).
6.4 drawing ratio
The commonly used drawings are as follows. The same drawing should not contain more than three proportions.
Common proportion table 3
Common proportions :,;,
Available ratio :,

7. layer and file Interchange Formats
7.1 layers are used to organize, manage, and exchange the object data of CAD images and control the screen display and print output of entities. A layer has attributes such as color, line, and status.
7.2 layer organization may adopt different methods based on different purposes, stages, object attributes and objects, but it should be logical and easy to operate. All types of entities should be placed on different layers. For example, in the plan, axis labels and third dimensions should be layered, and the detailed dimensions of doors and window holes should be layered; kitchen and toilet ware and Its labels are separately set layer representation; elevation and other dimensions should also be separated layer representation.
8. Additional instructions
8.1 common legends
In accordance with the unified building Drawing Standards (gbj186), General Drawing Standards (GBJ103-87), the Building Drawing Standards (GBJ104-87) legends.
Table 4
1. masonry
2. Concrete
3. Consolidate Soil
4. Porous Materials
5. Fiber Materials
8.2 line width (unit: mm). All construction drawings are drawn with reference to the pen width listed in table 5.
Drawing line width table 5
Group
Type building diagram structure electrical diagram Water Supply and Drainage HVAC
Coarse line 0.50 0.60 0.55 0.60 0.60
Medium/coarse line 0.25 0.35 0.35 0.40 0.40
Fine Wire 0.15 0.18 0.20 0.20 0.20

When drawing with CAD technology, use color as much as possible to control the width of the drawing pen, and use as few as possible the width of the line (pline) to accelerate the display of the image, reduce the image file size.

8.3 symbols
8.3.1. axis. The Axis and line circles should be drawn with solid lines. The diameter of the circle is 8mm.
8.3.2. tangent 8.3.3. Index symbols. The circle and diameter of index symbols should be drawn in a solid line. The diameter of the circle is 10mm.

8.3.4. Details: the detail symbol is drawn with a thick line with a diameter of 14mm.
8.4 lead
The guide line uses a horizontal line of 0.25 wide lines, and the text description is written above the horizontal line.
8.5 dimension
The size line and the size line are drawn by using fine solid lines, and the end is 2mm in the first place.
The size start and end symbols are drawn with a middle-width line. The tilt direction and the size line are 45 ° clockwise and the length is 2 ~ 3mm.
Dimensions are marked in the following ways:
8.6 elevation
8.7 graph name (10mm in height)
8.8 initial settings of computer drawing building Diagram
Initial settings
Wall setting
Flat window pattern 4-wire wall Width W: 0.50
Flat door pattern fully open with a left wall thickness l: 120
Mark diagonal lines, thick lines, M, right wall thickness, R: 120
Text font definition:
Text Aspect Ratio
Doors and windows A: 2.50 0.8
Labeling B: 2.50 0.8

Note:
1. The image ratio is.
2. To reduce the drawing memory and ensure the standard and consistency of the Drawing Box files, we recommend that you use external reference commands to reference the Drawing Box files.
Method: xref (External Reference)
Attach (ADD): select the image frame file to be referenced.

9. Doors and windows and materials (see the appendix)
10. Naming rules for drawing files
The naming of CAD files should be simple, clear and easy to remember, and easy to exchange data. The design drawings can be named in the order of the design type and the drawing directory, for example, the building is J1, J2 ..., Preliminary Design of C filling, such as jc1, jc2 ...; The structure is G1, G2 ..., Preliminary Design of C filling, such as gc1, GC2 ...; Electrical: E1, E2 ..., Preliminary Design C, such as EC1, EC2 ...; Water Supply and Drainage are S1, S2 ..., Preliminary Design of C filling, such as SC1, SC2 ...; Ventilated for H1, H2 ..., Preliminary Design C filling, such as HC1, hc2... .