Explanation of the whole process of steel structure drawings
Drawings play a decisive role in engineering, construction, manufacturing and other fields. They are the basis for guiding production and the language of technical communication. , so no matter which technical field you are in, you must understand the drawings to be better qualified for your job. Drawings in various fields have standards and specifications for each industry. Below, the editor of Han Yi Integrated Housing will teach you how to look at the drawings of steel structures. I hope it can help you.
1. Steel structure diagram
1. Steel structure
Structures connected by steel sections, such as steel beams, steel roof trusses, and steel towers , steel scaffolding, etc.
2. Steel structure drawing
A drawing used to represent the steel structure.
3. Section steel
Section steel is rolled by steel mills according to standard specifications. Its cross-sectional shape and size are fixed, such as: angle steel, I-beam, channel Steel, C-shaped steel, M-shaped steel (patented by Beihai Building Materials Group), H-shaped steel, etc.
Code number and labeling of section steel
2. Connection method of medium-section steel in steel structure
1. Welding
2. Riveting
p>3. Bolt connection
1. Welding
Heat the connected steel at the connection part so that it melts with the welding rod and becomes an inseparable whole after solidification.
Grove weld
Fellet weld
Plug weld
Marking of weld
In the steel structure drawings, the location, form, size and auxiliary requirements of the welds must be clearly marked, and do not be careless.
Drawing and labeling when the welds are not connected
When the welds are not connected, a solid line should be added to the visible welds, and a solid line should be added to the invisible welds. Thin grid lines.
2.? Riveting
Use rivets to connect two or more steel plates together.
Riveting classification
1. Factory connection
2. Field connection
Rivet types
3. Bolts Connection
1. Welding and riveting are both non-detachable connections, and bolted connections are detachable connections
2. Connection methods
Bolts, holes, electric welding Rivet legend
3. Steel beam structure diagram
Overview: Steel beams are commonly used in large and medium-span bridges
Types of steel beams
1. Steel plate beam
2. Steel truss beam
Down-bearing simply supported bolted welded beam
4. Contents of steel beam structure diagram
1. Design outline drawing
2. Node drawing
3. Member drawing
4. Parts drawing
1 .Design outline diagram
2. Node diagram
3. Node structure diagram
4. Assembly of splicing boards and filler boards
5. Three-dimensional view
6. Detailed drawing of gusset plate
7. Rod drawing
8. Parts drawing
5. Steel roof truss Structural drawing
1. Steel roof truss
2. Steel roof truss structural drawing
Roof truss simplified diagram, roof truss details (including node diagrams), and rod details , Detailed drawing of connecting plate.
Roof truss diagram
1. Roof truss diagram is also called roof truss diagram and roof truss rod geometric dimension diagram.
2. Scale: 1:100, 1:200
3. Single line representation, the length of the member is directly noted next to the single line.
Roof truss details
1. Drawings: elevation, upper chord solid auxiliary projection, section section.
2. Ratio: two ratios:
The rod axis adopts a smaller ratio (1:20, 1:15)
Gusset plate, rod , the cross-section adopts a larger ratio (1:10, 1:5)
3. Drawing lines: visible contour line-middle solid line
Invisible contour line-middle dotted line
Bar splicing
Bearing node diagram
Roof node diagram
Summary of this article
Understanding Steel Structural drawings require systematic study of professional knowledge, which cannot be learned and understood in a few days.