The main content of the detailed design of steel structure

Main content of the steel structure detailed design

The detailed design refers to the detailed design, which makes the surface of the drawings appear, meets the design and installation requirements of the connection nodes, and finally makes the project smoothly implemented . It includes not only the content of the design, but also the material supply, transportation, installation method and sequence that the building contractor is concerned about, and partly assumes the role of engineering consulting.

Main content of detailed design

(1) Simulation analysis of the whole construction process

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For a long time, simulation analysis of the entire construction process has been used in the construction of large bridges and hydropower buildings. With the increase of large-scale civil engineering, construction simulation has gradually become an indispensable part of large-scale complex projects.

(2) Structural design optimization

In the simulation modeling analysis, the original structural design calculation model and the consideration of the entire construction The calculation model of the process is the same, although the final state is the same, but the stress deformation caused by the construction support or the construction temperature during the construction process. Stresses generated by members and nodes during construction do not disappear as the structural geometry is restored to the design state, and are usually localized. The structure is kept separately, which affects the safety of the structure during its service life.

(3) Node deepening

The connecting joints of ordinary steel structures are mainly columns Foot joints, bracing joints, beam-column joints, beam-to-beam joints, truss chord web joints, bolted ball joints, welded spherical joints, steel pipe intersecting joints, multi-member intersecting cast steel joints, and prestressed steel structures including Pull joints, diagonal pull through joints, etc. The design of the above-mentioned various joints belongs to the scope of construction drawings. The main content of the node deepening is to check the unspecified nodes in the drawings by means of welding strength, bolt group, on-site node connection calculation, node design feasibility check, complex node space lofting and other methods according to the design principles of construction drawings.

(4) Parts installation drawings

Installation drawings are used to guide on-site installation, positioning and connection. After the components are processed, the main task of the installation diagram is to install each component in the correct place and connect it in the correct way.

(5) Parts processing drawings

Parts processing drawings are factory drawings, the basis of factory processing, and also Basis for part acceptance. Parts processing drawing can be divided into part drawing and part drawing.

With the development of CNC machine tools and related control software, part drawings are gradually replaced by computer automatic stakeout. At present, cross wire cutting has basically achieved paperless production and ordinary steel structure production. Domestic advanced processing enterprises have gradually developed to the direction of computer automatic cutting, cutting and processing.

(6) Quantitative analysis

The material table is easy to ignore in the part drawing. But it is an important part of the depth detailing, it contains the number of parts, parts, bolts, and the corresponding size, quantity, size, weight and material information, which is very helpful to understand the drawing correctly and can be easily Get the accurate information you need for purchasing. By summarizing and classifying these material tables, material procurement plans and installation plans can be quickly formulated, which provides great convenience for project management.