Every building is composed of various components, and the main function of each component is also very different. Steel components are now the main components of many building structures, and the steel components used in various parts play different functions.
And the steel structure project is welcomed by the big manufacturing countries. The design of the large bay of the steel structure workshop, the small cross-sectional area of the steel structure, the installation and transportation are convenient, the construction time is shorter than the traditional construction mode, and the utilization rate of funds is greatly improved. and put into use speed.
The construction of a steel structure factory building is composed of several main parts, steel columns, steel beams, steel roof trusses, steel roofs, and walls. It also includes some other parts and steel components. What kind of impact do the commonly used main components of steel structure workshops have on the overall structural quality?
The accuracy of the steel structure factory building component manufacturing specification is the prerequisite for ensuring the overall quality of the steel structure factory building. Therefore, it is necessary to accurately grasp the straightness and distortion of the square steel column, the distance between the connecting hole of the column and the beam to the column bottom plate, and the processing of the connecting hole itself. Accuracy, straightness of roof beams and processing accuracy of column-beam connecting plates, orientation specifications of tie rods on beams and columns or supporting connecting plates relative to beams and columns themselves, orientation specifications of purlin supporting plates, etc.
At present, the middle column of the steel structure workshop is made of purchased H steel processing or plate assembly. If it is processed by off-the-shelf H-shaped steel, the manufacturing accuracy of the column is easy to control; if it is assembled from plate materials, pay attention after assembly and welding. Shaping of steel columns to ensure column straightness and prevent twisting.
Most of the roof beams are herringbone structures, which are generally assembled from 2 or 4 trusses. Roof beams are generally assembled by the manufacturer with plates, and the webs of the beams are generally irregular quadrilaterals. Manufacturers with strong technical skills can accurately grasp the lofting and blanking of webs, while manufacturers with weak technical skills are not sure about webs. However, there are mistakes in the lofting specification. Because the shape specification of the roof beam is related to the tightness of the connection between the beam and the column, the specification of the web directly affects the shape specification of the beam, so it is very important.
In the steel structure factory building structure, the most common main components include steel columns and steel beams, which are a large part of support and load-bearing, and are important components for the composition of the structure. The cross-section form of steel column is divided into solid web column and lattice column. The solid web column has an overall section, the most commonly used is the I-shaped section and the H-shaped section; the section of the lattice column is divided into two limbs or multiple limbs, and the limbs are connected by strips or panels. When the load is large and the column When the body is wider, the amount of steel used is less.
Steel beams, shaped steel beams, and composite beams. Steel beams can be used for crane beams and working platform beams in workshops, floor beams in multi-storey buildings, purlins in roof structures, etc. Shaped steel beams are made of hot-rolled I-beams or channel steels. The processing of shaped steel beams is simple and the cost is relatively low, but the cross-sectional size of the shaped steel is limited by certain specifications. When the load and span are large and the steel section cannot meet the strength, stiffness or stability requirements, the composite beam is used.
Composite beams are welded or riveted by steel plates or section steels. Because riveting is labor-intensive and material-intensive, welding is often the main method. Commonly used welded composite beams are H-shaped cross-sections and box-shaped cross-sections composed of upper and lower flange plates and webs. The latter is more expensive and has more complicated manufacturing processes , but has greater bending rigidity and torsional rigidity, and is suitable for situations where lateral loads and torsional requirements are high or beam height is limited.
The main components of steel structure engineering can be formed by choosing different materials. Different materials also have certain differences in natural performance and quality. Different types of workshops can also be built, such as multi-storey steel structure workshops, light steel structure workshops, For brick-concrete factory buildings and other types of buildings, only by controlling the quality of related components can the installation quality of the overall structure be improved.
Post time: May-09-2023