Steel structure design steel structure workshop installation skills

The design of the steel structure can be carried out with some common software, such as (PKPM), mainly to control the strength, stability and slenderness ratio of the structural components, and the stability of the steel structure is especially important to carry out the overall stability and local stability (that is, the width-thickness ratio or the height-thickness ratio) according to the specification, which should be determined according to the type of plant combined with the steel structure code and the seismic code. For the plant as a whole, the reasonable arrangement of the support system is particularly important, and the out-of-plane stability of the plant is ensured through the support system; During construction, it is necessary to install two rigid frames with support systems first, form a stable system, and then install other rigid frames on this basis, if it is a flat column base before the secondary grouting must be provided with a cushion block at the foot of the column, it is very important to ensure stability for the steel structure.

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For the installation of steel columns, the installation of inter-column supports, the temporary position of steel crane beams, roof beams, roof supports, etc.

The steel structure installation procedure is the installation of steel columns, the installation of inter-column supports, the temporary position of steel crane beams, roof beams, roof supports, steel crane beams, etc.

Because the weight of the steel column is large, the length is large, and it is impossible to make and transport it once, so it adopts the method of segmented production, on-site assembly as a whole and then hoisting, and intends to divide the steel column into two sections. The steel column is transported to the site in two sections: the lower lattice part and the upper H-shaped steel column. The weight of the steel column is about 6 tons, the height in place is about 17 meters, and the 50-ton truck crane can meet the lifting needs, supplemented by a 25-ton truck crane for lifting.

Every step of the construction of the steel structure store is very professional and systematic. Of course, it is reflected in the standard of construction technology, which is to make every construction detail better. In the detailed construction process standards, mastering the key points is also the key to achieving better results in construction.

The weight of the frame columns, beams and other components of the plant is relatively light, and the lifting can be carried out by using NK250 type 25T truck crane. The steel structure hoisting adopts the principle of "first middle, then outside, first column and then beam, first down and then up".

The structural layout principle of the steel structure workshop is as follows: try to make the column network of the building evenly and symmetrically arranged, so that the center of the building and the center of stiffness are in the same position. In this way, the space torsion effect of the plant can be reduced, and the structural design of the building should be concise, symmetrical, and the force transmission should be smooth and clear, so as to prevent the stress concentration of the structure or the structural mutation of the components, resulting in the concave angle and shrinkage phenomenon and the overhanging and adduction caused by excessive vertical changes, and strive to not change or less abrupt change along the vertical stiffness.

If it is a multi-storey factory, this structure has a larger span and fewer columns, a smaller size in the column spacing direction, and more columns. Most of the plant structure is horizontally controlled, which can balance the horizontal and longitudinal seismic capacity, make the design more economical and reasonable, and such a design can make the structure of the steel structure workshop more stable.

The location of the plant is also very important, and it is necessary to avoid building on the cracks in the earth's crust as much as possible, because such a location is usually the most frequent area, and it is easy to cause uneven settlement of the plant. **The expansion joints of the houses in the district are one, when the houses are longer, it is advisable to take the following structural measures and construction measures to reduce the expansion joints and shockproof joints; In the construction, an 800mm and a 1400mm wide post-pouring belt are arranged every 40m, and the position of the post-pouring belt is located in the section where the structure is least affected by the force, and the reinforcement ratio is appropriately improved in the parts of the top floor, the bottom floor, the gable and the wall between the end openings of the inner longitudinal wall that are greatly affected by temperature; Thicken the roof insulation layer or set up an overhead layer to form a ventilated roof.

The multi-storey factory is heavy due to the weight of equipment and goods, and the items need to be transported vertically. Therefore, an elevator should be set up inside the plant, and the stiffness of the reinforced concrete elevator shaft is very large, which will produce eccentric load for the building, so the position of the elevator shaft should be set at the center of gravity position when designing, and should not be set at the corner and end of the building.