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The connections of different members of steel structures, which are composed of tensile, bending and compressive members, are carried out in a variety of ways, one of which is the connection of the column patch, which we will continue to thoroughly investigate.
Steel structures are usually constructed in several floors. The length of the rolled smuds for the columns is relatively limited. Engineers obtain different sections for the construction of columns by considering the load and opening between the columns as well as the way the side columns are placed.
In each floor, sometimes the dimensions of the column cross section are different from other classes, so when fitting sections to elongate the columns, the utenthering accuracy and skill should be used .
1. In all porter or non-bearing columns, the distance between the patch seam and the wing of the column should not be less than 1200 mm.
2.If our building was half-storey, the distance between the seam site and the column wing is a maximum of 600 mm.
3. The proper distance for patching the columns when removing the columns from the floor is at least 90 cm or in other words one third of the height of the ceiling.
1.Limited length of steel profiles used to make columns
2.Limited executive facilities
3.Different column sections in different parts of the building
In order to execute the patch of columns firstly before they are applied the initial columns, in the first step, the initial columns will weld wings and souls. These wings can be one or two depending on the type of column user. These wings are usually welded horizontally or flatly.
In the second step, on the columns, the patch sheets are welded in different aspects.
In the third step, to connect the columns of the second stage to the initial columns of the first stage, first, the surface of the two columns are well gonya and flattened with special stones so that the two columns are completely in contact with each other. Now, we should note that if the profiles used in the two columns are not the same, we will compensate for this difference in the score and degree of the columns by placing the filler plates at the beginning of the upper column. Column patches usually have to be selected thick in order to withstand the pressures.
In the final step, the two columns are connected to each other with a thick column patch .
1. Note that the dimensions of the two silhouons that are supposed to be connected to each other are equal to each other, if not equal, we should put a pressure dividing plate horizontally between the two silhouons.
2.Before using the column patch, all its dimensions must be designed and the necessary calculations should be done on it.
3. The use of column patches should be completely executable from the maps.
4. To improve the quality of work, it is better to use aligner.
5. In order to access the welding site more easily and appropriately, we need to perform the necessary bracings.
6.The thickness of the column patch should be high so that it does not break or any bending and deformation.
Ahan Pouya with more than a decade of best-selling experience, adheres to professional and ethical principles in the field of selling and buying at inside and outside the borders of Iran, helping you in the steel industry.
