Self-weight

The Self-weight mode enables to perform the calculation of loads caused by the self-weight of a pack composed of multiple layers of different materials. This function is implemented in the respective dialog box, the left half of which displays a table containing the general list of materials, and its right half contains a table with the list of selected materials included in the pack.

To specify each layer of the pack, it is necessary to select the group, which the material of the layer belongs to. To do this, select a radio button with the name of the respective group (roofing elements, steel sheeting, thermal insulation, vapor barrier, damp course, fillings and coatings, concrete and mortar, and other). Once the group is selected, the left table will display the list of the materials included in this group. Each line of the table contains the name of a material, the value of its volume weight or unit area weight of the finished structural element, as well as the value of the safety factor for load according to Sec. 2.2 of SNiP, KMK, Sec. 7.2 of SP 20.13330, and Sec. 6.2 of DBN.

The upper button image\west_4.jpg enables to transfer the material from the selected (highlighted) line of the left table to the right (working) table, which will thus contain the description of the whole pack.

If the layer thickness is fixed and can not be modified, the respective line of the table is marked with the dash symbol. Otherwise, double clicking on the desired line of the working table enables you to enter the layer thickness data in the Thickness column.

The composition of the pack defined in the working table can be modified using the Delete and Change buttons. If the pack you have entered is a typical one, it can be saved under any suitable name using the Save pack button. Clicking this button invokes a dialog box where you can specify the pack name.

The saved pack will be added to the Packs list and can be retrieved from this list to the working table with the help of the lower button, image\west_4.jpg. This pack can be supplemented with new layers, or some layers can be removed from it.

Clicking the Calculate button will display the respective values of the load per unit of area caused by the pack self-weight in the Characteristic load and Design load fields (according to SNiP, KMK), or Serviceability load and Ultimate load fields (according to DBN).