Explanatory note calculation of steel beam cage

the explanatory note calculation of a steel frame cage Working examples.................................................................................1 1 Example of calculation of the steel frame cage located in the building............................................................... 1 1.1 Development of the constructive scheme and sbornagruzok.................................... 1 1.2 Continuous influences.................................................................. 2 1.2.1 Variables of influence..................................................................3 1.2.2 Limit state on bearing capacity (calculation for the first limit state).......................................... 3 1.2.3 Check of section of a beam...................................................................4 1.2.4 Classification of cross section..................................................7 1.2.5 Check of bearing capacity of section of a beam on shift...........................8 1.2.6 Check of local loss of stability of a wall.....................................8 1.2.7 Check of bearing capacity on a bend............................................................9 1.2.8 Check of loss of stability..........................................................8 1.2.9 Calculation for operational suitability (on the second limit state)................................................................ 9 1.3 Calculation of the main beam......................................................................10 1.3.1 Definition of loads of the main beam........................................... 10 1.3.2 Private coefficients of resistance............................................. 10 1.3.3 Check of section of the main beam........................................................10 1.3.4 Classification of cross section..................................................11 1.3.5 Check of bearing capacity of section of a beam on a cut...........................12 1.3.6 Check of local loss of stability of a wall....................................13 1.3.7 Check of bearing capacity of a beam on a bend.....................................13 1.3.8 Check of stability of a beam in the flexural and tortional Determination of Decreasing Coefficient of Stability form...................13 to the priizgibno-tortional form.........................................................14 1.3.9 Definition of a Limit Condition of Operational Suitability (calculation of the main beam for the second limit state)..................................... 16 1.4 Calculation of a column............................................................................ 16 1.4.1 Collecting loads of a column...............................................................17 1.4.3 Check section of a column.............................................................17 1.4.4 Classification of cross section of a column.................................... 18 1.4.5. Determination of rated lengths of a column.............................................................19 1.4.6. Check of durability of cross section of a column.......................................19 1.4.7. Check of column load capacity by stability..................... 20