How to calculate the concentrated force of secondary beam

1. If there is a major potential safety hazard in the equipment before the accident, and it is expected that the accident will happen sooner or later, it will not cause enough attention, and eventually lead to the accident, which is an unsafe behavior of human beings

2. 1. The size of the unloading platform is not given, and the structure is not clear, so a sketch should be uploaded
2. The service load on the unloading platform is not given“ P = (2.04 × Where does "2.00 + 5.60) / 2 = 4.84kn" come from
3.18 channel Wx = 152.20cm3 is it section molus? What's the use of listing inertia distance and radius of gyration? Why not list the weight per meter
4. What does "level" mean by "18 channel notch level"? Where is the fulcrum of 18 channel steel
5. You don't understand what you want!

3. Focus

the secondary beam is laid on the main beam and transmitted to the main beam in the form of concentrated force, so additional hoops or hanging bars are often set at the junction of the primary and secondary beams.

4. This is a concentrated load. Generally, the dead load is only input into the weight of the infilled wall on the beam. The concentrated load of the secondary beam / the uniform load of the slab and the dead weight of the main beam do not need to be considered. It will be calculated automatically

5. Simplify the supports at both ends of the secondary beam into simple supports, and see the load distribution above. If it's symmetrical, it's half on one side; If it is not symmetrical, the simple balance method is used to calculate the bearing reaction
have the opportunity to talk about the knowledge of structural design

6. Professional answers
the secondary beam is just the input of the main beam. PKPM will automatically calculate the concentrated force of the secondary beam on the main beam
you can ask questions.

7. If the secondary beams at both ends of the main beam fall on the center line of the frame column, the load will be transferred to the column directly. It is not necessary to consider when calculating the main girder. If it falls within the clear span of the main girder, it should be considered to add.

8. The reaction force of the support proced by the uniform load on the secondary beam end is the concentrated load acting on the main beam. Therefore, there are two kinds of load effects on the main girder: uniform load and concentrated load. The results of these two kinds of loads can be calculated separately, and then the load effects on the corresponding section can be superimposed.