The truss structure should calculate the internal forces and displacements under the load during the usage phase, and should also calculate the indirect effects such as seismic action, temperature changes, support settlement, as well as internal forces and displacements caused by construction and installation loads, based on specific circumstances.
Steel grid structure load and variable load
The loadings on the steel grid structure include: the self-weight of the grid, the gravity of the roof (or floor) materials, the gravity of the suspended ceiling materials, and the gravity of the equipment piping.
The variable loads for steel grid structures include: live loads on the roof (or floor), snow loads (snow loads should not be combined with roof loads simultaneously), wind loads. Due to the high stiffness of steel grid structures and their small natural vibration periods, the influence of wind vibration coefficients can be neglected when calculating wind loads. Dust loads and crane loads (considered when cranes are present in industrial buildings) are also to be taken into account.
