Stability of the structures

A structure is made up of:

• a Infrastructure which is underground
• a superstructure which is air

The stability of a structure is assured when the efforts, which are:

• the weight of the structure called actual weights
• the equipment of the work (coatings or partitions) called continued loads
• loads coming from the use of the work, called running costs
• efforts due to the wind or snow called climatic loads
• efforts pulled by a seism called seismic loads

are correctly brought back on the infrastructure. The latter has as a role to transmit to the ground the undergone efforts.

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