Influencia da Accao Sismica nos Custos de um Edificio (Influence of the Seismic Action on the Costs of a Building)

摘要

In the present work the 'earthquake-resistant elements (columns, core and beams) of a building are designed, for seven levels of seismic action. They are quantified according to the present Portuguese regulation, corresponding to coefficients of seismicity which vary between 0.0 and 1.5. For each design the measurements of the structural elements are taken and, based on the unit prices of the previously adjudicated proposal, the corresponding costs are achieved, as well as the total cost of the building. The evolution of the quantity of the steel indicators, per sq m of the area of the structure and per cu m of concrete in the earthquake-resistant elements is analysed, and it is compared with some available values, together with the indices concerning formwork and concrete.