[en] Both 1300 MW units of Nuclear power plant Iran 1 and 2 will be built in a zone of high seismic risk near Bushehr at the Persian Golf. The turbine building does not belong to the class 1 buildings (safety-related parts), but the customer wanted a dimensioning against operating basis earthquake (OBE). Due to these high seismic forces, an alteration of structure was necessary and therefore KWU's standard construction couldn't be adopted. A dynamic modal analysis using the response spectrum method for ground acceleration of 0.1 g was carried out and the resulting maximum base shear forces were compared with SEAOC-code. Structural elements with high reinforcement ratios were economically designed using 50 mm diameter bars with threaded rips (GEWI-Steel d sub(e) = 50mm). (Author)

[en] A numerical method to calculate the damage caused to concrete structures by surface charges is presented. The effect of the detonation on the concrete has been modelled in the case of high explosives, positioned and detonated on the surface of a concrete structure. ((orig.))