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ETA_12-0150_BBV_System_EW_L7_to_L31_2018-06-20.pdf
national regulations. 1.3.5. Concrete strength At the time of transmission of the full prestressing force the mean concrete strength of the normal weight concrete in the anchor zone shall be at least fcmj,cube or fcmj,cyl according the Annexes 5, 6 and 7. The mean concrete strength shall be verified by [...] mm), which shall to be stored under the same conditions as the concrete member, with the individual values of specimen not differing more than 5%. For partial prestressing with 30% of the full prestressing the minimum value of the concrete compressive strength to be provide is 0.5 fcmj,cube or 0.5 fcmj [...] meter. 1.3.3. Prestressing force Prestressing and over-tensioning forces are specified in the respective national provisions. The maximum force P0 applied to a tendon shall not exceed the force P0,max = 0.9 Ap fp0,1k laid down in Table 2 (150mm²). The value of the initial prestressing force Pm0 applied[...]