## Water Testing State 

$_{-}$ 2.4 a: In this state the structures shall be assumed empty 

$_{-}$ 2.4 b: In this state the structures shall be assumed full 

$_{-}$ 2.4 c: Different load cases and combinations. 

Load Combination 3.1 (water testing of liquid-retaining structures): 

Even though the crack widths normally are calculated in the serviceability limit state only, the max- imum allowed crack width in the state of testing structures for water tightness is 0.20 mm. In this state the structures should be assumed filled with water to a level of 70% of the height of the nor- mal working level only. Pressure from surrounding soil or ground water must not be taken into ac- count. 

Relaxation of stressing steel and frictional losses shall be taken into consideration in the design. 

The load combinations should be also arranged for building types of structures in accordance with requirements of load combinations in TS 500. 

## 6.5.5 Calculations 

The Contractor has the full responsibility for the structural design calculations. 

All acting forces should be calculated based upon the theory of elasticity wherever possible. An ap- proximate assumption of the load distribution is allowed if realistic only. Loads which support the structures should be stipulated with low values. 

