|
||
|
|
||
There are different requirements to maximal crack widths and decompression check for bridges.
The maximal crack widths are determined according to chapter 7.3.1(105) from EN 1992-2. The values are stored in Concrete > SLS > General. There are changes for nonprestressed and prestressed concrete towards EN 1992-1-1.
When you click on three dot button, then the following table appears for Standard EN 1992-2.
The following tables describe the changes for particular NAs which have been already implemented.
Irish I.S – table NA.2
Finnish SFS NA
Dutch NEN NA
Austrian ÖNORM NA
Swedish NA
The values are dependent on the design working life
Similarly to maximal crack width, there are also changes to calculation of decompression check. Required perpendicular distance from the edge of the prestressing strand or duct to the neutral axis where the concrete has to be in compression is changed according to chapter 7.3.1(105) from EN 1992-2.
|
NA |
Value [mm] |
|---|---|
|
Standard NA |
100 |
|
Czech ČSN NA |
the whole CSS in compression |
|
Slovak STN NA |
the whole CSS in compression |
|
Irish I.S. NA |
the whole CSS in compression |
|
Austrian ÖNORM NA |
the whole CSS in compression |
When the whole CSS should be in compression then the value z_dec is not visible at all in national annex.
