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Importance coefficient for seismic design Ci

Values of importance coefficient for seismic design Ci (Tbl. 1.0.4 from JTJ 004-89):

The importance of the motorway

Important coefficient for seismic design Ci

Important Highway and A class motorway

1.7

Highway and A class motorway or important B class motorway

1.3

B class motorway or important C class motorway

1.0

C class motorway or important D class motorway

0.6

Values of importance coefficient for seismic design Ci (Tbl. 1.0.4 from JTG TB02-01-2008):

Importance of the bridge

E1 seismic effect

E2 seismic effect

A class

1.0

1.7

B class

0.43 (0.5)

1.3 (1.7)

C class

0.34

1.0

D class

0.23

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