Description | EC8-DCH | ASCE-SMF |
Restrictions on the use of Cross section | For q higher than four only class 1 sections are permitted to be used | Sections must be compact |
Seismic load reduction factor | q equal to 5αu/α1 | R equal to 8 |
Energy dissipation philosophy (significant inelastic deformation) | Given by ductility class high | Given by special moment resisting frames, and are anticipated to undergo |
Overstrength factor | Obtained from ratio of plastic moment of columns to beams | Restricted to 3 |
Local ductility | Plastic hinge rotation is restricted to 35 mrad | Plastic hinge rotation is restricted to 30 mrad with inter-storey drifts to 0.04 radians |
Strength checks for Beams |
| Only strength checks as per AISC/LRFD are required |
Ratio |
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Strong column weak beam (SCWB) philosophy |
| , Columns should have sufficient flexural strength |
Non-dissipative members such as columns | Math_33##Math_34# | Verification of strength with loads computed from special load combinations having Ωo |
Connections | full strength | full strength |