Table Romania 4, 5

Table Romania 4
The “C_w” seismic coefficient for non-structural elements

Type of member	*C_w*	The direction of the seismic load “*S_w*”
Non-structural walls	*k_s*	normal to member surface
Parapets, cantilever walls	3 *k_s*	normal to member surface
Suspended ceilings	*k_s*	normal to member surface
Internal and external ornaments, statues, low towers and chimneys	4 *k_s*	any direction
Cornices and other low importance cantilevers, tanks placed on buildings	2.5 *k_s*	any direction

Table Romania 5

The increasing factors of internal forces for members with stress concentration or reduced ductility

Type of member	Efforts increasing factor
Joints between prefabricated elements with transmission of internal forces through welding	1.5
Brick masonry or reinforced concrete structural walls, except their coupling beams (for shear force analysis)
Floors over ground floor for stiff structures with flexible ground floor
Abutment anchoring and fixing bolts	2.0
Prestressed joints between reinforced concrete prefabricated elements	2.0
Columns at the flexible level of stiff structures (columns of silo unit bottom cross-cut, columns supporting structural walls)	3.0