Ground Motions and Structures - Earthquake Engineering for Structural Design - page 351

Ground Motions and Structures 351

(a)

(b)
Figure 8.49 Dismountable bolted link concept: (a) For Split K-braced frames (courtesy
of Stratan and Dubina, 2004); (b) For Inverted Y-braced frames
(Mazzolani et al., 2004)

8.5.5 Infilled Frames

It is well known that non-structural elements may provide most of the earthquake
resistance and prevent collapse of relatively flexible moment resisting frames. Infills
were usually classified as non-structural elements and their influence was neglected in
design. In the last period, recognizing the importance of infills, the case of infilled
structures is considered as a system type, in addition to moment resisting frames and
braced frames. There are two main infilled frame types: masonry infilled reinforced
concrete frames and panel infilled steel frames.