A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Records of earthquake damage seem to show that high-rise buildings of 10 stories or more, have been peculiarly immune to collapse; this has been true even in three historic earthquakes with Richter magnitudes of over 8; sequential damping may provide one reason for this safety bonus; damping, which takes place during each oscillation of column or beam, has been found to increase with increasing force levels; in recent tests, using large deflections, amount of energy absorbed during first half cycle of frame movement was found to be about 90%, which still might increase slightly with increase of input energy.
Records of earthquake damage seem to show that high-rise buildings of 10 stories or more, have been peculiarly immune to collapse; this has been true even in three historic earthquakes with Richter magnitudes of over 8; sequential damping may provide one reason for this safety bonus; damping, which takes place during each oscillation of column or beam, has been found to increase with increasing force levels; in recent tests, using large deflections, amount of energy absorbed during first half cycle of frame movement was found to be about 90%, which still might increase slightly with increase of input energy.
Earthquake damping in building frames
Civ Eng (NY)
Mackintosh, C. (author)
1966
3 pages
Article (Journal)
English
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