Design against Incremental Collapse

2002 ◽  
Vol 86 (16) ◽  
pp. 178-188
Author(s):  
Paul Grundy
Keyword(s):  
1991 ◽  
Vol 117 (6) ◽  
pp. 1815-1833 ◽  
Author(s):  
Sidney A. Guralnick ◽  
Thomas Erber ◽  
Osama Soudan ◽  
Jixing He
Keyword(s):  

1999 ◽  
Vol 66 (1) ◽  
pp. 250-253 ◽  
Author(s):  
P. D. Chinh

The upper bound kinematic method, which is based on a reduced kinematic formulation and involves construction of fictitious elastic moment fields and potential incremental collapse mechanisms, is used to evaluate the dynamic cycle collapse loads for a symmetrically loaded circular plate. The respective nonshakedown curves are constructed, A point load effect is discussed.


Author(s):  
T. E. Kelly

Three buildings relying on column hinge mechanisms for post-elastic energy dissipation were studied using an inelastic dynamic computer program. The structures were an eight storey wall structure with ground storey columns, an eight storey frame with rigid, non-yielding beams, and a single storey frame with rigid, non-yielding beams. Parameters varied were earthquake input, design base shear and strain hardening ratio. All structures exhibited deformations far in excess of deflections under code static loading. The eight storey structures showed a tendency towards incremental collapse from P-delta effects when low, probably realistic, strain hardening ratios were used.


2019 ◽  
Vol 47 (1) ◽  
pp. 3-38
Author(s):  
Oleksandr Melnyk

Abstract The article is a study of anti-government mobilization in the cities of southern and eastern Ukraine in spring 2014. By closely examining the developments that preceded the outbreak of the armed insurrection in the Donbas, the study seeks to elucidate the various factors that precipitated the veritable collapse of the Ukrainian state in parts of the Donetsk and Luhansk regions and its stabilization elsewhere. The article argues that the armed conflict in the Donbas was hardly a predetermined outcome of the Russian government strategy—which was employed also outside the Donbas—but rather a product of a synergetic confluence of several structural and conjunctural factors that were absent or present to a much smaller degree elsewhere. These included the peculiar political and ethno-cultural profile of Donetsk and Luhansk oblasts; a higher degree of the legitimacy crisis of the interim government; the destabilizing effects of the status quo created by the victory of the Euromaidan—not only in terms of the change of Ukraine’s geopolitical orientation and Russia’s apparently compromised interests, but also in terms of the perceived change of status of different ethno-political communities; the proximity of the Russian border, trans-border ethnic politics, and the activities of nationalist groups from Russia; the residual influence of the once-powerful networks associated with clients of the former president Viktor Yanukovych; the relative weakness of organized pro-Ukrainian groups; and last but not least, the incremental collapse of the law enforcement apparatus, which drastically reduced the capacity of Ukrainian authorities.


1962 ◽  
Vol 7 (2) ◽  
pp. 165-181 ◽  
Author(s):  
J.R. Kench ◽  
J. Chamberlain ◽  
A.G. Young

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