000			01939 a a2200265 04500
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020			_aISNN 1520295X
082	0		_a624.1762 _bW175s
100	4	0	_aWarn, Gordon P. _914525
245	0		_aA study of the coupled horizontal-vertical behavior of elastomeric and lead-rubber seismic isolation bearings / _cGordon P. Warn and Andrew S. Whittaker
300			_a1 v.
500	4		_aIncluye 1 CD
504	4		_aIncluye bibliografía p. 219
520	4		_aThis report presents an analytical and experimental investigation of the coupled horizontal-vertical response of elastomeric and lead-rubber bearings focusing on the influence of lateral displacement on the vertical stiffness. Component testing was performed with reduced scale low-damping rubber (LDR) and lead-rubber (LR) bearings to determine the vertical stiffness at various lateral offsets. The numerical studies included finite element (FE) analysis of the reduced scale LDR bearing. The results of the experimental and FE investigations were used to evaluate three analytical formulations to predict the vertical stiffness at a given lateral displacement. The results of simulations performed with three components of excitation were used to evaluate an equivalent linear static (ELS) procedure for the estimation of the vertical load due to the vertical ground shaking. References, tables, and figures are included _athe four accompanying appendices can be found in PDF on an accompanying CD-ROM
650			_aDISEÑO DE CONSTRUCCIONES ANTISISMICAS _942233
650			_aESFUERZOS Y DEFORMACIONES _942234
650			_aESTRUCTURAS ANTISISMICAS _93637
650			_aAMORTIGUACION (MECANICA) _942235
650			_aELASTOMEROS _942236
650			_aINGENIERIA SISMICA _91147
700	4	0	_aWhittaker, Andrew S. _942237
942			_2ddc _cBK
999			_c11100 _d11100