Experimental and Analytical Study on Multiaxial Hysteresis Behavior of Lead Rubber Bearings
碩士 === 國立臺灣科技大學 === 營建工程系 === 104 === In existing study for hysteresis behavior of lead-rubber bearings (LRB), the bearings have been typically subjected to cyclic unilateral loading. In this study, non-proportional loading paths including circular orbit and square orbit is schemed to investigate th...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
2016
|
| Online Access: | http://ndltd.ncl.edu.tw/handle/40024643192820912948 |
| Summary: | 碩士 === 國立臺灣科技大學 === 營建工程系 === 104 === In existing study for hysteresis behavior of lead-rubber bearings (LRB), the bearings have been typically subjected to cyclic unilateral loading. In this study, non-proportional loading paths including circular orbit and square orbit is schemed to investigate the cyclic hysteresis of the bearing. Through the comparison between the results under different test conditions, the torsional coupling effect induced by non-proportional loading paths is less significant compared with that to high damping rubber bearings (HDRB) on bearing hysteresis behavior.
Three constitutive models implemented with the plane vector concept are employed to correlate the analytical results with the experimental results. With the decent agreement between the measurement and simulation, it is concluded that the extended mathematical model is more accurate and applicable for capturing the bilateral hysteresis behavior of LRB. In addition, hysteresis dissipation capacity of LRB is obviously decayed after several shaking table tests.
|
|---|