Rolling-ball rubber-layer isolators (Record no. 67231)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 01600nam a2200157Ia 4500 |
| 100 ## - MAIN ENTRY--AUTHOR NAME | |
| Personal name | Muhr A H |
| 245 #0 - TITLE STATEMENT | |
| Title | Rolling-ball rubber-layer isolators |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Name of publisher | Journal of Natural Rubber Research |
| Year of publication | 1997 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Number of Pages | 199-214 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc | A system has been developed for seismic isolation of light structures, with no restriction as to choice of deflection capacity, damping or period. It comprises: isolators consisting of balls rolling between tracks; damping provided by layers of dissipative material, such as rubber, bonded to the tracks and hence integral with the isolators; separate springs to provide a restoring force. The use of rubber layers to provide rolling resistance permits a very wide choice of effective damping level, and the rolling resistance can easily be arranged to be a preset function of displacement. The design of the isolators is thus more versatile than for sliding isolators, which are otherwise similar in concept. Experimental results are presented for the steady rolling resistance as a function of load, ball radius, rubber thickness, rubber nature and rolling velocity. The peak in horizontal force required to start the balls rolling depends on the length of time for which the load is applied before rolling starts as well as on the above parameters. This peak in force could be beneficial in providing resistance to wind loads, but if too high could prevent the isolation system operating in an earthquake. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Rubber-layer isolates |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Sulong M |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Thomas A G |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Journals |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Serial Enumeration / chronology | Koha item type |
|---|---|---|---|---|---|---|---|---|---|
| Journals | RRII Library | RRII Library | Rubber chemistry | 17/12/2021 | Volume 12, Issue 4 | Journals |