000011183 001__ 11183
000011183 005__ 20141205155844.0
000011183 04107 $$aeng
000011183 046__ $$k2008-10-12
000011183 100__ $$aNorman, James A.P.
000011183 24500 $$aDevelopment and Control of a Novel Test Rig for Performing Multiple Support Testing of Structures

000011183 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011183 260__ $$b
000011183 506__ $$arestricted
000011183 520__ $$2eng$$aMultiple support excitation is caused when different ground inputs occur along the length of a bridge. Much research has been carried out on modeling long span bridges with multiple support excitation both numerically and analytically, however there have been few successful experimental models investigating the effect of this type of input motion on large scale bridges. This paper outlines the design and construction of a unique multiple support excitation experimental test bed. The bed comprises 5 single axis shaking tables which are independently controlled by 5 actuators. The shaking tables are steel boxes each mounted on a single 50mm diameter rod. A pair of bearings prevents each table rotating around the horizontal axis, perpendicular to the rail. To prevent rotation of the tables around the rails the actuators are hung below the tables and this keeps the tables stable and upright. To date no significant spurious motions of the tables have been observed. This paper discusses the design of the test rig in detail and also addresses the control issues associated with operating this type of experimental rig where the interaction between the test specimen and the test rig itself can have a detrimental effect on the results of the tests. The results of the testing of MSE on bridges have revealed that multiple support excitation can be a significant factor in the behavior of bridges with moderate spans of 200m.

000011183 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011183 653__ $$a

000011183 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011183 720__ $$aNorman, James A.P.$$iCrewe, A. J.
000011183 8560_ $$ffischerc@itam.cas.cz
000011183 8564_ $$s663950$$uhttps://invenio.itam.cas.cz/record/11183/files/05-02-0051.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-02-0051.
000011183 962__ $$r9324
000011183 980__ $$aPAPER