000020117 001__ 20117
000020117 005__ 20170118182355.0
000020117 04107 $$aeng
000020117 046__ $$k2017-01-09
000020117 100__ $$aIskhakov, Iakov
000020117 24500 $$aEvaluation of RC Dome Dynamic Parameters Based on Full-Scale Testing By Vibration Machine

000020117 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000020117 260__ $$b
000020117 506__ $$arestricted
000020117 520__ $$2eng$$aAnalysis of natural vibration periods, modes and corresponding damping ratios of long-span spatial structures can provide fast and reliable indication about their real state. Experimental investigation of such structures under vibration loading can provide the required information about their current dynamic parameters that can be used to calibrate theoretical models, develop appropriate modelling techniques, etc. Sometimes the structural assessment can include non-destructive testing and additionally finite element modeling. Based on the obtained results, proper methods for retrofitting of existing long span spatial structures, damaged by earthquakes, impact and other dynamic excitations can be developed. In this study a spherical RC dome with a 30 m diameter has been investigated experimentally and theoretically. The study was aimed at developing and verifying an accurate theoretical model for assessing dynamic parameters of roofing RC domes. The investigated structure was subjected to dynamic loads, generated by a vibration machine. It allows testing structural dynamic response at various loading intensity levels up to plastic deformations or even local damages. The available experimental results are compared with analytical ones and with those of preliminary finite elements analysis. It is shown that the results, obtained by all methods (experimental, analytical and FE analysis), are very close. The theoretical model that was developed can be recommended for design of roofing RC domes.

000020117 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000020117 653__ $$aRC dome; vibration machine; dynamic parameters; dynamic loading intensity level

000020117 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000020117 720__ $$aIskhakov, Iakov$$iRibakov, Yuri
000020117 8560_ $$ffischerc@itam.cas.cz
000020117 8564_ $$s665184$$uhttps://invenio.itam.cas.cz/record/20117/files/6.pdf$$yOriginal version of the author's contribution as presented on USB, paper 6.
000020117 962__ $$r16048
000020117 980__ $$aPAPER