000020253 001__ 20253
000020253 005__ 20170118182405.0
000020253 04107 $$aeng
000020253 046__ $$k2017-01-09
000020253 100__ $$aYu, Haiying
000020253 24500 $$aApplications and Challenges of Strong Motion Instruments in Strong Motion Observation

000020253 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000020253 260__ $$b
000020253 506__ $$arestricted
000020253 520__ $$2eng$$a Strong motion instruments play an important role in Chinese strong motion observation. The historical development and current status of strong motion instruments are presented in this article, and the role of the United States, Japan and China in their development is discussed. Strong motion records from around the world documenting, such typical abnormal waveforms as spikes, asymmetric waveforms, baseline drift, waveform mirroring and waveform duplication) are briefly discussed, even though the causes of such abnormalities have yet to be researched in depth and tests still are needed to help eliminate them. We believe that by studying abnormal waveforms in strong motion records, we can solve the existing problems of instruments and help develop new types of strong motion instruments. Corrections for instrument response errors in force-balance accelerometers with a band range of 0 to 30 Hz are briefly analyzed, and we believe that strong motion records obtained by early digital strong motion instruments are in need of correction. Every high-magnitude earthquake will bring challenges and opportunities for improving strong motion instruments. There is no exception in China. Earthquake prevention and disaster risk reduction became a major priority after the M8.0 Wenchuan earthquake. China has developed a seismic-intensity rapid reporting system and constructed an early warning network, and as a result has a strong need for high-quality strong motion instruments. At the same time, the continuous innovation and diversified development of strong motion observation requires higher-performing instruments that are multifunctional, intelligent, portable and easy to operate. So, strong motion instruments still need to be improved in reliability, timeliness and intelligence. Finally, it is important to keep track of new methods and technology in strong motion observation, and new instruments should be developed to meet China’s current needs.

000020253 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000020253 653__ $$astrong motion observation; strong motion instruments; abnormal waveforms; strong motion records; instrument response errors corrections

000020253 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000020253 720__ $$aYu, Haiying$$iMa, Xinsheng$$iXie, Lili$$iZhang, Tongyu$$iZhou, Baofeng
000020253 8560_ $$ffischerc@itam.cas.cz
000020253 8564_ $$s352641$$uhttps://invenio.itam.cas.cz/record/20253/files/835.pdf$$yOriginal version of the author's contribution as presented on USB, paper 835.
000020253 962__ $$r16048
000020253 980__ $$aPAPER