Latest issuePeculiar Features of Building Footing Oscillation During Local Earthquakes
Authors:
Ph.D.in Engineering Science, Director of the Center for Scientific Research of the Construction Industry, Corresponding Member of the NIA of Kazakhstan and IEA, KazRDICA JSC, Almaty, Republic of Kazakhstan
Vladimir A. Lapin
Yerzhanov S.Е.
Ph.D. in Engineering Science, Adviser to Director General for Science, Corresponding Member of NEA RK and IEA,KazNIISA JSC, Republik of Kazakhstan, Almaty
Daugavet V.
Sector Leader of the Engineering Seismometric Service , KazNIISA JSC, Republik of Kazakhstan, Almaty
Rubric: Theoretical and experimental studies
Annotation:
The stations of the engineering seismometric service of KazNIISA JSC recorded more than 15 lo-cal earthquakes with the foci in Almaty and Almaty region in 2018. Accelerograms recorded on rigid and flexible buildings during 3 sensible earthquakes were selected from the obtained instru-mental records. These are accelerograms recorded in the basement parts of a four-storeyed frame building and an 11-storeyed steel-framed building. In one instance, the instrumental rec-ords registered in the basement of a 17-storeyed building are used. Flexible buildings are locat-ed near tectonic faults. The spectral curves characterizing the frequency content of the seismic effect are built. It has been established that the frequency response characteristics of the foundation composed of soils of the 2nd category by seismic properties are high-frequency with prevailing periods of 0.1-0.20 sec. Resonance phenomena for flexible buildings under the influence of local earthquakes are not observed. Instrumental records are included into the accelerogram database of KazNIISA JSC.