期刊
JOURNAL OF STRUCTURAL ENGINEERING
卷 136, 期 12, 页码 1574-1584出版社
ASCE-AMER SOC CIVIL ENGINEERS
DOI: 10.1061/(ASCE)ST.1943-541X.0000255
关键词
Data processing; Displacement; Acceleration; Sensors; Buildings; Instrumentation; Drift
资金
- Center for Embedded Networked Sensing (CENS) under NSF [CCR-0120778]
- NSF [CMMI-0402490]
Interstory drift, the relative translational displacement between two consecutive floors, is an important engineering demand parameter and indicator of structural performance. The structural engineering community would benefit well from accurate measurements of interstory drift, especially where structures undergo inelastic deformation. Unfortunately, the most common method for obtaining interstory drift, double integration of measured acceleration, is problematic. Several issues associated with this method (e.g., signal processing steps and sparse instrumentation) are illustrated using data from shake table studies and two extensively instrumented buildings. Some alternative contact and noncontact methods for obtaining interstory drift are then presented.
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