Seismic Isolation, Rolling Pendulum Bearing, Floor Isolation System, Characterization, Rolling Resistance, NHERI Lehigh EF
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Description:
Rolling pendulum (RP) isolation bearings are commonly used in seismic isolation systems for the protection of sensitive building contents. We conducted a study at the Natural Hazards Engineering Research Institute (NHERI) Experimental Facility (EF) at Lehigh University, which involved experimental tests of full-scale RP isolation bearings with different surface treatment thicknesses. The specific goals of the study were to characterize the RP bearings and to assess their performance for use in a floor isolation system (FIS) considering coupling with (i) rigid or flexible equipment mounted on the FIS and (ii) the building in which the FIS is installed. The complete study includes: (1) Characterization tests of the RP isolation bearings; (2) Real-time hybrid simulation (RTHS) tests of the RP isolation bearings incorporating (a) FIS-equipment interactions and (b) building-FIS interactions. This data publication corresponds to the characterization tests. The RTHS tests will be published in the coming months as a hybrid simulation and linked to this publication. All the details regarding the experiment and the data organization and naming are in the Data Report. Additional information on the study, along with details on the data processing and validation, is available in Related Work (Covarrubias Vargas, 2021; Covarrubias Vargas et al., 2022). The experimental data published here can be used by others to validate mathematical models of RP bearings or evaluate computer vision algorithms for displacement measurement.
Experiment | Characterization Tests of Rolling Pendulum Isolation Bearings with Different Surface Treatments
Cite This Data:
Harvey, P., B. Covarrubias Vargas, L. Cao, J. Ricles (2022). "Characterization Tests of Rolling Pendulum Isolation Bearings with Different Surface Treatments", in Characterization of Rolling Pendulum Isolation Bearings. DesignSafe-CI. https://doi.org/10.17603/ds2-5je0-5f35
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Author(s)
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Facility
Real-Time Multi-Directional (RTMD) Experimental Facility with Large-Scale Hybrid Simulation Testing Capabilities - LeHigh University
Experiment Type
Characterization
Equipment Type
Small-Scale, Real-Time/Hybrid Capable Servo-Hydraulic Actuator System
Date of Experiment
2020-08-26 ― 2020-09-03
Date Published
2022-11-11
DOI
10.17603/ds2-5je0-5f35
License
Open Data Commons Attribution
Description:
Rolling-pendulum (RP) isolation bearings with different surface treatments were tested under quasi-static, harmonic, and simulated earthquake-induced motions. These tests were used to characterize the behavior of the RP bearings, including the gravitational restoring force and the rolling resistance associated with the elastomeric coatings of different thicknesses. The experimental data from analog sensors and cameras is archived here, as documented in the data report.
Report | Data Report
Description:
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File Name
Data Report
Model Configuration | Experimental Setup
Description:
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File Name
Sensor Information | Analog Sensors, GoPro Camera, and Web Cameras
Description:
(N/A)
File Name
Event | 12_F1-143
Description:
Specimen 12b utilized two balls with the same rolling surfaces (F1-143) as specimen 12, which used only one ball.
File Name
Event | 11_F0-143
Description:
Specimen 11b utilized two balls with the same rolling surfaces (F0-143) as specimen 11, which used only one ball.