题名: |
Simulations of a Variable Friction Device for Multihazard Mitigation |
其他题名: |
Agrawal,A.K.,and Yang,J.N.(2000)."Semiactive control strategies for buildings subject to near field earthquakes."SPIE's 7th Annual Int.Symp.on Smart Structures and Materials,International Society for Optics and Photonics,Newport Beach,CA,359–370. |
正文语种: |
英文 |
作者: |
Liang Cao |
关键词: |
Multihazard;Multiple hazard;Variable friction;Semiactive device;Supplemental damping;Structural control;Modified friction device |
摘要: |
This paper investigates the performance of a novel semiactive damping device at mitigating nonsimultaneous multihazard loads. The device, termed modified friction device (MFD), has been previously proposed by the authors. It consists of a variable friction system based on automotive drum brake technology. The device has been demonstrated in a laboratory environment, and its dynamic behavior has been modeled. This model is used to conduct numerical simulations on two representative structures, one short building located in Japan and the other tall building located in Boston, MA. Simulated hazards include wind, blast, and seismic loads. Various control cases are considered, including semiactive control under five different sets of control weights, and passive viscous and passive friction to benchmark performance. Results show that the semiactive control cases outperforms all of the other cases for the vast majority of hazards and performance indices, provided that the right control weights are utilized. |
出版年: |
2016 |
论文唯一标识: |
P-26Y2016V142N12030 |
英文栏目名称: |
TECHNICAL PAPERS |
doi: |
10.1061/(ASCE)ST.1943-541X.0001580 |
期刊名称: |
Journal of Structural Engineering |
拼音刊名(出版物代码): |
P-26 |
卷: |
142 |
期: |
12 |
页码: |
341-354 |