應用非線性液流阻尼器於天花板-庫板整合系統之減震控制研究

A Study on Seismic Control of Ceiling-Partition Integrated Systems Using Nonlinear Viscous Fluid Dampers

李昭儀(Zhao-Yi Li)

指導教授 ： 王彥博

國立交通大學/工學院/土木工程系所/碩士(2020年)

摘要

本研究旨在探討應用非線性液流阻尼器於天花板˗庫板系統減震控制之可行性。根據結構動力學原理，本文發展了含非線性阻尼器之懸吊天花板-庫板系統的動力分析理論，以及求解非線性運動方程的數值分析方法。本研究以一座天花板振動台試驗模型為標的進行數值模擬分析，探討不同特性參數之非線性阻尼器的減震性能表現，並與線性阻尼器比較。此外，本文亦針對科技廠無塵室天花板減震工程之實際案例進行評估分析，找出最佳設計參數，並提出阻尼器與天花板、結構連結之整體機構與接合介面之設計，經應力分析確保天花板之結構完整性與阻尼器之功能發揮。根據本文研究結果，確認懸吊天花板-庫板系統以液流阻尼器作減震控制，無論採用線性或非線性阻尼器，都能達到設計目標。當控制效果相當之情況下，非線性阻尼器的最大出力會小於線性阻尼器，因此效能更佳，且地震強度愈大時差異愈為顯著，因此，建議優先採用非線性阻尼器。科技廠天花板減震工程案目前已完成第一座阻尼器反力座安裝，確認本研究提出之設計方案具有現場施工可行性。

關鍵字

高科技產業 ； 天花板 ； 庫板 ； 非線性阻尼器 ； 減震控制

並列摘要

The objective of this study is to investigate the feasibility of using nonlinear viscous fluid dampers for seismic control of the ceiling-partition integrated systems. In this thesis, the dynamic analysis theory of suspension ceiling-partition systems with nonlinear dampers has been developed based on the principles of Dynamics of Structures, along with the numerical method required for solving the nonlinear equation of motion. In this study, a modal structure designed for shaking table tests was considered as the object for numerical simulations to explore the seismic control performance of nonlinear viscous fluid dampers of various parameters. These in turn were compared with those obtained by using linear dampers. Furthermore, a seismic retrofit project of ceiling in the cleanroom of a fab was assessed as well in this thesis. Optimal design of the nonlinear dampers for this particular case was identified, and the mechanism connecting the dampers to both the ceiling and structure was proposed with detailed connection design at the interfaces. Integrity of the ceiling structure was verified via stress analysis to ensure functioning of the dampers as desired. It has been proved that using viscous fluid dampers for seismic control of the ceiling can meet the design goal, regardless of linear or nonlinear dampers. Nevertheless, the nonlinear damper is more efficient in a sense that less control forces are required at equivalent control effectiveness, and the difference is more pronounced as the earthquake becomes more intensive. Therefore, nonlinear dampers will be recommended over the linear ones. Meanwhile, the first set of the reaction frame for the retrofit project has been successfully implemented on site. Feasibility of the proposed design for construction is confirmed.

並列關鍵字

High-tech Industries ； Ceiling ； Nonlinear Viscous Fluid Damper ； Partition Wall ； Seismic Response Control

參考文獻

1. 王彥博，「旺宏五廠Stocker減震方案評估報告書」，國立交通大學土木工程學系，技術報告，民國105年。

2. 王彥博，「科技廠房易損設施之防震技術開發」，科技部補助產學合作研究計畫成果報告，計畫編號MOST 105－2622－E－009－029－CC2, 民國106年10月31日。

3. 王妙琪，「半導體廠自動化倉儲系統之防震控制-客製化液流阻尼器之應用與測試」，國立交通大學土木工程學系，碩士論文，民國106年。

4. Yen-Po Wang, Ging-Huei Huang, Miao-Chi Wang and Ssu-Wen Chen, ”Experimental Verification on Seismic Control of Automated Stocker System by Viscous Dampers,” International Conference of Structural and Civil Engineering, ICSCE 2017, Paper ID: L008, Lyon, France, September 21-23, 2017.

5. Y.P. Wang, J.K. Chen, C.H. Lee, G.H. Huang, M.C. Wang, S.W. Chen, Y.T. Kuan, H.C. Lin, C. Y. Huang , W.H. Liang , W.C. Lin, and H.C. Yu, ”Seismic Protection of Automated Stocker System by Customized Viscous Fluid Dampers,” 20th International Conference on Civil, Structural and Earthquake Engineering, London, UK, April 24-25, 2018.