Study on the upgrading of traditional factory buildings using viscous dampers.

台灣傳統產業廠房轉型與升級引進新式設備時，需重新評估結構耐震能力，以免設備受損。本研究以一實際傳統工廠為升級研究對象。加裝液流黏性阻尼器，降低地震下樓版加速度，嘗試滿足新機具之操作需求。 模擬廠房結構之受震反應，乃採用Etabs軟體作歷時分析，除尋找阻尼器最佳的裝設方式外；並比較不同阻尼器之作用，以提出較佳之改良方法。 結果顯示，將廠房1、2樓外牆跨間裝滿非線性阻尼器後，結構可滿足受震反應，然而裝設數量極大，卻不符合經濟效益。檢討本案例，屬樓層數較低之短週期建築，建議應配合採用機具之隔減震設施，以達較佳之效果。Transformation and upgrading are crucial in keeping global competition for traditional industries. To use existing factories while changing the machinery is a possible tactics. However, the building needs to be modified to meet strict demands of the precision equipments against seismic environment under earthquakes. In this study, installation of fluid viscous dampers is applied and studied as upgrade strategy for a traditional factory in Taichung . The objective is to reduce acceleration response of each floor to meet the operational requirements of the new production lines and the labs. ETABS software is used for the linear and non-linear time series analysis to simulate the seismic responses of the structure for several types and arrangements dampers. In this case study, the building low and has short period. Results show that if nonlinear dampers are fully installed in every bay of the 1st and 2nd level, the structural may meet the requirement. The great number of dampers to be installed is too expensive and beyond economical consideration. It is therefore suggested to use machinery foundation isolation techniques as a feasible option.摘要....................................I Abstract...............................II 目錄...................................III 表目錄...................................V 圖目錄.................................VII 第一章 緒論.............................1 第二章 文獻回顧..........................3 2.1傳統產業與高科技產業.................3 2.2傳統產業與高科技產業廠房結構特性比較....5 2.3傳統廠房升級........................6 2.4改善傳統工廠廠房震動行為之方法..........7 2.5被動消能元件........................10 第三章 結構分析方法.........................13 3.1耐震設計基本原則.....................13 3.2靜力分析法..........................15 3.2.1基本原理......................15 3.2.2靜力分析法之特性與使用限制........17 3.3動力分析方法.........................19 3.3.1反應譜分析法...................20 3.3.1.1阻尼比修正係數............21 3.3.1.2多振態反應譜疊加..........22 3.3.2歷時分析法.....................22 3.4液態黏性阻尼器........................23 3.5分析軟體............................24 3.6分析方法總結.........................25 3.7例題演算............................26 第四章 實際案例分析..........................30 4.1 廠房介紹...........................30 4.2廠房模型與假設條件限制.................31 4.3廠房結構分析基本資料..................31 4.4初步分析與改進策略....................33 4.4.1地震紀錄之選擇與調整............34 4.4.2裝設液流黏性阻尼器..............34 4.4.3初步分析結果...................35 4.4.4實驗步驟......................36 4.5分析結果與討論.......................36 第五章 結論與建議............................41 參考文獻...................................4