研究生: |
鄭銘瑋 Ming-wei Cheng |
---|---|
論文名稱: |
加強磚造校舍之耐震分析 Seismic Analysis of Reinforced Brick School Building |
指導教授: |
鄭蘩
Van Jeng |
口試委員: |
陳瑞華
Rwey-Hua Cherng 黃慶東 Ching-Tung Huang |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 營建工程系 Department of Civil and Construction Engineering |
論文出版年: | 2007 |
畢業學年度: | 95 |
語文別: | 中文 |
論文頁數: | 140 |
中文關鍵詞: | 磚牆 、等值斜撐 、非線性靜力推覆分析 、面外破壞 、層間變位 、SAP2000 |
外文關鍵詞: | brick wall, equivalent truss, nonlinear static pushover analysis, out-of-plane failure, story drift, SAP2000 |
相關次數: | 點閱:175 下載:4 |
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論 文 摘 要
印尼位於環太平洋地震帶上,地震頻繁,在公元2006年5月27日清晨5點54分位於印尼中爪哇日惹省(Yogyakarta Province)的日惹市附近發生規模為6.3的大地震,造成罹難人數超過5,700人,其加強磚造造之校舍亦有嚴重毀損,本研究利用台灣過去相關經驗對其作耐震補強分析研究。
本研究以分析軟體SAP2000中之Link元素來模擬等值磚牆,並以原結構比較剛性樓版(Diaphragm)探討毀損原因及耐震能力,並對整體構架屋頂以三種不同束制類型進行補強研究。
以下為主要研究成果如下:
1.確認印尼校舍倒塌之主要原因由於屋頂未束制於結構體及磚牆之面外破壞(out-of-plane failure)嚴重導致整體結構系統不良;次要原因為構架材料及施工品管不佳。
2.有剛性屋頂樓版校舍可承受0.13g,應可承受Yogyakarta地震。
3.整體構架三種補強分析以Case6效果最佳,其耐震能力幾乎與剛性樓版(Diaphragm)相同。
ABSTRACT
Indonisia resides on the Pacific Rim and is prone to seismic activity. On May, 27, 2007 a major earthquake of Ritcher Scale 6.3 strikes Yogyakarta Province and causes 5700 fatality. Many reinforced brick school buildings in that area are found to suffer severe damage, this study intend to implement seismic assessment and mitigation investigation on those building based on the previous research results on similar structure at Taiwan.
This study models the brick wall system with the nonlinear link element in SAP2000. The original structure and the same structure with rigid diaphragm are investigated to assess the causes of damage and the maximum seismic resistance capacity of these structures. Finally, three different types of modified structure are adopted for mitigation study.
The major results are:
1.The major cause of the collapse is the improper structure system with the roof system and wall unconstrained. The minor cause is the insufficient strength of the construction material.
2.With rigid diaphragm, the original structure should be able to survive the earthquake up to 0.13g PGA.
3.The case 6 mitigated with anchored roof and bracing has similar earthquake resistance capacity as the rigid diaphragm case, and is the best mitigation choice of the three cases.
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