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題名 | 校舍隔間磚牆面外耐震性能分析=Out-of-Plane Seismic Behavior of RC Frame with Brick Wall |
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作者 | 江文卿; 郭詩毅; | 書刊名 | 德霖學報 |
卷期 | 24 2010.08[民99.08] |
頁次 | 頁113-132 |
分類號 | 441.571 |
關鍵詞 | 校舍; 現地實驗; 耐震能力; 靜力單向側推; 剪力型房屋; School building; In-situ test; Seismic capacity; Monotonic pushover; Shear building; |
語文 | 中文(Chinese) |
中文摘要 | 許多中小學校舍在921 集集地震中遭受嚴重之損毀,因此學校建築之耐震能力確實是一個重要 之議題。本研究係針對既有校舍建築物進行現地側推試驗,以了解既有校舍之耐震能力。現地實驗 選定花蓮縣新城國中待拆除重建之教室建築物為試體,因校舍建築普遍沿走廊方向為結構弱向,故 校舍現地實驗可採沿走廊單向推垮之方式進行。實驗時施加於構架之側向力參照耐震設計規範的倒 三角形分布,亦即利用千斤頂活塞頭截面積的不同,以2:1 之比例分配於構架之屋頂層及二樓。 反力端則利用剩餘教室結構充當反力支撐,並架設鋼骨斜撐以強化側向強度。本研究之現地側推實 驗發現,校舍試體呈現強梁弱柱之剪力型房屋破壞模式,故採用剪力型房屋之簡化分析來與實驗量 測結果作比較。在計入面外磚牆之貢獻及考慮構件在結構中具有軸力再分配的能力後,分析結果在 強度與韌性方面皆較接近實驗曲線,顯示本研究建議之模型能夠合理評估測試結果。 |
英文摘要 | Many compulsory school buildings in Taiwan suffered severe damages during the 1999 Chi-Chi earthquake, therefore the upgrading of the seismic capacity of school buildings is indeed an important issue. In-situ pushover tests of the existing school buildings were performed to study the seismic capacity of existing school buildings. Reinforced Concrete (RC) school buildings of the Sin-Chen Junior High School (SCJHS; Hualien County), which were scheduled to be demolished were selected as test specimens. The weak direction of a typical school building is along the corridor direction. Therefore, the in-situ pushover tests were performed along the corridor direction. The specimen was subjected to lateral forces distribution of an inverse triangular according to seismic code. This can be achieved by using oil jacks with cylinder-area ratio of 1:2. The reaction was provided by the remaining half of same building reinforced with steel bracings. Test specimens during in-situ test showed the failure pattern of the strong beams and weak columns fitting in the hypothesis of the shear building. Therefore the simplified analysis based on the shear building assumption was used to predict the lateral response. Considering the contribution of the out-of-plane resistance of brick walls and the redistribution of axial loads of columns, the proposed model can have better correlation with the experimental curve. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。