花蓮縣新城國中校舍結構現地靜態側推實驗研究

In Situ Pushover Test of School Building Structure of Sin-Chen Junior High School in Hualien County

江文卿(Wen-Ching Jaung) ； 邱聰智(Tsung-Chih Chiou) ； 杜怡萱(Yi-Hsuan Tu) ； 黃世建(Shyh-Jiann Hwang)

《中國土木水利工程學刊》 20卷4期 (2008/12) Pp. 495-507

https://doi.org/10.6652/JoCICHE.200812_20(4).0004

摘要

本研究係針對既有校舍建築物進行現地側推試驗，主要內容有校舍現地側推實驗之測試佈置、實驗方法、側推曲線、破壞模式與材料強度取樣實驗。時間從2005年1月20日開始至1月29日結束，實驗以花蓮縣新城國中待拆除重建之教室建築物為試體。因校舍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，其反力端除了可利用剩餘教室結構充當反力支撐外並可架設鋼骨斜撐以強化側向強度。
經由側推實驗發現，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理論分析來與實驗量測結果作比較；分析結果顯示計算值明顯低估結構之強度與韌性，其因可能與忽略構件在結構中具有軸力再分配的能力、面外磚牆參與結構反應之貢獻、剪力型房屋之剛性假設或基礎轉動等因素有關，此皆有待後續相關研究予以釐清。

關鍵字

校舍 ； 現地實驗 ； 耐震能力 ； 側推 ； 剪力型房屋

並列摘要

Many low-rise school buildings in Taiwan suffered severe damages during the Chi-Chi Earthquake, and these buildings revealed the poor capacity of earthquake resistance. How to estimate the seismic capacity of existing school building is an important issue. Therefore, an in-situ pushover test of the existing school buildings in the Sin-Chen Junior High School was carried out. The available pushover analysis can be calibrated directly by an in-situ pushover test. The weak direction of a typical school building is along the direction of corridor. Therefore, the in-situ pushover test was performed along the corridor direction, and reaction was provided by the remaining half of same building reinforced with steel bracings. The pushover test of school building of the Sin-Chen Junior High School was conducted by the National Center for Research on Earthquake Engineering and the Dahan Institute of Technology. Test was carried out from January 20 to 29 of 2005. This paper reports the test setup, loading procedure, instrumentation and test results. Simplified analysis based on shear building assumption is also presented.

並列關鍵字

school building ； in-situ test ； seismic capacity ； pushover ； shear building