實驗代號
Experiment ID | 實驗名稱 | Experiment Name | 地點
Site | 設施
Facility | 實驗類型
Type | 試體材料
Material | 說明 | Description |
| GM03.PT | 後拉式預力鋼鍵補強 | Post-tendon Retrofit | NCREE | Reaction wall & strong floor | Full scale | RC、BRICK | 本實驗探討校舍結構利用後拉式預力鋼棒補強之靜態單向推垮現地試驗與分析。試驗內容主要闡述校舍建物使用預力鋼棒補強工法之過程及說明試體製作、規劃之細節，針對試驗過程各階段之破壞情形、並以補強與原樣試驗試體之結果做耐震效益比較。
試驗結果得知，此預力鋼棒補強設計方法能夠有效傳遞預力，提高建物之抗側力能力，進而明顯提升建物之耐震能力與水準。本補強工法經現地試驗結果驗證為國內低樓層校舍建築補強之經濟有效的可行方案。
本文內容除了提及試驗結果與補強效益外，亦對預力鋼棒補強試體做非線性推垮分析求取容量曲線並進行耐震能力評估。 | The objective of this experiment is to study the effectiveness of school building retrofitted by using post-tensioned rods. An insitu test, monotonic static pushover, was practiced to varyfy the retrofitting effect of post-tensioned rods.
The test results indicated that the retrofitting system of post-tensioned rods can enhance the seismic capability of school building, and it is also a cost-effective retrofitting method for low-rise school buildings. Except for the inaesthetic appearance, there are several advantages of this upgrading technique, such as versatility, fast construction and low cost.
The pushover analysis to evaluate the curve of PGA-roof displacement is also proposed. By the result of analysis, it is found that the capacity curves coincide with the test curves.This paper supplies a reasonable seismic evaluation method of existing school building. |
| GM04.Prototype | 原樣試體 | Prototype | NCREE | Reaction wall & strong floor | Full scale | RC、BRICK | 原樣試體係為二層樓之鋼筋混凝土加強磚造建築物。每一層有二間教室，每間教室有二跨，單側懸臂走廊。 | The two-story building consists of 14 classrooms, with a hallway in the longitudinal direction. The classrooms were constructed in different years but have the same structural dimensions. The building was divided into 4 specimens, each with 2 classrooms. Several classrooms were reserved to act as reaction frames. Before the tests, both sides of classrooms were trimmed to suit the pushover test. |
| GM01.SP | 鋼板包覆補強 | RC frames retrofitted using Epoxy-bonded steel plates | 關廟國小 | Field | Full scale | RC、BRICK、STEEL | 本實驗於一棟老舊 RC 校舍進行結構補強，以構架式鋼板補強方法提昇其耐震能力。而此補強方式是在原結構弱抗震能力之柱梁構架上包覆鋼板，即於校舍平行走廊方向之窗檯柱補強及左右橫梁補強，規劃補強理念是提高柱在平行走廊方向的抗剪能力，以及上下樓層鋼板之連續性。經由靜態單向側推之現地試驗結果顯示，鋼板補強之校舍比未補強校舍的耐震能力，最大強度約提昇了110%，由1444kN提升至3054kN，而抗震消能提昇約2.20倍，顯示其強度與韌性皆明顯上升。此方法不僅施工容易，且不影響結構物之原尺寸及原有功能。於實驗後證明，更確認此補強方式可以提高抗剪能力，所以對於現今的老舊校舍，鋼板補強是一個不錯的補強方式。 | This study presents the results of the experiments and analysis for the aseismatic capability of the existing RC school building which was retrofitted by steel-framing systems. Two specimens which are the prototype and the retrofitted buildings have been tested by monotonic static pushover. The field test results show that the maximum lateral load of the retrofitted building has nearly enhanced 110% as compared to the prototype building. The dissipation of the energy is also 2.20 times bigger than the prototype building. The proposed system is a very strong and ductile strengthening system, and it can provide a large shear capacity. This method also has some advantages such as easy construction and minimum change in the overall size of the structure. |
| GM02.RCJ | 擴柱補強 | Columns retrofitted using RC jacketing | 關廟國小 | Field | Full scale | RC、BRICK | 本研究所呈獻的是經由校舍建築現地靜態單向側推試驗，得知利用RC(reinforced concrete)擴柱補強窗台柱後之成效，其中囊括補強設計與施工細則。由試驗結果顯示，在施工品管完善使得新、舊構材連結良好且力量傳遞連續的前提下，校舍之窗台柱經由 RC 擴柱補強能有效提升強度、韌性及能量消散量等耐震性能，並符合規範需求，且將原樣試體之剪力破壞模式改善為撓剪破壞，為國內中低樓層校舍結構補強中，一經濟有效的可行方案；隨後將試驗試體進行推垮分析及耐震評估，不但得到與試驗結果行為吻合之分析容量曲線，並且建立了一套合理、可靠的耐震評估方法。 | This study presents the effectiveness of school building retrofitted by RC jacketing system at its columns near by windowsills. It includes details of methods of design and construction. The building was tested by monotonic static pushover. The test results show that, if the new material perfectly bonded with old one, the retrofitted building is superior to the prototype in seismic resistance and it meets the requirement of seismic codes. In addition, it improves failure mode of retrofitted columns from shear failure of prototype to flexure-shear failure. It could be one of feasible method on cost and seismic resistance effectiveness for retrofitting low-rise school buildings in Taiwan. The pushover analysis and seismic evaluation of test specimens are also proposed in this study. The capacity curves of pushover analysis not only coincide with the test curves, but the method of seismic evaluation is also reasonable. |