縮尺鋼筋混凝土結構之構件測試與比較

COMPONENT TEST AND COMPARISON OF REDUCED-SCALE REINFORCED CONCRETE STRUCTURE

10.6652/JoCICHE.202304_35(2).0009

沈文成(Wen-Cheng Shen)；蕭輔沛(Fu-Pei Hsiao)；李翼安(Yi-An Li)；翁樸文(Pu-Wen Weng)

縮尺試體 ； 鋼筋混凝土 ； 橫箍柱 ； 梁柱接頭 ； reduced-scale structure ； reinforced concrete ； tied column ； beam-column joint

中國土木水利工程學刊

35卷2期（2023 / 04 / 01）

201 - 209

繁體中文;英文

臺灣近幾年發生之地震造成多棟中高樓層鋼筋混凝土建築物受損，甚至倒塌。震後實地勘查發現，倒塌建築物存在軟弱底層之問題。為探討前述問題，國家地震工程研究中心參考臺灣早期興建住商混合住宅，設計一縮尺立體構架試體，利用長衝程高速度地震振動台設備，模擬斷層錯動對於存有軟弱底層之中高樓層鋼筋混凝土建築物受震反應。本研究以相同於縮尺立體構架試體之設計細節，製作二座橫箍柱試體與二座梁柱接頭構件試體，並進行水平反覆載重測試。經由測試得到側向載重位移關係曲線，可提供近斷層振動台測試之國際分析模擬競賽所需重要資訊，更能於執行此大型縮尺立體構架試體測試前，掌握縮尺立體構架試體可能之破壞機制，對於振動台測試結果之預測亦有莫大幫助。

In the past years, two powerful earthquakes stuck Taiwan seriously in 2016 and 2018, respectively. These two earthquakes caused several mid- to high-rise reinforced concrete (RC) buildings to severely damaged or collapsed. The earthquake reconnaissance investigations show that one common characteristic in this collapsed buildings - soft stories. It is necessary to pay more attention to the issue and to find the solution as soon as possible. As a result, the reduced-scale RC structure was designed and fabricated to evaluate its seismic behavior using the high performance shaking table at the NCREE Tainan laboratory. In this study, two tied column specimens and two beam-column joints specimens with same design properties as reduced-scale RC structure have been tested to grasp the load-deformation curves. The test results can offer abundant information of blind analysis contest on reduced-scale RC structure, and they can be used to predict the possible failure mechanism of the reduced-scale RC structure. The analytical backbone curves shows conservative results after comparing with the test envelopes of column specimens. Moreover, the shaking table test results were adopted to discuss the difference between the component testing results.

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