頁籤選單縮合
題 名 | 鋼筋混凝土擴柱對梁柱接頭抗剪能力提昇之研究=Investigation on Shear Enhancement of Beam-Column Joint Retrofitted with RC Jacketing |
---|---|
作 者 | 王勇智; 高啟洲; 楊政達; | 書刊名 | 中國土木水利工程學刊 |
卷 期 | 15:3 2003.09[民92.09] |
頁 次 | 頁521-530 |
分類號 | 440.328 |
關鍵詞 | RC梁柱接頭; 非韌性; 擴柱補強; 剪力衰減; RC beam-column joint; Non-ductile; RC jacketing; Shear degradation; |
語 文 | 中文(Chinese) |
中文摘要 | 本文旨在探討鋼筋混凝土擴柱補強工法對於梁柱接頭抗剪能力提昇之可行性,尤其著重在討論利用現有剪力強度評估模式應用於既有及擴柱補強後梁柱接頭剪力強度之評估。試體乃利用四支全尺寸之梁柱接頭,其中二支為原型試體,另二支則採用較高混凝土強度作為擴柱補強。研究結果顯示,利用強度較高之混凝土作為擴柱補強且新舊混凝土間並無植筋,可有效提昇無水平箍筋之內外接頭抗剪強度,其中以外接頭補強效果優於內接頭補強。利用軟化壓拉桿模式可對既有梁柱接頭作準確評估,並且在評估不植筋之擴柱補強接頭,亦有其準確度。 |
英文摘要 | This paper investigates the shear enhancement of beam-column joints strengthened with concrete jacketing, with special emphasis on the current assessment models for the prediction of joint shear strength. Four full-scale RC beam-column joints, two for benchmark specimens and two for rehabilitated units with higher-strength concrete jacketing, were tested. Test results show that the shear strength of the non-ductile beam-column joints was efficiently enhanced by the concrete jacketing, where no anchors were installed between new and old concrete interfaces. Nevertheless, jacketing applied to the exterior joint is more functional than to the interior one. The tested joint shear strengths for both prototype and retrofitted beam-column joints agreed well with the assessment obtained from the softened strut-and-tie model. |
本系統中英文摘要資訊取自各篇刊載內容。