臺灣博碩士論文加值系統

本研究主要在探討中低樓層建築之樓版對鋼梁與混凝土柱(RCS)梁柱接頭之耐震行為影響，以作為中、美合作計畫之先期研究。此中、美合作計畫將於2002年在國家地震工程研究中心進行實尺寸三層樓三跨度RCS平面構架試驗。本研究針對此三層樓構造，進行子結構反覆循環載重試驗及近斷層位移反覆載重試驗，試驗項目包括一樓梁柱接頭交會區箍筋細節設計與樓版對交會區的影響進行研究，於文獻中選擇梁穿透式RCS接頭型式引進國內，製作與整體構架相同斷面之次結構試體3 座(含樓版之十字型內柱)，以實驗驗證其耐震行為，深入探討樓版、接頭細節對接頭耐震行為影響。
試驗結果顯示，樓版對鋼梁提供橫向束制，穩定梁上翼版且延遲其挫屈發生時間，同時也有效預防梁上翼版發生扭轉挫屈。因此，在正彎矩作用下，梁柱結構之抗彎起始勁度與極限強度皆比承受負彎矩作用時高各約67%及27%。由於試驗構架為二維，試驗結果顯示模擬三維接頭試體（含橫梁）與二維試體（未含橫梁）並無明顯差異，試體之主要破壞位置發生於梁塑鉸區，鋼梁翼版與腹版相繼有挫屈之現象，最後鋼梁翼版斷裂破壞。由試體變形分離之結果發現絕大部分結構變形集中於梁上，柱撓曲變形與鋼梁對柱混凝土所產生之承壓變形所造成梁端之轉角皆很小，且維持在彈性範圍內，交會區剪力所造成梁端之轉角稍大，呈現些許非線性行為。觀察試體之遲滯迴圈消能能力，含樓版之試體消能能力比不含樓版之試體稍大，兩者之消能趨勢類似。

This research aims to investigate the composite effect of floor slab on the RCS connections, in an effort to form a basis for the international research corporation between Taiwan and USA in the year of 2002. This corporation proposes to test a three-story three bays RCS in-plane frame at the NCEER, Taiwan. Based on the three-story frame, three “cross shape” composite RCS interior joint subassemblages were constructed, and tested. Parameters such as composite effect due to slab and various details in beam-column connections may be clarified through this study.
Experimental results showed that lateral-torsion buckling at the top beam flange could be suppressed by the support of slab. Stiffness and ultimate strength of specimens with slab were increased respectively 67% and 27% under positive bending when compared to the specimens without slab. Due to two dimensional test frames, experimental results showed that there is not many difference between three-dimensional joint specimens (with transverse beam) and two-dimensional joint specimens (without transverse beam). Primary failure of the specimen occurred at the plastic hinges of steel beam where buckling sequentially took place at the flange and web of steel beam. Deformation separation revealed that major deformations come from beam; while column rotation and joint bearing rotation were small and remained elastic. Although, joint panel shear rotation was also small, but accompanied with some non-linear behavior. It was also found that specimens with floor slab have only marginal effect on the energy dissipation of RCS beam-column connections then the specimens without slab.

中文摘要
英文摘要
致謝
目錄
表目錄
圖目錄
照片目錄
一、緒論
二、文獻回顧
三、梁柱梁交會區及複合樓版之力學行為
四、實尺寸梁柱接頭反覆載重實驗
五、試驗結果之分析模擬
六、結論與建議
參考文獻
附表
附圖
附照片
附錄一
1.計算混凝土柱橫向箍筋鋼筋量
2.交會區箍筋設計
3.鋼梁續接

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