研究生: |
張意尙 I-SHANG CHANG |
---|---|
論文名稱: |
局部區域腐蝕對於 RC 牆之力學行為影響研究 Study on Mechanical Behavior of RC Infill Walls with the Localized Corrosion |
指導教授: |
邱建國
Chien-Kuo Chiu |
口試委員: |
鄭敏元
Min-Yuan Cheng 李宏仁 Hung-Jen Lee |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 營建工程系 Department of Civil and Construction Engineering |
論文出版年: | 2022 |
畢業學年度: | 110 |
語文別: | 中文 |
論文頁數: | 223 |
中文關鍵詞: | 局部區域腐蝕 、鋼筋腐蝕 、鋼筋混凝土牆 、腐蝕 RC 牆構件剪力強度計算 、老劣化 |
外文關鍵詞: | localized corrosion, shear strength of corroded RC wall members, corrosion rate of steel bars |
相關次數: | 點閱:134 下載:0 |
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本研究以實驗驗證詹宗翰之腐蝕RC牆構件剪力強度計算模型。並探討是否適用於不同種局部區域腐蝕之RC牆。
實驗沿用姚亭君之牆試體,並以其靜力反覆加載試體之試驗結果作為無腐蝕RC牆之基準。採不同區域之腐蝕作為本次實驗之操縱變因,設計五種不同局部腐蝕區域,設計腐蝕率皆為10%。同樣進行靜力反覆加載測試,並在試體破壞後,取其內部腐蝕區域之鋼筋量測真實腐蝕率。參考文獻,以鋼筋之真實腐蝕率回推合理之腐蝕裂縫寬度,並帶入計算。
由試驗之結果分析討論後,建議利用腐蝕裂縫寬度評估牆體內部鋼筋腐蝕率之合適方式;並驗證詹宗翰之腐蝕RC牆構件剪力強度計算模型用於局部區域腐蝕RC牆之合理性。提供工程師於結構物老劣化後,進行考慮耐久性之耐震能力評估時,可納入參考。
In this study, Zhan's model for calculating the shear strength of corroded RC wall members was verified experimentally. And to explore whether it is suitable for RC walls with different kinds of localized corrosion.
In the experiment, the wall specimen of Yao was used, and the test result of repeated static loading of the specimen was deemed as the benchmark for non-corrosion RC walls. The corrosion of different regions was applied as the manipulated variable of this experiment. Five different localized corrosion regions were designed with 10% of corrosion rate. The static repeated loading test is also carried out. After the test specimens are damaged, the steel bars in the corrosion area are cutting out to measure the actual corrosion rate. Referring to references, based on the actual corrosion rate of the steel bars, the reasonable corrosion crack width can be determined. Then brought into Zhan's model to calculate the shear strength of corroded RC wall.
After analyze, this study suggests two reasonable methods to evaluate the corrosion rate of steel bars in the wall by using the width of corrosion cracks. And verify Zhan's model for calculating the shear strength of corroded RC wall members is suitable for RC walls with the localized corrosion.
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