腐蝕鋼筋混凝土構件裂縫之應力強度因子評估

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Title:	腐蝕鋼筋混凝土構件裂縫之應力強度因子評估
Authors:	張奇偉 Chang, Che-Way
Contributors:	土木工程學系 Civil Engineering
Keywords:	腐蝕鋼筋混凝土;反射式光彈法;膨脹應力;應力強度因子。 Corrosion;ferroconcrete;Reflection Photoelasticity;Residual Strength/Life;Stress Intensity Factor.
Date:	2008
Issue Date:	2014-06-26 20:18:40 (UTC+8)
Abstract:	由於台灣是屬於亞熱帶四面環海之環境，鋼筋混凝土結構物之鋼筋因腐蝕所產生的生成物，會產生擠壓混凝土之膨脹效應，而使混凝土開裂，造成混凝土與鋼筋之間的握裹強度減弱，最後導致整體鋼筋混凝土結構物的破壞。本研究以鋼筋混凝土構件之加速腐蝕試驗，以光學應力量測系統探討鋼筋混凝土構件因腐蝕生成物而產生於鋼筋周圍之膨脹應力分佈，評估在不同腐蝕階段(無裂縫、初始裂縫、部分裂縫)鋼筋周圍混凝土承受之膨脹應力，同時應用光測力學與線彈性破壞力學理論，計算鋼筋混凝土構件因腐蝕因素造成混凝土發生裂縫時，其裂縫尖端附近之破裂強度參數應 Taiwan, surrounded by the sea, has a subtropical island climate. Its annual average humidity is over 80%, contributing to a highly corrosive environment. For the structures, time, together with external environmental factors such as earthquakes and ground
Appears in Collections:	[Department of Civil Engineering] Seminar Papers

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