本研究旨在探討兩座實尺寸梁柱複合構件於火害情況下梁之變形行為。柱為三面受火，一座試體(BNC1)使用普通混凝土，另一座（BSC1）使用自充填混凝土，依照ISO834標準曲線進行加溫，探討梁於服務載重作用下，在升溫及冷卻過程中，整體溫度分布、變形情形及構件之性能，並驗證相關性能法規。高溫試驗後進行殘餘強度試驗，並探討其變形。同時與前期試體(NC4、NC5、SCC3及SCC4)進行對照。
BNC1試體加溫到180分鐘時，梁在兩加載點及兩點中點m點所量測之撓度分別為常溫加載時之6.41倍、6.59倍及6.36倍。因BSC1試體劇烈爆裂，加溫到120分鐘，上述各點之撓度分別已達常溫之15.79倍、18.83倍及21.07倍。根據性能法規，試體於高溫作用中劣化深度為52.97 mm、耐火時間為146.31 min，高溫試驗進行66 min時，撓度已達規範之容許值。殘餘強度測試中，在服務載重作用下，BNC1試體在上述各點位之撓度分別為高溫試驗前的1.84倍、1.78倍及1.76倍。BSC1試體之撓度分別為2.44倍、2.11倍及2.47倍。

The aim of this thesis is to study the behavior of reinforced concrete beams under fire exposure. Two full-scale beam-column sub-assemblage specimens were tested, one (BNC1) is made of normal concrete and the other (BSC1) is self-compacting concrete. Fire tests were conducted according to ISO834 Standard Fire Curve. The temperature distribution, deformation and performance of beams under service loads during heating and cooling stages were studied. The performance-based design guide was validated. After cooling stage, residual strength tests followed. Experimental results were also compared with those obtained in the previous studies (specimens NC4, NC5, SCC3 and SCC4).
After three hours of heating, the measured deflections at load points P1, P2 and the mid-point m of specimen BNC1 were 6.41, 6.59 and 6.36 ,respectively, times those at ambient condition. The corresponding results of the BSC1 specimen were 15.79, 18.83 and 21.07, respectively. According to performance-based design guide, the deterioration depth of the specimens is 52.97 mm, and the fire endurance is 146.31 min. It also showed that after 66 min of heating, the deformation of the beam had reached the limit of design code. In the residual strength test, the measured deflections at load points P1, P2 and the mid-point of specimen BNC1 under service load were 1.84, 1.78 and 1.76,respectively, times those at pre-heating stage, and those were 2.44, 2.11 and 2.47 times, respectively, for specimen BSC1.

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