鋼筋混凝土外部黏貼碳纖維補強貼片之錨碇性能試驗研究

EXPERIMENTAL STUDY ON ANCHORAGE PERFORMANCE OF CFRP SYSTEMS EXTERNALLY BONDED TO CONCRETE

10.6652/JoCICHE.202406_36(4).0002

葉芳耀(Fang-Yao Yeh)；江奇融(Chi-Rung Jiang)；蕭勝元(Sheng-Yuan Shiao)；陳俊仲(Chun-Chung Chen)；洪曉慧(Hsiao-Hui Hung)；陳國隆(Kuo-Long Chen)；羅財怡(Tsair-Yi Luo)；李奕霆(Yi-Ting Lee)；彭康瑜(Kang-Yu Peng)；吳明興(Ming-Shing Wu)；陳建宏(Chien-Hung Chen)

碳纖維貼片 ； 剪力補強 ； 錨碇性能 ； 抗拉強度 ； 有效應變 ； carbon fiber-reinforced polymers ； shear strengthening ； anchorage performance ； tensile strength ； effective strain

中國土木水利工程學刊

36卷4期（2024 / 06 / 01）

329 - 338

繁體中文;英文

在過去的二十年裡，纖維強化聚合物（fiber-reinforced polymer, FRP）已廣泛用於混凝土結構的補強和加固。由於FRP與混凝土間的界面剝離，外部貼附FRP貼片補強的混凝土構件常因FRP過早剝離使得補強失效，因此在實際工程應用中無法充分發揮FRP的抗拉強度。本研究主要目的是以試驗方式研究在相同的碳纖補強貼片條件下，比較不同錨碇方法對補強貼片拉力強度與有效應變之影響。碳纖維貼片錨碇法之研究參數包括碳纖維錨碇貼片的寬度及厚度（層數、單位面積之重量），並比較貼片錨碇法、錨栓錨碇法及表面溝槽鑲嵌錨碇法之錨碇性能。

Carbon fiber-reinforced polymers (CFRP) have been widely used for retrofitting and strengthening concrete structures over the past two decades. Concrete members strengthened by externally bonded CFRP sheets can fail prematurely in debonding between the interface of CFRP and concrete, not allowing full utilization of CFRP tensile strength, in engineering practice. The objective of this research is to compare the effects of different anchorage systems on the tensile strength and effective strain of the CFRP reinforcement sheets under the same strengthening conditions. The research parameters of the CFRP patch anchor include the width and thickness of the carbon fiber anchor patch (the number of layers, the weight per unit area). Furthermore, the anchorage performance of the patch anchor (PA) method, the spike anchor (SA) method and the near surface mounted anchor (NSM) method are compared.