碳纖維圍束混凝土組成律之探討

Research on Stress-strain Model for CFRP Wrapped Concrete

劉鈞豪(Jun-Hao Liu)

指導教授 ： 林至聰

國立臺北科技大學/工程學院/土木與防災研究所/碩士(2011年)

摘要

近年來國內外對於混凝土受CFRP圍束補強後之組成律的研究已有相當的成果，但是仍還沒有得到共同的破壞準則之結果，而所提出的圍束試體強度預測公式大多採用過程複雜的迴歸分析方法所得到的，因此其經驗公式則由於各種圍束材料特性不同，其適用範圍也侷限於實驗資料庫的範圍內，有待進一步的研究討論。
本研究探討用碳纖維圍束不同尺寸之混凝土圓柱與方柱試體並於圓柱試體上黏貼應變計在抗壓試驗下，達到試體破壞後，進一步去討論試體所量測到的軸向應變與側向應變並做其組成率之探討；在此試驗中：圓柱分別灌注7組不同長徑比(L/D)之試體分別為1、1.25、1.5、1.75、2、3、4之試體；而方柱則灌注3組不同長寬比(L/W)之試體分別為1、2、4之試體，在28天養護後進行抗壓試驗以量測其應力與應變值。

關鍵字

碳纖維 ； 圍束效應

並列摘要

Abroad in recent years by the CFRP confinement for concrete reinforcement formed after the law has been a considerable amount of research and results. But still has not been a common failure criterion results. The proposed confinement strength of specimens prediction formula they use a complicated process of regression analysis obtained. So the empirical formula is due to a variety of different material properties around the beam. The limited scope of application within the experimental database. Pending further study and discussion.
This study investigated the use of carbon fiber confinement of concrete columns of different size specimens with square columns and was stuck on the cylindrical specimens in compression tests under strain gauges, reached after the destruction of specimens. To discuss further specimens to the measured axial strain and lateral strain rate and make the composition of. In this experiment： 7 different groups were perfusion cylinder aspect ratio (L / D) of the specimens were1、1.25、1.5、1.75、2、3、4. The square columns are three groups of different aspect ratios perfusion (L / W) of the specimens were1、2、4 .Conservation of 28 days after the compression test to measure the value of the stress and strain.

並列關鍵字

Carbon Fiber Reinforced Plastic(CFRP) ； Triaxial experiment

參考文獻

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