玻璃纖維包覆螺紋管圍束鋼筋混凝土圓柱剪力設計與實驗驗證

Shear Strength Design and Tests of Circular Reinforced Concrete Columns Confined with a FRP-Wrapped Spiral Corrugated Tube

陳威霖(V-Liam Chin)

指導教授 ： 周中哲 ； 李中生

國立臺灣大學/工學院/土木工程學研究所/碩士(2016年)

https://doi.org/10.6342/NTU201601127

摘要

無資料

關鍵字

玻璃纖維 ； 螺紋管 ； 圍束混凝土 ； RC柱 ； 剪力強度

並列摘要

This study is conducted to investigate the shear strength of FRP-Wrapped Spiral Corrugated Tube (FWSCT) confined circular concrete columns. In order to study the shear strength of the Spiral Corrugated Tube and the FRP jacket, two shear strength models (UCSD shear model and residual shear model) are adopted in this analytical procedure.
In this experimental program, two FRP-Wrapped Spiral Corrugated Tube (FWSCT) Circular Concrete Columns with different amount of FRP confinement were tested under cyclic lateral loading with a constant axial load level. The main variable was the confinement ratio of the FRP jacket, which can be controlled by wrapping different number of FRP sheets around the Spiral Corrugated Tube. Two columns, FWSCT-1 and FWSCT-3 were designed based on a reference column, FWSCT-0 (Wu 2015), which confined by only a spiral corrugated tube with 0.4 mm thick and 1940 mm tube length. FWSCT-1 and FWSCT-3 were wrapped by additional one-layer and three-layer of Glass Fiber-Reinforced Polymer (GFRP) jackets around a spiral corrugated tube, respectively. Test results showed that the brittle shear failure in specimen FWSCT-0 is improved by wrapping one-layer of the GFRP jacket as seen in the test of specimen FWSCT-1. Specimen FWSCT-1 failed at 4% story drift, resulting in flexural-shear failure of column, while specimen FWSCT-3 failed at 7% story drift, resulting in flexural failure of longitudinal bars.

並列關鍵字

GFRP ； Spiral Corrugated Tube ； Confined concrete ； RC columns ； Shear strength

參考文獻

28. 周中哲，吳愷毅，李中生(2016)「玻璃纖維包覆螺紋管圍束鋼筋混凝土圓柱發展與耐震試驗」，結構工程(2016/3審核通過)

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3. ASTM D3039/D3039M-14 (2014) Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials, ASTM International, West Conshohocken, PA.

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