玻璃纖維包覆螺紋管圍束鋼筋混凝土圓柱耐震實驗

Seismic Tests of Circular Reinforced Concrete Columns Confined with a Spiral Corrugated Tube and Glass Fiber Reinforced Polymer (GFRP) Materials

吳愷毅(Kai-Yi Wu)

指導教授 ： 周中哲

共同指導教授 ： 李中生(Chung-Sheng Lee)

國立臺灣大學/工學院/土木工程學研究所/碩士(2015年)

https://doi.org/10.6342/NTU.2015.00297

摘要

無資料

關鍵字

複合材料 ； 圍束混凝土 ； 複合材料圍束鋼筋混凝土柱 ； 力量-位移函數

並列摘要

This thesis has studied the seismic behavior of FRP-Wrapped Spiral Corrugated Tube (FWSCT) confined circular reinforced concrete columns. In order to analyze the behavior of FWSCT confined reinforced concrete columns under axial load and lateral hysteric load, a load-displacement program was written and compiled in VBA developed by the author. With use of this program, the section response of circular concrete columns confined by two types of materials tube can be modeled. Finally, the load-displacement curve can be obtained by the moment -curvature curve and a suitable plastic hinge length. The analysis theories are from Lee (2006) & Tan (2014).
Three specimens were built to test the performance of FWSCT confined reinforced concrete columns. One control specimen (only spiral corrugated tube confined, FWSCT-0) and two FWSCT confined reinforced concrete columns with 5 layers (FWSCT-5) and 8 layers (FWSCT-8) of GFRP were test under constant axial load and lateral reverse cyclic load in NCREE conducted by MATS. Two FRP-wrapped spiral corrugated tubes were made in Jubei, Taiwan, and got good quality. Test results showed that specimens FWSCT-0 suffered shear failure, while specimens FWSCT-5 & FWSCT-8 suffered longitudinal steel rupture with story drift up to 8%. It was found that the plastic hinge location was different from past research. After calibrated the experimental data and studied the effects of the plastic hinge position and length, the author found a reasonable way to explain the unusual results and can deal with the problems. Finally the analysis results have good correlation with the test result.

並列關鍵字

GFRP ； Confined concrete ； RC columns ； Load-displacement analysis

參考文獻

34. 廖苑儀，「普通強度鋼筋混凝土柱耐震圍束之研究」，碩士論文，國立臺灣大學土木工程學系，台北，民國104年。

2. ACI 318 Committee. (2011). Building Code Requirements for Structural Concrete (ACI 318-11) and Commentary. Farmington Hills.

3. ACI-440. Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures. Reported by ACI Committee. 2008; 440(2008).

4. Bae, S., & Bayrak, O. (2008). Plastic hinge length of reinforced concrete columns. ACI Structural Journal, 105(3).

5. Committee A. Building Code Requirements for Structural Concrete (ACI 318-11) and Commentary. American Concrete Institute 2011.