Stress Test of CFRP Confined Concrete Short Column under Axial Load Based on Cement-Based Piezoelectric Sensor

Ying Zhang; Ya Ping Peng; Shi Feng Huang

doi:10.4028/www.scientific.net/AMR.700.170

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 700Stress Test of CFRP Confined Concrete Short Column...

Stress Test of CFRP Confined Concrete Short Column under Axial Load Based on Cement-Based Piezoelectric Sensor

Abstract:

This paper presents a new method of direct stress test in the core area of CFRP confined concrete short column by using cement-based piezoelectric sensor. The sensors are embedded in the core area of concrete short columns, dynamic fatigue tests are taken on the columns before and after CFRP reinforcement respectively. The results show that an obvious linear relation is found between sensor output signal and test input load, the slope of load-sensor signal curve of concrete short column is larger after CFRP reinforcement, the sensor signal peak is increased with the increase of the loading frequency, but the loading frequency is almost no effect on the increasing extent of the stress, the stresses in the core area of concrete short columns can be significantly improved after the columns reinforced by CFRP, the increment percentages are in the range of 5% ~ 20%.

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Periodical:

Advanced Materials Research (Volume 700)

Pages:

170-174

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.700.170

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Online since:

May 2013

Authors:

Ying Zhang, Ya Ping Peng, Shi Feng Huang

Keywords:

Carbon Fiber Reinforced Polymer/Plastic (CFRP), Cement-Based Piezoelectric Sensor, Short Column, Stress

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