EXPERIMENTAL STUDY ON IMPROVEMENT MEASURES OF SEISMIC RESISTANCE FOR TUBULAR PILES OF PHC

ZHAO Changchun; ZHANG Liujun; GONG Weiming; MENG Chunhui

doi:10.13204/j.gyjz20021050

Volume 51 Issue 1

Apr. 2021

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ZHAO Changchun, ZHANG Liujun, GONG Weiming, MENG Chunhui. EXPERIMENTAL STUDY ON IMPROVEMENT MEASURES OF SEISMIC RESISTANCE FOR TUBULAR PILES OF PHC[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(1): 131-134. doi: 10.13204/j.gyjz20021050

Citation:

ZHAO Changchun, ZHANG Liujun, GONG Weiming, MENG Chunhui. EXPERIMENTAL STUDY ON IMPROVEMENT MEASURES OF SEISMIC RESISTANCE FOR TUBULAR PILES OF PHC[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(1): 131-134. doi: 10.13204/j.gyjz20021050

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EXPERIMENTAL STUDY ON IMPROVEMENT MEASURES OF SEISMIC RESISTANCE FOR TUBULAR PILES OF PHC

doi: 10.13204/j.gyjz20021050

1. PowerChina Roadbridge Group Co., Ltd., Beijing 100037, China;
2. School of Civil Engineering, Southeast University, Nanjing 211189, China

Received Date: 2020-02-10
Available Online: 2021-04-30

Abstract

Abstract

In order to improve the seismic performances of tubular piles of prestressed high-strength concrete (PHC), carbon fibers were mixed into concrete to improve seismic performances. Based on low-cycle reciprocating loading tests of 4 tubular piles of PHC for two types. The experimental phenomena were observed, and the change trend of hysteretic curves, skeleton curves, strength and stiffness degradation, ductility and energy dissipation performances were analyzed, and the influences of carbon fibers mixed into concrete on the seismic performances of PHC piles were emphatically studied. The results showed that: mixing carbon fibers into concrete could improve adhensive force of concrete, improve the tensile performances of concrete, delay concrete crack, reduce the stiffness degradation of PHC piles, improve the stiffness, strength and energy dissipation performance of PHC piles.
- tubular pile of PHC,
- seismic performance,
- carbon fiber,
- low-cycle reciprocating loading test

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References(17)

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