期刊
SMART MATERIALS AND STRUCTURES
卷 31, 期 12, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1361-665X/ac9d11
关键词
piezoelectric smart aggregate; prefabricated assembly; GFRP-UHPC composite beam; interfacial peeling damage
资金
- National Natural Science Foundation of China [51978631]
- Program for Innovative Research Team (in Science and Technology) in University of Henan Province [23IRTSTHN006]
The combination of glass fiber reinforced plastic (GFRP) and ultra-high performance concrete (UHPC) in a new composite beam for ocean engineering improves durability. Prefabricated construction technology and piezoelectric smart aggregate monitoring effectively assess the interface damage level of composite beams.
Glass fiber reinforced plastic reinforcement (GFRP) and ultra-high performance concrete (UHPC) were combined into a new composite beam, which was applied in ocean engineering to improve the durability of structures. To enhance the stiffness and durability of composite beam and lower the cost of structure, prefabricated construction technology was adopted to reserve holes for pouring UHPC. Through the quasi-static test of prefabricated GFRP-UHPC composite beams, the interface between concrete and GFRP was monitored using piezoelectric smart aggregate. The damage index was obtained in accordance with wavelet packet energy analysis theory to examine the interface damage of prefabricated composite beams. Experimental results show that active monitoring of assembled GFRP-UHPC composite beams with piezoelectric smart aggregate can effectively reflect the degree of interface peeling damage of composite beams. The monitoring results reveal that interface damage of specimens with reserved continuous holes is less than that of specimens with reserved discontinuous holes. Moreover, peeling damage will occur not only between GFRP and UHPC, but also at the interface between concrete and UHPC.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据