期刊论文

Experimental study on mechanical behavior of prestressed carbon fiber reinforced polymer strengthened concrete beams with near-end-enhanced-embedment

中文

建筑结构学报

1000-6869

2023

44

7

152-160,203

10.14006/j.jzjgxb.2022.0085

国家自然科学基金(52178186， 51578078)； 湖南省研究生科研创新项目(CX20200836)；

本校为第一机构

本文提出了一种端部嵌贴（Near end enhanced embedment， NEEE）预应力纤维增强复合材料（Fiber reinforced polymer， FRP）加固混凝土梁的新方法，并通过9根加固梁的静载试验考察了端部嵌贴预应力碳纤维增强复合材料（Carbon fiber reinforced polymer， CFRP）加固梁的破坏形态，分析了端部嵌贴段构造、表贴段粘结构造和CFRP加固量等因素对加固梁受力性能的影响。研究结果表明：NEEE预应力CFRP加固混凝土梁具有比外贴（Externally bonded， EB）和表层嵌贴（Near surface mounted， NSM）等传统CFRP加固体系更好的承载性能，独特的端部嵌贴构造能有效锚固预应力CFRP，且能抑制板端保护层剥离...

A method of near-end-enhanced-embedment(NEEE)prestressed fiber reinforced polymer(FRP)strengthening concrete beams was proposed to improve the shortcomings of existing FRP reinforcement technology in engineering applications,such as the high cost of mechanical anchorage...MORE A method of near-end-enhanced-embedment(NEEE)prestressed fiber reinforced polymer(FRP)strengthening concrete beams was proposed to improve the shortcomings of existing FRP reinforcement technology in engineering applications,such as the high cost of mechanical anchorage,complex grooving process,and easy to fail by concre...