纤维增强塑料加固混凝土梁界面本构模型研究有关问题的分析与评价

摘要/Abstract

摘要： 针对FRP加固混凝土梁界面特性研究的众多问题,研究了FRP-混凝土界面粘结-滑移本构模型问题,界定了被加固混凝土梁体中介质与界面,找出了界面粘结剪应力的获取方法困难的原因,分析了界面滑移量的组成及刚体滑移以及界面粘结-滑移本构关系的参数及其适应性,对FRP加固混凝土梁FRP-混凝土界面的本构模型的有关问题进行了归纳和评价,并提出了FRP-混凝土界面特性研究的宽缺口梁试验法。

关键词: 纤维增强塑料, 加固, 混凝土梁, 界面, 本构模型, 分析与评价

Abstract: Based on the many problems of researching about interfacial characteristics between fiber reinforced plastic and concrete, interface constitutive model of concrete beam strengthened with fiber reinforced plastic was researched. Media and the interface of concrete beam strengthened were defined, the reason difficult to obtain bond shear stress was founded, compose of interface bond-slip, rigid body sliding, the parameters and their adaptability of constitutive relationship were analysed. The problems concerning interface constitutive model of concrete beam strengthened with fiber reinforced plastic were inducted and evaluated, the experimental method researching interfacial characteristics between FRP and concrete with wide-notch concrete beam was put forward.

Key words: fiber reinforced plastic, strengthening, concrete beam, interface, constitutive model, analyses and evaluation

中图分类号:

曾宪桃, 任振华. 纤维增强塑料加固混凝土梁界面本构模型研究有关问题的分析与评价[J]. 复合材料科学与工程, 2014, 0(1): 62-67.

ZENG Xian-tao, REN Zhen-hua. ANALYSES AND EVALUATION OF THE PROBLEM CONCERNING INTERFACE CONSTITUTIVE MODEL OF CONCRETE BEAM STRENGTHENED WITH FIBER REINFORCED PLASTIC[J]. COMPOSITES SCIENCE AND ENGINEERING, 2014, 0(1): 62-67.

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