摘要
为了探究高温损伤对纤维增强复合材料(FRP)约束混凝土轴压应力-应变模型的影响规律,本文基于多个现有FRP约束常温未损伤混凝土轴压应力-应变设计型模型和已有试验数据,建立了FRP约束高温损伤混凝土应力-应变设计型模型。结果表明,基于TENG提出的模型,经修正比例系数和常温未约束混凝土的抗压强度而建立的设计型模型预测精度较好。
In order to explore the effect of elevated temperature damage on the axial compression constitutive model of fiber reinforced polymer(FRP)confined concrete,the design-oriented model with high precision is determined based on analyzing the existing experimental data.Finally,a design-oriented stress-strain model of FRP-confined heat-damaged concrete under axial compression is established.The results show that based on the model proposed by TENG,the prediction accuracy of the design-oriented model which is established by modifying proportional coefficient and the compressive strength of unconstrained concrete at room temperature is good.
作者
丁斌
欧阳利军
张春雄
DING Bin;OUYANG Li-jun;ZHANG Chun-xiong(Department of Architectural Engineering,Wenzhou Polytechnic,325035,China;School of Environment and Architecture,University of Shanghai for Science and Technology,200093,China)
出处
《混凝土与水泥制品》
北大核心
2020年第7期55-58,63,共5页
China Concrete and Cement Products
基金
温州市科学技术局基础性科研项目(G20180028)
温州市高校科协“产学研”融合创新服务项目
国家自然科学基金项目(51708349)
浙江省自然科学基金项目(LY20E080017)。
