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【提要】 設(shè)計(jì)了84個(gè)試件在高溫下鋼筋與混凝土間的粘結(jié)力試驗(yàn)，回歸分析得到鋼筋與混凝土間的粘結(jié)力降低系數(shù)與溫度的關(guān)系，分析了火災(zāi)后混凝土結(jié)構(gòu)構(gòu)件的抗力，提出了火災(zāi)后混凝土構(gòu)件的抗力計(jì)算模型，在此基礎(chǔ)上運(yùn)用JC法對(duì)火災(zāi)后的混凝土構(gòu)件的可靠性進(jìn)行了分析，并進(jìn)行了工程實(shí)例分析。
【關(guān)鍵詞】 火災(zāi) 混凝土構(gòu)件 可靠性分析 抗力分析
Reliability Analysis of RC Component After Fire/Xu Zejing1,2， Song Yupu1 Xu Youlin3(1 The State Key Laboratory of Coast and Offshore Engineering，Dalian University of Technology, Dalian 410000, China; 2 Henan Provincial Academy of Building Research, Zhengzhou 450000, China; 3 China Academy of Building Research, Beijing 100013, China)Abstract:The tests on the bond capability between steel bar and concrete of eightyfour RC components under high temperatures are carried out. The relationship of bond capability and the temperature is regressed based on the test results. The resistance and the reliability of RC component after fire are analyzed by JC method. The calculation model of resistance and reliability analysis of RC component after fire is advised, and it is  used in some projects.
Keywords:fire; RC component; reliability analysis; resistance analysis
1) 大連理工大學(xué)海岸及近海工程國(guó)家重點(diǎn)實(shí)驗(yàn)室,410000；  2)河南省建筑科學(xué)研究院,
鄭州，450000；  3) 中國(guó)建筑科學(xué)研究院,北京,100013。