- 摘 要
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（西南交通大學土木工程學院， 成都 610031）
［摘要］結(jié)合10組新老混凝土界面抗剪試驗研究數(shù)據(jù)，對三種新老混凝土界面抗剪強度的計算方法進行了研究。將試件界面抗剪強度計算值和實測值進行對比，結(jié)果表明：這三種計算方法對新老混凝土的粘結(jié)抗剪能力估計都不夠準確，界面抗剪強度計算值和實測值吻合較差，均不能很好地應用于工程實踐。
［關鍵詞］新老混凝土； 界面； 抗剪強度； 粘結(jié)抗剪能力； 植筋抗剪能力
中圖分類號：TU528-01文獻標識碼：A文章編號：1002-848X(2016)15-0065-04
Calculation methods of shear strength on new-to-old concrete interface
Mao Dejun， Qian Yongjiu
(School of Civil Engineering， Southwest Jiaotong University， Chengdu 610031， China)
Abstract:Combined with 10 sets of research data from new-to-old concrete interface shear tests, three kinds of calculation methods of new-to-old concrete shear strength were studied. The calculated values and measured values of shear strength on specimen interfaces were compared. The analysis results show that these three calculation methods are not accurate enough to estimate the bond shear capacity of new-to-old concrete, and the calculated values and measured values of shear strength on interfaces don′t coincide with each other, so those methods are not well used in engineering practice.
Keywords:new-to-old concrete； interface； shear strength； bond shear capacity； planting rebar shear capacity
*中央高?；究蒲袠I(yè)務費專項資金資助（SWJTU11ZT33）。
作者簡介：毛德均，博士研究生，Email：541089451@qq.com。
