机场水泥混凝土道面板缩缝的窄缝设计方法

Design method of shrinkage narrow slit on airport cement concrete road surface

对机场水泥混凝土道面板缩缝采用的两次锯缝,改为一次锯缝的窄缝设计.建立了考虑温度翘曲变形、伸缩变形和干缩变形等影响的接缝张开量的计算公式.根据接缝张开量和填缝料的技术要求,建立了锯缝宽度的计算公式,并应用于机场水泥混凝土道面的窄缝设计.

changing two zigzag slits design on c ement concrete road surface of airport to one zigzagged narrow slit has been an-alyzed.The calculation formula on j oint open has been set up with the consideration of hogging distortion cau sed by temperature,expansion deformation and drying sh rinkage.According to the technical requirement of joint open and joint s ealing material,the calculation formula of zigzag spacing has been set up and applied in narro w slit design on cement concrete road surface of airport.