摘要
本文在约束系数矩阵法的基础上，进一步提出了适用于碾压混凝土坝和普通大体积混凝土结构的温差控制标准的直接计算法。根据龙滩碾压混凝土重力坝坝体和基岩的材料和结构特性，由有限元法直接计算出典型坝段约束区的高度、基础约束区内常态混凝土和不同级配碾压混凝土的容许温差、溢流坝段在间歇三个月后重新浇筑时的上下层温差，从而得到了明确完整的龙滩碾压混凝土坝的温差控制标准。
A direct calculative method, based on restraint matrix and FEM, is proposed to calculate temperature control standard for mass concrete and RCC dams. With this method, the allowable temperature controlstandard of the Longtan RCC gravity dam (H=216.5m) has been given, including the height of restraintzone, the allowable temperature changes of different materials within the restraint zone and the allowable temperature change between hardened and newly placed concrete.
出处
《红水河》
1996年第1期19-23,共5页
Hongshui River
基金
"八五"国家重点科技攻关项目
关键词
混凝土坝
重力坝
碾压混凝土
温差控制
水电站
concrete gravity dams, roller-compacted concrete, temperature control standard, direct calculative method, longtan project.
