摘要
ＰＣ斜拉桥受混凝土徐变的影响很大，本文针对这一特点，从“稳定张拉力”的求解思想出发，提出了一种便于在初步设计中确定恒载索力的新方法。采用该方法可以达到节省材料，简化设计和减少徐变影响的目的。
PC cable stayed bridge is affected by concrete creep considerably. With due regard to affection of concrete creep and on the basis of calculation of “unchanged tensile force”, a new method convenient to assign dead load cable forces in preliminary design of a PC cable-stayed bridge is proposed. The method in question is economic in cost, simplified in design, minmum in creep affection, and hence highly practicable.
出处
《桥梁建设》
EI
CSCD
北大核心
1996年第4期1-5,共5页
Bridge Construction
关键词
斜拉桥
徐变
稳定张拉力
索力
混凝土
恒载
PC cable stayed bridge, creep, unchanged tensile force, rational cable force
