摘要
由微分几何基本公式导得圆弧曲线梁中预应力等代荷载的精确公式，预应力钢索在曲梁中竖弯与平弯均较平缓，此时公式可得以简化。将简化后的公式与Ｅ．Ａ．Ｂ．Ｓａｌｓｅ公式进行比较，两者略有差异。由于现今计算机应用的高度普及，当需要计算准确时。
A precise formula for equivalent load of prestressing force in curved girder of arc form is derived from the fundamental formulae of differential geometry. When the vertical and horizontal curvature of prestressing cable in the curved girder is fairly gentle, the formula to the purpose may be simplified. The simplified formula is then compared with E. A. B. Salse formula, and the slight differences are found between the two formulae. Because the application of computers is highly popular nowadays, it will be quite appropriate to use the precise formula aforementioned in need of precise calculation.
出处
《桥梁建设》
EI
CSCD
北大核心
1997年第1期71-73,共3页
Bridge Construction
关键词
曲梁
预应力钢筋
荷载
等代荷载
计算
curved girder, prestressing tendon, equivalent load, self balancing force system
