等代均布荷载 equivalent uniform distributed load
The formula of equipollent load of spatial pre-stress was deduced based on the equilibrium equation of curved prestressed concrete girder bridge. The formula of twist moment caused by spatial pre-stress was also deduced.
推导了空间预应力等代荷载的计算公式,给出了混凝土曲线箱梁由预应力引起的扭矩的计算公式,并应用有限元程序对预应力引起的效应从箱梁横截面应力层面上进行分析。
参考来源 - 预应力混凝土曲线箱梁扭转性能研究·2,447,543篇论文数据，部分数据来源于NoteExpress
预应力在有限元分析中一般按等代荷载考虑，但体单元的预应力等代荷载计算很少见到讨论。
Prestress is converted normally into equivalent loads in the finite element analysis, but calculation of equivalent loads of prestress in body element is very few to be discussed.
以桥梁拱脚为例，依据实验结果提出了一种模拟预应力钢索与索道壁之间接触压力等代荷载的实用的方法。
Taking an arch foot as an example, a practical met hod was proposed to simulate the contact pressure of the prestressed tendon according to the experiment.
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。
A precise formula for equivalent load of prestressing force in curved girder of arc form is derived from the fundamental formulae of differential geometry.
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