根据瑞利—李滋法，对先张法预应力吊车梁首次提出了预应力水平拉杆作用效应增量的计算公式。
Base on Rayleigh-Ritz method, a calculation formulation of action effect increment of a prestressed horizontal tension rod is firstly presented.
以某游泳馆拱下预应力拉杆检测为例，应用振动法测试拉杆的工作内力。
Taking the examination of prestressed pull rod under an arch in a natatorium as a sample, the working internal force of pull rod is determined by use of vibration method.
以某游泳馆拱下预应力拉杆检测为例，应用振动法测试拉杆的工作内力。
Taking the examination of prestressed pull rod under an arch in a natatorium as a sample, the working internal force of pull rod is determined by use of vibration method.
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