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袁浦桥负弯矩张拉伸长量计算:
N1的控制应力为: [P] 1=P[1-e-(kx+μθ)]/(kx+μθ)
=156.3×[1-e-(0.0015×0.873+0.225×0.1745)]/( 0.0015×0.873+0.225×0.1745)
=153.18KN
N2的控制应力为: [P]2=195.3×[1-e-(0.0015×0.873+0.225×0.2245)]/( 0.0015×0.873+0.225×0.1745) =191.41KN
N1三段伸长量分别为:
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