【摘要】 本文共进行31根模型梁静载破坏试验。试验结果表明,经过反复加载梁与未经反复加载梁,静载破坏形态基本一致;截面变形服从平截面假定;破坏时钢绞线极限应力均值为0.895R_y~j。根据国内103根试验梁资料,得出计算不定性系数为1.05。更多还原

【Abstract】 The paper analyses the destructire tests of 31 beams under static loading with the result that the average ultimate stress of strand is 0.895R_y~j.The test results show that the destuctive forms of the beams are like whether the beams have endured repeated loading or not and the deformation of beam section coincides with the assumption of plane cross-section.The indeterminate coefficient of calculation model is acquirined as 1.05 based on the data of 103 beams tested in our country.更多还原