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为保证门式起重机在使用过程中安全,在验收检验、定期检验中都会对其拱度、翘度、挠度进行测量和计算。在对上述技术指标的测量中,经常会使用拉钢丝绳法和水准仪法进行测量。但不论使用何种方法,在现场测量中,由于支腿的高度差、大车轨道的高度差、支腿的弹性变形及基础的不均下沉等,均可能造成主梁两支点的连线不是水平线。若采用两支点读数的平均值与悬臂点的读数之差,作为该点的翘度,但用这种方法计算出的数值在
In order to ensure the safety of gantry crane during use, its camber, warpage and deflection are measured and calculated in acceptance inspection and periodic inspection. In the measurement of the above technical indicators, often use the wire rope method and the level of law to measure. However, no matter which method is used, the connection between the two pivots of the main girder may be caused by the height difference of the leg, the height difference of the cart rail, the elastic deformation of the leg and the uneven sunken foundation in the field measurement Not a horizontal line. If the difference between the average of two point readings and the reading of the cantilever point is taken as the warp of this point, the value calculated in this way is between