摘要
高桩码头纵横梁正负弯矩的最大值是工程设计中的控制因素,文章在分布弹性支承连续梁模型的基础上,提出宽支座连续梁跨中和支座的正负弯矩最大值的简化计算公式。对于不同悬跨比的连续梁,通过ANSYS对不同的支座相对宽度和相对刚性系数进行有限元模拟,根据数值分析结果确定公式中的系数。对某一高桩码头工程纵梁,将简化公式和有限元的计算结果进行对比,两者误差小于5%,说明简化公式具有一定参考意义。
In the design of high-piled wharfs, the maximum value of bending moment of longitudinal and trans- verse beams is the leading factor. Based on the model of continuons beam with uniformly distribution elastic bear- ing, a simplified formula of the maximum value of positive and negative bending moment was put forward in this pa- per. For continuous beam with different ratios of cantilever to span, simulations of bearings with different relati^te width and relative rigidity coefficient were carried out through ANSYS finite element software. The coefficient in the simplified formula was determined by the numerical analysis results. Taking the longitudinal beam of a certain high- piled wharf engineering as an example, calculation results of the maximum value of bending moments were c0m- pared between the simplified formula and ANSYS. The error between them is less than 5%.
出处
《水道港口》
2016年第1期89-95,共7页
Journal of Waterway and Harbor
关键词
宽支座
纵横梁
弯矩最大值
简化计算
ANSYS
wide bearing
longitudinal and transverse beam
maximum value of bending moment
simplifiedcalculation
ANSYS
