摘要
以系杆拱桥吊杆张拉为背景,指出了索力增量、千斤顶张拉力及张拉顺序三者之间的关系。探讨了影响矩阵迭代技术在线性结构和非线性结构调值中的应用以及复杂结构影响矩阵调索问题。指出索力对称的结构应尽可能利用对称性对张拉方式进行简化;对更为复杂的调值计算一般利用最小二乘法通过非线性迭代技术来实现。
With the background of bowstring arch bridge suspender tension, the relationship of cable force increment, jack tensioning force and tensioning sequence was presented in this paper. The application of influence matrix iteration technique in linear and nonlinear organizations was discussed and the cable adjustment of complicated structure influence matrix was mentioned as well. It showed that the tension method should be simplified by use of the symmetry of a structure with symmetrical cable force. For more complicated cable adjustment computing, the least square method and nonlinear iteration technique would resolve it.
出处
《中国市政工程》
2009年第5期19-21,共3页
China Municipal Engineering
关键词
吊杆
影响矩阵
迭代
最小二乘法
suspender
influence matrix
iteration
least square method
