基于影响矩阵的系杆拱桥合理成桥吊杆索力确定

通过对系杆拱桥合理吊杆张拉力传统计算方法研究,提出了基于影响矩阵的综合刚性吊杆法和自动调索法来确定系杆拱桥的合理成桥吊杆内力.该方法采用刚性吊杆法,得出吊杆内力与系梁控制节点的竖向位移,从而求出吊杆内力对系梁节点竖向位移的影响矩阵,然后运用自动调索法修正吊杆内力,即得到合理成桥状态下的吊杆内力.

Determination of Rational Completion Hanger Force of Bowstring Arch Bridges on the Basis of Influence Matrix Method

The dissertation proposes a method synthesizing rigid hanger method and automatic adjustment cable force method on the basis of influence matrix method to determine the rational completion hanger force of bowstring arch bridges by research of traditional calculating method of rational completion hanger force of bowstring arch bridges. Rigid hanger method is adopted to make rigidity of hanger a super number, obtaining vertical displacement of hangers and collar beams crossing and influence matrix of hangers ...