铁道科学与工程学报Issue(4)：6-13,8.
刚性系杆拱桥成桥吊杆索力优化方法的适用性研究
Applicability analysis of opti mu m methods for hanger forces of rigid tied-arch bridges at co mpletion stage
摘要
Abstract
Aiming at the optimum issue of hanger forces for rigid tied-arch bridges at completion stage,some optimum approaches were reviewed and utilized in this paper for determining the optimal hanger forces of a real typical rigid tied-arch bridge.Comparing the hanger forces and corresponding bending moments of tied beam and arch rib,the applicability of these methods for tied-arch bridges was discussed.The research results show that the rigid continuous girder method and the zero displacement method are not suitable for this kind of tied-arch bridge and the internal force equilibrium approach and the stiff hanger method are not applicable for this typical rigid tied-arch bridge used in the paper.Meanwhile,the unconstrained minimum bending strain energy method and the minimum bending moment way are reasonable in the preliminary design stage due to their sim-plicity and the rationality of computing results.Moreover,the constrained minimum bending strain energy ap-proach is applicable in the working drawing design stage and in the process of construction monitoring since its computing results are more rational than ones determined by those unconstrained methods.关键词
刚性系杆拱桥/吊杆索力优化/合理成桥状态/适用性Key words
rigid tied-arch bridges/optimization of hanger forces/rational completion stage/applicability分类
交通工程引用本文复制引用
傅金龙,黄天立..刚性系杆拱桥成桥吊杆索力优化方法的适用性研究[J].铁道科学与工程学报,2014,(4):6-13,8.基金项目
国家自然科学基金资助项目 （）
