【作者】 熊学玉； 汪继恕； 汪克来；

【Author】 Xiong Xueyu , Wang Jishu , Wang Kelai (College of Civil Engineering, Tongji University, Shanghai 200092, China; Hangzhou Municipal Facilities Supervision and Management Center , Hangzhou 310003,China)

【机构】 同济大学土木工程学院； 杭州市市政设施监管中心；

【摘要】 对于运营多年的拱桥,其线形和内力会偏离原来的设计线形与内力。在索力优化理论的基础上, 利用最小余能原理建立了通过更换吊杆来改善全桥线形和内力的理论和方法,并将该方法应用于一座系杆拱桥的索力调整中,取得了良好的应用效果。更多还原

【Abstract】 The arch bridge geometry and internal force will deviate from the status of primary bridge after the bridge served a few years. Based on cable forces optimization theory, utilizing minimal remnant energy principle, the theory to improve bridge shape and internal forces of primary bridge by replacing suspender is founded. The method is implemented to adjust the suspender internal force of an arch bridge. The result of optimization of the suspender internal force shows that this method is effective and successful.更多还原