力学与实践 ›› 2005, Vol. 27 ›› Issue (5): 0-0.DOI: 10.6052/1000-0992-2004-446

• 应用研究 •    

空腹式刚架拱桥梁拱节点三维光弹性试验研究

郑则群 陈日齐 房贞政   

  1. (福州大学结构工程研究所 福州市工业路523号 350002 (福州大学结构工程研究所 福州市工业路523号 350002 (福州大学结构工程研究所 福州市工业路523号 350002
  • 收稿日期:2004-11-24 修回日期:1900-01-01 出版日期:2005-10-10 发布日期:2005-10-10

STUDY ON FLOW AUGMENTATION AND WATER ENVIRONMENT REHABILITATION FOR SUZHOU CREEK

  • Received:2004-11-24 Revised:1900-01-01 Online:2005-10-10 Published:2005-10-10

摘要: 福州市尤溪洲闽江大桥是国内首座在拱肋(圈)上不设立柱和斜撑的空腹式刚架拱桥. 作 为空腹式刚架拱桥受力关键部位------梁与拱的连接部位,受力及构造复杂. 通过三维光 弹性试验,研究该梁、拱结合部的内力传递、应力集中、局部应力分布规律,为空腹式刚 架拱桥节点设计、施工提供依据.

关键词: 刚架拱桥, 空腹式, 梁拱节点, 三维光弹性试

Abstract: Based on the history and the present state of Shanghai Suzhou Creek, the pollution sources and hydraulic performance were discussed and the sources of its serious water quality pollution were analyzed. Then, some problems were addressed on environmental fluid mechanics with respect to Suzhou Creek rehabilitation, such as mathematical models for pollutant transfer and their main parameters, unsteady tide flow features of Suzhou Creek, optimization method of water environment capacity for Suzhou Creek and its river-net system. Finally, the common features of the rivers located at estuary, such as river slope flat, tidal flow effect, river network structure and intense pollution sources were analyzed.

Key words: water pollution, plain river network, tidal flow,