铁道科学与工程学报2017，Vol.14Issue(8)：1681-1688,8.
尼尔森体系拱桥在城市人行天桥中的应用研究
The application of Nielsen System arch bridge in the city pedestrian bridge
摘要
Abstract
The basket-handle through tied arch bridge of Nielsen system used in pedestrian bridge is a relatively new form. Numerical simulation and field measurement of this kind of bridge was analyzed. The stress analysis of a Nielsen-system pedestrian bridge approved its long span capability, high global stiffness and super stability. Another important factor in pedestrian bridge design is comfort assessment. Based on the free vibration characteristics, a Nielsen-system arch bridge with cross suspenders showed a larger fundamental frequency and thus was of higher comfort degree compared with a Lohse arch bridge with vertical suspenders. By measuring the dynamic characteristics of bridge structure, the Nielsen system arch bridge was verified to meet national standard acceleration limits.关键词
尼尔森体系/拱桥/人行桥/舒适度/现场实测Key words
Nielsen System/tied-arch/pedestrian bridge/vibration comfort/field measurement分类
交通工程引用本文复制引用
常柱刚..尼尔森体系拱桥在城市人行天桥中的应用研究[J].铁道科学与工程学报,2017,14(8):1681-1688,8.基金项目
国家自然科学基金资助项目(51478472) （51478472）
