| 利用冰的挠曲强度特性减轻桥墩冰压力 |
| |
| 引用本文： | 孙宗富. 利用冰的挠曲强度特性减轻桥墩冰压力[J]. 北京交通大学学报(自然科学版), 1987, 0(2) |
| |
| 作者姓名： | 孙宗富 |
| |
| 作者单位： | 北方交通大学土木建筑系 |
| |
| 摘 要： | 浮冰对桥墩的作用力在某些情况下是一项重要的荷载。冰的挠曲强度远小于其挤压强度。在桥墩上设置破冰锥体,可大大减轻浮冰的水平压力,同时还可把大块浮冰破碎成小块浮冰,有可能减少产生冰坝、冰塞。在北方地区河道中修建大跨度桥梁时,采用此方案,可能产生有利的效果。这一设想也可应用到有类似冰害的结构中。
|
| 关 键 词： | 浮冰 破冰锥体 挠曲强度 |
Reducing sheet Ice Loads on Piers by Utilizing Its Bending Strength |
| |
| Sun Zongfu. Reducing sheet Ice Loads on Piers by Utilizing Its Bending Strength[J]. JOURNAL OF BEIJING JIAOTONG UNIVERSITY, 1987, 0(2) |
| |
| Authors: | Sun Zongfu |
| |
| Abstract: | Sheet ice loads on bridge piers are important in some cases. Ben- ding strength of ice sheet is far less than its crushing strength. By utilizing conical structure on piers, ice loads can be reduced significantly It also has the advantages to break the big ice sheet into small pieces so that ice jams could be released.In northern region,especially for long span bridges, its benefits could be obvious. The principle can be applied to structures which have similar ice problems. |
| |
| Keywords: | sheet ice loads bending strength conical structures |
| 本文献已被 CNKI 等数据库收录！ |
|
