双柱型花瓶墩系梁裂缝加固方法研究
Research on Strengthening Method of Beam Cracks in Double-Column Vase-Style Piers
摘要:
针对某城市高架桥双柱型花瓶墩系梁的裂缝问题,根据实际情况制定了加固方案,并在此基础上对加固方案进行了详细的设计。通过有限元软件Ansys分析,明确了加固方案的合理性,同时根据规范分析了钢锚箱、锚固螺杆以及焊缝的受力状态。最后,总结了加固施工要点。
Abstract:
Aiming at the crack problem for the beam of the double-column vase-style pier of a city viaduct, the reinforcement scheme was formulated according to the actual situation. On this basis, the details of the reinforcement scheme were given. Through the analysis of the finite element software Ansys, the rationality of the reinforcement scheme was verified. Meanwhile, the stress state of the steel anchor box, the anchor screw and the weld was analyzed. Finally, the main points of strengthening construction were summarized.
参考文献
|
[1]
|
朱骄健. 增大截面法加固偏心受压构件的设计计算方法研究[D]: [硕士学位论文]. 南京: 东南大学, 2014.
|
|
[2]
|
王新苗. 粘贴钢板加固法的应用[J]. 中国新技术新产品, 2015(7): 119.
|
|
[3]
|
叶见曙, 安琳, 钱培舒. 碳纤维增强复合材料加固桥梁新技术[J]. 中国公路, 2002(22): 45-46.
|
|
[4]
|
牛斌. 铁路混凝土梁的体外预应力加固[J]. 铁道建筑, 1997(12): 7.
|
|
[5]
|
徐晓燕. 关于普通钢筋混凝土箱梁内部增设体外预应力钢束的方案设计及施工要点[J]. 华东公路, 2014(2): 26-29.
|
|
[6]
|
李科强. 谈大桥箱梁增加体外预应力束的应用[J]. 中国科技纵横, 2009(7): 114.
|
|
[7]
|
JGJ 145-2013. 混凝土结构后锚固技术规程[S]. 北京: 中国建筑工业出版社, 2013.
|
|
[8]
|
GB 50017-2003. 钢结构设计规范[S]. 北京: 中国计划出版社, 2003.
|