| 桥塔钢-混结合段剪力连接件承载力试验研究 |
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| 引用本文： | 白光亮,唐光武,周长晓.桥塔钢-混结合段剪力连接件承载力试验研究[J].桥梁建设,2010(1). |
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| 作者姓名： | 白光亮 唐光武 周长晓 |
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| 作者单位： | 招商局重庆交通科研设计院有限公司,桥梁工程结构动力学国家重点实验室,桥梁结构抗震技术交通行业重点实验室,重庆,430067 |
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| 摘 要： | 为确保斜拉桥桥塔钢-混结合段连接的安全可靠,应选择合适的剪力连接件。结合连岛工程跨海斜拉桥索塔锚固区的设计,比较不同极限承载力公式的差异。对栓钉连接件进行模型试验研究,试验得到栓钉的荷载~滑移量曲线。重点研究栓钉的抗剪承载力及破坏形态等,并将试验结果与所有公式的计算结果进行比较。试验结果表明:栓钉连接件以栓钉受弯剪破坏为主,具有良好的延性,在破坏前有明显的屈服过程。在承载力方面,群钉试验得到的用于桥塔钢-混结合段的单钉极限承载力平均比《钢结构设计规范》(GB 50017-2003)的计算值高32%左右。
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| 关 键 词： | 斜拉桥 桥塔 钢-混结合段 栓钉连接件 极限承载力 模型试验 |
Test Study of Bearing Capacity of Shear Connectors Used for Steel and Concrete Composite Segment in Bridge Pylon |
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| BAI Guang-liang,TANG Guang-wu,ZHOU Chang-xiao.Test Study of Bearing Capacity of Shear Connectors Used for Steel and Concrete Composite Segment in Bridge Pylon[J].Bridge Construction,2010(1). |
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| Authors: | BAI Guang-liang TANG Guang-wu ZHOU Chang-xiao |
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| Institution: | BAI+Guang-liang,TANG+Guang-wu,ZHOU+Chang-xiao(State+Key+Laboratory+of+Bridge+Engineering+Structure+Dynamics,Key+Laboratory+of+Bridge+StructureSeismic+Resistance+Techniques+of+Communication+Trades,Chongqing+Communication+Research+%26Design+Institute+Co.,Ltd.,China+Merchants+Group,Chongqing+430067,China) |
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| Abstract: | To ensure the safe and reliable connection of the steel and concrete composite segment in pylon of cable-stayed bridge,the appropriate shear connectors should be chosen.With reference to the design of the cable-to-pylon anchor zone of a cable-stayed sea-crossing bridge of a island link project,the differences of the formulas for calculation of the ultimate bearing capacity of the connectors were compared.The model tests for the stud connectors were made and the load~slip curves of the connectors were obtain... |
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| Keywords: | cable-stayed bridge pylon steel and concrete composite segment stud connector ultimate bearing capacity model test |
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