| 在役大六角高强螺栓连接副现场扭矩试验分析 |
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| 引用本文： | 程书力,扶名福,袁志军,刘伟平.在役大六角高强螺栓连接副现场扭矩试验分析[J].南昌大学学报(工科版),2007,29(3):287-290. |
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| 作者姓名： | 程书力 扶名福 袁志军 刘伟平 |
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| 作者单位： | 南昌大学,建筑工程学院,江西,南昌,330031 |
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| 摘 要： | 通过某工程实例,对在役大六角高强螺栓连接副现场扭矩复验结果进行了理论分析,找出了高强螺栓预拉力损失的主要原因:一是现场扭矩检测时间过早,导致预拉力损失不稳定,前期损失较多;二是使用中维护不够.为减少高强螺栓预拉应变松弛和预拉应力损失对结构的不利影响,给出了延迟现场扭矩检测的时间区间和正确维护的方法.
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| 关 键 词： | 大六角高强螺栓 现场扭矩 预拉应力 |
| 文章编号： | 1006-0456（2007）03-0287-04 |
| 收稿时间： | 2006-12-12 |
| 修稿时间： | 2006年12月12 |
Test Research on the Torsion Moment on the Scene of High-strength Bolts on the Structure |
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| CHENG Shu-li,FU Ming-fu,YUAN Zhi-jun,LIU Wei-ping.Test Research on the Torsion Moment on the Scene of High-strength Bolts on the Structure[J].Journal of Nanchang University(Engineering & Technology Edition),2007,29(3):287-290. |
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| Authors: | CHENG Shu-li FU Ming-fu YUAN Zhi-jun LIU Wei-ping |
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| Affiliation: | School of Architectural Engineering, Nanchang University, Nanchang 330031, China |
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| Abstract: | Having analyzed the check result of the torsional moment on the scene of the big hexangular high-stength bolts conjuncted in the service based on the engineering example,the paper gives two reseans about the lose of pretension:the earlier checking of the moment and the inaccurate maintenance method.For reducing the disadvantageous influence of the the relaxation of strain and the lose of pretension on the structure,the time span of delaying scene torsional moment checx and accurate maintence method are given. |
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| Keywords: | high-strength bolts torsion moment on the scene pretension |
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