[1]高小妮,贺拴海,宋一凡..基于两类结构形式的索梁锚固区力学行为分析[J].郑州大学学报(工学版),2012,33(06):59-63.[doi:10.3969/j.issn.1671-6833.2012.06.014]
　GAO Xiaoni,HE Shuanhai,SONG Yifan.Mechanical Behavior Analysis of Cable-Girder Anchorage Based onTwo Kinds of Structure Form[J].Journal of Zhengzhou University (Engineering Science),2012,33(06):59-63.[doi:10.3969/j.issn.1671-6833.2012.06.014]
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基于两类结构形式的索梁锚固区力学行为分析()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
33
期数:
2012年06期
页码:
59-63
栏目:
出版日期:
2012-11-10

文章信息/Info

Title:
Mechanical Behavior Analysis of Cable-Girder Anchorage Based onTwo Kinds of Structure Form
作者:
高小妮; 贺拴海; 宋一凡.
交通运输部公路科学研究院,北京,100088, 长安大学桥梁与隧道陕西省重点实验室,陕西西安,710064
Author(s):
GAO Xiaoni; HE Shuanhai; SONG Yifan
1. Research lnstitute of Highway, Ministry of Transport, Beijing 100088, China;2. Key Laboratory for Bridge and Tunnel ofShaanxi Province,Chang’an University,Xi’an 710064,China
关键词:
桥梁工程;  锚固区;  非线性;  应力;  稳定性
Keywords:
bridge engineering;  anchorage zone;  nonlinear;  stress;  stability
分类号:
U448.27
DOI:
10.3969/j.issn.1671-6833.2012.06.014
摘要:
针对目前索梁锚固区数值仿真分析节段长度选取的分歧,根据某在建斜拉-自锚式悬索组合体系桥吊杆锚固区的结构特点,采用2类锚固构造和4种锚固区节段长度,建立8个壳单元模型.对不同模型中的应力、变位和结构整体屈曲特性进行对比分析.分析结果表明:采用相同锚固结构形式时,不同锚固区节段长度对锚固区应力分布情况影响较大；随着节段长度的增加,锚固区整体变位的变化趋于稳定；节段长度的选取对锚固区结构屈曲特性影响显著.不论采用何种锚固构造设置,当锚固区节段长度选取远离锚固区2倍梁高时,能较准确反应结构的受力情况.所得结论可供锚固区数值模拟及模型试验节段选取时参考.
Abstract:
According to the deficiency of numerical simulation analysis on segment selection in existing suspender anchorage zone and the characteristie of suspender anchorage zone structure in existing cable-stayedand self-anchored suspension combination bridge, 8 shell element models analysis of two anchorage zone struc-tures about four diffident anchor segment length were established. Stress distribution, displacement and buck.ling behavior of anchorage zone on the 8 models were compared. The comparison shows that, when the sameanchorage structure form is adopted, the influences of anchor segment length on the stress distribution of an.chorage zone are large ; the variation of overall dellection in the anchorage zone tends to be stable with the segment length increase; the segment length section have significant elfect on buckling behavior of anchor strucNo matter what kind of anchor construction set is adopted, the selection length of anchor segment is attire.least 2 times height of girder away from anchorage zone in order to reflect mechanical characteristics of anchorstructure. The results can be used as a reference for numerical simulation and model tests of anchor structure.

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更新日期/Last Update: 1900-01-01