[1]杨明,黄侨,叶见曙,等.波纹钢腹板体外预应力箱梁桥钢制块式转向装置力学性能[J].东南大学学报(自然科学版),2011,41(1):174-180.[doi:10.3969/j.issn.1001-0505.2011.01.034]
 Yang Ming,Huang Qiao,Ye Jianshu,et al.Mechanical characters of steel block deviator used in externally prestressed box girder with corrugated webs[J].Journal of Southeast University (Natural Science Edition),2011,41(1):174-180.[doi:10.3969/j.issn.1001-0505.2011.01.034]
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波纹钢腹板体外预应力箱梁桥钢制块式转向装置力学性能()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
41
期数:
2011年第1期
页码:
174-180
栏目:
交通运输工程
出版日期:
2011-01-20

文章信息/Info

Title:
Mechanical characters of steel block deviator used in externally prestressed box girder with corrugated webs
作者:
杨明1黄侨1叶见曙1张树仁2
(1东南大学交通学院,南京 210096)
(2哈尔滨工业大学交通科学与工程学院,哈尔滨 150090)
Author(s):
Yang Ming1Huang Qiao1Ye Jianshu1Zhang Shuren2
(1School of Transportation, Southeast University, Nanjing 210096, China)
(2School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, China)
关键词:
波纹钢腹板体外预应力箱梁转向装置力学性能
Keywords:
externally prestressed box girder with corrugated webs deviator mechanical characters
分类号:
U448.21+3
DOI:
10.3969/j.issn.1001-0505.2011.01.034
摘要:
采用有限元分析与实验研究相结合的方法,研究用于波纹钢腹板体外预应力箱梁桥的钢制块式转向装置的承载机理、受力特点、破坏形态、极限承载力等力学特性.在有限元分析中,采用梁段模型模拟分析转向装置对钢筋混凝土翼缘板的局部作用,采用转向装置局部模型模拟分析转向装置从加载开始直至破坏的受力全过程.实验室实验对有限元分析的结果进行了验证,二者结果吻合良好.研究表明,钢制块式转向装置对结构的局部影响主要集中在翼缘板与转向块连接的部分及其附近区域内; 钢制块式转向装置的破坏由环向钢筋受拉破坏引起; 环向钢筋的受力表现出明显的偏心受拉构件的受力特点.
Abstract:
Mechanical performance, such as load bearing mechanism, mechanical characters, damage form and ultimate load capacity of steel block deviator used in externally prestressed box girder with corrugated webs was studied using FEA(finite element analysis) and experimental methods. In FEA, local influence of girder caused by deviator was studied in the whole beam model; mechanical behaviors of deviator from loading to damage were studied in the local deviator model. Experiment was conducted to verify the FEA results and it is shown that both results are in good agreement. The research indicates that the local influence in concrete flange caused by deviator concentrates in the joints and the nearby location of deviator and concrete flange; the damage of deviator is caused by tensile damage of round reinforcements; the round reinforcements show obvious characteristics of eccentric tension member.

参考文献/References:

[1] 杨明,孙筠,张树仁,等.波纹钢腹板体外预应力箱梁桥的发展与展望[J].公路交通科技,2006,23(12):72-75.
  Yang Ming,Sun Yun,Zhang Shuren,et al.Development and prospect of externally prestressed box beams with corrugated steel webs [J].Journal of Highway and Transportation Research and Development,2006,23(12):72-75.(in Chinese)
[2] Sayed-Ahmed E Y.Behaviour of steel and (or) composite girders with corrugated steel webs [J].Canadian Journal of Civil Engineering,2001,28(4):656-672.
[3] Mo Y L,Jeng C H,Krawinkler H.Experimental and analytical studies of innovative prestressed concrete box-girder bridges [J].Materials and Structures,2003,36(2):99-107.
[4] Ibrahim S A,El-Dakhakhni W W,Elgaaly M.Behavior of bridge girders with corrugated webs under monotonic and cyclic loading[J].Engineering Structures,2006,28(4):1941-1955.
[5] Metwally A E,Loov R E.Corrugated steel webs for prestressed concrete girders [J].Materials and Structures,2003,36(2):127-134.
[6] 李宏江.波形钢腹板箱梁扭转与畸变的试验研究及分析[D].南京:东南大学交通学院,2003.
[7] 杨明.波纹钢腹板箱梁桥转向装置和剪力连接件理论与实验研究[D].哈尔滨:哈尔滨工业大学交通科学与工程学院,2008.
[8] 刘玉擎.组合结构桥梁[M].北京:人民交通出版社,2005:125-164.

备注/Memo

备注/Memo:
作者简介:杨明(1980—),男,博士;黄侨(联系人),男,博士,教授,博士生导师,qhuanghit@126.com.
基金项目:国家高技术研究发展计划(863计划)资助项目(2007AA11Z106)、交通部西部科技资助项目(200538181215).
引文格式: 杨明,黄侨,叶见曙,等.波纹钢腹板体外预应力箱梁桥钢制块式转向装置力学性能[J].东南大学学报:自然科学版,2010,41(1):0174-180.[doi:10.3969/j.issn.1001-0505.2011.01.034]
更新日期/Last Update: 2011-01-20