全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

桥梁悬臂拼装施工中钢箱梁制造尺寸的确定

, PP. 50-56

Keywords: 桥梁工程,钢箱梁,施工控制,悬臂拼装,无应力尺寸,制造线形,预拼线形

Full-Text   Cite this paper   Add to My Lib

Abstract:

?针对工程计算中确定悬臂拼装施工的钢箱梁段制造尺寸时考虑不够全面的状况,综合考虑结构整体变形和梁段局部变形的影响,根据设计目标和施工要求,提出端截面转角补偿的方法,计算梁段2个端截面处边腹板的制造倾角,进而确定梁段的制造线形和预拼线形,提出了梁段端截面处的顶、底板长度补偿和梁段轴向长度补偿的计算方法,并对广州黄埔大桥斜拉桥进行实际计算分析。研究结果表明:若忽略梁段局部变形,则预拼线形的误差会随着悬臂拼装的进行不断放大,梁段顶、底板处的焊缝质量和焊接收缩变形将难以控制。

References

[1]  GIMSING N J.Cable Supported Bridges:Concept and
[2]  何 畏,唐 亮,强士中,等.大跨度焊接钢箱梁斜拉桥施工控制技术研究及应用[J].桥梁建设,2002(5):14-18.
[3]  YIU P K A,BROTTON D M.Computation of Fabrication Dimensions for Cable-stayed Bridges[J].The Structural Engineer,1988,66(15):237-243.
[4]  LIANG Peng,XIAO Ru-cheng,XU Yue.Assembled Geometry and Unstrained Geometry of Super Long Span Cable-stayed Bridges[J].Journal of Chang'an University:Natural Science Edition,2006,26(4):49-53.
[5]  LI Qiao,TANG Liang.Determination of Fabricated Geometry and Assembled Geometry of Cantilever Erection Bridge[C]//Branch of Bridge and Structural Engineering,China Civil Engineering Society.The 16th National Bridge Academic Symposium:Volume 2.Beijing:China Communications Press,2004:297-302.
[6]  ZHANG Jian-min,XIAO Ru-cheng.Study on the Prearranged Angle of Girders in Construction State for a Thousand-meter Scale Cable-stayed Bridge[J].Chinese Journal of Computational Mechanics,2005,22(5):618-622.
[7]  XU Jin-yong,YAN Quan-sheng,WANG Wei-feng,et al.Section Deformation of Flat Hollow Steel Box Girder of Cable-stayed Bridge During Cantilever Erection[J].Journal of South China University of Technology:Natural Science Edition,2007,35(3):127-131.
[8]  Design[M].2nd ed.New York:John Wiley & Sons Inc,1997.
[9]  HE Wei,TANG Liang,QIANG Shi-zhong,et al.Research and Application of the Construction Control Technology in Large Span Cable-stayed Bridges with Welded Steel Box Girder[J].Bridge Construction,2002(5):14-18.
[10]  梁 鹏,肖汝诚,徐 岳.超大跨度斜拉桥的安装构形与无应力构形[J].长安大学学报:自然科学版,2006,26(4):49-53.
[11]  李 乔,唐 亮.悬臂拼装桥梁制造与安装线形的确定[C]//中国土木工程学会桥梁及结构工程分会.第十六届全国桥梁学术会议论文集:下册.北京:人民交通出版社,2004:297-302.
[12]  张建民,肖汝诚.千米级斜拉桥施工过程中主梁的预转折角研究[J].计算力学学报,2005,22(5):618-622.
[13]  徐金勇,颜全胜,王卫锋,等.斜拉桥扁平空腹钢箱梁悬拼施工时的截面变形[J].华南理工大学学报:自然科学版,2007,35(3):127-131.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133