桥梁施工方法分析研究
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摘要
针对分别采用满堂支架施工和悬臂法施工设计的预应力混凝土连续梁桥进行确定性和可靠性对比分析,通过有限元程序对成桥阶段选取的典型截面可靠指标进行计算。结果表明,确定性分析和可靠性分析结果有不同的规律,不能单从确定性分析结果的大小来判断结构安全储备,需将确定性分析与可靠性分析相结合,才能对结构有合理准确的判断与评价。
The object of this paper is to study the deterministic and reliability analysis of the pre-stressed concrete continuous girder bridges designed by the full framing method construction and cantilever construction.The results of typical selected cross sections show that the different regularities exist in the deterministic and reliability analysis,which indicates that accuracy and reasonable assessment of structural safety statement must be based on the combination of deterministic and reliability analysis,not the deterministic analyzing.
The object of this paper is to study the deterministic and reliability analysis of the pre-stressed concrete continuous girder bridges designed by the full framing method construction and cantilever construction.The results of typical selected cross sections show that the different regularities exist in the deterministic and reliability analysis,which indicates that accuracy and reasonable assessment of structural safety statement must be based on the combination of deterministic and reliability analysis,not the deterministic analyzing.
引文
[1]徐岳,张丽芳,邹存俊,郑小燕.连续梁桥[M].北京:人民交通出版社,2012.
[2]赵长勇,崔凤坤,罗绪昌,董峰辉,骆佐龙.基于不同规范的移动模架逐孔施工连续梁桥确定性及可靠性对比分析[J].公路工程,2015-04-20.
[3]Buckland,Sexsmith.COMPARISON OF DESIGN LOADS FOR HIGHWAY BRIDGES.Canadian Journal of Civil Engineering.1981.
[4]戴竞,陆楸.预应力混凝土连续梁桥设计与施工[J].公路,1982(5):1-16.
[5]骆佐龙,董峰辉.连续梁桥悬臂施工状态可靠度分析[J].公路工程,2013,38(3):162-164.
[6]张建仁,郝海霞.预应力混凝土连续梁桥悬臂施工施工期可靠性分析[J].中南公路工程,2003,28(1):15-18.
[7]常海,曹正,保石才.预应力混凝土空心板桥动荷载试验分析[J].公路交通科技(应用技术版),2013(09).
[8]苗建宝,徐岳.基于不同规范的移动模架施工连续梁桥设计分析[J].中外公路,2012-10-19.
[9]ZENG H,BERT C W.Free vibration of discretely stiffened skew plates.International Journal of Structure Stability and Dynamics.2001.
[10]黄进军.公路桥梁规范汽车荷载效应比较研究[D].长沙:长沙理工大学,2008.
[11]Nowak AS.Calibration of LRFD bridge code.ASCE Journal of Structural Engineering 1995:121(8):1245-51.
[12]Chaw K W.Reliability and Performance-based Design by Artificial Neural Network[J].Advances in Engineering Software.2007,38:145.
[13]吕颖钊.在用梁桥结构承载力可靠度评估研究[D].西安:长安大学,2003.
[14]BSI.Steel,Concrete and Composite Bridge-Part 2:Specification for Loads.BS5400.1978.
[2]赵长勇,崔凤坤,罗绪昌,董峰辉,骆佐龙.基于不同规范的移动模架逐孔施工连续梁桥确定性及可靠性对比分析[J].公路工程,2015-04-20.
[3]Buckland,Sexsmith.COMPARISON OF DESIGN LOADS FOR HIGHWAY BRIDGES.Canadian Journal of Civil Engineering.1981.
[4]戴竞,陆楸.预应力混凝土连续梁桥设计与施工[J].公路,1982(5):1-16.
[5]骆佐龙,董峰辉.连续梁桥悬臂施工状态可靠度分析[J].公路工程,2013,38(3):162-164.
[6]张建仁,郝海霞.预应力混凝土连续梁桥悬臂施工施工期可靠性分析[J].中南公路工程,2003,28(1):15-18.
[7]常海,曹正,保石才.预应力混凝土空心板桥动荷载试验分析[J].公路交通科技(应用技术版),2013(09).
[8]苗建宝,徐岳.基于不同规范的移动模架施工连续梁桥设计分析[J].中外公路,2012-10-19.
[9]ZENG H,BERT C W.Free vibration of discretely stiffened skew plates.International Journal of Structure Stability and Dynamics.2001.
[10]黄进军.公路桥梁规范汽车荷载效应比较研究[D].长沙:长沙理工大学,2008.
[11]Nowak AS.Calibration of LRFD bridge code.ASCE Journal of Structural Engineering 1995:121(8):1245-51.
[12]Chaw K W.Reliability and Performance-based Design by Artificial Neural Network[J].Advances in Engineering Software.2007,38:145.
[13]吕颖钊.在用梁桥结构承载力可靠度评估研究[D].西安:长安大学,2003.
[14]BSI.Steel,Concrete and Composite Bridge-Part 2:Specification for Loads.BS5400.1978.