基于波形钢板的钢箱梁正交异性桥面板静力特性研究
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摘要
提出一种基于波形钢板的新型钢箱梁正交异性桥面板结构形式,该新型桥面板结构包括上顶板、波形钢板加劲肋、下顶板和横肋。通过有限元方法对新型正交异性板的横向传力特性进行分析,并研究了顶板厚度、横肋间距、横肋厚度等参数变化对新型结构疲劳热点应力的影响规律。研究结果表明:新型正交异性板具有双向受力的特点,与传统正交异性桥面板的受力模式明显不同,因此结构设计时需要加大横肋间距,才能充分发挥桥面板较明显的荷载横向分配特性;同时,基于构造参数的影响,提出了适合新型结构的构造参数,以充分发挥新型结构的优势,避免过于复杂的焊接构造。
A new kind of orthotropic steel deck with corrugated steel plate was proposed. The fundamental elements of the new deck includes upper steel plate, corrugated steel plate(used to replace U-rib), lower steel plate and transverse rib. This paper mainly analyzed the characteristics of transverse force transmission and the influence of the parameters, including roof thickness, transverse rib spacing and transverse rib thickness on the fatigue life of new structural hot spot stress, by using finite element method. The research indicated that the new orthotropic deck had the characteristics of bi-directional force transmission, which was obviously different from the traditional deck. Therefore, the spacing between the ribs needed to be increased in order to make full use of the load distribution characteristics of the new bridge deck; at the same time, the tectonic parameters suitable for the new structure were proposed, in order to make full use of the advantages of the new structure, and to avoid over complicated welding joints.
A new kind of orthotropic steel deck with corrugated steel plate was proposed. The fundamental elements of the new deck includes upper steel plate, corrugated steel plate(used to replace U-rib), lower steel plate and transverse rib. This paper mainly analyzed the characteristics of transverse force transmission and the influence of the parameters, including roof thickness, transverse rib spacing and transverse rib thickness on the fatigue life of new structural hot spot stress, by using finite element method. The research indicated that the new orthotropic deck had the characteristics of bi-directional force transmission, which was obviously different from the traditional deck. Therefore, the spacing between the ribs needed to be increased in order to make full use of the load distribution characteristics of the new bridge deck; at the same time, the tectonic parameters suitable for the new structure were proposed, in order to make full use of the advantages of the new structure, and to avoid over complicated welding joints.
引文
[1] 王春生, 付炳宁, 张芹,等. 正交异性钢桥面板足尺疲劳试验[J]. 中国公路学报, 2013, 26(2):69-76.
[2] 曾志斌. 正交异性钢桥面板典型疲劳裂纹分类及其原因分析[J]. 钢结构, 2011, 26(2):9-15.
[3] JONG F B P D. Over View Fatigue Phenomenon in Orthotropic Bridge Decks in the Netherlands[C]//2004 Orthotropic Bridge Conference. Sacramento, USA: 2004: 31-79.
[4] 张玉玲, 辛学忠, 刘晓光. 对正交异性钢桥面板构造抗疲劳设计方法的分析[J]. 钢结构, 2009, 24(5):33-37.
[5] 张清华, 卜一之, 李乔. 正交异性钢桥面板疲劳问题的研究进展[J]. 中国公路学报, 2017, 30(3):14-30.
[6] KOZY B M, CONNOR R J, PATERSON D, et al. Proposed Revisions to AASHTO-LRFD Bridge Design Specifications for Orthotropic Steel Deck Bridges[J]. Journal of Bridge Engineering, 2011, 16(6):759-767.
[7] MIZUGUCHI K, YAMADA K, IWASAKI M, et al. Rationalized Steel Deck Structure and Large Model Test for Developing New Type of Structure[C]//Orthotropic Bridge Conference. Sacramento, USA:2004: 675-688.
[8] 张允士, 李法雄, 熊锋,等. 正交异性钢桥面板疲劳裂纹成因分析及控制[J]. 公路交通科技, 2013, 30(8):75-80.
[9] 李嘉, 冯啸天, 邵旭东,等. STC钢桥面铺装新体系的力学计算与实桥试验对比分析[J]. 中国公路学报, 2014, 27(3):39-44.
[10] 李文光, 邵旭东, 方恒,等. 钢-UHPC组合板受弯性能的试验研究[J]. 土木工程学报, 2015(11):93-102.
[11] 单成林. 聚氨酯-钢板夹层结构正交异性桥面板力学性能分析[J]. 武汉理工大学学报(交通科学与工程版), 2010, 34(4):674-678.
[12] 邵旭东, 曹君辉, 易笃韬,等. 正交异性钢板-薄层RPC组合桥面基本性能研究[J]. 中国公路学报, 2012, 25(2):40-45.
[13] 沈满德, 陈良益, 何俊华,等. 基于优化设计的单元尺寸确定方法[J]. 微计算机信息, 2007, 23(34):239-241.
[14] 宋少云, 尹芳. 有限元网格划分中的圣维南原理及其应用[J]. 机械设计与制造, 2012(8):63-65.
[15] 中交公路规划设计院有限公司. 公路桥涵设计通用规范:JTG D60—2015[S]. 北京:人民交通出版社, 2015.
[16] 姚玲森.桥梁工程[M].北京:人民交通出版社,2005:106.
[2] 曾志斌. 正交异性钢桥面板典型疲劳裂纹分类及其原因分析[J]. 钢结构, 2011, 26(2):9-15.
[3] JONG F B P D. Over View Fatigue Phenomenon in Orthotropic Bridge Decks in the Netherlands[C]//2004 Orthotropic Bridge Conference. Sacramento, USA: 2004: 31-79.
[4] 张玉玲, 辛学忠, 刘晓光. 对正交异性钢桥面板构造抗疲劳设计方法的分析[J]. 钢结构, 2009, 24(5):33-37.
[5] 张清华, 卜一之, 李乔. 正交异性钢桥面板疲劳问题的研究进展[J]. 中国公路学报, 2017, 30(3):14-30.
[6] KOZY B M, CONNOR R J, PATERSON D, et al. Proposed Revisions to AASHTO-LRFD Bridge Design Specifications for Orthotropic Steel Deck Bridges[J]. Journal of Bridge Engineering, 2011, 16(6):759-767.
[7] MIZUGUCHI K, YAMADA K, IWASAKI M, et al. Rationalized Steel Deck Structure and Large Model Test for Developing New Type of Structure[C]//Orthotropic Bridge Conference. Sacramento, USA:2004: 675-688.
[8] 张允士, 李法雄, 熊锋,等. 正交异性钢桥面板疲劳裂纹成因分析及控制[J]. 公路交通科技, 2013, 30(8):75-80.
[9] 李嘉, 冯啸天, 邵旭东,等. STC钢桥面铺装新体系的力学计算与实桥试验对比分析[J]. 中国公路学报, 2014, 27(3):39-44.
[10] 李文光, 邵旭东, 方恒,等. 钢-UHPC组合板受弯性能的试验研究[J]. 土木工程学报, 2015(11):93-102.
[11] 单成林. 聚氨酯-钢板夹层结构正交异性桥面板力学性能分析[J]. 武汉理工大学学报(交通科学与工程版), 2010, 34(4):674-678.
[12] 邵旭东, 曹君辉, 易笃韬,等. 正交异性钢板-薄层RPC组合桥面基本性能研究[J]. 中国公路学报, 2012, 25(2):40-45.
[13] 沈满德, 陈良益, 何俊华,等. 基于优化设计的单元尺寸确定方法[J]. 微计算机信息, 2007, 23(34):239-241.
[14] 宋少云, 尹芳. 有限元网格划分中的圣维南原理及其应用[J]. 机械设计与制造, 2012(8):63-65.
[15] 中交公路规划设计院有限公司. 公路桥涵设计通用规范:JTG D60—2015[S]. 北京:人民交通出版社, 2015.
[16] 姚玲森.桥梁工程[M].北京:人民交通出版社,2005:106.