| 钢板-混凝土空心组合桥面板疲劳性能试验 |
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| 引用本文： | 杨勇,曾苏生,薛建阳,聂建国.钢板-混凝土空心组合桥面板疲劳性能试验[J].中国公路学报,2011(3). |
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| 作者姓名： | 杨勇 曾苏生 薛建阳 聂建国 |
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| 作者单位： | 西安建筑科技大学土木工程学院;华侨大学土木工程学院;清华大学土木工程系; |
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| 基金项目： | 国家自然科学基金项目(50708040);国家自然科学基金项目(50978109) |
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| 摘 要： | 对7块钢板-轻骨料混凝土空心组合桥面板和2块钢板-普通混凝土空心组合桥面板进行了疲劳试验研究,主要考察了疲劳荷载作用下组合板中钢管的布置形式、疲劳荷载幅值、疲劳荷载上下限、疲劳加载次数及混凝土材料特性5个关键因素对空心组合桥面板疲劳破坏形态、疲劳刚度退化、疲劳动力响应及疲劳强度等疲劳性能的影响。结果表明:2种钢管布置形式的空心组合桥面板的疲劳破坏形态都是底部钢板发生疲劳断裂导致整体失效破坏;组合桥面板疲劳循坏加载次数主要由疲劳荷载幅值控制,与疲劳荷载上限关系不明显;钢板-普通混凝土组合桥面板疲劳性能优于钢板-轻骨料混凝土组合桥面板;组合桥面板疲劳破坏主要是由于底部钢板疲劳断裂破坏所致,在组合桥面板中未发现组合桥面板组合作用的明显疲劳破坏现象;组合桥面板疲劳寿命计算主要为底部钢板疲劳强度计算,可以采用基于疲劳荷载幅值方法所建立的钢结构疲劳寿命理论进行计算。
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| 关 键 词： | 桥梁工程 钢板-混凝土空心组合桥面板 疲劳试验 破坏形态 |
Fatigue Performance Test of Steel Plate-concrete Hollow Composite Deck |
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| YANG Yong,ZENG Su-sheng,XUE Jian-yang,NIE Jian-guo.Fatigue Performance Test of Steel Plate-concrete Hollow Composite Deck[J].China Journal of Highway and Transport,2011(3). |
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| Authors: | YANG Yong ZENG Su-sheng XUE Jian-yang NIE Jian-guo |
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| Institution: | YANG Yong1,2,ZENG Su-sheng1,XUE Jian-yang1,NIE Jian-guo3(1.School of Civil Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,Shaanxi,China,2.School of Civil Engineering,Huaqiao University,Quanzhou 362021,Fujian,3.Department of Civil Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | Fatigue tests of seven steel plate-light concrete hollow composite decks and two steel plate-common concrete composite decks were conducted.Five main factors,such as layout type of steel tube,fatigue load amplitude,upper and lower limit of fatigue load,fatigue load times and performance of concrete material were chosen,and their influences on fatigue failure mode,fatigue rigidity degeneration,fatigue dynamics response and fatigue strength of composite deck under fatigue load were studied.Results show that f... |
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| Keywords: | bridge engineering steel plate-concrete hollow composite deck fatigue test failure mode |
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