| 钢管混凝土拱—钢腹板PC箱型系梁组合桥梁 |
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| 引用本文： | 孙潮,张凡,陈宝春,吴庆雄. 钢管混凝土拱—钢腹板PC箱型系梁组合桥梁[J]. 广西大学学报(自然科学版), 2012, 0(4): 737-743 |
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| 作者姓名： | 孙潮 张凡 陈宝春 吴庆雄 |
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| 作者单位： | 福州大学土木工程学院;安徽宣州区经济开发区管委会建设管理局 |
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| 基金项目： | 交通部西部交通建设科技项目(2008-318-000-13) |
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| 摘 要： | 为减轻钢管混凝土拱梁组合体系桥的自重,提出了采用钢腹板(平钢腹板或波纹钢腹板)代替PC箱形系梁的混凝土腹板,从而形成钢腹板PC箱形系梁。以一座已建成的钢管混凝土拱梁组合体系桥为原桥,进行了钢腹板PC箱形系梁的试设计研究。结果表明,试设计桥由于减小了自重下的内力,降低了面内自振频率,从而改善了原桥的静力和抗震性能。此外,试设计桥经济性好且方便施工,说明钢管混凝土拱—钢腹板PC箱型系梁组合桥梁是可行的。
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| 关 键 词： | 拱梁组合桥 钢管混凝土 波形钢腹板 平钢腹板 系梁 试设计 |
CFST arch and steel-web prestressed concrete box girder composite bridge |
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| SUN Chao,ZHANG Fan,CHEN Bao-chun,WU Qing-xiong. CFST arch and steel-web prestressed concrete box girder composite bridge[J]. Journal of Guangxi University(Natural Science Edition), 2012, 0(4): 737-743 |
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| Authors: | SUN Chao ZHANG Fan CHEN Bao-chun WU Qing-xiong |
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| Affiliation: | 1(1.College of Civil Engineering,Fuzhou University,Fuzhou 350108,China; 2.Construction Administration of Xuanzhou Economic Development Zone,Xuancheng 242000,China) |
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| Abstract: | In order to reduce the self-weight of CFST arch-girder composite bridges,steel webs(corrugated or planar steel web) are introduced to replace concrete webs in the prestressed concrete tie beams.Taking a complete CFST arch-girder composite bridge as the prototype,a trial design of CFST arch-girder composite bridges with steel-web PC tie beam was carried out.The results indicate that the static and seismic performance of the trial design bridge can be improved due to the reduction of the internal force under dead load and the in-plane natural vibration frequency.In addition,the trial design bridge can be easily and economically built.CFST arch and steel-web prestressed concrete box girder composite bridges are feasible. |
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| Keywords: | arch-girder combination bridges concrete filled steel tube(CFST) corrugated steel webs planar steel webs tie beam trial design |
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