Design, Construction, and Shake Table Testing of a Steel Girder Bridge System with ABC Connections

Shoushtari Elmira; Saiidi M. Saiid; Itani Ahmad; Moustafa Mohamed A.

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Design, Construction, and Shake Table Testing of a Steel Girder Bridge System with ABC Connections

机译：具有ABC连接的钢梁桥系统的设计，施工和振动台测试

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A shake table experiment of a large-scale, two-span accelerated bridge construction (ABC) bridge model with steel superstructure incorporating six of the more promising ABC connections was conducted on shake tables at the University of Nevada, Reno. The objective was to investigate the seismic performance of the ABC connections integrated into a bridge system and to determine whether ABC bridges can demonstrate adequate load path, integrity, and constructability. The bridge model was subjected to successive bidirectional motions simulating a modified version of the Northridge 1994 earthquake record. Test results showed that the ABC bridge emulated the behavior of cast-in-place bridge columns by undergoing large inelastic deformations in a ductile manner by forming plastic hinges and extensive yielding of the longitudinal bars in the columns. Structural integrity was maintained in all connections through various earthquake levels. Construction procedure of the bridge model ensured the feasibility of handling and connecting different prefabricated members.

机译：在内华达大学里诺分校的振动台上进行了大型两跨加速桥结构（ABC）桥梁模型的振动台试验，该模型具有钢结构，并结合了六个较有希望的ABC连接。目的是研究集成到桥梁系统中的ABC连接的抗震性能，并确定ABC桥梁是否可以显示足够的荷载路径，完整性和可施工性。桥梁模型经受了连续的双向运动，模拟了Northridge 1994地震记录的修改版本。测试结果表明，ABC桥通过形成塑性铰链并在柱中纵筋大幅度屈服，以延性方式经历大的非弹性变形，从而模拟了现浇桥柱的行为。通过各种地震级别，在所有连接中都保持了结构完整性。桥梁模型的施工程序确保了处理和连接不同预制构件的可行性。

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来源
《Journal of bridge engineering》 |2019年第9期|04019088.1-04019088.22|共22页
作者
Shoushtari Elmira; Saiidi M. Saiid; Itani Ahmad; Moustafa Mohamed A.;
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作者单位

Univ Nevada, Dept Civil & Environm Engn, Reno, NV 89557 USA;

Univ Nevada, Dept Civil & Environm Engn, Reno, NV 89557 USA;

Univ Nevada, Dept Civil & Environm Engn, Reno, NV 89557 USA;

Univ Nevada, Dept Civil & Environm Engn, Reno, NV 89557 USA;

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正文语种 eng
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关键词
Shake table test; Accelerated bridge construction (ABC); Steel girder; Rebar hinge; Grouted duct connection; Simple for dead continuous for live; Pocket (socket) connection; Ultrahigh-performance concrete; Precast;

机译：摇架测试;加速桥梁建设（ABC）;钢梁;钢筋铰链;灌浆管道连接;用于现场的死亡连续简单;口袋（插座）连接;超高性能混凝土;预制;

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Design, Construction, and Shake Table Testing of a Steel Girder Bridge System with ABC Connections

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