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城际铁路单跨门式刚构设计研究
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作者 冀奎名 《铁道勘测与设计》 2024年第3期54-56,共3页
结合工程设计实例,通过调整刚构的墩高、桥墩壁厚及承台底边界条件来改变结构刚度,研究单跨门式刚构刚度对桥梁结构受力的影响。结果表明对于单跨门式刚构桥,桥墩刚度对于梁部受力影响较小;桥墩刚度越大,桥墩的恒载弯矩越大;承台底的边... 结合工程设计实例,通过调整刚构的墩高、桥墩壁厚及承台底边界条件来改变结构刚度,研究单跨门式刚构刚度对桥梁结构受力的影响。结果表明对于单跨门式刚构桥,桥墩刚度对于梁部受力影响较小;桥墩刚度越大,桥墩的恒载弯矩越大;承台底的边界条件对结构体系内力影响较大,应考虑桩土相互作用的影响;m值越大,墩顶恒载弯矩越大,主梁梁端恒载负弯矩绝对值越大,整体温度、梯度温度效应对应的弯矩也越大,应考虑不同m取值下结构内力差异,并按照最不利结果进行设计。 展开更多
关键词 单跨门式刚构 刚度 桩土作用 M法
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SEE Laboratory: Single-Story, Single-Bay Portal Frame
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作者 Jessica Opinion Veronica Rico +2 位作者 Melissa Guardado David Boyajian Tadeh Zirakian 《Journal of Civil Engineering and Architecture》 2017年第5期442-447,共6页
This research paper describes an SEE (Structural Engineering Encounter) Lab project. The paper reports on the development of a single-story, single-bay portal frame model as part of the AIMS2 (attract, inspire, men... This research paper describes an SEE (Structural Engineering Encounter) Lab project. The paper reports on the development of a single-story, single-bay portal frame model as part of the AIMS2 (attract, inspire, mentor and support students) grant supported through the US DOE (Department of Education) summer research program at California State University, Northridge. This research effort is part of a comprehensive program to develop laboratory models of structures commonly encountered in civil engineering practice, which can serve the dual purpose of accomplishing engineering education and research in the areas of structural and earthquake engineering. The objective of the present study was to construct a physical model of the aforementioned frame to experimentally collect data due to the application of vertical and lateral loadings through instrumentation such as strain gages and an LVDT (linear variable differential transformer) displacement transducer, and also to make comparisons with theoretical and numerical predictions. 展开更多
关键词 SEE lab active learning portal frame EXPERIMENTATION THEORY numerical simulation.
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