摘要
渡槽对农业灌溉和南水北调工程起着重要作用。为了探讨输水时渡槽支承系统结构的受力特点和施工技术,设计制作了渡槽支承系统结构模型,采用SAP2000有限元软件对模型进行受力分析,并通过加载试验验证了该模型的可行性。结果表明:模型各构件均为“双向压弯”受力状态,拱桥弧拱段直杆、端部竖杆以及刚架桥竖向构件受力相对较大,加载时模型在持荷阶段受力最不利,拱桥端柱和刚架桥斜向接地拉条易局部破坏而造成模型整体倒塌;数值模拟分析结果和加载结果一致,“大跨度拱桥和连续刚架桥相结合”的模型结构方案可行。
Aqueduct plays an important role in agricultural irrigation and south-north water diversion project.In order to explore the mechanical characteristics and construction technology of aqueduct supporting system structure during water delivery,the structural model of aqueduct support system is designed and made.The force analysis of the model is carried out by using SAP2000 finite element software,and the feasibility of the model is verified by loading experiment.The results show that all the components of the model are“bi-directional bending”,the vertical components of arch section,end vertical bar and rigid frame bridge bear relatively large forces,the model is most unfavorable in the loading stage,and the end column of arch bridge and the diagonal grounding brace of rigid frame bridge are easy to be damaged locally,resulting in the overall collapse of the model.The numerical simulation results are consistent with the loading results,indicating that the model struture scheme of“the combination of long-span arch bridge and continuous rigid frame bridge”is feasible.
作者
付善春
寇文飞
沈红艳
王冬冬
尹祖兴
王亮
FU Shanchun;KOU Wenfei;SHEN Hongyan;WANG Dongdong;YIN Zuxing;WANG Liang(Department of civil engineering, Xinyang College, Xinyang 464000, China;Yongwei Property Group Co., Ltd., Zhengzhou 450000, China;Xinyang College Library, Xinyang 464000, China)
出处
《中原工学院学报》
CAS
2020年第4期32-39,共8页
Journal of Zhongyuan University of Technology
基金
河南省教育科学“十三五”规划一般课题(2020YB0366)
河南省民办教育协会2019年度立项课题(HMXL-20190438)
信阳学院校级科研项目(2020-XJLYB-002)
信阳学院民办高等教育研究课题(2019MYYB11)
信阳学院教育教学改革研究项目(2019YJG16)。
