Internal Force Analysis and Field Test of Lattice Beam Based on Winkler Theory for Elastic Foundation Beam
Li, Jingbang1,2; Zhu, Yanpeng1,2; Ye, Shuaihua1,2; Ma, Xiaorui1,2
2019-11-18
Source PublicationMATHEMATICAL PROBLEMS IN ENGINEERING
ISSN1024-123X
Volume2019
AbstractAs a new flexible supporting structure, prestressed anchor cable lattice beams have been widely used in high-slope support engineering and have achieved good results. However, theoretical research on the internal force analysis of lattice beams is far behind engineering practice. Based on the theory of the Winkler elastic foundation model, a mechanical model of a prestressed anchor cable lattice beam at the tension stage was established. Considering the nonhomogeneous lattice beam materials, a calculation method was given and applied to engineering examples. A calculation method of the measured moment was introduced in the field test conducted in the Zhouqu County "88" debris flow disaster reconstruction project. Comparisons between the test results and the theoretical results were performed. The results showed that the theoretical results of the distribution trend of the lattice beam moment were consistent with the test results, which verified the rationality of the proposed calculation method. The inertia moment of the beam section solved by the transformed section method was more realistic. The results of the transformed section method could improve the bending resistance of the lattice beam and reduce the reinforcement ratio. The greater the anchoring force was, the more obvious the lifting effect was. The anchoring force was an important influencing factor of the internal force of the lattice beam. The greater the anchoring force was, the greater the lattice beam moment was, and they showed the same proportional change phenomenon. Compared with the theoretical moment, the measured moment obtained by the test was smaller, which indicated that the lattice beam of the tested slope was safe at the present stage.
DOI10.1155/2019/5130654
Indexed BySCI
Language英语
Funding ProjectProgram for Changjiang Scholars and Innovative Research Team in University[IRT_17R51] ; National Natural Science Foundation of China[51768040]
WOS Research AreaEngineering ; Mathematics
WOS SubjectEngineering, Multidisciplinary ; Mathematics, Interdisciplinary Applications
WOS IDWOS:000501597600002
PublisherHINDAWI LTD
Citation statistics
Cited Times [WOS]:0   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/64275
Collection土木工程学院
Corresponding AuthorLi, Jingbang
Affiliation1.Lanzhou Univ Technol, Key Lab Disaster Prevent & Mitigat Civil Engn Gan, Lanzhou 730050, Gansu, Peoples R China
2.Lanzhou Univ Technol, Western Engn Res Ctr Disaster Mitigat Civil Engn, Minist Educ, Lanzhou 730050, Gansu, Peoples R China
First Author AffilicationLanzhou University of Technology
Corresponding Author AffilicationLanzhou University of Technology
First Signature AffilicationLanzhou University of Technology
Recommended Citation
GB/T 7714
Li, Jingbang,Zhu, Yanpeng,Ye, Shuaihua,et al. Internal Force Analysis and Field Test of Lattice Beam Based on Winkler Theory for Elastic Foundation Beam[J]. MATHEMATICAL PROBLEMS IN ENGINEERING,2019,2019.
APA Li, Jingbang,Zhu, Yanpeng,Ye, Shuaihua,&Ma, Xiaorui.(2019).Internal Force Analysis and Field Test of Lattice Beam Based on Winkler Theory for Elastic Foundation Beam.MATHEMATICAL PROBLEMS IN ENGINEERING,2019.
MLA Li, Jingbang,et al."Internal Force Analysis and Field Test of Lattice Beam Based on Winkler Theory for Elastic Foundation Beam".MATHEMATICAL PROBLEMS IN ENGINEERING 2019(2019).
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