Internal Force Analysis and Field Test of Lattice Beam Based on Winkler Theory for Elastic Foundation Beam

doi:10.1155/2019/5130654

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Internal Force Analysis and Field Test of Lattice Beam Based on Winkler Theory for Elastic Foundation Beam
	Li, Jingbang 1; Zhu, Yanpeng 1; Ye, Shuaihua 2; Ma, Xiaorui 1
刊名	Mathematical Problems in Engineering
	2019
卷号	2019
关键词	Anchor cables Anchorages (concrete construction) Rock bolting Testing
ISSN号	1024123X
DOI	10.1155/2019/5130654
英文摘要	As 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 "8·8" 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. © 2019 Jingbang Li et al.
WOS研究方向	Engineering ; Mathematics
语种	英语
出版者	Hindawi Limited, 410 Park Avenue, 15th Floor, 287 pmb, New York, NY 10022, United States
WOS记录号	WOS:000501597600002
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/151252]
专题	土木工程学院
作者单位	1.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Western Engineering Research Center of Disaster Mitigation in Civil Engineering, Ministry of Education, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 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).