Browse > Article
http://dx.doi.org/10.9711/KTAJ.2016.18.2.165

Performance evaluation of lattice girder depending on the quality of steel  

Jung, Hyuk-Sang (Department of Railroad Civil Engineering, Dongyang University)
Shin, Young-Wan (Hakyung Engineering CO., Ltd.)
Song, Ki-Il (Department of Civil Engineering, Inha University)
Shin, Jong-Ho (Department of Civil Engineering, Konkuk University)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.18, no.2, 2016 , pp. 165-173 More about this Journal
Abstract
This paper dealt with contents on the performance evaluation of standardized steel and non-standardized steel of lattice girder. Lattice girder is arch type tunnel supports made of structural steel bar and it is girder used to ensure the stability of tunnel by suppressing any transformation of ground as much as possible during tunnel excavation. The performance evaluation of lattice girder can be conducted through bending strength test, tensile strength test and tunnel standard specification specifies that welding structural steel with over 500MPa yield strength shall be used. However, it is difficult to distinguish visually between standardized steel and non-standardized steel onsite if low-quality structural steel is used. Accordingly, this paper conducted performance evaluation of standardized steel and non-standardized steel of lattice girder to point out the issue of deteriorated yield strength of non-standardized steel, while proposed a method of verifying yield strength onsite.
Keywords
Lattice girder; Non-standardized lattice girder; Yield strength; Performance evaluation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Kim, D.K., Bae, G.J. (2008), "Develope of a laboratory testing method for evaluating the loading capability of lattice girser", Korean Tunnelling and Underground Space Technology, Vol. 10, No. 4, pp. 1-12.
2 Kim, D.K., Bae, G.J. (2011), "BK-Lattice girder", Korean Tunnelling and Underground Space Technology, pp. 435-440.
3 Kim, D.K., Lee, S.H., Choi, Y.N. (2008), "Evaluation of loading capacity of lattice girder according to laboratory testing method", 2008 Proceedings of Korean Geo-Environmental Society, Korean Geo-Environmental Society, pp. 399-460.
4 Kim, D.K., Lee, S.H., Kim, N.Y. (2009), "Status and capacity of lattice girder", 2009 Proceedings of Korean Geo-Environmental Society, pp. 371-380.
5 Ministry of Land, Infrastructure and Transport (2015), "Guidelines for the design of tunnel", pp. 48-50.
6 Ministry of Land, Infrastructure and Transport (2015), "Tunnel construction guide specification", pp. 35-39.
7 Moon, H.D. (1999), "Evaluation on the applicability of a lattice girder for a support system in tunnelling", Korean Society for Rock Mechanics, pp. 204-213.