Browse > Article
http://dx.doi.org/10.9712/KASS.2019.19.1.83

Experimental and Application Examples of Composite Beams Strengthened by Lower End Compression Member and Upper Tension Reinforcement  

Oh, Jung-Keun (College of Architecture, Konkuk University)
Shim, Nam-Ju (Hybrix E&C, Precast Concrete Team)
Publication Information
Journal of Korean Association for Spatial Structures / v.19, no.1, 2019 , pp. 83-91 More about this Journal
Abstract
The BX composite beam is designed to have the same cross-section regardless of the size of the momentum, which is a disadvantage of the existing steel structure. Combination of the H-beam end compressive material and the H-section steel tensile reinforcement according to the moment size in a single span, It is possible to say that it is an excellent synthesis which increases the performance. When underground and overhead structures are constructed, it is possible to reduce the bending, increase lateral stiffness, reduce construction cost, and simplify joints. The seamability of the joining part is a simple steel composite beam because of the decrease of the beam damping at the center of the beam and the use of the end plate of the new end compressing material. In the case of structures with long span structure and high load, it is advantageous to reduce the material cost by designing large steel which is high in price at less than medium steel.
Keywords
BX composite beam; Moment size; H-beam; Tensile reinforcement; End plate;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Kim, G. Y., Choi, C. S., Cho, Y. S., Shim, N. J., & Kim, J. H. (2009). Structural Behavior of Partially Encased Composite Beam In Prestressed Concrete Using T-shaped Steel. Proceedings of the Architectural Institute of Korea, Republic of Korea, Vol.29, No.1, pp.299-302
2 Woo, J. Y., Hong, S. W., & Doh, S. B., "Special Issue : The Construction Method of ES(Economic Steel) Beam Used Steel Beam with Both Members of Different Depth", Magazine and Journal of Korean Society of Steel Construction, Vol.24, No.2, pp.6-14, 2012
3 Ryoo, J. Y., Chae, H. S., & Choi, S. M. (2011). Economic evaluation of composite beams (Eco-girder) Characterized by end-reinforcement with steel plates and concrete. Proceedings of the Architectural Institute of Korea, Republic of Korea, Vol.31, No.1, pp.33-34
4 Murray, T. M., & Sumner, E. A., "Design Guide 4: Extended End-Plate Moment Connections Seismic and Wind Applications", 2nd ed., American Institute of Steel Construction, pp.19-24, 2003.
5 The Korean Structural Engineers Association, "H-Shape Steel Connection Design Manual (based on the latest KBC)", Goomibook Inc., pp.634-635, 2016.
6 Seo, S. J. (2016). A Study on Connection Details of Composite Beam composed of H-shaped Steel and Bottom T-shaped structural steel and Top Tensile Reinforcement (Master's thesis). Konkuk University, Republic of Korea.