Bolted connections for non-intersecting H-section beam and column in steel moment frames
This research proposes connection configurations of two types for non-intersecting H-section steel beam and column. To elucidate the mechanical behavior of the proposed connections, full-scale moment connection tests and finite element analyses were conducted using T-shaped partial frame models. Comparisons between the proposed connections and regular intersecting connections demonstrate that the proposed connection is able to provide sufficient stiffness and energy-dissipation capacity if the beam and column flanges are designed to provide sufficient shear resistance. Then to understand the global behavior of frames using the proposed connections, pushover analyses of a two-story two-span frame were conducted. Because the bending moment of the beam acts on the column by a torque through the proposed connections, torsion spring models were incorporated for representing the proposed connections in 3D frame analysis. Analysis results showed that the girders and columns exhibited lower stiffness and strength than those of frames with intersecting connections because of torsion. To overcome this issue, torsion restraint by secondary beams with different configurations was discussed and optimal configuration was suggested. By utilizing the optimal configuration, torsion of girders and columns can be efficiently reduced into a similar level as that of regular intersecting connections.
This work is licensed under a Creative Commons Attribution 4.0 International License.
ANSYS 15.0. (2014). Users’ manual. ANSYS Inc., USA.
Asran, A. G., El-Esnawi, H. H., & Fayed, S. (2017). Experimental investigation of RC exterior beam column connection with eccentric beam subjected to reversible quasi static loads. Civil Engineering Journal, 3(4), 221-236.
Bayo, E., Cabrero, J. M., & Gil, B. (2006). An effective component-based method to model semi-rigid connections for the global analysis of steel and composite structures. Engineering Structures, 28(1), 97-108. https://doi.org/10.1016/j.engstruct.2005.08.001
Canbolat, B. B., & Wight, J. K. (2008). Experimental investigation on seismic behavior of eccentric reinforced concrete beam-column-slab connections. ACI Structural Journal, 105(2), 154-162.
Chen, W. F., & Kishi, N. (1989). Semirigid steel beam-to-column connections: Data base and modeling. Journal of Structural Engineering, 115(1), 105-119. https://doi.org/10.1061/(ASCE)0733-9445(1989)115:1(105)
Daryan, A. S., Sadri, M., Saberi, H., Saberi, V., & Moghadas, A. B. (2014). Behavior of semi-rigid connections and semi-rigid frames. The Structural Design of Tall and Special Buildings, 23, 210-238. https://doi.org/10.1002/tal.1032
Eurocode 3. (2005). Design of steel structures, part 1–8: Design of joints (EN 1993-1-8:2005). Brussels: European Committee for Standardization (CEN).
Grogan, W., & Surtees, J. O. (1999). Experimental behaviour of end plate connections reinforced with bolted backing angles. Journal of Constructional Steel Research, 50, 71-96. https://doi.org/10.1016/S0143-974X(98)00227-2
Lafave, J. M., Bonacci, J. F., Burak, B., & Shin, M. (2005). Eccentric beam-column connections. Concrete International, 27(9), 58-62.
Liu, C., & Tagawa, H. (2009). Panel zone strength of eccentric beam-to-wide flange column connections. Journal of Structural and Construction Engineering, Transaction of AIJ, 636, 375-384 (in Japanese). https://doi.org/10.3130/aijs.74.375
Masuda, H., Tanaka, A., Ishimaru, R., Hirai, K., & Sasaji, S. (2000). Experimental study of the statical characteristics of perimeter beam-to-SHS column connections using vertical stiffener plates. Journal of Structural and Construction Engineering, Transaction of AIJ, 534, 167-174 (in Japanese).
Miki, N., Yamada, S., Kishiki, S., Jiao, Y., & Hasegawa, T. (2015). Structural behavior of eccentric beam-to-RHS column connections. Journal of Structural and Construction Engineering, Transaction of AIJ, 710, 669-679 (in Japanese). https://doi.org/10.3130/aijs.80.669
Mirghaderi, S. R., & Renani, M. D. (2008). The rigid seismic connection of continuous beams to column. Journal of Constructional Steel Research, 64(12), 1516-1529. https://doi.org/10.1016/j.jcsr.2008.01.015
Oshida, M., Ichinohe, Y., Saito, K., Fultmoto, T., Tachibana, M., & Morita, K. (2005). Experimental study on frame behaviors of connections with eccentricity between steel beam and concrete-filled square tubular steel column reinforced with through diaphragm. Steel Construction Engineering, 12, 17-30 (in Japanese). https://doi.org/10.11273/jssc1994.12.48_17
Pirmoz, A., Khoei, A. S., Mohammadrezapour, E., & Daryan, A. S. (2009). Moment–rotation behavior of bolted top–seat angle connections. Journal of Constructional Steel Research, 65(4), 973-984. https://doi.org/10.1016/j.jcsr.2008.08.011
Shi, Z., & Fan, J. (2018). Analytical investigation on effective elastic stiffness of eccentric steel beam-column joints. Advances in Structural Engineering, 21(1), 125-137. https://doi.org/10.1177/1369433217711619
Soya, K., Sato, E., Komuro, T., Yasuda, S., & Nishimoto, S. (2010). Narihara H. Structural performance of eccentric beam-column joints composed of reinforced concrete columns and steel beams – Part 1 Outline of experiment, and Part 2 Evaluation of stiffness and strength. In Summaries of Technical Papers of Annual Meeting. AIJ (pp. 1307-1310) (in Japanese).
Tagawa, H., & Liu, Y. (2014). Stiffening of bolted end-plate connections with steel member assemblies. Journal of Constructional Steel Research, 103, 190-199. https://doi.org/10.1016/j.jcsr.2014.09.005
Vollum, R. L., & Newman, J. B. (1999). Towards the design of reinforced concrete eccentric beam-column joints. Magazine of Concrete Research, 51(6), 397-407. https://doi.org/10.1680/macr.19188.8.131.527
Yamada, S., Yoshie, K., Kouno, T., & Kojima, D. (2010). Experimental study on the structural performance of non-intersection type steel beam-to-column connection. Journal of Structural and Construction Engineering, Transaction of AIJ, 656, 1901-1908 (in Japanese). https://doi.org/10.3130/aijs.75.1901