Numerical and experimental study on proposed T-form semi-precast moment-resisting concrete connections

Document Type : Article

Authors

Faculty of Engineering, Department of Civil Engineering, Razi University, Kermanshah, P.O. Box 6714967346, Iran

Abstract

This paper presents the results of experimental and numerical study on a proposed exterior semi-precast moment-resisting concrete connection. Steel linkage element connects precast concrete beam to column in two cases of bolted and welded connections. These connections were compared to monolithic connection based on stiffness, strength, energy dissipation capacity and ductility factor. An accurate 3D nonlinear finite element model has been simulated to study the behavior of these connections. A good agreement was observed between numerical results and experimental ones in behavior and damage mode. Although, all samples satisfied all the code criteria, but the trend of failure in bolted and welded connection was observed on the weld and bolts area, at the connection zone between beam and steel linkage. However, in monolithic connection, the yielding was observed in rebars and crushing of concrete at the end of beam. The initial stiffness of bolted and welded connection specimen was less than that of monolithic connection specimen. But, the beam moment capacity factors of these samples were a little more than monolithic sample; so, the ductility factors of them were a little less than that of monolithic sample.

Keywords

Main Subjects


References
1. Ertas, p., Ozden, S., and Ozturan, T. \Ductile connections
in precast concrete moment resisting frames",
PCI., 51(3), pp. 66{76 (2006).
2. Senel, S.M. and Kayhan, A.H. \Fragility based damage
assessment in existing precast industrial buildings: A
case study for Turkey", Structural Engineering and
Mechanics, 34(1), pp. 39{60 (2010).
3. Negro, P., Bournas D.A., and Molina, F.J. \Pseudo
dynamic tests on a full-scale 3-story precast concrete
building global response", Engineering Structures,
57(4), pp. 594{608 (2013).
4. Bournas, D.A., Negro P., and Molina, F.J. \Pseudo
dynamic tests on a full-scale 3-story precast concrete
building: Behavior of the mechanical connections and

oor diaphragms", Engineering Structures, 57(4), pp.
609{627 (2013).
5. Choi, H.K., Choi, Y.C., and Choi, C.S. \Development
and testing of precast concrete beam-to-column connections",
Engineering Structures, 56, pp. 1820{1835
(2013).
6. Shariatmadar, H. and Zamani Beydokhti, E. \An
investigation of seismic response of precast concrete
beam to column connections: Experimental study",
M. Fathi and M. Parvizi/Scientia Iranica, Transactions A: Civil Engineering 28 (2021) 85{95 95
Asian Journal of Civil Engineering, 15(1), pp. 41{59
(2014).
7. Zoubek, B., Fahjan, Y., Fischinger, M., and Isakovic,
T. \Nonlinear nite element modelling of centric dowel
connections in precast buildings", Computers and
Concrete, 14(4), pp. 463{477 (2014).
8. Vidjeapriya, R., Vasanthalakshmi, V., and Jaya,
K.P. \Performance of exterior precast concrete beamcolumn
dowel connections under cyclic loading", International
Journal of Civil Engineering, 12(1), pp. 82{95
(2014).
9. Kataoka, M.N., Ferreira, M.A., and El Debs, A.L.H.C.
\Study on the behavior of beam-column connection in
precast concrete structure", Computers and Concrete,
16(1), pp. 163{178 (2015).
10. Yuksel, E., Karadogan, F.H., Bal, E.I., Ilki, A., Bal,
A., and Inci, P. \Seismic behavior of two exterior
beam-column connection made of normal-strenght concrete
developed for precast construction", Engineering
Structures, 99, pp. 157{172 (2015).
11. Guan, D., Guo, Z., Xiao, Q., and Zheng, Y. \Experimental
study of a new beam-to-column connection for
precast concrete frames under reversal cyclic loading",
Advances in Structural Engineering, 19(3), pp. 529{
545 (2016).
12. Fleischman, R.B. and Kim Seeber, P.E. \New construction
for resilient cities: The argument for sustainable
low damage precast/prestressed concrete building
structures in the 21st century", International Journal
of Scientia Iranica, 23(4), pp. 1578{1593 (2016).
13. Aninthaneni, P.K. and Dhakal, R.P. \Demountable
precast concrete frame building system for seismic
regions: conceptual development", Journal of Architectural
Engineering, 23(4), p. 1593 (2017).
14. Fathi, M., Parvizi, M., Karimi, J., and Afroedoun,
M.H. \Experimental and numerical study on a proposed
moment-resisting connection for precast concrete
frames", International Journal of Scientia Iranica,
25(4), pp. 1977{1986 (2018).
15. ACI T1.1-01 \Acceptance criteria for moment frames
based on structural testing", Reported by ACI Innovation
Task Group 1 and Collaborators (2001).
16. Bahrami, S., Madhkhan, M., Shirmohammadi, F., and
Nazemi, N. \Behavior of two new moment resisting
precast beam to column connections subjected to
lateral loading", Engineering Structures, 132, pp. 808{
821 (2017).
17. Yan, Q., Chen, T., and Xie, Z. \Seismic experimental
study on a precast concrete beam-column connection
with grout sleeves", Engineering Structures, 155, pp.
330{344 (2018).
18. Lago, B.D., Negro, P., and Lago, D.A. \Seismic design
and performance of dry-assembled precast structures
with adaptable joints", Soil Dynamics and Earthquake
Engineering, 166, pp. 182{195 (2018).
19. Fathi, M. and Afroedoun, M.H., Experimental Study of
a New Rigid Connection for Precast Concrete Structures,
Ministry of Science, Research and Technology,
Razi university, Engineering faculty (2013)
20. Geraldine, S.C., William, C.S., and Nakaki, S.D.,
Simpli ed Design Procedure for Hybrid Precast Concrete
Connections , National Institute of Standard and
Technology (1996),
21. ACI Committee 318, Building Code Requirements for
Structural Concrete (318-05) and Commentary-(318R-
05), ACI, Farmington Hills, Michigan (2005).
22. Han, L.H. and Li, W. \Seismic performance of CFST
column to steel beam joints with RC slab: analysis",
Journal of Constructional Steel Research., 67, pp. 127{
139 (2011).
23. Hognestad, E. \A study on combined bending and
axial load in reinforced concrete members", Univ. of
Illinois Engineering Experiment Station, Urbana, pp.
43{46 (1951).
24. Pagoulatou, M., Sheehan, T., Dai, X.H., and Lam,
D. \Finite element analysis on the capacity of circular
concrete- lled double-skin steel tubular (CFDST) stub
columns", Journal of Engineering Structures, 72, pp.
102{112 (2014).
25. Simulia Inc. \ABAQUS Standard (Abaqus/ CAE
2018)" (2018).
26. Murcia-Delso, J., Stavridis, A., and Shing, B. \Modeling
the bond-slip behavior of con ned large diameter
reinforcing bars", III ECCOMAS Thematic
Conference on Computational Methods in Structural
Dynamics and Earthquake Engineering, Corfu, Greece
(2011).